template.js ➔ template - Code Metrics - DigitalState/Formio - Measure and Improve Code Quality continuously with Scrutinizer

template.js ➔ template F
last analyzed 2018-06-13 20:56 UTC

↳ Parent: formio/node_modules/lodash/template.js

Complexity

Conditions	11
Paths	256

Size

Total Lines

103

Duplication

Lines	103
Ratio	100 %

Importance

Changes

Metric	Value
cc	11
nc	256
dl	103
loc	103
rs	3.8181
c	0
b	0
f	0
nop	3

2 Functions

Rating	Name	Duplication	Size	Complexity
A	template.js ➔ ... ➔ attempt	4	4	1
B	template.js ➔ ... ➔ string.replace	24	24	4

How to fix Long Method Complexity

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');

/** Used to match empty string literals in compiled template source. */
var reEmptyStringLeading = /\b__p \+= '';/g,
    reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
    reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

/**
 * Used to match
 * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
 */
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

/** Used to ensure capturing order of template delimiters. */
var reNoMatch = /($^)/;

/** Used to match unescaped characters in compiled string literals. */
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

/**
 * Creates a compiled template function that can interpolate data properties
 * in "interpolate" delimiters, HTML-escape interpolated data properties in
 * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
 * properties may be accessed as free variables in the template. If a setting
 * object is given, it takes precedence over `_.templateSettings` values.
 *
 * **Note:** In the development build `_.template` utilizes
 * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
 * for easier debugging.
 *
 * For more information on precompiling templates see
 * [lodash's custom builds documentation](https://lodash.com/custom-builds).
 *
 * For more information on Chrome extension sandboxes see
 * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category String
 * @param {string} [string=''] The template string.
 * @param {Object} [options={}] The options object.
 * @param {RegExp} [options.escape=_.templateSettings.escape]
 *  The HTML "escape" delimiter.
 * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
 *  The "evaluate" delimiter.
 * @param {Object} [options.imports=_.templateSettings.imports]
 *  An object to import into the template as free variables.
 * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
 *  The "interpolate" delimiter.
 * @param {string} [options.sourceURL='templateSources[n]']
 *  The sourceURL of the compiled template.
 * @param {string} [options.variable='obj']
 *  The data object variable name.
 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
 * @returns {Function} Returns the compiled template function.
 * @example
 *
 * // Use the "interpolate" delimiter to create a compiled template.
 * var compiled = _.template('hello <%= user %>!');
 * compiled({ 'user': 'fred' });
 * // => 'hello fred!'
 *
 * // Use the HTML "escape" delimiter to escape data property values.
 * var compiled = _.template('<b><%- value %></b>');
 * compiled({ 'value': '<script>' });
 * // => '<b>&lt;script&gt;</b>'
 *
 * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
 * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
 * compiled({ 'users': ['fred', 'barney'] });
 * // => '<li>fred</li><li>barney</li>'
 *
 * // Use the internal `print` function in "evaluate" delimiters.
 * var compiled = _.template('<% print("hello " + user); %>!');
 * compiled({ 'user': 'barney' });
 * // => 'hello barney!'
 *
 * // Use the ES template literal delimiter as an "interpolate" delimiter.
 * // Disable support by replacing the "interpolate" delimiter.
 * var compiled = _.template('hello ${ user }!');
 * compiled({ 'user': 'pebbles' });
 * // => 'hello pebbles!'
 *
 * // Use backslashes to treat delimiters as plain text.
 * var compiled = _.template('<%= "\\<%- value %\\>" %>');
 * compiled({ 'value': 'ignored' });
 * // => '<%- value %>'
 *
 * // Use the `imports` option to import `jQuery` as `jq`.
 * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
 * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
 * compiled({ 'users': ['fred', 'barney'] });
 * // => '<li>fred</li><li>barney</li>'
 *
 * // Use the `sourceURL` option to specify a custom sourceURL for the template.
 * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
 * compiled(data);
 * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
 *
 * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
 * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
 * compiled.source;
 * // => function(data) {
 * //   var __t, __p = '';
 * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
 * //   return __p;
 * // }
 *
 * // Use custom template delimiters.
 * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
 * var compiled = _.template('hello {{ user }}!');
 * compiled({ 'user': 'mustache' });
 * // => 'hello mustache!'
 *
 * // Use the `source` property to inline compiled templates for meaningful
 * // line numbers in error messages and stack traces.
 * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
 *   var JST = {\
 *     "main": ' + _.template(mainText).source + '\
 *   };\
 * ');
 */
function template(string, options, guard) {
  // Based on John Resig's `tmpl` implementation
  // (http://ejohn.org/blog/javascript-micro-templating/)
  // and Laura Doktorova's doT.js (https://github.com/olado/doT).
  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 += '";

  // Compile the regexp to match each delimiter.
  var reDelimiters = RegExp(
    (options.escape || reNoMatch).source + '|' +
    interpolate.source + '|' +
    (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
    (options.evaluate || reNoMatch).source + '|$'
  , 'g');

