mirror of
https://github.com/Jermolene/TiddlyWiki5
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647 lines
27 KiB
JavaScript
647 lines
27 KiB
JavaScript
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if (typeof exports !== 'undefined') {
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var window = {Unicode: require('./unicodecategories').Unicode};
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exports.Tokenizer = Tokenizer;
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}
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/*!
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* Tokenizer for JavaScript / ECMAScript 5
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* (c) Peter van der Zee, qfox.nl
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*/
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/**
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* @param {Object} inp
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*/
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function Tokenizer(inp){
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this.inp = inp||'';
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// replace all other line terminators with \n (leave \r\n in tact though). we should probably remove the shadowInp when finished...
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// only replace \r if it is not followed by a \n else \r\n would become \n\n causing a double newline where it is just a single
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this.shadowInp = (inp||'').replace(Tokenizer.regexNormalizeNewlines, '\n');
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this.pos = 0;
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this.line = 0;
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this.column = 0;
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this.cache = {};
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this.errorStack = [];
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this.wtree = [];
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this.btree = [];
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// this.regexWhiteSpace = Tokenizer.regexWhiteSpace;
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this.regexLineTerminator = Tokenizer.regexLineTerminator; // used in fallback
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this.regexAsciiIdentifier = Tokenizer.regexAsciiIdentifier;
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this.hashAsciiIdentifier = Tokenizer.hashAsciiIdentifier;
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// this.regexHex = Tokenizer.regexHex;
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this.hashHex = Tokenizer.hashHex
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this.regexUnicodeEscape = Tokenizer.regexUnicodeEscape;
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this.regexIdentifierStop = Tokenizer.regexIdentifierStop;
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this.hashIdentifierStop = Tokenizer.hashIdentifierStop;
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// this.regexPunctuators = Tokenizer.regexPunctuators;
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this.regexNumber = Tokenizer.regexNumber;
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this.regexNewline = Tokenizer.regexNewline;
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this.regexBig = Tokenizer.regexBig;
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this.regexBigAlt = Tokenizer.regexBigAlt;
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this.tokenCount = 0;
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this.tokenCountNoWhite = 0;
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this.Unicode = window.Unicode;
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// if the Parser throws an error. it will set this property to the next match
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// at the time of the error (which was not what it was expecting at that point)
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// and pass on an "error" match. the error should be scooped on the stack and
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// this property should be returned, without looking at the input...
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this.errorEscape = null;
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};
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Tokenizer.prototype = {
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inp:null,
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shadowInp:null,
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pos:null,
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line:null,
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column:null,
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cache:null,
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errorStack:null,
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wtree: null, // contains whitespace (spaces, comments, newlines)
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btree: null, // does not contain any whitespace tokens.
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regexLineTerminator:null,
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regexAsciiIdentifier:null,
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hashAsciiIdentifier:null,
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hashHex:null,
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regexUnicodeEscape:null,
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regexIdentifierStop:null,
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hashIdentifierStop:null,
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regexNumber:null,
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regexNewline:null,
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regexBig:null,
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regexBigAlt:null,
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tokenCount:null,
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tokenCountNoWhite:null,
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Unicode:null,
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// storeCurrentAndFetchNextToken(bool, false, false true) to get just one token
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storeCurrentAndFetchNextToken: function(noRegex, returnValue, stack, _dontStore){
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var regex = !noRegex; // TOFIX :)
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var pos = this.pos;
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var inp = this.inp;
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var shadowInp = this.shadowInp;
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var matchedNewline = false;
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do {
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if (!_dontStore) {
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++this.tokenCount;
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stack.push(returnValue);
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// did the parent Parser throw up?
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if (this.errorEscape) {
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returnValue = this.errorEscape;
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this.errorEscape = null;
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return returnValue;
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}
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}
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_dontStore = false;
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if (pos >= inp.length) {
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returnValue = {start:inp.length,stop:inp.length,name:12/*EOF*/};
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break;
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}
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var returnValue = null;
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var start = pos;
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var chr = inp[pos];
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// 1 ws 2 lt 3 scmt 4 mcmt 5/6 str 7 nr 8 rx 9 punc
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//if (true) {
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// substring method (I think this is faster..)
