Revert 25202 - Merge 25141 Fix issue 15261: Crash in history::TextDatabase::...

third_party/sqlite/safe-tolower.patch

Index: third_party/sqlite/safe-tolower.patch
===================================================================
--- third_party/sqlite/safe-tolower.patch	(revision 25403)
+++ third_party/sqlite/safe-tolower.patch	(working copy)
@@ -1,97 +0,0 @@
-This patch removes the usage of tolower() in fts code, which is not locale
-neutral and causes problem in some locales such as Turkish.
-See http://crbug.com/15261 for details.
-An upstream ticket was also created for this issue:
-http://www.sqlite.org/src/tktview/991789d9f3136a0460dc83a33e815c1aa9757c26
-
-Index: ext/fts3/fts3.c
-===================================================================
---- ext/fts3/fts3.c	(revision 24387)
-+++ ext/fts3/fts3.c	(working copy)
-@@ -330,7 +330,7 @@
-   return (c&0x80)==0 ? isspace(c) : 0;
- }
- static int safe_tolower(char c){
--  return (c&0x80)==0 ? tolower(c) : c;
-+  return (c>='A' && c<='Z') ? (c-'A'+'a') : c;
- }
- static int safe_isalnum(char c){
-   return (c&0x80)==0 ? isalnum(c) : 0;
-Index: ext/fts3/fts3_tokenizer1.c
-===================================================================
---- ext/fts3/fts3_tokenizer1.c	(revision 24387)
-+++ ext/fts3/fts3_tokenizer1.c	(working copy)
-@@ -191,7 +191,7 @@
-         ** case-insensitivity.
-         */
-         unsigned char ch = p[iStartOffset+i];
--        c->pToken[i] = ch<0x80 ? tolower(ch) : ch;
-+        c->pToken[i] = (ch>='A' && ch<='Z') ? (ch-'A'+'a') : ch;
-       }
-       *ppToken = c->pToken;
-       *pnBytes = n;
-Index: ext/fts1/simple_tokenizer.c
-===================================================================
---- ext/fts1/simple_tokenizer.c	(revision 24387)
-+++ ext/fts1/simple_tokenizer.c	(working copy)
-@@ -138,7 +138,7 @@
-         ** case-insensitivity.
-         */
-         char ch = c->pCurrent[ii];
--        c->zToken[ii] = (unsigned char)ch<0x80 ? tolower(ch) : ch;
-+        c->zToken[ii] = ((ch>='A' && ch<='Z') ? (ch-'A'+'a') : ch);
-       }
-       c->zToken[n] = '\0';
-       *ppToken = c->zToken;
-Index: ext/fts1/fts1_tokenizer1.c
-===================================================================
---- ext/fts1/fts1_tokenizer1.c	(revision 24387)
-+++ ext/fts1/fts1_tokenizer1.c	(working copy)
-@@ -182,7 +182,7 @@
-         ** case-insensitivity.
-         */
-         unsigned char ch = p[iStartOffset+i];
--        c->pToken[i] = ch<0x80 ? tolower(ch) : ch;
-+        c->pToken[i] = (ch>='A' && ch<='Z') ? (ch-'A'+'a') : ch;
-       }
-       *ppToken = c->pToken;
-       *pnBytes = n;
-Index: ext/fts1/fts1.c
-===================================================================
---- ext/fts1/fts1.c	(revision 24387)
-+++ ext/fts1/fts1.c	(working copy)
-@@ -208,7 +208,7 @@
-   return (c&0x80)==0 ? isspace(c) : 0;
- }
- static int safe_tolower(char c){
--  return (c&0x80)==0 ? tolower(c) : c;
-+  return (c>='A' && c<='Z') ? (c-'A'+'a') : c;
- }
- static int safe_isalnum(char c){
-   return (c&0x80)==0 ? isalnum(c) : 0;
-Index: ext/fts2/fts2.c
-===================================================================
---- ext/fts2/fts2.c	(revision 24387)
-+++ ext/fts2/fts2.c	(working copy)
-@@ -372,7 +372,7 @@
-   return (c&0x80)==0 ? isspace(c) : 0;
- }
- static int safe_tolower(char c){
--  return (c&0x80)==0 ? tolower(c) : c;
-+  return (c>='A' && c<='Z') ? (c-'A'+'a') : c;
- }
- static int safe_isalnum(char c){
-   return (c&0x80)==0 ? isalnum(c) : 0;
-Index: ext/fts2/fts2_tokenizer1.c
-===================================================================
---- ext/fts2/fts2_tokenizer1.c	(revision 24387)
-+++ ext/fts2/fts2_tokenizer1.c	(working copy)
-@@ -191,7 +191,7 @@
-         ** case-insensitivity.
-         */
-         unsigned char ch = p[iStartOffset+i];
--        c->pToken[i] = ch<0x80 ? tolower(ch) : ch;
-+        c->pToken[i] = (ch>='A' && ch<='Z') ? (ch-'A'+'a') : ch;
-       }
-       *ppToken = c->pToken;
-       *pnBytes = n;