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1 /* |
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2 ASCIIMathML.js |
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3 ============== |
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4 This file contains JavaScript functions to convert ASCII math notation |
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5 and LaTeX to Presentation MathML. Simple graphics commands are also |
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6 translated to SVG images. The conversion is done while the (X)HTML |
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7 page loads, and should work with Firefox/Mozilla/Netscape 7+ and Internet |
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8 Explorer 6/7 + MathPlayer (http://www.dessci.com/en/products/mathplayer/) + |
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9 Adobe SVGview 3.03 (http://www.adobe.com/svg/viewer/install/). |
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10 |
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11 Just add the next line to your (X)HTML page with this file in the same folder: |
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12 |
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13 <script type="text/javascript" src="ASCIIMathML.js"></script> |
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14 |
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15 (using the graphics in IE also requires the file "d.svg" in the same folder). |
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16 This is a convenient and inexpensive solution for authoring MathML and SVG. |
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17 |
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18 Version 2.0.1 Sept 27, 2007, (c) Peter Jipsen http://www.chapman.edu/~jipsen |
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19 This version extends ASCIIMathML.js with LaTeXMathML.js and ASCIIsvg.js. |
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20 Latest version at http://www.chapman.edu/~jipsen/mathml/ASCIIMathML.js |
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21 If you use it on a webpage, please send the URL to jipsen@chapman.edu |
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22 |
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23 The LaTeXMathML modifications were made by Douglas Woodall, June 2006. |
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24 (for details see header on the LaTeXMathML part in middle of file) |
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25 |
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26 This program is free software; you can redistribute it and/or modify |
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27 it under the terms of the GNU Lesser General Public License as published by |
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28 the Free Software Foundation; either version 2.1 of the License, or (at |
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29 your option) any later version. |
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30 |
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31 This program is distributed in the hope that it will be useful, but WITHOUT |
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32 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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33 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
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34 (at http://www.gnu.org/licences/lgpl.html) for more details. |
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35 */ |
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36 |
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37 var mathcolor = "blue"; // change it to "" (to inherit) or another color |
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38 var mathfontsize = "1em"; // change to e.g. 1.2em for larger math |
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39 var mathfontfamily = "serif"; // change to "" to inherit (works in IE) |
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40 // or another family (e.g. "arial") |
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41 var automathrecognize = false; // writing "amath" on page makes this true |
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42 var checkForMathML = true; // check if browser can display MathML |
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43 var notifyIfNoMathML = true; // display note at top if no MathML capability |
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44 var alertIfNoMathML = false; // show alert box if no MathML capability |
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45 var translateOnLoad = true; // set to false to do call translators from js |
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46 var translateLaTeX = true; // false to preserve $..$, $$..$$ |
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47 var translateLaTeXformatting = true; // false to preserve \emph,\begin{},\end{} |
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48 var translateASCIIMath = true; // false to preserve `..` |
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49 var translateASCIIsvg = true; // false to preserve agraph.., \begin{graph}.. |
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50 var avoidinnerHTML = false; // set true if assigning to innerHTML gives error |
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51 var displaystyle = true; // puts limits above and below large operators |
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52 var showasciiformulaonhover = true; // helps students learn ASCIIMath |
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53 var decimalsign = "."; // change to "," if you like, beware of `(1,2)`! |
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54 var AMdelimiter1 = "`", AMescape1 = "\\\\`"; // can use other characters |
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55 var AMdocumentId = "wikitext" // PmWiki element containing math (default=body) |
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56 var checkforprocessasciimathinmoodle = false; // true for systems like Moodle |
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57 var dsvglocation = ""; // path to d.svg (blank if same as ASCIIMathML.js loc) |
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58 |
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59 var isIE = document.createElementNS==null; |
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60 |
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61 if (document.getElementById==null) |
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62 alert("This webpage requires a recent browser such as\ |
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63 \nMozilla/Netscape 7+ or Internet Explorer 6+MathPlayer") |
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64 |
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65 // all further ASCIIMathML global variables start with "AM" |
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66 |
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67 function AMcreateElementXHTML(t) { |
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68 if (isIE) return document.createElement(t); |
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69 else return document.createElementNS("http://www.w3.org/1999/xhtml",t); |
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70 } |
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71 |
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72 function AMnoMathMLNote() { |
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73 var nd = AMcreateElementXHTML("h3"); |
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74 nd.setAttribute("align","center") |
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75 nd.appendChild(AMcreateElementXHTML("p")); |
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76 nd.appendChild(document.createTextNode("To view the ")); |
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77 var an = AMcreateElementXHTML("a"); |
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78 an.appendChild(document.createTextNode("ASCIIMathML")); |
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79 an.setAttribute("href","http://www.chapman.edu/~jipsen/asciimath.html"); |
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80 nd.appendChild(an); |
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81 nd.appendChild(document.createTextNode(" notation use Internet Explorer 6+")); |
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82 an = AMcreateElementXHTML("a"); |
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83 an.appendChild(document.createTextNode("MathPlayer")); |
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84 an.setAttribute("href","http://www.dessci.com/en/products/mathplayer/download.htm"); |
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85 nd.appendChild(an); |
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86 nd.appendChild(document.createTextNode(" or Netscape/Mozilla/Firefox")); |
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87 nd.appendChild(AMcreateElementXHTML("p")); |
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88 return nd; |
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89 } |
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90 |
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91 function AMisMathMLavailable() { |
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92 if (navigator.appName.slice(0,8)=="Netscape") |
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93 if (navigator.appVersion.slice(0,1)>="5") return null; |
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94 else return AMnoMathMLNote(); |
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95 else if (navigator.appName.slice(0,9)=="Microsoft") |
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96 try { |
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97 var ActiveX = new ActiveXObject("MathPlayer.Factory.1"); |
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98 return null; |
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99 } catch (e) { |
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100 return AMnoMathMLNote(); |
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101 } |
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102 else return AMnoMathMLNote(); |
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103 } |
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104 |
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105 // character lists for Mozilla/Netscape fonts |
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106 var AMcal = [0xEF35,0x212C,0xEF36,0xEF37,0x2130,0x2131,0xEF38,0x210B,0x2110,0xEF39,0xEF3A,0x2112,0x2133,0xEF3B,0xEF3C,0xEF3D,0xEF3E,0x211B,0xEF3F,0xEF40,0xEF41,0xEF42,0xEF43,0xEF44,0xEF45,0xEF46]; |
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107 var AMfrk = [0xEF5D,0xEF5E,0x212D,0xEF5F,0xEF60,0xEF61,0xEF62,0x210C,0x2111,0xEF63,0xEF64,0xEF65,0xEF66,0xEF67,0xEF68,0xEF69,0xEF6A,0x211C,0xEF6B,0xEF6C,0xEF6D,0xEF6E,0xEF6F,0xEF70,0xEF71,0x2128]; |
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108 var AMbbb = [0xEF8C,0xEF8D,0x2102,0xEF8E,0xEF8F,0xEF90,0xEF91,0x210D,0xEF92,0xEF93,0xEF94,0xEF95,0xEF96,0x2115,0xEF97,0x2119,0x211A,0x211D,0xEF98,0xEF99,0xEF9A,0xEF9B,0xEF9C,0xEF9D,0xEF9E,0x2124]; |
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109 |
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110 var CONST = 0, UNARY = 1, BINARY = 2, INFIX = 3, LEFTBRACKET = 4, |
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111 RIGHTBRACKET = 5, SPACE = 6, UNDEROVER = 7, DEFINITION = 8, |
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112 LEFTRIGHT = 9, TEXT = 10; // token types |
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113 |
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114 var AMsqrt = {input:"sqrt", tag:"msqrt", output:"sqrt", tex:null, ttype:UNARY}, |
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115 AMroot = {input:"root", tag:"mroot", output:"root", tex:null, ttype:BINARY}, |
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116 AMfrac = {input:"frac", tag:"mfrac", output:"/", tex:null, ttype:BINARY}, |
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117 AMdiv = {input:"/", tag:"mfrac", output:"/", tex:null, ttype:INFIX}, |
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118 AMover = {input:"stackrel", tag:"mover", output:"stackrel", tex:null, ttype:BINARY}, |
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119 AMsub = {input:"_", tag:"msub", output:"_", tex:null, ttype:INFIX}, |
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120 AMsup = {input:"^", tag:"msup", output:"^", tex:null, ttype:INFIX}, |
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121 AMtext = {input:"text", tag:"mtext", output:"text", tex:null, ttype:TEXT}, |
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122 AMmbox = {input:"mbox", tag:"mtext", output:"mbox", tex:null, ttype:TEXT}, |
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123 AMquote = {input:"\"", tag:"mtext", output:"mbox", tex:null, ttype:TEXT}; |
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124 |
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125 var AMsymbols = [ |
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126 //some greek symbols |
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127 {input:"alpha", tag:"mi", output:"\u03B1", tex:null, ttype:CONST}, |
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128 {input:"beta", tag:"mi", output:"\u03B2", tex:null, ttype:CONST}, |
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129 {input:"chi", tag:"mi", output:"\u03C7", tex:null, ttype:CONST}, |
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130 {input:"delta", tag:"mi", output:"\u03B4", tex:null, ttype:CONST}, |
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131 {input:"Delta", tag:"mo", output:"\u0394", tex:null, ttype:CONST}, |
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132 {input:"epsi", tag:"mi", output:"\u03B5", tex:"epsilon", ttype:CONST}, |
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133 {input:"varepsilon", tag:"mi", output:"\u025B", tex:null, ttype:CONST}, |
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134 {input:"eta", tag:"mi", output:"\u03B7", tex:null, ttype:CONST}, |
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135 {input:"gamma", tag:"mi", output:"\u03B3", tex:null, ttype:CONST}, |
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136 {input:"Gamma", tag:"mo", output:"\u0393", tex:null, ttype:CONST}, |
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137 {input:"iota", tag:"mi", output:"\u03B9", tex:null, ttype:CONST}, |
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138 {input:"kappa", tag:"mi", output:"\u03BA", tex:null, ttype:CONST}, |
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139 {input:"lambda", tag:"mi", output:"\u03BB", tex:null, ttype:CONST}, |
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140 {input:"Lambda", tag:"mo", output:"\u039B", tex:null, ttype:CONST}, |
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141 {input:"mu", tag:"mi", output:"\u03BC", tex:null, ttype:CONST}, |
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142 {input:"nu", tag:"mi", output:"\u03BD", tex:null, ttype:CONST}, |
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143 {input:"omega", tag:"mi", output:"\u03C9", tex:null, ttype:CONST}, |
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144 {input:"Omega", tag:"mo", output:"\u03A9", tex:null, ttype:CONST}, |
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145 {input:"phi", tag:"mi", output:"\u03C6", tex:null, ttype:CONST}, |
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146 {input:"varphi", tag:"mi", output:"\u03D5", tex:null, ttype:CONST}, |
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147 {input:"Phi", tag:"mo", output:"\u03A6", tex:null, ttype:CONST}, |
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148 {input:"pi", tag:"mi", output:"\u03C0", tex:null, ttype:CONST}, |
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149 {input:"Pi", tag:"mo", output:"\u03A0", tex:null, ttype:CONST}, |
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150 {input:"psi", tag:"mi", output:"\u03C8", tex:null, ttype:CONST}, |
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151 {input:"Psi", tag:"mi", output:"\u03A8", tex:null, ttype:CONST}, |
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152 {input:"rho", tag:"mi", output:"\u03C1", tex:null, ttype:CONST}, |
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153 {input:"sigma", tag:"mi", output:"\u03C3", tex:null, ttype:CONST}, |
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154 {input:"Sigma", tag:"mo", output:"\u03A3", tex:null, ttype:CONST}, |
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155 {input:"tau", tag:"mi", output:"\u03C4", tex:null, ttype:CONST}, |
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156 {input:"theta", tag:"mi", output:"\u03B8", tex:null, ttype:CONST}, |
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157 {input:"vartheta", tag:"mi", output:"\u03D1", tex:null, ttype:CONST}, |
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158 {input:"Theta", tag:"mo", output:"\u0398", tex:null, ttype:CONST}, |
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159 {input:"upsilon", tag:"mi", output:"\u03C5", tex:null, ttype:CONST}, |
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160 {input:"xi", tag:"mi", output:"\u03BE", tex:null, ttype:CONST}, |
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161 {input:"Xi", tag:"mo", output:"\u039E", tex:null, ttype:CONST}, |
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162 {input:"zeta", tag:"mi", output:"\u03B6", tex:null, ttype:CONST}, |
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163 |
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164 //binary operation symbols |
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165 //{input:"-", tag:"mo", output:"\u0096", tex:null, ttype:CONST}, |
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166 {input:"*", tag:"mo", output:"\u22C5", tex:"cdot", ttype:CONST}, |
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167 {input:"**", tag:"mo", output:"\u22C6", tex:"star", ttype:CONST}, |
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168 {input:"//", tag:"mo", output:"/", tex:null, ttype:CONST}, |
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169 {input:"\\\\", tag:"mo", output:"\\", tex:"backslash", ttype:CONST}, |
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170 {input:"setminus", tag:"mo", output:"\\", tex:null, ttype:CONST}, |
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171 {input:"xx", tag:"mo", output:"\u00D7", tex:"times", ttype:CONST}, |
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172 {input:"-:", tag:"mo", output:"\u00F7", tex:"divide", ttype:CONST}, |
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173 {input:"@", tag:"mo", output:"\u2218", tex:"circ", ttype:CONST}, |
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174 {input:"o+", tag:"mo", output:"\u2295", tex:"oplus", ttype:CONST}, |
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175 {input:"ox", tag:"mo", output:"\u2297", tex:"otimes", ttype:CONST}, |
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176 {input:"o.", tag:"mo", output:"\u2299", tex:"odot", ttype:CONST}, |
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177 {input:"sum", tag:"mo", output:"\u2211", tex:null, ttype:UNDEROVER}, |
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178 {input:"prod", tag:"mo", output:"\u220F", tex:null, ttype:UNDEROVER}, |
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179 {input:"^^", tag:"mo", output:"\u2227", tex:"wedge", ttype:CONST}, |
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180 {input:"^^^", tag:"mo", output:"\u22C0", tex:"bigwedge", ttype:UNDEROVER}, |
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181 {input:"vv", tag:"mo", output:"\u2228", tex:"vee", ttype:CONST}, |
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182 {input:"vvv", tag:"mo", output:"\u22C1", tex:"bigvee", ttype:UNDEROVER}, |
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183 {input:"nn", tag:"mo", output:"\u2229", tex:"cap", ttype:CONST}, |
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184 {input:"nnn", tag:"mo", output:"\u22C2", tex:"bigcap", ttype:UNDEROVER}, |
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185 {input:"uu", tag:"mo", output:"\u222A", tex:"cup", ttype:CONST}, |
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186 {input:"uuu", tag:"mo", output:"\u22C3", tex:"bigcup", ttype:UNDEROVER}, |
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187 |
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188 //binary relation symbols |
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189 {input:"!=", tag:"mo", output:"\u2260", tex:"ne", ttype:CONST}, |
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190 {input:":=", tag:"mo", output:":=", tex:null, ttype:CONST}, |
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191 {input:"lt", tag:"mo", output:"<", tex:null, ttype:CONST}, |
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192 {input:"<=", tag:"mo", output:"\u2264", tex:"le", ttype:CONST}, |
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193 {input:"lt=", tag:"mo", output:"\u2264", tex:"leq", ttype:CONST}, |
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194 {input:">=", tag:"mo", output:"\u2265", tex:"ge", ttype:CONST}, |
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195 {input:"geq", tag:"mo", output:"\u2265", tex:null, ttype:CONST}, |
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196 {input:"-<", tag:"mo", output:"\u227A", tex:"prec", ttype:CONST}, |
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197 {input:"-lt", tag:"mo", output:"\u227A", tex:null, ttype:CONST}, |
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198 {input:">-", tag:"mo", output:"\u227B", tex:"succ", ttype:CONST}, |
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199 {input:"-<=", tag:"mo", output:"\u2AAF", tex:"preceq", ttype:CONST}, |
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200 {input:">-=", tag:"mo", output:"\u2AB0", tex:"succeq", ttype:CONST}, |
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201 {input:"in", tag:"mo", output:"\u2208", tex:null, ttype:CONST}, |
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202 {input:"!in", tag:"mo", output:"\u2209", tex:"notin", ttype:CONST}, |
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203 {input:"sub", tag:"mo", output:"\u2282", tex:"subset", ttype:CONST}, |
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204 {input:"sup", tag:"mo", output:"\u2283", tex:"supset", ttype:CONST}, |
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205 {input:"sube", tag:"mo", output:"\u2286", tex:"subseteq", ttype:CONST}, |
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206 {input:"supe", tag:"mo", output:"\u2287", tex:"supseteq", ttype:CONST}, |
