1 " Vim support file to detect file types in scripts
3 " Maintainer: Bram Moolenaar <Bram@vim.org>
4 " Last change: 2013 May 24
6 " This file is called by an autocommand for every file that has just been
7 " loaded into a buffer. It checks if the type of file can be recognized by
8 " the file contents. The autocommand is in $VIMRUNTIME/filetype.vim.
11 " Only do the rest when the FileType autocommand has not been triggered yet.
16 " Load the user defined scripts file first
17 " Only do this when the FileType autocommand has not been triggered yet
18 if exists("myscriptsfile") && filereadable(expand(myscriptsfile))
19 execute "source " . myscriptsfile
25 " Line continuation is used here, remove 'C' from 'cpoptions'
29 let s:line1 = getline(1)
32 " A script that starts with "#!".
34 " Check for a line like "#!/usr/bin/env VAR=val bash". Turn it into
35 " "#!/usr/bin/bash" to make matching easier.
36 if s:line1 =~ '^#!\s*\S*\<env\s'
37 let s:line1 = substitute(s:line1, '\S\+=\S\+', '', 'g')
38 let s:line1 = substitute(s:line1, '\<env\s\+', '', '')
41 " Get the program name.
42 " Only accept spaces in PC style paths: "#!c:/program files/perl [args]".
43 " If the word env is used, use the first word after the space:
44 " "#!/usr/bin/env perl [path/args]"
45 " If there is no path use the first word: "#!perl [path/args]".
46 " Otherwise get the last word after a slash: "#!/usr/bin/perl [path/args]".
47 if s:line1 =~ '^#!\s*\a:[/\\]'
48 let s:name = substitute(s:line1, '^#!.*[/\\]\(\i\+\).*', '\1', '')
49 elseif s:line1 =~ '^#!.*\<env\>'
50 let s:name = substitute(s:line1, '^#!.*\<env\>\s\+\(\i\+\).*', '\1', '')
51 elseif s:line1 =~ '^#!\s*[^/\\ ]*\>\([^/\\]\|$\)'
52 let s:name = substitute(s:line1, '^#!\s*\([^/\\ ]*\>\).*', '\1', '')
54 let s:name = substitute(s:line1, '^#!\s*\S*[/\\]\(\i\+\).*', '\1', '')
57 " tcl scripts may have #!/bin/sh in the first line and "exec wish" in the
58 " third line. Suggested by Steven Atkinson.
59 if getline(3) =~ '^exec wish'
63 " Bourne-like shell scripts: bash bash2 ksh ksh93 sh
64 if s:name =~ '^\(bash\d*\|\|ksh\d*\|sh\)\>'
65 call SetFileTypeSH(s:line1) " defined in filetype.vim
68 elseif s:name =~ '^csh\>'
69 if exists("g:filetype_csh")
70 call SetFileTypeShell(g:filetype_csh)
72 call SetFileTypeShell("csh")
76 elseif s:name =~ '^tcsh\>'
77 call SetFileTypeShell("tcsh")
80 elseif s:name =~ '^zsh\>'
84 elseif s:name =~ '^\(tclsh\|wish\|expectk\|itclsh\|itkwish\)\>'
88 elseif s:name =~ '^expect\>'
92 elseif s:name =~ '^gnuplot\>'
96 elseif s:name =~ 'make\>'
100 elseif s:name =~ 'lua'
104 elseif s:name =~ 'perl6'
108 elseif s:name =~ 'perl'
112 elseif s:name =~ 'php'
116 elseif s:name =~ 'python'
120 elseif s:name =~ '^groovy\>'
124 elseif s:name =~ 'ruby'
128 elseif s:name =~ '^bc\>'
132 elseif s:name =~ 'sed\>'
136 elseif s:name =~ 'ocaml'
140 elseif s:name =~ 'awk\>'
143 " Website MetaLanguage
144 elseif s:name =~ 'wml'
148 elseif s:name =~ 'scheme'
152 elseif s:name =~ 'cfengine'
156 elseif s:name =~ 'escript'
163 " File does not start with "#!".