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var part2 = inp.substring(pos,pos+4);
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var part = this.regexBig.exec(part2);
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//} else {
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// // non-substring method (lastIndex)
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// // this method does not need a substring to apply it
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// this.regexBigAlt.lastIndex = pos;
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// var part = this.regexBigAlt.exec(inp);
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//}
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if (part[1]) { //this.regexWhiteSpace.test(chr)) { // SP, TAB, VT, FF, NBSP, BOM (, TOFIX: USP)
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++pos;
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returnValue = {start:start,stop:pos,name:9/*WHITE_SPACE*/,line:this.line,col:this.column,isWhite:true};
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++this.column;
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} else if (part[2]) { //this.regexLineTerminator.test(chr)) { // LF, CR, LS, PS
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var end = pos+1;
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if (chr=='\r' && inp[pos+1] == '\n') ++end; // support crlf=>lf
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returnValue = {start:pos,stop:end,name:10/*LINETERMINATOR*/,line:this.line,col:this.column,isWhite:true};
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pos = end;
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// mark newlines for ASI
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matchedNewline = true;
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++this.line;
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this.column = 0;
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returnValue.hasNewline = 1;
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} else if (part[3]) { //chr == '/' && inp[pos+1] == '/') {
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pos = shadowInp.indexOf('\n',pos);
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if (pos == -1) pos = inp.length;
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returnValue = {start:start,stop:pos,name:7/*COMMENT_SINGLE*/,line:this.line,col:this.column,isComment:true,isWhite:true};
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this.column = returnValue.stop;
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} else if (part[4]) { //chr == '/' && inp[pos+1] == '*') {
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var newpos = inp.indexOf('*/',pos);
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if (newpos == -1) {
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newpos = shadowInp.indexOf('\n', pos);
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if (newpos < 0) pos += 2;
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else pos = newpos;
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returnValue = {start:start,stop:pos,name:14/*error*/,value:inp.substring(start, pos),line:this.line,col:this.column,isComment:true,isWhite:true,tokenError:true,error:Tokenizer.Error.UnterminatedMultiLineComment};
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this.errorStack.push(returnValue);
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} else {
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pos = newpos+2;
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returnValue = {start:start,stop:pos,name:8/*COMMENT_MULTI*/,value:inp.substring(start, pos),line:this.line,col:this.column,isComment:true,isWhite:true};
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// multi line comments are also reason for asi, but only if they contain at least one newline (use shadow input, because all line terminators would be valid...)
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var shadowValue = shadowInp.substring(start, pos);
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var i = 0, hasNewline = 0;
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while (i < (i = shadowValue.indexOf('\n', i+1))) {
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++hasNewline;
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}
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if (hasNewline) {
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matchedNewline = true;
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returnValue.hasNewline = hasNewline;
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this.line += hasNewline;
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this.column = 0;
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} else {
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this.column = returnValue.stop;
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}
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}
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} else if (part[5]) { //chr == "'") {
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// old method
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//console.log("old method");
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var hasNewline = 0;
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do {
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// process escaped characters
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while (pos < inp.length && inp[++pos] == '\\') {
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if (shadowInp[pos+1] == '\n') ++hasNewline;
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++pos;
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}
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if (this.regexLineTerminator.test(inp[pos])) {
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returnValue = {start:start,stop:pos,name:14/*error*/,value:inp.substring(start, pos),isString:true,tokenError:true,error:Tokenizer.Error.UnterminatedDoubleStringNewline};
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this.errorStack.push(returnValue);
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break;
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}
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} while (pos < inp.length && inp[pos] != "'");
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if (returnValue) {} // error
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else if (inp[pos] != "'") {
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returnValue = {start:start,stop:pos,name:14/*error*/,value:inp.substring(start, pos),isString:true,tokenError:true,error:Tokenizer.Error.UnterminatedDoubleStringOther};
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this.errorStack.push(returnValue);
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} else {
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++pos;
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returnValue = {start:start,stop:pos,name:5/*STRING_SINGLE*/,isPrimitive:true,isString:true};
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if (hasNewline) {
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returnValue.hasNewline = hasNewline;
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this.line += hasNewline;
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this.column = 0;
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} else {
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this.column += (pos-start);
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}
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}
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} else if (part[6]) { //chr == '"') {
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var hasNewline = 0;
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// TODO: something like this: var regexmatch = /([^\']|$)+/.match();
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do {
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// process escaped chars
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while (pos < inp.length && inp[++pos] == '\\') {
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if (shadowInp[pos+1] == '\n') ++hasNewline;
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++pos;
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}
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if (this.regexLineTerminator.test(inp[pos])) {
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returnValue = {start:start,stop:pos,name:14/*error*/,value:inp.substring(start, pos),isString:true,tokenError:true,error:Tokenizer.Error.UnterminatedSingleStringNewline};
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this.errorStack.push(returnValue);
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break;
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}
