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nerdcommenter/plugin/NERD_commenter.vim
Martin Grenfell 94cce2cc54 make NERDRemoveExtraSpaces default to 0 
this was causing problems with people who were using left aligned
comments without NERDSpaceDelims set as it was incorrectly stripping out
extra spaces
2011-02-22 11:28:35 +13:00

2815 lines
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" ============================================================================
" File: NERD_commenter.vim
" Description: vim global plugin that provides easy code commenting
" Maintainer: Martin Grenfell <martin.grenfell at gmail dot com>
" Version: 2.3.0
" Last Change: 08th December, 2010
" License: This program is free software. It comes without any warranty,
" to the extent permitted by applicable law. You can redistribute
" it and/or modify it under the terms of the Do What The Fuck You
" Want To Public License, Version 2, as published by Sam Hocevar.
" See http://sam.zoy.org/wtfpl/COPYING for more details.
"
" ============================================================================
" Section: script init stuff {{{1
if exists("loaded_nerd_comments")
finish
endif
if v:version < 700
echoerr "NERDCommenter: this plugin requires vim >= 7. DOWNLOAD IT! You'll thank me later!"
finish
endif
let loaded_nerd_comments = 1
" Function: s:InitVariable() function {{{2
" This function is used to initialise a given variable to a given value. The
" variable is only initialised if it does not exist prior
"
" Args:
" -var: the name of the var to be initialised
" -value: the value to initialise var to
"
" Returns:
" 1 if the var is set, 0 otherwise
function s:InitVariable(var, value)
if !exists(a:var)
exec 'let ' . a:var . ' = ' . "'" . a:value . "'"
return 1
endif
return 0
endfunction
" Section: space string init{{{2
" When putting spaces after the left delim and before the right we use
" s:spaceStr for the space char. This way we can make it add anything after
" the left and before the right by modifying this variable
let s:spaceStr = ' '
let s:lenSpaceStr = strlen(s:spaceStr)
" Section: variable initialization {{{2
call s:InitVariable("g:NERDAllowAnyVisualDelims", 1)
call s:InitVariable("g:NERDBlockComIgnoreEmpty", 0)
call s:InitVariable("g:NERDCommentWholeLinesInVMode", 0)
call s:InitVariable("g:NERDCompactSexyComs", 0)
call s:InitVariable("g:NERDCreateDefaultMappings", 1)
call s:InitVariable("g:NERDDefaultNesting", 1)
call s:InitVariable("g:NERDMenuMode", 3)
call s:InitVariable("g:NERDLPlace", "[>")
call s:InitVariable("g:NERDUsePlaceHolders", 1)
call s:InitVariable("g:NERDRemoveAltComs", 1)
call s:InitVariable("g:NERDRemoveExtraSpaces", 0)
call s:InitVariable("g:NERDRPlace", "<]")
call s:InitVariable("g:NERDSpaceDelims", 0)
if !exists("g:NERDCustomDelimiters")
let g:NERDCustomDelimiters = {}
endif
let s:NERDFileNameEscape="[]#*$%'\" ?`!&();<>\\"
let s:delimiterMap = {
\ 'aap': { 'left': '#' },
\ 'abc': { 'left': '%' },
\ 'acedb': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'actionscript': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'ada': { 'left': '--', 'leftAlt': '-- ' },
\ 'ahdl': { 'left': '--' },
\ 'ahk': { 'left': ';', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'amiga': { 'left': ';' },
\ 'aml': { 'left': '/*' },
\ 'ampl': { 'left': '#' },
\ 'apache': { 'left': '#' },
\ 'apachestyle': { 'left': '#' },
\ 'asciidoc': { 'left': '//' },
\ 'applescript': { 'left': '--', 'leftAlt': '(*', 'rightAlt': '*)' },
\ 'asm68k': { 'left': ';' },
\ 'asm': { 'left': ';', 'leftAlt': '#' },
\ 'asn': { 'left': '--' },
\ 'aspvbs': { 'left': '''' },
\ 'asterisk': { 'left': ';' },
\ 'asy': { 'left': '//' },
\ 'atlas': { 'left': 'C', 'right': '$' },
\ 'autohotkey': { 'left': ';' },
\ 'autoit': { 'left': ';' },
\ 'ave': { 'left': "'" },
\ 'awk': { 'left': '#' },
\ 'basic': { 'left': "'", 'leftAlt': 'REM ' },
\ 'bbx': { 'left': '%' },
