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" Vim completion script " Language: All languages, uses existing syntax highlighting rules " Maintainer: David Fishburn <dfishburn dot vim at gmail dot com> " Version: 15.0 " Last Change: 2021 Apr 27 " Usage: For detailed help, ":help ft-syntax-omni" " History " " Version 15.0 " - SyntaxComplete ignored all buffer specific overrides, always used global " https://github.com/vim/vim/issues/8153 " " Version 14.0 " - Fixed issue with single quotes and is_keyword " https://github.com/vim/vim/issues/7463 " " Version 13.0 " - Extended the option omni_syntax_group_include_{filetype} " to accept a comma separated list of regex's rather than " string. For example, for the javascript filetype you could " use: " let g:omni_syntax_group_include_javascript = 'javascript\w\+,jquery\w\+' " - Some syntax files (perl.vim) use the match // syntax as a mechanism " to identify keywords. This update attempts to parse the " match syntax and pull out syntax items which are at least " 3 words or more. " " Version 12.0 " - It is possible to have '-' as part of iskeyword, when " checking for character ranges, tighten up the regex. " E688: More targets than List items. " " Version 11.0 " - Corrected which characters required escaping during " substitution calls. " " Version 10.0 " - Cycle through all the character ranges specified in the " iskeyword option and build a list of valid word separators. " Prior to this change, only actual characters were used, " where for example ASCII "45" == "-". If "45" were used " in iskeyword the hyphen would not be picked up. " This introduces a new option, since the character ranges " specified could be multibyte: " let g:omni_syntax_use_single_byte = 1 " - This by default will only allow single byte ASCII " characters to be added and an additional check to ensure " the character is printable (see documentation for isprint). " " Version 9.0 " - Add the check for cpo. " " Version 8.0 " - Updated SyntaxCSyntaxGroupItems() " - Some additional syntax items were also allowed " on nextgroup= lines which were ignored by default. " Now these lines are processed independently. " " Version 7.0 " - Updated syntaxcomplete#OmniSyntaxList() " - Looking up the syntax groups defined from a syntax file " looked for only 1 format of {filetype}GroupName, but some " syntax writers use this format as well: " {b:current_syntax}GroupName " - OmniSyntaxList() will now check for both if the first " method does not find a match. " " Version 6.0 " - Added syntaxcomplete#OmniSyntaxList() " - Allows other plugins to use this for their own " purposes. " - It will return a List of all syntax items for the " syntax group name passed in. " - XPTemplate for SQL will use this function via the " sqlcomplete plugin to populate a Choose box. " " Version 5.0 " - Updated SyntaxCSyntaxGroupItems() " - When processing a list of syntax groups, the final group " was missed in function SyntaxCSyntaxGroupItems. " " Set completion with CTRL-X CTRL-O to autoloaded function. " This check is in place in case this script is " sourced directly instead of using the autoload feature. if exists('+omnifunc') " Do not set the option if already set since this " results in an E117 warning. if &omnifunc == "" setlocal omnifunc=syntaxcomplete#Complete endif endif if exists('g:loaded_syntax_completion') finish endif let g:loaded_syntax_completion = 150 " Turn on support for line continuations when creating the script let s:cpo_save = &cpo set cpo&vim " Set ignorecase to the ftplugin standard " This is the default setting, but if you define a buffer local " variable you can override this on a per filetype. if !exists('g:omni_syntax_ignorecase') let g:omni_syntax_ignorecase = &ignorecase endif " Indicates