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} while (pos < inp.length && inp[pos] != '"');
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if (returnValue) {}
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else if (inp[pos] != '"') {
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returnValue = {start:start,stop:pos,name:14/*error*/,value:inp.substring(start, pos),isString:true,tokenError:true,error:Tokenizer.Error.UnterminatedSingleStringOther};
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this.errorStack.push(returnValue);
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} else {
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++pos;
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returnValue = {start:start,stop:pos,name:6/*STRING_DOUBLE*/,isPrimitive:true,isString:true};
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if (hasNewline) {
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returnValue.hasNewline = hasNewline;
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this.line += hasNewline;
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this.column = 0;
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} else {
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this.column += (pos-start);
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}
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}
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} else if (part[7]) { //(chr >= '0' && chr <= '9') || (chr == '.' && inp[pos+1] >= '0' && inp[pos+1] <= '9')) {
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var nextPart = inp.substring(pos, pos+30);
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var match = nextPart.match(this.regexNumber);
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if (match[2]) { // decimal
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var value = match[2];
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var parsingOctal = value[0] == '0' && value[1] && value[1] != 'e' && value[1] != 'E' && value[1] != '.';
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if (parsingOctal) {
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returnValue = {start:start,stop:pos,name:14/*error*/,isNumber:true,isOctal:true,tokenError:true,error:Tokenizer.Error.IllegalOctalEscape,value:value};
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this.errorStack.push(returnValue);
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} else {
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returnValue = {start:start,stop:start+value.length,name:4/*NUMERIC_DEC*/,isPrimitive:true,isNumber:true,value:value};
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}
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} else if (match[1]) { // hex
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var value = match[1];
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returnValue = {start:start,stop:start+value.length,name:3/*NUMERIC_HEX*/,isPrimitive:true,isNumber:true,value:value};
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} else {
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throw 'unexpected parser errror... regex fail :(';
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}
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if (value.length < 300) {
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pos += value.length;
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} else {
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// old method of parsing numbers. only used for extremely long number literals (300+ chars).
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// this method does not require substringing... just memory :)
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var tmpReturnValue = this.oldNumberParser(pos, chr, inp, returnValue, start, Tokenizer);
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pos = tmpReturnValue[0];
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returnValue = tmpReturnValue[1];
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}
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} else if (regex && part[8]) { //chr == '/') { // regex cannot start with /* (would be multiline comment, and not make sense anyways). but if it was /* then an earlier if would have eated it. so we only check for /
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var twinfo = []; // matching {[( info
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var found = false;
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var parens = [];
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var nonLethalError = null;
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while (++pos < inp.length) {
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chr = shadowInp[pos];
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// parse RegularExpressionChar
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if (chr == '\n') {
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returnValue = {start:start,stop:pos,name:14/*error*/,tokenError:true,errorHasContent:true,error:Tokenizer.Error.UnterminatedRegularExpressionNewline};
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this.errorStack.push(returnValue);
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break; // fail
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} else if (chr == '/') {
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found = true;
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break;
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} else if (chr == '?' || chr == '*' || chr == '+') {
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nonLethalError = Tokenizer.Error.NothingToRepeat;
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} else if (chr == '^') {
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if (
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inp[pos-1] != '/' &&
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inp[pos-1] != '|' &&
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inp[pos-1] != '(' &&
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!(inp[pos-3] == '(' && inp[pos-2] == '?' && (inp[pos-1] == ':' || inp[pos-1] == '!' || inp[pos-1] == '='))
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) {
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nonLethalError = Tokenizer.Error.StartOfMatchShouldBeAtStart;
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}
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} else if (chr == '$') {
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if (inp[pos+1] != '/' && inp[pos+1] != '|' && inp[pos+1] != ')') nonLethalError = Tokenizer.Error.DollarShouldBeEnd;
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} else if (chr == '}') {
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nonLethalError = Tokenizer.Error.MissingOpeningCurly;
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} else { // it's a "character" (can be group or class), something to match
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// match parenthesis
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if (chr == '(') {
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parens.push(pos-start);
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} else if (chr == ')') {
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if (parens.length == 0) {
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nonLethalError = {start:start,stop:pos,name:14/*error*/,tokenError:true,error:Tokenizer.Error.RegexNoOpenGroups};
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} else {
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var twin = parens.pop();
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var now = pos-start;
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twinfo[twin] = now;
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twinfo[now] = twin;
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}
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}
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// first process character class
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if (chr == '[') {
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var before = pos-start;
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while (++pos < inp.length && shadowInp[pos] != '\n' && inp[pos] != ']') {
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// only newline is not allowed in class range
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// anything else can be escaped, most of it does not have to be escaped...
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if (inp[pos] == '\\') {
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if (shadowInp[pos+1] == '\n') break;
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else ++pos; // skip next char. (mainly prohibits ] to be picked up as closing the group...)
