--- /dev/null
+/*
+ * mimeTeX.js
+ *
+ * Part of the jsMath package for mathematics on the web.
+ *
+ * This file makes jsMath more compatible with the mimeTeX program.
+ * It does not make everything work, but it goes a long way.
+ *
+ * ---------------------------------------------------------------------
+ *
+ * Copyright 2004-2006 by Davide P. Cervone
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+/*
+ * Treat ~ as space
+ */
+jsMath.Parser.prototype.nextIsSpace = function () {
+ return this.string.charAt(this.i) == ' ' ||
+ this.string.charAt(this.i) == '~';
+}
+jsMath.Parser.prototype.special['~'] = 'Space';
+
+/*
+ * Implement \[ ... \], \( ... \), etc.
+ */
+jsMath.Macro('[','\\left['); jsMath.Macro(']','\\right]');
+jsMath.Macro('(','\\left('); jsMath.Macro(')','\\right)');
+jsMath.Macro('<','\\left<'); jsMath.Macro('>','\\right>');
+// can't do \. in a reasonable way
+jsMath.Parser.prototype.macros['|'] = ['HandleLR','|','|'];
+jsMath.Parser.prototype.macros['='] = ['HandleLR','\\|','\\|'];
+
+/*
+ * Make non-standard \left{ and \right} work
+ */
+jsMath.Parser.prototype.delimiter['}'] = [5,2,0x67,3,0x09];
+jsMath.Parser.prototype.delimiter['{'] = [4,2,0x66,3,0x08];
+
+
+/*
+ * Immitate mimeTeX \big... and \Big... ops
+ */
+
+// make the normal ones in text mode
+jsMath.Macro('int','\\intop\\nolimits');
+jsMath.Macro('oint','\\ointop\\nolimits');
+jsMath.Macro('sum','\\sumop\\nolimits');
+jsMath.Macro('prod','\\prodop\\nolimits');
+jsMath.Macro('coprod','\\coprodop\\nolimits');
+
+jsMath.Macro('bigint','\\bigintop\\nolimits');
+jsMath.Macro('bigoint','\\bigointop\\nolimits');
+jsMath.Macro('bigsum','\\bigsumop\\nolimits');
+jsMath.Macro('bigprod','\\bigprodop\\nolimits');
+jsMath.Macro('bigcoprod','\\bigcoprodop\\nolimits');
+
+jsMath.Macro('Bigint','\\bigintop\\limits');
+jsMath.Macro('Bigoint','\\bigointop\\limits');
+jsMath.Macro('Bigsum','\\bigsumop\\limits');
+jsMath.Macro('Bigprod','\\bigprodop\\limits');
+jsMath.Macro('Bigcoprod','\\bigcoprod\\limits');
+
+/*
+ * The characters needed for the macros above
+ */
+jsMath.Parser.prototype.mathchardef['coprodop'] = [1,3,0x60];
+jsMath.Parser.prototype.mathchardef['prodop'] = [1,3,0x51];
+jsMath.Parser.prototype.mathchardef['sumop'] = [1,3,0x50];
+
+jsMath.Parser.prototype.mathchardef['bigintop'] = [1,3,0x5A];
+jsMath.Parser.prototype.mathchardef['bigointop'] = [1,3,0x49];
+jsMath.Parser.prototype.mathchardef['bigcoprodop'] = [1,3,0x61];
+jsMath.Parser.prototype.mathchardef['bigprodop'] = [1,3,0x59];
+jsMath.Parser.prototype.mathchardef['bigsumop'] = [1,3,0x58];
+
+/*
+ * Unlink the small versions so they don't enlarge in display mode
+ */
+jsMath.TeX['cmex10'][0x48].n = null;
+jsMath.TeX['cmex10'][0x50].n = null;
+jsMath.TeX['cmex10'][0x51].n = null;
+jsMath.TeX['cmex10'][0x52].n = null;
+jsMath.TeX['cmex10'][0x60].n = null;
+
+
+/*
+ * Some other missing items
+ */
+jsMath.Macro('/','{}'); // insert an empty box \/
+jsMath.Macro('raisebox','\\raise #1px ',1); // convert to \raise
+jsMath.Macro('hfill','\\quad ',1); // punt
+jsMath.Macro('fbox','\\oldfbox{$#1$}',1); // do fbox in math mode
+
+/*
+ * These get new JavaScript routines
+ */
+jsMath.Parser.prototype.macros['unitlength'] = 'unitlength';
+jsMath.Parser.prototype.macros['hspace'] = 'hspace';
+jsMath.Parser.prototype.macros['fs'] = 'fs';
+jsMath.Parser.prototype.macros['oldfbox'] = 'FBox';
+
+/*
+ * Add some JavaScript functions to the parser
+ */
+jsMath.Package(jsMath.Parser,{
+
+ /*
+ * Implement \left x ... \right x
+ */
+ HandleLR: function (name,data) {
+ var arg = this.GetUpto(name,name); if (this.error) return;
+ this.string = '\\left'+data[0]+arg+'\\right'+data[1];
+ this.i = 0;
+ },
+
+ /*
