QuotedStr

[BubikolRamios]

Code: Pascal  [Select][+][-]

1. str := '1';
2. str := QuotedStr(str);
3.  

copy from debug --> str = '''1'''

I guess I would expect str = ''1''

?

[dsiders]

Code: Pascal  [Select][+][-]

1. str := '1';
2. str := QuotedStr(str);
3.  

copy from debug --> str = '''1'''

I guess I would expect str = ''1''

?

Not according to the docs. https://lazarus-ccr.sourceforge.io/docs/rtl/sysutils/quotedstr.html

[BubikolRamios]

Code: Pascal  [Select][+][-]

1. str := '1';
2. str := QuotedStr(str);
3.  

copy from debug --> str = '''1'''

I guess I would expect str = ''1''

?

Not according to the docs. https://lazarus-ccr.sourceforge.io/docs/rtl/sysutils/quotedstr.html

quote from there
"QuotedStr returns the string S, quoted with single quotes. This means that S is enclosed in single quotes"
If single quote is ' ?

[Retrofoxed]

QuotedStr adds two single quotes and the debug copy function adds two double quotes, so you have '"..."'

[jamie]

Code: Pascal  [Select][+][-]

1.  
2. Str := Str.Quotedstring('"');
3.  

Jamie

[BubikolRamios]

ShowMessage displays it as it is, correct, as I read in some other thread and tested.  Unfortunately the message is cut off and not displayed in entire length.
Solution to that, to be tested .... https://forum.lazarus.freepascal.org/index.php?topic=36586.0

[wp]

Code: Pascal  [Select][+][-]

1. str := '1';
2. str := QuotedStr(str);
3.  

copy from debug --> str = '''1'''

1st line:
str is a string. The value of the string variable must be enclosed by single quotes in the source code. And that's also the way the debugger displays it: '1'. But when you do a WriteLn the quotes are not displayed: WriteLn(str) --> 1. A special case is a string which already contains a single quote character: to avoid confusion with the string-identifying quotes this character then is doubled. Example: WriteLn('It''s magic') ---> It's magic.

2nd line:
QuotedStr(str) -> the function Quotedstr has the purpose to enclose the result string in single quotes (but only when the string does not begin/end with a quote already). Therefore the result of QuotedStr('1') is displayed by the debugger as '''1''': the first and last quotes are the leading and trailing quotes identifying the output as a string; the remaining quotes are the quotes added by the QuotedStr function - they are doubled because they are inside the string.

If you want to have double quotes around the input string you can use the function AnsiQuotedStr which allows a second parameter for the quoting character:
str := '1' --> AnsiQuotedStr('1', '"') --> '"1"' in the debugger, or "1" in WriteLn.