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Simplify lodash underscore build's _.template.

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Former-commit-id: d3f98bf310f5ef7c06cacb7716fc0999440d411b
This commit is contained in:
John-David Dalton
2012-10-18 00:51:26 -07:00
parent 782df659bc
commit 0dcc35152c
1 changed files with 58 additions and 2 deletions
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60
build.js
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@@ -976,6 +976,7 @@
dependencyMap.isEqual = ['isArray', 'isFunction'];
dependencyMap.isEmpty = ['isArray', 'isString'];
dependencyMap.pick = [];
dependencyMap.template = ['defaults', 'escape'];
if (useUnderscoreClone) {
dependencyMap.clone = ['extend', 'isArray'];
@@ -1034,6 +1035,7 @@
var lodash = !isTemplate && (function() {
var context = vm.createContext({
'clearTimeout': clearTimeout,
'console': console,
'setTimeout': setTimeout
});
@@ -1342,11 +1344,65 @@
});
}());
// remove "compiled template cleanup" from `_.template`
source = source.replace(/(?:\s*\/\/.*)*\n *source *=.+?isEvaluating.+?reEmptyStringLeading[\s\S]+?\);/, '');
// replace `_.template`
source = source.replace(/^( +)function template[\s\S]+?\n\1}/m, function() {
return [
' function template(text, data, options) {',
" text || (text = '');",
' options = defaults({}, options, lodash.templateSettings);',
'',
' var index = 0,',
' source = "__p += \'",',
" variable = options.variable;",
'',
' var reDelimiters = RegExp(',
" (options.escape || reNoMatch).source + '|' +",
" (options.interpolate || reNoMatch).source + '|' +",
" (options.evaluate || reNoMatch).source + '|$'",
" , 'g');",
'',
' text.replace(reDelimiters, function(match, escapeValue, interpolateValue, evaluateValue, offset) {',
' source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);',
' source +=',
' escapeValue ? "\' +\\n_.escape(" + escapeValue + ") +\\n\'" :',
' evaluateValue ? "\';\\n" + evaluateValue + ";\\n__p += \'" :',
' interpolateValue ? "\' +\\n((__t = (" + interpolateValue + ")) == null ? \'\' : __t) +\\n\'" : \'\';',
'',
' index = offset + match.length;',
' });',
'',
' source += "\';\\n";',
' if (!variable) {',
" variable = 'obj';",
" source = 'with (' + variable + ' || {}) {\\n' + source + '\\n}\\n';",
' }',
" source = 'function(' + variable + ') {\\n' +",
" 'var __t, __p = \\'\\', __j = Array.prototype.join;\\n' +",
" 'function print() { __p += __j.call(arguments, \\'\\') }\\n' +",
' source +',
" 'return __p\\n}';",
'',
' try {',
" var result = Function('_', 'return ' + source)(lodash);",
' } catch(e) {',
' e.source = source;',
' throw e;',
' }',
' if (data) {',
' return result(data);',
' }',
' result.source = source;',
' return result;',
' }'
].join('\n');
});
// remove unneeded template related variables
source = removeVar(source, 'reComplexDelimiter');
source = removeVar(source, 'reEmptyStringLeading');
source = removeVar(source, 'reEmptyStringMiddle');
source = removeVar(source, 'reEmptyStringTrailing');
source = removeVar(source, 'reInsertVariable');
}
else {
source = removeIsArgumentsFallback(source);