From: drh <drh@noemail.net>
Date: Fri, 3 Jun 2011 21:34:45 +0000 (+0000)
Subject: Performance enhancement to the blob-literal tokenizer.
X-Git-Tag: version-3.7.7~71
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3a61a5a2b534f357822851d7859a683212aaab72;p=thirdparty%2Fsqlite.git

Performance enhancement to the blob-literal tokenizer.

FossilOrigin-Name: 61aa2031f1c5ae05e31077588a55194a9546262a
---

diff --git a/manifest b/manifest
index c00993097b..014b8a5783 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Create\sand\suse\sa\sfunction\sespecially\sfor\sadding\sthe\sParseSchema\sopcode.\nThis\sgives\sa\ssmall\sreduction\sin\scode\sand\sa\ssmall\sperformance\sincrease.
-D 2011-06-03T20:11:17.958
+C Performance\senhancement\sto\sthe\sblob-literal\stokenizer.
+D 2011-06-03T21:34:45.326
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 11dcc00a8d0e5202def00e81732784fb0cc4fe1d
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -230,7 +230,7 @@ F src/test_vfs.c e7855568dfa1e0ba73668d273b65605d9f8b77e8
 F src/test_vfstrace.c 0b884e06094a746da729119a2cabdc7aa790063d
 F src/test_wholenumber.c 6129adfbe7c7444f2e60cc785927f3aa74e12290
 F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
-F src/tokenize.c 7b0c9281b2368dc69135e7a50bd271de9af1b467
+F src/tokenize.c c819d9f72168a035d545a5bdafe9b085b20df705
 F src/trigger.c c836a6caac16ba96611558922106858f6ca3d6bf
 F src/update.c 5bcb56e5c7380a2eecb0e71891dbd4ad7437748f
 F src/utf.c d83650c3ea08f7407bd9d0839d9885241c209c60
@@ -942,7 +942,7 @@ F tool/split-sqlite3c.tcl d9be87f1c340285a3e081eb19b4a247981ed290c
 F tool/symbols.sh bc2a3709940d47c8ac8e0a1fdf17ec801f015a00
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
 F tool/warnings.sh 347d974d143cf132f953b565fbc03026f19fcb4d
-P 1bd72d0c616e20fdb395c72ecd96579090ae26cb
-R 80ecde493cfcd0f0a571171fe6ad9164
+P 957b2ab67c6185f0e1062593d237de5c434a38bf
+R bd36ddd3c30f1348cf18f2599b20bbca
 U drh
-Z 08497a0228f24f1156217359e2dbd164
+Z fe6a860af7a1658c61a1531782a69559
diff --git a/manifest.uuid b/manifest.uuid
index 67c1f2f89d..01e044ed3e 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-957b2ab67c6185f0e1062593d237de5c434a38bf
\ No newline at end of file
+61aa2031f1c5ae05e31077588a55194a9546262a
\ No newline at end of file
diff --git a/src/tokenize.c b/src/tokenize.c
index 016a218262..b32989277e 100644
--- a/src/tokenize.c
+++ b/src/tokenize.c
@@ -353,13 +353,12 @@ int sqlite3GetToken(const unsigned char *z, int *tokenType){
       testcase( z[0]=='x' ); testcase( z[0]=='X' );
       if( z[1]=='\'' ){
         *tokenType = TK_BLOB;
-        for(i=2; (c=z[i])!=0 && c!='\''; i++){
-          if( !sqlite3Isxdigit(c) ){
-            *tokenType = TK_ILLEGAL;
-          }
+        for(i=2; sqlite3Isxdigit(z[i]); i++){}
+        if( z[i]!='\'' || i%2 ){
+          *tokenType = TK_ILLEGAL;
+          while( z[i] && z[i]!='\'' ){ i++; }
         }
-        if( i%2 || !c ) *tokenType = TK_ILLEGAL;
-        if( c ) i++;
+        if( z[i] ) i++;
         return i;
       }
       /* Otherwise fall through to the next case */