How to detect the length of a string? (batch)

Question

I'm trying to make a batch file to solve a puzzle. At my current moment I need a way to detect the length of a string. I don't really know where to start and did not find any related articles on a title search.

try https://stackoverflow.com/search?q=string+length+batch – Magoo Feb 25 '18 at 08:41 — Magoo, Feb 25 '18 at 08:41
@Magoo Unfortunately my searches were poor, Apparrently... – Fierce Thunder Feb 25 '18 at 12:55 — Fierce Thunder, Feb 25 '18 at 12:55

score 0 · Answer 1 · answered Feb 25 '18 at 09:10

@echo off
 setlocal enabledelayedexpansion
 set "line=this is my string"

 for /l %%a in (0,1,8191) do (
    Set "each=!line:~%%a,1!"
    if not defined each echo length: %%a & endlocal & set length=%%a & goto :eof
 )

If you want to test the length of the string excluding special characters or whitespace you need to remove whitespace and escape special characters before setting each

How to detect the length of a string? (batch)

1 Answers1