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207 {input:"-=", tag:"mo", output:"\u2261", tex:"equiv", ttype:CONST}, |
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208 {input:"~=", tag:"mo", output:"\u2245", tex:"cong", ttype:CONST}, |
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209 {input:"~~", tag:"mo", output:"\u2248", tex:"approx", ttype:CONST}, |
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210 {input:"prop", tag:"mo", output:"\u221D", tex:"propto", ttype:CONST}, |
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211 |
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212 //logical symbols |
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213 {input:"and", tag:"mtext", output:"and", tex:null, ttype:SPACE}, |
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214 {input:"or", tag:"mtext", output:"or", tex:null, ttype:SPACE}, |
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215 {input:"not", tag:"mo", output:"\u00AC", tex:"neg", ttype:CONST}, |
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216 {input:"=>", tag:"mo", output:"\u21D2", tex:"implies", ttype:CONST}, |
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217 {input:"if", tag:"mo", output:"if", tex:null, ttype:SPACE}, |
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218 {input:"<=>", tag:"mo", output:"\u21D4", tex:"iff", ttype:CONST}, |
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219 {input:"AA", tag:"mo", output:"\u2200", tex:"forall", ttype:CONST}, |
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220 {input:"EE", tag:"mo", output:"\u2203", tex:"exists", ttype:CONST}, |
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221 {input:"_|_", tag:"mo", output:"\u22A5", tex:"bot", ttype:CONST}, |
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222 {input:"TT", tag:"mo", output:"\u22A4", tex:"top", ttype:CONST}, |
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223 {input:"|--", tag:"mo", output:"\u22A2", tex:"vdash", ttype:CONST}, |
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224 {input:"|==", tag:"mo", output:"\u22A8", tex:"models", ttype:CONST}, |
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225 |
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226 //grouping brackets |
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227 {input:"(", tag:"mo", output:"(", tex:null, ttype:LEFTBRACKET}, |
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228 {input:")", tag:"mo", output:")", tex:null, ttype:RIGHTBRACKET}, |
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229 {input:"[", tag:"mo", output:"[", tex:null, ttype:LEFTBRACKET}, |
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230 {input:"]", tag:"mo", output:"]", tex:null, ttype:RIGHTBRACKET}, |
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231 {input:"{", tag:"mo", output:"{", tex:null, ttype:LEFTBRACKET}, |
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232 {input:"}", tag:"mo", output:"}", tex:null, ttype:RIGHTBRACKET}, |
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233 {input:"|", tag:"mo", output:"|", tex:null, ttype:LEFTRIGHT}, |
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234 //{input:"||", tag:"mo", output:"||", tex:null, ttype:LEFTRIGHT}, |
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235 {input:"(:", tag:"mo", output:"\u2329", tex:"langle", ttype:LEFTBRACKET}, |
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236 {input:":)", tag:"mo", output:"\u232A", tex:"rangle", ttype:RIGHTBRACKET}, |
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237 {input:"<<", tag:"mo", output:"\u2329", tex:null, ttype:LEFTBRACKET}, |
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238 {input:">>", tag:"mo", output:"\u232A", tex:null, ttype:RIGHTBRACKET}, |
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239 {input:"{:", tag:"mo", output:"{:", tex:null, ttype:LEFTBRACKET, invisible:true}, |
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240 {input:":}", tag:"mo", output:":}", tex:null, ttype:RIGHTBRACKET, invisible:true}, |
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241 |
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242 //miscellaneous symbols |
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243 {input:"int", tag:"mo", output:"\u222B", tex:null, ttype:CONST}, |
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244 {input:"dx", tag:"mi", output:"{:d x:}", tex:null, ttype:DEFINITION}, |
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245 {input:"dy", tag:"mi", output:"{:d y:}", tex:null, ttype:DEFINITION}, |
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246 {input:"dz", tag:"mi", output:"{:d z:}", tex:null, ttype:DEFINITION}, |
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247 {input:"dt", tag:"mi", output:"{:d t:}", tex:null, ttype:DEFINITION}, |
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248 {input:"oint", tag:"mo", output:"\u222E", tex:null, ttype:CONST}, |
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249 {input:"del", tag:"mo", output:"\u2202", tex:"partial", ttype:CONST}, |
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250 {input:"grad", tag:"mo", output:"\u2207", tex:"nabla", ttype:CONST}, |
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251 {input:"+-", tag:"mo", output:"\u00B1", tex:"pm", ttype:CONST}, |
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252 {input:"O/", tag:"mo", output:"\u2205", tex:"emptyset", ttype:CONST}, |
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253 {input:"oo", tag:"mo", output:"\u221E", tex:"infty", ttype:CONST}, |
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254 {input:"aleph", tag:"mo", output:"\u2135", tex:null, ttype:CONST}, |
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255 {input:"...", tag:"mo", output:"...", tex:"ldots", ttype:CONST}, |
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256 {input:":.", tag:"mo", output:"\u2234", tex:"therefore", ttype:CONST}, |
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257 {input:"/_", tag:"mo", output:"\u2220", tex:"angle", ttype:CONST}, |
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258 {input:"\\ ", tag:"mo", output:"\u00A0", tex:null, ttype:CONST}, |
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259 {input:"quad", tag:"mo", output:"\u00A0\u00A0", tex:null, ttype:CONST}, |
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260 {input:"qquad", tag:"mo", output:"\u00A0\u00A0\u00A0\u00A0", tex:null, ttype:CONST}, |
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261 {input:"cdots", tag:"mo", output:"\u22EF", tex:null, ttype:CONST}, |
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262 {input:"vdots", tag:"mo", output:"\u22EE", tex:null, ttype:CONST}, |
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263 {input:"ddots", tag:"mo", output:"\u22F1", tex:null, ttype:CONST}, |
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264 {input:"diamond", tag:"mo", output:"\u22C4", tex:null, ttype:CONST}, |
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265 {input:"square", tag:"mo", output:"\u25A1", tex:null, ttype:CONST}, |
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266 {input:"|__", tag:"mo", output:"\u230A", tex:"lfloor", ttype:CONST}, |
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267 {input:"__|", tag:"mo", output:"\u230B", tex:"rfloor", ttype:CONST}, |
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268 {input:"|~", tag:"mo", output:"\u2308", tex:"lceiling", ttype:CONST}, |
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269 {input:"~|", tag:"mo", output:"\u2309", tex:"rceiling", ttype:CONST}, |
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270 {input:"CC", tag:"mo", output:"\u2102", tex:null, ttype:CONST}, |
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271 {input:"NN", tag:"mo", output:"\u2115", tex:null, ttype:CONST}, |
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272 {input:"QQ", tag:"mo", output:"\u211A", tex:null, ttype:CONST}, |
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273 {input:"RR", tag:"mo", output:"\u211D", tex:null, ttype:CONST}, |
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274 {input:"ZZ", tag:"mo", output:"\u2124", tex:null, ttype:CONST}, |
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275 {input:"f", tag:"mi", output:"f", tex:null, ttype:UNARY, func:true}, |
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276 {input:"g", tag:"mi", output:"g", tex:null, ttype:UNARY, func:true}, |
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277 |
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278 //standard functions |
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279 {input:"lim", tag:"mo", output:"lim", tex:null, ttype:UNDEROVER}, |
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280 {input:"Lim", tag:"mo", output:"Lim", tex:null, ttype:UNDEROVER}, |
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281 {input:"sin", tag:"mo", output:"sin", tex:null, ttype:UNARY, func:true}, |
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282 {input:"cos", tag:"mo", output:"cos", tex:null, ttype:UNARY, func:true}, |
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283 {input:"tan", tag:"mo", output:"tan", tex:null, ttype:UNARY, func:true}, |
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284 {input:"sinh", tag:"mo", output:"sinh", tex:null, ttype:UNARY, func:true}, |
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285 {input:"cosh", tag:"mo", output:"cosh", tex:null, ttype:UNARY, func:true}, |
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286 {input:"tanh", tag:"mo", output:"tanh", tex:null, ttype:UNARY, func:true}, |
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287 {input:"cot", tag:"mo", output:"cot", tex:null, ttype:UNARY, func:true}, |
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288 {input:"sec", tag:"mo", output:"sec", tex:null, ttype:UNARY, func:true}, |
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289 {input:"csc", tag:"mo", output:"csc", tex:null, ttype:UNARY, func:true}, |
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290 {input:"log", tag:"mo", output:"log", tex:null, ttype:UNARY, func:true}, |
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291 {input:"ln", tag:"mo", output:"ln", tex:null, ttype:UNARY, func:true}, |
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292 {input:"det", tag:"mo", output:"det", tex:null, ttype:UNARY, func:true}, |
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293 {input:"dim", tag:"mo", output:"dim", tex:null, ttype:CONST}, |
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294 {input:"mod", tag:"mo", output:"mod", tex:null, ttype:CONST}, |
|
295 {input:"gcd", tag:"mo", output:"gcd", tex:null, ttype:UNARY, func:true}, |
|
296 {input:"lcm", tag:"mo", output:"lcm", tex:null, ttype:UNARY, func:true}, |
|
297 {input:"lub", tag:"mo", output:"lub", tex:null, ttype:CONST}, |
|
298 {input:"glb", tag:"mo", output:"glb", tex:null, ttype:CONST}, |
|
299 {input:"min", tag:"mo", output:"min", tex:null, ttype:UNDEROVER}, |
|
300 {input:"max", tag:"mo", output:"max", tex:null, ttype:UNDEROVER}, |
|
301 |
|
302 //arrows |
|
303 {input:"uarr", tag:"mo", output:"\u2191", tex:"uparrow", ttype:CONST}, |
|
304 {input:"darr", tag:"mo", output:"\u2193", tex:"downarrow", ttype:CONST}, |
|
305 {input:"rarr", tag:"mo", output:"\u2192", tex:"rightarrow", ttype:CONST}, |
|
306 {input:"->", tag:"mo", output:"\u2192", tex:"to", ttype:CONST}, |
|
307 {input:"|->", tag:"mo", output:"\u21A6", tex:"mapsto", ttype:CONST}, |
|
308 {input:"larr", tag:"mo", output:"\u2190", tex:"leftarrow", ttype:CONST}, |
|
309 {input:"harr", tag:"mo", output:"\u2194", tex:"leftrightarrow", ttype:CONST}, |
|
310 {input:"rArr", tag:"mo", output:"\u21D2", tex:"Rightarrow", ttype:CONST}, |
|
311 {input:"lArr", tag:"mo", output:"\u21D0", tex:"Leftarrow", ttype:CONST}, |
|
312 {input:"hArr", tag:"mo", output:"\u21D4", tex:"Leftrightarrow", ttype:CONST}, |
|
313 |
|
314 //commands with argument |
|
315 AMsqrt, AMroot, AMfrac, AMdiv, AMover, AMsub, AMsup, |
|
316 {input:"hat", tag:"mover", output:"\u005E", tex:null, ttype:UNARY, acc:true}, |
|
317 {input:"bar", tag:"mover", output:"\u00AF", tex:"overline", ttype:UNARY, acc:true}, |
|
318 {input:"vec", tag:"mover", output:"\u2192", tex:null, ttype:UNARY, acc:true}, |
|
319 {input:"dot", tag:"mover", output:".", tex:null, ttype:UNARY, acc:true}, |
|
320 {input:"ddot", tag:"mover", output:"..", tex:null, ttype:UNARY, acc:true}, |
|
321 {input:"ul", tag:"munder", output:"\u0332", tex:"underline", ttype:UNARY, acc:true}, |
|
322 AMtext, AMmbox, AMquote, |
|
323 {input:"bb", tag:"mstyle", atname:"fontweight", atval:"bold", output:"bb", tex:null, ttype:UNARY}, |
|
324 {input:"mathbf", tag:"mstyle", atname:"fontweight", atval:"bold", output:"mathbf", tex:null, ttype:UNARY}, |
|
325 {input:"sf", tag:"mstyle", atname:"fontfamily", atval:"sans-serif", output:"sf", tex:null, ttype:UNARY}, |
|
326 {input:"mathsf", tag:"mstyle", atname:"fontfamily", atval:"sans-serif", output:"mathsf", tex:null, ttype:UNARY}, |
|
327 {input:"bbb", tag:"mstyle", atname:"mathvariant", atval:"double-struck", output:"bbb", tex:null, ttype:UNARY, codes:AMbbb}, |
|
328 {input:"mathbb", tag:"mstyle", atname:"mathvariant", atval:"double-struck", output:"mathbb", tex:null, ttype:UNARY, codes:AMbbb}, |
|
329 {input:"cc", tag:"mstyle", atname:"mathvariant", atval:"script", output:"cc", tex:null, ttype:UNARY, codes:AMcal}, |
|
330 {input:"mathcal", tag:"mstyle", atname:"mathvariant", atval:"script", output:"mathcal", tex:null, ttype:UNARY, codes:AMcal}, |
|
331 {input:"tt", tag:"mstyle", atname:"fontfamily", atval:"monospace", output:"tt", tex:null, ttype:UNARY}, |
|
332 {input:"mathtt", tag:"mstyle", atname:"fontfamily", atval:"monospace", output:"mathtt", tex:null, ttype:UNARY}, |
|
333 {input:"fr", tag:"mstyle", atname:"mathvariant", atval:"fraktur", output:"fr", tex:null, ttype:UNARY, codes:AMfrk}, |
|
334 {input:"mathfrak", tag:"mstyle", atname:"mathvariant", atval:"fraktur", output:"mathfrak", tex:null, ttype:UNARY, codes:AMfrk} |
|
335 ]; |
|
336 |
|
337 function compareNames(s1,s2) { |
|
338 if (s1.input > s2.input) return 1 |
|
339 else return -1; |
|
340 } |
|
341 |
|
342 var AMnames = []; //list of input symbols |
|
343 |
|
344 function AMinitSymbols() { |
|
345 var texsymbols = [], i; |
|
346 for (i=0; i<AMsymbols.length; i++) |
|
347 if (AMsymbols[i].tex) |
|
348 texsymbols[texsymbols.length] = {input:AMsymbols[i].tex, |
|
349 tag:AMsymbols[i].tag, output:AMsymbols[i].output, ttype:AMsymbols[i].ttype}; |
|
350 AMsymbols = AMsymbols.concat(texsymbols); |
|
351 AMsymbols.sort(compareNames); |
|
352 for (i=0; i<AMsymbols.length; i++) AMnames[i] = AMsymbols[i].input; |
|
353 } |
|
354 |
|
355 var AMmathml = "http://www.w3.org/1998/Math/MathML"; |
|
356 |
|
357 function AMcreateElementMathML(t) { |
|
358 if (isIE) return document.createElement("m:"+t); |
|
359 else return document.createElementNS(AMmathml,t); |
|
360 } |
|
361 |
|
362 function AMcreateMmlNode(t,frag) { |
|
363 // var node = AMcreateElementMathML(name); |
|
364 if (isIE) var node = document.createElement("m:"+t); |
|
365 else var node = document.createElementNS(AMmathml,t); |
|
366 node.appendChild(frag); |
|
367 return node; |
|
368 } |
|
369 |
|
370 function define(oldstr,newstr) { |
|
371 AMsymbols = AMsymbols.concat([{input:oldstr, tag:"mo", output:newstr, |
|
372 tex:null, ttype:DEFINITION}]); |
|
373 AMsymbols.sort(compareNames); |
|
374 for (i=0; i<AMsymbols.length; i++) AMnames[i] = AMsymbols[i].input; |
|
375 } |
|
376 |
|
377 function AMremoveCharsAndBlanks(str,n) { |
|
378 //remove n characters and any following blanks |
|
379 var st; |
|
380 if (str.charAt(n)=="\\" && str.charAt(n+1)!="\\" && str.charAt(n+1)!=" ") |
|
381 st = str.slice(n+1); |
|
382 else st = str.slice(n); |
|
383 for (var i=0; i<st.length && st.charCodeAt(i)<=32; i=i+1); |
|
384 return st.slice(i); |
|
385 } |
|
386 |
|
387 function AMposition(arr, str, n) { |
|
388 // return position >=n where str appears or would be inserted |
|
389 // assumes arr is sorted |
|
390 if (n==0) { |
|
391 var h,m; |
|
392 n = -1; |
|
393 h = arr.length; |
|
394 while (n+1<h) { |
|
395 m = (n+h) >> 1; |
|
396 if (arr[m]<str) n = m; else h = m; |
|
397 } |
|
398 return h; |
|
399 } else |
|
400 for (var i=n; i<arr.length && arr[i]<str; i++); |
|
401 return i; // i=arr.length || arr[i]>=str |
|
402 } |
|
403 |
|
404 function AMgetSymbol(str) { |
|
405 //return maximal initial substring of str that appears in names |
|
406 //return null if there is none |
|
407 var k = 0; //new pos |
|
408 var j = 0; //old pos |
|
409 var mk; //match pos |
|
410 var st; |
|
411 var tagst; |
|
412 var match = ""; |
|
413 var more = true; |
|
414 for (var i=1; i<=str.length && more; i++) { |
|
415 st = str.slice(0,i); //initial substring of length i |
|
416 j = k; |
|
417 k = AMposition(AMnames, st, j); |
|
418 if (k<AMnames.length && str.slice(0,AMnames[k].length)==AMnames[k]){ |
|
419 match = AMnames[k]; |
|
420 mk = k; |
|
421 i = match.length; |
|
422 } |
|
423 more = k<AMnames.length && str.slice(0,AMnames[k].length)>=AMnames[k]; |
|
424 } |
|
425 AMpreviousSymbol=AMcurrentSymbol; |
|
426 if (match!=""){ |
|
427 AMcurrentSymbol=AMsymbols[mk].ttype; |
|
428 return AMsymbols[mk]; |
|
429 } |
|
430 // if str[0] is a digit or - return maxsubstring of digits.digits |
|
431 AMcurrentSymbol=CONST; |
|
432 k = 1; |
|
433 st = str.slice(0,1); |
|
434 var integ = true; |
|
435 while ("0"<=st && st<="9" && k<=str.length) { |
|
436 st = str.slice(k,k+1); |
|
437 k++; |
|
438 } |
|
439 if (st == decimalsign) { |
|
440 st = str.slice(k,k+1); |
|
441 if ("0"<=st && st<="9") { |
|
442 integ = false; |
|
443 k++; |
|
444 while ("0"<=st && st<="9" && k<=str.length) { |
|
445 st = str.slice(k,k+1); |
|
446 k++; |
|
447 } |
|
448 } |
|
449 } |
|
450 if ((integ && k>1) || k>2) { |
|
451 st = str.slice(0,k-1); |
|
452 tagst = "mn"; |
|
453 } else { |
|
454 k = 2; |
|
455 st = str.slice(0,1); //take 1 character |
|
456 tagst = (("A">st || st>"Z") && ("a">st || st>"z")?"mo":"mi"); |
|
457 } |
|
458 if (st=="-" && AMpreviousSymbol==INFIX) { |
|
459 AMcurrentSymbol = INFIX; //trick "/" into recognizing "-" on second parse |
|
460 return {input:st, tag:tagst, output:st, ttype:UNARY, func:true}; |
|
461 } |
|
462 return {input:st, tag:tagst, output:st, ttype:CONST}; |
|
463 } |
|
464 |
|
465 function AMremoveBrackets(node) { |
|
466 var st; |
|
467 if (node.nodeName=="mrow") { |
|
468 st = node.firstChild.firstChild.nodeValue; |
|
469 if (st=="(" || st=="[" || st=="{") node.removeChild(node.firstChild); |
|
470 } |
|
471 if (node.nodeName=="mrow") { |
|
472 st = node.lastChild.firstChild.nodeValue; |
|
473 if (st==")" || st=="]" || st=="}") node.removeChild(node.lastChild); |
|
474 } |
|
475 } |
|
476 |
|
477 /*Parsing ASCII math expressions with the following grammar |
|
478 v ::= [A-Za-z] | greek letters | numbers | other constant symbols |
|
479 u ::= sqrt | text | bb | other unary symbols for font commands |
|
480 b ::= frac | root | stackrel binary symbols |
|
481 l ::= ( | [ | { | (: | {: left brackets |
|
482 r ::= ) | ] | } | :) | :} right brackets |
|
483 S ::= v | lEr | uS | bSS Simple expression |
|
484 I ::= S_S | S^S | S_S^S | S Intermediate expression |
|
485 E ::= IE | I/I Expression |
|
486 Each terminal symbol is translated into a corresponding mathml node.*/ |
|
487 |
|
488 var AMnestingDepth,AMpreviousSymbol,AMcurrentSymbol; |
|
489 |
|
490 function AMparseSexpr(str) { //parses str and returns [node,tailstr] |
|
491 var symbol, node, result, i, st,// rightvert = false, |
|
492 newFrag = document.createDocumentFragment(); |
|
493 str = AMremoveCharsAndBlanks(str,0); |
|
494 symbol = AMgetSymbol(str); //either a token or a bracket or empty |
|
495 if (symbol == null || symbol.ttype == RIGHTBRACKET && AMnestingDepth > 0) { |
|
496 return [null,str]; |
|
497 } |
|
498 if (symbol.ttype == DEFINITION) { |
|
499 str = symbol.output+AMremoveCharsAndBlanks(str,symbol.input.length); |
|
500 symbol = AMgetSymbol(str); |
|
501 } |
|
502 switch (symbol.ttype) { |
|
503 case UNDEROVER: |
|
504 case CONST: |
|
505 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
506 return [AMcreateMmlNode(symbol.tag, //its a constant |
|
507 document.createTextNode(symbol.output)),str]; |
|
508 case LEFTBRACKET: //read (expr+) |
|
509 AMnestingDepth++; |
|
510 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
511 result = AMparseExpr(str,true); |
|
512 AMnestingDepth--; |
|
513 if (typeof symbol.invisible == "boolean" && symbol.invisible) |
|
514 node = AMcreateMmlNode("mrow",result[0]); |
|
515 else { |
|
516 node = AMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
517 node = AMcreateMmlNode("mrow",node); |
|
518 node.appendChild(result[0]); |
|
519 } |
|
520 return [node,result[1]]; |
|
521 case TEXT: |
|
522 if (symbol!=AMquote) str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
523 if (str.charAt(0)=="{") i=str.indexOf("}"); |
|
524 else if (str.charAt(0)=="(") i=str.indexOf(")"); |
|
525 else if (str.charAt(0)=="[") i=str.indexOf("]"); |
|
526 else if (symbol==AMquote) i=str.slice(1).indexOf("\"")+1; |
|
527 else i = 0; |
|
528 if (i==-1) i = str.length; |
|
529 st = str.slice(1,i); |
|
530 if (st.charAt(0) == " ") { |
|
531 node = AMcreateElementMathML("mspace"); |
|
532 node.setAttribute("width","1ex"); |
|
533 newFrag.appendChild(node); |
|
534 } |
|
535 newFrag.appendChild( |
|
536 AMcreateMmlNode(symbol.tag,document.createTextNode(st))); |
|
537 if (st.charAt(st.length-1) == " ") { |
|
538 node = AMcreateElementMathML("mspace"); |
|
539 node.setAttribute("width","1ex"); |
|
540 newFrag.appendChild(node); |
|
541 } |
|
542 str = AMremoveCharsAndBlanks(str,i+1); |
|
543 return [AMcreateMmlNode("mrow",newFrag),str]; |
|
544 case UNARY: |
|
545 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
546 result = AMparseSexpr(str); |
|
547 if (result[0]==null) return [AMcreateMmlNode(symbol.tag, |
|
548 document.createTextNode(symbol.output)),str]; |
|
549 if (typeof symbol.func == "boolean" && symbol.func) { // functions hack |
|
550 st = str.charAt(0); |
|
551 if (st=="^" || st=="_" || st=="/" || st=="|" || st==",") { |
|
552 return [AMcreateMmlNode(symbol.tag, |
|
553 document.createTextNode(symbol.output)),str]; |
|
554 } else { |
|
555 node = AMcreateMmlNode("mrow", |
|
556 AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output))); |
|
557 node.appendChild(result[0]); |
|
558 return [node,result[1]]; |
|
559 } |
|
560 } |
|
561 AMremoveBrackets(result[0]); |
|
562 if (symbol.input == "sqrt") { // sqrt |
|
563 return [AMcreateMmlNode(symbol.tag,result[0]),result[1]]; |
|
564 } else if (typeof symbol.acc == "boolean" && symbol.acc) { // accent |
|
565 node = AMcreateMmlNode(symbol.tag,result[0]); |
|
566 node.appendChild(AMcreateMmlNode("mo",document.createTextNode(symbol.output))); |
|
567 return [node,result[1]]; |
|
568 } else { // font change command |
|
569 if (!isIE && typeof symbol.codes != "undefined") { |
|
570 for (i=0; i<result[0].childNodes.length; i++) |
|
571 if (result[0].childNodes[i].nodeName=="mi" || result[0].nodeName=="mi") { |
|
572 st = (result[0].nodeName=="mi"?result[0].firstChild.nodeValue: |
|
573 result[0].childNodes[i].firstChild.nodeValue); |
|
574 var newst = []; |
|
575 for (var j=0; j<st.length; j++) |
