database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-11-11 01:42:22 +03:00
Code Activity

Add support for named wildcards in SQL statements. (CVS 1897)

Browse Source 
FossilOrigin-Name: d3be0b7c5a39c02b9b2d6d85f1595d591984a569
This commit is contained in:
drh
2004-08-20 16:02:39 +00:00
parent e8cf2cacb1
commit 895d747226
14 changed files with 222 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
src/tokenize.c
View File

@@ -15,7 +15,7 @@
** individual tokens and sends those tokens one-by-one over to the
** parser for analysis.
**
** $Id: tokenize.c,v 1.81 2004/08/08 23:39:19 drh Exp $
** $Id: tokenize.c,v 1.82 2004/08/20 16:02:39 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -373,6 +373,54 @@ static int sqliteGetToken(const unsigned char *z, int *tokenType){
*tokenType = TK_VARIABLE;
return 1;
}
case ':': {
for(i=1; isdigit(z[i]); i++){}
if( i>1 && z[i]==':' ){
*tokenType = TK_VARIABLE;
return i+1;
}else{
*tokenType = TK_ILLEGAL;
return i;
}
}
case '$': {
int c;
if( z[1]=='{' ){
int nBrace = 1;
for(i=2; (c=z[i])!=0 && nBrace; i++){
if( c=='{' ){
nBrace++;
}else if( c=='}' ){
nBrace--;
}
}
*tokenType = c!=0 ? TK_VARIABLE : TK_ILLEGAL;
}else{
int n = 0;
for(i=1; (c=z[i])!=0; i++){
if( isalnum(c) || c=='_' ){
n++;
}else if( c=='(' && n>0 ){
do{
i++;
}while( (c=z[i])!=0 && !isspace(c) && c!=')' );
if( c==')' ){
i++;
*tokenType = TK_VARIABLE;
}else{
*tokenType = TK_ILLEGAL;
}
break;
}else if( c==':' && z[i+1]==':' ){
i++;
}else{
*tokenType = n==0 ? TK_ILLEGAL : TK_VARIABLE;
break;
}
}
}
return i;
}
case 'x': case 'X': {
if( z[1]=='\'' || z[1]=='"' ){
int delim = z[1];