1" Vim indent file 2" Language: Perl 3" Author: Rafael Garcia-Suarez <[email protected]> 4" URL: http://rgarciasuarez.free.fr/vim/indent/perl.vim 5" Last Change: 2005 Sep 07 6 7" Suggestions and improvements by : 8" Aaron J. Sherman (use syntax for hints) 9" Artem Chuprina (play nice with folding) 10 11" TODO things that are not or not properly indented (yet) : 12" - Continued statements 13" print "foo", 14" "bar"; 15" print "foo" 16" if bar(); 17" - Multiline regular expressions (m//x) 18" (The following probably needs modifying the perl syntax file) 19" - qw() lists 20" - Heredocs with terminators that don't match \I\i* 21 22" Only load this indent file when no other was loaded. 23if exists("b:did_indent") 24 finish 25endif 26let b:did_indent = 1 27 28" Is syntax highlighting active ? 29let b:indent_use_syntax = has("syntax") 30 31setlocal indentexpr=GetPerlIndent() 32setlocal indentkeys+=0=,0),0=or,0=and 33if !b:indent_use_syntax 34 setlocal indentkeys+=0=EO 35endif 36 37" Only define the function once. 38if exists("*GetPerlIndent") 39 finish 40endif 41 42let s:cpo_save = &cpo 43set cpo-=C 44 45function GetPerlIndent() 46 47 " Get the line to be indented 48 let cline = getline(v:lnum) 49 50 " Indent POD markers to column 0 51 if cline =~ '^\s*=\L\@!' 52 return 0 53 endif 54 55 " Don't reindent coments on first column 56 if cline =~ '^#.' 57 return 0 58 endif 59 60 " Get current syntax item at the line's first char 61 let csynid = '' 62 if b:indent_use_syntax 63 let csynid = synIDattr(synID(v:lnum,1,0),"name") 64 endif 65 66 " Don't reindent POD and heredocs 67 if csynid == "perlPOD" || csynid == "perlHereDoc" || csynid =~ "^pod" 68 return indent(v:lnum) 69 endif 70 71 " Indent end-of-heredocs markers to column 0 72 if b:indent_use_syntax 73 " Assumes that an end-of-heredoc marker matches \I\i* to avoid 74 " confusion with other types of strings 75 if csynid == "perlStringStartEnd" && cline =~ '^\I\i*$' 76 return 0 77 endif 78 else 79 " Without syntax hints, assume that end-of-heredocs markers begin with EO 80 if cline =~ '^\s*EO' 81 return 0 82 endif 83 endif 84 85 " Now get the indent of the previous perl line. 86 87 " Find a non-blank line above the current line. 88 let lnum = prevnonblank(v:lnum - 1) 89 " Hit the start of the file, use zero indent. 90 if lnum == 0 91 return 0 92 endif 93 let line = getline(lnum) 94 let ind = indent(lnum) 95 " Skip heredocs, POD, and comments on 1st column 96 if b:indent_use_syntax 97 let skippin = 2 98 while skippin 99 let synid = synIDattr(synID(lnum,1,0),"name") 100 if (synid == "perlStringStartEnd" && line =~ '^\I\i*$') 101 \ || (skippin != 2 && synid == "perlPOD") 102 \ || (skippin != 2 && synid == "perlHereDoc") 103 \ || synid == "perlComment" 104 \ || synid =~ "^pod" 105 let lnum = prevnonblank(lnum - 1) 106 if lnum == 0 107 return 0 108 endif 109 let line = getline(lnum) 110 let ind = indent(lnum) 111 let skippin = 1 112 else 113 let skippin = 0 114 endif 115 endwhile 116 else 117 if line =~ "^EO" 118 let lnum = search("<<[\"']\\=EO", "bW") 119 let line = getline(lnum) 120 let ind = indent(lnum) 121 endif 122 endif 123 124 " Indent blocks enclosed by {} or () 125 if b:indent_use_syntax 126 " Find a real opening brace 127 let bracepos = match(line, '[(){}]', matchend(line, '^\s*[)}]')) 128 while bracepos != -1 129 let synid = synIDattr(synID(lnum, bracepos + 1, 0), "name") 130 " If the brace is highlighted in one of those groups, indent it. 131 " 'perlHereDoc' is here only to handle the case '&foo(<<EOF)'. 132 if synid == "" 133 \ || synid == "perlMatchStartEnd" 134 \ || synid == "perlHereDoc" 135 \ || synid =~ "^perlFiledescStatement" 136 \ || synid =~ '^perl\(Sub\|BEGINEND\|If\)Fold' 137 let brace = strpart(line, bracepos, 1) 138 if brace == '(' || brace == '{' 139 let ind = ind + &sw 140 else 141 let ind = ind - &sw 142 endif 143 endif 144 let bracepos = match(line, '[(){}]', bracepos + 1) 145 endwhile 146 let bracepos = matchend(cline, '^\s*[)}]') 147 if bracepos != -1 148 let synid = synIDattr(synID(v:lnum, bracepos, 0), "name") 149 if synid == "" 150 \ || synid == "perlMatchStartEnd" 151 \ || synid =~ '^perl\(Sub\|BEGINEND\|If\)Fold' 152 let ind = ind - &sw 153 endif 154 endif 155 else 156 if line =~ '[{(]\s*\(#[^)}]*\)\=$' 157 let ind = ind + &sw 158 endif 159 if cline =~ '^\s*[)}]' 160 let ind = ind - &sw 161 endif 162 endif 163 164 " Indent lines that begin with 'or' or 'and' 165 if cline =~ '^\s*\(or\|and\)\>' 166 if line !~ '^\s*\(or\|and\)\>' 167 let ind = ind + &sw 168 endif 169 elseif line =~ '^\s*\(or\|and\)\>' 170 let ind = ind - &sw 171 endif 172 173 return ind 174 175endfunction 176 177let &cpo = s:cpo_save 178unlet s:cpo_save 179 180" vim:ts=8:sts=2:sw=2 181