#!/usr/bin/env nomsu -V4.11.12.8
#
    Auto-format Nomsu code. Usage:
    nomsu tools/autoformat.nom [-i] file1 file2 directory1 ...
    If the first argument is "-i", modifications will be performed in-place. Otherwise,
    the formatted code will be printed.
    
use "lib/os.nom"

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

%args = (command line args)
for %filename in %args.extra_args:
    %file = (read file %filename)
    unless %file:
        barf "File does not exist: \%filename"
    %leading_indent = (%file::matching "[\n]*([ ]*)")
    %code = (NomsuCode from (%Source %filename 1 (size of %file)) %file)
    %tree = (%code parsed)
    %formatted = "\
        ..\%leading_indent\(((%tree as nomsu)::text)::with "\n" -> "\n\%leading_indent")"
    
    if %args."-i":
        write %formatted to file %filename
    ..else:
        say %formatted inline