91 lines
3.2 KiB
JavaScript
91 lines
3.2 KiB
JavaScript
.pragma library
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var preg_replace=function(a,b,c,d){void 0===d&&(d=-1);var e=a.substr(a.lastIndexOf(a[0])+1),f=a.substr(1,a.lastIndexOf(a[0])-1),g=RegExp(f,e),i=[],j=0,k=0,l=c,m=[];if(-1===d){do m=g.exec(c),null!==m&&i.push(m);while(null!==m&&-1!==e.indexOf("g"))}else i.push(g.exec(c));for(j=i.length-1;j>-1;j--){for(m=b,k=i[j].length;k>-1;k--)m=m.replace("${"+k+"}",i[j][k]).replace("$"+k,i[j][k]).replace("\\"+k,i[j][k]);l=l.replace(i[j][0],m)}return l};
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var markdown_parser = function(str){
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var rules = [
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// headers
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['/(#+)(.*)/g', function(chars, header){
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var level = chars.length;
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return '<h'+level+'>'+header.trim()+'</h'+level+'>';
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}],
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// images
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// ['/\\!\\[([^\\[]+)\\]\\(([^\\(]+)\\)/g', '<img src=\"\\2\" alt=\"\\1\" />'],
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// link
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['/\\[([^\\[]+)\\]\\(([^\\(]+)\\)/g', '<a href=\"\\2\">\\1</a>'],
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// bold
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['/(\\*\\*|__)(.*?)\\1/g', '<strong>\\2</strong>'],
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// emphasis
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['/(\\*|_)(.*?)\\1/g', '<i>\\2</i>'],
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// strike
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['/(\\~\\~)(.*?)\\1/g', '<del>\\2</del>'],
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// quote
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['/\\:\\"(.*?)\\"\\:/g', '<q>\\1</q>'],
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// unordered list
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// ['/\\n\\*(.*)/g', function(item){
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// return '<ul>\n<li>'+item.trim()+'</li>\n</ul>';
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// }],
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// ordered list
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// ['/\\n[0-9]+\\.(.*)/g', function(item){
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// return '<ol>\n<li>'+item.trim()+'</li>\n</ol>';
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// }],
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// blockquote
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['/\\n\\>(.*)/g', function(str){
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return '<blockquote>'+str.trim()+'</blockquote>';
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}]
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// paragraphs
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// ['/\\n[^\\n]+\\n/g', function(line){
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// line = line.trim();
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// if(line[0] === '<'){
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// return line;
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// }
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// return '\n<p>'+line+'</p>\n';
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// }]
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], fixes = [
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['/<\\/ul>\n<ul>/g', '\n'],
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['/<\\/ol>\n<ol>/g', '\n'],
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['/<\\/blockquote>\n<blockquote>/g', "\n"]
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];
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var parse_line = function(str){
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str = "\n" + str.trim() + "\n";
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for(var i = 0, j = rules.length; i < j; i++){
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if(typeof rules[i][1] == 'function') {
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var _flag = rules[i][0].substr(rules[i][0].lastIndexOf(rules[i][0][0])+1),
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_pattern = rules[i][0].substr(1, rules[i][0].lastIndexOf(rules[i][0][0])-1),
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reg = new RegExp(_pattern, _flag);
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var matches = reg.exec(str);
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if(matches !== null){
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if(matches.length > 1){
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str = preg_replace(rules[i][0], rules[i][1](matches[1], matches[2]), str);
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}
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else
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{
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str = preg_replace(rules[i][0], rules[i][1](matches[0]), str);
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}
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}
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}
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else {
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str = preg_replace(rules[i][0], rules[i][1], str);
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}
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}
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return str.trim();
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};
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str = str.split('\n');
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var rtn = [];
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for(var i = 0, j = str.length; i < j; i++){
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rtn.push(parse_line(str[i]));
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}
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rtn = rtn.join('\n');
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for(i = 0, j = fixes.length; i < j; i++){
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rtn = preg_replace(fixes[i][0], fixes[i][1], rtn);
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}
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return rtn;
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};
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