ret - npm Package Compare versions

Comparing version 0.4.3 to 0.5.0

dist/reconstruct.js

@@ -41,6 +41,7 @@ "use strict";
             // Check token.remember
-            const prefix = token.remember ? '' :
-                token.followedBy ? '?=' :
-                    token.notFollowedBy ? '?!' :
-                        '?:';
+            const prefix = token.name ? `?<${token.name}>` :
+                token.remember ? '' :
+                    token.followedBy ? '?=' :
+                        token.notFollowedBy ? '?!' :
+                            '?:';
             return `(${prefix}${createAlternate(token)})`;
@@ -47,0 +48,0 @@ }

dist/tokenizer.js

@@ -27,2 +27,11 @@ "use strict";
 /**
+ * Valid opening characters for capture group names.
+ */
+const captureGroupFirstChar = /^[a-zA-Z_$]$/i;
+/**
+ * Valid characters for capture group names.
+ */
+const captureGroupChars = /^[a-zA-Z0-9_$]$/i;
+const digit = /\d/;
+/**
  * Tokenizes a regular expression (that is currently a string)
@@ -83,5 +92,5 @@ * @param {string} regexpStr String of regular expression to be tokenized
                         // In which case it's a reference.
-                        if (/\d/.test(c)) {
+                        if (digit.test(c)) {
                             let digits = c;
-                            while (i < str.length && /\d/.test(str[i])) {
+                            while (i < str.length && digit.test(str[i])) {
                                 digits += str[i++];
@@ -141,3 +150,3 @@ }
                 };
-                // If if this is a special kind of group.
+                // If this is a special kind of group.
                 if (str[i] === '?') {
@@ -149,2 +158,3 @@ c = str[i + 1];
                         group.followedBy = true;
+                        group.remember = false;
                         // Match if not followed by.
@@ -154,8 +164,36 @@ }
                         group.notFollowedBy = true;
+                        group.remember = false;
                     }
-                    else if (c !== ':') {
+                    else if (c === '<') {
+                        let name = '';
+                        if (captureGroupFirstChar.test(str[i])) {
+                            name += str[i];
+                            i++;
+                        }
+                        else {
+                            throw new SyntaxError(`Invalid regular expression: /${regexpStr}/: Invalid capture group name, character '${str[i]}'` +
+                                ` after '<' at column ${i + 1}`);
+                        }
+                        while (i < str.length && captureGroupChars.test(str[i])) {
+                            name += str[i];
+                            i++;
+                        }
+                        if (!name) {
+                            throw new SyntaxError(`Invalid regular expression: /${regexpStr}/: Invalid capture group name, character '${str[i]}'` +
+                                ` after '<' at column ${i + 1}`);
+                        }
+                        if (str[i] !== '>') {
+                            throw new SyntaxError(`Invalid regular expression: /${regexpStr}/: Unclosed capture group name, expected '>', found` +
+                                ` '${str[i]}' at column ${i + 1}`);
+                        }
+                        group.name = name;
+                        i++;
+                    }
+                    else if (c === ':') {
+                        group.remember = false;
+                    }
+                    else {
                         throw new SyntaxError(`Invalid regular expression: /${regexpStr}/: Invalid group, character '${c}'` +
                             ` after '?' at column ${i - 1}`);
                     }
-                    group.remember = false;
                 }
@@ -162,0 +200,0 @@ else {

dist/types/tokens.d.ts

@@ -20,2 +20,3 @@ import { types } from './types';
     lookBehind?: boolean;
+    name?: string;
 }>;
@@ -22,0 +23,0 @@ export declare type Set = Base<types.SET, {

package.json

@@ -11,3 +11,3 @@ {
   ],
-  "version": "0.4.3",
+  "version": "0.5.0",
   "repository": {
@@ -14,0 +14,0 @@ "type": "git",

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Improved metrics

Total package byte prevSize

69196

increased by4.47%

Lines of code

900

increased by4.65%

No dependency changes