\ 'bc': { 'left': '#' },
\ 'bib': { 'left': '%' },
\ 'bindzone': { 'left': ';' },
\ 'bst': { 'left': '%' },
\ 'btm': { 'left': '::' },
\ 'caos': { 'left': '*' },
\ 'calibre': { 'left': '//' },
\ 'catalog': { 'left': '--', 'right': '--' },
\ 'c': { 'left': '/*','right': '*/', 'leftAlt': '//' },
\ 'cfg': { 'left': '#' },
\ 'cg': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'ch': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'cl': { 'left': '#' },
\ 'clean': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'clipper': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'clojure': { 'left': ';' },
\ 'cmake': { 'left': '#' },
\ 'conkyrc': { 'left': '#' },
\ 'cpp': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'crontab': { 'left': '#' },
\ 'cs': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'csp': { 'left': '--' },
\ 'cterm': { 'left': '*' },
\ 'cucumber': { 'left': '#' },
\ 'cvs': { 'left': 'CVS:' },
\ 'd': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'dcl': { 'left': '$!' },
\ 'dakota': { 'left': '#' },
\ 'debcontrol': { 'left': '#' },
\ 'debsources': { 'left': '#' },
\ 'def': { 'left': ';' },
\ 'desktop': { 'left': '#' },
\ 'dhcpd': { 'left': '#' },
\ 'diff': { 'left': '#' },
\ 'django': { 'left': '<!--','right': '-->', 'leftAlt': '{#', 'rightAlt': '#}' },
\ 'docbk': { 'left': '<!--', 'right': '-->' },
\ 'dns': { 'left': ';' },
\ 'dosbatch': { 'left': 'REM ', 'leftAlt': '::' },
\ 'dosini': { 'left': ';' },
\ 'dot': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'dracula': { 'left': ';' },
\ 'dsl': { 'left': ';' },
\ 'dtml': { 'left': '<dtml-comment>', 'right': '</dtml-comment>' },
\ 'dylan': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'ebuild': { 'left': '#' },
\ 'ecd': { 'left': '#' },
\ 'eclass': { 'left': '#' },
\ 'eiffel': { 'left': '--' },
\ 'elf': { 'left': "'" },
\ 'elmfilt': { 'left': '#' },
\ 'erlang': { 'left': '%', 'leftAlt': '%%' },
\ 'eruby': { 'left': '<%#', 'right': '%>', 'leftAlt': '<!--', 'rightAlt': '-->' },
\ 'expect': { 'left': '#' },
\ 'exports': { 'left': '#' },
\ 'factor': { 'left': '! ', 'leftAlt': '!# ' },
\ 'fgl': { 'left': '#' },
\ 'focexec': { 'left': '-*' },
\ 'form': { 'left': '*' },
\ 'foxpro': { 'left': '*' },
\ 'fstab': { 'left': '#' },
\ 'fvwm': { 'left': '#' },
\ 'fx': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'gams': { 'left': '*' },
\ 'gdb': { 'left': '#' },
\ 'gdmo': { 'left': '--' },
\ 'geek': { 'left': 'GEEK_COMMENT:' },
\ 'genshi': { 'left': '<!--','right': '-->', 'leftAlt': '{#', 'rightAlt': '#}' },
\ 'gentoo-conf-d': { 'left': '#' },
\ 'gentoo-env-d': { 'left': '#' },
\ 'gentoo-init-d': { 'left': '#' },
\ 'gentoo-make-conf': { 'left': '#' },
\ 'gentoo-package-keywords': { 'left': '#' },
\ 'gentoo-package-mask': { 'left': '#' },
\ 'gentoo-package-use': { 'left': '#' },
\ 'gitcommit': { 'left': '#' },
\ 'gitconfig': { 'left': ';' },
\ 'gitrebase': { 'left': '#' },
\ 'gnuplot': { 'left': '#' },
\ 'groovy': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'gsp': { 'left': '<%--', 'right': '--%>', 'leftAlt': '<!--','rightAlt': '-->'},
\ 'gtkrc': { 'left': '#' },
\ 'haskell': { 'left': '{-','right': '-}', 'leftAlt': '--' },
\ 'hb': { 'left': '#' },
\ 'h': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'haml': { 'left': '-#', 'leftAlt': '/' },
\ 'hercules': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'hog': { 'left': '#' },
\ 'hostsaccess': { 'left': '#' },
\ 'htmlcheetah': { 'left': '##' },
\ 'htmldjango': { 'left': '<!--','right': '-->', 'leftAlt': '{#', 'rightAlt': '#}' },
\ 'htmlos': { 'left': '#', 'right': '/#' },
\ 'ia64': { 'left': '#' },
\ 'icon': { 'left': '#' },
\ 'idlang': { 'left': ';' },
\ 'idl': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'inform': { 'left': '!' },
\ 'inittab': { 'left': '#' },
\ 'ishd': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'iss': { 'left': ';' },
\ 'ist': { 'left': '%' },