whether we should use the iskeyword option to determine " how to split words. " This is the default setting, but if you define a buffer local " variable you can override this on a per filetype. if !exists('g:omni_syntax_use_iskeyword') let g:omni_syntax_use_iskeyword = 1 endif " When using iskeyword, this setting controls whether the characters " should be limited to single byte characters. if !exists('g:omni_syntax_use_single_byte') let g:omni_syntax_use_single_byte = 1 endif " When using iskeyword, this setting controls whether the characters " should be limited to single byte characters. if !exists('g:omni_syntax_use_iskeyword_numeric') let g:omni_syntax_use_iskeyword_numeric = 1 endif " Only display items in the completion window that are at least " this many characters in length. " This is the default setting, but if you define a buffer local " variable you can override this on a per filetype. if !exists('g:omni_syntax_minimum_length') let g:omni_syntax_minimum_length = 0 endif " This script will build a completion list based on the syntax " elements defined by the files in $VIMRUNTIME/syntax. " let s:syn_remove_words = 'match,matchgroup=,contains,'. let s:syn_remove_words = 'matchgroup=,contains,'. \ 'links to,start=,end=' " \ 'links to,start=,end=,nextgroup=' let s:cache_name = [] let s:cache_list = [] let s:prepended = '' " This function is used for the 'omnifunc' option. function! syntaxcomplete#Complete(findstart, base) " Allow user to override ignorecase per buffer let l:omni_syntax_ignorecase = g:omni_syntax_ignorecase if exists('b:omni_syntax_ignorecase') let l:omni_syntax_ignorecase = b:omni_syntax_ignorecase endif if a:findstart " Locate the start of the item, including "." let line = getline('.') let start = col('.') - 1 let lastword = -1 while start > 0 " if line[start - 1] =~ '\S' " let start -= 1 " elseif line[start - 1] =~ '\.' if line[start - 1] =~ '\k' let start -= 1 let lastword = a:findstart else break endif endwhile " Return the column of the last word, which is going to be changed. " Remember the text that comes before it in s:prepended. if lastword == -1 let s:prepended = '' return start endif let s:prepended = strpart(line, start, (col('.') - 1) - start) return start endif " let base = s:prepended . a:base let base = substitute(s:prepended, "'", "''", 'g') let filetype = substitute(&filetype, '\.', '_', 'g') let list_idx = index(s:cache_name, filetype, 0, &ignorecase) if list_idx > -1 let compl_list = s:cache_list[list_idx] else let compl_list = OmniSyntaxList() let s:cache_name = add( s:cache_name, filetype ) let s:cache_list = add( s:cache_list, compl_list ) endif " Return list of matches. if base != '' " let compstr = join(compl_list, ' ') " let expr = (l:omni_syntax_ignorecase==0?'\C':'').'\<\%('.base.'\)\@!\w\+\s*' " let compstr = substitute(compstr, expr, '', 'g') " let compl_list = split(compstr, '\s\+') " Filter the list based on the first few characters the user " entered let expr = 'v:val '.(l:omni_syntax_ignorecase==1?'=~?':'=~#')." '^".escape(base, '\\/.*$^~[]').".*'" let compl_list = filter(deepcopy(compl_list), expr) endif return compl_list endfunc function! syntaxcomplete#OmniSyntaxList(...) if a:0 > 0 let parms = [] if 3 == type(a:1) let parms = a:1 elseif 1 == type(a:1) let parms = split(a:1, ',') endif return OmniSyntaxList( parms ) else return OmniSyntaxList() endif endfunc function! syntaxcomplete#OmniSyntaxClearCache() let s:cache_name = [] let s:cache_list = [] endfunction " To retrieve all syntax items regardless of syntax group: " echo OmniSyntaxList( [] ) " " To retrieve only the syntax items for the sqlOperator syntax group: " echo OmniSyntaxList( ['sqlOperator'] ) " " To retrieve all syntax items for both the sqlOperator and sqlType groups: " echo