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@cschep cschep/rtf.js

Last active Dec 11, 2019
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var RTFParser = function(rtfText) {
this.rtfText = rtfText;
this.ignoreList = [];
};
RTFParser.prototype.removeIgnoredLines = function() {
var rtfText = this.rtfText;
for (var i = 0; i < this.ignoreList.length; i++) {
rtfText = rtfText.replace(this.ignoreList[i], '');
}
return rtfText;
};
RTFParser.prototype.parse = function(cb) {
var rtfText = this.removeIgnoredLines();
var currentArtist = '';
var currentWord = '';
var currentControlWord = '';
var controlWordActive = false;
var groupActive = false;
var bold = true;
var colorGroup = false;
var garbageChars = 0;
var result = [];
var unicodeReplacements = {
'u225': 'a',
'u228': 'a',
'u230': 'ae',
'u231': 'c',
'u233': 'e',
'u237': 'i',
'u241': 'n',
'u243': 'o',
'u246': 'o',
'u255': 'y',
'u339': 'oe',
'u8224': '†'
};
function checkControlWord() {
var colorRegex = /c[f|b]\d/g;
if (currentControlWord === 'b') {
bold = true;
} else if (currentControlWord === 'b0') {
bold = false;
} else if (colorRegex.test(currentControlWord)) {
colorGroup = true;
} else if (unicodeReplacements.hasOwnProperty(currentControlWord)) {
currentWord += unicodeReplacements[currentControlWord];
}
}
for (var i = 0; i < rtfText.length; i++) {
var ch = rtfText[i];
if (garbageChars > 0) {
garbageChars--;
} else {
if (ch === '\n') {
if (currentWord !== '') {
if (bold) {
currentArtist = currentWord;
} else {
var song = { artist: currentArtist, title: currentWord };
if (this.onSong) {
this.onSong(song);
}
result.push(song);
}
}
currentWord = '';
} else if (ch === '\\') {
if (controlWordActive) {
checkControlWord();
currentControlWord = '';
} else {
controlWordActive = true;
}
} else if (ch === '\'') {
if (controlWordActive) {
controlWordActive = false;
garbageChars = 2;
}
} else if (ch === '\t') {
if (controlWordActive) {
checkControlWord();
currentControlWord = '';
controlWordActive = false;
}
} else if (ch === ' ') {
if (controlWordActive) {
checkControlWord();
currentControlWord = '';
controlWordActive = false;
} else {
currentWord += ch;
}
} else if (ch === '{') {
groupActive = true;
currentWord = '';
} else if (ch === '}') {
groupActive = false;
colorGroup = false;
} else {
if (controlWordActive) {
currentControlWord += ch;
} else {
if (!groupActive || colorGroup) {
currentWord += ch;
}
}
}
}
}
if (cb) {
cb(result);
}
};
//I S O M O R P H I C
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = RTFParser;
}
exports.RTFParser = RTFParser;
}
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