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}
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}
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if (inp[pos] != ']') {
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returnValue = {start:start,stop:pos,name:14/*error*/,tokenError:true,error:Tokenizer.Error.ClosingClassRangeNotFound};
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this.errorStack.push(returnValue);
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break;
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} else {
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var after = pos-start;
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twinfo[before] = after;
|
||
|
|
twinfo[after] = before;
|
||
|
|
}
|
||
|
|
} else if (chr == '\\' && shadowInp[pos+1] != '\n') {
|
||
|
|
// is ok anywhere in the regex (match next char literally, regardless of its otherwise special meaning)
|
||
|
|
++pos;
|
||
|
|
}
|
||
|
|
|
||
|
|
// now process repeaters (+, ? and *)
|
||
|
|
|
||
|
|
// non-collecting group (?:...) and positive (?=...) or negative (?!...) lookahead
|
||
|
|
if (chr == '(') {
|
||
|
|
if (inp[pos+1] == '?' && (inp[pos+2] == ':' || inp[pos+2] == '=' || inp[pos+2] == '!')) {
|
||
|
|
pos += 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// matching "char"
|
||
|
|
else if (inp[pos+1] == '?') ++pos;
|
||
|
|
else if (inp[pos+1] == '*' || inp[pos+1] == '+') {
|
||
|
|
++pos;
|
||
|
|
if (inp[pos+1] == '?') ++pos; // non-greedy match
|
||
|
|
} else if (inp[pos+1] == '{') {
|
||
|
|
pos += 1;
|
||
|
|
var before = pos-start;
|
||
|
|
// quantifier:
|
||
|
|
// - {n}
|
||
|
|
// - {n,}
|
||
|
|
// - {n,m}
|
||
|
|
if (!/[0-9]/.test(inp[pos+1])) {
|
||
|
|
nonLethalError = Tokenizer.Error.QuantifierRequiresNumber;
|
||
|
|
}
|
||
|
|
while (++pos < inp.length && /[0-9]/.test(inp[pos+1]));
|
||
|
|
if (inp[pos+1] == ',') {
|
||
|
|
++pos;
|
||
|
|
while (pos < inp.length && /[0-9]/.test(inp[pos+1])) ++pos;
|
||
|
|
}
|
||
|
|
if (inp[pos+1] != '}') {
|
||
|
|
nonLethalError = Tokenizer.Error.QuantifierRequiresClosingCurly;
|
||
|
|
} else {
|
||
|
|
++pos;
|
||
|
|
var after = pos-start;
|
||
|
|
twinfo[before] = after;
|
||
|
|
twinfo[after] = before;
|
||
|
|
if (inp[pos+1] == '?') ++pos; // non-greedy match
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if found=false, fail right now. otherwise try to parse an identifiername (that's all RegularExpressionFlags is..., but it's constructed in a stupid fashion)
|
||
|
|
if (!found || returnValue) {
|
||
|
|
if (!returnValue) {
|
||
|
|
returnValue = {start:start,stop:pos,name:14/*error*/,tokenError:true,error:Tokenizer.Error.UnterminatedRegularExpressionOther};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
// this is the identifier scanner, for now
|
||
|
|
do ++pos;
|
||
|
|
while (pos < inp.length && this.hashAsciiIdentifier[inp[pos]]); /*this.regexAsciiIdentifier.test(inp[pos])*/
|
||
|
|
|
||
|
|
if (parens.length) {
|
||
|
|
// nope, this is still an error, there was at least one paren that did not have a matching twin
|
||
|
|
if (parens.length > 0) returnValue = {start:start,stop:pos,name:14/*error*/,tokenError:true,error:Tokenizer.Error.RegexOpenGroup};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
} else if (nonLethalError) {
|
||
|
|
returnValue = {start:start,stop:pos,name:14/*error*/,errorHasContent:true,tokenError:true,error:nonLethalError};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
} else {
|
||
|
|
returnValue = {start:start,stop:pos,name:1/*REG_EX*/,isPrimitive:true};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
returnValue.twinfo = twinfo;
|
||
|
|
} else {
|
||
|
|
// note: operators need to be ordered from longest to smallest. regex will take care of the rest.
|
||
|
|
// no need to worry about div vs regex. if looking for regex, earlier if will have eaten it
|
||
|
|
//var result = this.regexPunctuators.exec(inp.substring(pos,pos+4));
|
||
|
|
|
||
|
|
// note: due to the regex, the single forward slash might be caught by an earlier part of the regex. so check for that.