OmniSyntaxList( ['sqlOperator', 'sqlType'] ) " " A regular expression can also be used: " echo OmniSyntaxList( ['sql\w\+'] ) " " From within a plugin, you would typically assign the output to a List: > " let myKeywords = [] " let myKeywords = OmniSyntaxList( ['sqlKeyword'] ) function! OmniSyntaxList(...) let list_parms = [] if a:0 > 0 if 3 == type(a:1) let list_parms = a:1 elseif 1 == type(a:1) let list_parms = split(a:1, ',') endif endif " Default to returning a dictionary, if use_dictionary is set to 0 " a list will be returned. " let use_dictionary = 1 " if a:0 > 0 && a:1 != '' " let use_dictionary = a:1 " endif let saveL = @l let filetype = substitute(&filetype, '\.', '_', 'g') if empty(list_parms) " Allow user to override per buffer if exists('g:omni_syntax_group_include_'.filetype) let l:omni_syntax_group_include_{filetype} = g:omni_syntax_group_include_{filetype} endif if exists('b:omni_syntax_group_include_'.filetype) let l:omni_syntax_group_include_{filetype} = b:omni_syntax_group_include_{filetype} endif " Default the include group to include the requested syntax group let syntax_group_include_{filetype} = '' " Check if there are any overrides specified for this filetype if exists('l:omni_syntax_group_include_'.filetype) let syntax_group_include_{filetype} = \ substitute( l:omni_syntax_group_include_{filetype},'\s\+','','g') let list_parms = split(l:omni_syntax_group_include_{filetype}, ',') if syntax_group_include_{filetype} =~ '\w' let syntax_group_include_{filetype} = \ substitute( syntax_group_include_{filetype}, \ '\s*,\s*', '\\|', 'g' \ ) endif endif else " A specific list was provided, use it endif " Loop through all the syntax groupnames, and build a " syntax file which contains these names. This can " work generically for any filetype that does not already " have a plugin defined. " This ASSUMES the syntax groupname BEGINS with the name " of the filetype. From my casual viewing of the vim7\syntax " directory this is true for almost all syntax definitions. " As an example, the SQL syntax groups have this pattern: " sqlType " sqlOperators " sqlKeyword ... if !empty(list_parms) && empty(substitute(join(list_parms), '[a-zA-Z ]', '', 'g')) " If list_parms only includes word characters, use it to limit " the syntax elements. " If using regex syntax list will fail to find those items, so " simply grab the who syntax list. redir @l silent! exec 'syntax list '.join(list_parms) redir END else redir @l silent! exec 'syntax list' redir END endif let syntax_full = "\n".@l let @l = saveL if syntax_full =~ 'E28' \ || syntax_full =~ 'E411' \ || syntax_full =~ 'E415' \ || syntax_full =~ 'No Syntax items' return [] endif let filetype = substitute(&filetype, '\.', '_', 'g') let list_exclude_groups = [] if a:0 > 0 " Do nothing since we have specific a specific list of groups else " Default the exclude group to nothing let syntax_group_exclude_{filetype} = '' " Allow user to override per buffer if exists('g:omni_syntax_group_exclude_'.filetype) let l:omni_syntax_group_exclude_{filetype} = g:omni_syntax_group_exclude_{filetype} endif if exists('b:omni_syntax_group_exclude_'.filetype) let l:omni_syntax_group_exclude_{filetype} = b:omni_syntax_group_exclude_{filetype} endif " Check if there are any overrides specified for this filetype if exists('l:omni_syntax_group_exclude_'.filetype) let syntax_group_exclude_{filetype} = \ substitute( l:omni_syntax_group_exclude_{filetype},'\s\+','','g') let list_exclude_groups = split(l:omni_syntax_group_exclude_{filetype}, ',') if syntax_group_exclude_{filetype} =~ '\w' let syntax_group_exclude_{filetype} = \ substitute( syntax_group_exclude_{filetype}, \ '\s*,\s*', '\\|', 'g' \ ) endif endif endif if empty(list_parms) let list_parms = [&filetype.'