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+" Vim support file to detect file types in scripts
+"
+" Maintainer: Bram Moolenaar <Bram@vim.org>
+" Last change: 2004 Apr 18
+
+" This file is called by an autocommand for every file that has just been
+" loaded into a buffer. It checks if the type of file can be recognized by
+" the file contents. The autocommand is in $VIMRUNTIME/filetype.vim.
+
+
+" Only do the rest when the FileType autocommand has not been triggered yet.
+if did_filetype()
+ finish
+endif
+
+" Load the user defined scripts file first
+" Only do this when the FileType autocommand has not been triggered yet
+if exists("myscriptsfile") && file_readable(expand(myscriptsfile))
+ execute "source " . myscriptsfile
+ if did_filetype()
+ finish
+ endif
+endif
+
+" Line continuation is used here, remove 'C' from 'cpoptions'
+let s:cpo_save = &cpo
+set cpo&vim
+
+let s:line1 = getline(1)
+
+if s:line1 =~ "^#!"
+ " A script that starts with "#!".
+
+ " Check for a line like "#!/usr/bin/env VAR=val bash". Turn it into
+ " "#!/usr/bin/bash" to make matching easier.
+ if s:line1 =~ '^#!\s*\S*\<env\s'
+ let s:line1 = substitute(s:line1, '\S\+=\S\+', '', 'g')
+ let s:line1 = substitute(s:line1, '\<env\s\+', '', '')
+ endif
+
+ " Get the program name.
+ " Only accept spaces in PC style paths: "#!c:/program files/perl [args]".
+ " If there is no path use the first word: "#!perl [path/args]".
+ " Otherwise get the last word after a slash: "#!/usr/bin/perl [path/args]".
+ if s:line1 =~ '^#!\s*\a:[/\\]'
+ let s:name = substitute(s:line1, '^#!.*[/\\]\(\i\+\).*', '\1', '')
+ elseif s:line1 =~ '^#!\s*[^/\\ ]*\>\([^/\\]\|$\)'
+ let s:name = substitute(s:line1, '^#!\s*\([^/\\ ]*\>\).*', '\1', '')
+ else
+ let s:name = substitute(s:line1, '^#!\s*\S*[/\\]\(\i\+\).*', '\1', '')
+ endif
+
+ " Bourne-like shell scripts: sh ksh bash bash2
+ if s:name =~ '^\(bash\|bash2\|ksh\|sh\)\>'
+ call SetFileTypeSH(s:line1) " defined in filetype.vim
+
+ " csh scripts
+ elseif s:name =~ '^csh\>'
+ if exists("g:filetype_csh")
+ let &ft = g:filetype_csh
+ else
+ set ft=csh
+ endif
+
+ " tcsh scripts
+ elseif s:name =~ '^tcsh\>'
+ set ft=tcsh
+
+ " Z shell scripts
+ elseif s:name =~ '^zsh\>'
+ set ft=zsh
+
+ " TCL scripts
+ elseif s:name =~ '^\(tclsh\|wish\|expectk\|itclsh\|itkwish\)\>'
+ set ft=tcl
+
+ " Expect scripts
+ elseif s:name =~ '^expect\>'
+ set ft=expect
+
+ " Gnuplot scripts
+ elseif s:name =~ '^gnuplot\>'
+ set ft=gnuplot
+
+ " Makefiles
+ elseif s:name =~ 'make\>'
+ set ft=make
+
+ " Perl
+ elseif s:name =~ 'perl'
+ set ft=perl
+
+ " PHP
+ elseif s:name =~ 'php'
+ set ft=php
+
+ " Python
+ elseif s:name =~ 'python'
+ set ft=python
+
+ " Groovy
+ elseif s:name =~ '^groovy\>'
+ set ft=groovy
+
+ " Ruby
+ elseif s:name =~ 'ruby'
+ set ft=ruby
+
+ " BC calculator
+ elseif s:name =~ '^bc\>'
+ set ft=bc
+
+ " sed
+ elseif s:name =~ 'sed\>'
+ set ft=sed
+
+ " OCaml-scripts
+ elseif s:name =~ 'ocaml'
+ set ft=ocaml
+
+ " Awk scripts
+ elseif s:name =~ 'awk\>'
+ set ft=awk
+
+ " Website MetaLanguage
+ elseif s:name =~ 'wml'
+ set ft=wml
+
+ " Scheme scripts
+ elseif s:name =~ 'scheme'
+ set ft=scheme
+
+ endif
+ unlet s:name
+
+else
+ " File does not start with "#!".
