vim9script # Vim functions for file type detection # # Maintainer: The Vim Project # Last Change: 2024 May 23 # Former Maintainer: Bram Moolenaar # These functions are moved here from runtime/filetype.vim to make startup # faster. export def Check_inp() if getline(1) =~ '%%' setf tex elseif getline(1) =~ '^\*' setf abaqus else var n = 1 var nmax = line("$") > 500 ? 500 : line("$") while n <= nmax if getline(n) =~? "^header surface data" setf trasys break endif n += 1 endwhile endif enddef # This function checks for the kind of assembly that is wanted by the user, or # can be detected from the first five lines of the file. export def FTasm() # make sure b:asmsyntax exists if !exists("b:asmsyntax") b:asmsyntax = "" endif if b:asmsyntax == "" FTasmsyntax() endif # if b:asmsyntax still isn't set, default to asmsyntax or GNU if b:asmsyntax == "" if exists("g:asmsyntax") b:asmsyntax = g:asmsyntax else b:asmsyntax = "asm" endif endif exe "setf " .. fnameescape(b:asmsyntax) enddef export def FTasmsyntax() # see if the file contains any asmsyntax=foo overrides. If so, change # b:asmsyntax appropriately var head = " " .. getline(1) .. " " .. getline(2) .. " " .. getline(3) .. " " .. getline(4) .. " " .. getline(5) .. " " var match = matchstr(head, '\sasmsyntax=\zs[a-zA-Z0-9]\+\ze\s') if match != '' b:asmsyntax = match elseif ((head =~? '\.title') || (head =~? '\.ident') || (head =~? '\.macro') || (head =~? '\.subtitle') || (head =~? '\.library')) b:asmsyntax = "vmasm" endif enddef var ft_visual_basic_content = '\c^\s*\%(Attribute\s\+VB_Name\|Begin\s\+\%(VB\.\|{\%(\x\+-\)\+\x\+}\)\)' # See FTfrm() for Visual Basic form file detection export def FTbas() if exists("g:filetype_bas") exe "setf " .. g:filetype_bas return endif # most frequent FreeBASIC-specific keywords in distro files var fb_keywords = '\c^\s*\%(extern\|var\|enum\|private\|scope\|union\|byref\|operator\|constructor\|delete\|namespace\|public\|property\|with\|destructor\|using\)\>\%(\s*[:=(]\)\@!' var fb_preproc = '\c^\s*\%(' .. # preprocessor '#\s*\a\+\|' .. # compiler option 'option\s\+\%(byval\|dynamic\|escape\|\%(no\)\=gosub\|nokeyword\|private\|static\)\>\|' .. # metacommand '\%(''\|rem\)\s*\$lang\>\|' .. # default datatype 'def\%(byte\|longint\|short\|ubyte\|uint\|ulongint\|ushort\)\>' .. '\)' var fb_comment = "^\\s*/'" # OPTION EXPLICIT, without the leading underscore, is common to many dialects var qb64_preproc = '\c^\s*\%($\a\+\|option\s\+\%(_explicit\|_\=explicitarray\)\>\)' for lnum in range(1, min([line("$"), 100])) var line = getline(lnum) if line =~ ft_visual_basic_content setf vb return elseif line =~ fb_preproc || line =~ fb_comment || line =~ fb_keywords setf freebasic return elseif line =~ qb64_preproc setf qb64 return endif endfor setf basic enddef export def FTbtm() if exists("g:dosbatch_syntax_for_btm") && g:dosbatch_syntax_for_btm setf dosbatch else setf btm endif enddef export def BindzoneCheck(default = '') if getline(1) .. getline(2) .. getline(3) .. getline(4) =~ '^; <<>> DiG [0-9.]\+.* <<>>\|$ORIGIN\|$TTL\|IN\s\+SOA' setf bindzone elseif default != '' exe 'setf ' .. default endif enddef # Returns true if file content looks like RAPID def IsRapid(sChkExt: string = ""): bool if sChkExt == "cfg" return getline(1) =~? '\v^%(EIO|MMC|MOC|PROC|SIO|SYS):CFG' endif # called from FTmod, FTprg or FTsys return getline(nextnonblank(1)) =~? '\v^\s*%(\%{3}|module\s+\k+\s*%(\(|$))' enddef export def FTcfg() if exists("g:filetype_cfg") exe "setf " .. g:filetype_cfg elseif IsRapid("cfg") setf rapid else setf cfg endif enddef export def FTcls() if exists("g:filetype_cls") exe "setf " .. g:filetype_cls return endif var line1 = getline(1) if line1 =~ '^#!.