\w\+'] endif let syn_list = '' let index = 0 for group_regex in list_parms " Sometimes filetypes can be composite names, like c.doxygen " Loop through each individual part looking for the syntax " items specific to each individual filetype. " let ftindex = 0 " let ftindex = match(syntax_full, group_regex, ftindex) " while ftindex > -1 " let ft_part_name = matchstr( syntax_full, '\w\+', ftindex ) " Syntax rules can contain items for more than just the current " filetype. They can contain additional items added by the user " via autocmds or their vimrc. " Some syntax files can be combined (html, php, jsp). " We want only items that begin with the filetype we are interested in. let next_group_regex = '\n' . \ '\zs'.group_regex.'\ze'. \ '\s\+xxx\s\+' let index = match(syntax_full, next_group_regex, index) " For the matched group name, strip off any of the regex special " characters and see if we get a match with the current syntax if index == -1 && exists('b:current_syntax') && substitute(group_regex, '[^a-zA-Z ]\+.*', '', 'g') !~ '^'.b:current_syntax " There appears to be two standards when writing syntax files. " Either items begin as: " syn keyword {filetype}Keyword values ... " let b:current_syntax = "sql" " let b:current_syntax = "sqlanywhere" " Or " syn keyword {syntax_filename}Keyword values ... " let b:current_syntax = "mysql" " So, we will make the format of finding the syntax group names " a bit more flexible and look for both if the first fails to " find a match. let next_group_regex = '\n' . \ '\zs'.b:current_syntax.'\w\+\ze'. \ '\s\+xxx\s\+' let index = 0 let index = match(syntax_full, next_group_regex, index) endif while index > -1 let group_name = matchstr( syntax_full, '\w\+', index ) let get_syn_list = 1 for exclude_group_name in list_exclude_groups if '\<'.exclude_group_name.'\>' =~ '\<'.group_name.'\>' let get_syn_list = 0 endif endfor " This code is no longer needed in version 6.0 since we have " augmented the syntax list command to only retrieve the syntax " groups we are interested in. " " if get_syn_list == 1 " if syntax_group_include_{filetype} != '' " if '\<'.syntax_group_include_{filetype}.'\>' !~ '\<'.group_name.'\>' " let get_syn_list = 0 " endif " endif " endif if get_syn_list == 1 " Pass in the full syntax listing, plus the group name we " are interested in. let extra_syn_list = s:SyntaxCSyntaxGroupItems(group_name, syntax_full) let syn_list = syn_list . extra_syn_list . "\n" endif let index = index + strlen(group_name) let index = match(syntax_full, next_group_regex, index) endwhile " let ftindex = ftindex + len(ft_part_name) " let ftindex = match( syntax_full, group_regex, ftindex ) " endwhile endfor " " Sometimes filetypes can be composite names, like c.doxygen " " Loop through each individual part looking for the syntax " " items specific to each individual filetype. " let syn_list = '' " let ftindex = 0 " let ftindex = match(&filetype, '\w\+', ftindex) " while ftindex > -1 " let ft_part_name = matchstr( &filetype, '\w\+', ftindex ) " " Syntax rules can contain items for more than just the current " " filetype. They can contain additional items added by the user " " via autocmds or their vimrc. " " Some syntax files can be combined (html, php, jsp). " " We want only items that begin with the filetype we are interested in. " let next_group_regex = '\n' . " \ '\zs'.ft_part_name.'\w\+\ze'. " \ '\s\+xxx\s\+' " let index = 0 " let index = match(syntax_full, next_group_regex, index) " if index == -1 && exists('b:current_syntax') && ft_part_name != b:current_syntax " " There appears to be two standards when writing syntax files. " " Either items begin as: " " syn keyword {filetype}Keyword values ... " " let b:current_syntax = "sql" " " let b:current_syntax = "sqlanywhere" " " Or " " syn keyword {syntax_filename}Keyword values ... " " let b:current_syntax = "mysql" " " So, we will make the format of finding the syntax group names " " a bit more flexible and look for both if the first fails to " " find a match. " let next_group_regex = '\n' . " \ '\zs'.b:current_syntax.'