  // Use a sourceURL for easier debugging.
  var sourceURL = 'sourceURL' in options ? '//# sourceURL=' + options.sourceURL + '\n' : '';

  string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
    interpolateValue || (interpolateValue = esTemplateValue);

    // Escape characters that can't be included in string literals.
    source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

    // Replace delimiters with snippets.
    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;

    // The JS engine embedded in Adobe products needs `match` returned in
    // order to produce the correct `offset` value.
    return match;
  });

  source += "';\n";

  // If `variable` is not specified wrap a with-statement around the generated
  // code to add the data object to the top of the scope chain.
  var variable = options.variable;
  if (!variable) {
    source = 'with (obj) {\n' + source + '\n}\n';
  }
  // Cleanup code by stripping empty strings.
  source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
    .replace(reEmptyStringMiddle, '$1')
    .replace(reEmptyStringTrailing, '$1;');

  // Frame code as the function body.
  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);
  });

  // Provide the compiled function's source by its `toString` method or
  // the `source` property as a convenience for inlining compiled templates.
  result.source = source;
  if (isError(result)) {
    throw result;
  }
  return result;
}

module.exports = template;


1	View Code Duplication	var assignInWith = require('./assignInWith'),
2		attempt = require('./attempt'),
3		baseValues = require('./_baseValues'),
4		customDefaultsAssignIn = require('./_customDefaultsAssignIn'),
5		escapeStringChar = require('./_escapeStringChar'),
6		isError = require('./isError'),
7		isIterateeCall = require('./_isIterateeCall'),
8		keys = require('./keys'),
9		reInterpolate = require('./_reInterpolate'),
10		templateSettings = require('./templateSettings'),
11		toString = require('./toString');
12
13		/** Used to match empty string literals in compiled template source. */
14		var reEmptyStringLeading = /\b__p \+= '';/g,
15		reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
16		reEmptyStringTrailing = /(__e\(.*?\)\|\b__t\)) \+\n'';/g;
17
18		/**
19		* Used to match
20		* [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
21		*/
22		var reEsTemplate = /\$\{([^\\}](?:\\.[^\\}])*)\}/g;
23
24		/** Used to ensure capturing order of template delimiters. */
25		var reNoMatch = /($^)/;
26
27		/** Used to match unescaped characters in compiled string literals. */
28		var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
29
30		/**
31		* Creates a compiled template function that can interpolate data properties
32		* in "interpolate" delimiters, HTML-escape interpolated data properties in
33		* "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
34		* properties may be accessed as free variables in the template. If a setting
35		* object is given, it takes precedence over `_.templateSettings` values.
36		*
37		* Note: In the development build `_.template` utilizes
38		* [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
39		* for easier debugging.
40		*
41		* For more information on precompiling templates see
42		* [lodash's custom builds documentation](https://lodash.com/custom-builds).
43		*
44		* For more information on Chrome extension sandboxes see
45		* [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
46		*
47		* @static
48		* @since 0.1.0
49		* @memberOf _
50		* @category String
51		* @param {string} [string=''] The template string.
52		* @param {Object} [options={}] The options object.
53		* @param {RegExp} [options.escape=_.templateSettings.escape]
54		* The HTML "escape" delimiter.
55		* @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
56		* The "evaluate" delimiter.
57		* @param {Object} [options.imports=_.templateSettings.imports]
58		* An object to import into the template as free variables.
59		* @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
60		* The "interpolate" delimiter.
61		* @param {string} [options.sourceURL='templateSources[n]']
62		* The sourceURL of the compiled template.
63		* @param {string} [options.variable='obj']
64		* The data object variable name.
65		* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
66		* @returns {Function} Returns the compiled template function.
67		* @example
68		*
69		* // Use the "interpolate" delimiter to create a compiled template.
70		* var compiled = _.template('hello <%= user %>!');
71		* compiled({ 'user': 'fred' });
72		* // => 'hello fred!'
73		*
74		* // Use the HTML "escape" delimiter to escape data property values.
75		* var compiled = _.template('<b><%- value %></b>');
76		* compiled({ 'value': '<script>' });
77		* // => '<b><script></b>'
78		*
79		* // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
80		* var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
81		* compiled({ 'users': ['fred', 'barney'] });
82		* // => '<li>fred</li><li>barney</li>'
83		*
84		* // Use the internal `print` function in "evaluate" delimiters.
85		* var compiled = _.template('<% print("hello " + user); %>!');
86		* compiled({ 'user': 'barney' });
87		* // => 'hello barney!'
88		*
89		* // Use the ES template literal delimiter as an "interpolate" delimiter.
90		* // Disable support by replacing the "interpolate" delimiter.
91		* var compiled = _.template('hello ${ user }!');
92		* compiled({ 'user': 'pebbles' });
93		* // => 'hello pebbles!'
94		*
95		* // Use backslashes to treat delimiters as plain text.
96		* var compiled = _.template('<%= "\\<%- value %\\>" %>');
