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" Vim indent file
" Language: Perl 6
" Maintainer: vim-perl <vim-perl@googlegroups.com>
" Homepage: http://github.com/vim-perl/vim-perl
" Bugs/requests: http://github.com/vim-perl/vim-perl/issues
" Last Change: {{LAST_CHANGE}}
" Contributors: Andy Lester <andy@petdance.com>
" Hinrik Örn Sigurðsson <hinrik.sig@gmail.com>
"
" Adapted from indent/perl.vim by Rafael Garcia-Suarez <rgarciasuarez@free.fr>
" Suggestions and improvements by :
" Aaron J. Sherman (use syntax for hints)
" Artem Chuprina (play nice with folding)
" TODO:
" This file still relies on stuff from the Perl 5 syntax file, which Perl 6
" does not use.
"
" Things that are not or not properly indented (yet) :
" - Continued statements
" print "foo",
" "bar";
" print "foo"
" if bar();
" - Multiline regular expressions (m//x)
" (The following probably needs modifying the perl syntax file)
" - qw() lists
" - Heredocs with terminators that don't match \I\i*
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
" Is syntax highlighting active ?
let b:indent_use_syntax = has("syntax")
setlocal indentexpr=GetPerl6Indent()
" we reset it first because the Perl 5 indent file might have been loaded due
" to a .pl/pm file extension, and indent files don't clean up afterwards
setlocal indentkeys&
setlocal indentkeys+=0=,0),0],0>,0»,0=or,0=and
if !b:indent_use_syntax
setlocal indentkeys+=0=EO
endif
let s:cpo_save = &cpo
set cpo-=C
function! GetPerl6Indent()
" Get the line to be indented
let cline = getline(v:lnum)
" Indent POD markers to column 0
if cline =~ '^\s*=\L\@!'
return 0
endif
" Get current syntax item at the line's first char
let csynid = ''
if b:indent_use_syntax
let csynid = synIDattr(synID(v:lnum,1,0),"name")
endif
" Don't reindent POD and heredocs
if csynid =~ "^p6Pod"
return indent(v:lnum)
endif
" Now get the indent of the previous perl line.
" Find a non-blank line above the current line.
let lnum = prevnonblank(v:lnum - 1)
" Hit the start of the file, use zero indent.
if lnum == 0
return 0
endif
let line = getline(lnum)
let ind = indent(lnum)
" Skip heredocs, POD, and comments on 1st column
if b:indent_use_syntax
let skippin = 2
while skippin
let synid = synIDattr(synID(lnum,1,0),"name")
if (synid =~ "^p6Pod" || synid =~ "p6Comment")
let lnum = prevnonblank(lnum - 1)
if lnum == 0
return 0
endif
let line = getline(lnum)
let ind = indent(lnum)
let skippin = 1
else
let skippin = 0
endif
endwhile
endif
if line =~ '[<«\[{(]\s*\(#[^)}\]»>]*\)\=$'
let ind = ind + &sw
endif
if cline =~ '^\s*[)}\]»>]'
let ind = ind - &sw
endif
" Indent lines that begin with 'or' or 'and'
if cline =~ '^\s*\(or\|and\)\>'
if line !~ '^\s*\(or\|and\)\>'
let ind = ind + &sw
endif
elseif line =~ '^\s*\(or\|and\)\>'
let ind = ind - &sw
endif
return ind
endfunction
let &cpo = s:cpo_save
unlet s:cpo_save
" vim:ts=8:sts=4:sw=4:expandtab:ft=vim
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