|
576 if (st.charCodeAt(j)>64 && st.charCodeAt(j)<91) newst = newst + |
|
577 String.fromCharCode(symbol.codes[st.charCodeAt(j)-65]); |
|
578 else newst = newst + st.charAt(j); |
|
579 if (result[0].nodeName=="mi") |
|
580 result[0]=AMcreateElementMathML("mo"). |
|
581 appendChild(document.createTextNode(newst)); |
|
582 else result[0].replaceChild(AMcreateElementMathML("mo"). |
|
583 appendChild(document.createTextNode(newst)),result[0].childNodes[i]); |
|
584 } |
|
585 } |
|
586 node = AMcreateMmlNode(symbol.tag,result[0]); |
|
587 node.setAttribute(symbol.atname,symbol.atval); |
|
588 return [node,result[1]]; |
|
589 } |
|
590 case BINARY: |
|
591 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
592 result = AMparseSexpr(str); |
|
593 if (result[0]==null) return [AMcreateMmlNode("mo", |
|
594 document.createTextNode(symbol.input)),str]; |
|
595 AMremoveBrackets(result[0]); |
|
596 var result2 = AMparseSexpr(result[1]); |
|
597 if (result2[0]==null) return [AMcreateMmlNode("mo", |
|
598 document.createTextNode(symbol.input)),str]; |
|
599 AMremoveBrackets(result2[0]); |
|
600 if (symbol.input=="root" || symbol.input=="stackrel") |
|
601 newFrag.appendChild(result2[0]); |
|
602 newFrag.appendChild(result[0]); |
|
603 if (symbol.input=="frac") newFrag.appendChild(result2[0]); |
|
604 return [AMcreateMmlNode(symbol.tag,newFrag),result2[1]]; |
|
605 case INFIX: |
|
606 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
607 return [AMcreateMmlNode("mo",document.createTextNode(symbol.output)),str]; |
|
608 case SPACE: |
|
609 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
610 node = AMcreateElementMathML("mspace"); |
|
611 node.setAttribute("width","1ex"); |
|
612 newFrag.appendChild(node); |
|
613 newFrag.appendChild( |
|
614 AMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output))); |
|
615 node = AMcreateElementMathML("mspace"); |
|
616 node.setAttribute("width","1ex"); |
|
617 newFrag.appendChild(node); |
|
618 return [AMcreateMmlNode("mrow",newFrag),str]; |
|
619 case LEFTRIGHT: |
|
620 // if (rightvert) return [null,str]; else rightvert = true; |
|
621 AMnestingDepth++; |
|
622 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
623 result = AMparseExpr(str,false); |
|
624 AMnestingDepth--; |
|
625 var st = ""; |
|
626 if (result[0].lastChild!=null) |
|
627 st = result[0].lastChild.firstChild.nodeValue; |
|
628 if (st == "|") { // its an absolute value subterm |
|
629 node = AMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
630 node = AMcreateMmlNode("mrow",node); |
|
631 node.appendChild(result[0]); |
|
632 return [node,result[1]]; |
|
633 } else { // the "|" is a \mid |
|
634 node = AMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
635 node = AMcreateMmlNode("mrow",node); |
|
636 return [node,str]; |
|
637 } |
|
638 default: |
|
639 //alert("default"); |
|
640 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
641 return [AMcreateMmlNode(symbol.tag, //its a constant |
|
642 document.createTextNode(symbol.output)),str]; |
|
643 } |
|
644 } |
|
645 |
|
646 function AMparseIexpr(str) { |
|
647 var symbol, sym1, sym2, node, result, underover; |
|
648 str = AMremoveCharsAndBlanks(str,0); |
|
649 sym1 = AMgetSymbol(str); |
|
650 result = AMparseSexpr(str); |
|
651 node = result[0]; |
|
652 str = result[1]; |
|
653 symbol = AMgetSymbol(str); |
|
654 if (symbol.ttype == INFIX && symbol.input != "/") { |
|
655 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
656 // if (symbol.input == "/") result = AMparseIexpr(str); else ... |
|
657 result = AMparseSexpr(str); |
|
658 if (result[0] == null) // show box in place of missing argument |
|
659 result[0] = AMcreateMmlNode("mo",document.createTextNode("\u25A1")); |
|
660 else AMremoveBrackets(result[0]); |
|
661 str = result[1]; |
|
662 // if (symbol.input == "/") AMremoveBrackets(node); |
|
663 if (symbol.input == "_") { |
|
664 sym2 = AMgetSymbol(str); |
|
665 underover = (sym1.ttype == UNDEROVER); |
|
666 if (sym2.input == "^") { |
|
667 str = AMremoveCharsAndBlanks(str,sym2.input.length); |
|
668 var res2 = AMparseSexpr(str); |
|
669 AMremoveBrackets(res2[0]); |
|
670 str = res2[1]; |
|
671 node = AMcreateMmlNode((underover?"munderover":"msubsup"),node); |
|
672 node.appendChild(result[0]); |
|
673 node.appendChild(res2[0]); |
|
674 node = AMcreateMmlNode("mrow",node); // so sum does not stretch |
|
675 } else { |
|
676 node = AMcreateMmlNode((underover?"munder":"msub"),node); |
|
677 node.appendChild(result[0]); |
|
678 } |
|
679 } else { |
|
680 node = AMcreateMmlNode(symbol.tag,node); |
|
681 node.appendChild(result[0]); |
|
682 } |
|
683 } |
|
684 return [node,str]; |
|
685 } |
|
686 |
|
687 function AMparseExpr(str,rightbracket) { |
|
688 var symbol, node, result, i, nodeList = [], |
|
689 newFrag = document.createDocumentFragment(); |
|
690 do { |
|
691 str = AMremoveCharsAndBlanks(str,0); |
|
692 result = AMparseIexpr(str); |
|
693 node = result[0]; |
|
694 str = result[1]; |
|
695 symbol = AMgetSymbol(str); |
|
696 if (symbol.ttype == INFIX && symbol.input == "/") { |
|
697 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
698 result = AMparseIexpr(str); |
|
699 if (result[0] == null) // show box in place of missing argument |
|
700 result[0] = AMcreateMmlNode("mo",document.createTextNode("\u25A1")); |
|
701 else AMremoveBrackets(result[0]); |
|
702 str = result[1]; |
|
703 AMremoveBrackets(node); |
|
704 node = AMcreateMmlNode(symbol.tag,node); |
|
705 node.appendChild(result[0]); |
|
706 newFrag.appendChild(node); |
|
707 symbol = AMgetSymbol(str); |
|
708 } |
|
709 else if (node!=undefined) newFrag.appendChild(node); |
|
710 } while ((symbol.ttype != RIGHTBRACKET && |
|
711 (symbol.ttype != LEFTRIGHT || rightbracket) |
|
712 || AMnestingDepth == 0) && symbol!=null && symbol.output!=""); |
|
713 if (symbol.ttype == RIGHTBRACKET || symbol.ttype == LEFTRIGHT) { |
|
714 // if (AMnestingDepth > 0) AMnestingDepth--; |
|
715 var len = newFrag.childNodes.length; |
|
716 if (len>0 && newFrag.childNodes[len-1].nodeName == "mrow" && len>1 && |
|
717 newFrag.childNodes[len-2].nodeName == "mo" && |
|
718 newFrag.childNodes[len-2].firstChild.nodeValue == ",") { //matrix |
|
719 var right = newFrag.childNodes[len-1].lastChild.firstChild.nodeValue; |
|
720 if (right==")" || right=="]") { |
|
721 var left = newFrag.childNodes[len-1].firstChild.firstChild.nodeValue; |
|
722 if (left=="(" && right==")" && symbol.output != "}" || |
|
723 left=="[" && right=="]") { |
|
724 var pos = []; // positions of commas |
|
725 var matrix = true; |
|
726 var m = newFrag.childNodes.length; |
|
727 for (i=0; matrix && i<m; i=i+2) { |
|
728 pos[i] = []; |
|
729 node = newFrag.childNodes[i]; |
|
730 if (matrix) matrix = node.nodeName=="mrow" && |
|
731 (i==m-1 || node.nextSibling.nodeName=="mo" && |
|
732 node.nextSibling.firstChild.nodeValue==",")&& |
|
733 node.firstChild.firstChild.nodeValue==left && |
|
734 node.lastChild.firstChild.nodeValue==right; |
|
735 if (matrix) |
|
736 for (var j=0; j<node.childNodes.length; j++) |
|
737 if (node.childNodes[j].firstChild.nodeValue==",") |
|
738 pos[i][pos[i].length]=j; |
|
739 if (matrix && i>1) matrix = pos[i].length == pos[i-2].length; |
|
740 } |
|
741 if (matrix) { |
|
742 var row, frag, n, k, table = document.createDocumentFragment(); |
|
743 for (i=0; i<m; i=i+2) { |
|
744 row = document.createDocumentFragment(); |
|
745 frag = document.createDocumentFragment(); |
|
746 node = newFrag.firstChild; // <mrow>(-,-,...,-,-)</mrow> |
|
747 n = node.childNodes.length; |
|
748 k = 0; |
|
749 node.removeChild(node.firstChild); //remove ( |
|
750 for (j=1; j<n-1; j++) { |
|
751 if (typeof pos[i][k] != "undefined" && j==pos[i][k]){ |
|
752 node.removeChild(node.firstChild); //remove , |
|
753 row.appendChild(AMcreateMmlNode("mtd",frag)); |
|
754 k++; |
|
755 } else frag.appendChild(node.firstChild); |
|
756 } |
|
757 row.appendChild(AMcreateMmlNode("mtd",frag)); |
|
758 if (newFrag.childNodes.length>2) { |
|
759 newFrag.removeChild(newFrag.firstChild); //remove <mrow>)</mrow> |
|
760 newFrag.removeChild(newFrag.firstChild); //remove <mo>,</mo> |
|
761 } |
|
762 table.appendChild(AMcreateMmlNode("mtr",row)); |
|
763 } |
|
764 node = AMcreateMmlNode("mtable",table); |
|
765 if (typeof symbol.invisible == "boolean" && symbol.invisible) node.setAttribute("columnalign","left"); |
|
766 newFrag.replaceChild(node,newFrag.firstChild); |
|
767 } |
|
768 } |
|
769 } |
|
770 } |
|
771 str = AMremoveCharsAndBlanks(str,symbol.input.length); |
|
772 if (typeof symbol.invisible != "boolean" || !symbol.invisible) { |
|
773 node = AMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
774 newFrag.appendChild(node); |
|
775 } |
|
776 } |
|
777 return [newFrag,str]; |
|
778 } |
|
779 |
|
780 function AMparseMath(str) { |
|
781 var result, node = AMcreateElementMathML("mstyle"); |
|
782 if (mathcolor != "") node.setAttribute("mathcolor",mathcolor); |
|
783 if (displaystyle) node.setAttribute("displaystyle","true"); |
|
784 if (mathfontfamily != "") node.setAttribute("fontfamily",mathfontfamily); |
|
785 AMnestingDepth = 0; |
|
786 node.appendChild(AMparseExpr(str.replace(/^\s+/g,""),false)[0]); |
|
787 node = AMcreateMmlNode("math",node); |
|
788 if (showasciiformulaonhover) //fixed by djhsu so newline |
|
789 node.setAttribute("title",str.replace(/\s+/g," "));//does not show in Gecko |
|
790 var fnode = AMcreateElementXHTML("span"); |
|
791 fnode.style.fontSize = mathfontsize; |
|
792 if (mathfontfamily != "") fnode.style.fontFamily = mathfontfamily; |
|
793 fnode.appendChild(node); |
|
794 return fnode; |
|
795 } |
|
796 |
|
797 function AMstrarr2docFrag(arr, linebreaks) { |
|
798 var newFrag=document.createDocumentFragment(); |
|
799 var expr = false; |
|
800 for (var i=0; i<arr.length; i++) { |
|
801 if (expr) newFrag.appendChild(AMparseMath(arr[i])); |
|
802 else { |
|
803 var arri = (linebreaks ? arr[i].split("\n\n") : [arr[i]]); |
|
804 newFrag.appendChild(AMcreateElementXHTML("span"). |
|
805 appendChild(document.createTextNode(arri[0]))); |
|
806 for (var j=1; j<arri.length; j++) { |
|
807 newFrag.appendChild(AMcreateElementXHTML("p")); |
|
808 newFrag.appendChild(AMcreateElementXHTML("span"). |
|
809 appendChild(document.createTextNode(arri[j]))); |
|
810 } |
|
811 } |
|
812 expr = !expr; |
|
813 } |
|
814 return newFrag; |
|
815 } |
|
816 |
|
817 function AMautomathrec(str) { |
|
818 //formula is a space (or start of str) followed by a maximal sequence of *two* or more tokens, possibly separated by runs of digits and/or space. |
|
819 //tokens are single letters (except a, A, I) and ASCIIMathML tokens |
|
820 var texcommand = "\\\\[a-zA-Z]+|\\\\\\s|"; |
|
821 var ambigAMtoken = "\\b(?:oo|lim|ln|int|oint|del|grad|aleph|prod|prop|sinh|cosh|tanh|cos|sec|pi|tt|fr|sf|sube|supe|sub|sup|det|mod|gcd|lcm|min|max|vec|ddot|ul|chi|eta|nu|mu)(?![a-z])|"; |
|
822 var englishAMtoken = "\\b(?:sum|ox|log|sin|tan|dim|hat|bar|dot)(?![a-z])|"; |
|
823 var secondenglishAMtoken = "|\\bI\\b|\\bin\\b|\\btext\\b"; // took if and or not out |
|
824 var simpleAMtoken = "NN|ZZ|QQ|RR|CC|TT|AA|EE|sqrt|dx|dy|dz|dt|xx|vv|uu|nn|bb|cc|csc|cot|alpha|beta|delta|Delta|epsilon|gamma|Gamma|kappa|lambda|Lambda|omega|phi|Phi|Pi|psi|Psi|rho|sigma|Sigma|tau|theta|Theta|xi|Xi|zeta"; // uuu nnn? |
|
825 var letter = "[a-zA-HJ-Z](?=(?:[^a-zA-Z]|$|"+ambigAMtoken+englishAMtoken+simpleAMtoken+"))|"; |
|
826 var token = letter+texcommand+"\\d+|[-()[\\]{}+=*&^_%@/<>,\\|!:;'~]|\\.(?!(?:\x20|$))|"+ambigAMtoken+englishAMtoken+simpleAMtoken; |
|
827 var re = new RegExp("(^|\\s)((("+token+")\\s?)(("+token+secondenglishAMtoken+")\\s?)+)([,.?]?(?=\\s|$))","g"); |
|
828 str = str.replace(re," `$2`$7"); |
|
829 var arr = str.split(AMdelimiter1); |
|
830 var re1 = new RegExp("(^|\\s)([b-zB-HJ-Z+*<>]|"+texcommand+ambigAMtoken+simpleAMtoken+")(\\s|\\n|$)","g"); |
|
831 var re2 = new RegExp("(^|\\s)([a-z]|"+texcommand+ambigAMtoken+simpleAMtoken+")([,.])","g"); // removed |\d+ for now |
|
832 for (i=0; i<arr.length; i++) //single nonenglish tokens |
|
833 if (i%2==0) { |
|
834 arr[i] = arr[i].replace(re1," `$2`$3"); |
|
835 arr[i] = arr[i].replace(re2," `$2`$3"); |
|
836 arr[i] = arr[i].replace(/([{}[\]])/,"`$1`"); |
|
837 } |
|
838 str = arr.join(AMdelimiter1); |
|
839 str = str.replace(/(\([a-zA-Z]{2,}.*?)\)`/g,"$1`)"); //fix parentheses |
|
840 str = str.replace(/`(\((a\s|in\s))(.*?[a-zA-Z]{2,}\))/g,"$1`$3"); //fix parentheses |
|
841 str = str.replace(/\sin`/g,"` in"); |
|
842 str = str.replace(/`(\(\w\)[,.]?(\s|\n|$))/g,"$1`"); |
|
843 str = str.replace(/`([0-9.]+|e.g)`(\\.)/gi,"$1$2"); |
|
844 str = str.replace(/`([0-9.]:)`/g,"$1"); |
|
845 return str; |
|
846 } |
|
847 |
|
848 function AMprocessNodeR(n, linebreaks) { |
|
849 var mtch, str, arr, frg, i; |
|
850 if (n.childNodes.length == 0) { |
|
851 if ((n.nodeType!=8 || linebreaks) && |
|
852 n.parentNode.nodeName!="form" && n.parentNode.nodeName!="FORM" && |
|
853 n.parentNode.nodeName!="textarea" && n.parentNode.nodeName!="TEXTAREA" && |
|
854 n.parentNode.nodeName!="pre" && n.parentNode.nodeName!="PRE") { |
|
855 str = n.nodeValue; |
|
856 if (!(str == null)) { |
|
857 str = str.replace(/\r\n\r\n/g,"\n\n"); |
|
858 str = str.replace(/\x20+/g," "); |
|
859 str = str.replace(/\s*\r\n/g," "); |
|
860 mtch = false; |
|
861 str = str.replace(new RegExp(AMescape1, "g"), |
|
862 function(){mtch = true; return "AMescape1"}); |
|
863 str = str.replace(/\\?end{?a?math}?/i, |
|
864 function(){automathrecognize = false; mtch = true; return ""}); |
|
865 str = str.replace(/amath|\\begin{a?math}/i, |
|
866 function(){automathrecognize = true; mtch = true; return ""}); |
|
867 arr = str.split(AMdelimiter1); |
|
868 if (automathrecognize) |
|
869 for (i=0; i<arr.length; i++) |
|
870 if (i%2==0) arr[i] = AMautomathrec(arr[i]); |
|
871 str = arr.join(AMdelimiter1); |
|
872 arr = str.split(AMdelimiter1); |
|
873 for (i=0; i<arr.length; i++) // this is a problem ************ |
|
874 arr[i]=arr[i].replace(/AMescape1/g,AMdelimiter1); |
|
875 if (arr.length>1 || mtch) { |
|
876 if (checkForMathML) { |
|
877 checkForMathML = false; |
|
878 var nd = AMisMathMLavailable(); |
|
879 AMnoMathML = nd != null; |
|
880 if (AMnoMathML && notifyIfNoMathML) |
|
881 if (alertIfNoMathML) |
|
882 alert("To view the ASCIIMathML notation use Internet Explorer 6 +\nMathPlayer (free from www.dessci.com)\n\ |
|
883 or Firefox/Mozilla/Netscape"); |
|
884 else AMbody.insertBefore(nd,AMbody.childNodes[0]); |
|
885 } |
|
886 if (!AMnoMathML) { |
|
887 frg = AMstrarr2docFrag(arr,n.nodeType==8); |
|
888 var len = frg.childNodes.length; |
|
889 n.parentNode.replaceChild(frg,n); |
|
890 return len-1; |
|
891 } else return 0; |
|
892 } |
|
893 } |
|
894 } else return 0; |
|
895 } else if (n.nodeName!="math") { |
|
896 for (i=0; i<n.childNodes.length; i++) |
|
897 i += AMprocessNodeR(n.childNodes[i], linebreaks); |
|
898 } |
|
899 return 0; |
|
900 } |
|
901 |
|
902 function AMprocessNode(n, linebreaks, spanclassAM) { |
|
903 var frag,st; |
|
904 if (spanclassAM!=null) { |
|
905 frag = document.getElementsByTagName("span") |
|
906 for (var i=0;i<frag.length;i++) |
|
907 if (frag[i].className == "AM") |
|
908 AMprocessNodeR(frag[i],linebreaks); |
|
909 } else { |
|
910 try { |
|
911 st = n.innerHTML; // look for AMdelimiter on page |
|
912 } catch(err) {} |
|
913 if (st==null || /amath|\\begin{a?math}/i.test(st) || |
|
914 st.indexOf(AMdelimiter1+" ")!=-1 || st.slice(-1)==AMdelimiter1 || |
|
915 st.indexOf(AMdelimiter1+"<")!=-1 || st.indexOf(AMdelimiter1+"\n")!=-1) { |
|
916 AMprocessNodeR(n,linebreaks); |
|
917 } |
|
918 } |
|
919 if (isIE) { //needed to match size and font of formula to surrounding text |
|
920 frag = document.getElementsByTagName('math'); |
|
921 for (var i=0;i<frag.length;i++) frag[i].update() |
|
922 } |
|
923 } |
|
924 |
|
925 var AMbody; |
|
926 var AMnoMathML = false, AMtranslated = false; |
|
927 |
|
928 function translate(spanclassAM) { |
|
929 if (!AMtranslated) { // run this only once |
|
930 AMtranslated = true; |
|
931 AMbody = document.getElementsByTagName("body")[0]; |
|
932 var processN = document.getElementById(AMdocumentId); |
|
933 // var processN = getElementsByClass(AMbody,"div",AMdocumentClass); |
|
934 AMprocessNode((processN!=null?processN:AMbody), false, spanclassAM); |
|
935 } |
|
936 } |
|
937 |
|
938 AMinitSymbols(); |
|
939 |
|
940 /* |
|
941 LaTeXMathML.js |
|
942 ============== |
|
943 |
|
944 Version 1.1, July 20, 2007 (c) modifications by Peter Jipsen |
|
945 |
|
946 (changes: renamed global variables from AM... to LM... so that |
|
947 LaTeXMathML and ASCIIMathML can be used simultaneously) |
|
948 |
|
949 Previous header notice: |
|
950 This file (Version 1.0), is due to Douglas Woodall, June 2006. |
|
951 It contains JavaScript functions to convert (most simple) LaTeX |
|
952 math notation to Presentation MathML. It was obtained by |
|
953 downloading the file ASCIIMathML.js from |
|
954 http://www1.chapman.edu/~jipsen/mathml/asciimathdownload/ |
|
955 and modifying it so that it carries out ONLY those conversions |
|
956 that would be carried out in LaTeX. A description of the original |
|
957 file, with examples, can be found at |
|
958 www1.chapman.edu/~jipsen/mathml/asciimath.html |
|
959 ASCIIMathML: Math on the web for everyone |
|
960 |
|
961 Here is the header notice from the original file: |
|
962 |
|
963 ASCIIMathML.js |
|
964 ============== |
|
965 This file contains JavaScript functions to convert ASCII math notation |
|
966 to Presentation MathML. The conversion is done while the (X)HTML page |
|
967 loads, and should work with Firefox/Mozilla/Netscape 7+ and Internet |
|
968 Explorer 6+MathPlayer (http://www.dessci.com/en/products/mathplayer/). |
|
969 Just add the next line to your (X)HTML page with this file in the same folder: |
|
970 <script type="text/javascript" src="ASCIIMathML.js"></script> |
|
971 This is a convenient and inexpensive solution for authoring MathML. |
|
972 |
|
973 Version 1.4.7 Dec 15, 2005, (c) Peter Jipsen http://www.chapman.edu/~jipsen |
|
974 Latest version at http://www.chapman.edu/~jipsen/mathml/ASCIIMathML.js |
|
975 For changes see http://www.chapman.edu/~jipsen/mathml/asciimathchanges.txt |
|
976 If you use it on a webpage, please send the URL to jipsen@chapman.edu |
|
977 |
|
978 This program is free software; you can redistribute it and/or modify |
|
979 it under the terms of the GNU Lesser General Public License as published by |
|
980 the Free Software Foundation; either version 2.1 of the License, or (at |
|
981 your option) any later version. |
|
982 |
|
983 This program is distributed in the hope that it will be useful, |
|
984 but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
985 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
|
986 General Public License (at http://www.gnu.org/license/lgpl.html) |
|
987 for more details. |
|
988 |
|
989 LaTeXMathML.js (ctd) |
|
990 ============== |
|
991 |
|
992 Content between $...$ and $$...$$ is converted by this part of the file |
|
993 */ |
|
994 |
|
995 var LMcheckForMathML = true; // check if browser can display MathML |
|
996 var LMnotifyIfNoMathML = true; // display note if no MathML capability |
|
997 var LMalertIfNoMathML = false; // show alert box if no MathML capability |
|
998 var LMmathcolor = ""; // "" (to inherit) or change to another color |
|
999 var LMmathfontfamily = "serif"; // change to "" to inherit (works in IE) |
|
1000 // or another family (e.g. "arial") |
|
1001 var LMshowasciiformulaonhover = true; // helps students learn LaTeX |
|
1002 |
|
1003 // all further global variables start with "LM" |
|
1004 |
|
1005 function LMcreateElementXHTML(t) { |
|
1006 if (isIE) return document.createElement(t); |
|
1007 else return document.createElementNS("http://www.w3.org/1999/xhtml",t); |
|
1008 } |
|
1009 |
|
1010 function LMnoMathMLNote() { |
|
1011 var nd = LMcreateElementXHTML("h3"); |
|
1012 nd.setAttribute("align","center") |
|
1013 nd.appendChild(LMcreateElementXHTML("p")); |
|
1014 nd.appendChild(document.createTextNode("To view the ")); |
|
1015 var an = LMcreateElementXHTML("a"); |
|
1016 an.appendChild(document.createTextNode("LaTeXMathML")); |
|
1017 an.setAttribute("href","http://www.maths.nott.ac.uk/personal/drw/lm.html"); |
|
1018 nd.appendChild(an); |
|
1019 nd.appendChild(document.createTextNode(" notation use Internet Explorer 6+")); |
|
1020 an = LMcreateElementXHTML("a"); |
|
1021 an.appendChild(document.createTextNode("MathPlayer")); |
|
1022 an.setAttribute("href","http://www.dessci.com/en/products/mathplayer/download.htm"); |
|
1023 nd.appendChild(an); |
|
1024 nd.appendChild(document.createTextNode(" or Netscape/Mozilla/Firefox")); |
|
1025 nd.appendChild(LMcreateElementXHTML("p")); |
|
1026 return nd; |
|
1027 } |
|
1028 |
|
1029 function LMisMathMLavailable() { |
|
1030 if (navigator.appName.slice(0,8)=="Netscape") |
|
1031 if (navigator.appVersion.slice(0,1)>="5") return null; |
|
1032 else return LMnoMathMLNote(); |
|
1033 else if (navigator.appName.slice(0,9)=="Microsoft") |
|
1034 try { |
|
1035 var ActiveX = new ActiveXObject("MathPlayer.Factory.1"); |
|
1036 return null; |
|
1037 } catch (e) { |
|
1038 return LMnoMathMLNote(); |
|
1039 } |
|
1040 else return LMnoMathMLNote(); |
|
1041 } |
|
1042 |
|
1043 // character lists for Mozilla/Netscape fonts |
|
1044 var LMcal = [0xEF35,0x212C,0xEF36,0xEF37,0x2130,0x2131,0xEF38,0x210B,0x2110,0xEF39,0xEF3A,0x2112,0x2133,0xEF3B,0xEF3C,0xEF3D,0xEF3E,0x211B,0xEF3F,0xEF40,0xEF41,0xEF42,0xEF43,0xEF44,0xEF45,0xEF46]; |
|
1045 var LMfrk = [0xEF5D,0xEF5E,0x212D,0xEF5F,0xEF60,0xEF61,0xEF62,0x210C,0x2111,0xEF63,0xEF64,0xEF65,0xEF66,0xEF67,0xEF68,0xEF69,0xEF6A,0x211C,0xEF6B,0xEF6C,0xEF6D,0xEF6E,0xEF6F,0xEF70,0xEF71,0x2128]; |
|
1046 var LMbbb = [0xEF8C,0xEF8D,0x2102,0xEF8E,0xEF8F,0xEF90,0xEF91,0x210D,0xEF92,0xEF93,0xEF94,0xEF95,0xEF96,0x2115,0xEF97,0x2119,0x211A,0x211D,0xEF98,0xEF99,0xEF9A,0xEF9B,0xEF9C,0xEF9D,0xEF9E,0x2124]; |
|
1047 |
|
1048 //var CONST = 0, UNARY = 1, BINARY = 2, INFIX = 3, LEFTBRACKET = 4, |
|
1049 // RIGHTBRACKET = 5, SPACE = 6, UNDEROVER = 7, DEFINITION = 8, TEXT = 10, |
|
1050 var BIG = 11, LONG = 12, STRETCHY = 13, MATRIX = 14; // token types |
|
1051 |
|
1052 var LMsqrt = {input:"\\sqrt", tag:"msqrt", output:"sqrt", ttype:UNARY}, |
|
1053 LMroot = {input:"\\root", tag:"mroot", output:"root", ttype:BINARY}, |
|
1054 LMfrac = {input:"\\frac", tag:"mfrac", output:"/", ttype:BINARY}, |
|
1055 LMover = {input:"\\stackrel", tag:"mover", output:"stackrel", ttype:BINARY}, |
|
1056 LMatop = {input:"\\atop", tag:"mfrac", output:"", ttype:INFIX}, |
|
1057 LMchoose = {input:"\\choose", tag:"mfrac", output:"", ttype:INFIX}, |
|
1058 LMsub = {input:"_", tag:"msub", output:"_", ttype:INFIX}, |
|
1059 LMsup = {input:"^", tag:"msup", output:"^", ttype:INFIX}, |
|
1060 LMtext = {input:"\\mathrm", tag:"mtext", output:"text", ttype:TEXT}, |
|
1061 LMmbox = {input:"\\mbox", tag:"mtext", output:"mbox", ttype:TEXT}; |
|
1062 |
|
1063 // Commented out by DRW to prevent 1/2 turning into a 2-line fraction |
|
1064 // LMdiv = {input:"/", tag:"mfrac", output:"/", ttype:INFIX}, |
|
1065 // Commented out by DRW so that " prints literally in equations |
|
1066 // LMquote = {input:"\"", tag:"mtext", output:"mbox", ttype:TEXT}; |
|
1067 |
|
1068 var LMsymbols = [ |
|
1069 //Greek letters |
|
1070 {input:"\\alpha", tag:"mi", output:"\u03B1", ttype:CONST}, |
|
1071 {input:"\\beta", tag:"mi", output:"\u03B2", ttype:CONST}, |