*\<\%(rexx\|regina\)\>' setf rexx return elseif line1 == 'VERSION 1.0 CLASS' setf vb return endif var nonblank1 = getline(nextnonblank(1)) if nonblank1 =~ '^\v%(\%|\\)' setf tex elseif nonblank1 =~ '^\s*\%(/\*\|::\w\)' setf rexx else setf st endif enddef export def FTlpc() if exists("g:lpc_syntax_for_c") var lnum = 1 while lnum <= 12 if getline(lnum) =~# '^\(//\|inherit\|private\|protected\|nosave\|string\|object\|mapping\|mixed\)' setf lpc return endif lnum += 1 endwhile endif setf c enddef export def FTheader() if match(getline(1, min([line("$"), 200])), '^@\(interface\|end\|class\)') > -1 if exists("g:c_syntax_for_h") setf objc else setf objcpp endif elseif exists("g:c_syntax_for_h") setf c elseif exists("g:ch_syntax_for_h") setf ch else setf cpp endif enddef # This function checks if one of the first ten lines start with a '@'. In # that case it is probably a change file. # If the first line starts with # or ! it's probably a ch file. # If a line has "main", "include", "//" or "/*" it's probably ch. # Otherwise CHILL is assumed. export def FTchange() var lnum = 1 while lnum <= 10 if getline(lnum)[0] == '@' setf change return endif if lnum == 1 && (getline(1)[0] == '#' || getline(1)[0] == '!') setf ch return endif if getline(lnum) =~ "MODULE" setf chill return endif if getline(lnum) =~ 'main\s*(\|#\s*include\|//' setf ch return endif lnum += 1 endwhile setf chill enddef export def FTent() # This function checks for valid cl syntax in the first five lines. # Look for either an opening comment, '#', or a block start, '{'. # If not found, assume SGML. var lnum = 1 while lnum < 6 var line = getline(lnum) if line =~ '^\s*[#{]' setf cl return elseif line !~ '^\s*$' # Not a blank line, not a comment, and not a block start, # so doesn't look like valid cl code. break endif lnum += 1 endwhile setf dtd enddef export def ExCheck() var lines = getline(1, min([line("$"), 100])) if exists('g:filetype_euphoria') exe 'setf ' .. g:filetype_euphoria elseif match(lines, '^--\|^ifdef\>\|^include\>') > -1 setf euphoria3 else setf elixir endif enddef export def EuphoriaCheck() if exists('g:filetype_euphoria') exe 'setf ' .. g:filetype_euphoria else setf euphoria3 endif enddef export def DtraceCheck() if did_filetype() # Filetype was already detected return endif var lines = getline(1, min([line("$"), 100])) if match(lines, '^module\>\|^import\>') > -1 # D files often start with a module and/or import statement. setf d elseif match(lines, '^#!\S\+dtrace\|#pragma\s\+D\s\+option\|:\S\{-}:\S\{-}:') > -1 setf dtrace else setf d endif enddef export def FTdef() # LaTeX def files are usually generated by docstrip, which will output '%%' in first line if getline(1) =~ '%%' setf tex endif if get(g:, "filetype_def", "") == "modula2" || IsModula2() SetFiletypeModula2() return endif if exists("g:filetype_def") exe "setf " .. g:filetype_def else setf def endif enddef export def FTe() if exists('g:filetype_euphoria') exe 'setf ' .. g:filetype_euphoria else var n = 1 while n < 100 && n <= line("$") if getline(n) =~ "^\\s*\\(<'\\|'>\\)\\s*$" setf specman return endif n += 1 endwhile setf eiffel endif enddef def IsForth(): bool var first_line = nextnonblank(1) # SwiftForth block comment (line is usually filled with '-' or '=') or # OPTIONAL (sometimes precedes the header comment) if getline(first_line) =~? '^\%({\%(\s\|$\)\|OPTIONAL\s\)' return true endif var n = first_line while n < 100 && n <= line("$") # Forth comments and colon definitions if getline(n) =~ '^[:(\\] ' return true endif n += 1 endwhile return false enddef # Distinguish between Forth and Fortran export def FTf() if exists("g:filetype_f") exe "setf " .. g:filetype_f elseif IsForth() setf forth else setf fortran endif enddef export def FTfrm() if exists("g:filetype_frm") exe "setf " .. g:filetype_frm return endif if getline(1) == "VERSION 5.00" setf vb return endif var lines = getline(1, min([line("$"), 5])) if match(lines, ft_visual_basic_content) > -1 setf vb else setf form endif enddef # Distinguish between Forth and F# export def FTfs() if exists("g:filetype_fs") exe "setf " .. g:filetype_fs elseif IsForth() setf forth else setf fsharp endif enddef # Recursively search for Hare source files in a directory and any # subdirectories, up to a given depth. def IsHareModule(dir: string, depth: number): bool if depth <= 0 return !empty(glob(dir .. '/*.ha')) endif return reduce(sort(glob(dir .. '/*', true, true), (a, b) => isdirectory(a) - isdirectory(b)), (acc, n) => acc || n =~ '\.ha$' || isdirectory(n) && IsHareModule(n, depth - 1), false) enddef # Determine if a README file exists within a Hare module and should be given the # Haredoc filetype. export def FTharedoc() if exists('g:filetype_haredoc') if IsHareModule(':h', get(g:, 'haredoc_search_depth', 1)) setf haredoc endif endif enddef # Distinguish between HTML, XHTML and Django export def FThtml() var n = 1 while n < 10 && n <= line("$") if getline(n) =~ '\\|{#\s\+' setf htmldjango return endif n += 1 endwhile setf FALLBACK html enddef # Distinguish between standard IDL and MS-IDL export def FTidl() var n = 1 while n < 50 && n <= line("$") if getline(n) =~ '^\s*import\s\+"\(unknwn\|objidl\)\.idl"' setf msidl return endif n += 1 endwhile setf idl enddef # Distinguish between "default", Prolog, zsh module's C and Cproto prototype file. export def ProtoCheck(default: string) # zsh modules use '#include "*.pro"' # https://github.com/zsh-users/zsh/blob/63f086d167960a27ecdbcb762179e2c2bf8a29f5/Src/Modules/example.c#L31 if getline(1) =~ '/* Generated automatically */' setf c # Cproto files have a comment in the first line and a function prototype in # the second line, it always ends in ";". Indent files may also have # comments, thus we can't match comments to see the difference. # IDL files can have a single ';' in the second line, require at least one # chacter before the ';'. elseif getline(2) =~ '.;$' setf cpp else # recognize Prolog by specific text in the first non-empty line # require a blank after the '%' because Perl uses "%list" and "%translate" var lnum = getline(nextnonblank(1)) if lnum =~ '\' || lnum =~ '^\s*\(%\+\(\s\|$\)\|/\*\)' || lnum =~ ':-' setf prolog else exe 'setf ' .. default endif endif enddef export def FTm() if exists("g:filetype_m") exe "setf " .. g:filetype_m return endif # excluding end(for|function|if|switch|while) common to Murphi var octave_block_terminators = '\' var objc_preprocessor = '^\s*#\s*\%(import\|include\|define\|if\|ifn\=def\|undef\|line\|error\|pragma\)\>' var n = 1 var saw_comment = 0 # Whether we've seen a multiline comment leader. while n < 100 var line = getline(n) if line =~ '^\s*/\*' # /* ... */ is a comment in Objective C and Murphi, so we can't conclude # it's either of them yet, but track this as a hint in case we don't see # anything more definitive. saw_comment = 1 endif if line =~ '^\s*//' || line =~ '^\s*@import\>' || line =~ objc_preprocessor setf objc return endif if line =~ '^\s*\%(#\|%!