Many hyperlinks are disabled.
Use anonymous login
to enable hyperlinks.
Overview
| Comment: | Performance enhancement to the blob-literal tokenizer. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
61aa2031f1c5ae05e31077588a55194a |
| User & Date: | drh 2011-06-03 21:34:45 |
Context
|
2011-06-03
| ||
| 23:28 | Performance improvements on memory copies inside of btree by moving 2 bytes at a time instead of just 1 byte at a time. check-in: 897f56a1 user: drh tags: trunk | |
| 21:34 | Performance enhancement to the blob-literal tokenizer. check-in: 61aa2031 user: drh tags: trunk | |
| 20:11 | Create and use a function especially for adding the ParseSchema opcode. This gives a small reduction in code and a small performance increase. check-in: 957b2ab6 user: drh tags: trunk | |
Changes
Changes to src/tokenize.c.
349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 |
return i;
}
#ifndef SQLITE_OMIT_BLOB_LITERAL
case 'x': case 'X': {
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;
}
}
if( i%2 || !c ) *tokenType = TK_ILLEGAL;
if( c ) i++;
return i;
}
/* Otherwise fall through to the next case */
}
#endif
default: {
if( !IdChar(*z) ){
|
| | | | | | < |
349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 |
return i;
}
#ifndef SQLITE_OMIT_BLOB_LITERAL
case 'x': case 'X': {
testcase( z[0]=='x' ); testcase( z[0]=='X' );
if( z[1]=='\'' ){
*tokenType = TK_BLOB;
for(i=2; sqlite3Isxdigit(z[i]); i++){}
if( z[i]!='\'' || i%2 ){
*tokenType = TK_ILLEGAL;
while( z[i] && z[i]!='\'' ){ i++; }
}
if( z[i] ) i++;
return i;
}
/* Otherwise fall through to the next case */
}
#endif
default: {
if( !IdChar(*z) ){
|