There isn’t really enough information to go on here to say for sure what your
problem is. “ProgramName” doesn’t “see” anything. What you use ProgramName
with is more relevant (i.e. what some other function “sees” ProgramName as
containing.
If the value of FW_Path contains a null character and if the function you pass
ProgramName to is dealing with null terminated strings, then it will consider
the value of the string to be terminated by that null char, regardless of the
actual length of the string.
Demonstration:
var
s: String;
msg: String;
begin
s := 'hat'#0; // < the null char is part of the string (in addition to
the null char marking the END of the string
msg := 'That''s a nice ' + s + ' you are wearing';
ShowMessage('Length of message = ' + IntToStr(Length(msg)) + ' chars');
ShowMessage(msg);
end;
From: [email protected] [mailto:[email protected]] On
Behalf Of Bob Pawley
Sent: Monday, 27 June 2011 05:56
To: 'NZ Borland Developers Group - Delphi List'
Subject: Re: [DUG] Variable in String
Hi Jolyon
Double quoting the path doesn’t seem to work. ProgramName := ‘”’ + FW_Path +
'\FWTools2.4.7\bin\ogr2ogr” "-f" "PostgreSQL" PG:"host=192........
user=postgres dbname=E5R password=........" "'+ DXF +'" -nln Import_Process';
All that ProgramName sees is the string variable FW_Path. Even with the +, all
of the remaining string is ignored.
Bob
From: Jolyon Smith <mailto:[email protected]>
Sent: Wednesday, June 22, 2011 3:49 PM
To: 'NZ Borland Developers Group - Delphi List' <mailto:[email protected]>
Subject: Re: [DUG] Variable in String
Don’t quote FW_Path element of the program path – you need to quote the entire
path AND program file name when/if any part of the path or the filename itself
does – or may – contain spaces:
e.g. “path a\sub a\sub b\prog.exe”
not “path a”\sub\prog.exe
So in your case, this should do the trick:
FW_Path := X;
DXF := openDialog1.FileName;
ProgramName := ‘”’ + FW_Path + '\FWTools2.4.7\bin\ogr2ogr” "-f" "PostgreSQL"
PG:"host=192........ user=postgres dbname=E5R password=........" "'+ DXF +'"
-nln Import_Process';
ShowMessage(ProgramName);
hth
From: [email protected] [mailto:[email protected]] On
Behalf Of Bob Pawley
Sent: Thursday, 23 June 2011 10:30
To: DUG
Subject: [DUG] Variable in String
Hi
I’m having trouble with using a variable in a string path.
When I use the variable FW_Path := ‘C:\Program Files (x86)’ with two single
quotes, the following works well and ShowMessage(ProgramName); displayed the
full path .
When I reference FW_Path to a variable X I get an error returned “Can Not
run....” The variable X is returned as C:\Program Files (x86) without quotes.
I attempted Quote String and got the following ‘C:\Program Files (x86) with one
single quote.
Both cases return the same error - and in both cases ShowMessage(ProgramName);
displayed none of the path after C:\Program Files (x86).
Help would be appreciated.
Bob
FW_Path := QuoteStr(X);
DXF := openDialog1.FileName;
ProgramName :=FW_Path+'\FWTools2.4.7\bin\ogr2ogr "-f" "PostgreSQL"
PG:"host=192........ user=postgres dbname=E5R password=........" "'+ DXF +'"
-nln Import_Process';
ShowMessage(ProgramName);
_____
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