|
||
|
|
var result = part[8] || part[9];
|
||
|
|
if (result) {
|
||
|
|
//result = result[1];
|
||
|
|
returnValue = {start:pos,stop:pos+=result.length,name:11/*PUNCTUATOR*/,value:result};
|
||
|
|
} else {
|
||
|
|
var found = false;
|
||
|
|
// identifiers cannot start with a number. but if the leading string would be a number, another if would have eaten it already for numeric literal :)
|
||
|
|
while (pos < inp.length) {
|
||
|
|
var c = inp[pos];
|
||
|
|
|
||
|
|
if (this.hashAsciiIdentifier[c]) ++pos; //if (this.regexAsciiIdentifier.test(c)) ++pos;
|
||
|
|
else if (c == '\\' && this.regexUnicodeEscape.test(inp.substring(pos,pos+6))) pos += 6; // this is like a \uxxxx
|
||
|
|
// ok, now test unicode ranges...
|
||
|
|
// basically this hardly ever happens so there's little risk of this hitting performance
|
||
|
|
// however, if you do happen to have used them, it's not a problem. the parser will support it :)
|
||
|
|
else if (this.Unicode) { // the unicode is optional.
|
||
|
|
// these chars may not be part of identifier. i want to try to prevent running the unicode regexes here...
|
||
|
|
if (this.hashIdentifierStop[c] /*this.regexIdentifierStop.test(c)*/) break;
|
||
|
|
// for most scripts, the code wont reach here. which is good, because this is going to be relatively slow :)
|
||
|
|
var Unicode = this.Unicode; // cache
|
||
|
|
if (!(
|
||
|
|
// these may all occur in an identifier... (pure a specification compliance thing :)
|
||
|
|
Unicode.Lu.test(c) || Unicode.Ll.test(c) || Unicode.Lt.test(c) || Unicode.Lm.test(c) ||
|
||
|
|
Unicode.Lo.test(c) || Unicode.Nl.test(c) || Unicode.Mn.test(c) || Unicode.Mc.test(c) ||
|
||
|
|
Unicode.Nd.test(c) || Unicode.Pc.test(c) || Unicode.sp.test(c)
|
||
|
|
)) break; // end of match.
|
||
|
|
// passed, next char
|
||
|
|
++pos;
|
||
|
|
} else break; // end of match.
|
||
|
|
|
||
|
|
found = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (found) {
|
||
|
|
returnValue = {start:start,stop:pos,name:2/*IDENTIFIER*/,value:inp.substring(start,pos)};
|
||
|
|
if (returnValue.value == 'undefined' || returnValue.value == 'null' || returnValue.value == 'true' || returnValue.value == 'false') returnValue.isPrimitive = true;
|
||
|
|
} else {
|
||
|
|
if (inp[pos] == '`') {
|
||
|
|
returnValue = {start:start,stop:pos+1,name:14/*error*/,tokenError:true,error:Tokenizer.Error.BacktickNotSupported};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
} else if (inp[pos] == '\\') {
|
||
|
|
if (inp[pos+1] == 'u') {
|
||
|
|
returnValue = {start:start,stop:pos+1,name:14/*error*/,tokenError:true,error:Tokenizer.Error.InvalidUnicodeEscape};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
} else {
|
||
|
|
returnValue = {start:start,stop:pos+1,name:14/*error*/,tokenError:true,error:Tokenizer.Error.InvalidBackslash};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
returnValue = {start:start,stop:pos+1,name:14/*error*/,tokenError:true,error:Tokenizer.Error.Unknown,value:c};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
// try to skip this char. it's not going anywhere.