|
1072 {input:"\\gamma", tag:"mi", output:"\u03B3", ttype:CONST}, |
|
1073 {input:"\\delta", tag:"mi", output:"\u03B4", ttype:CONST}, |
|
1074 {input:"\\epsilon", tag:"mi", output:"\u03B5", ttype:CONST}, |
|
1075 {input:"\\varepsilon", tag:"mi", output:"\u025B", ttype:CONST}, |
|
1076 {input:"\\zeta", tag:"mi", output:"\u03B6", ttype:CONST}, |
|
1077 {input:"\\eta", tag:"mi", output:"\u03B7", ttype:CONST}, |
|
1078 {input:"\\theta", tag:"mi", output:"\u03B8", ttype:CONST}, |
|
1079 {input:"\\vartheta", tag:"mi", output:"\u03D1", ttype:CONST}, |
|
1080 {input:"\\iota", tag:"mi", output:"\u03B9", ttype:CONST}, |
|
1081 {input:"\\kappa", tag:"mi", output:"\u03BA", ttype:CONST}, |
|
1082 {input:"\\lambda", tag:"mi", output:"\u03BB", ttype:CONST}, |
|
1083 {input:"\\mu", tag:"mi", output:"\u03BC", ttype:CONST}, |
|
1084 {input:"\\nu", tag:"mi", output:"\u03BD", ttype:CONST}, |
|
1085 {input:"\\xi", tag:"mi", output:"\u03BE", ttype:CONST}, |
|
1086 {input:"\\pi", tag:"mi", output:"\u03C0", ttype:CONST}, |
|
1087 {input:"\\varpi", tag:"mi", output:"\u03D6", ttype:CONST}, |
|
1088 {input:"\\rho", tag:"mi", output:"\u03C1", ttype:CONST}, |
|
1089 {input:"\\varrho", tag:"mi", output:"\u03F1", ttype:CONST}, |
|
1090 {input:"\\varsigma", tag:"mi", output:"\u03C2", ttype:CONST}, |
|
1091 {input:"\\sigma", tag:"mi", output:"\u03C3", ttype:CONST}, |
|
1092 {input:"\\tau", tag:"mi", output:"\u03C4", ttype:CONST}, |
|
1093 {input:"\\upsilon", tag:"mi", output:"\u03C5", ttype:CONST}, |
|
1094 {input:"\\phi", tag:"mi", output:"\u03C6", ttype:CONST}, |
|
1095 {input:"\\varphi", tag:"mi", output:"\u03D5", ttype:CONST}, |
|
1096 {input:"\\chi", tag:"mi", output:"\u03C7", ttype:CONST}, |
|
1097 {input:"\\psi", tag:"mi", output:"\u03C8", ttype:CONST}, |
|
1098 {input:"\\omega", tag:"mi", output:"\u03C9", ttype:CONST}, |
|
1099 {input:"\\Gamma", tag:"mo", output:"\u0393", ttype:CONST}, |
|
1100 {input:"\\Delta", tag:"mo", output:"\u0394", ttype:CONST}, |
|
1101 {input:"\\Theta", tag:"mo", output:"\u0398", ttype:CONST}, |
|
1102 {input:"\\Lambda", tag:"mo", output:"\u039B", ttype:CONST}, |
|
1103 {input:"\\Xi", tag:"mo", output:"\u039E", ttype:CONST}, |
|
1104 {input:"\\Pi", tag:"mo", output:"\u03A0", ttype:CONST}, |
|
1105 {input:"\\Sigma", tag:"mo", output:"\u03A3", ttype:CONST}, |
|
1106 {input:"\\Upsilon", tag:"mo", output:"\u03A5", ttype:CONST}, |
|
1107 {input:"\\Phi", tag:"mo", output:"\u03A6", ttype:CONST}, |
|
1108 {input:"\\Psi", tag:"mo", output:"\u03A8", ttype:CONST}, |
|
1109 {input:"\\Omega", tag:"mo", output:"\u03A9", ttype:CONST}, |
|
1110 |
|
1111 //fractions |
|
1112 {input:"\\frac12", tag:"mo", output:"\u00BD", ttype:CONST}, |
|
1113 {input:"\\frac14", tag:"mo", output:"\u00BC", ttype:CONST}, |
|
1114 {input:"\\frac34", tag:"mo", output:"\u00BE", ttype:CONST}, |
|
1115 {input:"\\frac13", tag:"mo", output:"\u2153", ttype:CONST}, |
|
1116 {input:"\\frac23", tag:"mo", output:"\u2154", ttype:CONST}, |
|
1117 {input:"\\frac15", tag:"mo", output:"\u2155", ttype:CONST}, |
|
1118 {input:"\\frac25", tag:"mo", output:"\u2156", ttype:CONST}, |
|
1119 {input:"\\frac35", tag:"mo", output:"\u2157", ttype:CONST}, |
|
1120 {input:"\\frac45", tag:"mo", output:"\u2158", ttype:CONST}, |
|
1121 {input:"\\frac16", tag:"mo", output:"\u2159", ttype:CONST}, |
|
1122 {input:"\\frac56", tag:"mo", output:"\u215A", ttype:CONST}, |
|
1123 {input:"\\frac18", tag:"mo", output:"\u215B", ttype:CONST}, |
|
1124 {input:"\\frac38", tag:"mo", output:"\u215C", ttype:CONST}, |
|
1125 {input:"\\frac58", tag:"mo", output:"\u215D", ttype:CONST}, |
|
1126 {input:"\\frac78", tag:"mo", output:"\u215E", ttype:CONST}, |
|
1127 |
|
1128 //binary operation symbols |
|
1129 {input:"\\pm", tag:"mo", output:"\u00B1", ttype:CONST}, |
|
1130 {input:"\\mp", tag:"mo", output:"\u2213", ttype:CONST}, |
|
1131 {input:"\\triangleleft",tag:"mo", output:"\u22B2", ttype:CONST}, |
|
1132 {input:"\\triangleright",tag:"mo",output:"\u22B3", ttype:CONST}, |
|
1133 {input:"\\cdot", tag:"mo", output:"\u22C5", ttype:CONST}, |
|
1134 {input:"\\star", tag:"mo", output:"\u22C6", ttype:CONST}, |
|
1135 {input:"\\ast", tag:"mo", output:"\u002A", ttype:CONST}, |
|
1136 {input:"\\times", tag:"mo", output:"\u00D7", ttype:CONST}, |
|
1137 {input:"\\div", tag:"mo", output:"\u00F7", ttype:CONST}, |
|
1138 {input:"\\circ", tag:"mo", output:"\u2218", ttype:CONST}, |
|
1139 //{input:"\\bullet", tag:"mo", output:"\u2219", ttype:CONST}, |
|
1140 {input:"\\bullet", tag:"mo", output:"\u2022", ttype:CONST}, |
|
1141 {input:"\\oplus", tag:"mo", output:"\u2295", ttype:CONST}, |
|
1142 {input:"\\ominus", tag:"mo", output:"\u2296", ttype:CONST}, |
|
1143 {input:"\\otimes", tag:"mo", output:"\u2297", ttype:CONST}, |
|
1144 {input:"\\bigcirc", tag:"mo", output:"\u25CB", ttype:CONST}, |
|
1145 {input:"\\oslash", tag:"mo", output:"\u2298", ttype:CONST}, |
|
1146 {input:"\\odot", tag:"mo", output:"\u2299", ttype:CONST}, |
|
1147 {input:"\\land", tag:"mo", output:"\u2227", ttype:CONST}, |
|
1148 {input:"\\wedge", tag:"mo", output:"\u2227", ttype:CONST}, |
|
1149 {input:"\\lor", tag:"mo", output:"\u2228", ttype:CONST}, |
|
1150 {input:"\\vee", tag:"mo", output:"\u2228", ttype:CONST}, |
|
1151 {input:"\\cap", tag:"mo", output:"\u2229", ttype:CONST}, |
|
1152 {input:"\\cup", tag:"mo", output:"\u222A", ttype:CONST}, |
|
1153 {input:"\\sqcap", tag:"mo", output:"\u2293", ttype:CONST}, |
|
1154 {input:"\\sqcup", tag:"mo", output:"\u2294", ttype:CONST}, |
|
1155 {input:"\\uplus", tag:"mo", output:"\u228E", ttype:CONST}, |
|
1156 {input:"\\amalg", tag:"mo", output:"\u2210", ttype:CONST}, |
|
1157 {input:"\\bigtriangleup",tag:"mo",output:"\u25B3", ttype:CONST}, |
|
1158 {input:"\\bigtriangledown",tag:"mo",output:"\u25BD", ttype:CONST}, |
|
1159 {input:"\\dag", tag:"mo", output:"\u2020", ttype:CONST}, |
|
1160 {input:"\\dagger", tag:"mo", output:"\u2020", ttype:CONST}, |
|
1161 {input:"\\ddag", tag:"mo", output:"\u2021", ttype:CONST}, |
|
1162 {input:"\\ddagger", tag:"mo", output:"\u2021", ttype:CONST}, |
|
1163 {input:"\\lhd", tag:"mo", output:"\u22B2", ttype:CONST}, |
|
1164 {input:"\\rhd", tag:"mo", output:"\u22B3", ttype:CONST}, |
|
1165 {input:"\\unlhd", tag:"mo", output:"\u22B4", ttype:CONST}, |
|
1166 {input:"\\unrhd", tag:"mo", output:"\u22B5", ttype:CONST}, |
|
1167 |
|
1168 |
|
1169 //BIG Operators |
|
1170 {input:"\\sum", tag:"mo", output:"\u2211", ttype:UNDEROVER}, |
|
1171 {input:"\\prod", tag:"mo", output:"\u220F", ttype:UNDEROVER}, |
|
1172 {input:"\\bigcap", tag:"mo", output:"\u22C2", ttype:UNDEROVER}, |
|
1173 {input:"\\bigcup", tag:"mo", output:"\u22C3", ttype:UNDEROVER}, |
|
1174 {input:"\\bigwedge", tag:"mo", output:"\u22C0", ttype:UNDEROVER}, |
|
1175 {input:"\\bigvee", tag:"mo", output:"\u22C1", ttype:UNDEROVER}, |
|
1176 {input:"\\bigsqcap", tag:"mo", output:"\u2A05", ttype:UNDEROVER}, |
|
1177 {input:"\\bigsqcup", tag:"mo", output:"\u2A06", ttype:UNDEROVER}, |
|
1178 {input:"\\coprod", tag:"mo", output:"\u2210", ttype:UNDEROVER}, |
|
1179 {input:"\\bigoplus", tag:"mo", output:"\u2A01", ttype:UNDEROVER}, |
|
1180 {input:"\\bigotimes", tag:"mo", output:"\u2A02", ttype:UNDEROVER}, |
|
1181 {input:"\\bigodot", tag:"mo", output:"\u2A00", ttype:UNDEROVER}, |
|
1182 {input:"\\biguplus", tag:"mo", output:"\u2A04", ttype:UNDEROVER}, |
|
1183 {input:"\\int", tag:"mo", output:"\u222B", ttype:CONST}, |
|
1184 {input:"\\oint", tag:"mo", output:"\u222E", ttype:CONST}, |
|
1185 |
|
1186 //binary relation symbols |
|
1187 {input:":=", tag:"mo", output:":=", ttype:CONST}, |
|
1188 {input:"\\lt", tag:"mo", output:"<", ttype:CONST}, |
|
1189 {input:"\\gt", tag:"mo", output:">", ttype:CONST}, |
|
1190 {input:"\\ne", tag:"mo", output:"\u2260", ttype:CONST}, |
|
1191 {input:"\\neq", tag:"mo", output:"\u2260", ttype:CONST}, |
|
1192 {input:"\\le", tag:"mo", output:"\u2264", ttype:CONST}, |
|
1193 {input:"\\leq", tag:"mo", output:"\u2264", ttype:CONST}, |
|
1194 {input:"\\leqslant", tag:"mo", output:"\u2264", ttype:CONST}, |
|
1195 {input:"\\ge", tag:"mo", output:"\u2265", ttype:CONST}, |
|
1196 {input:"\\geq", tag:"mo", output:"\u2265", ttype:CONST}, |
|
1197 {input:"\\geqslant", tag:"mo", output:"\u2265", ttype:CONST}, |
|
1198 {input:"\\equiv", tag:"mo", output:"\u2261", ttype:CONST}, |
|
1199 {input:"\\ll", tag:"mo", output:"\u226A", ttype:CONST}, |
|
1200 {input:"\\gg", tag:"mo", output:"\u226B", ttype:CONST}, |
|
1201 {input:"\\doteq", tag:"mo", output:"\u2250", ttype:CONST}, |
|
1202 {input:"\\prec", tag:"mo", output:"\u227A", ttype:CONST}, |
|
1203 {input:"\\succ", tag:"mo", output:"\u227B", ttype:CONST}, |
|
1204 {input:"\\preceq", tag:"mo", output:"\u227C", ttype:CONST}, |
|
1205 {input:"\\succeq", tag:"mo", output:"\u227D", ttype:CONST}, |
|
1206 {input:"\\subset", tag:"mo", output:"\u2282", ttype:CONST}, |
|
1207 {input:"\\supset", tag:"mo", output:"\u2283", ttype:CONST}, |
|
1208 {input:"\\subseteq", tag:"mo", output:"\u2286", ttype:CONST}, |
|
1209 {input:"\\supseteq", tag:"mo", output:"\u2287", ttype:CONST}, |
|
1210 {input:"\\sqsubset", tag:"mo", output:"\u228F", ttype:CONST}, |
|
1211 {input:"\\sqsupset", tag:"mo", output:"\u2290", ttype:CONST}, |
|
1212 {input:"\\sqsubseteq", tag:"mo", output:"\u2291", ttype:CONST}, |
|
1213 {input:"\\sqsupseteq", tag:"mo", output:"\u2292", ttype:CONST}, |
|
1214 {input:"\\sim", tag:"mo", output:"\u223C", ttype:CONST}, |
|
1215 {input:"\\simeq", tag:"mo", output:"\u2243", ttype:CONST}, |
|
1216 {input:"\\approx", tag:"mo", output:"\u2248", ttype:CONST}, |
|
1217 {input:"\\cong", tag:"mo", output:"\u2245", ttype:CONST}, |
|
1218 {input:"\\Join", tag:"mo", output:"\u22C8", ttype:CONST}, |
|
1219 {input:"\\bowtie", tag:"mo", output:"\u22C8", ttype:CONST}, |
|
1220 {input:"\\in", tag:"mo", output:"\u2208", ttype:CONST}, |
|
1221 {input:"\\ni", tag:"mo", output:"\u220B", ttype:CONST}, |
|
1222 {input:"\\owns", tag:"mo", output:"\u220B", ttype:CONST}, |
|
1223 {input:"\\propto", tag:"mo", output:"\u221D", ttype:CONST}, |
|
1224 {input:"\\vdash", tag:"mo", output:"\u22A2", ttype:CONST}, |
|
1225 {input:"\\dashv", tag:"mo", output:"\u22A3", ttype:CONST}, |
|
1226 {input:"\\models", tag:"mo", output:"\u22A8", ttype:CONST}, |
|
1227 {input:"\\perp", tag:"mo", output:"\u22A5", ttype:CONST}, |
|
1228 {input:"\\smile", tag:"mo", output:"\u2323", ttype:CONST}, |
|
1229 {input:"\\frown", tag:"mo", output:"\u2322", ttype:CONST}, |
|
1230 {input:"\\asymp", tag:"mo", output:"\u224D", ttype:CONST}, |
|
1231 {input:"\\notin", tag:"mo", output:"\u2209", ttype:CONST}, |
|
1232 |
|
1233 //matrices |
|
1234 {input:"\\begin{eqnarray}", output:"X", ttype:MATRIX, invisible:true}, |
|
1235 {input:"\\begin{array}", output:"X", ttype:MATRIX, invisible:true}, |
|
1236 {input:"\\\\", output:"}&{", ttype:DEFINITION}, |
|
1237 {input:"\\end{eqnarray}", output:"}}", ttype:DEFINITION}, |
|
1238 {input:"\\end{array}", output:"}}", ttype:DEFINITION}, |
|
1239 |
|
1240 //grouping and literal brackets -- ieval is for IE |
|
1241 {input:"\\big", tag:"mo", output:"X", atval:"1.2", ieval:"2.2", ttype:BIG}, |
|
1242 {input:"\\Big", tag:"mo", output:"X", atval:"1.6", ieval:"2.6", ttype:BIG}, |
|
1243 {input:"\\bigg", tag:"mo", output:"X", atval:"2.2", ieval:"3.2", ttype:BIG}, |
|
1244 {input:"\\Bigg", tag:"mo", output:"X", atval:"2.9", ieval:"3.9", ttype:BIG}, |
|
1245 {input:"\\left", tag:"mo", output:"X", ttype:LEFTBRACKET}, |
|
1246 {input:"\\right", tag:"mo", output:"X", ttype:RIGHTBRACKET}, |
|
1247 {input:"{", output:"{", ttype:LEFTBRACKET, invisible:true}, |
|
1248 {input:"}", output:"}", ttype:RIGHTBRACKET, invisible:true}, |
|
1249 |
|
1250 {input:"(", tag:"mo", output:"(", atval:"1", ttype:STRETCHY}, |
|
1251 {input:"[", tag:"mo", output:"[", atval:"1", ttype:STRETCHY}, |
|
1252 {input:"\\lbrack", tag:"mo", output:"[", atval:"1", ttype:STRETCHY}, |
|
1253 {input:"\\{", tag:"mo", output:"{", atval:"1", ttype:STRETCHY}, |
|
1254 {input:"\\lbrace", tag:"mo", output:"{", atval:"1", ttype:STRETCHY}, |
|
1255 {input:"\\langle", tag:"mo", output:"\u2329", atval:"1", ttype:STRETCHY}, |
|
1256 {input:"\\lfloor", tag:"mo", output:"\u230A", atval:"1", ttype:STRETCHY}, |
|
1257 {input:"\\lceil", tag:"mo", output:"\u2308", atval:"1", ttype:STRETCHY}, |
|
1258 |
|
1259 // rtag:"mi" causes space to be inserted before a following sin, cos, etc. |
|
1260 // (see function LMparseExpr() ) |
|
1261 {input:")", tag:"mo",output:")", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1262 {input:"]", tag:"mo",output:"]", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1263 {input:"\\rbrack",tag:"mo",output:"]", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1264 {input:"\\}", tag:"mo",output:"}", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1265 {input:"\\rbrace",tag:"mo",output:"}", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1266 {input:"\\rangle",tag:"mo",output:"\u232A", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1267 {input:"\\rfloor",tag:"mo",output:"\u230B", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1268 {input:"\\rceil", tag:"mo",output:"\u2309", rtag:"mi",atval:"1",ttype:STRETCHY}, |
|
1269 |
|
1270 // "|", "\\|", "\\vert" and "\\Vert" modified later: lspace = rspace = 0em |
|
1271 {input:"|", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY}, |
|
1272 {input:"\\|", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY}, |
|
1273 {input:"\\vert", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY}, |
|
1274 {input:"\\Vert", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY}, |
|
1275 {input:"\\mid", tag:"mo", output:"\u2223", atval:"1", ttype:STRETCHY}, |
|
1276 {input:"\\parallel", tag:"mo", output:"\u2225", atval:"1", ttype:STRETCHY}, |
|
1277 {input:"/", tag:"mo", output:"/", atval:"1.01", ttype:STRETCHY}, |
|
1278 {input:"\\backslash", tag:"mo", output:"\u2216", atval:"1", ttype:STRETCHY}, |
|
1279 {input:"\\setminus", tag:"mo", output:"\\", ttype:CONST}, |
|
1280 |
|
1281 //miscellaneous symbols |
|
1282 {input:"\\!", tag:"mspace", atname:"width", atval:"-0.167em", ttype:SPACE}, |
|
1283 {input:"\\,", tag:"mspace", atname:"width", atval:"0.167em", ttype:SPACE}, |
|
1284 {input:"\\>", tag:"mspace", atname:"width", atval:"0.222em", ttype:SPACE}, |
|
1285 {input:"\\:", tag:"mspace", atname:"width", atval:"0.222em", ttype:SPACE}, |
|
1286 {input:"\\;", tag:"mspace", atname:"width", atval:"0.278em", ttype:SPACE}, |
|
1287 {input:"~", tag:"mspace", atname:"width", atval:"0.333em", ttype:SPACE}, |
|
1288 {input:"\\quad", tag:"mspace", atname:"width", atval:"1em", ttype:SPACE}, |
|
1289 {input:"\\qquad", tag:"mspace", atname:"width", atval:"2em", ttype:SPACE}, |
|
1290 //{input:"{}", tag:"mo", output:"\u200B", ttype:CONST}, // zero-width |
|
1291 {input:"\\prime", tag:"mo", output:"\u2032", ttype:CONST}, |
|
1292 {input:"'", tag:"mo", output:"\u02B9", ttype:CONST}, |
|
1293 {input:"''", tag:"mo", output:"\u02BA", ttype:CONST}, |
|
1294 {input:"'''", tag:"mo", output:"\u2034", ttype:CONST}, |
|
1295 {input:"''''", tag:"mo", output:"\u2057", ttype:CONST}, |
|
1296 {input:"\\ldots", tag:"mo", output:"\u2026", ttype:CONST}, |
|
1297 {input:"\\cdots", tag:"mo", output:"\u22EF", ttype:CONST}, |
|
1298 {input:"\\vdots", tag:"mo", output:"\u22EE", ttype:CONST}, |
|
1299 {input:"\\ddots", tag:"mo", output:"\u22F1", ttype:CONST}, |
|
1300 {input:"\\forall", tag:"mo", output:"\u2200", ttype:CONST}, |
|
1301 {input:"\\exists", tag:"mo", output:"\u2203", ttype:CONST}, |
|
1302 {input:"\\Re", tag:"mo", output:"\u211C", ttype:CONST}, |
|
1303 {input:"\\Im", tag:"mo", output:"\u2111", ttype:CONST}, |
|
1304 {input:"\\aleph", tag:"mo", output:"\u2135", ttype:CONST}, |
|
1305 {input:"\\hbar", tag:"mo", output:"\u210F", ttype:CONST}, |
|
1306 {input:"\\ell", tag:"mo", output:"\u2113", ttype:CONST}, |
|
1307 {input:"\\wp", tag:"mo", output:"\u2118", ttype:CONST}, |
|
1308 {input:"\\emptyset", tag:"mo", output:"\u2205", ttype:CONST}, |
|
1309 {input:"\\infty", tag:"mo", output:"\u221E", ttype:CONST}, |
|
1310 {input:"\\surd", tag:"mo", output:"\\sqrt{}", ttype:DEFINITION}, |
|
1311 {input:"\\partial", tag:"mo", output:"\u2202", ttype:CONST}, |
|
1312 {input:"\\nabla", tag:"mo", output:"\u2207", ttype:CONST}, |
|
1313 {input:"\\triangle", tag:"mo", output:"\u25B3", ttype:CONST}, |
|
1314 {input:"\\therefore", tag:"mo", output:"\u2234", ttype:CONST}, |
|
1315 {input:"\\angle", tag:"mo", output:"\u2220", ttype:CONST}, |
|
1316 //{input:"\\\\ ", tag:"mo", output:"\u00A0", ttype:CONST}, |
|
1317 {input:"\\diamond", tag:"mo", output:"\u22C4", ttype:CONST}, |
|
1318 //{input:"\\Diamond", tag:"mo", output:"\u25CA", ttype:CONST}, |
|
1319 {input:"\\Diamond", tag:"mo", output:"\u25C7", ttype:CONST}, |
|
1320 {input:"\\neg", tag:"mo", output:"\u00AC", ttype:CONST}, |
|
1321 {input:"\\lnot", tag:"mo", output:"\u00AC", ttype:CONST}, |
|
1322 {input:"\\bot", tag:"mo", output:"\u22A5", ttype:CONST}, |
|
1323 {input:"\\top", tag:"mo", output:"\u22A4", ttype:CONST}, |
|
1324 {input:"\\square", tag:"mo", output:"\u25AB", ttype:CONST}, |
|
1325 {input:"\\Box", tag:"mo", output:"\u25A1", ttype:CONST}, |
|
1326 {input:"\\wr", tag:"mo", output:"\u2240", ttype:CONST}, |
|
1327 |
|
1328 //standard functions |
|
1329 //Note UNDEROVER *must* have tag:"mo" to work properly |
|
1330 {input:"\\arccos", tag:"mi", output:"arccos", ttype:UNARY, func:true}, |
|
1331 {input:"\\arcsin", tag:"mi", output:"arcsin", ttype:UNARY, func:true}, |
|
1332 {input:"\\arctan", tag:"mi", output:"arctan", ttype:UNARY, func:true}, |
|
1333 {input:"\\arg", tag:"mi", output:"arg", ttype:UNARY, func:true}, |
|
1334 {input:"\\cos", tag:"mi", output:"cos", ttype:UNARY, func:true}, |
|
1335 {input:"\\cosh", tag:"mi", output:"cosh", ttype:UNARY, func:true}, |
|
1336 {input:"\\cot", tag:"mi", output:"cot", ttype:UNARY, func:true}, |
|
1337 {input:"\\coth", tag:"mi", output:"coth", ttype:UNARY, func:true}, |
|
1338 {input:"\\csc", tag:"mi", output:"csc", ttype:UNARY, func:true}, |
|
1339 {input:"\\deg", tag:"mi", output:"deg", ttype:UNARY, func:true}, |
|
1340 {input:"\\det", tag:"mi", output:"det", ttype:UNARY, func:true}, |
|
1341 {input:"\\dim", tag:"mi", output:"dim", ttype:UNARY, func:true}, //CONST? |
|
1342 {input:"\\exp", tag:"mi", output:"exp", ttype:UNARY, func:true}, |
|
1343 {input:"\\gcd", tag:"mi", output:"gcd", ttype:UNARY, func:true}, //CONST? |
|
1344 {input:"\\hom", tag:"mi", output:"hom", ttype:UNARY, func:true}, |
|
1345 {input:"\\inf", tag:"mo", output:"inf", ttype:UNDEROVER}, |
|
1346 {input:"\\ker", tag:"mi", output:"ker", ttype:UNARY, func:true}, |
|
1347 {input:"\\lg", tag:"mi", output:"lg", ttype:UNARY, func:true}, |
|
1348 {input:"\\lim", tag:"mo", output:"lim", ttype:UNDEROVER}, |
|
1349 {input:"\\liminf", tag:"mo", output:"liminf", ttype:UNDEROVER}, |
|
1350 {input:"\\limsup", tag:"mo", output:"limsup", ttype:UNDEROVER}, |
|
1351 {input:"\\ln", tag:"mi", output:"ln", ttype:UNARY, func:true}, |
|
1352 {input:"\\log", tag:"mi", output:"log", ttype:UNARY, func:true}, |
|
1353 {input:"\\max", tag:"mo", output:"max", ttype:UNDEROVER}, |
|
1354 {input:"\\min", tag:"mo", output:"min", ttype:UNDEROVER}, |
|
1355 {input:"\\Pr", tag:"mi", output:"Pr", ttype:UNARY, func:true}, |
|
1356 {input:"\\sec", tag:"mi", output:"sec", ttype:UNARY, func:true}, |
|
1357 {input:"\\sin", tag:"mi", output:"sin", ttype:UNARY, func:true}, |
|
1358 {input:"\\sinh", tag:"mi", output:"sinh", ttype:UNARY, func:true}, |
|
1359 {input:"\\sup", tag:"mo", output:"sup", ttype:UNDEROVER}, |
|
1360 {input:"\\tan", tag:"mi", output:"tan", ttype:UNARY, func:true}, |
|
1361 {input:"\\tanh", tag:"mi", output:"tanh", ttype:UNARY, func:true}, |
|
1362 |
|
1363 //arrows |
|
1364 {input:"\\gets", tag:"mo", output:"\u2190", ttype:CONST}, |
|
1365 {input:"\\leftarrow", tag:"mo", output:"\u2190", ttype:CONST}, |
|
1366 {input:"\\to", tag:"mo", output:"\u2192", ttype:CONST}, |
|
1367 {input:"\\rightarrow", tag:"mo", output:"\u2192", ttype:CONST}, |
|
1368 {input:"\\leftrightarrow", tag:"mo", output:"\u2194", ttype:CONST}, |
|
1369 {input:"\\uparrow", tag:"mo", output:"\u2191", ttype:CONST}, |
|
1370 {input:"\\downarrow", tag:"mo", output:"\u2193", ttype:CONST}, |
|
1371 {input:"\\updownarrow", tag:"mo", output:"\u2195", ttype:CONST}, |
|
1372 {input:"\\Leftarrow", tag:"mo", output:"\u21D0", ttype:CONST}, |
|
1373 {input:"\\Rightarrow", tag:"mo", output:"\u21D2", ttype:CONST}, |
|
1374 {input:"\\Leftrightarrow", tag:"mo", output:"\u21D4", ttype:CONST}, |
|
1375 {input:"\\iff", tag:"mo", output:"~\\Longleftrightarrow~", ttype:DEFINITION}, |
|
1376 {input:"\\Uparrow", tag:"mo", output:"\u21D1", ttype:CONST}, |
|
1377 {input:"\\Downarrow", tag:"mo", output:"\u21D3", ttype:CONST}, |
|
1378 {input:"\\Updownarrow", tag:"mo", output:"\u21D5", ttype:CONST}, |
|
1379 {input:"\\mapsto", tag:"mo", output:"\u21A6", ttype:CONST}, |
|
1380 {input:"\\longleftarrow", tag:"mo", output:"\u2190", ttype:LONG}, |
|
1381 {input:"\\longrightarrow", tag:"mo", output:"\u2192", ttype:LONG}, |
|
1382 {input:"\\longleftrightarrow", tag:"mo", output:"\u2194", ttype:LONG}, |
|
1383 {input:"\\Longleftarrow", tag:"mo", output:"\u21D0", ttype:LONG}, |
|
1384 {input:"\\Longrightarrow", tag:"mo", output:"\u21D2", ttype:LONG}, |
|
1385 {input:"\\Longleftrightarrow", tag:"mo", output:"\u21D4", ttype:LONG}, |
|
1386 {input:"\\longmapsto", tag:"mo", output:"\u21A6", ttype:CONST}, |
|
1387 // disaster if LONG |
|
1388 |
|
1389 //commands with argument |
|
1390 LMsqrt, LMroot, LMfrac, LMover, LMsub, LMsup, LMtext, LMmbox, LMatop, LMchoose, |
|
1391 //LMdiv, LMquote, |
|
1392 |
|
1393 //diacritical marks |
|
1394 {input:"\\acute", tag:"mover", output:"\u00B4", ttype:UNARY, acc:true}, |
|
1395 //{input:"\\acute", tag:"mover", output:"\u0317", ttype:UNARY, acc:true}, |
|
1396 //{input:"\\acute", tag:"mover", output:"\u0301", ttype:UNARY, acc:true}, |
|
1397 //{input:"\\grave", tag:"mover", output:"\u0300", ttype:UNARY, acc:true}, |
|
1398 //{input:"\\grave", tag:"mover", output:"\u0316", ttype:UNARY, acc:true}, |
|
1399 {input:"\\grave", tag:"mover", output:"\u0060", ttype:UNARY, acc:true}, |
|
1400 {input:"\\breve", tag:"mover", output:"\u02D8", ttype:UNARY, acc:true}, |
|
1401 {input:"\\check", tag:"mover", output:"\u02C7", ttype:UNARY, acc:true}, |
|
1402 {input:"\\dot", tag:"mover", output:".", ttype:UNARY, acc:true}, |
|
1403 {input:"\\ddot", tag:"mover", output:"..", ttype:UNARY, acc:true}, |
|
1404 //{input:"\\ddot", tag:"mover", output:"\u00A8", ttype:UNARY, acc:true}, |
|
1405 {input:"\\mathring", tag:"mover", output:"\u00B0", ttype:UNARY, acc:true}, |
|
1406 {input:"\\vec", tag:"mover", output:"\u20D7", ttype:UNARY, acc:true}, |
|
1407 {input:"\\overrightarrow",tag:"mover",output:"\u20D7", ttype:UNARY, acc:true}, |
|
1408 {input:"\\overleftarrow",tag:"mover", output:"\u20D6", ttype:UNARY, acc:true}, |
|
1409 {input:"\\hat", tag:"mover", output:"\u005E", ttype:UNARY, acc:true}, |
|
1410 {input:"\\widehat", tag:"mover", output:"\u0302", ttype:UNARY, acc:true}, |
|
1411 {input:"\\tilde", tag:"mover", output:"~", ttype:UNARY, acc:true}, |
|
1412 //{input:"\\tilde", tag:"mover", output:"\u0303", ttype:UNARY, acc:true}, |
|
1413 {input:"\\widetilde", tag:"mover", output:"\u02DC", ttype:UNARY, acc:true}, |
|
1414 {input:"\\bar", tag:"mover", output:"\u203E", ttype:UNARY, acc:true}, |
|
1415 {input:"\\overbrace", tag:"mover", output:"\u23B4", ttype:UNARY, acc:true}, |
|
1416 {input:"\\overline", tag:"mover", output:"\u00AF", ttype:UNARY, acc:true}, |
|