\)' || line =~ '^\s*unwind_protect\>' || \ line =~ '\%(^\|;\)\s*' .. octave_block_terminators setf octave return endif # TODO: could be Matlab or Octave if line =~ '^\s*%' setf matlab return endif if line =~ '^\s*(\*' setf mma return endif if line =~ '^\c\s*\(\(type\|var\)\>\|--\)' setf murphi return endif n += 1 endwhile if saw_comment # We didn't see anything definitive, but this looks like either Objective C # or Murphi based on the comment leader. Assume the former as it is more # common. setf objc else # Default is Matlab setf matlab endif enddef export def FTmms() var n = 1 while n < 20 var line = getline(n) if line =~ '^\s*\(%\|//\)' || line =~ '^\*' setf mmix return endif if line =~ '^\s*#' setf make return endif n += 1 endwhile setf mmix enddef # This function checks if one of the first five lines start with a dot. In # that case it is probably an nroff file: 'filetype' is set and 1 is returned. export def FTnroff(): number if getline(1)[0] .. getline(2)[0] .. getline(3)[0] .. getline(4)[0] .. getline(5)[0] =~ '\.' setf nroff return 1 endif return 0 enddef export def FTmm() var n = 1 while n < 20 if getline(n) =~ '^\s*\(#\s*\(include\|import\)\>\|@import\>\|/\*\)' setf objcpp return endif n += 1 endwhile setf nroff enddef # Returns true if file content looks like LambdaProlog module def IsLProlog(): bool # skip apparent comments and blank lines, what looks like # LambdaProlog comment may be RAPID header var lnum: number = nextnonblank(1) while lnum > 0 && lnum < line('$') && getline(lnum) =~ '^\s*%' # LambdaProlog comment lnum = nextnonblank(lnum + 1) endwhile # this pattern must not catch a go.mod file return getline(lnum) =~ '\= 0 dialect = matches[1] endif if index(KNOWN_EXTENSIONS, matches[2]) >= 0 extension = matches[2] endif break endif endfor modula2#SetDialect(dialect, extension) setf modula2 enddef # Determine if *.mod is ABB RAPID, LambdaProlog, Modula-2, Modsim III or go.mod export def FTmod() if get(g:, "filetype_mod", "") == "modula2" || IsModula2() SetFiletypeModula2() return endif if exists("g:filetype_mod") exe "setf " .. g:filetype_mod elseif expand("") =~ '\' || line =~ '^\s*\(%\+\(\s\|$\)\|/\*\)' || line =~ ':-' setf prolog else setf perl endif endif enddef export def FTinc() if exists("g:filetype_inc") exe "setf " .. g:filetype_inc else var lines = getline(1) .. getline(2) .. getline(3) if lines =~? "perlscript" setf aspperl elseif lines =~ "<%" setf aspvbs elseif lines =~ "' || lines =~# '[A-Z][A-Za-z0-9_:${}]*\s\+\%(??\|[?:+]\)\?= ' setf bitbake else FTasmsyntax() if exists("b:asmsyntax") exe "setf " .. fnameescape(b:asmsyntax) else setf pov endif endif endif enddef export def FTprogress_cweb() if exists("g:filetype_w") exe "setf " .. g:filetype_w return endif if getline(1) =~ '&ANALYZE' || getline(3) =~ '&GLOBAL-DEFINE' setf progress else setf cweb endif enddef # These include the leading '%' sign var ft_swig_keywords = '^\s*%\%(addmethods\|apply\|beginfile\|clear\|constant\|define\|echo\|enddef\|endoffile\|extend\|feature\|fragment\|ignore\|import\|importfile\|include\|includefile\|inline\|insert\|keyword\|module\|name\|namewarn\|native\|newobject\|parms\|pragma\|rename\|template\|typedef\|typemap\|types\|varargs\|warn\)' # This is the start/end of a block that is copied literally to the processor file (C/C++) var ft_swig_verbatim_block_start = '^\s*%{' export def FTi() if exists("g:filetype_i") exe "setf " .. g:filetype_i return endif # This function checks for an assembly comment or a SWIG keyword or verbatim block in the first 50 lines. # If not found, assume Progress. var lnum = 1 while lnum <= 50 && lnum < line('$') var line = getline(lnum) if line =~ '^\s*;' || line =~ '^\*' FTasm() return elseif line =~ ft_swig_keywords || line =~ ft_swig_verbatim_block_start setf swig return endif lnum += 1 endwhile setf progress enddef var ft_pascal_comments = '^\s*\%({\|(\*\|//\)' var ft_pascal_keywords = '^\s*\%(program\|unit\|library\|uses\|begin\|procedure\|function\|const\|type\|var\)\>' export def FTprogress_pascal() if exists("g:filetype_p") exe "setf " .. g:filetype_p return endif # This function checks for valid Pascal syntax in the first ten lines. # Look for either an opening comment or a program start. # If not found, assume Progress. var lnum = 1 while lnum <= 10 && lnum < line('$') var line = getline(lnum) if line =~ ft_pascal_comments || line =~? ft_pascal_keywords setf pascal return elseif line !~ '^\s*$' || line =~ '^/\*' # Not an empty line: Doesn't look like valid Pascal code. # Or it looks like a Progress /* comment break endif lnum += 1 endwhile setf progress enddef export def FTpp() if exists("g:filetype_pp") exe "setf " .. g:filetype_pp else var line = getline(nextnonblank(1)) if line =~ ft_pascal_comments || line =~? ft_pascal_keywords setf pascal else setf puppet endif endif enddef # Determine if *.prg is ABB RAPID. Can also be Clipper, FoxPro or eviews export def FTprg() if exists("g:filetype_prg") exe "setf " .. g:filetype_prg elseif IsRapid() setf rapid else # Nothing recognized, assume Clipper setf clipper endif enddef export def FTr() var max = line("$") > 50 ? 50 : line("$") for n in range(1, max) # Rebol is easy to recognize, check for that first if getline(n) =~? '\' setf rebol return endif endfor for n in range(1, max) # R has # comments if getline(n) =~ '^\s*#' setf r return endif # Rexx has /* comments */ if getline(n) =~ '^\s*/\*' setf rexx return endif endfor # Nothing recognized, use user default or assume Rexx if exists("g:filetype_r") exe "setf " .. g:filetype_r else # Rexx used to be the default, but R appears to be much more popular. setf r endif enddef export def McSetf() # Rely on the file to start with a comment. # MS message text files use ';', Sendmail files use '#' or 'dnl' for lnum in range(1, min([line("$"), 20])) var line = getline(lnum) if line =~ '^\s*\(#\|dnl\)' setf m4 # Sendmail .mc file return elseif line =~ '^\s*;' setf msmessages # MS Message text file return endif endfor setf m4 # Default: Sendmail .mc file enddef # Called from filetype.vim and scripts.vim. # When "setft" is passed and false then the 'filetype' option is not set. export def SetFileTypeSH(name: string, setft = true): string if setft && did_filetype() # Filetype was already detected return '' endif if setft && expand("") =~ g:ft_ignore_pat return '' endif if name =~ '\' # Some .sh scripts contain #!/bin/csh. return SetFileTypeShell("csh", setft) elseif name =~ '\' # Some .sh scripts contain #!/bin/tcsh. return SetFileTypeShell("tcsh", setft) elseif name =~ '\' # Some .sh scripts contain #!/bin/zsh. return SetFileTypeShell("zsh", setft) elseif name =~ '\' b:is_kornshell = 1 if exists("b:is_bash") unlet b:is_bash endif if exists("b:is_sh") unlet b:is_sh endif elseif exists("g:bash_is_sh") || name =~ '\' || name =~ '\' b:is_bash = 1 if exists("b:is_kornshell") unlet b:is_kornshell endif if exists("b:is_sh") unlet b:is_sh endif elseif name =~ '\' || name =~ '\' # Ubuntu links "sh" to "dash", thus it is expected to work the same way b:is_sh = 1 if exists("b:is_kornshell") unlet b:is_kornshell endif if exists("b:is_bash") unlet b:is_bash endif endif return SetFileTypeShell("sh", setft) enddef # For shell-like file types, check for an "exec" command hidden in a comment, # as used for Tcl. # When "setft" is passed and false then the 'filetype' option is not set. # Also called from scripts.vim, thus can't be local to this script. export def SetFileTypeShell(name: string, setft = true): string if setft && did_filetype() # Filetype was already detected return '' endif if setft && expand("") =~ g:ft_ignore_pat return '' endif var lnum = 2 while lnum < 20 && lnum < line("$") && getline(lnum) =~ '^\s*\(#\|$\)' # Skip empty and comment lines. lnum += 1 endwhile if lnum < line("$") && getline(lnum) =~ '\s*exec\s' && getline(lnum - 1) =~ '^\s*#.