\w\+\ze'. " \ '\s\+xxx\s\+' " let index = 0 " let index = match(syntax_full, next_group_regex, index) " endif " while index > -1 " let group_name = matchstr( syntax_full, '\w\+', index ) " let get_syn_list = 1 " for exclude_group_name in list_exclude_groups " if '\<'.exclude_group_name.'\>' =~ '\<'.group_name.'\>' " let get_syn_list = 0 " endif " endfor " " This code is no longer needed in version 6.0 since we have " " augmented the syntax list command to only retrieve the syntax " " groups we are interested in. " " " " if get_syn_list == 1 " " if syntax_group_include_{filetype} != '' " " if '\<'.syntax_group_include_{filetype}.'\>' !~ '\<'.group_name.'\>' " " let get_syn_list = 0 " " endif " " endif " " endif " if get_syn_list == 1 " " Pass in the full syntax listing, plus the group name we " " are interested in. " let extra_syn_list = s:SyntaxCSyntaxGroupItems(group_name, syntax_full) " let syn_list = syn_list . extra_syn_list . "\n" " endif " let index = index + strlen(group_name) " let index = match(syntax_full, next_group_regex, index) " endwhile " let ftindex = ftindex + len(ft_part_name) " let ftindex = match( &filetype, '\w\+', ftindex ) " endwhile " Convert the string to a List and sort it. let compl_list = sort(split(syn_list)) if &filetype == 'vim' let short_compl_list = [] for i in range(len(compl_list)) if i == len(compl_list)-1 let next = i else let next = i + 1 endif if compl_list[next] !~ '^'.compl_list[i].'.$' let short_compl_list += [compl_list[i]] endif endfor return short_compl_list else return compl_list endif endfunction function! s:SyntaxCSyntaxGroupItems( group_name, syntax_full ) " Allow user to override iskeyword per buffer let l:omni_syntax_use_iskeyword = g:omni_syntax_use_iskeyword if exists('b:omni_syntax_use_iskeyword') let l:omni_syntax_use_iskeyword = b:omni_syntax_use_iskeyword endif " Allow user to override iskeyword_numeric per buffer let l:omni_syntax_use_iskeyword_numeric = g:omni_syntax_use_iskeyword_numeric if exists('b:omni_syntax_use_iskeyword_numeric') let l:omni_syntax_use_iskeyword_numeric = b:omni_syntax_use_iskeyword_numeric endif " Allow user to override iskeyword_numeric per buffer let l:omni_syntax_use_single_byte = g:omni_syntax_use_single_byte if exists('b:omni_syntax_use_single_byte') let l:omni_syntax_use_single_byte = b:omni_syntax_use_single_byte endif " Allow user to override minimum_length per buffer let l:omni_syntax_minimum_length = g:omni_syntax_minimum_length if exists('b:omni_syntax_minimum_length') let l:omni_syntax_minimum_length = b:omni_syntax_minimum_length endif let syn_list = "" " From the full syntax listing, strip out the portion for the " request group. " Query: " \n - must begin with a newline " a:group_name - the group name we are interested in " \s\+xxx\s\+ - group names are always followed by xxx " \zs - start the match " .\{-} - everything ... " \ze - end the match " $ - start a group or 2 potential matches " \n\w - at the first newline starting with a character " \| - 2nd potential match " \%$ - matches end of the file or string " $ - end a group let syntax_group = matchstr(a:syntax_full, \ "\n".a:group_name.'\s\+xxx\s\+\zs.\{-}\ze$\n\w\|\%$$' \ ) if syntax_group != "" " let syn_list = substitute( @l, '^.*xxx\s*\%(contained\s*\)\?', "", '' ) " let syn_list = substitute( @l, '^.