1417 {input:"\\underbrace", tag:"munder", output:"\u23B5", ttype:UNARY, acc:true}, |
|
1418 {input:"\\underline", tag:"munder", output:"\u00AF", ttype:UNARY, acc:true}, |
|
1419 //{input:"underline", tag:"munder", output:"\u0332", ttype:UNARY, acc:true}, |
|
1420 |
|
1421 //typestyles and fonts |
|
1422 {input:"\\displaystyle",tag:"mstyle",atname:"displaystyle",atval:"true", ttype:UNARY}, |
|
1423 {input:"\\textstyle",tag:"mstyle",atname:"displaystyle",atval:"false", ttype:UNARY}, |
|
1424 {input:"\\scriptstyle",tag:"mstyle",atname:"scriptlevel",atval:"1", ttype:UNARY}, |
|
1425 {input:"\\scriptscriptstyle",tag:"mstyle",atname:"scriptlevel",atval:"2", ttype:UNARY}, |
|
1426 {input:"\\textrm", tag:"mstyle", output:"\\mathrm", ttype: DEFINITION}, |
|
1427 {input:"\\mathbf", tag:"mstyle", atname:"mathvariant", atval:"bold", ttype:UNARY}, |
|
1428 {input:"\\textbf", tag:"mstyle", atname:"mathvariant", atval:"bold", ttype:UNARY}, |
|
1429 {input:"\\mathit", tag:"mstyle", atname:"mathvariant", atval:"italic", ttype:UNARY}, |
|
1430 {input:"\\textit", tag:"mstyle", atname:"mathvariant", atval:"italic", ttype:UNARY}, |
|
1431 {input:"\\mathtt", tag:"mstyle", atname:"mathvariant", atval:"monospace", ttype:UNARY}, |
|
1432 {input:"\\texttt", tag:"mstyle", atname:"mathvariant", atval:"monospace", ttype:UNARY}, |
|
1433 {input:"\\mathsf", tag:"mstyle", atname:"mathvariant", atval:"sans-serif", ttype:UNARY}, |
|
1434 {input:"\\mathbb", tag:"mstyle", atname:"mathvariant", atval:"double-struck", ttype:UNARY, codes:LMbbb}, |
|
1435 {input:"\\mathcal",tag:"mstyle", atname:"mathvariant", atval:"script", ttype:UNARY, codes:LMcal}, |
|
1436 {input:"\\mathfrak",tag:"mstyle",atname:"mathvariant", atval:"fraktur",ttype:UNARY, codes:LMfrk} |
|
1437 ]; |
|
1438 |
|
1439 function compareNames(s1,s2) { |
|
1440 if (s1.input > s2.input) return 1 |
|
1441 else return -1; |
|
1442 } |
|
1443 |
|
1444 var LMnames = []; //list of input symbols |
|
1445 |
|
1446 function LMinitSymbols() { |
|
1447 LMsymbols.sort(compareNames); |
|
1448 for (i=0; i<LMsymbols.length; i++) LMnames[i] = LMsymbols[i].input; |
|
1449 } |
|
1450 |
|
1451 var LMmathml = "http://www.w3.org/1998/Math/MathML"; |
|
1452 |
|
1453 function LMcreateElementMathML(t) { |
|
1454 if (isIE) return document.createElement("m:"+t); |
|
1455 else return document.createElementNS(LMmathml,t); |
|
1456 } |
|
1457 |
|
1458 function LMcreateMmlNode(t,frag) { |
|
1459 // var node = LMcreateElementMathML(name); |
|
1460 if (isIE) var node = document.createElement("m:"+t); |
|
1461 else var node = document.createElementNS(LMmathml,t); |
|
1462 node.appendChild(frag); |
|
1463 return node; |
|
1464 } |
|
1465 |
|
1466 function newcommand(oldstr,newstr) { |
|
1467 LMsymbols = LMsymbols.concat([{input:oldstr, tag:"mo", output:newstr, |
|
1468 ttype:DEFINITION}]); |
|
1469 } |
|
1470 |
|
1471 function LMremoveCharsAndBlanks(str,n) { |
|
1472 //remove n characters and any following blanks |
|
1473 var st; |
|
1474 st = str.slice(n); |
|
1475 for (var i=0; i<st.length && st.charCodeAt(i)<=32; i=i+1); |
|
1476 return st.slice(i); |
|
1477 } |
|
1478 |
|
1479 function LMposition(arr, str, n) { |
|
1480 // return position >=n where str appears or would be inserted |
|
1481 // assumes arr is sorted |
|
1482 if (n==0) { |
|
1483 var h,m; |
|
1484 n = -1; |
|
1485 h = arr.length; |
|
1486 while (n+1<h) { |
|
1487 m = (n+h) >> 1; |
|
1488 if (arr[m]<str) n = m; else h = m; |
|
1489 } |
|
1490 return h; |
|
1491 } else |
|
1492 for (var i=n; i<arr.length && arr[i]<str; i++); |
|
1493 return i; // i=arr.length || arr[i]>=str |
|
1494 } |
|
1495 |
|
1496 function LMgetSymbol(str) { |
|
1497 //return maximal initial substring of str that appears in names |
|
1498 //return null if there is none |
|
1499 var k = 0; //new pos |
|
1500 var j = 0; //old pos |
|
1501 var mk; //match pos |
|
1502 var st; |
|
1503 var tagst; |
|
1504 var match = ""; |
|
1505 var more = true; |
|
1506 for (var i=1; i<=str.length && more; i++) { |
|
1507 st = str.slice(0,i); //initial substring of length i |
|
1508 j = k; |
|
1509 k = LMposition(LMnames, st, j); |
|
1510 if (k<LMnames.length && str.slice(0,LMnames[k].length)==LMnames[k]){ |
|
1511 match = LMnames[k]; |
|
1512 mk = k; |
|
1513 i = match.length; |
|
1514 } |
|
1515 more = k<LMnames.length && str.slice(0,LMnames[k].length)>=LMnames[k]; |
|
1516 } |
|
1517 LMpreviousSymbol=LMcurrentSymbol; |
|
1518 if (match!=""){ |
|
1519 LMcurrentSymbol=LMsymbols[mk].ttype; |
|
1520 return LMsymbols[mk]; |
|
1521 } |
|
1522 LMcurrentSymbol=CONST; |
|
1523 k = 1; |
|
1524 st = str.slice(0,1); //take 1 character |
|
1525 if ("0"<=st && st<="9") tagst = "mn"; |
|
1526 else tagst = (("A">st || st>"Z") && ("a">st || st>"z")?"mo":"mi"); |
|
1527 /* |
|
1528 // Commented out by DRW (not fully understood, but probably to do with |
|
1529 // use of "/" as an INFIX version of "\\frac", which we don't want): |
|
1530 //} |
|
1531 //if (st=="-" && LMpreviousSymbol==INFIX) { |
|
1532 // LMcurrentSymbol = INFIX; //trick "/" into recognizing "-" on second parse |
|
1533 // return {input:st, tag:tagst, output:st, ttype:UNARY, func:true}; |
|
1534 //} |
|
1535 */ |
|
1536 return {input:st, tag:tagst, output:st, ttype:CONST}; |
|
1537 } |
|
1538 |
|
1539 |
|
1540 /*Parsing ASCII math expressions with the following grammar |
|
1541 v ::= [A-Za-z] | greek letters | numbers | other constant symbols |
|
1542 u ::= sqrt | text | bb | other unary symbols for font commands |
|
1543 b ::= frac | root | stackrel binary symbols |
|
1544 l ::= { | \left left brackets |
|
1545 r ::= } | \right right brackets |
|
1546 S ::= v | lEr | uS | bSS Simple expression |
|
1547 I ::= S_S | S^S | S_S^S | S Intermediate expression |
|
1548 E ::= IE | I/I Expression |
|
1549 Each terminal symbol is translated into a corresponding mathml node.*/ |
|
1550 |
|
1551 var LMpreviousSymbol,LMcurrentSymbol; |
|
1552 |
|
1553 function LMparseSexpr(str) { //parses str and returns [node,tailstr,(node)tag] |
|
1554 var symbol, node, result, result2, i, st,// rightvert = false, |
|
1555 newFrag = document.createDocumentFragment(); |
|
1556 str = LMremoveCharsAndBlanks(str,0); |
|
1557 symbol = LMgetSymbol(str); //either a token or a bracket or empty |
|
1558 if (symbol == null || symbol.ttype == RIGHTBRACKET) |
|
1559 return [null,str,null]; |
|
1560 if (symbol.ttype == DEFINITION) { |
|
1561 str = symbol.output+LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1562 symbol = LMgetSymbol(str); |
|
1563 if (symbol == null || symbol.ttype == RIGHTBRACKET) |
|
1564 return [null,str,null]; |
|
1565 } |
|
1566 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1567 switch (symbol.ttype) { |
|
1568 case SPACE: |
|
1569 node = LMcreateElementMathML(symbol.tag); |
|
1570 node.setAttribute(symbol.atname,symbol.atval); |
|
1571 return [node,str,symbol.tag]; |
|
1572 case UNDEROVER: |
|
1573 if (isIE) { |
|
1574 if (symbol.input.substr(0,4) == "\\big") { // botch for missing symbols |
|
1575 str = "\\"+symbol.input.substr(4)+str; // make \bigcup = \cup etc. |
|
1576 symbol = LMgetSymbol(str); |
|
1577 symbol.ttype = UNDEROVER; |
|
1578 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1579 } |
|
1580 } |
|
1581 return [LMcreateMmlNode(symbol.tag, |
|
1582 document.createTextNode(symbol.output)),str,symbol.tag]; |
|
1583 case CONST: |
|
1584 var output = symbol.output; |
|
1585 if (isIE) { |
|
1586 if (symbol.input == "'") |
|
1587 output = "\u2032"; |
|
1588 else if (symbol.input == "''") |
|
1589 output = "\u2033"; |
|
1590 else if (symbol.input == "'''") |
|
1591 output = "\u2033\u2032"; |
|
1592 else if (symbol.input == "''''") |
|
1593 output = "\u2033\u2033"; |
|
1594 else if (symbol.input == "\\square") |
|
1595 output = "\u25A1"; // same as \Box |
|
1596 else if (symbol.input.substr(0,5) == "\\frac") { |
|
1597 // botch for missing fractions |
|
1598 var denom = symbol.input.substr(6,1); |
|
1599 if (denom == "5" || denom == "6") { |
|
1600 str = symbol.input.replace(/\\frac/,"\\frac ")+str; |
|
1601 return [node,str,symbol.tag]; |
|
1602 } |
|
1603 } |
|
1604 } |
|
1605 node = LMcreateMmlNode(symbol.tag,document.createTextNode(output)); |
|
1606 return [node,str,symbol.tag]; |
|
1607 case LONG: // added by DRW |
|
1608 node = LMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)); |
|
1609 node.setAttribute("minsize","1.5"); |
|
1610 node.setAttribute("maxsize","1.5"); |
|
1611 node = LMcreateMmlNode("mover",node); |
|
1612 node.appendChild(LMcreateElementMathML("mspace")); |
|
1613 return [node,str,symbol.tag]; |
|
1614 case STRETCHY: // added by DRW |
|
1615 if (isIE && symbol.input == "\\backslash") |
|
1616 symbol.output = "\\"; // doesn't expand, but then nor does "\u2216" |
|
1617 node = LMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)); |
|
1618 if (symbol.input == "|" || symbol.input == "\\vert" || |
|
1619 symbol.input == "\\|" || symbol.input == "\\Vert") { |
|
1620 node.setAttribute("lspace","0em"); |
|
1621 node.setAttribute("rspace","0em"); |
|
1622 } |
|
1623 node.setAttribute("maxsize",symbol.atval); // don't allow to stretch here |
|
1624 if (symbol.rtag != null) |
|
1625 return [node,str,symbol.rtag]; |
|
1626 else |
|
1627 return [node,str,symbol.tag]; |
|
1628 case BIG: // added by DRW |
|
1629 var atval = symbol.atval; |
|
1630 if (isIE) |
|
1631 atval = symbol.ieval; |
|
1632 symbol = LMgetSymbol(str); |
|
1633 if (symbol == null) |
|
1634 return [null,str,null]; |
|
1635 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1636 node = LMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output)); |
|
1637 if (isIE) { // to get brackets to expand |
|
1638 var space = LMcreateElementMathML("mspace"); |
|
1639 space.setAttribute("height",atval+"ex"); |
|
1640 node = LMcreateMmlNode("mrow",node); |
|
1641 node.appendChild(space); |
|
1642 } else { // ignored in IE |
|
1643 node.setAttribute("minsize",atval); |
|
1644 node.setAttribute("maxsize",atval); |
|
1645 } |
|
1646 return [node,str,symbol.tag]; |
|
1647 case LEFTBRACKET: //read (expr+) |
|
1648 if (symbol.input == "\\left") { // left what? |
|
1649 symbol = LMgetSymbol(str); |
|
1650 if (symbol != null) { |
|
1651 if (symbol.input == ".") |
|
1652 symbol.invisible = true; |
|
1653 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1654 } |
|
1655 } |
|
1656 result = LMparseExpr(str,true,false); |
|
1657 if (symbol==null || |
|
1658 (typeof symbol.invisible == "boolean" && symbol.invisible)) |
|
1659 node = LMcreateMmlNode("mrow",result[0]); |
|
1660 else { |
|
1661 node = LMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
1662 node = LMcreateMmlNode("mrow",node); |
|
1663 node.appendChild(result[0]); |
|
1664 } |
|
1665 return [node,result[1],result[2]]; |
|
1666 case MATRIX: //read (expr+) |
|
1667 if (symbol.input == "\\begin{array}") { |
|
1668 var mask = ""; |
|
1669 symbol = LMgetSymbol(str); |
|
1670 str = LMremoveCharsAndBlanks(str,0); |
|
1671 if (symbol == null) |
|
1672 mask = "l"; |
|
1673 else { |
|
1674 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1675 if (symbol.input != "{") |
|
1676 mask = "l"; |
|
1677 else do { |
|
1678 symbol = LMgetSymbol(str); |
|
1679 if (symbol != null) { |
|
1680 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1681 if (symbol.input != "}") |
|
1682 mask = mask+symbol.input; |
|
1683 } |
|
1684 } while (symbol != null && symbol.input != "" && symbol.input != "}"); |
|
1685 } |
|
1686 result = LMparseExpr("{"+str,true,true); |
|
1687 // if (result[0]==null) return [LMcreateMmlNode("mo", |
|
1688 // document.createTextNode(symbol.input)),str]; |
|
1689 node = LMcreateMmlNode("mtable",result[0]); |
|
1690 mask = mask.replace(/l/g,"left "); |
|
1691 mask = mask.replace(/r/g,"right "); |
|
1692 mask = mask.replace(/c/g,"center "); |
|
1693 node.setAttribute("columnalign",mask); |
|
1694 node.setAttribute("displaystyle","false"); |
|
1695 if (isIE) |
|
1696 return [node,result[1],null]; |
|
1697 // trying to get a *little* bit of space around the array |
|
1698 // (IE already includes it) |
|
1699 var lspace = LMcreateElementMathML("mspace"); |
|
1700 lspace.setAttribute("width","0.167em"); |
|
1701 var rspace = LMcreateElementMathML("mspace"); |
|
1702 rspace.setAttribute("width","0.167em"); |
|
1703 var node1 = LMcreateMmlNode("mrow",lspace); |
|
1704 node1.appendChild(node); |
|
1705 node1.appendChild(rspace); |
|
1706 return [node1,result[1],null]; |
|
1707 } else { // eqnarray |
|
1708 result = LMparseExpr("{"+str,true,true); |
|
1709 node = LMcreateMmlNode("mtable",result[0]); |
|
1710 if (isIE) |
|
1711 node.setAttribute("columnspacing","0.25em"); // best in practice? |
|
1712 else |
|
1713 node.setAttribute("columnspacing","0.167em"); // correct (but ignored?) |
|
1714 node.setAttribute("columnalign","right center left"); |
|
1715 node.setAttribute("displaystyle","true"); |
|
1716 node = LMcreateMmlNode("mrow",node); |
|
1717 return [node,result[1],null]; |
|
1718 } |
|
1719 case TEXT: |
|
1720 if (str.charAt(0)=="{") i=str.indexOf("}"); |
|
1721 else i = 0; |
|
1722 if (i==-1) |
|
1723 i = str.length; |
|
1724 st = str.slice(1,i); |
|
1725 if (st.charAt(0) == " ") { |
|
1726 node = LMcreateElementMathML("mspace"); |
|
1727 node.setAttribute("width","0.33em"); // was 1ex |
|
1728 newFrag.appendChild(node); |
|
1729 } |
|
1730 newFrag.appendChild( |
|
1731 LMcreateMmlNode(symbol.tag,document.createTextNode(st))); |
|
1732 if (st.charAt(st.length-1) == " ") { |
|
1733 node = LMcreateElementMathML("mspace"); |
|
1734 node.setAttribute("width","0.33em"); // was 1ex |
|
1735 newFrag.appendChild(node); |
|
1736 } |
|
1737 str = LMremoveCharsAndBlanks(str,i+1); |
|
1738 return [LMcreateMmlNode("mrow",newFrag),str,null]; |
|
1739 case UNARY: |
|
1740 result = LMparseSexpr(str); |
|
1741 if (result[0]==null) return [LMcreateMmlNode(symbol.tag, |
|
1742 document.createTextNode(symbol.output)),str]; |
|
1743 if (typeof symbol.func == "boolean" && symbol.func) { // functions hack |
|
1744 st = str.charAt(0); |
|
1745 // if (st=="^" || st=="_" || st=="/" || st=="|" || st==",") { |
|
1746 if (st=="^" || st=="_" || st==",") { |
|
1747 return [LMcreateMmlNode(symbol.tag, |
|
1748 document.createTextNode(symbol.output)),str,symbol.tag]; |
|
1749 } else { |
|
1750 node = LMcreateMmlNode("mrow", |
|
1751 LMcreateMmlNode(symbol.tag,document.createTextNode(symbol.output))); |
|
1752 if (isIE) { |
|
1753 var space = LMcreateElementMathML("mspace"); |
|
1754 space.setAttribute("width","0.167em"); |
|
1755 node.appendChild(space); |
|
1756 } |
|
1757 node.appendChild(result[0]); |
|
1758 return [node,result[1],symbol.tag]; |
|
1759 } |
|
1760 } |
|
1761 if (symbol.input == "\\sqrt") { // sqrt |
|
1762 if (isIE) { // set minsize, for \surd |
|
1763 var space = LMcreateElementMathML("mspace"); |
|
1764 space.setAttribute("height","1.2ex"); |
|
1765 space.setAttribute("width","0em"); // probably no effect |
|
1766 node = LMcreateMmlNode(symbol.tag,result[0]) |
|
1767 // node.setAttribute("minsize","1"); // ignored |
|
1768 // node = LMcreateMmlNode("mrow",node); // hopefully unnecessary |
|
1769 node.appendChild(space); |
|
1770 return [node,result[1],symbol.tag]; |
|
1771 } else |
|
1772 return [LMcreateMmlNode(symbol.tag,result[0]),result[1],symbol.tag]; |
|
1773 } else if (typeof symbol.acc == "boolean" && symbol.acc) { // accent |
|
1774 node = LMcreateMmlNode(symbol.tag,result[0]); |
|
1775 var output = symbol.output; |
|
1776 if (isIE) { |
|
1777 if (symbol.input == "\\hat") |
|
1778 output = "\u0302"; |
|
1779 else if (symbol.input == "\\widehat") |
|
1780 output = "\u005E"; |
|
1781 else if (symbol.input == "\\bar") |
|
1782 output = "\u00AF"; |
|
1783 else if (symbol.input == "\\grave") |
|
1784 output = "\u0300"; |
|
1785 else if (symbol.input == "\\tilde") |
|
1786 output = "\u0303"; |
|
1787 } |
|
1788 var node1 = LMcreateMmlNode("mo",document.createTextNode(output)); |
|
1789 if (symbol.input == "\\vec" || symbol.input == "\\check") |
|
1790 // don't allow to stretch |
|
1791 node1.setAttribute("maxsize","1.2"); |
|
1792 // why doesn't "1" work? \vec nearly disappears in firefox |
|
1793 if (isIE && symbol.input == "\\bar") |
|
1794 node1.setAttribute("maxsize","0.5"); |
|
1795 if (symbol.input == "\\underbrace" || symbol.input == "\\underline") |
|
1796 node1.setAttribute("accentunder","true"); |
|
1797 else |
|
1798 node1.setAttribute("accent","true"); |
|
1799 node.appendChild(node1); |
|
1800 if (symbol.input == "\\overbrace" || symbol.input == "\\underbrace") |
|
1801 node.ttype = UNDEROVER; |
|
1802 return [node,result[1],symbol.tag]; |
|
1803 } else { // font change or displaystyle command |
|
1804 if (!isIE && typeof symbol.codes != "undefined") { |
|
1805 for (i=0; i<result[0].childNodes.length; i++) |
|
1806 if (result[0].childNodes[i].nodeName=="mi" || result[0].nodeName=="mi") { |
|
1807 st = (result[0].nodeName=="mi"?result[0].firstChild.nodeValue: |
|
1808 result[0].childNodes[i].firstChild.nodeValue); |
|
1809 var newst = []; |
|
1810 for (var j=0; j<st.length; j++) |
|
1811 if (st.charCodeAt(j)>64 && st.charCodeAt(j)<91) newst = newst + |
|
1812 String.fromCharCode(symbol.codes[st.charCodeAt(j)-65]); |
|
1813 else newst = newst + st.charAt(j); |
|
1814 if (result[0].nodeName=="mi") |
|
1815 result[0]=LMcreateElementMathML("mo"). |
|
1816 appendChild(document.createTextNode(newst)); |
|
1817 else result[0].replaceChild(LMcreateElementMathML("mo"). |
|
1818 appendChild(document.createTextNode(newst)),result[0].childNodes[i]); |
|
1819 } |
|
1820 } |
|
1821 node = LMcreateMmlNode(symbol.tag,result[0]); |
|
1822 node.setAttribute(symbol.atname,symbol.atval); |
|
1823 if (symbol.input == "\\scriptstyle" || |
|
1824 symbol.input == "\\scriptscriptstyle") |
|
1825 node.setAttribute("displaystyle","false"); |
|
1826 return [node,result[1],symbol.tag]; |
|
1827 } |
|
1828 case BINARY: |
|
1829 result = LMparseSexpr(str); |
|
1830 if (result[0]==null) return [LMcreateMmlNode("mo", |
|
1831 document.createTextNode(symbol.input)),str,null]; |
|
1832 result2 = LMparseSexpr(result[1]); |
|
1833 if (result2[0]==null) return [LMcreateMmlNode("mo", |
|
1834 document.createTextNode(symbol.input)),str,null]; |
|
1835 if (symbol.input=="\\root" || symbol.input=="\\stackrel") |
|
1836 newFrag.appendChild(result2[0]); |
|
1837 newFrag.appendChild(result[0]); |
|
1838 if (symbol.input=="\\frac") newFrag.appendChild(result2[0]); |
|
1839 return [LMcreateMmlNode(symbol.tag,newFrag),result2[1],symbol.tag]; |
|
1840 case INFIX: |
|
1841 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1842 return [LMcreateMmlNode("mo",document.createTextNode(symbol.output)), |
|
1843 str,symbol.tag]; |
|
1844 default: |
|
1845 return [LMcreateMmlNode(symbol.tag, //its a constant |
|
1846 document.createTextNode(symbol.output)),str,symbol.tag]; |
|
1847 } |
|
1848 } |
|
1849 |
|
1850 function LMparseIexpr(str) { |
|
1851 var symbol, sym1, sym2, node, result, tag, underover; |
|
1852 str = LMremoveCharsAndBlanks(str,0); |
|
1853 sym1 = LMgetSymbol(str); |
|
1854 result = LMparseSexpr(str); |
|
1855 node = result[0]; |
|
1856 str = result[1]; |
|
1857 tag = result[2]; |
|
1858 symbol = LMgetSymbol(str); |
|
1859 if (symbol.ttype == INFIX) { |
|
1860 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1861 result = LMparseSexpr(str); |
|
1862 if (result[0] == null) // show box in place of missing argument |
|
1863 result[0] = LMcreateMmlNode("mo",document.createTextNode("\u25A1")); |
|
1864 str = result[1]; |
|
1865 tag = result[2]; |
|
1866 if (symbol.input == "_" || symbol.input == "^") { |
|
1867 sym2 = LMgetSymbol(str); |
|
1868 tag = null; // no space between x^2 and a following sin, cos, etc. |
|
1869 // This is for \underbrace and \overbrace |
|
1870 underover = ((sym1.ttype == UNDEROVER) || (node.ttype == UNDEROVER)); |
|
1871 // underover = (sym1.ttype == UNDEROVER); |
|
1872 if (symbol.input == "_" && sym2.input == "^") { |
|
1873 str = LMremoveCharsAndBlanks(str,sym2.input.length); |
|
1874 var res2 = LMparseSexpr(str); |
|
1875 str = res2[1]; |
|
1876 tag = res2[2]; // leave space between x_1^2 and a following sin etc. |
|
1877 node = LMcreateMmlNode((underover?"munderover":"msubsup"),node); |
|
1878 node.appendChild(result[0]); |
|
1879 node.appendChild(res2[0]); |
|
1880 } else if (symbol.input == "_") { |
|
1881 node = LMcreateMmlNode((underover?"munder":"msub"),node); |
|
1882 node.appendChild(result[0]); |
|
1883 } else { |
|
1884 node = LMcreateMmlNode((underover?"mover":"msup"),node); |
|
1885 node.appendChild(result[0]); |
|
1886 } |
|
1887 node = LMcreateMmlNode("mrow",node); // so sum does not stretch |
|
1888 } else { |
|
1889 node = LMcreateMmlNode(symbol.tag,node); |
|
1890 if (symbol.input == "\\atop" || symbol.input == "\\choose") |
|
1891 node.setAttribute("linethickness","0ex"); |
|
1892 node.appendChild(result[0]); |
|
1893 if (symbol.input == "\\choose") |
|
1894 node = LMcreateMmlNode("mfenced",node); |
|
1895 } |
|
1896 } |
|
1897 return [node,str,tag]; |
|
1898 } |
|
1899 |
|
1900 function LMparseExpr(str,rightbracket,matrix) { |
|
1901 var symbol, node, result, i, tag, |
|
1902 newFrag = document.createDocumentFragment(); |
|
1903 do { |
|
1904 str = LMremoveCharsAndBlanks(str,0); |
|
1905 result = LMparseIexpr(str); |
|
1906 node = result[0]; |
|
1907 str = result[1]; |
|
1908 tag = result[2]; |
|
1909 symbol = LMgetSymbol(str); |
|
1910 if (node!=undefined) { |
|
1911 if ((tag == "mn" || tag == "mi") && symbol!=null && |
|
1912 typeof symbol.func == "boolean" && symbol.func) { |
|
1913 // Add space before \sin in 2\sin x or x\sin x |
|
1914 var space = LMcreateElementMathML("mspace"); |
|
1915 space.setAttribute("width","0.167em"); |
|
1916 node = LMcreateMmlNode("mrow",node); |
|
1917 node.appendChild(space); |
|
1918 } |
|
1919 newFrag.appendChild(node); |
|
1920 } |
|
1921 } while ((symbol.ttype != RIGHTBRACKET) |
|
1922 && symbol!=null && symbol.output!=""); |
|
1923 tag = null; |
|
1924 if (symbol.ttype == RIGHTBRACKET) { |
|
1925 if (symbol.input == "\\right") { // right what? |
|
1926 str = LMremoveCharsAndBlanks(str,symbol.input.length); |
|
1927 symbol = LMgetSymbol(str); |
|
1928 if (symbol != null && symbol.input == ".") |
|
1929 symbol.invisible = true; |
|
1930 if (symbol != null) |
|
1931 tag = symbol.rtag; |
|
1932 } |
|
1933 if (symbol!=null) |
|
1934 str = LMremoveCharsAndBlanks(str,symbol.input.length); // ready to return |
|
1935 var len = newFrag.childNodes.length; |
|
1936 if (matrix && |
|
1937 len>0 && newFrag.childNodes[len-1].nodeName == "mrow" && len>1 && |
|
1938 newFrag.childNodes[len-2].nodeName == "mo" && |
|
1939 newFrag.childNodes[len-2].firstChild.nodeValue == "&") { //matrix |
|
1940 var pos = []; // positions of ampersands |
|
1941 var m = newFrag.childNodes.length; |
|
1942 for (i=0; matrix && i<m; i=i+2) { |
|
1943 pos[i] = []; |
|
1944 node = newFrag.childNodes[i]; |
|
1945 for (var j=0; j<node.childNodes.length; j++) |
|
1946 if (node.childNodes[j].firstChild.nodeValue=="&") |
|
1947 pos[i][pos[i].length]=j; |
|
1948 } |
|
1949 var row, frag, n, k, table = document.createDocumentFragment(); |
|
1950 for (i=0; i<m; i=i+2) { |
|
1951 row = document.createDocumentFragment(); |
|
1952 frag = document.createDocumentFragment(); |
|
1953 node = newFrag.firstChild; // <mrow> -&-&...&-&- </mrow> |
|
1954 n = node.childNodes.length; |
|
1955 k = 0; |
|
1956 for (j=0; j<n; j++) { |
|
1957 if (typeof pos[i][k] != "undefined" && j==pos[i][k]){ |
|
1958 node.removeChild(node.firstChild); //remove & |
