155 lines
4.4 KiB
VimL
155 lines
4.4 KiB
VimL
" Vim indent file
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" Language: gdscript (Godot game engine)
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" Maintainer: Maxim Kim <habamax@gmail.com>
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" Based on python indent file.
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"
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" This file has been manually translated from Vim9 script.
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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let s:save_cpo = &cpo
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set cpo&vim
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let s:undo_opts = "setl indentexpr< indentkeys< lisp< autoindent<"
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if exists('b:undo_indent')
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let b:undo_indent ..= "|" .. s:undo_opts
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else
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let b:undo_indent = s:undo_opts
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endif
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setlocal nolisp
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setlocal autoindent
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setlocal indentexpr=s:GDScriptIndent()
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setlocal indentkeys+=<:>,=elif,=except
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function s:GDScriptIndent() abort
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" If this line is explicitly joined: If the previous line was also joined,
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" line it up with that one, otherwise add two 'shiftwidth'
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if getline(v:lnum - 1) =~# '\\$'
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if v:lnum > 1 && getline(v:lnum - 2) =~# '\\$'
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return indent(v:lnum - 1)
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endif
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return indent(v:lnum - 1) + (shiftwidth() * 2)
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endif
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" If the start of the line is in a string don't change the indent.
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if has('syntax_items') && synIDattr(synID(v:lnum, 1, 1), "name") =~# "String$"
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return -1
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endif
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" Search backwards for the previous non-empty line.
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let plnum = prevnonblank(v:lnum - 1)
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if plnum == 0
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" This is the first non-empty line, use zero indent.
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return 0
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endif
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let plindent = indent(plnum)
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let plnumstart = plnum
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" Get the line and remove a trailing comment.
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" Use syntax highlighting attributes when possible.
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let pline = getline(plnum)
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let pline_len = strlen(pline)
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if has('syntax_items')
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" If the last character in the line is a comment, do a binary search for
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" the start of the comment. synID() is slow, a linear search would take
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" too long on a long line.
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if synIDattr(synID(plnum, pline_len, 1), "name") =~# "\\(Comment\\|Todo\\)$"
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let min = 1
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let max = pline_len
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while min < max
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let col = (min + max) / 2
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if synIDattr(synID(plnum, col, 1), "name") =~# "\\(Comment\\|Todo\\)$"
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let max = col
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else
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let min = col + 1
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endif
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endwhile
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let pline = strpart(pline, 0, min - 1)
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endif
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else
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let col = 0
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while col < pline_len
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if pline[col] ==# '#'
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let pline = strpart(pline, 0, col)
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break
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endif
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let col = col + 1
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endwhile
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endif
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" When "inside" parenthesis: If at the first line below the parenthesis add
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" one 'shiftwidth' ("inside" is simplified and not really checked)
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" my_var = (
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" a
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" + b
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" + c
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" )
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if pline =~# '[({\[]\s*$'
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return indent(plnum) + shiftwidth()
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endif
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" If the previous line ended with a colon, indent this line
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if pline =~# ':\s*$'
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return plindent + shiftwidth()
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endif
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" If the previous line was a stop-execution statement...
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if getline(plnum) =~# '^\s*\(break\|continue\|raise\|return\|pass\)\>'
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" See if the user has already dedented
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if indent(v:lnum) > indent(plnum) - shiftwidth()
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" If not, recommend one dedent
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return indent(plnum) - shiftwidth()
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endif
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" Otherwise, trust the user
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return -1
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endif
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" If the current line begins with a keyword that lines up with "try"
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if getline(v:lnum) =~# '^\s*\(except\|finally\)\>'
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let lnum = v:lnum - 1
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while lnum >= 1
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if getline(lnum) =~# '^\s*\(try\|except\)\>'
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let ind = indent(lnum)
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if ind >= indent(v:lnum)
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return -1 " indent is already less than this
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endif
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return ind " line up with previous try or except
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endif
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let lnum = lnum - 1
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endwhile
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return -1 " no matching "try"!
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endif
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" If the current line begins with a header keyword, dedent
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if getline(v:lnum) =~# '^\s*\(elif\|else\)\>'
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" Unless the previous line was a one-liner
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if getline(plnumstart) =~# '^\s*\(for\|if\|try\)\>'
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return plindent
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endif
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" Or the user has already dedented
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if indent(v:lnum) <= plindent - shiftwidth()
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return -1
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endif
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return plindent - shiftwidth()
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endif
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return -1
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endfunction
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let &cpo = s:save_cpo
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unlet s:save_cpo
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