diff options
Diffstat (limited to 'src/util.c')
| -rw-r--r-- | src/util.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c index 4aa82d063..bdf92d9c4 100644 --- a/src/util.c +++ b/src/util.c @@ -312,6 +312,34 @@ void sqlite3DequoteExpr(Expr *p){ } /* +** Expression p is a QNUMBER (quoted number). Dequote the value in p->u.zToken +** and set the type to INTEGER or FLOAT. "Quoted" integers or floats are those +** that contain '_' characters that must be removed before further processing. +*/ +void sqlite3DequoteNumber(Parse *pParse, Expr *p){ + if( p ){ + const char *pIn = p->u.zToken; + char *pOut = p->u.zToken; + int bHex = (pIn[0]=='0' && (pIn[1]=='x' || pIn[1]=='X')); + assert( p->op==TK_QNUMBER ); + p->op = TK_INTEGER; + do { + if( *pIn!=SQLITE_DIGIT_SEPARATOR ){ + *pOut++ = *pIn; + if( *pIn=='e' || *pIn=='E' || *pIn=='.' ) p->op = TK_FLOAT; + }else{ + if( (bHex==0 && (!sqlite3Isdigit(pIn[-1]) || !sqlite3Isdigit(pIn[1]))) + || (bHex==1 && (!sqlite3Isxdigit(pIn[-1]) || !sqlite3Isxdigit(pIn[1]))) + ){ + sqlite3ErrorMsg(pParse, "unrecognized token: \"%s\"", p->u.zToken); + } + } + }while( *pIn++ ); + if( bHex ) p->op = TK_INTEGER; + } +} + +/* ** If the input token p is quoted, try to adjust the token to remove ** the quotes. This is not always possible: ** |