@apicart/brackets/src/render/compiler/compileTemplate.js

Small, flexible, easy to use, component-oriented javascript template engine.

import {templateLiteral} from '../../shared/variables';
import {utils} from '../../shared/utils';
import {processVariable} from './processors/procesVariable';
import {processMacro} from './processors/processMacro';
import {getMacros} from '../runtime/macros';


var variableMatchRegularExpression = /^\$/;

/**
 * @param {{}} tokens
 * @param {{}} templateParametersNames
 * @return {Function}
 */
export function compileTemplate(tokens, templateParametersNames) {
	var
		macroTokenArray,
		macroTokenFirstPart,
		templateString = 'var _template = \'\';' + _templateAdd.toString() + ';';

	utils.each(tokens.text, function (tokenKey, tokenText) {
		templateString += '_template += _templateAdd(' + templateLiteral + tokenText + templateLiteral + ');';

		if (tokenKey in tokens.macros) {
			macroTokenArray = tokens.macros[tokenKey];
			macroTokenFirstPart = macroTokenArray[0];

			if (macroTokenFirstPart.match(variableMatchRegularExpression)) {
				templateString += processVariable(macroTokenArray);

			} else if (macroTokenFirstPart in getMacros()) {
				templateString += processMacro(macroTokenArray);

			} else {
				throw 'Unknown token: "' + macroTokenFirstPart + '"';
			}
		}
	});

	templateString += 'return _template;';

	return new Function(templateParametersNames.join(','), templateString);
}


/**
 * _runtime is provided in the template
 * @param {*} data
 * @param {string} filter
 * @return {*}
 * @private
 */
function _templateAdd(data, filter) {
	/* eslint-disable-next-line no-undef */
	return _runtime.templateAdd(data, filter);
}