From 9df01b5ccf78535dd44e1f8c0b83fcee40ea5042 Mon Sep 17 00:00:00 2001
From: drh <>
Date: Wed, 6 Dec 2023 16:57:18 +0000
Subject: [PATCH] Fix the routine that determines the json_tree.path value for
 the first row so that it correctly takes into account escape sequences in the
 path argument.

FossilOrigin-Name: b9243ee8a37c62eb8848e765bd4af83bc1b3d3eb24fb4268a1357ad1f8b2e1fb
---
 manifest          | 14 +++++++-------
 manifest.uuid     |  2 +-
 src/json.c        | 23 ++++++++++++-----------
 test/json502.test |  4 ++++
 4 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/manifest b/manifest
index 0ec0180763..48427cf150 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Test\scases\sfor\sobject\slabel\smatching\swith\sescape\ssequences.
-D 2023-12-06T15:50:13.951
+C Fix\sthe\sroutine\sthat\sdetermines\sthe\sjson_tree.path\svalue\sfor\sthe\sfirst\srow\nso\sthat\sit\scorrectly\stakes\sinto\saccount\sescape\ssequences\sin\sthe\spath\nargument.
+D 2023-12-06T16:57:18.873
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -690,7 +690,7 @@ F src/hash.h 3340ab6e1d13e725571d7cee6d3e3135f0779a7d8e76a9ce0a85971fa3953c51
 F src/hwtime.h f9c2dfb84dce7acf95ce6d289e46f5f9d3d1afd328e53da8f8e9008e3b3caae6
 F src/in-operator.md 10cd8f4bcd225a32518407c2fb2484089112fd71
 F src/insert.c 3f0a94082d978bbdd33c38fefea15346c6c6bffb70bc645a71dc0f1f87dd3276
-F src/json.c 9d0b8fa594a931d3f84056020c6581bb631cee02ea5f0530a4fd5876a2cb6560
+F src/json.c 89ce1dbcd8373a33adb82652842956c8a5d2b5c48d6f2c197d47bcee5fdedfd3
 F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
 F src/loadext.c 7432c944ff197046d67a1207790a1b13eec4548c85a9457eb0896bb3641dfb36
 F src/main.c 1b89f3de98d1b59fec5bac1d66d6ece21f703821b8eaa0d53d9604c35309f6f9
@@ -1333,7 +1333,7 @@ F test/json103.test 53df87f83a4e5fa0c0a56eb29ff6c94055c6eb919f33316d62161a888011
 F test/json104.test 1b844a70cddcfa2e4cd81a5db0657b2e61e7f00868310f24f56a9ba0114348c1
 F test/json105.test e64a8d73677fbae67886642cd5076e2ef3efe89f8483b87595cf9c030216c9bd
 F test/json501.test ab168a12eb6eb14d479f8c1cdae3ac062fd5a4679f17f976e96f1af518408330
-F test/json502.test 73dd17721c0b4a1320b163c3a1092d714aae5d100faf46f305515e1b3591c3a6
+F test/json502.test 3c697e506fc38ccb455b49660b21b6e62e08ede0f2d0c869a7d171e17809093c
 F test/jsonb01.test cace70765b36a36aec9a85a41ea65667d3bbf647d4400ddc3ac76f8fe7d94f90
 F test/keyword1.test 37ef6bba5d2ed5b07ecdd6810571de2956599dff
 F test/kvtest.c 6e0228409ea7ca0497dad503fbd109badb5e59545d131014b6aaac68b56f484a
@@ -2147,8 +2147,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 0e059a546ec11fa5c6d007bd65c249ee2422f1facbdb2792c53e0bc0ccc97e14
-R 4550d328e20b914ec87aa1544ecc75dd
+P c6f2aa38e95b7888650cfa7bb773b18a28e01d883033ac77be6d504ffe417d18
+R 31c04da1922b93d8052617096f6b59a6
 U drh
-Z 5fceb780d654fe6791112d65204ddb27
+Z a482eb5d0e0092ccc9abb42b468f8c79
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 6aa28612b9..3fd26623b4 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-c6f2aa38e95b7888650cfa7bb773b18a28e01d883033ac77be6d504ffe417d18
\ No newline at end of file
+b9243ee8a37c62eb8848e765bd4af83bc1b3d3eb24fb4268a1357ad1f8b2e1fb
\ No newline at end of file
diff --git a/src/json.c b/src/json.c
index 44abe2d164..c9014f74a5 100644
--- a/src/json.c
+++ b/src/json.c
@@ -4489,22 +4489,23 @@ static int jsonEachNext(sqlite3_vtab_cursor *cur){
 */
 static int jsonEachPathLength(JsonEachCursor *p){
   u32 n = p->path.nUsed;
+  const char *z = p->path.zBuf;
   if( p->iRowid==0 && p->bRecursive && n>1 ){
-    if( p->path.zBuf[n-1]==']' ){
+    if( z[n-1]==']' ){
       do{
-        assert( n>0 );
+        assert( n>1 );
         n--;
-      }while( p->path.zBuf[n]!='[' );
+      }while( z[n]!='[' );
+    }else if( z[n-1]=='"' ){
+      do{
+        assert( n>1 );
+        n--;
+      }while( z[n]!='.' || z[n+1]!='"' );
     }else{
-      u32 sz = 0;
-      jsonbPayloadSize(&p->sParse, p->i, &sz);
-      if( p->path.zBuf[n-1]=='"' ) sz += 2;
-      assert( sz<n );
-      n -= sz;
-      while( p->path.zBuf[n]!='.' && ALWAYS(n>0) ){
+      do{
+        assert( n>1 );
         n--;
-        assert( n>0 );
-      }
+      }while( z[n]!='.' );
     }
   }
   return n;
diff --git a/test/json502.test b/test/json502.test
index ed61260e3b..48c372c4f8 100644
--- a/test/json502.test
+++ b/test/json502.test
@@ -58,4 +58,8 @@ do_execsql_test 3.4 {
   SELECT json_patch('{"a\x62c":123}','{"ab\x63":456}') ->> 'abc';
 } 456
 
+do_execsql_test 4.1 {
+  SELECT * FROM json_tree('{"\u0017":1}','$."\x17"');
+} {{\x17} 1 integer 1 1 null {$."\x17"} {$}}
+
 finish_test
-- 
2.39.5