wycats
95 lines
1.9 KiB
JavaScript
95 lines
1.9 KiB
JavaScript
var Handlebars = {};
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// BEGIN(BROWSER)
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Handlebars.Lexer = function() {};
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Handlebars.Lexer.prototype = {
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setInput: function(input) {
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this.input = input;
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this.matched = this.match = '';
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this.yylineno = 0;
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},
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setupLex: function() {
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this.yyleng = 0;
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this.yytext = '';
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this.match = '';
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this.readchars = 0;
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},
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getchar: function(n) {
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n = n || 1;
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var chars = "", chr = "";
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for(var i=0; i<n; i++) {
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chr = this.input[0];
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chars += chr;
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this.yytext += chr;
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this.yyleng++;
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this.matched += chr;
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this.match += chr;
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if(chr === "\n") this.yylineno++;
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this.input = this.input.slice(1);
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}
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return chr;
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},
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readchar: function(n, ignore) {
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n = n || 1;
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var chr;
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for(var i=0; i<n; i++) {
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chr = this.input[i];
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if(chr === "\n") this.yylineno++;
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this.matched += chr;
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this.match += chr;
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if(ignore) { this.readchars++; }
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}
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this.input = this.input.slice(n);
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},
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ignorechar: function(n) {
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this.readchar(n, true);
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},
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peek: function(n) {
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return this.input.slice(0, n || 1);
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},
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pastInput:function () {
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var past = this.matched.substr(0, this.matched.length - this.match.length);
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return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
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},
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upcomingInput:function () {
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var next = this.match;
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if (next.length < 20) {
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next += this.input.substr(0, 20-next.length);
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}
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return (next.substr(0,20)+(next.length > 20 ? '...':'')).replace(/\n/g, "");
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},
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showPosition:function () {
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var pre = this.pastInput();
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var c = new Array(pre.length + 1 + this.readchars).join("-");
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return pre + this.upcomingInput() + "\n" + c+"^";
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},
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};
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Handlebars.Visitor = function() {};
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Handlebars.Visitor.prototype = {
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accept: function(object) {
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return this[object.type](object);
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}
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}
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// END(BROWSER)
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exports.Lexer = Handlebars.Lexer;
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exports.Visitor = Handlebars.Visitor;
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