165 let s:line2 = getline(2)
166 let s:line3 = getline(3)
167 let s:line4 = getline(4)
168 let s:line5 = getline(5)
170 " Bourne-like shell scripts: sh ksh bash bash2
172 call SetFileTypeSH(s:line1) " defined in filetype.vim
175 elseif s:line1 =~ '^#compdef\>' || s:line1 =~ '^#autoload\>' ||
176 \ "\n".s:line1."\n".s:line2."\n".s:line3."\n".s:line4."\n".s:line5 =~ '\n\s*emulate\s\+\%(-[LR]\s\+\)\=[ckz]\=sh\>'
180 elseif s:line1 =~ '^From \([a-zA-Z][a-zA-Z_0-9\.=-]*\(@[^ ]*\)\=\|-\) .* \(19\|20\)\d\d$'
184 elseif s:line1 =~ '^<[%&].*>'
187 " Vim scripts (must have '" vim' as the first line to trigger this)
188 elseif s:line1 =~ '^" *[vV]im$'
192 elseif s:line1 =~ '^\*\* LambdaMOO Database, Format Version \%([1-3]\>\)\@!\d\+ \*\*$'
196 " - "diff" in first line (context diff)
197 " - "Only in " in first line
198 " - "--- " in first line and "+++ " in second line (unified diff).
199 " - "*** " in first line and "--- " in second line (context diff).
200 " - "# It was generated by makepatch " in the second line (makepatch diff).
201 " - "Index: <filename>" in the first line (CVS file)
202 " - "=== ", line of "=", "---", "+++ " (SVK diff)
203 " - "=== ", "--- ", "+++ " (bzr diff, common case)
204 " - "=== (removed|added|renamed|modified)" (bzr diff, alternative)
205 " - "# HG changeset patch" in first line (Mercurial export format)
206 elseif s:line1 =~ '^\(diff\>\|Only in \|\d\+\(,\d\+\)\=[cda]\d\+\>\|# It was generated by makepatch \|Index:\s\+\f\+\r\=$\|===== \f\+ \d\+\.\d\+ vs edited\|==== //\f\+#\d\+\|# HG changeset patch\)'
207 \ || (s:line1 =~ '^--- ' && s:line2 =~ '^+++ ')
208 \ || (s:line1 =~ '^\* looking for ' && s:line2 =~ '^\* comparing to ')
209 \ || (s:line1 =~ '^\*\*\* ' && s:line2 =~ '^--- ')
210 \ || (s:line1 =~ '^=== ' && ((s:line2 =~ '^=\{66\}' && s:line3 =~ '^--- ' && s:line4 =~ '^+++') || (s:line2 =~ '^--- ' && s:line3 =~ '^+++ ')))
211 \ || (s:line1 =~ '^=== \(removed\|added\|renamed\|modified\)')
214 " PostScript Files (must have %!PS as the first line, like a2ps output)
215 elseif s:line1 =~ '^%![ \t]*PS'
218 " M4 scripts: Guess there is a line that starts with "dnl".
219 elseif s:line1 =~ '^\s*dnl\>'
220 \ || s:line2 =~ '^\s*dnl\>'
221 \ || s:line3 =~ '^\s*dnl\>'
222 \ || s:line4 =~ '^\s*dnl\>'
223 \ || s:line5 =~ '^\s*dnl\>'
227 elseif $TERM == "amiga"
228 \ && (s:line1 =~ "^;" || s:line1 =~ '^\.[bB][rR][aA]')
231 " SiCAD scripts (must have procn or procd as the first line to trigger this)
232 elseif s:line1 =~? '^ *proc[nd] *$'
235 " Purify log files start with "**** Purify"
236 elseif s:line1 =~ '^\*\*\*\* Purify'
240 elseif s:line1 =~ '<?\s*xml.*?>'
243 " XHTML (e.g.: PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN")
244 elseif s:line1 =~ '\<DTD\s\+XHTML\s'
247 " HTML (e.g.: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN")
248 elseif s:line1 =~? '\<DOCTYPE\s\+html\>'
252 elseif s:line1 =~ '^%PDF-'
256 elseif s:line1 =~ '^\x\{7}: \x\{2} \=\x\{2} \=\x\{2} \=\x\{2} '
260 elseif s:line1 =~ '^RCS file:' || s:line2 =~ '^RCS file:'
264 elseif s:line2 =~ '^CVS:' || getline("$") =~ '^CVS: '
268 elseif s:line1 =~ '^!R!'
