X-Git-Url: http://lambda.jimpryor.net/git/gitweb.cgi?a=blobdiff_plain;f=jsMath%2Fextensions%2Fnewcommand.js;fp=jsMath%2Fextensions%2Fnewcommand.js;h=0000000000000000000000000000000000000000;hb=cb3848eeb2c1340d5a5090b46b51c6e53b21ad39;hp=d2302228a5bbb1d87ed7052abd9461631f83666d;hpb=10b8a88ca57bb59dc6d5866d943a193f2ecf11d4;p=lambda.git diff --git a/jsMath/extensions/newcommand.js b/jsMath/extensions/newcommand.js deleted file mode 100644 index d2302228..00000000 --- a/jsMath/extensions/newcommand.js +++ /dev/null @@ -1,205 +0,0 @@ -/* - * extensions/newcommand.js - * - * Part of the jsMath package for mathematics on the web. - * - * This file implements the \newcommand and \def macros. It will be - * loaded automatically when needed, or can be loaded by - * - * jsMath.Extension.Require('newcommand'); - * - * --------------------------------------------------------------------- - * - * Copyright 2005-2006 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. - */ - -/********************************************************************/ - -jsMath.Package(jsMath.Parser,{ - - macros: { - newcommand: 'NewCommand', - newenvironment: 'NewEnvironment', - def: 'MacroDef' - }, - - /* - * Implement \newcommand{\name}[n]{...} - */ - NewCommand: function (name) { - var cs = this.trimSpaces(this.GetArgument(this.cmd+name)); if (this.error) return; - var n = this.trimSpaces(this.GetBrackets(this.cmd+name)); if (this.error) return; - var def = this.GetArgument(this.cmd+name); if (this.error) return; - if (n == '') {n = null} - if (cs.charAt(0) == this.cmd) {cs = cs.substr(1)} - if (!cs.match(/^(.|[a-z]+)$/i)) {this.Error("Illegal control sequence name for "+this.cmd+name); return} - if (n != null && !n.match(/^[0-9]+$/)) {this.Error("Illegal number of parameters specified in "+this.cmd+name); return} - jsMath.Parser.prototype.macros[cs] = ['Macro',def,n]; - }, - - /* - * Implement \newenvironment{name}[n]{begincmd}{endcmd} - */ - NewEnvironment: function (name) { - var env = this.trimSpaces(this.GetArgument(this.cmd+name)); if (this.error) return; - var n = this.trimSpaces(this.GetBrackets(this.cmd+name)); if (this.error) return; - var bdef = this.GetArgument(this.cmd+name); if (this.error) return; - var edef = this.GetArgument(this.cmd+name); if (this.error) return; - if (n == '') {n = null} - if (n != null && !n.match(/^[0-9]+$/)) {this.Error("Illegal number of parameters specified in "+this.cmd+name); return} - jsMath.Parser.prototype.environments[env] = ['Environment',bdef,edef,n]; - }, - - /* - * Implement \def command - */ - MacroDef: function (name) { - var cs = this.GetCSname(this.cmd+name); if (this.error) return; - var params = this.GetTemplate(this.cmd+name); if (this.error) return; - var def = this.GetArgument(this.cmd+name); if (this.error) return; - if (typeof(params) == 'number') { - jsMath.Parser.prototype.macros[cs] = ['Macro',def,params]; - } else { - jsMath.Parser.prototype.macros[cs] = ['MacroWithTemplate',def,params[0],params[1]]; - } - }, - - /* - * Get a CS name or give an error - */ - GetCSname: function (cmd) { - var c = this.GetNext(); - if (c != this.cmd) {this.Error(cmd+" must be followed by a control sequence"); return null} - var cs = this.trimSpaces(this.GetArgument(cmd)); if (this.error) {return null}; - return cs.substr(1); - }, - - /* - * Get a \def parameter template - */ - GetTemplate: function (cmd) { - var c; var params = []; var n = 0; - c = this.GetNext(); var i = this.i; - while (this.i < this.string.length) { - c = this.GetNext(); - if (c == '#') { - if (i != this.i) {params[n] = this.string.substr(i,this.i-i)} - c = this.string.charAt(++this.i); - if (!c.match(/[1-9]/)) {this.Error("Illegal use of # in "+cmd); return null} - if (1*c != ++n) {this.Error("Parameters must be numbered sequentially"); return null} - i = this.i+1; - } else if (c == '{') { - if (i != this.i) {params[n] = this.string.substr(i,this.i-i)} - if (params.length > 0) {return [n,params]} else {return n} - } - this.i++; - } - this.Error("Missing replacement string for definition of "+cmd); - return null; - }, - - /* - * Process a macro with a parameter template - */ - MacroWithTemplate: function (name,data) { - var text = data[0]; - var n = data[1]; var params = data[2]; - if (n) { - var args = []; var c = this.GetNext(); - if (params[0] && !this.MatchParam(params[0])) - {this.Error("Use of "+this.cmd+name+" doesn't match its definition"); return} - for (var i = 0; i < n; i++) { - args[args.length] = this.GetParameter(this.cmd+name,params[i+1]); - if (this.error) return; - } - text = this.SubstituteArgs(args,text); - } - this.string = this.AddArgs(text,this.string.slice(this.i)); - this.i = 0; - }, - - /* - * Process a user-defined environment - */ - Environment: function (name,data) { - var bdef = data[0]; var edef = data[1]; var n = data[2]; - if (n) { - var args = []; - for (var i = 0; i < n; i++) { - args[args.length] = this.GetArgument(this.cmd+"begin{"+name+"}"); if (this.error) return; - } - bdef = this.SubstituteArgs(args,bdef); - } - var text = this.GetEnd(name); if (this.error) return; - text = this.AddArgs(this.AddArgs(bdef,text),edef); - this.string = this.AddArgs(text,this.string.slice(this.i)); - this.i = 0; - }, - - /* - * Find a single parameter delimited by a trailing template - */ - GetParameter: function (name,param) { - if (param == null) {return this.GetArgument(name)} - var i = this.i; var j = 0; var hasBraces = 0; - while (this.i < this.string.length) { - if (this.string.charAt(this.i) == '{') { - if (this.i == i) {hasBraces = 1} - this.GetArgument(name); j = this.i - i; - } else if (this.MatchParam(param)) { - if (hasBraces) {i++; j -= 2} - return this.string.substr(i,j); - } else { - this.i++; j++; hasBraces = 0; - } - } - this.Error("Runaway argument for "+name+"?"); - return null; - }, - - /* - * Check if a template is at the current location. - * (The match must be exact, with no spacing differences. TeX is - * a little more forgiving about spaces after macro names) - */ - MatchParam: function (param) { - if (this.string.substr(this.i,param.length) != param) {return 0} - this.i += param.length; - return 1; - } - -}); - -/* - * Define a jsMath.Environment() command similar to the - * jsMath.Macro() command. - * - * Usage: jsMath.Environment(name,begin,end[,n]) - * - * where "name" is the name of the environment, "begin" is the - * text that replaces the \begin{name} and "end" is the text that - * replaces the \end{name}. If "n" is provided, it is the number - * of parameters that the \begin{name} accepts, and these are - * used to replace #1, #2, etc within the "begin" text. - */ - -jsMath.Add(jsMath,{ - Environment: function (name) { - var environments = jsMath.Parser.prototype.environments; - environments[name] = ['Environment']; - for (var i = 1; i < arguments.length; i++) - {environments[name][environments[name].length] = arguments[i]} - } -});