97		* compiled({ 'value': 'ignored' });
98		* // => '<%- value %>'
99		*
100		* // Use the `imports` option to import `jQuery` as `jq`.
101		* var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
102		* var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
103		* compiled({ 'users': ['fred', 'barney'] });
104		* // => '<li>fred</li><li>barney</li>'
105		*
106		* // Use the `sourceURL` option to specify a custom sourceURL for the template.
107		* var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
108		* compiled(data);
109		* // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
110		*
111		* // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
112		* var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
113		* compiled.source;
114		* // => function(data) {
115		* // var __t, __p = '';
116		* // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
117		* // return __p;
118		* // }
119		*
120		* // Use custom template delimiters.
121		* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
122		* var compiled = _.template('hello {{ user }}!');
123		* compiled({ 'user': 'mustache' });
124		* // => 'hello mustache!'
125		*
126		* // Use the `source` property to inline compiled templates for meaningful
127		* // line numbers in error messages and stack traces.
128		* fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
129		* var JST = {\
130		* "main": ' + _.template(mainText).source + '\
131		* };\
132		* ');
133		*/
134		function template(string, options, guard) {
135		// Based on John Resig's `tmpl` implementation
136		// (http://ejohn.org/blog/javascript-micro-templating/)
137		// and Laura Doktorova's doT.js (https://github.com/olado/doT).
138		var settings = templateSettings.imports._.templateSettings \|\| templateSettings;
139
140		if (guard && isIterateeCall(string, options, guard)) {
141		options = undefined;
142		}
143		string = toString(string);
144		options = assignInWith({}, options, settings, customDefaultsAssignIn);
145
146		var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
147		importsKeys = keys(imports),
148		importsValues = baseValues(imports, importsKeys);
149
150		var isEscaping,
151		isEvaluating,
152		index = 0,
153		interpolate = options.interpolate \|\| reNoMatch,
154		source = "__p += '";
155
156		// Compile the regexp to match each delimiter.
157		var reDelimiters = RegExp(
158		(options.escape \|\| reNoMatch).source + '\|' +
159		interpolate.source + '\|' +
160		(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '\|' +
161		(options.evaluate \|\| reNoMatch).source + '\|$'
162		, 'g');
163
164		// Use a sourceURL for easier debugging.
165		var sourceURL = 'sourceURL' in options ? '//# sourceURL=' + options.sourceURL + '\n' : '';
166
167		string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
168		interpolateValue \|\| (interpolateValue = esTemplateValue);
169
170		// Escape characters that can't be included in string literals.
171		source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
172
173		// Replace delimiters with snippets.
174		if (escapeValue) {
175		isEscaping = true;
176		source += "' +\n__e(" + escapeValue + ") +\n'";
177		}
178		if (evaluateValue) {
179		isEvaluating = true;
180		source += "';\n" + evaluateValue + ";\n__p += '";
181		}
182		if (interpolateValue) {
183		source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
184		}
185		index = offset + match.length;
186
187		// The JS engine embedded in Adobe products needs `match` returned in
188		// order to produce the correct `offset` value.
189		return match;
190		});
191
192		source += "';\n";
193
194		// If `variable` is not specified wrap a with-statement around the generated
195		// code to add the data object to the top of the scope chain.
196		var variable = options.variable;
197		if (!variable) {
198		source = 'with (obj) {\n' + source + '\n}\n';
199		}
200		// Cleanup code by stripping empty strings.
201		source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
202		.replace(reEmptyStringMiddle, '$1')
203		.replace(reEmptyStringTrailing, '$1;');
204
205		// Frame code as the function body.
206		source = 'function(' + (variable \|\| 'obj') + ') {\n' +
207		(variable
208		? ''
209		: 'obj \|\| (obj = {});\n'
210		) +
211		"var __t, __p = ''" +
212		(isEscaping
213		? ', __e = _.escape'
214		: ''
215		) +
216		(isEvaluating
217		? ', __j = Array.prototype.join;\n' +
218		"function print() { __p += __j.call(arguments, '') }\n"
219		: ';\n'
220		) +
221		source +
222		'return __p\n}';
223
224		var result = attempt(function() {
225		return Function(importsKeys, sourceURL + 'return ' + source)
		0 ignored issues – show Performance Best Practice introduced 2018-04-11 17:12 UTC by Report Bug Copy Issue Report Using `new Function()` to create a function is slow and difficult to debug. Such functions do not create a closure. Consider using another way to define your function. Loading history...
226		.apply(undefined, importsValues);
227		});
228
229		// Provide the compiled function's source by its `toString` method or
230		// the `source` property as a convenience for inlining compiled templates.
231		result.source = source;
232		if (isError(result)) {
233		throw result;
234		}
235		return result;
236		}
237
238		module.exports = template;
239

DigitalState / Formio

template.js ➔ template F last analyzed 2018-06-13 20:56 UTC

Complexity

Size

Duplication

Importance

2 Functions

How to fix Long Method Complexity

Long Method

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template.js ➔ template F
last analyzed 2018-06-13 20:56 UTC