35 lines
1.1 KiB
JavaScript
35 lines
1.1 KiB
JavaScript
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var Template = Class.create({
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initialize: function(template, pattern) {
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this.template = template.toString();
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this.pattern = pattern || Template.Pattern;
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},
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evaluate: function(object) {
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if (Object.isFunction(object.toTemplateReplacements))
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object = object.toTemplateReplacements();
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return this.template.gsub(this.pattern, function(match) {
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if (object == null) return '';
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var before = match[1] || '';
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if (before == '\\') return match[2];
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var ctx = object, expr = match[3];
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var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
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match = pattern.exec(expr);
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if (match == null) return before;
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while (match != null) {
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var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
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ctx = ctx[comp];
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if (null == ctx || '' == match[3]) break;
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expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
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match = pattern.exec(expr);
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}
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return before + String.interpret(ctx);
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});
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}
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});
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Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
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