+
+ let s:line2 = getline(2)
+ let s:line3 = getline(3)
+ let s:line4 = getline(4)
+ let s:line5 = getline(5)
+
+ " Bourne-like shell scripts: sh ksh bash bash2
+ if s:line1 =~ '^:$'
+ call SetFileTypeSH(s:line1) " defined in filetype.vim
+
+ " Z shell scripts
+ elseif s:line1 =~ '^#compdef\>' || s:line1 =~ '^#autoload\>'
+ set ft=zsh
+
+ " ELM Mail files
+ elseif s:line1 =~ '^From [a-zA-Z][a-zA-Z_0-9\.=-]*\(@[^ ]*\)\= .*[12][09]\d\d$'
+ set ft=mail
+
+ " Mason
+ elseif s:line1 =~ '^<[%&].*>'
+ set ft=mason
+
+ " Vim scripts (must have '" vim' as the first line to trigger this)
+ elseif s:line1 =~ '^" *[vV]im$'
+ set ft=vim
+
+ " MOO
+ elseif s:line1 =~ '^\*\* LambdaMOO Database, Format Version \%([1-3]\>\)\@!\d\+ \*\*$'
+ set ft=moo
+
+ " Diff file:
+ " - "diff" in first line (context diff)
+ " - "Only in " in first line
+ " - "--- " in first line and "+++ " in second line (unified diff).
+ " - "*** " in first line and "--- " in second line (context diff).
+ " - "# It was generated by makepatch " in the second line (makepatch diff).
+ " - "Index: <filename>" in the first line (CVS file)
+ elseif s:line1 =~ '^\(diff\>\|Only in \|\d\+\(,\d\+\)\=[cda]\d\+\>\|# It was generated by makepatch \|Index:\s\+\f\+$\|===== \f\+ \d\+\.\d\+ vs edited\|==== //\f\+#\d\+\)'
+ \ || (s:line1 =~ '^--- ' && s:line2 =~ '^+++ ')
+ \ || (s:line1 =~ '^\*\*\* ' && s:line2 =~ '^--- ')
+ set ft=diff
+
+ " PostScript Files (must have %!PS as the first line, like a2ps output)
+ elseif s:line1 =~ '^%![ \t]*PS'
+ set ft=postscr
+
+ " M4 scripts: Guess there is a line that starts with "dnl".
+ elseif s:line1 =~ '^\s*dnl\>'
+ \ || s:line2 =~ '^\s*dnl\>'
+ \ || s:line3 =~ '^\s*dnl\>'
+ \ || s:line4 =~ '^\s*dnl\>'
+ \ || s:line5 =~ '^\s*dnl\>'
+ set ft=m4
+
+ " AmigaDos scripts
+ elseif $TERM == "amiga"
+ \ && (s:line1 =~ "^;" || s:line1 =~ '^\.[bB][rR][aA]')
+ set ft=amiga
+
+ " SiCAD scripts (must have procn or procd as the first line to trigger this)
+ elseif s:line1 =~? '^ *proc[nd] *$'
+ set ft=sicad
+
+ " Purify log files start with "**** Purify"
+ elseif s:line1 =~ '^\*\*\*\* Purify'
+ set ft=purifylog
+
+ " XML
+ elseif s:line1 =~ '<?\s*xml.*?>'
+ set ft=xml
+
+ " XHTML (e.g.: PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN")
+ elseif s:line1 =~ '\<DTD\s\+XHTML\s'
+ set ft=xhtml
+
+ " XXD output
+ elseif s:line1 =~ '^\x\{7}: \x\{2} \=\x\{2} \=\x\{2} \=\x\{2} '
+ set ft=xxd
+
