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TiddlyWiki5/js/TiddlyWikiInput.js

52 lines
1.7 KiB
JavaScript
Executable File

/*
Functions concerned with parsing TiddlyWiki files
*/
var tiddlerInput = require("./TiddlerInput.js"),
utils = require("./Utils.js");
var tiddlyWikiInput = exports;
/*
Parses the text of a TiddlyWiki HTML file, and returns the tiddlers as an array of hashmaps of raw fields.
*/
tiddlyWikiInput.parseTiddlyWiki = function(tiddlywikidoc) {
var results = [];
var storeAreaPos = locateStoreArea(tiddlywikidoc);
if(storeAreaPos) {
var endOfDivRegExp = /(<\/div>\s*)/gi;
var startPos = storeAreaPos[0];
endOfDivRegExp.lastIndex = startPos;
var match = endOfDivRegExp.exec(tiddlywikidoc);
while(match && startPos < storeAreaPos[1]) {
var endPos = endOfDivRegExp.lastIndex;
var fields = tiddlerInput.parseTiddlerDiv(tiddlywikidoc.substring(startPos,endPos));
fields.text = utils.htmlDecode(fields.text);
results.push(fields);
startPos = endPos;
match = endOfDivRegExp.exec(tiddlywikidoc);
}
}
return results;
}
function locateStoreArea(tiddlywikidoc)
{
var startSaveArea = '<div id="' + 'storeArea">';
var startSaveAreaRegExp = /<div id=["']?storeArea['"]?>/gi;
var endSaveArea = '</d' + 'iv>';
var endSaveAreaCaps = '</D' + 'IV>';
var posOpeningDiv = tiddlywikidoc.search(startSaveAreaRegExp);
var limitClosingDiv = tiddlywikidoc.indexOf("<"+"!--POST-STOREAREA--"+">");
if(limitClosingDiv == -1) {
limitClosingDiv = tiddlywikidoc.indexOf("<"+"!--POST-BODY-START--"+">");
}
var start = limitClosingDiv == -1 ? tiddlywikidoc.length : limitClosingDiv;
var posClosingDiv = tiddlywikidoc.lastIndexOf(endSaveArea,start);
if(posClosingDiv == -1) {
posClosingDiv = tiddlywikidoc.lastIndexOf(endSaveAreaCaps,start);
}
return (posOpeningDiv != -1 && posClosingDiv != -1) ? [posOpeningDiv + startSaveArea.length,posClosingDiv] : null;
}