Process Entire Folder using Files As Search And Replace

[Grimus]

I'd like to batch process an entire folder of .txt files.

I'd like to use "search.txt" ( containing a block of text ) to search every .txt file in the directory and to replace it with the text block contained in "replace.txt".

Does anyone here know how I can do that?

[foxidrive]

An example would help us understand the exact requirement.

[dbenham]

This isn't too difficult using JREPL.BAT - a hybrid batch/JScript text processing utility.

The following assumes:
- All lines in search and replace files are terminated by CarriageReturn and LineFeed
- No lines are longer than 1021 bytes long (disregarding line terminators)
- No lines contain trailing control characters
- No lines contain null byte (0x00)
- Both the search and replace blocks are less than 8kb in length

The following is untested, but I think it should work.

Code: Select all

@echo off
setlocal enableDelayedExpansion

:: Initialize LF and CR to contain linefeed (0x0A) and carriage return (0x0D)
for /f %%C in ('copy /Z "%~f0" nul') do set "CR=%%C"
set ^"LF=^

^" The empty line above is critial - DO NOT REMOVE


:: Load search and replace terms
call :loadFile search.txt search
call :loadFile replace.txt replace


:: Iterate all .txt files in your folder and perform the search and replace
pushd "yourFolder"
for %%F in (*.txt) do call jrepl search replace /v /l /m /f "%%F" /o -

exit /b
  

:loadFile  file  var
set "%~2="
for /f %%N in ('find /c /v "" <%1') do set "cnt=%%N"
<%1 (
  for /l %%N in (1 1 %cnt%) do (
    set "ln="
    set /p "ln="
    set "%~2=!%~2!!ln!!CR!!LF!"
  )
)

You could write a more robust solution with fewer restrictions via custom JScript, or VBScript, or PowerShell, or ...
But attempting to do this with pure batch is extremely difficult and counterproductive.


Dave Benham