76 lines
2.8 KiB
JavaScript
76 lines
2.8 KiB
JavaScript
define([
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"underscore",
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"extensions/markdownExtra",
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"extensions/mathJax",
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"classes/Extension",
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], function(_, markdownExtra, mathJax, Extension) {
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var markdownSectionParser = new Extension("markdownSectionParser", "Markdown section parser");
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var eventMgr;
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markdownSectionParser.onEventMgrCreated = function(eventMgrParameter) {
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eventMgr = eventMgrParameter;
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};
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var sectionList = [];
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// Regexp to look for section delimiters
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var regexp = '^.+[ \\t]*\\n=+[ \\t]*\\n+|^.+[ \\t]*\\n-+[ \\t]*\\n+|^\\#{1,6}[ \\t]*.+?[ \\t]*\\#*\\n+'; // Title delimiters
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markdownSectionParser.onPagedownConfigure = function(editor) {
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if(markdownExtra.enabled) {
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if(_.some(markdownExtra.config.extensions, function(extension) {
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return extension == "fenced_code_gfm";
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})) {
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regexp = '^```.*\\n[\\s\\S]*?\\n```|' + regexp; // Fenced block delimiters
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}
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}
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if(mathJax.enabled) {
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// Math delimiter has to follow 1 empty line to be considered as a section delimiter
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regexp = '^[ \\t]*\\n\\$\\$[\\s\\S]*?\\$\\$|' + regexp; // $$ math block delimiters
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regexp = '^[ \\t]*\\n\\\\\\\\[[\\s\\S]*?\\\\\\\\]|' + regexp; // \\[ \\] math block delimiters
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regexp = '^[ \\t]*\\n\\\\?\\\\begin\\{[a-z]*\\*?\\}[\\s\\S]*?\\\\end\\{[a-z]*\\*?\\}|' + regexp; // \\begin{...} \\end{...} math block delimiters
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}
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regexp = new RegExp(regexp, 'gm');
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var converter = editor.getConverter();
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converter.hooks.chain("preConversion", function() {
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return _.reduce(sectionList, function(result, section) {
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return result + section.previewText;
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}, '');
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});
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};
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var trimLen;
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markdownSectionParser.onMarkdownTrim = function(len) {
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trimLen = len;
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};
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var sectionCounter = 0;
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function parseFileContent(fileDesc) {
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var text = fileDesc.content.substring(trimLen);
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var tmpText = text + "\n\n";
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function addSection(startOffset, endOffset) {
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var sectionText = tmpText.substring(offset, endOffset);
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sectionList.push({
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id: ++sectionCounter,
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text: sectionText
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});
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}
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sectionList = [];
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var offset = 0;
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// Look for delimiters
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tmpText.replace(regexp, function(match, matchOffset) {
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// Create a new section with the text preceding the delimiter
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addSection(offset, matchOffset);
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offset = matchOffset;
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});
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// Last section
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addSection(offset, text.length);
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eventMgr.onSectionsCreated(sectionList);
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}
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markdownSectionParser.onFileOpen = parseFileContent;
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markdownSectionParser.onContentChanged = parseFileContent;
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return markdownSectionParser;
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}); |