extract-from-css - npm Package Compare versions

Comparing version 0.3.1 to 0.4.0

lib/extract-classes-from-rules.js

@@ -5,6 +5,3 @@
 /**
- * dot followed by multiple ocurrences of:
- *   - alphabetical letter, underscore or dash, or
- *   - non-ascii character, or
- *   - escaped character
+ * dot followed by an identifier
  * @type {RegExp}
@@ -30,2 +27,7 @@ */
 
+/**
+ * Extracts class names from CSS rules (as AST)
+ * @param  {Object} rules
+ * @return {Array.<string>} list of class names in those rules
+ */
 function extractClassNamesFromRules(rules) {
@@ -32,0 +34,0 @@ var rule;

lib/extract-ids-from-rules.js

@@ -5,6 +5,3 @@
 /**
- * number sign followed by multiple ocurrences of:
- *   - alphabetical letter, underscore or dash, or
- *   - non-ascii character, or
- *   - escaped character
+ * number sign followed by an identifier
  * @type {RegExp}
@@ -30,2 +27,7 @@ */
 
+/**
+ * Extracts ids from CSS rules (as AST)
+ * @param  {Object} rules
+ * @return {Array.<string>} list of ids in those rules
+ */
 function extractIdsFromRules(rules) {
@@ -32,0 +34,0 @@ var rule;

lib/index.js

 
 var cssParser = require('css');
+
 var extractClassesFromRules = require('./extract-classes-from-rules');
@@ -28,5 +29,31 @@ var extractIdsFromRules = require('./extract-ids-from-rules');
 
-module.exports = {
-  extractClasses: extractClasses,
-  extractIds: extractIds
-};
+var extractMethods = {
+  extractClassesFromRules: extractClassesFromRules,
+  extractIdsFromRules: extractIdsFromRules
+};
+
+function capitalize(string) {
+  return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
+}
+
+function extract(features, code) {
+  var ast = cssParser.parse(code);
+  var rules = ast.stylesheet.rules;
+  var method, methodName, feature;
+  var result = {};
+  var i = 0;
+  while (feature = features[i++]) {
+    methodName = 'extract' + capitalize(feature) + 'FromRules';
+    if (method = extractMethods[methodName]) {
+      result[feature] = method(rules);
+    } else {
+      throw new Error('Unsupported feature ' + feature);
+    }
+  }
+  return result;
+}
+
+extract.extractClasses = extractClasses;
+extract.extractIds = extractIds;
+
+module.exports = extract;

package.json

 {
   "name": "extract-from-css",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "description": "Extract information from CSS code",
@@ -5,0 +5,0 @@ "main": "lib/index.js",

README.md

@@ -22,8 +22,17 @@ # Extract from CSS
 var extract = require('extract-from-css');
-var code = '.list-item { background: red; } ' +
-    '/* comment */ ' +
-    '#main-header { background: black; } ' +
-    '.list-item-title:hover { font-weight: bold}';
+
+var code = '.list-item { background: red; } \
+  /* comment */ \
+  #main-header { background: black; } \
+  .list-item-title:hover { font-weight: bold; } ';
+
+extract(['ids', 'classes'], code);
+// {
+//   ids: [ 'main-header' ],
+//   classes: [ 'list-item', 'list-item-title' ]
+// }
+
 extract.extractClasses(code);
 // [ 'list-item', 'list-item-title' ]
+
 extract.extractIds(code);
@@ -30,0 +39,0 @@ // [ 'main-header' ]

test/benchmark.js

@@ -18,7 +18,8 @@
 samples.forEach(function(sample, index) {
+  suite.add('extract ids and classes from sample #' + index, function() {
+    extract(['ids', 'classes'], sample);
+  });
   suite.add('extractClasses from sample #' + index, function() {
     extractClasses(sample);
   });
-});
-samples.forEach(function(sample, index) {
   suite.add('extractIds from sample #' + index, function() {
@@ -30,5 +31,10 @@ extractIds(sample);
 suite.on('cycle', function(event) {
-  console.log(String(event.target));
+  var stats = event.target.stats;
+  var showStats = ['mean', 'deviation'];
+  var statsSummary = showStats.map(function(statName) {
+    return statName + '=' + stats[statName].toFixed(4);
+  });
+  console.log(event.target.name + ' (' + statsSummary.join(', ') + ')');
 });
 
 suite.run();

No alert changes

Improved metrics

Total package byte prevSize

567337

increased by0.37%

Number of package files

15

increased by7.14%

Lines of code

738

increased by8.37%

Number of lines in readme file

88

increased by11.39%

No dependency changes