Skip to main content
Code Golf

Return to Answer

replaced http://stackoverflow.com/ with https://stackoverflow.com/
Source Link
Community Bot
Community Bot
  • 1

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over hereover here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"
replaced http://codegolf.stackexchange.com/ with https://codegolf.stackexchange.com/
Source Link
Community Bot
Community Bot
  • 1

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in BatchTips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"
deleted 2 characters in body
Source Link
unclemeat
unclemeat
  • 2.3k
  • 1
  • 16
  • 23

Batch - 140138 bytes

@!! 2>nul||cmd/q/vonv/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 140 bytes

@!! 2>nul||cmd/q/von/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"

Batch - 138 bytes

@!! 2>nul||cmd/q/v/c%0 %1&&exit/b
set s=%1&for /F %%a in ('"prompt $H&echo on&for %%b in (1)do rem"')do set D=%%a
echo %s:^H=!D! !D!%

The first line is a way of saving a few bytes over the lengthy @echo off&setLocal enableDelayedExpansion (which turns echo off and enables the delayed expansion of variables, in case you were wondering). I explained it in Tips for Golfing in Batch.

The second line is a neat little trick to save the a backspace control character into a variable. It's pretty hacky, and I can't pretend to take credit for it. It's sort of explained here. Basically uses the prompt command to generate a backspace character and captures it in a variable - in this case !D!.

The final line then performs the simple string manipulation of - replace ^H with !D!<SPACE>!D!.

C:\>bsp.bat "testing^H^H^H test"
"test test"

Unfortunately it breaks with cases like "AAA^HB^H^H" - where it should produce "A", it instead produces "A"B. Which is somewhat confusing. I'll have to look into how Batch string manipulation works in some more depth.

C:\>bsp.bat "AAA^HB^H^H"
"A"B

Thanks to to some helpful people over here - I now realize that I was only saving the backspace character (0x08), and so was only overwriting the characters. It now works with examples like the following:

C:\>bsp.bat "AAA^HB^H^H"
"A"
deleted 3 characters in body
Source Link
unclemeat
unclemeat
  • 2.3k
  • 1
  • 16
  • 23
added 392 characters in body
Source Link
unclemeat
unclemeat
  • 2.3k
  • 1
  • 16
  • 23
Source Link
unclemeat
unclemeat
  • 2.3k
  • 1
  • 16
  • 23