fix: fix bug of unrecognized expression when containing z char

Author: char0n

README.md

@@ -246,7 +246,7 @@ path-segment                   = 1*( path-literal / template-expression )
 slash                          = "/"
 path-literal                   = 1*pchar
 template-expression            = "{" template-expression-param-name "}"
-template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF ) ; every UTF8 character except { and } (from OpenAPI)
+template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF / "z" ) ; every UTF8 character except { and } (from OpenAPI)
 
 ; Characters definitions (from RFC 3986)
 pchar               = unreserved / pct-encoded / sub-delims / ":" / "@"

src/path-templating.bnf

@@ -4,7 +4,7 @@ path-segment                   = 1*( path-literal / template-expression )
 slash                          = "/"
 path-literal                   = 1*pchar
 template-expression            = "{" template-expression-param-name "}"
-template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF ) ; every UTF8 character except { and } (from OpenAPI)
+template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF / "z" ) ; every UTF8 character except { and } (from OpenAPI)
 
 ; Characters definitions (from RFC 3986)
 pchar               = unreserved / pct-encoded / sub-delims / ":" / "@"

src/path-templating.js

@@ -7,13 +7,13 @@ export default function grammar(){
   // SUMMARY
   //      rules = 13
   //       udts = 0
-  //    opcodes = 65
+  //    opcodes = 66
   //        ---   ABNF original opcodes
   //        ALT = 7
   //        CAT = 4
   //        REP = 5
   //        RNM = 16
-  //        TLS = 27
+  //        TLS = 28
   //        TBS = 1
   //        TRG = 5
   //        ---   SABNF superset opcodes
@@ -82,10 +82,11 @@ export default function grammar(){
   /* template-expression-param-name */
   this.rules[5].opcodes = [];
   this.rules[5].opcodes[0] = { type: 3, min: 1, max: Infinity };// REP
-  this.rules[5].opcodes[1] = { type: 1, children: [2,3,4] };// ALT
+  this.rules[5].opcodes[1] = { type: 1, children: [2,3,4,5] };// ALT
   this.rules[5].opcodes[2] = { type: 5, min: 0, max: 121 };// TRG
   this.rules[5].opcodes[3] = { type: 6, string: [124] };// TBS
   this.rules[5].opcodes[4] = { type: 5, min: 126, max: 1114111 };// TRG
+  this.rules[5].opcodes[5] = { type: 7, string: [122] };// TLS
 
   /* pchar */
   this.rules[6].opcodes = [];
@@ -158,7 +159,7 @@ export default function grammar(){
     str += "slash                          = \"/\"\n";
     str += "path-literal                   = 1*pchar\n";
     str += "template-expression            = \"{\" template-expression-param-name \"}\"\n";
-    str += "template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF ) ; every UTF8 character except { and } (from OpenAPI)\n";
+    str += "template-expression-param-name = 1*( %x00-79 / %x7C / %x7E-10FFFF / \"z\" ) ; every UTF8 character except { and } (from OpenAPI)\n";
     str += "\n";
     str += "; Characters definitions (from RFC 3986)\n";
     str += "pchar               = unreserved / pct-encoded / sub-delims / \":\" / \"@\"\n";

test/test.js

@@ -4,12 +4,12 @@ import { test } from '../src/index.js';
 
 describe('test', function () {
   it('should detect as path template', function () {
-    assert.isTrue(test('/{path}'));
     assert.isTrue(test('/{path}/')); // trailing slash is allowed
     assert.isTrue(test('/pets/{petId}'));
     assert.isTrue(test('/{entity}/me'));
     assert.isTrue(test('/books/{id}'));
     assert.isTrue(test('/a{test}'));
+    assert.isTrue(test('/foo/bar/{baz}/test/{foo_id}/baz/{bar_id}'));
     assert.isTrue(test('/{test}a'));
     assert.isTrue(test('/range({x},{y})')); // parentheses are allowed
     assert.isTrue(test('/range({x},{y})/secondRange({x},{y})')); // repeated parameter names are allowed
@@ -29,9 +29,24 @@ describe('test', function () {
     assert.isTrue(test('/users/{user-id}'));
     assert.isTrue(test('/{❤️}'));
     assert.isTrue(test('/{%}'));
-    // RFC 6570 operators
+    assert.isTrue(test('/{foo:}'));
+    assert.isTrue(test('/{foo:bar}'));
+    assert.isTrue(test('/{=bar}'));
+    assert.isTrue(test('/{$bar}'));
+    assert.isTrue(test('/{~bar}'));
+    assert.isTrue(test('/{#bar}'));
+    assert.isTrue(test('/{?bar}'));
+    assert.isTrue(test('/{/bar}'));
+    assert.isTrue(test('/{foo bar}'));
+    assert.isTrue(test('/{|bar}'));
+    assert.isTrue(test('/{^bar}'));
+    assert.isTrue(test('/{`bar}'));
+    // RFC 6570 operators are allowed
     assert.isTrue(test('/{y,x}'), '/{y,x}');
     assert.isTrue(test('/{count*}'));
+    assert.isTrue(test('/{;bar}'));
+    assert.isTrue(test('/{&bar}'));
+    assert.isTrue(test('/{.bar}'));
   });
 
   it('should not detect expression', function () {
@@ -46,22 +61,6 @@ describe('test', function () {
     assert.isFalse(test('/#baz'));
     // special characters in literals are not allowed
     assert.isFalse(test('/❤️'));
-    // special characters in parameters names are not allowed
-    assert.isFalse(test('/{foo:baz}'));
-    assert.isFalse(test('/{=baz}'));
-    assert.isFalse(test('/{$baz}'));
-    assert.isFalse(test('/{~baz}'));
-    assert.isFalse(test('/{#baz}'));
-    assert.isFalse(test('/{?baz}'));
-    assert.isFalse(test('/{/baz}'));
-    assert.isFalse(test('/{foo baz}'));
-    assert.isFalse(test('/{|baz}'));
-    assert.isFalse(test('/{^baz}'));
-    assert.isFalse(test('/{`baz}'));
-    // RFC 6570 operators
-    assert.isFalse(test('/{;baz}'));
-    assert.isFalse(test('/{&baz}'));
-    assert.isFalse(test('/{.baz}'));
     // invalid types
     assert.isFalse(test(1));
     assert.isFalse(test(null));