magic-string - npm Package Compare versions

Comparing version 0.1.1 to 0.1.3

CHANGELOG.md

 # changelog
 
+## 0.1.3
+
+* `s.trim()` returns `this` (i.e. is chainable)
+
+## 0.1.2
+
+* Implement `s.slice()`
+
 ## 0.1.1
@@ -4,0 +12,0 @@

lib/index.js

@@ -136,3 +136,3 @@ var guessIndent = require( './guessIndent' ),
 
-		d = content.length - ( end - start );
+		d = content.length - ( lastChar + 1 - firstChar );
 
@@ -144,2 +144,15 @@ blank( this.mappings, start, end );
 
+	slice: function ( start, end ) {
+		var firstChar, lastChar;
+
+		firstChar = this.locate( start );
+		lastChar = this.locate( end );
+
+		if ( firstChar === null || lastChar === null ) {
+			throw new Error( 'Cannot use replaced characters as slice anchors' );
+		}
+
+		return this.str.slice( firstChar, lastChar );
+	},
+
 	toString: function () {
@@ -193,2 +206,4 @@ return this.str;
 			});
+
+		return this;
 	}
@@ -195,0 +210,0 @@ };

package.json

 {
   "name": "magic-string",
   "author": "Rich Harris",
-  "version": "0.1.1",
+  "version": "0.1.3",
   "main": "index.js",
@@ -6,0 +6,0 @@ "license": "MIT",

README.md

@@ -87,2 +87,6 @@ # magic-string
 
+### s.slice( start, end )
+
+Returns the content of the generated string that corresponds to the slice between `start` and `end` of the original string. Throws error if the indices are for characters that were already removed.
+
 ### s.toString()
@@ -89,0 +93,0 @@

test/index.js

@@ -222,3 +222,3 @@ var assert = require( 'assert' ),
 
-	it.only( 'should correctly locate characters in trimmed appended/prepended content', function () {
+	it( 'should correctly locate characters in trimmed appended/prepended content', function () {
 		var s = new MagicString( ' abcdefghijkl ' );
@@ -309,2 +309,18 @@
 
+describe( 'MagicString$slice', function () {
+	it( 'should return the generated content between the specified original characters', function () {
+		var s = new MagicString( 'abcdefghijkl' );
+
+		assert.equal( s.slice( 3, 9 ), 'defghi' );
+		s.replace( 4, 8, 'XX' );
+		assert.equal( s.slice( 3, 9 ), 'dXXi' );
+		s.replace( 2, 10, 'ZZ' );
+		assert.equal( s.slice( 1, 11 ), 'bZZk' );
+
+		assert.throws( function () {
+			s.slice( 2, 10 );
+		});
+	});
+});
+
 describe( 'MagicString$trim', function () {
@@ -331,2 +347,7 @@ it( 'should trim original content', function () {
 	});
+
+	it( 'should return this', function () {
+		var s = new MagicString( '  abcdefghijkl  ' );
+		assert.strictEqual( s.trim(), s );
+	});
 });

No alert changes

Improved metrics

Total package byte prevSize

23771

increased by5.49%

Lines of code

597

increased by4.74%

Number of lines in readme file

97

increased by4.3%

No dependency changes