|
1959 row.appendChild(LMcreateMmlNode("mtd",frag)); |
|
1960 k++; |
|
1961 } else frag.appendChild(node.firstChild); |
|
1962 } |
|
1963 row.appendChild(LMcreateMmlNode("mtd",frag)); |
|
1964 if (newFrag.childNodes.length>2) { |
|
1965 newFrag.removeChild(newFrag.firstChild); //remove <mrow> </mrow> |
|
1966 newFrag.removeChild(newFrag.firstChild); //remove <mo>&</mo> |
|
1967 } |
|
1968 table.appendChild(LMcreateMmlNode("mtr",row)); |
|
1969 } |
|
1970 return [table,str]; |
|
1971 } |
|
1972 if (typeof symbol.invisible != "boolean" || !symbol.invisible) { |
|
1973 node = LMcreateMmlNode("mo",document.createTextNode(symbol.output)); |
|
1974 newFrag.appendChild(node); |
|
1975 } |
|
1976 } |
|
1977 return [newFrag,str,tag]; |
|
1978 } |
|
1979 |
|
1980 function LMparseMath(str) { |
|
1981 var result, node = LMcreateElementMathML("mstyle"); |
|
1982 if (LMmathcolor != "") node.setAttribute("mathcolor",LMmathcolor); |
|
1983 if (LMmathfontfamily != "") node.setAttribute("fontfamily",LMmathfontfamily); |
|
1984 node.appendChild(LMparseExpr(str.replace(/^\s+/g,""),false,false)[0]); |
|
1985 node = LMcreateMmlNode("math",node); |
|
1986 if (LMshowasciiformulaonhover) //fixed by djhsu so newline |
|
1987 node.setAttribute("title",str.replace(/\s+/g," "));//does not show in Gecko |
|
1988 var fnode = LMcreateElementXHTML("span"); |
|
1989 fnode.style.fontSize = mathfontsize; |
|
1990 if (LMmathfontfamily != "") fnode.style.fontFamily = LMmathfontfamily; |
|
1991 fnode.appendChild(node); |
|
1992 return fnode; |
|
1993 } |
|
1994 |
|
1995 function LMstrarr2docFrag(arr, linebreaks) { |
|
1996 var newFrag=document.createDocumentFragment(); |
|
1997 var expr = false; |
|
1998 for (var i=0; i<arr.length; i++) { |
|
1999 if (expr) newFrag.appendChild(LMparseMath(arr[i])); |
|
2000 else { |
|
2001 var arri = (linebreaks ? arr[i].split("\n\n") : [arr[i]]); |
|
2002 newFrag.appendChild(LMcreateElementXHTML("span"). |
|
2003 appendChild(document.createTextNode(arri[0]))); |
|
2004 for (var j=1; j<arri.length; j++) { |
|
2005 newFrag.appendChild(LMcreateElementXHTML("p")); |
|
2006 newFrag.appendChild(LMcreateElementXHTML("span"). |
|
2007 appendChild(document.createTextNode(arri[j]))); |
|
2008 } |
|
2009 } |
|
2010 expr = !expr; |
|
2011 } |
|
2012 return newFrag; |
|
2013 } |
|
2014 |
|
2015 function LMprocessNodeR(n, linebreaks) { |
|
2016 var mtch, str, arr, frg, i; |
|
2017 if (n.childNodes.length == 0) { |
|
2018 if ((n.nodeType!=8 || linebreaks) && |
|
2019 n.parentNode.nodeName!="form" && n.parentNode.nodeName!="FORM" && |
|
2020 n.parentNode.nodeName!="textarea" && n.parentNode.nodeName!="TEXTAREA" && |
|
2021 n.parentNode.nodeName!="pre" && n.parentNode.nodeName!="PRE") { |
|
2022 str = n.nodeValue; |
|
2023 if (!(str == null)) { |
|
2024 str = str.replace(/\r\n\r\n/g,"\n\n"); |
|
2025 str = str.replace(/\x20+/g," "); |
|
2026 str = str.replace(/\s*\r\n/g," "); |
|
2027 // DELIMITERS: |
|
2028 mtch = (str.indexOf("\$")==-1 ? false : true); |
|
2029 str = str.replace(/([^\\])\$/g,"$1 \$"); |
|
2030 str = str.replace(/^\$/," \$"); // in case \$ at start of string |
|
2031 arr = str.split(" \$"); |
|
2032 for (i=0; i<arr.length; i++) |
|
2033 arr[i]=arr[i].replace(/\\\$/g,"\$"); |
|
2034 if (arr.length>1 || mtch) { |
|
2035 if (LMcheckForMathML) { |
|
2036 LMcheckForMathML = false; |
|
2037 var nd = LMisMathMLavailable(); |
|
2038 LMnoMathML = nd != null; |
|
2039 if (LMnoMathML && LMnotifyIfNoMathML) |
|
2040 if (LMalertIfNoMathML) |
|
2041 alert("To view the ASCIIMathML notation use Internet Explorer 6 +\nMathPlayer (free from www.dessci.com)\n\ |
|
2042 or Firefox/Mozilla/Netscape"); |
|
2043 else LMbody.insertBefore(nd,LMbody.childNodes[0]); |
|
2044 } |
|
2045 if (!LMnoMathML) { |
|
2046 frg = LMstrarr2docFrag(arr,n.nodeType==8); |
|
2047 var len = frg.childNodes.length; |
|
2048 n.parentNode.replaceChild(frg,n); |
|
2049 return len-1; |
|
2050 } else return 0; |
|
2051 } |
|
2052 } |
|
2053 } else return 0; |
|
2054 } else if (n.nodeName!="math") { |
|
2055 for (i=0; i<n.childNodes.length; i++) |
|
2056 i += LMprocessNodeR(n.childNodes[i], linebreaks); |
|
2057 } |
|
2058 return 0; |
|
2059 } |
|
2060 |
|
2061 var tcnt = 0, dcnt = 0; //theorem and definition counters |
|
2062 |
|
2063 function simpleLaTeXformatting(st) { |
|
2064 st = st.replace(/\$\$(.*?)\$\$/g,"<p align=\"center\">$\\displaystyle{$1}$</p>"); |
|
2065 st = st.replace(/\\begin{(theorem|lemma|proposition|corollary)}((.|\n)*?)\\end{\1}/g,function(r,s,t){tcnt++; return "<b>"+s.charAt(0).toUpperCase()+s.slice(1)+" "+tcnt+".</b> <i>"+t.replace(/^\s*<\/?\w+\/?>|\s*<\/?\w+\/?>$/g,"")+"</i>"}); |
|
2066 st = st.replace(/\\begin{(definition|example|remark|problem|exercise|conjecture|solution)}((.|\n)*?)\\end{\1}/g,function(r,s,t){dcnt++; return "<b>"+s.charAt(0).toUpperCase()+s.slice(1)+" "+dcnt+".</b> "+t.replace(/^\s*<\/?\w+\/?>|\s*<\/?\w+\/?>$/g,"")}); |
|
2067 st = st.replace(/\\begin{proof}((.|\n)*?)\\end{proof}/g,function(s,t){return "<i>Proof:</i> "+t.replace(/^\s*<\/?\w+\/?>|\s*<\/?\w+\/?>$/g,"")+" □"}); |
|
2068 st = st.replace(/\\emph{(.*?)}/g,"<em>$1</em>"); |
|
2069 st = st.replace(/\\textbf{(.*?)}/g,"<b>$1</b>"); |
|
2070 st = st.replace(/\\cite{(.*?)}/g,"[$1]"); |
|
2071 st = st.replace(/\\chapter{(.*?)}/g,"<h2>$1</h2>"); |
|
2072 st = st.replace(/\\section{(.*?)}(\s*<\/?(br|p)\s?\/?>)?/g,"<h3>$1</h3>"); |
|
2073 st = st.replace(/\\subsection{(.*?)}/g,"<h4>$1</h4>"); |
|
2074 st = st.replace(/\\begin{itemize}(\s*<\/?(br|p)\s?\/?>)?/g,"<ul>"); |
|
2075 st = st.replace(/\\item\s((.|\n)*?)(?=(\\item|\\end))/g,"<li>$1</li>"); |
|
2076 st = st.replace(/\\end{itemize}(\s*<\/?(br|p)\s?\/?>)?/g,"</ul>"); |
|
2077 st = st.replace(/\\begin{enumerate}(\s*<\/?(br|p)\s?\/?>)?/g,"<ol>"); |
|
2078 st = st.replace(/\\end{enumerate}(\s*<\/?(br|p)\s?\/?>)?/g,"</ol>"); |
|
2079 st = st.replace(/\\item\[(.*?)]{(.*?)}/g,"<dt>$1</dt><dd>$2</dd>"); |
|
2080 st = st.replace(/\\begin{description}/g,"<dl>"); |
|
2081 st = st.replace(/\\end{description}/g,"</dl>"); |
|
2082 st = st.replace(/\\newline\b/g,"<br/>"); |
|
2083 st = st.replace(/\\newpage\b/g,"<br style=\"page-break-after:always;\">"); |
|
2084 st = st.replace(/\\par\b/g,"<p> </p>"); |
|
2085 st = st.replace(/\\bigskip/g,"<p style=\"margin-bottom:0.5in\"> </p>"); |
|
2086 st = st.replace(/\\medskip/g,"<p style=\"margin-bottom:0.3in\"> </p>"); |
|
2087 st = st.replace(/\\smallskip/g,"<p style=\"margin-bottom:0.15in\"> </p>"); |
|
2088 st = st.replace(/\\begin{center}(.*?)\\end{center}/g,"<p align=\"center\">$1</p>"); |
|
2089 st = st.replace(/<embed\s+class\s?=\s?"ASCIIsvg"/g,"<embed class=\"ASCIIsvg\" src=\""+dsvglocation+"d.svg\" wmode=\"transparent\""); |
|
2090 st = st.replace(/(?:\\begin{a?graph}|agraph|\(:graph\s)((.|\n)*?)(?:\\end{a?graph}|enda?graph|:\))/g,function(s,t){return "<div><embed class=\"ASCIIsvg\" src=\""+dsvglocation+"d.svg\" wmode=\"transparent\" script=\'"+t.replace(/<\/?(br|p|pre)\s?\/?>/gi,"\n")+"\'/></div>"}); |
|
2091 // st = st.replace(/\(:graph((.|\n)*?):\)/g,function(s,t){return "<div><embed class=\"ASCIIsvg\" src=\""+dsvglocation+"d.svg\" wmode=\"transparent\" script=\'"+t.replace(/<\/?(br|p|pre)\s?\/?>/gi,"\n")+"\'/></div>"}); |
|
2092 st = st.replace(/insertASCIIMathCalculator/g,"<div class=\"ASCIIMathCalculator\"></div>"); |
|
2093 return st |
|
2094 } |
|
2095 |
|
2096 function LMprocessNode(n, linebreaks, spanclassLM) { |
|
2097 var frag,st; |
|
2098 if (spanclassLM!=null) { |
|
2099 frag = document.getElementsByTagName("span") |
|
2100 for (var i=0;i<frag.length;i++) |
|
2101 if (frag[i].className == "LM") |
|
2102 LMprocessNodeR(frag[i],linebreaks); |
|
2103 } else { |
|
2104 try { |
|
2105 st = n.innerHTML; |
|
2106 } catch(err) {} |
|
2107 var am = /amath|agraph/i.test(st); |
|
2108 if ((st==null || st.indexOf("\$ ")!=-1 || st.indexOf("\$<")!=-1 || |
|
2109 st.indexOf("\\begin")!=-1 || am || st.slice(-1)=="$" || |
|
2110 st.indexOf("\$\n")!=-1)&& !/edit-content|HTMLArea|wikiedit/.test(st)){ |
|
2111 if (!avoidinnerHTML && translateLaTeXformatting) |
|
2112 st = simpleLaTeXformatting(st); |
|
2113 if (st!=null && am && !avoidinnerHTML) { |
|
2114 //alert(st) |
|
2115 st = st.replace(/<sup>(.*?)<\/sup>(\s|(\S))/gi,"^{$1} $3"); |
|
2116 // st = st.replace(/<\/?font.*?>/gi,""); // do this only in amath...end |
|
2117 st = st.replace(/(Proof:)/g,"<i>$1</i>"); |
|
2118 st = st.replace(/QED/g,"□"); |
|
2119 st = st.replace(/(\\?end{?a?math}?)/ig,"<span></span>$1"); |
|
2120 st = st.replace(/(\bamath|\\begin{a?math})/ig,"<span></span>$1"); |
|
2121 st = st.replace(/([>\n])(Theorem|Lemma|Proposition|Corollary|Definition|Example|Remark|Problem|Exercise|Conjecture|Solution)(:|\W\W?(\w|\.)*?\W?:)/g,"$1<b>$2$3</b>"); |
|
2122 } |
|
2123 st = st.replace(/%7E/g,"~"); |
|
2124 if (!avoidinnerHTML) n.innerHTML = st; |
|
2125 LMprocessNodeR(n,linebreaks); |
|
2126 } |
|
2127 } |
|
2128 if (isIE) { //needed to match size and font of formula to surrounding text |
|
2129 frag = document.getElementsByTagName('math'); |
|
2130 for (var i=0;i<frag.length;i++) frag[i].update() |
|
2131 } |
|
2132 } |
|
2133 |
|
2134 var LMbody; |
|
2135 var LMnoMathML = false, LMtranslated = false; |
|
2136 |
|
2137 function LMtranslate(spanclassLM) { |
|
2138 if (!LMtranslated) { // run this only once |
|
2139 LMtranslated = true; |
|
2140 LMinitSymbols(); |
|
2141 LMbody = document.getElementsByTagName("body")[0]; |
|
2142 var processN = document.getElementById(AMdocumentId); |
|
2143 //alert(processN) |
|
2144 LMprocessNode((processN!=null?processN:LMbody), false, spanclassLM); |
|
2145 } |
|
2146 } |
|
2147 |
|
2148 if (isIE) { // avoid adding MathPlayer info explicitly to each webpage |
|
2149 document.write("<object id=\"mathplayer\"\ |
|
2150 classid=\"clsid:32F66A20-7614-11D4-BD11-00104BD3F987\"></object>"); |
|
2151 document.write("<?import namespace=\"m\" implementation=\"#mathplayer\"?>"); |
|
2152 } |
|
2153 |
|
2154 /* ASCIIsvg.js |
|
2155 ============== |
|
2156 JavaScript routines to dynamically generate Scalable Vector Graphics |
|
2157 using a mathematical xy-coordinate system (y increases upwards) and |
|
2158 very intuitive JavaScript commands (no programming experience required). |
|
2159 ASCIIsvg.js is good for learning math and illustrating online math texts. |
|
2160 Works with Internet Explorer+Adobe SVGviewer and SVG enabled Mozilla/Firefox. |
|
2161 |
|
2162 Ver 1.2.9 July 31, 2007 (c) Peter Jipsen http://www.chapman.edu/~jipsen |
|
2163 Latest version at http://math.chapman.edu/~jipsen/math/pub/ASCIIsvg.js |
|
2164 If you use it on a webpage, please send the URL to jipsen@chapman.edu |
|
2165 |
|
2166 This program is free software; you can redistribute it and/or modify |
|
2167 it under the terms of the GNU Lesser General Public License as published by |
|
2168 the Free Software Foundation; either version 2.1 of the License, or (at |
|
2169 your option) any later version. |
|
2170 |
|
2171 This program is distributed in the hope that it will be useful, |
|
2172 but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
2173 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser |
|
2174 General Public License (at http://www.gnu.org/license/lgpl.html) |
|
2175 for more details.*/ |
|
2176 |
|
2177 // you can change these |
|
2178 var checkIfSVGavailable = true; |
|
2179 var notifyIfNoSVG = true; |
|
2180 var alertIfNoSVG = false; |
|
2181 |
|
2182 // global defaults used if not specified by graph (you can change these) |
|
2183 var defaultwidth = 300; defaultheight = 200; // in pixels |
|
2184 var defaultxmin = -5.5; defaultxmax = 5.5; // in usercoords |
|
2185 var defaultborder = 0; border = defaultborder; // in pixel |
|
2186 var defaultstrokewidth = "1"; // default line width in pixel |
|
2187 var defaultstroke = "blue"; // default line color |
|
2188 var defaultstrokeopacity = 1; // transparent = 0, solid =1 |
|
2189 var defaultstrokedasharray = null; // "10,10" gives 10px long dashes |
|
2190 var defaultfill = "none"; // default fill color |
|
2191 var defaultfillopacity = 1; // transparent = 0, solid =1 |
|
2192 var defaultfontstyle = "normal"; // default text shape normal|italic|inherit |
|
2193 var defaultfontfamily = "times"; // default font times|ariel|helvetica|... |
|
2194 var defaultfontsize = "16"; // default size (scaled automatically) |
|
2195 var defaultfontweight = "normal";// normal|bold|bolder|lighter|100|...|900 |
|
2196 var defaultfontstroke = "none"; // default font outline color |
|
2197 var defaultfontfill = "none"; // default font color |
|
2198 var defaultmarker = "none"; // "dot" | "arrow" | "+" | "-" | "|" |
|
2199 var defaultendpoints = ""; // "c-d" where c is <|o|* and d is >|o|* |
|
2200 |
|
2201 // global values used for all pictures (you can change these) |
|
2202 var showcoordinates = true; |
|
2203 var markerstrokewidth = "1"; |
|
2204 var markerstroke = "black"; |
|
2205 var markerfill = "yellow"; |
|
2206 var markersize = 4; |
|
2207 var arrowfill = stroke; |
|
2208 var dotradius = 4; |
|
2209 var ticklength = 4; |
|
2210 var axesstroke = "black"; |
|
2211 var gridstroke = "grey"; |
|
2212 var backgroundstyle = "fill-opacity:0; fill:white"; |
|
2213 var singlelettersitalic = true; |
|
2214 |
|
2215 // internal variables (probably no need to change these) |
|
2216 var picturepos = null; // position of picture relative to top of HTML page |
|
2217 var xunitlength; // in pixels, used to convert to user coordinates |
|
2218 var yunitlength; // in pixels |
|
2219 var origin = [0,0]; // in pixels (default is bottom left corner) |
|
2220 var above = "above"; // shorthands (to avoid typing quotes) |
|
2221 var below = "below"; |
|
2222 var left = "left"; |
|
2223 var right = "right"; |
|
2224 var aboveleft = "aboveleft"; |
|
2225 var aboveright = "aboveright"; |
|
2226 var belowleft = "belowleft"; |
|
2227 var belowright = "belowright"; |
|
2228 var xmin, xmax, ymin, ymax, xscl, yscl, |
|
2229 xgrid, ygrid, xtick, ytick, initialized; |
|
2230 var strokewidth, strokedasharray, stroke, fill, strokeopacity, fillopacity; |
|
2231 var fontstyle, fontfamily, fontsize, fontweight, fontstroke, fontfill; |
|
2232 var marker, endpoints, dynamic = {}; |
|
2233 var picture, svgpicture, doc, width, height, a, b, c, d, i, n, p, t, x, y; |
|
2234 var isIE = document.createElementNS==null; |
|
2235 |
|
2236 var cpi = "\u03C0", ctheta = "\u03B8"; // character for pi, theta |
|
2237 var log = function(x) { return ln(x)/ln(10) }; |
|
2238 var pi = Math.PI, e = Math.E, ln = Math.log, sqrt = Math.sqrt; |
|
2239 var floor = Math.floor, ceil = Math.ceil, abs = Math.abs; |
|
2240 var sin = Math.sin, cos = Math.cos, tan = Math.tan; |
|
2241 var arcsin = Math.asin, arccos = Math.acos, arctan = Math.atan; |
|
2242 var sec = function(x) { return 1/Math.cos(x) }; |
|
2243 var csc = function(x) { return 1/Math.sin(x) }; |
|
2244 var cot = function(x) { return 1/Math.tan(x) }; |
|
2245 var arcsec = function(x) { return arccos(1/x) }; |
|
2246 var arccsc = function(x) { return arcsin(1/x) }; |
|
2247 var arccot = function(x) { return arctan(1/x) }; |
|
2248 var sinh = function(x) { return (Math.exp(x)-Math.exp(-x))/2 }; |
|
2249 var cosh = function(x) { return (Math.exp(x)+Math.exp(-x))/2 }; |
|
2250 var tanh = |
|
2251 function(x) { return (Math.exp(x)-Math.exp(-x))/(Math.exp(x)+Math.exp(-x)) }; |
|
2252 var sech = function(x) { return 1/cosh(x) }; |
|
2253 var csch = function(x) { return 1/sinh(x) }; |
|
2254 var coth = function(x) { return 1/tanh(x) }; |
|
2255 var arcsinh = function(x) { return ln(x+Math.sqrt(x*x+1)) }; |
|
2256 var arccosh = function(x) { return ln(x+Math.sqrt(x*x-1)) }; |
|
2257 var arctanh = function(x) { return ln((1+x)/(1-x))/2 }; |
|
2258 var sech = function(x) { return 1/cosh(x) }; |
|
2259 var csch = function(x) { return 1/sinh(x) }; |
|
2260 var coth = function(x) { return 1/tanh(x) }; |
|
2261 var arcsech = function(x) { return arccosh(1/x) }; |
|
2262 var arccsch = function(x) { return arcsinh(1/x) }; |
|
2263 var arccoth = function(x) { return arctanh(1/x) }; |
|
2264 var sign = function(x) { return (x==0?0:(x<0?-1:1)) }; |
|
2265 |
|
2266 function factorial(x,n) { // Factorial function |
|
2267 if (n==null) n=1; |
|
2268 if (Math.abs(x-Math.round(x*1000000)/1000000)<1e-15) |
|
2269 x = Math.round(x*1000000)/1000000; |
|
2270 if (x-Math.floor(x)!=0) return NaN; |
|
2271 for (var i=x-n; i>0; i-=n) x*=i; |
|
2272 return (x<0?NaN:(x==0?1:x)); |
|
2273 } |
|
2274 |
|
2275 function C(x,k) { // Binomial coefficient function |
|
2276 var res=1; |
|
2277 for (var i=0; i<k; i++) res*=(x-i)/(k-i); |
|
2278 return res; |
|
2279 } |
|
2280 |
|
2281 function chop(x,n) { // Truncate decimal number to n places after decimal point |
|
2282 if (n==null) n=0; |
|
2283 return Math.floor(x*Math.pow(10,n))/Math.pow(10,n); |
|
2284 } |
|
2285 |
|
2286 function ran(a,b,n) { // Generate random number in [a,b] with n digits after . |
|
2287 if (n==null) n=0; |
|
2288 return chop((b+Math.pow(10,-n)-a)*Math.random()+a,n); |
|
2289 } |
|
2290 |
|
2291 function myCreateElementXHTML(t) { |
|
2292 if (isIE) return document.createElement(t); |
|
2293 else return document.createElementNS("http://www.w3.org/1999/xhtml",t); |
|
2294 } |
|
2295 |
|
2296 function myCreateElementSVG(t) { |
|
2297 if (isIE) return doc.createElement(t); |
|
2298 else return doc.createElementNS("http://www.w3.org/2000/svg",t); |
|
2299 } |
|
2300 |
|
2301 function getElementsByClass(container, tagName, clsName){ |
|
2302 var list = new Array(0); |
|
2303 var collection = container.getElementsByTagName(tagName); |
|
2304 for(var i = 0; i < collection.length; i++) |
|
2305 if(collection[i].className.slice(0,clsName.length)==clsName) |
|
2306 list[list.length] = collection[i]; |
|
2307 return list; |
|
2308 } |
|
2309 |
|
2310 function findPos(obj) { // top-left corner of obj on HTML page in pixel |
|
2311 var curleft = curtop = 0; |
|
2312 if (obj.offsetParent) { |
|
2313 curleft = obj.offsetLeft |
|
2314 curtop = obj.offsetTop |
|
2315 while (obj = obj.offsetParent) { |
|
2316 curleft += obj.offsetLeft |
|
2317 curtop += obj.offsetTop |
|
2318 } |
|
2319 } |
|
2320 return [curleft,curtop]; |
|
2321 } |
|
2322 |
|
2323 function isSVGavailable() { |
|
2324 var nd = myCreateElementXHTML("center"); |
|
2325 nd.appendChild(document.createTextNode("To view the ")); |
|
2326 var an = myCreateElementXHTML("a"); |
|
2327 an.appendChild(document.createTextNode("ASCIIsvg")); |
|
2328 an.setAttribute("href","http://www.chapman.edu/~jipsen/asciisvg.html"); |
|
2329 nd.appendChild(an); |
|
2330 nd.appendChild(document.createTextNode(" images use Internet Explorer 6+")); |
|
2331 an = myCreateElementXHTML("a"); |
|
2332 an.appendChild(document.createTextNode("Adobe SVGviewer 3.02")); |
|
2333 an.setAttribute("href","http://www.adobe.com/svg"); |
|
2334 nd.appendChild(an); |
|
2335 nd.appendChild(document.createTextNode(" or ")); |
|
2336 an = myCreateElementXHTML("a"); |
|
2337 an.appendChild(document.createTextNode("SVG enabled Mozilla/Firefox")); |
|
2338 an.setAttribute("href", |
|
2339 "http://www.chapman.edu/~jipsen/svg/svgenabledmozillafirefox.html"); |
|
2340 nd.appendChild(an); |
|
2341 if (navigator.appName.slice(0,8)=="Netscape") |
|
2342 if (window['SVGElement']) return null; |
|
2343 else return nd; |
|
2344 else if (navigator.appName.slice(0,9)=="Microsoft") |
|
2345 try { |
|
2346 var oSVG=eval("new ActiveXObject('Adobe.SVGCtl.3');"); |
|
2347 return null; |
|
2348 } catch (e) { |
|
2349 return nd; |
|
2350 } |
|
2351 else return nd; |
|
2352 } |
|
2353 |
|
2354 function setText(st,id) { // add text to an existing node with given id |
|
2355 var node = document.getElementById(id); |
|
2356 if (node!=null) |
|
2357 if (node.childNodes.length!=0) node.childNodes[0].nodeValue = st; |
|
2358 else node.appendChild(document.createTextNode(st)); |
|
2359 } |
|
2360 |
|
2361 function getX(evt) { // return mouse x-coord in user coordinate system |
|
2362 var svgroot = evt.target.parentNode; |
|
2363 return (evt.clientX+(isIE?0:window.pageXOffset)-svgroot.getAttribute("left")-svgroot.getAttribute("ox"))/(svgroot.getAttribute("xunitlength")-0); |
|
2364 } |
|
2365 |
|
2366 function getY(evt) { // return mouse y-coord in user coordinate system |
|
2367 var svgroot = evt.target.parentNode; |
|
2368 return (svgroot.getAttribute("height")-svgroot.getAttribute("oy")-(evt.clientY+(isIE?0:window.pageYOffset)-svgroot.getAttribute("top")))/(svgroot.getAttribute("yunitlength")-0); |
|
2369 } |
|
2370 |
|
2371 function translateandeval(src) { //modify user input to JavaScript syntax |
|
2372 var errstr; |
|
2373 // replace plot(f(x),...) with plot("f(x)",...) |
|
2374 src = src.replace(/plot\(\x20*([^\"f\[][^\n\r;]+?)\,/g,"plot\(\"$1\","); |
|
2375 src = src.replace(/plot\(\x20*([^\"f\[][^\n\r;]+)\)/g,"plot(\"$1\")"); |
|
2376 |
|
2377 // replace (expr,expr) by [expr,expr] where expr has no (,) in it |
|
2378 src = src.replace(/([=(,]\x20*)\(([-a-z0-9./+*]+?),([-a-z0-9./+*]+?)\)/g,"$1[$2,$3]"); |
|
2379 |
|
2380 // insert * between digit and letter e.g. 2x --> 2*x |
|
2381 src = src.replace(/([0-9])([a-zA-Z])/g,"$1*$2"); |
|
2382 src = src.replace(/\)([\(0-9a-zA-Z])/g,"\)*$1"); |
|
2383 |
|
2384 try { |
|
2385 with (Math) eval(src); // here the svgpicture object is created |
|
2386 } catch(err) { |
|
2387 if (err!="wait") { |
|
2388 if (typeof err=="object") |
|
2389 errstr = err.name+" "+err.message+" "+err.number+" "+err.description; |
|
2390 else errstr = err; |
|
2391 alert(errstr+"\n"+src) |
|
2392 } |
|
2393 } |
|
2394 } |
|
2395 |
|
2396 function drawPictures() { // main routine; called after webpage has loaded |
|
2397 var src, id, dsvg, nd, node, ht, index, cols, arr, i, node2; |
|
2398 var pictures = document.getElementsByTagName("textarea"); |
|
2399 for (index = 0; index<pictures.length; index++) |
|
2400 if (pictures[index].className=="ASCIIsvg"){ |
|
2401 pictures[index].style.display="none"; // hide the textarea |
|
2402 } |
|
2403 var ASbody = document.getElementsByTagName("body")[0]; |
|
2404 pictures = getElementsByClass(ASbody,"embed","ASCIIsvg"); |
|
2405 var len = pictures.length; |
|
2406 if (checkIfSVGavailable) { |
|
2407 nd = isSVGavailable(); |
|
2408 if (nd != null && notifyIfNoSVG && len>0) |
|
2409 if (alertIfNoSVG) |
|
2410 alert("To view the SVG pictures in Internet Explorer\n\ |
|
2411 download the free Adobe SVGviewer from www.adobe.com/svg or\n\ |
|
2412 use Firefox 2.0 or later"); |
|
2413 else { |
|
2414 ASbody.insertBefore(nd,ASbody.childNodes[0]); |
|
2415 } |
|
2416 } |
|
2417 if (nd == null) { |
|
2418 for (index = 0; index < len; index++) { |
|
2419 width = null; height = null; |
|
2420 xmin = null; xmax = null; ymin = null; ymax = null; |
|
2421 xscl = null; xgrid = null; yscl = null; ygrid = null; |
|
2422 initialized = false; |
|
2423 picture = pictures[index]; // current picture object |
|
2424 src = picture.getAttribute("script"); // get the ASCIIsvg code |
|
2425 if (src==null) src = ""; |
|
2426 // insert "axes()" if not present ******** experimental |
|
2427 if (!/axes\b|initPicture/.test(src)) { |
|
2428 var i = 0 |
|
2429 while (/((yscl|ymax|ymin|xscl|xmax|xmin|\bwidth|\bheight)\s*=\s*-?\d*(\d\.|\.\d|\d)\d*\s*;?)/.test(src.slice(i))) i++; |
|
2430 src = (i==0?"axes(); "+src: src.slice(0,i)+src.slice(i).replace(/((scl|max|min|idth|eight)\s*=\s*-?\d*(\d\.|\.\d|\d)\d*\s*;?)/,"$1\naxes();")); |
|
2431 } |
|
2432 ht = picture.getAttribute("height"); |
|
2433 if (isIE) { |
