tippex - npm Package Compare versions

Comparing version 1.0.0 to 1.1.0

dist/tippex.es6.js

@@ -188,3 +188,30 @@ function find(str) {
 
-export { find, erase };
+function match(str, pattern, callback) {
+	if (!pattern.global) throw new Error('regular expression must have the g (global) flag');
+
+	var found = find(str);
+
+	var match = undefined;
+	var chunkIndex = 0;
+
+	while (match = pattern.exec(str)) {
+		var chunk = undefined;
+
+		do {
+			chunk = found[chunkIndex];
+
+			if (chunk && chunk.end < match.index) {
+				chunkIndex += 1;
+			} else {
+				break;
+			}
+		} while (chunk);
+
+		if (!chunk || chunk.start > match.index) {
+			callback.apply(null, match);
+		}
+	}
+}
+
+export { find, erase, match };
 //# sourceMappingURL=tippex.es6.js.map

dist/tippex.umd.js

@@ -194,6 +194,34 @@ (function (global, factory) {
 
+	function match(str, pattern, callback) {
+		if (!pattern.global) throw new Error('regular expression must have the g (global) flag');
+
+		var found = find(str);
+
+		var match = undefined;
+		var chunkIndex = 0;
+
+		while (match = pattern.exec(str)) {
+			var chunk = undefined;
+
+			do {
+				chunk = found[chunkIndex];
+
+				if (chunk && chunk.end < match.index) {
+					chunkIndex += 1;
+				} else {
+					break;
+				}
+			} while (chunk);
+
+			if (!chunk || chunk.start > match.index) {
+				callback.apply(null, match);
+			}
+		}
+	}
+
 	exports.find = find;
 	exports.erase = erase;
+	exports.match = match;
 
 }));
 //# sourceMappingURL=tippex.umd.js.map

package.json

 {
   "name": "tippex",
   "description": "Find and erase strings and comments in JavaScript code",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "author": "Rich Harris",
@@ -6,0 +6,0 @@ "main": "dist/tippex.umd.js",

README.md

@@ -79,3 +79,29 @@ # Tippex
 
+Sometimes you might need to match a regular expression against the original string, but ignoring comments etc. For that you can use `tippex.match`:
 
+```js
+var code = `
+import a from './a.js';
+// import b from './b.js'; TODO do we need this?
+`;
+
+var importPattern = /import (.+?) from '([^']+)'/g; // must have 'g' flag
+var importDeclarations = [];
+
+tippex.match( code, importPattern, ( match, name, source ) => {
+  // this callback will be called for each match that *doesn't* begin
+  // inside a comment, string or regular expression
+  importDeclarations.push({ name, source });
+});
+
+console.log( importDeclarations );
+// -> [{
+//       name: 'a',
+//       source: './a.js'
+//    }]
+```
+
+(A complete regular expression for ES6 imports would be a bit more complicated; this is for illustrative purposes.)
+
+
 ## License
@@ -82,0 +108,0 @@

src/index.js

@@ -172,1 +172,28 @@ export function find ( str ) {
 }
+
+export function match ( str, pattern, callback ) {
+	if ( !pattern.global ) throw new Error( 'regular expression must have the g (global) flag' );
+
+	const found = find( str );
+
+	let match;
+	let chunkIndex = 0;
+
+	while ( match = pattern.exec( str ) ) {
+		let chunk;
+
+		do {
+			chunk = found[ chunkIndex ];
+
+			if ( chunk && chunk.end < match.index ) {
+				chunkIndex += 1;
+			} else {
+				break;
+			}
+		} while ( chunk );
+
+		if ( !chunk || chunk.start > match.index ) {
+			callback.apply( null, match );
+		}
+	}
+}

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Improved metrics

Total package byte prevSize

39114

increased by13.36%

Number of package files

9

increased by12.5%

Lines of code

487

increased by14.32%

Number of lines in readme file

113

increased by29.89%

No dependency changes