*\\$' # Found an "exec" line after a comment with continuation var n = substitute(getline(lnum), '\s*exec\s\+\([^ ]*/\)\=', '', '') if n =~ '\:p') if path =~ '/\(etc/udev/\%(rules\.d/\)\=.*\.rules\|\%(usr/\)\=lib/udev/\%(rules\.d/\)\=.*\.rules\)$' setf udevrules return endif if path =~ '^/etc/ufw/' setf conf # Better than hog return endif if path =~ '^/\(etc\|usr/share\)/polkit-1/rules\.d' setf javascript return endif var config_lines: list try config_lines = readfile('/etc/udev/udev.conf') catch /^Vim\%((\a\+)\)\=:E484/ setf hog return endtry var dir = expand(':p:h') for line in config_lines if line =~ ft_rules_udev_rules_pattern var udev_rules = substitute(line, ft_rules_udev_rules_pattern, '\1', "") if dir == udev_rules setf udevrules endif break endif endfor setf hog enddef export def SQL() if exists("g:filetype_sql") exe "setf " .. g:filetype_sql else setf sql endif enddef # This function checks the first 25 lines of file extension "sc" to resolve # detection between scala and SuperCollider. # NOTE: We don't check for 'Class : Method', as this can easily be confused # with valid Scala like `val x : Int = 3`. So we instead only rely on # checks that can't be confused. export def FTsc() for lnum in range(1, min([line("$"), 25])) if getline(lnum) =~# 'var\s<\|classvar\s<\|\^this.*\||\w\+|\|+\s\w*\s{\|\*ar\s' setf supercollider return endif endfor setf scala enddef # This function checks the first line of file extension "scd" to resolve # detection between scdoc and SuperCollider export def FTscd() if getline(1) =~# '\%^\S\+(\d[0-9A-Za-z]*)\%(\s\+\"[^"]*\"\%(\s\+\"[^"]*\"\)\=\)\=$' setf scdoc else setf supercollider endif enddef # If the file has an extension of 't' and is in a directory 't' or 'xt' then # it is almost certainly a Perl test file. # If the first line starts with '#' and contains 'perl' it's probably a Perl # file. # (Slow test) If a file contains a 'use' statement then it is almost certainly # a Perl file. export def FTperl(): number var dirname = expand("%:p:h:t") if expand("%:e") == 't' && (dirname == 't' || dirname == 'xt') setf perl return 1 endif if getline(1)[0] == '#' && getline(1) =~ 'perl' setf perl return 1 endif var save_cursor = getpos('.') call cursor(1, 1) var has_use = search('^use\s\s*\k', 'c', 30) > 0 call setpos('.', save_cursor) if has_use setf perl return 1 endif return 0 enddef # LambdaProlog and Standard ML signature files export def FTsig() if exists("g:filetype_sig") exe "setf " .. g:filetype_sig return endif var lprolog_comment = '^\s*\%(/\*\|%\)' var lprolog_keyword = '^\s*sig\s\+\a' var sml_comment = '^\s*(\*' var sml_keyword = '^\s*\%(signature\|structure\)\s\+\a' var line = getline(nextnonblank(1)) if line =~ lprolog_comment || line =~# lprolog_keyword setf lprolog elseif line =~ sml_comment || line =~# sml_keyword setf sml endif enddef # This function checks the first 100 lines of files matching "*.sil" to # resolve detection between Swift Intermediate Language and SILE. export def FTsil() for lnum in range(1, [line('$'), 100]->min()) var line: string = getline(lnum) if line =~ '^\s*[\\%]' setf sile return elseif line =~ '^\s*\S' setf sil return endif endfor # no clue, default to "sil" setf sil enddef export def FTsys() if exists("g:filetype_sys") exe "setf " .. g:filetype_sys elseif IsRapid() setf rapid else setf bat endif enddef # Choose context, plaintex, or tex (LaTeX) based on these rules: # 1. Check the first line of the file for "%&". # 2. Check the first 1000 non-comment lines for LaTeX or ConTeXt keywords. # 3. Default to "plain" or to g:tex_flavor, can be set in user's vimrc. export def FTtex() var firstline = getline(1) var format: string if firstline =~ '^%&\s*\a\+' format = tolower(matchstr(firstline, '\a\+')) format = substitute(format, 'pdf', '', '') if format == 'tex' format = 'latex' elseif format == 'plaintex' format = 'plain' endif elseif expand('%') =~ 'tex/context/.*/.*.tex' format = 'context' else # Default value, may be changed later: format = exists("g:tex_flavor") ? g:tex_flavor : 'plain' # Save position, go to the top of the file, find first non-comment line. var save_cursor = getpos('.') call cursor(1, 1) var firstNC = search('^\s*[^[:space:]%]', 'c', 1000) if firstNC > 0 # Check the next thousand lines for a LaTeX or ConTeXt keyword. var lpat = 'documentclass\>\|usepackage\>\|begin{\|newcommand\>\|renewcommand\>' var cpat = 'start\a\+\|setup\a\+\|usemodule\|enablemode\|enableregime\|setvariables\|useencoding\|usesymbols\|stelle\a\+\|verwende\a\+\|stel\a\+\|gebruik\a\+\|usa\a\+\|imposta\a\+\|regle\a\+\|utilisemodule\>' var kwline = search('^\s*\\\%(' .. lpat .. '\)\|^\s*\\\(' .. cpat .. '\)', 'cnp', firstNC + 1000) if kwline == 1 # lpat matched format = 'latex' elseif kwline == 2 # cpat matched format = 'context' endif # If neither matched, keep default set above. # let lline = search('^\s*\\\%(' . lpat . '\)', 'cn', firstNC + 1000) # let cline = search('^\s*\\\%(' . cpat . '\)', 'cn', firstNC + 1000) # if cline > 0 # let format = 'context' # endif # if lline > 0 && (cline == 0 || cline > lline) # let format = 'tex' # endif endif # firstNC call setpos('.', save_cursor) endif # firstline =~ '^%&\s*\a\+' # Translation from formats to file types. TODO: add AMSTeX, RevTex, others? if format == 'plain' setf plaintex elseif format == 'context' setf context else # probably LaTeX setf tex endif return enddef export def FTxml() var n = 1 while n < 100 && n <= line("$") var line = getline(n) # DocBook 4 or DocBook 5. var is_docbook4 = line =~ '\)' && getline(n) !~ '^\s*#\s*include' setf racc return endif n += 1 endwhile setf yacc enddef export def Redif() var lnum = 1 while lnum <= 5 && lnum < line('$') if getline(lnum) =~ "^\ctemplate-type:" setf redif return endif lnum += 1 endwhile enddef # This function is called for all files under */debian/patches/*, make sure not # to non-dep3patch files, such as README and other text files. export def Dep3patch() if expand('%:t') ==# 'series' return endif for ln in getline(1, 100) if ln =~# '^\%(Description\|Subject\|Origin\|Bug\|Forwarded\|Author\|From\|Reviewed-by\|Acked-by\|Last-Updated\|Applied-Upstream\):' setf dep3patch return elseif ln =~# '^---' # end of headers found. stop processing return endif endfor enddef # This function checks the first 15 lines for appearance of 'FoamFile' # and then 'object' in a following line. # In that case, it's probably an OpenFOAM file export def FTfoam() var ffile = 0 var lnum = 1 while lnum <= 15 if getline(lnum) =~# '^FoamFile' ffile = 1 elseif ffile == 1 && getline(lnum) =~# '^\s*object' setf foam return endif lnum += 1 endwhile enddef # Determine if a *.tf file is TF mud client or terraform export def FTtf() var numberOfLines = line('$') for i in range(1, numberOfLines) var currentLine = trim(getline(i)) var firstCharacter = currentLine[0] if firstCharacter !