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95 lines
2.7 KiB
VimL
95 lines
2.7 KiB
VimL
" Vim indent file
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" Language: Dylan
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" Maintainer: Brent A. Fulgham <bfulgham@debian.org> (Invalid email address)
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" Doug Kearns <dougkearns@gmail.com>
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" Version: 0.01
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" Last Change: 2022 Apr 06
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" Only load this indent file when no other was loaded.
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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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setlocal indentkeys+==~begin,=~block,=~case,=~cleanup,=~define,=~end,=~else,=~elseif,=~exception,=~for,=~finally,=~if,=~otherwise,=~select,=~unless,=~while
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" Define the appropriate indent function but only once
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setlocal indentexpr=DylanGetIndent()
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let b:undo_indent = "setl inde< indk<"
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if exists("*DylanGetIndent")
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finish
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endif
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function DylanGetIndent()
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" Get the line to be indented
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let cline = getline(v:lnum)
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" Don't reindent comments on first column
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if cline =~ '^/\[/\*]'
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return 0
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endif
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"Find the previous non-blank line
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let lnum = prevnonblank(v:lnum - 1)
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"Use zero indent at the top of the file
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if lnum == 0
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return 0
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endif
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let prevline=getline(lnum)
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let ind = indent(lnum)
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let chg = 0
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" If previous line was a comment, use its indent
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if prevline =~ '^\s*//'
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return ind
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endif
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" If previous line was a 'define', indent
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if prevline =~? '\(^\s*\(begin\|block\|case\|define\|else\|elseif\|for\|finally\|if\|select\|unless\|while\)\|\s*\S*\s*=>$\)'
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let chg = shiftwidth()
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" local methods indent the shift-width, plus 6 for the 'local'
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elseif prevline =~? '^\s*local'
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let chg = shiftwidth() + 6
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" If previous line was a let with no closing semicolon, indent
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elseif prevline =~? '^\s*let.*[^;]\s*$'
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let chg = shiftwidth()
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" If previous line opened a parenthesis, and did not close it, indent
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elseif prevline =~ '^.*(\s*[^)]*\((.*)\)*[^)]*$'
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return = match( prevline, '(.*\((.*)\|[^)]\)*.*$') + 1
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"elseif prevline =~ '^.*(\s*[^)]*\((.*)\)*[^)]*$'
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elseif prevline =~ '^[^(]*)\s*$'
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" This line closes a parenthesis. Find opening
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let curr_line = prevnonblank(lnum - 1)
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while curr_line >= 0
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let str = getline(curr_line)
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if str !~ '^.*(\s*[^)]*\((.*)\)*[^)]*$'
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let curr_line = prevnonblank(curr_line - 1)
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else
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break
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endif
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endwhile
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if curr_line < 0
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return -1
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endif
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let ind = indent(curr_line)
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" Although we found the closing parenthesis, make sure this
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" line doesn't start with an indentable command:
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let curr_str = getline(curr_line)
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if curr_str =~? '^\s*\(begin\|block\|case\|define\|else\|elseif\|for\|finally\|if\|select\|unless\|while\)'
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let chg = shiftwidth()
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endif
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endif
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" If a line starts with end, un-indent (even if we just indented!)
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if cline =~? '^\s*\(cleanup\|end\|else\|elseif\|exception\|finally\|otherwise\)'
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let chg = chg - shiftwidth()
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endif
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return ind + chg
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endfunction
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" vim:sw=2 tw=130
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