\ 'java': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'javacc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'javascript': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'javascript.jquery': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'jess': { 'left': ';' },
\ 'jgraph': { 'left': '(*', 'right': '*)' },
\ 'jproperties': { 'left': '#' },
\ 'jsp': { 'left': '<%--', 'right': '--%>' },
\ 'kix': { 'left': ';' },
\ 'kscript': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'lace': { 'left': '--' },
\ 'ldif': { 'left': '#' },
\ 'less': { 'left': '/*','right': '*/' },
\ 'lilo': { 'left': '#' },
\ 'lilypond': { 'left': '%' },
\ 'liquid': { 'left': '{% comment %}', 'right': '{% endcomment %}' },
\ 'lisp': { 'left': ';', 'leftAlt': '#|', 'rightAlt': '|#' },
\ 'llvm': { 'left': ';' },
\ 'lotos': { 'left': '(*', 'right': '*)' },
\ 'lout': { 'left': '#' },
\ 'lprolog': { 'left': '%' },
\ 'lscript': { 'left': "'" },
\ 'lss': { 'left': '#' },
\ 'lua': { 'left': '--', 'leftAlt': '--[[', 'rightAlt': ']]' },
\ 'lynx': { 'left': '#' },
\ 'lytex': { 'left': '%' },
\ 'mail': { 'left': '> ' },
\ 'mako': { 'left': '##' },
\ 'man': { 'left': '."' },
\ 'map': { 'left': '%' },
\ 'maple': { 'left': '#' },
\ 'markdown': { 'left': '<!--', 'right': '-->' },
\ 'masm': { 'left': ';' },
\ 'mason': { 'left': '<% #', 'right': '%>' },
\ 'master': { 'left': '$' },
\ 'matlab': { 'left': '%' },
\ 'mel': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'mib': { 'left': '--' },
\ 'mkd': { 'left': '>' },
\ 'mma': { 'left': '(*', 'right': '*)' },
\ 'model': { 'left': '$', 'right': '$' },
\ 'moduala.': { 'left': '(*', 'right': '*)' },
\ 'modula2': { 'left': '(*', 'right': '*)' },
\ 'modula3': { 'left': '(*', 'right': '*)' },
\ 'monk': { 'left': ';' },
\ 'mush': { 'left': '#' },
\ 'named': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'nasm': { 'left': ';' },
\ 'nastran': { 'left': '$' },
\ 'natural': { 'left': '/*' },
\ 'ncf': { 'left': ';' },
\ 'newlisp': { 'left': ';' },
\ 'nroff': { 'left': '\"' },
\ 'nsis': { 'left': '#' },
\ 'ntp': { 'left': '#' },
\ 'objc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'objcpp': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'objj': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'ocaml': { 'left': '(*', 'right': '*)' },
\ 'occam': { 'left': '--' },
\ 'omlet': { 'left': '(*', 'right': '*)' },
\ 'omnimark': { 'left': ';' },
\ 'openroad': { 'left': '//' },
\ 'opl': { 'left': "REM" },
\ 'ora': { 'left': '#' },
\ 'ox': { 'left': '//' },
\ 'pascal': { 'left': '{','right': '}', 'leftAlt': '(*', 'rightAlt': '*)' },
\ 'patran': { 'left': '$', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'pcap': { 'left': '#' },
\ 'pccts': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'pdf': { 'left': '%' },
\ 'pfmain': { 'left': '//' },
\ 'php': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'pic': { 'left': ';' },
\ 'pike': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'pilrc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'pine': { 'left': '#' },
\ 'plm': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'plsql': { 'left': '--', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'po': { 'left': '#' },
\ 'postscr': { 'left': '%' },
\ 'pov': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'povini': { 'left': ';' },
\ 'ppd': { 'left': '%' },
\ 'ppwiz': { 'left': ';;' },
\ 'processing': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'prolog': { 'left': '%', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'ps1': { 'left': '#' },
\ 'psf': { 'left': '#' },
\ 'ptcap': { 'left': '#' },
\ 'python': { 'left': '#' },
\ 'radiance': { 'left': '#' },
\ 'ratpoison': { 'left': '#' },
\ 'r': { 'left': '#' },
\ 'rc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'rebol': { 'left': ';' },
\ 'registry': { 'left': ';' },
\ 'remind': { 'left': '#' },
\ 'resolv': { 'left': '#' },
\ 'rgb': { 'left': '!' },