|
2434 picture.setAttribute("wmode","transparent"); |
|
2435 //alert("*"+picture.getAttribute("src")+dsvglocation); |
|
2436 //adding d.svg dynamically greates problems in IE... |
|
2437 if (picture.getAttribute("src")=="") picture.setAttribute("src",dsvglocation+"d.svg"); |
|
2438 } |
|
2439 if (document.getElementById("picture"+(index+1)+"mml")==null) { |
|
2440 picture.parentNode.style.position = "relative"; |
|
2441 node = myCreateElementXHTML("div"); |
|
2442 node.style.position = "absolute"; |
|
2443 node.style.top = "0px"; |
|
2444 node.style.left = "0px"; |
|
2445 node.setAttribute("id","picture"+(index+1)+"mml"); |
|
2446 picture.parentNode.insertBefore(node,picture.nextSibling); |
|
2447 } |
|
2448 if (ht==null) ht =""; |
|
2449 // if (ht!="") defaultborder = 25; |
|
2450 if (ht=="" || src=="") |
|
2451 if (document.getElementById("picture"+(index+1)+"input")==null) { |
|
2452 node = myCreateElementXHTML("textarea"); |
|
2453 arr = src.split("\n"); |
|
2454 cols = 0; |
|
2455 for (i=0;i<arr.length;i++) cols = Math.max(cols,arr[i].length); |
|
2456 node.setAttribute("rows",Math.min(10,arr.length)+1); |
|
2457 node.setAttribute("cols",Math.max(Math.min(60,cols),20)+5); |
|
2458 // node.setAttribute("style","display:block"); |
|
2459 if (isIE) src = src.replace(/([^\r])\n/g,"$1\r"); |
|
2460 node.appendChild(document.createTextNode(src)); |
|
2461 if (src.indexOf("showcode()")==-1) node.style.display = "none"; |
|
2462 node.setAttribute("id","picture"+(index+1)+"input"); |
|
2463 picture.parentNode.insertBefore(node,picture.nextSibling); |
|
2464 picture.parentNode.insertBefore(myCreateElementXHTML("br"),node); |
|
2465 node2 = myCreateElementXHTML("button"); |
|
2466 node2.setAttribute("id","picture"+(index+1)+"button"); |
|
2467 if (isIE) node2.onclick = function() {updatePicture(this)}; |
|
2468 else node2.setAttribute("onclick","updatePicture(this)"); |
|
2469 node2.appendChild(document.createTextNode("Update")); |
|
2470 if (src.indexOf("showcode()")==-1) node2.style.display = "none"; |
|
2471 picture.parentNode.insertBefore(node2,node); |
|
2472 picture.parentNode.insertBefore(myCreateElementXHTML("br"),node); |
|
2473 } else src = document.getElementById("picture"+(index+1)+"input").value; |
|
2474 id = picture.getAttribute("id"); |
|
2475 dsvg = picture.getAttribute("src"); |
|
2476 if (id == null || id == "") { |
|
2477 id = "picture"+(index+1); |
|
2478 picture.setAttribute("id",id); |
|
2479 } |
|
2480 translateandeval(src) |
|
2481 } |
|
2482 } |
|
2483 } |
|
2484 |
|
2485 function setdefaults() { //called before each graph is evaluated |
|
2486 strokewidth = defaultstrokewidth; |
|
2487 stroke = defaultstroke; |
|
2488 strokeopacity = defaultstrokeopacity; |
|
2489 strokedasharray = defaultstrokedasharray; |
|
2490 fill = defaultfill; |
|
2491 fillopacity = defaultfillopacity; |
|
2492 fontstyle = defaultfontstyle; |
|
2493 fontfamily = defaultfontfamily; |
|
2494 fontsize = defaultfontsize; |
|
2495 fontweight = defaultfontweight; |
|
2496 fontstroke = defaultfontstroke; |
|
2497 fontfill = defaultfontfill; |
|
2498 marker = defaultmarker; |
|
2499 endpoints = defaultendpoints; |
|
2500 } |
|
2501 |
|
2502 function switchTo(id) { // used by dynamic code to select appropriate graph |
|
2503 picture = document.getElementById(id); |
|
2504 width = picture.getAttribute("width")-0; |
|
2505 height = picture.getAttribute("height")-0; |
|
2506 setdefaults(); |
|
2507 if ((picture.nodeName == "EMBED" || picture.nodeName == "embed") && isIE) { |
|
2508 svgpicture = picture.getSVGDocument().getElementById("root"); |
|
2509 doc = picture.getSVGDocument(); |
|
2510 } else { |
|
2511 svgpicture = picture; |
|
2512 doc = document; |
|
2513 } |
|
2514 xunitlength = svgpicture.getAttribute("xunitlength")-0; |
|
2515 yunitlength = svgpicture.getAttribute("yunitlength")-0; |
|
2516 xmin = svgpicture.getAttribute("xmin")-0; |
|
2517 xmax = svgpicture.getAttribute("xmax")-0; |
|
2518 ymin = svgpicture.getAttribute("ymin")-0; |
|
2519 ymax = svgpicture.getAttribute("ymax")-0; |
|
2520 origin = [svgpicture.getAttribute("ox")-0,svgpicture.getAttribute("oy")-0]; |
|
2521 } |
|
2522 |
|
2523 function updatePicture(obj) { |
|
2524 var node, src, id; |
|
2525 if (typeof obj=="object") id = obj.id.slice(0,-6); |
|
2526 else id = (typeof obj=="string"?obj:"picture"+(obj+1)); |
|
2527 src = document.getElementById(id+"input").value; |
|
2528 xmin = null; xmax = null; ymin = null; ymax = null; |
|
2529 xscl = null; xgrid = null; yscl = null; ygrid = null; |
|
2530 initialized = false; |
|
2531 picture = document.getElementById(id); |
|
2532 // switchTo(id); |
|
2533 translateandeval(src) |
|
2534 } |
|
2535 |
|
2536 function changepicturesize(evt,factor) { |
|
2537 var obj = evt.target; |
|
2538 var name = obj.parentNode.getAttribute("name"); |
|
2539 var pic = document.getElementById(name); |
|
2540 var src = document.getElementById(name+"input").value; |
|
2541 src = src.replace(/width\s*=\s*\d+/,"width="+(factor*(pic.getAttribute("width")-0))); |
|
2542 src = src.replace(/height\s*=\s*\d+/,"height="+(factor*(pic.getAttribute("height")-0))); |
|
2543 document.getElementById(name+"input").value = src; |
|
2544 //alert(getKey(evt.keycode)) |
|
2545 updatePicture(name); |
|
2546 } |
|
2547 |
|
2548 var sinceFirstClick = 0; // ondblclick simulation from |
|
2549 var dblClkTimer; // http://www.enja.org/david/?cat=13 Thanks! |
|
2550 function timer() { |
|
2551 if(sinceFirstClick<60) { |
|
2552 sinceFirstClick++; |
|
2553 setTimeout("timer()",10); |
|
2554 } else { |
|
2555 clearTimeout(dblClkTimer); |
|
2556 dblClkTimer = ""; |
|
2557 } |
|
2558 } |
|
2559 function mClick(evt) { |
|
2560 if(sinceFirstClick!=0) { |
|
2561 if(sinceFirstClick <= 40) { |
|
2562 if (evt.shiftKey) changepicturesize(evt,2); |
|
2563 else if (evt.altKey) changepicturesize(evt,.5); |
|
2564 else showHideCode(evt); // do this on dblclick |
|
2565 clearTimeout(dblClkTimer); |
|
2566 dblClkTimer = ""; |
|
2567 } else { |
|
2568 clearTimeout(dblClkTimer); |
|
2569 sinceFirstClick = 0; |
|
2570 dblClkTimer = setTimeout("timer()",10); |
|
2571 } |
|
2572 } else { |
|
2573 sinceFirstClick = 0; |
|
2574 dblClkTimer = setTimeout("timer()",10); |
|
2575 } |
|
2576 } |
|
2577 |
|
2578 function showHideCode(evt) { // called by onclick event |
|
2579 // if (evt.getDetail()==2) {//getDetail unfortunately not in Firefox |
|
2580 var obj=evt.target; |
|
2581 var name = obj.parentNode.getAttribute("name"); |
|
2582 var node = document.getElementById(name+"input"); |
|
2583 node.style.display = (node.style.display == "none"?"":"none"); |
|
2584 var node = document.getElementById(name+"button"); |
|
2585 node.style.display = (node.style.display == "none"?"":"none"); |
|
2586 // } |
|
2587 } |
|
2588 |
|
2589 function showcode() {} // do nothing |
|
2590 |
|
2591 function setBorder(x) { border = x } //deprecate |
|
2592 |
|
2593 function initPicture(x_min,x_max,y_min,y_max) { // set up the graph |
|
2594 // usually called by axes() or noaxes(), but can be used directly |
|
2595 if (!initialized) { |
|
2596 setdefaults(); |
|
2597 initialized = true; |
|
2598 if (x_min!=null) xmin = x_min; |
|
2599 if (x_max!=null) xmax = x_max; |
|
2600 if (y_min!=null) ymin = y_min; |
|
2601 if (y_max!=null) ymax = y_max; |
|
2602 if (xmin==null) xmin = defaultxmin; |
|
2603 if (xmax==null) xmax = defaultxmax; |
|
2604 if (typeof xmin != "number" || typeof xmax != "number" || xmin >= xmax) |
|
2605 alert("Picture requires at least two numbers: xmin < xmax"); |
|
2606 else if (y_max != null && (typeof y_min != "number" || |
|
2607 typeof y_max != "number" || y_min >= y_max)) |
|
2608 alert("initPicture(xmin,xmax,ymin,ymax) requires numbers ymin < ymax"); |
|
2609 else { |
|
2610 if (width==null) { |
|
2611 width = picture.getAttribute("width"); |
|
2612 if (width==null || width=="") width=defaultwidth; |
|
2613 } |
|
2614 picture.setAttribute("width",width); |
|
2615 if (height==null) { |
|
2616 height = picture.getAttribute("height"); |
|
2617 if (height==null || height=="") height=defaultheight; |
|
2618 } |
|
2619 picture.setAttribute("height",height); |
|
2620 xunitlength = (width-2*border)/(xmax-xmin); |
|
2621 yunitlength = xunitlength; |
|
2622 //alert(xmin+" "+xmax+" "+ymin+" "+ymax) |
|
2623 if (ymin==null) { |
|
2624 origin = [-xmin*xunitlength+border,height/2]; |
|
2625 ymin = -(height-2*border)/(2*yunitlength); |
|
2626 ymax = -ymin; |
|
2627 } else { |
|
2628 if (ymax!=null) yunitlength = (height-2*border)/(ymax-ymin); |
|
2629 else ymax = (height-2*border)/yunitlength + ymin; |
|
2630 origin = [-xmin*xunitlength+border,-ymin*yunitlength+border]; |
|
2631 } |
|
2632 if (isIE) { |
|
2633 if (picture.FULLSCREEN==undefined) { |
|
2634 setTimeout('drawPictures()',50); |
|
2635 throw "wait"; |
|
2636 } |
|
2637 svgpicture = picture.getSVGDocument().getElementById("root"); |
|
2638 if (svgpicture==null) { |
|
2639 setTimeout('drawPictures()',50); |
|
2640 throw "wait"; |
|
2641 } |
|
2642 svgpicture = picture.getSVGDocument().getElementById("root"); |
|
2643 while (svgpicture.childNodes.length>0) |
|
2644 svgpicture.removeChild(svgpicture.lastChild); |
|
2645 svgpicture.setAttribute("width",width); |
|
2646 svgpicture.setAttribute("height",height); |
|
2647 svgpicture.setAttribute("name",picture.getAttribute("id")); |
|
2648 doc = picture.getSVGDocument(); |
|
2649 var nd = document.getElementById(picture.getAttribute("id")+"mml"); |
|
2650 if (nd!=null) // clear out MathML layer |
|
2651 while (nd.childNodes.length>0) nd.removeChild(nd.lastChild); |
|
2652 } else { |
|
2653 var qnode = document.createElementNS("http://www.w3.org/2000/svg","svg"); |
|
2654 qnode.setAttribute("id",picture.getAttribute("id")); |
|
2655 qnode.setAttribute("name",picture.getAttribute("id")); |
|
2656 qnode.setAttribute("style","display:inline"); |
|
2657 qnode.setAttribute("width",picture.getAttribute("width")); |
|
2658 qnode.setAttribute("height",picture.getAttribute("height")); |
|
2659 picturepos = findPos(picture); |
|
2660 qnode.setAttribute("left",picturepos[0]); |
|
2661 qnode.setAttribute("top",picturepos[1]); |
|
2662 // qnode.setAttribute("xmlns:xlink","http://www.w3.org/1999/xlink"); |
|
2663 if (picture.parentNode!=null) { |
|
2664 picture.parentNode.replaceChild(qnode,picture); |
|
2665 } else { |
|
2666 svgpicture.parentNode.replaceChild(qnode,svgpicture); |
|
2667 } |
|
2668 svgpicture = qnode; |
|
2669 doc = document; |
|
2670 } |
|
2671 svgpicture.setAttribute("xunitlength",xunitlength); |
|
2672 svgpicture.setAttribute("yunitlength",yunitlength); |
|
2673 svgpicture.setAttribute("xmin",xmin); |
|
2674 svgpicture.setAttribute("xmax",xmax); |
|
2675 svgpicture.setAttribute("ymin",ymin); |
|
2676 svgpicture.setAttribute("ymax",ymax); |
|
2677 svgpicture.setAttribute("ox",origin[0]); |
|
2678 svgpicture.setAttribute("oy",origin[1]); |
|
2679 var node = myCreateElementSVG("rect"); |
|
2680 node.setAttribute("x","0"); |
|
2681 node.setAttribute("y","0"); |
|
2682 node.setAttribute("width",width); |
|
2683 node.setAttribute("height",height); |
|
2684 node.setAttribute("style",backgroundstyle); |
|
2685 svgpicture.appendChild(node); |
|
2686 svgpicture.setAttribute("onmousemove","displayCoord(evt)"); |
|
2687 svgpicture.setAttribute("onmouseout","removeCoord(evt)"); |
|
2688 svgpicture.setAttribute("onclick","mClick(evt)"); |
|
2689 node = myCreateElementSVG("text"); |
|
2690 node.appendChild(doc.createTextNode(" ")); |
|
2691 svgpicture.appendChild(node); |
|
2692 border = defaultborder; |
|
2693 } |
|
2694 } |
|
2695 } |
|
2696 |
|
2697 //////////////////////////user graphics commands start///////////////////////// |
|
2698 |
|
2699 function line(p,q,id,endpts) { // segment connecting points p,q (coordinates in units) |
|
2700 var node; |
|
2701 if (id!=null) node = doc.getElementById(id); |
|
2702 if (node==null) { |
|
2703 node = myCreateElementSVG("path"); |
|
2704 node.setAttribute("id", id); |
|
2705 svgpicture.appendChild(node); |
|
2706 } |
|
2707 node.setAttribute("d","M"+(p[0]*xunitlength+origin[0])+","+ |
|
2708 (height-p[1]*yunitlength-origin[1])+" "+ |
|
2709 (q[0]*xunitlength+origin[0])+","+(height-q[1]*yunitlength-origin[1])); |
|
2710 node.setAttribute("stroke-width", strokewidth); |
|
2711 if (strokedasharray!=null) |
|
2712 node.setAttribute("stroke-dasharray", strokedasharray); |
|
2713 node.setAttribute("stroke", stroke); |
|
2714 node.setAttribute("fill", fill); |
|
2715 node.setAttribute("stroke-opacity", strokeopacity); |
|
2716 node.setAttribute("fill-opacity", fillopacity); |
|
2717 if (marker=="dot" || marker=="arrowdot") { |
|
2718 ASdot(p,markersize,markerstroke,markerfill); |
|
2719 if (marker=="arrowdot") arrowhead(p,q); |
|
2720 ASdot(q,markersize,markerstroke,markerfill); |
|
2721 } else if (marker=="arrow") arrowhead(p,q); |
|
2722 if (endpts==null && endpoints!="") endpts = endpoints; |
|
2723 if (endpts!=null) { |
|
2724 if (endpts.indexOf("<-") != -1) arrowhead(q,p); |
|
2725 if (endpts.indexOf("o-") != -1) dot(p, "open"); |
|
2726 if (endpts.indexOf("*-") != -1) dot(p, "closed"); |
|
2727 if (endpts.indexOf("->") != -1) arrowhead(p,q); |
|
2728 if (endpts.indexOf("-o") != -1) dot(q, "open"); |
|
2729 if (endpts.indexOf("-*") != -1) dot(q, "closed"); |
|
2730 } |
|
2731 } |
|
2732 |
|
2733 function path(plist,id,c,endpts) { |
|
2734 if (c==null) c=""; |
|
2735 var node, st, i; |
|
2736 if (id!=null) node = doc.getElementById(id); |
|
2737 if (node==null) { |
|
2738 node = myCreateElementSVG("path"); |
|
2739 node.setAttribute("id", id); |
|
2740 svgpicture.appendChild(node); |
|
2741 } |
|
2742 if (typeof plist == "string") st = plist; |
|
2743 else { |
|
2744 st = "M"; |
|
2745 st += (plist[0][0]*xunitlength+origin[0])+","+ |
|
2746 (height-plist[0][1]*yunitlength-origin[1])+" "+c; |
|
2747 for (i=1; i<plist.length; i++) |
|
2748 st += (plist[i][0]*xunitlength+origin[0])+","+ |
|
2749 (height-plist[i][1]*yunitlength-origin[1])+" "; |
|
2750 } |
|
2751 node.setAttribute("d", st); |
|
2752 node.setAttribute("stroke-width", strokewidth); |
|
2753 if (strokedasharray!=null) |
|
2754 node.setAttribute("stroke-dasharray", strokedasharray); |
|
2755 node.setAttribute("stroke", stroke); |
|
2756 node.setAttribute("fill", fill); |
|
2757 node.setAttribute("stroke-opacity", strokeopacity); |
|
2758 node.setAttribute("fill-opacity", fillopacity); |
|
2759 if (marker=="dot" || marker=="arrowdot") |
|
2760 for (i=0; i<plist.length; i++) |
|
2761 if (c!="C" && c!="T" || i!=1 && i!=2) |
|
2762 ASdot(plist[i],markersize,markerstroke,markerfill); |
|
2763 if (endpts==null && endpoints!="") endpts = endpoints; |
|
2764 if (endpts!=null) { |
|
2765 if (endpts.indexOf("<-") != -1) arrowhead(plist[1],plist[0]); |
|
2766 if (endpts.indexOf("o-") != -1) dot(plist[0], "open"); |
|
2767 if (endpts.indexOf("*-") != -1) dot(plist[0], "closed"); |
|
2768 if (endpts.indexOf("->") != -1) arrowhead(plist[plist.length-2],plist[plist.length-1]); |
|
2769 if (endpts.indexOf("-o") != -1) dot(plist[plist.length-1], "open"); |
|
2770 if (endpts.indexOf("-*") != -1) dot(plist[plist.length-1], "closed"); |
|
2771 } |
|
2772 } |
|
2773 |
|
2774 function curve(plist,id,endpts) { |
|
2775 path(plist,id,"T",endpts); |
|
2776 } |
|
2777 |
|
2778 function vector(p,q,id) { |
|
2779 line(p,q,id,"","->"); |
|
2780 } |
|
2781 |
|
2782 function circle(center,radius,id) { // coordinates in units |
|
2783 var node; |
|
2784 if (id!=null) node = doc.getElementById(id); |
|
2785 if (node==null) { |
|
2786 node = myCreateElementSVG("circle"); |
|
2787 node.setAttribute("id", id); |
|
2788 svgpicture.appendChild(node); |
|
2789 } |
|
2790 node.setAttribute("cx",center[0]*xunitlength+origin[0]); |
|
2791 node.setAttribute("cy",height-center[1]*yunitlength-origin[1]); |
|
2792 node.setAttribute("r",radius*xunitlength); |
|
2793 node.setAttribute("stroke-width", strokewidth); |
|
2794 node.setAttribute("stroke", stroke); |
|
2795 node.setAttribute("fill", fill); |
|
2796 node.setAttribute("stroke-opacity", strokeopacity); |
|
2797 node.setAttribute("fill-opacity", fillopacity); |
|
2798 } |
|
2799 |
|
2800 function loop(p,d,id) { |
|
2801 // d is a direction vector e.g. [1,0] means loop starts in that direction |
|
2802 if (d==null) d=[1,0]; |
|
2803 path([p,[p[0]+d[0],p[1]+d[1]],[p[0]-d[1],p[1]+d[0]],p],id,"C"); |
|
2804 if (marker=="arrow" || marker=="arrowdot") |
|
2805 arrowhead([p[0]+Math.cos(1.4)*d[0]-Math.sin(1.4)*d[1], |
|
2806 p[1]+Math.sin(1.4)*d[0]+Math.cos(1.4)*d[1]],p); |
|
2807 } |
|
2808 |
|
2809 function arc(start,end,radius,id) { // coordinates in units |
|
2810 var node, v; |
|
2811 //alert([fill, stroke, origin, xunitlength, yunitlength, height]) |
|
2812 if (id!=null) node = doc.getElementById(id); |
|
2813 if (radius==null) { |
|
2814 v=[end[0]-start[0],end[1]-start[1]]; |
|
2815 radius = Math.sqrt(v[0]*v[0]+v[1]*v[1]); |
|
2816 } |
|
2817 if (node==null) { |
|
2818 node = myCreateElementSVG("path"); |
|
2819 node.setAttribute("id", id); |
|
2820 svgpicture.appendChild(node); |
|
2821 } |
|
2822 node.setAttribute("d","M"+(start[0]*xunitlength+origin[0])+","+ |
|
2823 (height-start[1]*yunitlength-origin[1])+" A"+radius*xunitlength+","+ |
|
2824 radius*yunitlength+" 0 0,0 "+(end[0]*xunitlength+origin[0])+","+ |
|
2825 (height-end[1]*yunitlength-origin[1])); |
|
2826 node.setAttribute("stroke-width", strokewidth); |
|
2827 node.setAttribute("stroke", stroke); |
|
2828 node.setAttribute("fill", fill); |
|
2829 node.setAttribute("stroke-opacity", strokeopacity); |
|
2830 node.setAttribute("fill-opacity", fillopacity); |
|
2831 if (marker=="arrow" || marker=="arrowdot") { |
|
2832 u = [(end[1]-start[1])/4,(start[0]-end[0])/4]; |
|
2833 v = [(end[0]-start[0])/2,(end[1]-start[1])/2]; |
|
2834 //alert([u,v]) |
|
2835 v = [start[0]+v[0]+u[0],start[1]+v[1]+u[1]]; |
|
2836 } else v=[start[0],start[1]]; |
|
2837 if (marker=="dot" || marker=="arrowdot") { |
|
2838 ASdot(start,markersize,markerstroke,markerfill); |
|
2839 if (marker=="arrowdot") arrowhead(v,end); |
|
2840 ASdot(end,markersize,markerstroke,markerfill); |
|
2841 } else if (marker=="arrow") arrowhead(v,end); |
|
2842 } |
|
2843 |
|
2844 function sector(center,start,end,id) { // center,start,end should be isoceles |
|
2845 var rx = start[0]-center[0], ry = start[1]-center[1]; |
|
2846 arc(start,end,Math.sqrt(rx*rx+ry*ry),id+"arc"); |
|
2847 path([end,center,start],id+"path"); |
|
2848 } |
|
2849 |
|
2850 function ellipse(center,rx,ry,id) { // coordinates in units |
|
2851 var node; |
|
2852 if (id!=null) node = doc.getElementById(id); |
|
2853 if (node==null) { |
|
2854 node = myCreateElementSVG("ellipse"); |
|
2855 node.setAttribute("id", id); |
|
2856 svgpicture.appendChild(node); |
|
2857 } |
|
2858 node.setAttribute("cx",center[0]*xunitlength+origin[0]); |
|
2859 node.setAttribute("cy",height-center[1]*yunitlength-origin[1]); |
|
2860 node.setAttribute("rx",rx*xunitlength); |
|
2861 node.setAttribute("ry",ry*yunitlength); |
|
2862 node.setAttribute("stroke-width", strokewidth); |
|
2863 node.setAttribute("stroke", stroke); |
|
2864 node.setAttribute("fill", fill); |
|
2865 node.setAttribute("stroke-opacity", strokeopacity); |
|
2866 node.setAttribute("fill-opacity", fillopacity); |
|
2867 } |
|
2868 |
|
2869 function triangle(p,q,r,id) { |
|
2870 path([p,q,r,p],id) |
|
2871 } |
|
2872 |
|
2873 function rect(p,q,id,rx,ry) { // opposite corners in units, rounded by radii |
|
2874 var node; |
|
2875 if (id!=null) node = doc.getElementById(id); |
|
2876 if (node==null) { |
|
2877 node = myCreateElementSVG("rect"); |
|
2878 node.setAttribute("id", id); |
|
2879 svgpicture.appendChild(node); |
|
2880 } |
|
2881 node.setAttribute("x",p[0]*xunitlength+origin[0]); |
|
2882 node.setAttribute("y",height-q[1]*yunitlength-origin[1]); |
|
2883 node.setAttribute("width",(q[0]-p[0])*xunitlength); |
|
2884 node.setAttribute("height",(q[1]-p[1])*yunitlength); |
|
2885 if (rx!=null) node.setAttribute("rx",rx*xunitlength); |
|
2886 if (ry!=null) node.setAttribute("ry",ry*yunitlength); |
|
2887 node.setAttribute("stroke-width", strokewidth); |
|
2888 node.setAttribute("stroke", stroke); |
|
2889 node.setAttribute("fill", fill); |
|
2890 node.setAttribute("stroke-opacity", strokeopacity); |
|
2891 node.setAttribute("fill-opacity", fillopacity); |
|
2892 } |
|
2893 |
|
2894 function text(p,st,pos,id,fontsty) { |
|
2895 var dnode, node, dx = 0, dy = fontsize/3; |
|
2896 if (/(`|\$)/.test(st)) { // layer for ASCIIMathML and LaTeXMathML |
|
2897 dnode = document.getElementById(svgpicture.getAttribute("name")+"mml"); |
|
2898 if (dnode!=null) { |
|
2899 if (id!=null) node = document.getElementById(id); |
|
2900 if (node==null) { |
|
2901 //alert(dnode.childNodes.length) |
|
2902 node = myCreateElementXHTML("div"); |
|
2903 node.setAttribute("id", id); |
|
2904 node.style.position = "absolute"; |
|
2905 dnode.appendChild(node); |
|
2906 } |
|
2907 while (node.childNodes.length>0) node.removeChild(node.lastChild); |
|
2908 node.appendChild(document.createTextNode(st)); |
|
2909 // node.lastChild.nodeValue = st; |
|
2910 node.style.left = ""+(p[0]*xunitlength+origin[0])+"px"; |
|
2911 node.style.top = ""+(height-p[1]*yunitlength-origin[1])+"px"; |
|
2912 if (/`/.test(st)) AMprocessNode(node); else LMprocessNode(node); |
|
2913 dx = -node.offsetWidth/2; |
|
2914 dy = -node.offsetHeight/2; |
|
2915 if (pos!=null) { |
|
2916 if (/above/.test(pos)) dy = -node.offsetHeight; |
|
2917 if (/below/.test(pos)) dy = 0; |
|
2918 if (/right/.test(pos)) dx = 0; |
|
2919 if ( /left/.test(pos)) dx = -node.offsetWidth; |
|
2920 } |
|
2921 node.style.left = ""+(p[0]*xunitlength+origin[0]+dx)+"px"; |
|
2922 node.style.top = ""+(height-p[1]*yunitlength-origin[1]+dy)+"px"; |
|
2923 } |
|
2924 return p; |
|
2925 } |
|
2926 var textanchor = "middle"; // regular text goes into SVG |
|
2927 if (pos!=null) { |
|
2928 if (/above/.test(pos)) dy = -fontsize/2; |
|
2929 if (/below/.test(pos)) dy = fontsize-0; |
|
2930 if (/right/.test(pos)) {textanchor = "start"; dx = fontsize/4;} |
|
2931 if ( /left/.test(pos)) {textanchor = "end"; dx = -fontsize/4;} |
|
2932 } |
|
2933 if (id!=null) node = doc.getElementById(id); |
|
2934 if (node==null) { |
|
2935 node = myCreateElementSVG("text"); |
|
2936 node.setAttribute("id", id); |
|
2937 svgpicture.appendChild(node); |
|
2938 node.appendChild(doc.createTextNode(st)); |
|
2939 } |
|
2940 while (node.childNodes.length>1) node.removeChild(node.lastChild); |
|
2941 // node.appendChild(document.createTextNode("\xA0"+st+"\xA0")); |
|
2942 //alert("here"); |
|
2943 node.lastChild.nodeValue = "\xA0"+st+"\xA0"; |
|
2944 node.setAttribute("x",p[0]*xunitlength+origin[0]+dx); |
|
2945 node.setAttribute("y",height-p[1]*yunitlength-origin[1]+dy); |
|
2946 node.setAttribute("font-style",(fontsty!=null?fontsty: |
|
2947 (st.search(/^[a-zA-Z]$/)!=-1?"italic":fontstyle))); |
|
2948 node.setAttribute("font-family",fontfamily); |
|
2949 node.setAttribute("font-size",fontsize); |
|
2950 node.setAttribute("font-weight",fontweight); |
|
2951 node.setAttribute("text-anchor",textanchor); |
|
2952 if (fontstroke!="none") node.setAttribute("stroke",fontstroke); |
|
2953 if (fontfill!="none") node.setAttribute("fill",fontfill); |
|
2954 return p; |
|
2955 } |
|
2956 |
|
2957 function mtext(p,st,pos,fontsty) { // method for updating text on an svg |
|
2958 // "this" is the text object or the svgpicture object |
|
2959 var textanchor = "middle"; |
|
