help on resolve routine

  • Thread starter Thread starter Jean Pierre Daviau
  • Start date Start date
J

Jean Pierre Daviau

Hi gurus,

Error environnment variable RET is not defined
-----------------
@echo off
rem [almost exactly] resolve procedure WINNT SHELL SCRIPTING p 140

set X= var x
set Y= var y
set XX=%%X%%
set YY=%%Y%%
set RET=%%XX%% and %%YY%%

:RESOLVE
if "%RET%"=="" goto :EOF
set RET1=%RET%
for /f "tokens=*" %%I in ('echo %RET%') do set RET+%%I
if not "%RET%"=="%RET1%" goto :RESOLVE
goto :EOF





@echo on
@echo before RESOLVE %RET%
call :RESOLVE
@echo after RESOLVE %RET%
goto :EOF
-- ------------------
Thanks for your attention.

Jean Pierre Daviau
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correction:
for /f "tokens=*" %%I in ('echo %RET%') do set RET+%%I
Click to expand...
for /f "tokens=*" %%I in ('echo %RET%') do set RET=%%I

nothing is shown on the screen
 
I get it. I think ...

@echo off
rem resolve procedure p 140
set x= var x
set y= var y
set XX=%%x%%
set YY=%%y%%
set RET=%%XX%% and %%YY%%
echo before RESOLVE %RET%
call :RESOLVE
echo after RESOLVE %RET%
goto :EOF

:RESOLVE
if "%RET%"=="" goto :EOF
set RET1=%RET%
for /f "tokens=*" %%I in ('echo %RET%') do set RET=%%I
if not "%RET%"=="%RET1%" goto :RESOLVE
 
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