|
||
|
|
}
|
||
|
|
++pos;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (returnValue) {
|
||
|
|
// note that ASI's are slipstreamed in here from the parser since the tokenizer cant determine that
|
||
|
|
// if this part ever changes, make sure you change that too :)
|
||
|
|
returnValue.tokposw = this.wtree.length;
|
||
|
|
this.wtree.push(returnValue);
|
||
|
|
if (!returnValue.isWhite) {
|
||
|
|
returnValue.tokposb = this.btree.length;
|
||
|
|
this.btree.push(returnValue);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
} while (stack && returnValue && returnValue.isWhite); // WHITE_SPACE LINETERMINATOR COMMENT_SINGLE COMMENT_MULTI
|
||
|
|
++this.tokenCountNoWhite;
|
||
|
|
|
||
|
|
this.pos = pos;
|
||
|
|
|
||
|
|
if (matchedNewline) returnValue.newline = true;
|
||
|
|
return returnValue;
|
||
|
|
},
|
||
|
|
addTokenToStreamBefore: function(token, match){
|
||
|
|
var wtree = this.wtree;
|
||
|
|
var btree = this.btree;
|
||
|
|
if (match.name == 12/*asi*/) {
|
||
|
|
token.tokposw = wtree.length;
|
||
|
|
wtree.push(token);
|
||
|
|
token.tokposb = btree.length;
|
||
|
|
btree.push(token);
|
||
|
|
} else {
|
||
|
|
token.tokposw = match.tokposw;
|
||
|
|
wtree[token.tokposw] = token;
|
||
|
|
match.tokposw += 1;
|
||
|
|
wtree[match.tokposw] = match;
|
||
|
|
|
||
|
|
if (match.tokposb) {
|
||
|
|
token.tokposb = match.tokposb;
|
||
|
|
btree[token.tokposb] = token;
|
||
|
|
match.tokposb += 1;
|
||
|
|
btree[match.tokposb] = match;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
oldNumberParser: function(pos, chr, inp, returnValue, start, Tokenizer){
|
||
|
|
++pos;
|
||
|
|
// either: 0x 0X 0 .3
|
||
|
|
if (chr == '0' && (inp[pos] == 'x' || inp[pos] == 'X')) {
|
||
|
|
// parsing hex
|
||
|
|
while (++pos < inp.length && this.hashHex[inp[pos]]); // this.regexHex.test(inp[pos]));
|
||
|
|
returnValue = {start:start,stop:pos,name:3/*NUMERIC_HEX*/,isPrimitive:true,isNumber:true};
|
||
|
|
} else {
|
||
|
|
var parsingOctal = chr == '0' && inp[pos] >= '0' && inp[pos] <= '9';
|
||
|
|
// parsing dec
|
||
|
|
if (chr != '.') { // integer part
|
||
|
|
while (pos < inp.length && inp[pos] >= '0' && inp[pos] <= '9') ++pos;
|
||
|
|
if (inp[pos] == '.') ++pos;
|
||
|
|
}
|
||
|
|
// decimal part
|
||
|
|
while (pos < inp.length && inp[pos] >= '0' && inp[pos] <= '9') ++pos;
|
||
|
|
// exponent part
|
||
|
|
if (inp[pos] == 'e' || inp[pos] == 'E') {
|
||
|
|
if (inp[++pos] == '+' || inp[pos] == '-') ++pos;
|
||
|
|
var expPosBak = pos;
|
||
|
|
while (pos < inp.length && inp[pos] >= '0' && inp[pos] <= '9') ++pos;
|
||
|
|
if (expPosBak == pos) {
|
||
|
|
returnValue = {start:start,stop:pos,name:14/*error*/,tokenError:true,error:Tokenizer.Error.NumberExponentRequiresDigits};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (returnValue.name != 14/*error*/) {
|
||
|
|
if (parsingOctal) {
|
||
|
|
returnValue = {start:start,stop:pos,name:14/*error*/,isNumber:true,isOctal:true,tokenError:true,error:Tokenizer.Error.IllegalOctalEscape};
|
||
|
|
this.errorStack.push(returnValue);
|
||
|
|
console.log("foo")
|
||
|
|
} else {
|
||
|
|
returnValue = {start:start,stop:pos,name:4/*NUMERIC_DEC*/,isPrimitive:true,isNumber:true};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return [pos, returnValue];
|
||
|
|
},
|
||
|
|
tokens: function(arrx){
|
||
|
|
arrx = arrx || [];
|
||
|
|
var n = 0;
|
||
|
|
var last;
|
||
|
|
var stack = [];
|
||
|
|
while ((last = this.storeCurrentAndFetchNextToken(!arrx[n++], false, false, true)) && last.name != 12/*EOF*/) stack.push(last);
|
||
|
|
return stack;
|
||
|
|
},
|
||
|
|
fixValues: function(){
|
||
|
|
this.wtree.forEach(function(t){
|
||
|
|
if (!t.value) t.value = this.inp.substring(t.start, t.stop);
|
||
|
|
},this);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
//#ifdef TEST_SUITE
|
||
|
|
Tokenizer.escape = function(s){
|
||
|
|
return s.replace(/\n/g,'\\n').replace(/\t/g,'\\t').replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>').replace(/\uFFFF/g, '\\uFFFF').replace(/\s/g, function(s){
|
||
|
|
// replace whitespace as is...
