dedent_lines/3

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(strings): String utilities
- Packages

Availability::- use_module(library(strings)).(can be autoloaded)

dedent_lines(+In, -Out, +Options)

Remove shared indentation for all lines in a string. Lines are separated by "\n" -- conversion to and from external forms (such as "\r\n") are typically done by the I/O predicates. A final "\n" is preserved.

Options:

tab(N): Assume tabs at columns of with N. When omitted, tabs are taken literally and only exact matches are removed.
chars(CodesOrString): Characters to remove. This can notably be used to remove additional characters such as * or‘|‘. Default is " \t".