forked from aniani/vim
149 lines
4.3 KiB
VimL
149 lines
4.3 KiB
VimL
vim9script
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# 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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if exists("b:did_indent")
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finish
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endif
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b:did_indent = 1
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var undo_opts = "setl indentexpr< indentkeys< lisp< autoindent<"
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if exists('b:undo_indent')
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b:undo_indent ..= "|" .. undo_opts
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else
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b:undo_indent = 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=GDScriptIndent()
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setlocal indentkeys+=<:>,=elif,=except
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def GDScriptIndent(): number
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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$"
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return -1
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endif
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# Search backwards for the previous non-empty line.
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var plnum = prevnonblank(v:lnum - 1)
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if plnum == 0
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# This is the first non-empty line, use zero indent.
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return 0
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endif
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var plindent = indent(plnum)
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var plnumstart = plnum
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# Get the line and remove a trailing comment.
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# Use syntax highlighting attributes when possible.
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var pline = getline(plnum)
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var pline_len = strlen(pline)
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if has('syntax_items')
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# If the last character in the line is a comment, do a binary search for
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# the start of the comment. synID() is slow, a linear search would take
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# too long on a long line.
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if synIDattr(synID(plnum, pline_len, 1), "name") =~ "\\(Comment\\|Todo\\)$"
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var min = 1
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var max = pline_len
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while min < max
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var col = (min + max) / 2
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if synIDattr(synID(plnum, col, 1), "name") =~ "\\(Comment\\|Todo\\)$"
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max = col
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else
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min = col + 1
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endif
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endwhile
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pline = strpart(pline, 0, min - 1)
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endif
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else
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var col = 0
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while col < pline_len
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if pline[col] == '#'
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pline = strpart(pline, 0, col)
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break
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endif
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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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var 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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var 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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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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enddef
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