|
||
|
|
var ord = s.charCodeAt(0).toString(16);
|
||
|
|
switch (ord.length) {
|
||
|
|
case 1: ord = '000'+ord; break;
|
||
|
|
case 2: ord = '00'+ord; break;
|
||
|
|
case 3: ord = '0'+ord; break;
|
||
|
|
}
|
||
|
|
return '\\u'+ord;
|
||
|
|
});
|
||
|
|
};
|
||
|
|
Tokenizer.testSuite = function(arr){
|
||
|
|
var out = document.createElement('pre');
|
||
|
|
document.body.appendChild(out);
|
||
|
|
var debug = function(){
|
||
|
|
var f = document.createElement('div');
|
||
|
|
f.innerHTML = Array.prototype.slice.call(arguments).join(' ');
|
||
|
|
out.appendChild(f);
|
||
|
|
return arguments[0];
|
||
|
|
};
|
||
|
|
|
||
|
|
debug("Running test suite...",arr.length,"tests");
|
||
|
|
debug(' ');
|
||
|
|
var start = +new Date;
|
||
|
|
var ok = 0;
|
||
|
|
var fail = 0;
|
||
|
|
for (var i=0; i<arr.length; ++i) {
|
||
|
|
var test = arr[i], result;
|
||
|
|
var input = test[0];
|
||
|
|
var outputLen = test[1].length ? test[1][0] : test[1];
|
||
|
|
var regexHints = test[3] ? test[2] : null; // if flags, then len=4
|
||
|
|
var desc = test[3] || test[2];
|
||
|
|
|
||
|
|
var result = new Tokenizer(input).tokens(regexHints); // regexHints can be null, that's ok
|
||
|
|
if (result.length == outputLen) {
|
||
|
|
debug('<span class="green">Test '+i+' ok:</span>',desc);
|
||
|
|
++ok;
|
||
|
|
} else {
|
||
|
|
debug('<b class="red">Test failed:</span>',desc,'(found',result.length,'expected',outputLen+')'),console.log(desc, result);
|
||
|
|
++fail;
|
||
|
|
}
|
||
|
|
debug('<b>'+Tokenizer.escape(input)+'</b>');
|
||
|
|
debug('<br/>');
|
||
|
|
}
|
||
|
|
debug("Tokenizer test suite finished ("+(+new Date - start)+' ms). ok:'+ok+', fail:'+fail);
|
||
|
|
};
|
||
|
|
//#endif
|
||
|
|
|
||
|
|
Tokenizer.regexWhiteSpace = /[ \t\u000B\u000C\u00A0\uFFFF]/;
|
||
|
|
Tokenizer.regexLineTerminator = /[\u000A\u000D\u2028\u2029]/;
|
||
|
|
Tokenizer.regexAsciiIdentifier = /[a-zA-Z0-9\$_]/;
|
||
|
|
Tokenizer.hashAsciiIdentifier = {_:1,$:1,a:1,b:1,c:1,d:1,e:1,f:1,g:1,h:1,i:1,j:1,k:1,l:1,m:1,n:1,o:1,p:1,q:1,r:1,s:1,t:1,u:1,v:1,w:1,x:1,y:1,z:1,A:1,B:1,C:1,D:1,E:1,F:1,G:1,H:1,I:1,J:1,K:1,L:1,M:1,N:1,O:1,P:1,Q:1,R:1,S:1,T:1,U:1,V:1,W:1,X:1,Y:1,Z:1,0:1,1:1,2:1,3:1,4:1,5:1,6:1,7:1,8:1,9:1};
|
||
|
|
Tokenizer.regexHex = /[0-9A-Fa-f]/;
|
||
|
|
Tokenizer.hashHex = {0:1,1:1,2:1,3:1,4:1,5:1,6:1,7:1,8:1,9:1,a:1,b:1,c:1,d:1,e:1,f:1,A:1,B:1,C:1,D:1,E:1,F:1};
|
||
|
|
Tokenizer.regexUnicodeEscape = /u[0-9A-Fa-f]{4}/; // the \ is already checked at usage...
