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Diffstat (limited to 'src/usr/local/www/code-syntax-highlighter/shCore.js')
-rw-r--r-- | src/usr/local/www/code-syntax-highlighter/shCore.js | 589 |
1 files changed, 589 insertions, 0 deletions
diff --git a/src/usr/local/www/code-syntax-highlighter/shCore.js b/src/usr/local/www/code-syntax-highlighter/shCore.js new file mode 100644 index 0000000..e830438 --- /dev/null +++ b/src/usr/local/www/code-syntax-highlighter/shCore.js @@ -0,0 +1,589 @@ +/** + * Code Syntax Highlighter. Version 1.1.0 + * Copyright (C) 2004 Dream Projections Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + ** + * Usage example: + * + * <script src="shCore.js" type="text/javascript"></script> + * <script src="shBrushXml.js" type="text/javascript"></script> + * + * <textarea name="code" language="html"> + * <img src="myimage.gif" border="0"> + * </textarea> + * + * <script>dp.SyntaxHighlighter.HighlightAll('code', 'value');</script> + * + ** + * History: + * 1.1.0 - March 23rd, 2005 + * - split brushes into separate files + * - now works in Safari + * - added missing strings to PHP matches + * + * 1.0.4 - February 2nd, 2005 + * - added Delphi & Python + * - multi-line comments fixed + * - language name can be set through w3c valid 'class' attribute + * - HighlightAll(name, [showGutter], [showTools]) + * + * 1.0.3 - December 31th, 2004 (added PHP & SQL) + * 1.0.2 - December 28th, 2004 (refactoring with namespaces) + * 1.0.1 - December 14th, 2004 + * 1.0.0 - November 13th, 2004 + */ + +// create namespaces +var dp = { + sh : // dp.sh + { + Utils : {}, // dp.sh.Utils + Brushes : {} // dp.sh.Brushes + } +}; + +dp.sh.Config = { + Version : '1.1.0', + About : '<html><head><title>About...</title></head><body class="dp-about"><table cellspacing="0"><tr><td class="copy"><div class="para title">dp.SyntaxHighlighter</div><div class="para">Version: {V}</div><div class="para"><a href="http://www.dreamprojections.com/sh/?ref=about" target="_blank">http://www.dreamprojections.com/SyntaxHighlighter</a></div>©2004-2005 Dream Projections Inc. All right reserved.</td></tr><tr><td class="footer"><input type="button" class="close" value="OK" onClick="window.close()"/></td></tr></table></body></html>' +}; + +dp.SyntaxHighlighter = dp.sh; + + + +// opens a new windows and puts the original unformatted source code inside. +dp.sh.Utils.ViewSource = function(sender) +{ + var code = sender.parentNode.originalCode; + var wnd = window.open('', '_blank', 'width=750, height=400, location=0, resizable=1, menubar=0, scrollbars=1'); + + code = code.replace(/</g, '<'); + + wnd.document.write('<pre>' + code + '</pre>'); + wnd.document.close(); +} + +// copies the original source code in to the clipboard (IE only) +dp.sh.Utils.ToClipboard = function(sender) +{ + var code = sender.parentNode.originalCode; + + // This works only for IE. There's a way to make it work with Mozilla as well, + // but it requires security settings changed on the client, which isn't by + // default, so 99% of users won't have it working anyways. + if(window.clipboardData) + { + window.clipboardData.setData('text', code); + + alert('The code is in your clipboard now.'); + } +} + +// creates an invisible iframe, puts the original source code inside and prints it +dp.sh.Utils.PrintSource = function(sender) +{ + var td = sender.parentNode; + var code = td.processedCode; + var iframe = document.createElement('iframe'); + var doc = null; + var wnd = + + // this hides the iframe + iframe.style.cssText = 'position:absolute; width:0px; height:0px; left:-5px; top:-5px;'; + + td.appendChild(iframe); + + doc = iframe.contentWindow.document; + code = code.replace(/</g, '<'); + + doc.open(); + doc.write('<pre>' + code + '</pre>'); + doc.close(); + + iframe.contentWindow.focus(); + iframe.contentWindow.print(); + + td.removeChild(iframe); +} + +dp.sh.Utils.About = function() +{ + var wnd = window.open('', '_blank', 'dialog, width=320, height=150'); + var doc = wnd.document; + + var styles = document.getElementsByTagName('style'); + var links = document.getElementsByTagName('link'); + + doc.write(dp.sh.Config.About.replace('{V}', dp.sh.Config.Version)); + + // copy over ALL the styles from the parent page + for(var i = 0; i < styles.length; i++) + doc.write('<style>' + styles[i].innerHTML + '</style>'); + + for(var i = 0; i < links.length; i++) + if(links[i].rel.toLowerCase() == 'stylesheet') + doc.write('<link type="text/css" rel="stylesheet" href="' + links[i].href + '"></link>'); + + doc.close(); + wnd.focus(); +} + + + + + +// creates a new match object +dp.sh.Match = function(value, index, css) +{ + this.value = value; + this.index = index; + this.length = value.length; + this.css = css; +} + + + + + +dp.sh.Highlighter = function() +{ + this.addGutter = true; + this.addControls = true; + this.tabsToSpaces = true; +} + +// static callback for the match sorting +dp.sh.Highlighter.SortCallback = function(m1, m2) +{ + // sort matches by index first + if(m1.index < m2.index) + return -1; + else if(m1.index > m2.index) + return 1; + else + { + // if index is the same, sort by length + if(m1.length < m2.length) + return -1; + else if(m1.length > m2.length) + return 1; + } + return 0; +} + +// gets a list of all matches for a given regular expression +dp.sh.Highlighter.prototype.GetMatches = function(regex, css) +{ + var index = 0; + var match = null; + + while((match = regex.exec(this.code)) != null) + { + this.matches[this.matches.length] = new dp.sh.Match(match[0], match.index, css); + } +} + +dp.sh.Highlighter.prototype.AddBit = function(str, css) +{ + var span = document.createElement('span'); + + str = str.replace(/&/g, '&'); + str = str.replace(/ /g, ' '); + str = str.replace(/</g, '<'); + str = str.replace(/\n/gm, ' <br />'); + + // when adding a piece of code, check to see if it has line breaks in it + // and if it does, wrap individual line breaks with span tags + if(css != null) + { + var regex = new RegExp('<br />', 'gi'); + + if(regex.test(str)) + { + var lines = str.split(' <br />'); + + str = ''; + + for(var i = 0; i < lines.length; i++) + { + span = document.createElement('span'); + span.className = css; + span.innerHTML = lines[i]; + + this.div.appendChild(span); + + // don't add a <br /> for the last line + if(i + 1 < lines.length) + { + this.div.appendChild(document.createElement('br')); + } + } + } + else + { + span.className = css; + span.innerHTML = str; + this.div.appendChild(span); + } + } + else + { + span.innerHTML = str; + this.div.appendChild(span); + } +} + +// checks if one match is inside another +dp.sh.Highlighter.prototype.IsInside = function(match) +{ + if(match == null || match.length == 0) + { + return; + } + + for(var i = 0; i < this.matches.length; i++) + { + var c = this.matches[i]; + + if(c == null) + { + continue; + } + + if((match.index > c.index) && (match.index <= c.index + c.length)) + { + return true; + } + } + + return false; +} + +dp.sh.Highlighter.prototype.ProcessRegexList = function() +{ + for(var i = 0; i < this.regexList.length; i++) + { + this.GetMatches(this.regexList[i].regex, this.regexList[i].css); + } +} + +dp.sh.Highlighter.prototype.ProcessSmartTabs = function(code) +{ + var lines = code.split('\n'); + var result = ''; + var tabSize = 4; + var tab = '\t'; + + // This function inserts specified amount of spaces in the string + // where a tab is while removing that given tab. + function InsertSpaces(line, pos, count) + { + var left = line.substr(0, pos); + var right = line.substr(pos + 1, line.length); // pos + 1 will get rid of the tab + var spaces = ''; + + for(var i = 0; i < count; i++) + { + spaces += ' '; + } + + return left + spaces + right; + } + + // This function process one line for 'smart tabs' + function ProcessLine(line, tabSize) + { + if(line.indexOf(tab) == -1) + { + return line; + } + + var pos = 0; + + while((pos = line.indexOf(tab)) != -1) + { + // This is pretty much all there is to the 'smart tabs' logic. + // Based on the position within the line and size of a tab, + // calculate the amount of spaces we need to insert. + var spaces = tabSize - pos % tabSize; + + line = InsertSpaces(line, pos, spaces); + } + + return line; + } + + // Go through all the lines and do the 'smart tabs' magic. + for(var i = 0; i < lines.length; i++) + { + var line = lines[i]; + result += ProcessLine(line, tabSize) + '\n'; + } + + return result; +} + +dp.sh.Highlighter.prototype.SwitchToTable = function() +{ + // Safari fix: for some reason lowercase <br /> isn't getting picked up, even though 'i' is set + var lines = this.div.innerHTML.split(/<br \/>/gi); + var row = null; + var cell = null; + var html = ''; + var pipe = ' | '; + + // creates an anchor to a utility + function UtilHref(util, text) + { + return '<a href="#" onclick="dp.sh.Utils.' + util + '(this); return false;">' + text + '</a>'; + } + + row = this.table.insertRow(-1); + + if(this.addGutter == true) + { + cell = row.insertCell(-1); + cell.className = 'tools-corner'; + } + + if(this.addControls == true) + { + cell = row.insertCell(-1); + + cell.originalCode = this.originalCode; + cell.processedCode = this.code; + + cell.className = 'tools'; + cell.innerHTML = UtilHref('ViewSource', 'view plain') + pipe + UtilHref('PrintSource', 'print'); + + if(window.clipboardData) + { + cell.innerHTML += pipe + UtilHref('ToClipboard', 'copy to clipboard'); + } + + cell.innerHTML += pipe + UtilHref('About', '?'); + } + + for(var i = 0; i < lines.length - 1; i++) + { + row = this.table.insertRow(-1); + + if(this.addGutter == true) + { + cell = row.insertCell(-1); + cell.className = 'gutter'; + cell.innerHTML = i + 1; + } + + cell = row.insertCell(-1); + cell.className = 'line'; + cell.innerHTML = lines[i]; + } + + this.div.innerHTML = ''; +} + +dp.sh.Highlighter.prototype.Highlight = function(code) +{ + // This function strips all new lines and spaces + // from the beging and end of the string . + function Trim(str) + { + var begining = new RegExp('^[\\s\\n]', 'g'); + var end = new RegExp('[\\s\\n]$', 'g'); + + while(begining.test(str)) + { + str = str.substr(1); + } + + while(end.test(str)) + { + str = str.substr(0, str.length - 1); + } + + return str; + } + + // This function returns a portions of the string + // from pos1 to pos2 inclusive. + function Copy(string, pos1, pos2) + { + return string.substr(pos1, pos2 - pos1); + } + + var pos = 0; + + this.originalCode = code; + this.code = Trim(code); + this.div = document.createElement('div'); + this.table = document.createElement('table'); + this.matches = new Array(); + + if(this.CssClass != null) + { + this.table.className = this.CssClass; + } + + // replace tabs with spaces + if(this.tabsToSpaces == true) + { + this.code = this.ProcessSmartTabs(this.code); + } + + this.table.border = 0; + this.table.cellSpacing = 0; + this.table.cellPadding = 0; + + this.ProcessRegexList(); + + // if no matches found, do nothing + if(this.matches.length == 0) + { + return; + } + + // sort the matches + this.matches = this.matches.sort(dp.sh.Highlighter.SortCallback); + + // The following loop checks to see if any of the matches are inside + // of other matches. This process would get rid of highligting strings + // inside comments, keywords inside strings and so on. + for(var i = 0; i < this.matches.length; i++) + { + if(this.IsInside(this.matches[i])) + { + this.matches[i] = null; + } + } + + // Finally, go through the final list of matches and pull the all + // together adding everything in between that isn't a match. + for(var i = 0; i < this.matches.length; i++) + { + var match = this.matches[i]; + + if(match == null || match.length == 0) + { + continue; + } + + this.AddBit(Copy(this.code, pos, match.index), null); + this.AddBit(match.value, match.css); + + pos = match.index + match.length; + } + + this.AddBit(this.code.substr(pos), null); + + this.SwitchToTable(); +} + +dp.sh.Highlighter.prototype.GetKeywords = function(str) +{ + return '\\b' + str.replace(/ /g, '\\b|\\b') + '\\b'; +} + +// highlightes all elements identified by name and gets source code from specified property +dp.sh.HighlightAll = function(name, showGutter /* optional */, showControls /* optional */) +{ + var elements = document.getElementsByName(name); + var highlighter = null; + var registered = new Object(); + var propertyName = 'value'; + + function FindValue() + { + var a = arguments; + + for(var i = 0; i < a.length; i++) + if(a[i] != null && ((typeof(a[i]) == 'string' && a[i] != '') || (typeof(a[i]) == 'object' && a[i].value != ''))) + return a[i]; + + return null; + } + + if(elements == null) + { + return; + } + + // if showGutter isn't set, default to TRUE + if(showGutter == null) + { + showGutter = true; + } + + // if showControls isn't set, default to TRUE + if(showControls == null) + { + showControls = true; + } + + // register all brushes + for(var brush in dp.sh.Brushes) + { + var aliases = dp.sh.Brushes[brush].Aliases; + + if(aliases == null) + { + continue; + } + + for(var i = 0; i < aliases.length; i++) + { + registered[aliases[i]] = brush; + } + } + + for(var i = 0; i < elements.length; i++) + { + var element = elements[i]; + var language = FindValue(element.attributes['class'], element.className, element.attributes['language'], element.language); + + if(language == null) + continue; + + if(language.value) + language = language.value; + + language = (language + '').toLowerCase(); + + if(registered[language] == null) + { + continue; + } + + // instantiate a brush + highlighter = new dp.sh.Brushes[registered[language]](); + + // hide the original element + element.style.display = 'none'; + + highlighter.addGutter = showGutter; + highlighter.addControls = showControls; + highlighter.Highlight(element[propertyName]); + + // place the result table inside a div + var div = document.createElement('div'); + + div.className = 'dp-highlighter'; + div.appendChild(highlighter.table); + + element.parentNode.insertBefore(div, element); + } +} |