regenerate - npm Package Compare versions

Comparing version 1.2.1 to 1.3.0

package.json

 {
 	"name": "regenerate",
-	"version": "1.2.1",
+	"version": "1.3.0",
 	"description": "Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.",
@@ -5,0 +5,0 @@ "homepage": "https://mths.be/regenerate",

regenerate.js

@@ -1,2 +0,2 @@
-/*! https://mths.be/regenerate v1.2.0 by @mathias | MIT license */
+/*! https://mths.be/regenerate v1.3.0 by @mathias | MIT license */
 ;(function(root) {
@@ -11,3 +11,3 @@
 
-	// Detect free variable `global`, from Node.js or Browserified code,
+	// Detect free variable `global`, from Node.js/io.js or Browserified code,
 	// and use it as `root`.
@@ -34,4 +34,4 @@ var freeGlobal = typeof global == 'object' && global;
 
-	// In Regenerate output, `\0` will never be preceded by `\` because we sort
-	// by code point value, so let’s keep this regular expression simple.
+	// In Regenerate output, `\0` is never preceded by `\` because we sort by
+	// code point value, so let’s keep this regular expression simple.
 	var regexNull = /\\x00([^0123456789]|$)/g;
@@ -585,2 +585,9 @@
 
+	var codePointToStringUnicode = function(codePoint) {
+		if (codePoint <= 0xFFFF) {
+			return codePointToString(codePoint);
+		}
+		return '\\u{' + codePoint.toString(16).toUpperCase() + '}';
+	};
+
 	var symbolToCodePoint = function(symbol) {
@@ -629,2 +636,27 @@ var length = symbol.length;
 
+	var createUnicodeCharacterClasses = function(data) {
+		// Iterate over the data per `(start, end)` pair.
+		var result = '';
+		var index = 0;
+		var start;
+		var end;
+		var length = data.length;
+		if (dataIsSingleton(data)) {
+			return codePointToStringUnicode(data[0]);
+		}
+		while (index < length) {
+			start = data[index];
+			end = data[index + 1] - 1; // Note: the `- 1` makes `end` inclusive.
+			if (start == end) {
+				result += codePointToStringUnicode(start);
+			} else if (start + 1 == end) {
+				result += codePointToStringUnicode(start) + codePointToStringUnicode(end);
+			} else {
+				result += codePointToStringUnicode(start) + '-' + codePointToStringUnicode(end);
+			}
+			index += 2;
+		}
+		return '[' + result + ']';
+	};
+
 	var splitAtBMP = function(data) {
@@ -965,3 +997,6 @@ // Iterate over the data per `(start, end)` pair.
 
-	var createCharacterClassesFromData = function(data, bmpOnly) {
+	var createCharacterClassesFromData = function(data, bmpOnly, hasUnicodeFlag) {
+		if (hasUnicodeFlag) {
+			return createUnicodeCharacterClasses(data);
+		}
 		var result = [];
@@ -1007,3 +1042,5 @@
 			result.push(
-				// Make sure the low surrogates aren’t part of a surrogate pair.
+				// It is not possible to accurately assert the low surrogates aren’t
+				// part of a surrogate pair, since JavaScript regular expressions do
+				// not support lookbehind.
 				'(?:[^\\uD800-\\uDBFF]|^)' +
@@ -1032,3 +1069,3 @@ createBMPCharacterClasses(loneLowSurrogates)
 
-	regenerate.version = '1.2.0';
+	regenerate.version = '1.3.0';
 
@@ -1130,3 +1167,4 @@ var proto = regenerate.prototype;
 				this.data,
-				options ? options.bmpOnly : false
+				options ? options.bmpOnly : false,
+				options ? options.hasUnicodeFlag : false
 			);
@@ -1137,3 +1175,8 @@ // Use `\0` instead of `\x00` where possible.
 		'toRegExp': function(flags) {
-			return RegExp(this.toString(), flags || '');
+			var pattern = this.toString(
+				flags && flags.indexOf('u') != -1 ?
+					{ 'hasUnicodeFlag': true } :
+					null
+			);
+			return RegExp(pattern, flags || '');
 		},
@@ -1140,0 +1183,0 @@ 'valueOf': function() { // Note: `valueOf` is aliased as `toArray`.

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Lines of code

1097

increased by2.91%

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36067

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0

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