\ 'rib': { 'left': '#' },
\ 'robots': { 'left': '#' },
\ 'sa': { 'left': '--' },
\ 'samba': { 'left': ';', 'leftAlt': '#' },
\ 'sass': { 'left': '//', 'leftAlt': '/*' },
\ 'sather': { 'left': '--' },
\ 'scala': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'scheme': { 'left': ';', 'leftAlt': '#|', 'rightAlt': '|#' },
\ 'scilab': { 'left': '//' },
\ 'scsh': { 'left': ';' },
\ 'scss': { 'left': '/*','right': '*/' },
\ 'sed': { 'left': '#' },
\ 'sgmldecl': { 'left': '--', 'right': '--' },
\ 'sgmllnx': { 'left': '<!--', 'right': '-->' },
\ 'sicad': { 'left': '*' },
\ 'simula': { 'left': '%', 'leftAlt': '--' },
\ 'sinda': { 'left': '$' },
\ 'skill': { 'left': ';' },
\ 'slang': { 'left': '%' },
\ 'slice': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'slrnrc': { 'left': '%' },
\ 'sm': { 'left': '#' },
\ 'smarty': { 'left': '{*', 'right': '*}' },
\ 'smil': { 'left': '<!', 'right': '>' },
\ 'smith': { 'left': ';' },
\ 'sml': { 'left': '(*', 'right': '*)' },
\ 'snnsnet': { 'left': '#' },
\ 'snnspat': { 'left': '#' },
\ 'snnsres': { 'left': '#' },
\ 'snobol4': { 'left': '*' },
\ 'spec': { 'left': '#' },
\ 'specman': { 'left': '//' },
\ 'spectre': { 'left': '//', 'leftAlt': '*' },
\ 'spice': { 'left': '$' },
\ 'sql': { 'left': '--' },
\ 'sqlforms': { 'left': '--' },
\ 'sqlj': { 'left': '--' },
\ 'sqr': { 'left': '!' },
\ 'squid': { 'left': '#' },
\ 'st': { 'left': '"' },
\ 'stp': { 'left': '--' },
\ 'systemverilog': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'tads': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'tags': { 'left': ';' },
\ 'tak': { 'left': '$' },
\ 'tasm': { 'left': ';' },
\ 'tcl': { 'left': '#' },
\ 'texinfo': { 'left': "@c " },
\ 'texmf': { 'left': '%' },
\ 'tf': { 'left': ';' },
\ 'tidy': { 'left': '#' },
\ 'tli': { 'left': '#' },
\ 'tmux': { 'left': '#' },
\ 'trasys': { 'left': "$" },
\ 'tsalt': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'tsscl': { 'left': '#' },
\ 'tssgm': { 'left': "comment = '", 'right': "'" },
\ 'txt2tags': { 'left': '%' },
\ 'uc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'uil': { 'left': '!' },
\ 'vb': { 'left': "'" },
\ 'velocity': { 'left': "##", 'right': "", 'leftAlt': '#*', 'rightAlt': '*#' },
\ 'vera': { 'left': '/*','right': '*/', 'leftAlt': '//' },
\ 'verilog': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'verilog_systemverilog': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
\ 'vgrindefs': { 'left': '#' },
\ 'vhdl': { 'left': '--' },
\ 'vimperator': { 'left': '"' },
\ 'virata': { 'left': '%' },
\ 'vrml': { 'left': '#' },
\ 'vsejcl': { 'left': '/*' },
\ 'webmacro': { 'left': '##' },
\ 'wget': { 'left': '#' },
\ 'Wikipedia': { 'left': '<!--', 'right': '-->' },
\ 'winbatch': { 'left': ';' },
\ 'wml': { 'left': '#' },
\ 'wvdial': { 'left': ';' },
\ 'xdefaults': { 'left': '!' },
\ 'xkb': { 'left': '//' },
\ 'xmath': { 'left': '#' },
\ 'xpm2': { 'left': '!' },
\ 'xquery': { 'left': '(:', 'right': ':)' },
\ 'z8a': { 'left': ';' }
\ }
"merge in the custom delimiters
for ft in keys(g:NERDCustomDelimiters)
let s:delimiterMap[ft] = g:NERDCustomDelimiters[ft]
endfor
" Section: Comment mapping functions, autocommands and commands {{{1
" ============================================================================
" Section: Comment enabler autocommands {{{2
" ============================================================================
augroup NERDCommenter
"if the user enters a buffer or reads a buffer then we gotta set up
"the comment delimiters for that new filetype
autocmd BufEnter,BufRead * :call s:SetUpForNewFiletype(&filetype, 0)
"if the filetype of a buffer changes, force the script to reset the
"delims for the buffer
autocmd Filetype * :call s:SetUpForNewFiletype(&filetype, 1)
augroup END
" Function: s:SetUpForNewFiletype(filetype) function {{{2
" This function is responsible for setting up buffer scoped variables for the
" given filetype.
