regjsgen - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2

package.json

 {
   "name": "regjsgen",
   "description": "Generating JavaScript RegExps in JavaScript",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "author": "Benjamin Tan <[e-mail]> (https://d10.github.io/)",
@@ -18,5 +18,2 @@ "license": "MIT",
   },
-  "dependencies": {
-    "jsesc": "~0.4.3"
-  },
   "scripts": {
@@ -26,4 +23,5 @@ "test": "node test/index.js"
   "devDependencies": {
-    "got": "~0.3.0"
+    "got": "~1.2.0",
+    "jsesc": "~0.5.0"
   }
 }

README.md

 # RegJSGen
 
-Generating `RegExp`s from RegJSParser's AST.
+Generating `RegExp`s from RegJSParser’s AST.
 
-## Installation
+## Install
 
 ```bash
-npm install regjsgen
+npm install --save regjsgen
 ```
@@ -14,3 +14,11 @@
 ```js
-var generate = require('regjsgen').generate;
+var regjsgen = require('regjsgen');
+// With `regjsparser`
+var regjsparser = require('regjsparser');
+var regex = '^a$';
+var ast = regjsparser.parse(regex);
+// Modify AST
+// ...
+// Regenerate `RegExp`
+regex = regjsgen.generate(ast);
 ```
@@ -29,5 +37,5 @@
 ```bash
-node test/create_ref.js
+node test/update_fixture.js
 ```
 
 from the repo top directory.

regjsgen.js

@@ -79,2 +79,22 @@ /*!
 
+  function assertType(type, expected) {
+    if (expected.indexOf('|') == -1) {
+      if (type == expected) {
+        return;
+      }
+
+      throw Error('Invalid node type: ' + type);
+    }
+
+    expected = assertType.hasOwnProperty(expected)
+      ? assertType[expected]
+      : (assertType[expected] = RegExp('^(?:' + expected + ')$'));
+
+    if (expected.test(type)) {
+      return;
+    }
+
+    throw Error('Invalid node type: ' + type);
+  }
+
   /*--------------------------------------------------------------------------*/
@@ -95,8 +115,4 @@
   function generateAlternative(node) {
-    var type = node.type;
+    assertType(node.type, 'alternative');
 
-    if (type != 'alternative') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var terms = node.body,
@@ -120,8 +136,4 @@ length = terms ? terms.length : 0;
   function generateAnchor(node) {
-    var type = node.type;
+    assertType(node.type, 'anchor');
 
-    if (type != 'anchor') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     switch (node.kind) {
@@ -142,8 +154,4 @@ case 'start':
   function generateAtom(node) {
-    var type = node.type;
+    assertType(node.type, 'anchor|characterClass|characterClassEscape|dot|group|ref|value');
 
-    if (!/^(?:anchor|characterClass(?:Escape)?|dot|group|ref|value)$/.test(type)) {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return generate(node);
@@ -153,8 +161,4 @@ }
   function generateCharacterClass(node) {
-    var type = node.type;
+    assertType(node.type, 'characterClass');
 
-    if (type != 'characterClass') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var classRanges = node.body,
@@ -180,8 +184,4 @@ length = classRanges ? classRanges.length : 0;
   function generateCharacterClassEscape(node) {
-    var type = node.type;
+    assertType(node.type, 'characterClassEscape');
 
-    if (type != 'characterClassEscape') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return '\\' + node.value;
@@ -191,8 +191,4 @@ }
   function generateCharacterClassRange(node) {
-    var type = node.type;
+    assertType(node.type, 'characterClassRange');
 
-    if (type != 'characterClassRange') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var min = node.min,
@@ -209,8 +205,4 @@ max = node.max;
   function generateClassAtom(node) {
-    var type = node.type;
+    assertType(node.type, 'anchor|characterClassEscape|characterClassRange|dot|value');
 
-    if (!/^(?:anchor|characterClassEscape|characterClassRange|dot|value)$/.test(type)) {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return generate(node);
@@ -220,8 +212,4 @@ }
   function generateDisjunction(node) {
-    var type = node.type;
+    assertType(node.type, 'disjunction');
 
-    if (type != 'disjunction') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var body = node.body,
@@ -250,8 +238,4 @@ length = body ? body.length : 0;
   function generateDot(node) {
-    var type = node.type;
+    assertType(node.type, 'dot');
 
-    if (type != 'dot') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return '.';
@@ -261,8 +245,4 @@ }
   function generateGroup(node) {
-    var type = node.type;
+    assertType(node.type, 'group');
 
-    if (type != 'group') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var result = '(';
@@ -305,8 +285,4 @@
   function generateQuantifier(node) {
-    var type = node.type;
+    assertType(node.type, 'quantifier');
 
-    if (type != 'quantifier') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var quantifier = '',
@@ -317,2 +293,3 @@ min = node.min,
     switch (max) {
+      case undefined:
       case null:
@@ -351,8 +328,4 @@ switch (min) {
   function generateRef(node) {
-    var type = node.type;
+    assertType(node.type, 'ref');
 
-    if (type != 'ref') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return '\\' + node.ref;
@@ -362,8 +335,4 @@ }
   function generateTerm(node) {
-    var type = node.type;
+    assertType(node.type, 'anchor|characterClass|characterClassEscape|empty|group|quantifier|ref|value');
 
-    if (!/^(?:anchor|characterClass(?:Escape)?|empty|group|quantifier|ref|value)$/.test(type)) {
-      throw Error('Invalid node type: ' + type);
-    }
-
     return generate(node);
@@ -373,8 +342,4 @@ }
   function generateValue(node) {
-    var type = node.type;
+    assertType(node.type, 'value');
 
-    if (type != 'value') {
-      throw Error('Invalid node type: ' + type);
-    }
-
     var kind = node.kind,
@@ -381,0 +346,0 @@ codePoint = node.codePoint;

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Dependency count

0

decreased by-100%

Number of lines in readme file

40

increased by25%

Worsened metrics

Total package byte prevSize

12644

decreased by-2.87%

Dev dependency count

2

increased by100%

Lines of code

334

decreased by-7.22%

Dependency changes

• - Removedjsesc@~0.4.3

• - Removedjsesc@0.4.3(transitive)