170 lines
5.2 KiB
VimL
170 lines
5.2 KiB
VimL
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" A simple syntax highlighting, simply alternate colors between two
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" adjacent columns
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" Init {{{2
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let s:cpo_save = &cpo
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set cpo&vim
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scriptencoding utf8
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if version < 600
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syn clear
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elseif exists("b:current_syntax")
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finish
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endif
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" Helper functions "{{{2
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fu! <sid>Warning(msg) "{{{3
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" Don't redraw, so we are not overwriting messages from the ftplugin
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" script
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"redraw!
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echohl WarningMsg
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echomsg "CSV Syntax:" . a:msg
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echohl Normal
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endfu
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fu! <sid>Esc(val, char) "{{2
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return '\V'.escape(a:val, '\\'.a:char).'\m'
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endfu
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fu! <sid>CheckSaneSearchPattern() "{{{3
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let s:del_def = ','
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let s:col_def = '\%([^' . s:del_def . ']*' . s:del_def . '\|$\)'
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let s:col_def_end = '\%([^' . s:del_def . ']*' . s:del_def . '\)'
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" First:
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" Check for filetype plugin. This syntax script relies on the filetype
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" plugin, else, it won't work properly.
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redir => s:a |sil filetype | redir end
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let s:a=split(s:a, "\n")[0]
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if match(s:a, '\cplugin:off') > 0
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call <sid>Warning("No filetype support, only simple highlighting using"
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\ . s:del_def . " as delimiter! See :h csv-installation")
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endif
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" Check Comment setting
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if !exists("g:csv_comment")
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let b:csv_cmt = split(&cms, '%s')
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else
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let b:csv_cmt = split(g:csv_comment, '%s')
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endif
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" Second: Check for sane defaults for the column pattern
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" Not necessary to check for fixed width columns
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if exists("b:csv_fixed_width_cols")
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return
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endif
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" Try a simple highlighting, if the defaults from the ftplugin
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" don't exist
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let s:col = exists("b:col") && !empty(b:col) ? b:col
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\ : s:col_def
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let s:col_end = exists("b:col_end") && !empty(b:col_end) ? b:col_end
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\ : s:col_def_end
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let s:del = exists("b:delimiter") && !empty(b:delimiter) ? b:delimiter
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\ : s:del_def
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let s:cmts = exists("b:csv_cmt") ? b:csv_cmt[0] : split(&cms, '&s')[0]
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let s:cmte = exists("b:csv_cmt") && len(b:csv_cmt) == 2 ? b:csv_cmt[1]
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\ : ''
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if line('$') > 1 && (!exists("b:col") || empty(b:col))
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" check for invalid pattern, ftplugin hasn't been loaded yet
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call <sid>Warning("Invalid column pattern, using default pattern " . s:col_def)
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endif
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endfu
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" Syntax rules {{{2
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fu! <sid>DoHighlight() "{{{3
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if has("conceal") && !exists("g:csv_no_conceal") &&
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\ !exists("b:csv_fixed_width_cols")
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" old val
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"\ '\%(.\)\@=/ms=e,me=e contained conceal cchar=' .
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" Has a problem with the last line!
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exe "syn match CSVDelimiter /" . s:col_end .
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\ '/ms=e,me=e contained conceal cchar=' .
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\ (&enc == "utf-8" ? "│" : '|')
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"exe "syn match CSVDelimiterEOL /" . s:del .
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" \ '\?$/ contained conceal cchar=' .
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" \ (&enc == "utf-8" ? "│" : '|')
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hi def link CSVDelimiter Conceal
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elseif !exists("b:csv_fixed_width_cols")
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" The \%(.\)\@<= makes sure, the last char won't be concealed,
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" if it isn't a delimiter
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"exe "syn match CSVDelimiter /" . s:col . '\%(.\)\@<=/ms=e,me=e contained'
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exe "syn match CSVDelimiter /" . s:col_end . '/ms=e,me=e contained'
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"exe "syn match CSVDelimiterEOL /" . s:del . '\?$/ contained'
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if has("conceal")
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hi def link CSVDelimiter Conceal
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else
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hi def link CSVDelimiter Ignore
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endif
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endif " There is no delimiter for csv fixed width columns
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if !exists("b:csv_fixed_width_cols")
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exe 'syn match CSVColumnEven nextgroup=CSVColumnOdd /'
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\ . s:col . '/ contains=CSVDelimiter'
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exe 'syn match CSVColumnOdd nextgroup=CSVColumnEven /'
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\ . s:col . '/ contains=CSVDelimiter'
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exe 'syn match CSVColumnHeaderEven nextgroup=CSVColumnHeaderOdd /\%<'. (get(b:, 'csv_headerline', 1)+1).'l'
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\. s:col . '/ contains=CSVDelimiter'
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exe 'syn match CSVColumnHeaderOdd nextgroup=CSVColumnHeaderEven /\%<'. (get(b:, 'csv_headerline', 1)+1).'l'
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\. s:col . '/ contains=CSVDelimiter'
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else
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for i in range(len(b:csv_fixed_width_cols))
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let pat = '/\%' . b:csv_fixed_width_cols[i] . 'v.*' .
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\ ((i == len(b:csv_fixed_width_cols)-1) ? '/' :
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\ '\%' . b:csv_fixed_width_cols[i+1] . 'v/')
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let group = "CSVColumn" . (i%2 ? "Odd" : "Even" )
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let ngroup = "CSVColumn" . (i%2 ? "Even" : "Odd" )
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exe "syn match " group pat " nextgroup=" . ngroup
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endfor
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endif
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" Comment regions
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exe 'syn match CSVComment /'. <sid>Esc(s:cmts, '/'). '.*'.
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\ (!empty(s:cmte) ? '\%('. <sid>Esc(s:cmte, '/'). '\)\?'
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\: ''). '/'
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hi def link CSVComment Comment
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endfun
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fu! <sid>HiLink(name, target) "{{{3
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if !hlexists(a:name)
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exe "hi def link" a:name a:target
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endif
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endfu
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fu! <sid>DoSyntaxDefinitions() "{{{3
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syn spell toplevel
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" Not really needed
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syn case ignore
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call <sid>HiLink("CSVColumnHeaderOdd", "WarningMsg")
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call <sid>HiLink("CSVColumnHeaderEven", "WarningMsg")
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if get(g:, 'csv_no_column_highlight', 0)
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call <sid>HiLink("CSVColumnOdd", "Normal")
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call <sid>HiLink("CSVColumnEven", "Normal")
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else
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call <sid>HiLink("CSVColumnOdd", "DiffAdd")
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call <sid>HiLink("CSVColumnEven","DiffChange")
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endif
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endfun
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" Main: {{{2
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" Make sure, we are using a sane, valid pattern for syntax
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" highlighting
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call <sid>CheckSaneSearchPattern()
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" Define all necessary syntax groups
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call <sid>DoSyntaxDefinitions()
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" Highlight the file
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call <sid>DoHighlight()
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" Set the syntax variable {{{2
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let b:current_syntax="csv"
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let &cpo = s:cpo_save
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unlet s:cpo_save
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