|
||
|
|
Tokenizer.regexIdentifierStop = /[\>\=\!\|\<\+\-\&\*\%\^\/\{\}\(\)\[\]\.\;\,\~\?\:\ \t\n\\\'\"]/;
|
||
|
|
Tokenizer.hashIdentifierStop = {'>':1,'=':1,'!':1,'|':1,'<':1,'+':1,'-':1,'&':1,'*':1,'%':1,'^':1,'/':1,'{':1,'}':1,'(':1,')':1,'[':1,']':1,'.':1,';':1,',':1,'~':1,'?':1,':':1,'\\':1,'\'':1,'"':1,' ':1,'\t':1,'\n':1};
|
||
|
|
Tokenizer.regexNewline = /\n/g;
|
||
|
|
//Tokenizer.regexPunctuators = /^(>>>=|===|!==|>>>|<<=|>>=|<=|>=|==|!=|\+\+|--|<<|>>|\&\&|\|\||\+=|-=|\*=|%=|\&=|\|=|\^=|\/=|\{|\}|\(|\)|\[|\]|\.|;|,|<|>|\+|-|\*|%|\||\&|\||\^|!|~|\?|:|=|\/)/;
|
||
|
|
Tokenizer.Unidocde = window.Unicode;
|
||
|
|
Tokenizer.regexNumber = /^(?:(0[xX][0-9A-Fa-f]+)|((?:(?:(?:(?:[0-9]+)(?:\.[0-9]*)?))|(?:\.[0-9]+))(?:[eE][-+]?[0-9]{1,})?))/;
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Tokenizer.regexNormalizeNewlines = /(\u000D[^\u000A])|[\u2028\u2029]/;
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// 1 ws 2 lt 3 scmt 4 mcmt 5/6 str 7 nr 8 rx 9 punc
|
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Tokenizer.regexBig = /^([ \t\u000B\u000C\u00A0\uFFFF])?([\u000A\u000D\u2028\u2029])?(\/\/)?(\/\*)?(')?(")?(\.?[0-9])?(?:(\/)[^=])?(>>>=|===|!==|>>>|<<=|>>=|<=|>=|==|!=|\+\+|--|<<|>>|\&\&|\|\||\+=|-=|\*=|%=|\&=|\|=|\^=|\/=|\{|\}|\(|\)|\[|\]|\.|;|,|<|>|\+|-|\*|%|\||\&|\||\^|!|~|\?|:|=|\/)?/;
|
||
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Tokenizer.regexBigAlt = /([ \t\u000B\u000C\u00A0\uFFFF])?([\u000A\u000D\u2028\u2029])?(\/\/)?(\/\*)?(')?(")?(\.?[0-9])?(?:(\/)[^=])?(>>>=|===|!==|>>>|<<=|>>=|<=|>=|==|!=|\+\+|--|<<|>>|\&\&|\|\||\+=|-=|\*=|%=|\&=|\|=|\^=|\/=|\{|\}|\(|\)|\[|\]|\.|;|,|<|>|\+|-|\*|%|\||\&|\||\^|!|~|\?|:|=|\/)?/g;
|
||
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||
|
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Tokenizer.Error = {
|
||
|
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UnterminatedSingleStringNewline: {msg:'Newlines are not allowed in string literals'},
|
||
|
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UnterminatedSingleStringOther: {msg:'Unterminated single string'},
|
||
|
|
UnterminatedDoubleStringNewline: {msg:'Newlines are not allowed in string literals'},
|
||
|
|
UnterminatedDoubleStringOther: {msg:'Unterminated double string'},
|
||
|
|
UnterminatedRegularExpressionNewline: {msg:'Newlines are not allowed in regular expressions'},
|
||
|
|
NothingToRepeat: {msg:'Used a repeat character (*?+) in a regex without something prior to it to match'},
|
||
|
|
ClosingClassRangeNotFound: {msg: 'Unable to find ] for class range'},
|
||
|
|
RegexOpenGroup: {msg: 'Open group did not find closing parenthesis'},
|
||
|
|
RegexNoOpenGroups: {msg: 'Closing parenthesis found but no group open'},
|
||
|
|
UnterminatedRegularExpressionOther: {msg:'Unterminated regular expression'},
|
||
|
|
UnterminatedMultiLineComment: {msg:'Unterminated multi line comment'},
|
||
|
|
UnexpectedIdentifier: {msg:'Unexpected identifier'},
|
||
|
|
IllegalOctalEscape: {msg:'Octal escapes are not valid'},
|
||
|
|
Unknown: {msg:'Unknown input'}, // if this happens, my parser is bad :(
|
||
|
|
NumberExponentRequiresDigits: {msg:'Numbers with exponents require at least one digit after the `e`'},
|
||
|
|
BacktickNotSupported: {msg:'The backtick is not used in js, maybe you copy/pasted from a fancy site/doc?'},
|
||
|
|
InvalidUnicodeEscape: {msg:'Encountered an invalid unicode escape, must be followed by exactly four hex numbers'},
|
||
|
|
InvalidBackslash: {msg:'Encountered a backslash where it not allowed'},
|
||
|
|
StartOfMatchShouldBeAtStart: {msg: 'The ^ signifies the start of match but was not found at a start'},
|
||
|
|
DollarShouldBeEnd: {msg: 'The $ signifies the stop of match but was not found at a stop'},
|
||
|
|
QuantifierRequiresNumber: {msg:'Quantifier curly requires at least one digit before the comma'},
|
||
|
|
QuantifierRequiresClosingCurly: {msg:'Quantifier curly requires to be closed'},
|
||
|
|
MissingOpeningCurly: {msg:'Encountered closing quantifier curly without seeing an opening curly'}
|
||
|
|
};
|