+ " RCS/CVS log output
+ elseif s:line1 =~ '^RCS file:' || s:line2 =~ '^RCS file:'
+ set ft=rcslog
+
+ " CVS commit
+ elseif s:line2 =~ '^CVS:'
+ set ft=cvs
+
+ " Send-pr
+ elseif s:line1 =~ '^SEND-PR:'
+ set ft=sendpr
+
+ " SNNS files
+ elseif s:line1 =~ '^SNNS network definition file'
+ set ft=snnsnet
+ elseif s:line1 =~ '^SNNS pattern definition file'
+ set ft=snnspat
+ elseif s:line1 =~ '^SNNS result file'
+ set ft=snnsres
+
+ " Virata
+ elseif s:line1 =~ '^%.\{-}[Vv]irata'
+ \ || s:line2 =~ '^%.\{-}[Vv]irata'
+ \ || s:line3 =~ '^%.\{-}[Vv]irata'
+ \ || s:line4 =~ '^%.\{-}[Vv]irata'
+ \ || s:line5 =~ '^%.\{-}[Vv]irata'
+ set ft=virata
+
+ " Strace
+ elseif s:line1 =~ '^[0-9]* *execve('
+ set ft=strace
+
+ " VSE JCL
+ elseif s:line1 =~ '^\* $$ JOB\>' || s:line1 =~ '^// *JOB\>'
+ set ft=vsejcl
+
+ " TAK and SINDA
+ elseif s:line4 =~ 'K & K Associates' || s:line2 =~ 'TAK 2000'
+ set ft=takout
+ elseif s:line3 =~ 'S Y S T E M S I M P R O V E D '
+ set ft=sindaout
+ elseif getline(6) =~ 'Run Date: '
+ set ft=takcmp
+ elseif getline(9) =~ 'Node File 1'
+ set ft=sindacmp
+
+ " DNS zone files
+ elseif s:line1.s:line2 =~ '$ORIGIN\|$TTL\|IN\s*SOA'
+ \ || s:line1.s:line2.s:line3.s:line4 =~ 'BIND.*named'
+ set ft=dns
+
+ " BAAN
+ elseif s:line1 =~ '|\*\{1,80}' && s:line2 =~ 'VRC '
+ \ || s:line2 =~ '|\*\{1,80}' && s:line3 =~ 'VRC '
+ set ft=baan
+
+ " Valgrind
+ elseif s:line1 =~ '^==\d\+== valgrind'
+ set ft=valgrind
+
+ " Renderman Interface Bytestream
+ elseif s:line1 =~ '^##RenderMan'
+ set ft=rib
+
+ " Scheme scripts
+ elseif s:line1 =~ 'exec\s\+\S*scheme' || s:line2 =~ 'exec\s\+\S*scheme'
+ set ft=scheme
+
+ " CVS diff
+ else
+ let lnum = 1
+ while getline(lnum) =~ "^? " && lnum < line("$")
+ let lnum = lnum + 1
+ endwhile
+ if getline(lnum) =~ '^Index:\s\+\f\+$'
+ set ft=diff
+
+ " locale input files: Formal Definitions of Cultural Conventions
+ " filename must be like en_US, fr_FR@euro or en_US.UTF-8
+ elseif expand("%") =~ '\a\a_\a\a\($\|[.@]\)\|i18n$\|POSIX$\|translit_'
+ let lnum = 1
+ while lnum < 100 && lnum < line("$")
+ if getline(lnum) =~ '^LC_\(IDENTIFICATION\|CTYPE\|COLLATE\|MONETARY\|NUMERIC\|TIME\|MESSAGES\|PAPER\|TELEPHONE\|MEASUREMENT\|NAME\|ADDRESS\)$'
+ setf fdcc
+ break
+ endif
+ let lnum = lnum + 1
+ endwhile
+ endif
+
+ endif
+
+ unlet s:line2 s:line3 s:line4 s:line5
+
+endif
+
+" Restore 'cpoptions'
+let &cpo = s:cpo_save
+
+unlet s:cpo_save s:line1