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- var assignInWith = require('./assignInWith'),
- attempt = require('./attempt'),
- baseValues = require('./_baseValues'),
- customDefaultsAssignIn = require('./_customDefaultsAssignIn'),
- escapeStringChar = require('./_escapeStringChar'),
- isError = require('./isError'),
- isIterateeCall = require('./_isIterateeCall'),
- keys = require('./keys'),
- reInterpolate = require('./_reInterpolate'),
- templateSettings = require('./templateSettings'),
- toString = require('./toString');
-
-
- var reEmptyStringLeading = /\b__p \+= '';/g,
- reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
- reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
-
-
- var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
-
-
- var reNoMatch = /($^)/;
-
-
- var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
-
-
- function template(string, options, guard) {
-
-
-
- var settings = templateSettings.imports._.templateSettings || templateSettings;
-
- if (guard && isIterateeCall(string, options, guard)) {
- options = undefined;
- }
- string = toString(string);
- options = assignInWith({}, options, settings, customDefaultsAssignIn);
-
- var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
- importsKeys = keys(imports),
- importsValues = baseValues(imports, importsKeys);
-
- var isEscaping,
- isEvaluating,
- index = 0,
- interpolate = options.interpolate || reNoMatch,
- source = "__p += '";
-
-
- var reDelimiters = RegExp(
- (options.escape || reNoMatch).source + '|' +
- interpolate.source + '|' +
- (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
- (options.evaluate || reNoMatch).source + '|$'
- , 'g');
-
-
- var sourceURL = 'sourceURL' in options ? '//# sourceURL=' + options.sourceURL + '\n' : '';
-
- string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
- interpolateValue || (interpolateValue = esTemplateValue);
-
-
- source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
-
-
- if (escapeValue) {
- isEscaping = true;
- source += "' +\n__e(" + escapeValue + ") +\n'";
- }
- if (evaluateValue) {
- isEvaluating = true;
- source += "';\n" + evaluateValue + ";\n__p += '";
- }
- if (interpolateValue) {
- source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
- }
- index = offset + match.length;
-
-
-
- return match;
- });
-
- source += "';\n";
-
-
-
- var variable = options.variable;
- if (!variable) {
- source = 'with (obj) {\n' + source + '\n}\n';
- }
-
- source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
- .replace(reEmptyStringMiddle, '$1')
- .replace(reEmptyStringTrailing, '$1;');
-
-
- source = 'function(' + (variable || 'obj') + ') {\n' +
- (variable
- ? ''
- : 'obj || (obj = {});\n'
- ) +
- "var __t, __p = ''" +
- (isEscaping
- ? ', __e = _.escape'
- : ''
- ) +
- (isEvaluating
- ? ', __j = Array.prototype.join;\n' +
- "function print() { __p += __j.call(arguments, '') }\n"
- : ';\n'
- ) +
- source +
- 'return __p\n}';
-
- var result = attempt(function() {
- return Function(importsKeys, sourceURL + 'return ' + source)
- .apply(undefined, importsValues);
- });
-
-
-
- result.source = source;
- if (isError(result)) {
- throw result;
- }
- return result;
- }
-
- module.exports = template;
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