updated for version 7.0001

runtime/indent/perl.vim

@@ -0,0 +1,180 @@
+" Vim indent file
+" Language:	Perl
+" Author:	Rafael Garcia-Suarez <rgarciasuarez@free.fr>
+" URL:		http://rgarciasuarez.free.fr/vim/indent/perl.vim
+" Last Change:	2003 Apr 25
+
+" Suggestions and improvements by :
+"   Aaron J. Sherman (use syntax for hints)
+"   Artem Chuprina (play nice with folding)
+
+" TODO 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") && &syntax == "perl"
+
+let s:cpo_save = &cpo
+set cpo-=C
+
+setlocal indentexpr=GetPerlIndent()
+setlocal indentkeys+=0=,0),0=or,0=and
+if !b:indent_use_syntax
+  setlocal indentkeys+=0=EO
+endif
+
+" Only define the function once.
+if exists("*GetPerlIndent")
+  finish
+endif
+
+function GetPerlIndent()
+
+  " Get the line to be indented
+  let cline = getline(v:lnum)
+
+  " Indent POD markers to column 0
+  if cline =~ '^\s*=\L\@!'
+    return 0
+  endif
+
+  " Don't reindent coments on first column
+  if cline =~ '^#.'
+    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 == "perlPOD" || csynid == "perlHereDoc" || csynid =~ "^pod"
+    return indent(v:lnum)
+  endif
+
+  " Indent end-of-heredocs markers to column 0
+  if b:indent_use_syntax
+    " Assumes that an end-of-heredoc marker matches \I\i* to avoid
+    " confusion with other types of strings
+    if csynid == "perlStringStartEnd" && cline =~ '^\I\i*$'
+      return 0
+    endif
+  else
+    " Without syntax hints, assume that end-of-heredocs markers begin with EO
+    if cline =~ '^\s*EO'
+      return 0
+    endif
+  endif
+
+  " Now get the indent of the previous perl line.
+
+  " Find a non-blank line above the current line.
+  let lnum = prevnonblank(v:lnum - 1)
+  " Hit the start of the file, use zero indent.
+  if lnum == 0
+    return 0
+  endif
+  let line = getline(lnum)
+  let ind = indent(lnum)
+  " Skip heredocs, POD, and comments on 1st column
+  if b:indent_use_syntax
+    let skippin = 2
+    while skippin
+      let synid = synIDattr(synID(lnum,1,0),"name")
+      if (synid == "perlStringStartEnd" && line =~ '^\I\i*$')
+	    \ || (skippin != 2 && synid == "perlPOD")
+	    \ || (skippin != 2 && synid == "perlHereDoc")
+	    \ || synid == "perlComment"
+	    \ || synid =~ "^pod"
+	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
+  else
+    if line =~ "^EO"
+      let lnum = search("<<[\"']\\=EO", "bW")
+      let line = getline(lnum)
+      let ind = indent(lnum)
+    endif
+  endif
+
+  " Indent blocks enclosed by {} or ()
+  if b:indent_use_syntax
+    " Find a real opening brace
+    let bracepos = match(line, '[(){}]', matchend(line, '^\s*[)}]'))
+    while bracepos != -1
+      let synid = synIDattr(synID(lnum, bracepos + 1, 0), "name")
+      " If the brace is highlighted in one of those groups, indent it.
+      " 'perlHereDoc' is here only to handle the case '&foo(<<EOF)'.
+      if synid == ""
+	    \ || synid == "perlMatchStartEnd"
+	    \ || synid == "perlHereDoc"
+	    \ || synid =~ "^perlFiledescStatement"
+	    \ || synid =~ '^perl\(Sub\|BEGINEND\|If\)Fold'
+	let brace = strpart(line, bracepos, 1)
+	if brace == '(' || brace == '{'
+	  let ind = ind + &sw
+	else
+	  let ind = ind - &sw
+	endif
+      endif
+      let bracepos = match(line, '[(){}]', bracepos + 1)
+    endwhile
+    let bracepos = matchend(cline, '^\s*[)}]')
+    if bracepos != -1
+      let synid = synIDattr(synID(v:lnum, bracepos, 0), "name")
+      if synid == ""
+	    \ || synid == "perlMatchStartEnd"
+	    \ || synid =~ '^perl\(Sub\|BEGINEND\|If\)Fold'
+	let ind = ind - &sw
+      endif
+    endif
+  else
+    if line =~ '[{(]\s*\(#[^)}]*\)\=$'
+      let ind = ind + &sw
+    endif
+    if cline =~ '^\s*[)}]'
+      let ind = ind - &sw
+    endif
+  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=2:sw=2