+ * Hold the unit length in mlist.data
+ */
+ unitlength: function (name) {
+ var n = this.GetArgument(this.cmd+name); if (this.error) return;
+ if (!n.match(/^-?(\d+(\.\d*)?|\.\d+)$/)) {
+ this.Error("Argument for "+this.cmd+name+" must be a number");
+ return;
+ }
+ this.mlist.data['unitlength'] = n;
+ },
+
+ /*
+ * Get the length (converted to ems) and multiply by the unit length
+ */
+ hspace: function (name) {
+ var w = this.GetArgument(this.cmd+name); if (this.error) return;
+ if (!w.match(/^-?(\d+(\.\d*)?|\.\d+)$/)) {
+ this.Error("Argument for "+this.cmd+name+" must be a number");
+ return;
+ }
+ w /= jsMath.em
+ if (this.mlist.data['unitlength']) {w *= this.mlist.data['unitlength']}
+ this.mlist.Add(jsMath.mItem.Space(w));
+ },
+
+ /*
+ * Implement \fs{...} for font-size changing
+ */
+ fs: function (name) {
+ var n = this.GetArgument(this.cmd+name); if (this.error) return;
+ if (!n.match(/^[-+]?\d+$/)) {
+ this.Error("Argument for "+this.cmd+name+" must be an integer");
+ return;
+ }
+ if (n.match(/[-+]/)) {n = n - 0; n += this.mlist.data.size}
+ this.mlist.data.size = n = Math.max(0,Math.min(9,n));
+ this.mlist.Add(new jsMath.mItem('size',{size: n}));
+ },
+
+ /*
+ * Repalce the Array function by one that accepts an optional
+ * parameter for the column types, and that handle's mimeTeX's
+ * "preamble" format.
+ */
+ Array: function (name,delim) {
+ var columns = delim[2]; var cspacing = delim[3];
+ if (!columns && this.GetNext() == '{') {
+ columns = this.GetArgument(this.cmd+'begin{'+name+'}');
+ if (this.error) return;
+ } else {
+ columns = '';
+ }
+ columns = columns.replace(/[^clr]/g,'');
+ columns = columns.split('');
+ var data = this.mlist.data; var style = delim[5] || 'T';
+ var arg = this.GetEnd(name); if (this.error) return;
+ if (arg.match(/\$/)) {arg = arg.replace(/^([^$]*)\$/,''); columns = RegExp.$1}
+ var parse = new jsMath.Parser(arg+this.cmd+'\\',null,data.size,style);
+ parse.matrix = name; parse.row = []; parse.table = []; parse.rspacing = [];
+ parse.Parse(); if (parse.error) {this.Error(parse); return}
+ parse.HandleRow(name,1); // be sure the last row is recorded
+ var box = jsMath.Box.Layout(data.size,parse.table,columns,cspacing,parse.rspacing,delim[4]||null);
+ // Add parentheses, if needed
+ if (delim[0] && delim[1]) {
+ var left = jsMath.Box.Delimiter(box.h+box.d-jsMath.hd/4,this.delimiter[delim[0]],'T');
+ var right = jsMath.Box.Delimiter(box.h+box.d-jsMath.hd/4,this.delimiter[delim[1]],'T');
+ box = jsMath.Box.SetList([left,box,right],data.style,data.size);
+ }
+ this.mlist.Add(jsMath.mItem.Atom((delim[0]? 'inner': 'ord'),box));
+ },
+
+ /*
+ * Similarly for Matrix (used by \matrix and \array)
+ */
+ Matrix: function (name,delim) {
+ var data = this.mlist.data;
+ var arg = this.GetArgument(this.cmd+name); if (this.error) return;
+ if (arg.match(/\$/)) {arg = arg.replace(/^([^$]*)\$/,''); delim[2] = RegExp.$1}
+ var parse = new jsMath.Parser(arg+this.cmd+'\\',null,data.size,delim[5] || 'T');
+ parse.matrix = name; parse.row = []; parse.table = []; parse.rspacing = [];
+ parse.Parse(); if (parse.error) {this.Error(parse); return}
+ parse.HandleRow(name,1); // be sure the last row is recorded
+ var box = jsMath.Box.Layout(data.size,parse.table,delim[2]||null,delim[3]||null,parse.rspacing,delim[4]||null);
+ // Add parentheses, if needed
+ if (delim[0] && delim[1]) {
+ var left = jsMath.Box.Delimiter(box.h+box.d-jsMath.hd/4,this.delimiter[delim[0]],'T');
+ var right = jsMath.Box.Delimiter(box.h+box.d-jsMath.hd/4,this.delimiter[delim[1]],'T');
+ box = jsMath.Box.SetList([left,box,right],data.style,data.size);
+ }
+ this.mlist.Add(jsMath.mItem.Atom((delim[0]? 'inner': 'ord'),box));
+ }
+});