[Mono-dev] Re: Invalid escape selecting table rows

[Juraj Skripsky]

Hi,

This really seems to be a bug. I'll look into it.

- Juraj


On Fri, 2006-06-09 at 09:20 +0200, APS wrote:
> I explained me in a bad way.
> 
> (PAGE='\wsngmono\Categ.aspx' OR PAGE='/wsngmono/Categ.aspx') AND 
> (CONTROL='' OR CONTROL IS NULL) AND ENABLED=0
> 
> is the search I want to do, I want to search a string containing 
> '\wsngmono\categ.aspx'
> 
> In c# code I've done
> 
> Tables[0].Select("(PAGE='\\wsngmono\\Categ.aspx' OR 
> PAGE='/wsngmono/Categ.aspx') AND (CONTROL='' OR CONTROL IS NULL) AND 
> ENABLED=0")
> 
> otherwise there would be a compilation error.
> I think that replacing '\' with '\\' it's wrong cause it would search 
> a string with a double '\' in it, btw I tried with
> 
> Tables[0].Select("(PAGE='\\\\wsngmono\\\\Categ.aspx' OR 
> PAGE='/wsngmono/Categ.aspx') AND (CONTROL='' OR CONTROL IS NULL) AND 
> ENABLED=0")
> 
> and the error change..but not much
> 
> System.Data.SyntaxErrorException: Invalid escape sequence: '\w'
> 
> Maybe mono understand '\' in sql code as escape sequence?
> Thanks in advance for helping me.
> 
> 
> At 17.55 08/06/2006, Robert Jordan wrote:
> >>I select them using
> >>Tables[0].Select("(PAGE='\wsngmono\Categ.aspx' OR 
> >>PAGE='/wsngmono/Categ.aspx') AND (CONTROL='' OR CONTROL IS NULL) 
> >>AND ENABLED=0")
> >>and I obtain this error:
> >>System.Data.SyntaxErrorException: Invalid escape sequence: '\s'.
> >>in <0x00118> Mono.Data.SqlExpressions.Tokenizer:ProcessEscapes (Char c)
> >>in <0x000cc> Mono.Data.SqlExpressions.Tokenizer:ReadString (Char 
> >>terminator, Boolean canEscape)
> >>in <0x0015b> Mono.Data.SqlExpressions.Tokenizer:ParseToken ()
> >>in <0x00030> Mono.Data.SqlExpressions.Tokenizer:advance ()
> >>in <0x00274> Mono.Data.SqlExpressions.Parser:yyparse (yyInput yyLex)
> >>in <0x00112> Mono.Data.SqlExpressions.Parser:Compile (System.String sqlExpr)
> >>in <0x000dd> System.Data.DataTable:Select (System.String 
> >>filterExpression, System.String sort, DataViewRowState recordStates)
> >>in <0x00014> System.Data.DataTable:Select (System.String filterExpression)
> >>Apparently there's no escape sequence in the query, I'm doing 
> >>something wrong?
> >
> >
> >Escape all "\" with "\\".
> >
> >Robert
> >
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