272 elseif s:line1 =~ '^SEND-PR:'
276 elseif s:line1 =~ '^SNNS network definition file'
278 elseif s:line1 =~ '^SNNS pattern definition file'
280 elseif s:line1 =~ '^SNNS result file'
284 elseif s:line1 =~ '^%.\{-}[Vv]irata'
285 \ || s:line2 =~ '^%.\{-}[Vv]irata'
286 \ || s:line3 =~ '^%.\{-}[Vv]irata'
287 \ || s:line4 =~ '^%.\{-}[Vv]irata'
288 \ || s:line5 =~ '^%.\{-}[Vv]irata'
292 elseif s:line1 =~ '^\(\[pid \d\+\] \)\=[0-9:.]* *execve(' || s:line1 =~ '^__libc_start_main'
296 elseif s:line1 =~ '^\* $$ JOB\>' || s:line1 =~ '^// *JOB\>'
300 elseif s:line4 =~ 'K & K Associates' || s:line2 =~ 'TAK 2000'
302 elseif s:line3 =~ 'S Y S T E M S I M P R O V E D '
304 elseif getline(6) =~ 'Run Date: '
306 elseif getline(9) =~ 'Node File 1'
310 elseif s:line1.s:line2.s:line3.s:line4 =~ '^; <<>> DiG [0-9.]\+ <<>>\|BIND.*named\|$ORIGIN\|$TTL\|IN\s\+SOA'
314 elseif s:line1 =~ '|\*\{1,80}' && s:line2 =~ 'VRC '
315 \ || s:line2 =~ '|\*\{1,80}' && s:line3 =~ 'VRC '
319 elseif s:line1 =~ '^==\d\+== valgrind' || s:line3 =~ '^==\d\+== Using valgrind'
322 " Renderman Interface Bytestream
323 elseif s:line1 =~ '^##RenderMan'
327 elseif s:line1 =~ 'exec\s\+\S*scheme' || s:line2 =~ 'exec\s\+\S*scheme'
331 elseif s:line1 =~ '^\(commit\|tree\|object\) \x\{40\}\>\|^tag \S\+$'
334 " Gprof (gnu profiler)
335 elseif s:line1 == 'Flat profile:'
337 \ && s:line3 =~ '^Each sample counts as .* seconds.$'
341 " (See also: http://www.gnu.org/software/emacs/manual/html_node/emacs/Choosing-Modes.html#Choosing-Modes)
342 elseif s:line1 =~? '-\*-.*erlang.*-\*-'
348 while getline(s:lnum) =~ "^? " && s:lnum < line("$")
351 if getline(s:lnum) =~ '^Index:\s\+\f\+$'
354 " locale input files: Formal Definitions of Cultural Conventions
355 " filename must be like en_US, fr_FR@euro or en_US.UTF-8
356 elseif expand("%") =~ '\a\a_\a\a\($\|[.@]\)\|i18n$\|POSIX$\|translit_'
358 while s:lnum < 100 && s:lnum < line("$")
359 if getline(s:lnum) =~ '^LC_\(IDENTIFICATION\|CTYPE\|COLLATE\|MONETARY\|NUMERIC\|TIME\|MESSAGES\|PAPER\|TELEPHONE\|MEASUREMENT\|NAME\|ADDRESS\)$'
370 unlet s:line2 s:line3 s:line4 s:line5
374 " Restore 'cpoptions'
375 let &cpo = s:cpo_save
377 unlet s:cpo_save s:line1