35 lines
1.0 KiB
TypeScript
35 lines
1.0 KiB
TypeScript
class Template {
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private renderFunc: Function;
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constructor(tpl: string) {
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var match: RegExpExecArray;
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var code = ['var r=[];'];
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var re = /\{\{\s*([a-zA-Z\.\_0-9()]+)\s*\}\}/m;
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while (match = re.exec(tpl)) {
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if (match.index > 0) {
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this.addLine(code, tpl.slice(0, match.index));
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}
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code.push('r.push(this.' + match[1] + ');');
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tpl = tpl.substring(match.index + match[0].length);
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}
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this.addLine(code, tpl);
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code.push('return r.join(\'\');');
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// 创建函数:
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this.renderFunc = new Function(code.join('\n'));
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}
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addLine(code: string[], text: string) {
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code.push('r.push(\'' + text.replace(/\'/g, '\\\'').replace(/\n/g, '\\n').replace(/\r/g, '\\r') + '\');');
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}
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// 用render()调用函数并绑定this参数：
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render(model: object) {
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return this.renderFunc.apply(model);
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}
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}
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export = {
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create: function(tpl: string) {
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return new Template(tpl);
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}
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}
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