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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for June 10th, 2021

string – Change backslash to forward slash in windows batch file – Stack Overflow

Posted by jpluimers on 2021/06/10

One of the situations where setlocal enabledelayedexpansion comes on handy to replace \ with / which some unix based tools like better: [WayBack] string – Change backslash to forward slash in windows batch file – Stack Overflow

echo off

setlocal enabledelayedexpansion

for %%f IN ("C:\tools\workspace\*") DO (
  set old=%%f
  echo !old!
  set new=!old:\=/!
  echo !new!  

Related, as it explains when the source and target replacements are in variables themselves: [WayBack] command line – String replacement in batch file – Stack Overflow, thanks Joey and Tom Warfield!

You can use the following little trick:

set word=table
set str="jump over the chair"
call set str=%%str:chair=%word%%%
echo %str%

The call there causes another layer of variable expansion, making it necessary to quote the original % signs but it all works out in the end.

Upvoting this answer because it works both ways, with the environment variable in either position, or in both the “before” and “after” positions:

set word=table
set str="jump over the chair"
call set str=%%str:chair=%word%%%
echo %str%
set word1=chair
set word2=desk
set str="jump over the chair"
call set str=%%str:%word1%=%word2%%%
echo %str%'


Posted in Batch-Files, Development, Scripting, Software Development | Leave a Comment »

Sulfur Argon Calcium Samarium

Posted by jpluimers on 2021/06/10

Got this from a friend: Sulfur Argon Calcium Samarium (SArCaSm): the Primary Elements of Humor.

Of course there is Iridium Oxygen Nitrogen Yttrium (IrONy) as well.


Read the rest of this entry »

Posted in Fun, LifeHacker, Power User, Quotes | Leave a Comment »

Delphi: When porting really old code from versions that did not have .dproj files, watch your .dfg and .dof files

Posted by jpluimers on 2021/06/10

I have been bitten by this a few times too much, so time to write it down:

When porting old Delphi code from the Delphi 7 and older era, the options were stored .dof (options) and .cfg (configuration) files.

More modern Delphi versions try to translate these files when generating the .dproj file, in a similar way as they try to upgrade older .dproj files to newer formats.

Many things can go wrong, including these ones I have bumped into multiple times:

  • DCC_DebugInformation having a 0 or false value, but not handling these values correctly (I remember problems around the Delphi XE5 era with this: When the Delphi XE5 commandline compiler fails with error F1026: File not found: ‘False.dpr’)
  • DCC_OutputDependencies not being adhered to (no .d file is being emitted by the compiler), though for the .drc files, DCC_OutputDRCFile works fine)
  • DCC_DebugInformation having a 1 value (Limited Debug information) instead of being absent (Debug information)
  • DCC_SymbolReferenceInfo having a 1 value (Definitions Only) instead of being absent (Reference info)


Posted in Delphi, Development, Software Development | 1 Comment »

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