=? ";" && firstCharacter !=? "/" && firstCharacter !=? "" setf terraform return endif endfor setf tf enddef var ft_krl_header = '\&\w+' # Determine if a *.src file is Kuka Robot Language export def FTsrc() var ft_krl_def_or_deffct = '%(global\s+)?def%(fct)?>' if exists("g:filetype_src") exe "setf " .. g:filetype_src elseif getline(nextnonblank(1)) =~? '\v^\s*%(' .. ft_krl_header .. '|' .. ft_krl_def_or_deffct .. ')' setf krl endif enddef # Determine if a *.dat file is Kuka Robot Language export def FTdat() var ft_krl_defdat = 'defdat>' if exists("g:filetype_dat") exe "setf " .. g:filetype_dat elseif getline(nextnonblank(1)) =~? '\v^\s*%(' .. ft_krl_header .. '|' .. ft_krl_defdat .. ')' setf krl endif enddef export def FTlsl() if exists("g:filetype_lsl") exe "setf " .. g:filetype_lsl endif var line = getline(nextnonblank(1)) if line =~ '^\s*%' || line =~# ':\s*trait\s*$' setf larch else setf lsl endif enddef export def FTtyp() if exists("g:filetype_typ") exe "setf " .. g:filetype_typ return endif # Look for SQL type definition syntax for line in getline(1, 200) # SQL type files may define the casing if line =~ '^CASE\s\==\s\=\(SAME\|LOWER\|UPPER\|OPPOSITE\)$' setf sql return endif # SQL type files may define some types as follows if line =~ '^TYPE\s.*$' setf sql return endif endfor # Otherwise, affect the typst filetype setf typst enddef # Set the filetype of a *.v file to Verilog, V or Cog based on the first 200 # lines. export def FTv() if did_filetype() # ":setf" will do nothing, bail out early return endif if exists("g:filetype_v") exe "setf " .. g:filetype_v return endif var in_comment = 0 for lnum in range(1, min([line("$"), 200])) var line = getline(lnum) # Skip Verilog and V comments (lines and blocks). if line =~ '^\s*/\*' # start comment block in_comment = 1 endif if in_comment == 1 if line =~ '\*/' # end comment block in_comment = 0 endif # skip comment-block line continue endif if line =~ '^\s*//' # skip comment line continue endif # Coq: line ends with a '.' followed by an optional variable number of # spaces or contains the start of a comment, but not inside a Verilog or V # comment. # Example: "Definition x := 10. (*". if (line =~ '\.\s*$' && line !~ '/[/*]') || (line =~ '(\*' && line !~ '/[/*].*(\*') setf coq return endif # Verilog: line ends with ';' followed by an optional variable number of # spaces and an optional start of a comment. # Example: " b <= a + 1; // Add 1". if line =~ ';\s*\(/[/*].*\)\?$' setf verilog return endif endfor # No line matched, fall back to "v". setf v enddef export def FTvba() if getline(1) =~ '^["#] Vimball Archiver' setf vim else setf vb endif enddef export def Detect_UCI_statements(): bool # Match a config or package statement at the start of the line. const config_or_package_statement = '^\s*\(\(c\|config\)\|\(p\|package\)\)\s\+\S' # Match a line that is either all blank or blank followed by a comment const comment_or_blank = '^\s*\(#.*\)\?$' # Return true iff the file has a config or package statement near the # top of the file and all preceding lines were comments or blank. return getline(1) =~# config_or_package_statement \ || getline(1) =~# comment_or_blank \ && ( getline(2) =~# config_or_package_statement \ || getline(2) =~# comment_or_blank \ && getline(3) =~# config_or_package_statement \ ) enddef # Uncomment this line to check for compilation errors early # defcompile