*xxx\s*', "", '' ) " We only want the words for the lines beginning with " containedin, but there could be other items. " Tried to remove all lines that do not begin with contained " but this does not work in all cases since you can have " contained nextgroup=... " So this will strip off the ending of lines with known " keywords. let syn_list = substitute( \ syntax_group, '\<$'. \ substitute( \ escape(s:syn_remove_words, '\\/.*$^~[]') \ , ',', '\\|', 'g' \ ). \ '$.\{-}\%($\|'."\n".'\)' \ , "\n", 'g' \ ) " Attempt to deal with lines using the match syntax " javaScriptDocTags xxx match /@$param\|argument\|requires\|file$\>/ " Though it can use any types of regex, so this plugin will attempt " to restrict it " 1. Only use $ or \%( constructs remove all else " 2 Remove and []s " 3. Account for match //constructs " \%(\%(ms\|me\|hs\|he\|rs\|re\|lc$\S\+\)\? " 4. Hope for the best " " let syn_list_old = syn_list while syn_list =~ '\<match\>\s\+\/' if syn_list =~ 'perlElseIfError' let syn_list = syn_list endif " Check if the match has words at least 3 characters long if syn_list =~ '\<match \/\zs.\{-}\<\w\{3,}\>.\{-}\ze\\\@<!\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+' " Remove everything after / and before the first $ let syn_list = substitute( syn_list, '\<match \/\zs.\{-}\ze\\%\?(.\{-}\\\@<!\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc$\S\+\)\?\s\+', '', 'g' ) " Remove everything after \) and up to the ending / let syn_list = substitute( syn_list, '\<match \/.\{-}\\)\zs.\{-}\ze\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+', '', 'g' ) " Remove any character classes " let syn_list = substitute( syn_list, '\<match /\zs.\{-}\[[^]]*\].\{-}\ze\/ ', '', 'g' ) let syn_list = substitute( syn_list, '\%(\<match \/[^/]\{-}\)\@<=\[[^]]*\]\ze.\{-}\\\@<!\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?', '', 'g' ) " Remove any words < 3 characters let syn_list = substitute( syn_list, '\%(\<match \/[^/]\{-}\)\@<=\<\w\{1,2}\>\ze.\{-}\\\@<!\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+', '', 'g' ) " Remove all non-word characters " let syn_list = substitute( syn_list, '\<match /\zs.\{-}\<\W\+\>.\{-}\ze\/ ', "", 'g' ) " let syn_list = substitute( syn_list, '\%(\<match \/[^/]\{-}\)\@<=\W\+\ze.\{-}\/ ', ' ', 'g' ) " Do this by using the outer substitute() call to gather all " text between the match /.../ tags. " The inner substitute() call operates on the text selected " and replaces all non-word characters. let syn_list = substitute( syn_list, '\<match \/\zs$.\{-}$\ze\\\@<!\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+' \ , '\=substitute(submatch(1), "\\W\\+", " ", "g")' \ , 'g' ) " Remove the match / / syntax let syn_list = substitute( syn_list, '\<match \/$.\{-}$\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+', '\1', 'g' ) else " No words long enough, remove the match " Remove the match syntax " let syn_list = substitute( syn_list, '\<match \/[^\/]*\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+', '', 'g' ) let syn_list = substitute( syn_list, '\<match \/\%(.\{-}\)\?\/\%(\%(ms\|me\|hs\|he\|rs\|re\|lc\)\S\+\)\?\s\+', '', 'g' ) endif if syn_list =~ '\<match\>\s\+\/' " Problem removing the match / / tags let syn_list = '' endif endwhile " Now strip off the newline + blank space + contained. " Also include lines with nextgroup=@someName skip_key_words syntax_element " \ syn_list, '\%(^\|\n\)\@<=\s*\<$contained\|nextgroup=$' " \ syn_list, '\%(^\|\n\)\@<=\s*\<$contained\|nextgroup=[@a-zA-Z,]*$' let syn_list = substitute( \ syn_list, '\<$contained\|nextgroup=[@a-zA-Z,]*$' \ , "", 'g' \ ) " This can leave lines like this " =@vimMenuList skipwhite onoremenu " Strip the special option keywords first " :h :syn-skipwhite* let syn_list = substitute( \ syn_list, '\<$skipwhite\|skipnl\|skipempty$\>' \ , "", 'g' \ ) " Now remove the remainder of the nextgroup=@someName lines let syn_list = substitute( \ syn_list, '\%(^\|\n\)\@<=\s*$@\w\+$' \ , "", 'g' \ ) if