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" Vim indent file
" Language: tf (TinyFugue)
" Maintainer: Christian J. Robinson <heptite@gmail.com>
" URL: http://www.vim.org/scripts/script.php?script_id=174
" Last Change: 2022 Apr 25
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal indentexpr=GetTFIndent()
setlocal indentkeys-=0{,0} indentkeys-=0# indentkeys-=:
setlocal indentkeys+==/endif,=/then,=/else,=/done,0;
let b:undo_indent = "setlocal indentexpr< indentkeys<"
" Only define the function once:
if exists("*GetTFIndent")
finish
endif
function GetTFIndent()
" Find a non-blank line above the current line:
let lnum = prevnonblank(v:lnum - 1)
" No indent for the start of the file:
if lnum == 0
return 0
endif
let ind = indent(lnum)
let line = getline(lnum)
" No indentation if the previous line didn't end with "\":
" (Could be annoying, but it lets you know if you made a mistake.)
if line !~ '\\$'
return 0
endif
if line =~ '\(/def.*\\\|/for.*\(%;\s*\)\@\<!\\\)$'
let ind = ind + shiftwidth()
elseif line =~ '\(/if\|/else\|/then\)'
if line !~ '/endif'
let ind = ind + shiftwidth()
endif
elseif line =~ '/while'
if line !~ '/done'
let ind = ind + shiftwidth()
endif
endif
let line = getline(v:lnum)
if line =~ '\(/else\|/endif\|/then\)'
if line !~ '/if'
let ind = ind - shiftwidth()
endif
elseif line =~ '/done'
if line !~ '/while'
let ind = ind - shiftwidth()
endif
endif
" Comments at the beginning of a line:
if line =~ '^\s*;'
let ind = 0
endif
return ind
endfunction
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