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" Vim indent file
" Language: Hamster Script
" Version: 2.0.6.1
" Last Change: 2021 Oct 11
" Maintainer: David Fishburn <dfishburn dot vim at gmail dot com>
" Download: https://www.vim.org/scripts/script.php?script_id=1099
"
" 2.0.6.1 (Oct 2021)
" Added b:undo_indent
" Added cpo check
"
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal indentkeys+==~if,=~else,=~endif,=~endfor,=~endwhile
setlocal indentkeys+==~do,=~until,=~while,=~repeat,=~for,=~loop
setlocal indentkeys+==~sub,=~endsub
let b:undo_indent = "setl indentkeys<"
" Define the appropriate indent function but only once
setlocal indentexpr=HamGetFreeIndent()
if exists("*HamGetFreeIndent")
finish
endif
let s:keepcpo = &cpo
set cpo&vim
function HamGetIndent(lnum)
let ind = indent(a:lnum)
let prevline=getline(a:lnum)
" Add a shiftwidth to statements following if, else, elseif,
" case, select, default, do, until, while, for, start
if prevline =~? '^\s*\<\(if\|else\%(if\)\?\|for\|repeat\|do\|while\|sub\)\>'
let ind = ind + shiftwidth()
endif
" Subtract a shiftwidth from else, elseif, end(if|while|for), until
let line = getline(v:lnum)
if line =~? '^\s*\(else\|elseif\|loop\|until\|end\%(if\|while\|for\|sub\)\)\>'
let ind = ind - shiftwidth()
endif
return ind
endfunction
function HamGetFreeIndent()
" Find the previous non-blank line
let lnum = prevnonblank(v:lnum - 1)
" Use zero indent at the top of the file
if lnum == 0
return 0
endif
let ind=HamGetIndent(lnum)
return ind
endfunction
" Restore:
let &cpo = s:keepcpo
unlet s:keepcpo
" vim:sw=2 tw=80
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