2960 var dx = 0; var dy = fontsize/3; |
|
2961 if (pos!=null) { |
|
2962 if (pos.slice(0,5)=="above") dy = -fontsize/2; |
|
2963 if (pos.slice(0,5)=="below") dy = fontsize-0; |
|
2964 if (pos.slice(0,5)=="right" || pos.slice(5,10)=="right") { |
|
2965 textanchor = "start"; |
|
2966 dx = fontsize/2; |
|
2967 } |
|
2968 if (pos.slice(0,4)=="left" || pos.slice(5,9)=="left") { |
|
2969 textanchor = "end"; |
|
2970 dx = -fontsize/2; |
|
2971 } |
|
2972 } |
|
2973 var node = this; |
|
2974 if (this.nodeName=="svg") { |
|
2975 node = myCreateElementSVG("text"); |
|
2976 this.appendChild(node); |
|
2977 node.appendChild(doc.createTextNode(st)); |
|
2978 } |
|
2979 node.lastChild.nodeValue = st; |
|
2980 node.setAttribute("x",p[0]+dx); |
|
2981 node.setAttribute("y",p[1]+dy); |
|
2982 node.setAttribute("font-style",(fontsty!=null?fontsty:fontstyle)); |
|
2983 node.setAttribute("font-family",fontfamily); |
|
2984 node.setAttribute("font-size",fontsize); |
|
2985 node.setAttribute("font-weight",fontweight); |
|
2986 node.setAttribute("text-anchor",textanchor); |
|
2987 if (fontstroke!="none") node.setAttribute("stroke",fontstroke); |
|
2988 if (fontfill!="none") node.setAttribute("fill",fontfill); |
|
2989 } |
|
2990 |
|
2991 function image(imgurl,p,w,h,id) { // not working yet |
|
2992 var node; |
|
2993 if (id!=null) node = doc.getElementById(id); |
|
2994 if (node==null) { |
|
2995 node = myCreateElementSVG("image"); |
|
2996 node.setAttribute("id", id); |
|
2997 svgpicture.appendChild(node); |
|
2998 } |
|
2999 node.setAttribute("x",p[0]*xunitlength+origin[0]); |
|
3000 node.setAttribute("y",height-p[1]*yunitlength-origin[1]); |
|
3001 node.setAttribute("width",w); |
|
3002 node.setAttribute("height",h); |
|
3003 node.setAttribute("xlink:href", imgurl); |
|
3004 } |
|
3005 |
|
3006 function ASdot(center,radius,s,f) { // coordinates in units, radius in pixel |
|
3007 if (s==null) s = stroke; if (f==null) f = fill; |
|
3008 var node = myCreateElementSVG("circle"); |
|
3009 node.setAttribute("cx",center[0]*xunitlength+origin[0]); |
|
3010 node.setAttribute("cy",height-center[1]*yunitlength-origin[1]); |
|
3011 node.setAttribute("r",radius); |
|
3012 node.setAttribute("stroke-width", strokewidth); |
|
3013 node.setAttribute("stroke", s); |
|
3014 node.setAttribute("fill", f); |
|
3015 svgpicture.appendChild(node); |
|
3016 } |
|
3017 |
|
3018 function dot(center, typ, label, pos, id) { |
|
3019 var node; |
|
3020 var cx = center[0]*xunitlength+origin[0]; |
|
3021 var cy = height-center[1]*yunitlength-origin[1]; |
|
3022 if (id!=null) node = doc.getElementById(id); |
|
3023 if (typ=="+" || typ=="-" || typ=="|") { |
|
3024 if (node==null) { |
|
3025 node = myCreateElementSVG("path"); |
|
3026 node.setAttribute("id", id); |
|
3027 svgpicture.appendChild(node); |
|
3028 } |
|
3029 if (typ=="+") { |
|
3030 node.setAttribute("d", |
|
3031 " M "+(cx-ticklength)+" "+cy+" L "+(cx+ticklength)+" "+cy+ |
|
3032 " M "+cx+" "+(cy-ticklength)+" L "+cx+" "+(cy+ticklength)); |
|
3033 node.setAttribute("stroke-width", .5); |
|
3034 node.setAttribute("stroke", axesstroke); |
|
3035 } else { |
|
3036 if (typ=="-") node.setAttribute("d", |
|
3037 " M "+(cx-ticklength)+" "+cy+" L "+(cx+ticklength)+" "+cy); |
|
3038 else node.setAttribute("d", |
|
3039 " M "+cx+" "+(cy-ticklength)+" L "+cx+" "+(cy+ticklength)); |
|
3040 node.setAttribute("stroke-width", strokewidth); |
|
3041 node.setAttribute("stroke", stroke); |
|
3042 } |
|
3043 } else { |
|
3044 if (node==null) { |
|
3045 node = myCreateElementSVG("circle"); |
|
3046 node.setAttribute("id", id); |
|
3047 svgpicture.appendChild(node); |
|
3048 } |
|
3049 node.setAttribute("cx",cx); |
|
3050 node.setAttribute("cy",cy); |
|
3051 node.setAttribute("r",dotradius); |
|
3052 node.setAttribute("stroke-width", strokewidth); |
|
3053 node.setAttribute("stroke", stroke); |
|
3054 node.setAttribute("fill", (typ=="open"?"white": |
|
3055 (typ=="closed"?stroke:markerfill))); |
|
3056 } |
|
3057 if (label!=null) |
|
3058 text(center,label,(pos==null?"below":pos),(id==null?id:id+"label")) |
|
3059 } |
|
3060 |
|
3061 point = dot; //alternative name |
|
3062 |
|
3063 function arrowhead(p,q) { // draw arrowhead at q (in units) add size param |
|
3064 var up; |
|
3065 var v = [p[0]*xunitlength+origin[0],height-p[1]*yunitlength-origin[1]]; |
|
3066 var w = [q[0]*xunitlength+origin[0],height-q[1]*yunitlength-origin[1]]; |
|
3067 var u = [w[0]-v[0],w[1]-v[1]]; |
|
3068 var d = Math.sqrt(u[0]*u[0]+u[1]*u[1]); |
|
3069 if (d > 0.00000001) { |
|
3070 u = [u[0]/d, u[1]/d]; |
|
3071 up = [-u[1],u[0]]; |
|
3072 var node = myCreateElementSVG("path"); |
|
3073 node.setAttribute("d","M "+(w[0]-15*u[0]-4*up[0])+" "+ |
|
3074 (w[1]-15*u[1]-4*up[1])+" L "+(w[0]-3*u[0])+" "+(w[1]-3*u[1])+" L "+ |
|
3075 (w[0]-15*u[0]+4*up[0])+" "+(w[1]-15*u[1]+4*up[1])+" z"); |
|
3076 node.setAttribute("stroke-width", markerstrokewidth); |
|
3077 node.setAttribute("stroke", stroke); /*was markerstroke*/ |
|
3078 node.setAttribute("fill", stroke); /*was arrowfill*/ |
|
3079 node.setAttribute("stroke-opacity", strokeopacity); |
|
3080 node.setAttribute("fill-opacity", fillopacity); |
|
3081 svgpicture.appendChild(node); |
|
3082 } |
|
3083 } |
|
3084 |
|
3085 function chopZ(st) { |
|
3086 var k = st.indexOf("."); |
|
3087 if (k==-1) return st; |
|
3088 for (var i=st.length-1; i>k && st.charAt(i)=="0"; i--); |
|
3089 if (i==k) i--; |
|
3090 return st.slice(0,i+1); |
|
3091 } |
|
3092 |
|
3093 function grid(dx,dy) { // for backward compatibility |
|
3094 axes(dx,dy,null,dx,dy) |
|
3095 } |
|
3096 |
|
3097 function noaxes() { |
|
3098 if (!initialized) initPicture(); |
|
3099 } |
|
3100 |
|
3101 function axes(dx,dy,labels,gdx,gdy) { |
|
3102 //xscl=x is equivalent to xtick=x; xgrid=x; labels=true; |
|
3103 var x, y, ldx, ldy, lx, ly, lxp, lyp, pnode, st; |
|
3104 if (!initialized) initPicture(); |
|
3105 if (typeof dx=="string") { labels = dx; dx = null; } |
|
3106 if (typeof dy=="string") { gdx = dy; dy = null; } |
|
3107 if (xscl!=null) {dx = xscl; gdx = xscl; labels = dx} |
|
3108 if (yscl!=null) {dy = yscl; gdy = yscl} |
|
3109 if (xtick!=null) {dx = xtick} |
|
3110 if (ytick!=null) {dy = ytick} |
|
3111 dx = (dx==null?xunitlength:dx*xunitlength); |
|
3112 dy = (dy==null?dx:dy*yunitlength); |
|
3113 fontsize = Math.min(dx/2,dy/2,16); //alert(fontsize) |
|
3114 ticklength = fontsize/4; |
|
3115 if (xgrid!=null) gdx = xgrid; |
|
3116 if (ygrid!=null) gdy = ygrid; |
|
3117 if (gdx!=null) { |
|
3118 gdx = (typeof gdx=="string"?dx:gdx*xunitlength); |
|
3119 gdy = (gdy==null?dy:gdy*yunitlength); |
|
3120 pnode = myCreateElementSVG("path"); |
|
3121 st=""; |
|
3122 for (x = origin[0]; x<width; x = x+gdx) |
|
3123 st += " M"+x+",0"+" "+x+","+height; |
|
3124 for (x = origin[0]-gdx; x>0; x = x-gdx) |
|
3125 st += " M"+x+",0"+" "+x+","+height; |
|
3126 for (y = height-origin[1]; y<height; y = y+gdy) |
|
3127 st += " M0,"+y+" "+width+","+y; |
|
3128 for (y = height-origin[1]-gdy; y>0; y = y-gdy) |
|
3129 st += " M0,"+y+" "+width+","+y; |
|
3130 pnode.setAttribute("d",st); |
|
3131 pnode.setAttribute("stroke-width", .5); |
|
3132 pnode.setAttribute("stroke", gridstroke); |
|
3133 pnode.setAttribute("fill", fill); |
|
3134 svgpicture.appendChild(pnode); |
|
3135 } |
|
3136 pnode = myCreateElementSVG("path"); |
|
3137 st="M0,"+(height-origin[1])+" "+width+","+ |
|
3138 (height-origin[1])+" M"+origin[0]+",0 "+origin[0]+","+height; |
|
3139 for (x = origin[0]+dx; x<width; x = x+dx) |
|
3140 st += " M"+x+","+(height-origin[1]+ticklength)+" "+x+","+ |
|
3141 (height-origin[1]-ticklength); |
|
3142 for (x = origin[0]-dx; x>0; x = x-dx) |
|
3143 st += " M"+x+","+(height-origin[1]+ticklength)+" "+x+","+ |
|
3144 (height-origin[1]-ticklength); |
|
3145 for (y = height-origin[1]+dy; y<height; y = y+dy) |
|
3146 st += " M"+(origin[0]+ticklength)+","+y+" "+(origin[0]-ticklength)+","+y; |
|
3147 for (y = height-origin[1]-dy; y>0; y = y-dy) |
|
3148 st += " M"+(origin[0]+ticklength)+","+y+" "+(origin[0]-ticklength)+","+y; |
|
3149 if (labels!=null) with (Math) { |
|
3150 ldx = dx/xunitlength; |
|
3151 ldy = dy/yunitlength; |
|
3152 lx = (xmin>0 || xmax<0?xmin:0); |
|
3153 ly = (ymin>0 || ymax<0?ymin:0); |
|
3154 lxp = (ly==0?"below":"above"); |
|
3155 lyp = (lx==0?"left":"right"); |
|
3156 var ddx = floor(1.1-log(ldx)/log(10))+1; |
|
3157 var ddy = floor(1.1-log(ldy)/log(10))+1; |
|
3158 for (x = ldx; x<=xmax; x = x+ldx) |
|
3159 text([x,ly],chopZ(x.toFixed(ddx)),lxp); |
|
3160 for (x = -ldx; xmin<=x; x = x-ldx) |
|
3161 text([x,ly],chopZ(x.toFixed(ddx)),lxp); |
|
3162 for (y = ldy; y<=ymax; y = y+ldy) |
|
3163 text([lx,y],chopZ(y.toFixed(ddy)),lyp); |
|
3164 for (y = -ldy; ymin<=y; y = y-ldy) |
|
3165 text([lx,y],chopZ(y.toFixed(ddy)),lyp); |
|
3166 } |
|
3167 fontsize = defaultfontsize; |
|
3168 pnode.setAttribute("d",st); |
|
3169 pnode.setAttribute("stroke-width", .5); |
|
3170 pnode.setAttribute("stroke", axesstroke); |
|
3171 pnode.setAttribute("fill", fill); |
|
3172 pnode.setAttribute("stroke-opacity", strokeopacity); |
|
3173 pnode.setAttribute("fill-opacity", fillopacity); |
|
3174 svgpicture.appendChild(pnode); |
|
3175 } |
|
3176 |
|
3177 function mathjs(st) { |
|
3178 //translate a math formula to js function notation |
|
3179 // a^b --> pow(a,b) |
|
3180 // na --> n*a |
|
3181 // (...)d --> (...)*d |
|
3182 // n! --> factorial(n) |
|
3183 // sin^-1 --> arcsin etc. |
|
3184 //while ^ in string, find term on left and right |
|
3185 //slice and concat new formula string |
|
3186 st = st.replace(/\s/g,""); |
|
3187 if (st.indexOf("^-1")!=-1) { |
|
3188 st = st.replace(/sin\^-1/g,"arcsin"); |
|
3189 st = st.replace(/cos\^-1/g,"arccos"); |
|
3190 st = st.replace(/tan\^-1/g,"arctan"); |
|
3191 st = st.replace(/sec\^-1/g,"arcsec"); |
|
3192 st = st.replace(/csc\^-1/g,"arccsc"); |
|
3193 st = st.replace(/cot\^-1/g,"arccot"); |
|
3194 st = st.replace(/sinh\^-1/g,"arcsinh"); |
|
3195 st = st.replace(/cosh\^-1/g,"arccosh"); |
|
3196 st = st.replace(/tanh\^-1/g,"arctanh"); |
|
3197 st = st.replace(/sech\^-1/g,"arcsech"); |
|
3198 st = st.replace(/csch\^-1/g,"arccsch"); |
|
3199 st = st.replace(/coth\^-1/g,"arccoth"); |
|
3200 } |
|
3201 st = st.replace(/^e$/g,"(Math.E)"); |
|
3202 st = st.replace(/^e([^a-zA-Z])/g,"(Math.E)$1"); |
|
3203 st = st.replace(/([^a-zA-Z])e/g,"$1(Math.E)"); |
|
3204 // st = st.replace(/([^a-zA-Z])e([^a-zA-Z])/g,"$1(Math.E)$2"); |
|
3205 st = st.replace(/([0-9])([\(a-zA-Z])/g,"$1*$2"); |
|
3206 st = st.replace(/\)([\(0-9a-zA-Z])/g,"\)*$1"); |
|
3207 var i,j,k, ch, nested; |
|
3208 while ((i=st.indexOf("^"))!=-1) { |
|
3209 //find left argument |
|
3210 if (i==0) return "Error: missing argument"; |
|
3211 j = i-1; |
|
3212 ch = st.charAt(j); |
|
3213 if (ch>="0" && ch<="9") {// look for (decimal) number |
|
3214 j--; |
|
3215 while (j>=0 && (ch=st.charAt(j))>="0" && ch<="9") j--; |
|
3216 if (ch==".") { |
|
3217 j--; |
|
3218 while (j>=0 && (ch=st.charAt(j))>="0" && ch<="9") j--; |
|
3219 } |
|
3220 } else if (ch==")") {// look for matching opening bracket and function name |
|
3221 nested = 1; |
|
3222 j--; |
|
3223 while (j>=0 && nested>0) { |
|
3224 ch = st.charAt(j); |
|
3225 if (ch=="(") nested--; |
|
3226 else if (ch==")") nested++; |
|
3227 j--; |
|
3228 } |
|
3229 while (j>=0 && (ch=st.charAt(j))>="a" && ch<="z" || ch>="A" && ch<="Z") |
|
3230 j--; |
|
3231 } else if (ch>="a" && ch<="z" || ch>="A" && ch<="Z") {// look for variable |
|
3232 j--; |
|
3233 while (j>=0 && (ch=st.charAt(j))>="a" && ch<="z" || ch>="A" && ch<="Z") |
|
3234 j--; |
|
3235 } else { |
|
3236 return "Error: incorrect syntax in "+st+" at position "+j; |
|
3237 } |
|
3238 //find right argument |
|
3239 if (i==st.length-1) return "Error: missing argument"; |
|
3240 k = i+1; |
|
3241 ch = st.charAt(k); |
|
3242 if (ch>="0" && ch<="9" || ch=="-") {// look for signed (decimal) number |
|
3243 k++; |
|
3244 while (k<st.length && (ch=st.charAt(k))>="0" && ch<="9") k++; |
|
3245 if (ch==".") { |
|
3246 k++; |
|
3247 while (k<st.length && (ch=st.charAt(k))>="0" && ch<="9") k++; |
|
3248 } |
|
3249 } else if (ch=="(") {// look for matching closing bracket and function name |
|
3250 nested = 1; |
|
3251 k++; |
|
3252 while (k<st.length && nested>0) { |
|
3253 ch = st.charAt(k); |
|
3254 if (ch=="(") nested++; |
|
3255 else if (ch==")") nested--; |
|
3256 k++; |
|
3257 } |
|
3258 } else if (ch>="a" && ch<="z" || ch>="A" && ch<="Z") {// look for variable |
|
3259 k++; |
|
3260 while (k<st.length && (ch=st.charAt(k))>="a" && ch<="z" || |
|
3261 ch>="A" && ch<="Z") k++; |
|
3262 } else { |
|
3263 return "Error: incorrect syntax in "+st+" at position "+k; |
|
3264 } |
|
3265 st = st.slice(0,j+1)+"Math.pow("+st.slice(j+1,i)+","+st.slice(i+1,k)+")"+ |
|
3266 st.slice(k); |
|
3267 } |
|
3268 while ((i=st.indexOf("!"))!=-1) { |
|
3269 //find left argument |
|
3270 if (i==0) return "Error: missing argument"; |
|
3271 j = i-1; |
|
3272 ch = st.charAt(j); |
|
3273 if (ch>="0" && ch<="9") {// look for (decimal) number |
|
3274 j--; |
|
3275 while (j>=0 && (ch=st.charAt(j))>="0" && ch<="9") j--; |
|
3276 if (ch==".") { |
|
3277 j--; |
|
3278 while (j>=0 && (ch=st.charAt(j))>="0" && ch<="9") j--; |
|
3279 } |
|
3280 } else if (ch==")") {// look for matching opening bracket and function name |
|
3281 nested = 1; |
|
3282 j--; |
|
3283 while (j>=0 && nested>0) { |
|
3284 ch = st.charAt(j); |
|
3285 if (ch=="(") nested--; |
|
3286 else if (ch==")") nested++; |
|
3287 j--; |
|
3288 } |
|
3289 while (j>=0 && (ch=st.charAt(j))>="a" && ch<="z" || ch>="A" && ch<="Z") |
|
3290 j--; |
|
3291 } else if (ch>="a" && ch<="z" || ch>="A" && ch<="Z") {// look for variable |
|
3292 j--; |
|
3293 while (j>=0 && (ch=st.charAt(j))>="a" && ch<="z" || ch>="A" && ch<="Z") |
|
3294 j--; |
|
3295 } else { |
|
3296 return "Error: incorrect syntax in "+st+" at position "+j; |
|
3297 } |
|
3298 st = st.slice(0,j+1)+"factorial("+st.slice(j+1,i)+")"+st.slice(i+1); |
|
3299 } |
|
3300 return st; |
|
3301 } |
|
3302 |
|
3303 function plot(fun,x_min,x_max,points,id,endpts) { |
|
3304 var pth = []; |
|
3305 var f = function(x) { return x }, g = fun; |
|
3306 var name = null; |
|
3307 if (typeof fun=="string") |
|
3308 eval("g = function(x){ with(Math) return "+mathjs(fun)+" }"); |
|
3309 else if (typeof fun=="object") { |
|
3310 eval("f = function(t){ with(Math) return "+mathjs(fun[0])+" }"); |
|
3311 eval("g = function(t){ with(Math) return "+mathjs(fun[1])+" }"); |
|
3312 } |
|
3313 if (typeof x_min=="string") { name = x_min; x_min = xmin } |
|
3314 else name = id; |
|
3315 var min = (x_min==null?xmin:x_min); |
|
3316 var max = (x_max==null?xmax:x_max); |
|
3317 var inc = max-min-0.000001*(max-min); |
|
3318 inc = (points==null?inc/200:inc/points); |
|
3319 var gt; |
|
3320 //alert(typeof g(min)) |
|
3321 for (var t = min; t <= max; t += inc) { |
|
3322 gt = g(t); |
|
3323 if (!(isNaN(gt)||Math.abs(gt)=="Infinity")) pth[pth.length] = [f(t), gt]; |
|
3324 } |
|
3325 path(pth,name,null,endpts); |
|
3326 return p; |
|
3327 } |
|
3328 |
|
3329 // make polar plot |
|
3330 |
|
3331 // make Riemann sums |
|
3332 |
|
3333 function slopefield(fun,dx,dy) { |
|
3334 var g = fun; |
|
3335 if (typeof fun=="string") |
|
3336 eval("g = function(x,y){ with(Math) return "+mathjs(fun)+" }"); |
|
3337 var gxy,x,y,u,v,dz; |
|
3338 if (dx==null) dx=1; |
|
3339 if (dy==null) dy=1; |
|
3340 dz = Math.sqrt(dx*dx+dy*dy)/6; |
|
3341 var x_min = Math.ceil(xmin/dx); |
|
3342 var y_min = Math.ceil(ymin/dy); |
|
3343 for (x = x_min; x <= xmax; x += dx) |
|
3344 for (y = y_min; y <= ymax; y += dy) { |
|
3345 gxy = g(x,y); |
|
3346 if (!isNaN(gxy)) { |
|
3347 if (Math.abs(gxy)=="Infinity") {u = 0; v = dz;} |
|
3348 else {u = dz/Math.sqrt(1+gxy*gxy); v = gxy*u;} |
|
3349 line([x-u,y-v],[x+u,y+v]); |
|
3350 } |
|
3351 } |
|
3352 } |
|
3353 |
|
3354 ///////////////////////user graphics commands end here///////////////////////// |
|
3355 |
|
3356 function show_props(obj) { |
|
3357 var result = ""; |
|
3358 for (var i=0; i< obj.childNodes.length; i++) |
|
3359 result += obj.childNodes.item(i) + "\n"; |
|
3360 return result; |
|
3361 } |
|
3362 |
|
3363 function displayCoord(evt) { |
|
3364 if (showcoordinates) { |
|
3365 //alert(show_props(evt.target.parentNode)) |
|
3366 var svgroot = evt.target.parentNode; |
|
3367 var nl = svgroot.childNodes; |
|
3368 for (var i=0; i<nl.length && nl.item(i).nodeName!="text"; i++); |
|
3369 var cnode = nl.item(i); |
|
3370 cnode.mtext = mtext; |
|
3371 cnode.mtext([svgroot.getAttribute("width")-0,svgroot.getAttribute("height")-0],"("+getX(evt).toFixed(2)+", "+getY(evt).toFixed(2)+")", "aboveleft", ""); |
|
3372 } |
|
3373 } |
|
3374 |
|
3375 function removeCoord(evt) { |
|
3376 var svgroot = evt.target.parentNode; |
|
3377 var nl = svgroot.childNodes; |
|
3378 for (var i=0; i<nl.length && nl.item(i).nodeName!="text"; i++); |
|
3379 var cnode = nl.item(i); |
|
3380 cnode.mtext = mtext; |
|
3381 cnode.mtext([svgroot.getAttribute("width")-0,svgroot.getAttribute("height")-0],"", "aboveleft", ""); |
|
3382 } |
|
3383 |
|
3384 function initASCIIMathCalculators(li) { |
|
3385 var i; |
|
3386 for (i=0; i<li.length; i++) { |
|
3387 li[i].innerHTML = calcstr; |
|
3388 AMprocessNode(li[i]); |
|
3389 } |
|
3390 li = document.getElementsByTagName("textarea"); |
|
3391 var st; |
|
3392 for (i=0; i<li.length; i++) { |
|
3393 st = li[i].getAttribute("onkeyup"); |
|
3394 if (st!=null) eval(String(st).replace(/function anonymous\(\)/,"")); |
|
3395 } |
|
3396 } |
|
3397 |
|
3398 function calculate(inputId,outputId) { |
|
3399 var str = document.getElementById(inputId).value; |
|
3400 var err = ""; |
|
3401 var ind = str.lastIndexOf("\n"); |
|
3402 if (ind==str.length-1) str = str.slice(0,ind); |
|
3403 str = str.slice(str.lastIndexOf("\n")+1); |
|
3404 try { |
|
3405 var res = eval(mathjs(str)); |
|
3406 } catch(e) { |
|
3407 err = "syntax incomplete"; |
|
3408 } |
|
3409 if (!isNaN(res) && res!="Infinity") |
|
3410 str = "`"+str+" =` "+(Math.abs(res-Math.round(res*1000000)/1000000)<1e-15?Math.round(res*1000000)/1000000:res)+err; |
|
3411 else if (str!="") str = "`"+str+"` = undefined"; //debug:+mathjs(str); |
|
3412 var outnode = document.getElementById(outputId); |
|
3413 var n = outnode.childNodes.length; |
|
3414 for (var i=0; i<n; i++) |
|
3415 outnode.removeChild(outnode.firstChild); |
|
3416 outnode.appendChild(document.createTextNode(str)); |
|
3417 AMprocessNode(outnode); |
|
3418 } |
|
3419 |
|
3420 function append(st){ |
|
3421 document.getElementById('in').value+=st; |
|
3422 calculate('in','out'); |
|
3423 document.getElementById('in').scrollTop = 1000; |
|
3424 document.getElementById('in').focus(); |
|
3425 } |
|
3426 |
|
3427 function clearTextArea(){ |
|
3428 document.getElementById('in').value=""; |
|
3429 calculate('in','out'); |
|
3430 document.getElementById('in').focus(); |
|
3431 } |
|
3432 |
|
3433 var calcstr = "<table align=\"center\">\n<tr><th>\nASCIIMath Scientific Calculator\n</th></tr>\n<tr><td>\nClick in the box to use your keyboard or use the buttons\n</td></tr>\n<tr><td>\n<textarea id=\"in\" rows=\"3\" cols=\"40\" onkeyup=\"calculate('in','out')\"></textarea></td></tr>\n<tr><td height=\"50\">Result: <span id=\"out\"></span></td></tr>\n</table>\n<table align=\"center\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody align=\"center\">\n<tr>\n<td colspan=\"4\">\n<button onclick=\"append('sin^-1(')\"><font size=2>`sin^-1`</font></button><button onclick=\"append('cos^-1(')\"><font size=2>`cos^-1`</font></button><button onclick=\"append('tan^-1(')\"><font size=2>`tan^-1`</font></button></td>\n<td><button onclick=\"clearTextArea()\"> `C` </button></td>\n\n</tr>\n<tr>\n<td><button onclick=\"append('pi')\"> `pi` </button></td>\n<td><button onclick=\"append('sin(')\"> `sin`</button></td>\n<td><button onclick=\"append('cos(')\"> `cos`</button></td>\n<td><button onclick=\"append('tan(')\"> `tan`</button></td>\n<td><button onclick=\"append('^')\">`x^y`</button></td>\n</tr>\n<tr>\n<td><button onclick=\"append('!')\"> `!` </button></td>\n\n<td><button onclick=\"append('(')\"><font size=2> `(` </font></button></td>\n<td><button onclick=\"append(')')\"><font size=2> `)` </font></button></td>\n<td><button onclick=\"append('sqrt(')\"><font size=2>`sqrt({::}^\ )`</font></button></td>\n<td><button onclick=\"append('/')\"> `-:\ `</button></td>\n</tr>\n<tr>\n<td><button onclick=\"append('log(')\">`log`</button></td>\n<td><button onclick=\"append('7')\"> `7` </button></td>\n<td><button onclick=\"append('8')\"> `8` </button></td>\n\n<td><button onclick=\"append('9')\"> `9` </button></td>\n<td><button onclick=\"append('*')\"> `times` </button></td>\n</tr>\n<tr>\n<td><button onclick=\"append('ln(')\"> `ln` </button></td>\n<td><button onclick=\"append('4')\"> `4` </button></td>\n<td><button onclick=\"append('5')\"> `5` </button></td>\n<td><button onclick=\"append('6')\"> `6` </button></td>\n\n<td><button onclick=\"append('-')\"> `-{::}` </button></td>\n</tr>\n<tr>\n<td><button onclick=\"append('e')\"> `e` </button></td>\n<td><button onclick=\"append('1')\"> `1` </button></td>\n<td><button onclick=\"append('2')\"> `2` </button></td>\n<td><button onclick=\"append('3')\"> `3` </button></td>\n<td><button onclick=\"append('+')\"> `+{::}` </button></td>\n\n</tr>\n<tr>\n<td> <!--button onclick=\"append('pi')\"> `pi` </button--></td>\n<td><button onclick=\"append('0')\"> `0` </button></td>\n<td><button onclick=\"append('.')\"> `.` </button></td>\n<td><button onclick=\"append('\\n')\"> `\"ent\"`</button></td>\n</tr>\n</tbody>\n</table>"; |
|
3434 |
|
3435 // GO1.1 Generic onload by Brothercake |
|
3436 // http://www.brothercake.com/ |
|
3437 //onload function (replaces the onload="translate()" in the <body> tag) |
|
3438 function generic() |
|
3439 { |
|
3440 if (translateOnLoad) { |
|
3441 var nd = document.getElementById("processasciimathinmoodle"); |
|
3442 if (nd!=null) dsvglocation = nd.className; |
|
3443 if (nd!=null || !checkforprocessasciimathinmoodle) { |
|
3444 if (translateLaTeX) LMtranslate(); |
|
3445 if (translateASCIIMath) translate(); |
|
3446 if (translateASCIIsvg) drawPictures(); |
|
3447 } |
|
3448 var li = getElementsByClass(document,"div","ASCIIMathCalculator"); |
|
3449 if (li.length>0) initASCIIMathCalculators(li); |
|
3450 } |
|
3451 }; |
|
3452 //setup onload function |
|
3453 if(typeof window.addEventListener != 'undefined') |
|
3454 { |
|
3455 //.. gecko, safari, konqueror and standard |
|
3456 window.addEventListener('load', generic, false); |
|
3457 } |
|
3458 else if(typeof document.addEventListener != 'undefined') |
|
3459 { |
|
3460 //.. opera 7 |
|
3461 document.addEventListener('load', generic, false); |
|
3462 } |
|
3463 else if(typeof window.attachEvent != 'undefined') |
|
3464 { |
|
3465 //.. win/ie |
|
3466 window.attachEvent('onload', generic); |
|
3467 } |
|
3468 //** remove this condition to degrade older browsers |
|
3469 else |
|
3470 { |
|
3471 //.. mac/ie5 and anything else that gets this far |
|
3472 //if there's an existing onload function |
|
3473 if(typeof window.onload == 'function') |
|
3474 { |
|
3475 //store it |
|
3476 var existing = onload; |
|
3477 //add new onload handler |
|
3478 window.onload = function() |
|
3479 { |
|
3480 //call existing onload function |
|
3481 existing(); |
|
3482 //call generic onload function |
|
3483 generic(); |
|
3484 }; |
|
3485 } |
|
3486 else |
|
3487 { |
|
3488 //setup onload function |
|
3489 window.onload = generic; |
|
3490 } |
|
3491 } |
|
3492 |