view runtime/indent/logtalk.vim @ 31531:6e24001000ed v9.0.1098

patch 9.0.1098: code uses too much indent Commit: https://github.com/vim/vim/commit/465de3a57b815f1188c707e7c083950c81652536 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Mon Dec 26 12:50:04 2022 +0000 patch 9.0.1098: code uses too much indent Problem: Code uses too much indent. Solution: Use an early return. (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/11747)
author Bram Moolenaar <Bram@vim.org>
date Mon, 26 Dec 2022 14:00:07 +0100
parents 5c5908e81e93
children 5c220cf30f1f
line wrap: on
line source

"  Maintainer:	Paulo Moura <pmoura@logtalk.org>
"  Revised on:	2018.08.04
"  Language:	Logtalk

" This Logtalk indent file is a modified version of the Prolog
" indent file written by Gergely Kontra

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
	finish
endif

let b:did_indent = 1

setlocal indentexpr=GetLogtalkIndent()
setlocal indentkeys-=:,0#
setlocal indentkeys+=0%,-,0;,>,0)

" Only define the function once.
if exists("*GetLogtalkIndent")
	finish
endif

function! GetLogtalkIndent()
	" Find a non-blank line above the current line.
	let pnum = prevnonblank(v:lnum - 1)
	" Hit the start of the file, use zero indent.
	if pnum == 0
		return 0
	endif
	let line = getline(v:lnum)
	let pline = getline(pnum)

	let ind = indent(pnum)
	" Previous line was comment -> use previous line's indent
	if pline =~ '^\s*%'
		retu ind
	endif
	" Check for entity opening directive on previous line
	if pline =~ '^\s*:-\s\(object\|protocol\|category\)\ze(.*,$'
		let ind = ind + shiftwidth()
	" Check for clause head on previous line
	elseif pline =~ ':-\s*\(%.*\)\?$'
		let ind = ind + shiftwidth()
	" Check for grammar rule head on previous line
	elseif pline =~ '-->\s*\(%.*\)\?$'
		let ind = ind + shiftwidth()
	" Check for entity closing directive on previous line
	elseif pline =~ '^\s*:-\send_\(object\|protocol\|category\)\.\(%.*\)\?$'
		let ind = ind - shiftwidth()
	" Check for end of clause on previous line
	elseif pline =~ '\.\s*\(%.*\)\?$'
		let ind = ind - shiftwidth()
	endif
	" Check for opening conditional on previous line
	if pline =~ '^\s*\([(;]\|->\)' && pline !~ '\.\s*\(%.*\)\?$' && pline !~ '^.*\([)][,]\s*\(%.*\)\?$\)'
		let ind = ind + shiftwidth()
	endif
	" Check for closing an unclosed paren, or middle ; or ->
	if line =~ '^\s*\([);]\|->\)'
		let ind = ind - shiftwidth()
	endif
	return ind
endfunction