l:omni_syntax_use_iskeyword == 0 " There are a number of items which have non-word characters in " them, *'T_F1'*. vim.vim is one such file. " This will replace non-word characters with spaces. " setlocal filetype=forth " let g:omni_syntax_use_iskeyword = 1 " let g:omni_syntax_use_iskeyword_numeric = 1 " You will see entries like " #>> " (.local) " These were found doing a grep in vim82\syntax " grep iskeyword * " forth.vim:setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255 let syn_list = substitute( syn_list, '[^0-9A-Za-z_ ]', ' ', 'g' ) else if l:omni_syntax_use_iskeyword_numeric == 1 " iskeyword can contain value like this " 38,42,43,45,47-58,60-62,64-90,97-122,_,+,-,*,/,%,<,=,>,:,$,?,!,@-@,94 " Numeric values convert to their ASCII equivalent using the " nr2char() function. " & 38 " * 42 " + 43 " - 45 " ^ 94 " Iterate through all numeric specifications and convert those " to their ascii equivalent ensuring the character is printable. " If so, add it to the list. let accepted_chars = '' for item in split(&iskeyword, ',') if item =~ '\d-\d' " This is a character range (ie 47-58), " cycle through each character within the range let [b:start, b:end] = split(item, '-') for range_item in range( b:start, b:end ) if range_item <= 127 || l:omni_syntax_use_single_byte == 0 if nr2char(range_item) =~ '\p' let accepted_chars = accepted_chars . nr2char(range_item) endif endif endfor elseif item =~ '^\d\+$' " Only numeric, translate to a character if item < 127 || l:omni_syntax_use_single_byte == 0 if nr2char(item) =~ '\p' let accepted_chars = accepted_chars . nr2char(item) endif endif else if char2nr(item) < 127 || l:omni_syntax_use_single_byte == 0 if item =~ '\p' let accepted_chars = accepted_chars . item endif endif endif endfor " Escape special regex characters " Looks like the wrong chars are escaped. In a collection, " :h /[] " only `]', `\', `-' and `^' are special: " let accepted_chars = escape(accepted_chars, '\\/.*$^~[]' ) let accepted_chars = escape(accepted_chars, ']\-^' ) " Remove all characters that are not acceptable let syn_list = substitute( syn_list, '[^A-Za-z'.accepted_chars.']', ' ', 'g' ) else let accept_chars = ','.&iskeyword.',' " Remove all character ranges " let accept_chars = substitute(accept_chars, ',[^,]\+-[^,]\+,', ',', 'g') let accept_chars = substitute(accept_chars, ',\@<=[^,]\+-[^,]\+,', '', 'g') " Remove all numeric specifications " let accept_chars = substitute(accept_chars, ',\d\{-},', ',', 'g') let accept_chars = substitute(accept_chars, ',\@<=\d\{-},', '', 'g') " Remove all commas let accept_chars = substitute(accept_chars, ',', '', 'g') " Escape special regex characters " Looks like the wrong chars are escaped. In a collection, " :h /[] " only `]', `\', `-' and `^' are special: " let accept_chars = escape(accept_chars, '\\/.*$^~[]' ) let accept_chars = escape(accept_chars, ']\-^' ) " Remove all characters that are not acceptable let syn_list = substitute( syn_list, '[^0-9A-Za-z_'.accept_chars.']', ' ', 'g' ) endif endif if l:omni_syntax_minimum_length > 0 " If the user specified a minimum length, enforce it let syn_list = substitute(' '.syn_list.' ', ' \S\{,'.l:omni_syntax_minimum_length.'}\ze ', ' ', 'g') endif else let syn_list = '' endif return syn_list endfunction function! OmniSyntaxShowChars(spec) let result = [] for item in split(a:spec, ',') if len(item) > 1 if item == '@-@' call add(result, char2nr(item)) else call extend(result, call('range', split(item, '-'))) endif else if item == '@' " assume this is [A-Za-z] for [c1, c2] in [['A', 'Z'], ['a', 'z']] call extend(result, range(char2nr(c1), char2nr(c2))) endfor else call add(result, char2nr(item)) endif endif endfor return join(map(result, 'nr2char(v:val)'), ', ') endfunction let &cpo = s:cpo_save unlet s:cpo_save