"
" Args:
" -filetype: the filetype to set delimiters for
" -forceReset: 1 if the delimiters should be reset if they have already be
" set for this buffer.
"
function s:SetUpForNewFiletype(filetype, forceReset)
let ft = a:filetype
"for compound filetypes, if we dont know how to handle the full filetype
"then break it down and use the first part that we know how to handle
if ft =~ '\.' && !has_key(s:delimiterMap, ft)
let filetypes = split(a:filetype, '\.')
for i in filetypes
if has_key(s:delimiterMap, i)
let ft = i
break
endif
endfor
endif
let b:NERDSexyComMarker = ''
if has_key(s:delimiterMap, ft)
let b:NERDCommenterDelims = s:delimiterMap[ft]
for i in ['left', 'leftAlt', 'right', 'rightAlt']
if !has_key(b:NERDCommenterDelims, i)
let b:NERDCommenterDelims[i] = ''
endif
endfor
else
let b:NERDCommenterDelims = s:CreateDelimMapFromCms()
endif
endfunction
function s:CreateDelimMapFromCms()
return {
\ 'left': substitute(&commentstring, '\([^ \t]*\)\s*%s.*', '\1', ''),
\ 'right': substitute(&commentstring, '.*%s\s*\(.*\)', '\1', 'g'),
\ 'leftAlt': '',
\ 'rightAlt': '' }
endfunction
" Function: s:SwitchToAlternativeDelimiters(printMsgs) function {{{2
" This function is used to swap the delimiters that are being used to the
" alternative delimiters for that filetype. For example, if a c++ file is
" being edited and // comments are being used, after this function is called
" /**/ comments will be used.
"
" Args:
" -printMsgs: if this is 1 then a message is echoed to the user telling them
" if this function changed the delimiters or not
function s:SwitchToAlternativeDelimiters(printMsgs)
"if both of the alternative delimiters are empty then there is no
"alternative comment style so bail out
if b:NERDCommenterDelims['leftAlt'] == '' && b:NERDCommenterDelims['rightAlt'] == ''
if a:printMsgs
call s:NerdEcho("Cannot use alternative delimiters, none are specified", 0)
endif
return 0
endif
"save the current delimiters
let tempLeft = s:Left()
let tempRight = s:Right()
"swap current delimiters for alternative
let b:NERDCommenterDelims['left'] = b:NERDCommenterDelims['leftAlt']
let b:NERDCommenterDelims['right'] = b:NERDCommenterDelims['rightAlt']
"set the previously current delimiters to be the new alternative ones
let b:NERDCommenterDelims['leftAlt'] = tempLeft
let b:NERDCommenterDelims['rightAlt'] = tempRight
"tell the user what comment delimiters they are now using
if a:printMsgs
call s:NerdEcho("Now using " . s:Left() . " " . s:Right() . " to delimit comments", 1)
endif
return 1
endfunction
" Section: Comment delimiter add/removal functions {{{1
" ============================================================================
" Function: s:AppendCommentToLine(){{{2
" This function appends comment delimiters at the EOL and places the cursor in
" position to start typing the comment
function s:AppendCommentToLine()
let left = s:Left({'space': 1})
let right = s:Right({'space': 1})
" get the len of the right delim
let lenRight = strlen(right)
let isLineEmpty = strlen(getline(".")) == 0
let insOrApp = (isLineEmpty==1 ? 'i' : 'A')
"stick the delimiters down at the end of the line. We have to format the
"comment with spaces as appropriate
execute ":normal! " . insOrApp . (isLineEmpty ? '' : ' ') . left . right . " "
" if there is a right delimiter then we gotta move the cursor left
" by the len of the right delimiter so we insert between the delimiters
if lenRight > 0
let leftMoveAmount = lenRight
execute ":normal! " . leftMoveAmount . "h"
endif
startinsert
endfunction
" Function: s:CommentBlock(top, bottom, lSide, rSide, forceNested ) {{{2
" This function is used to comment out a region of code. This region is
" specified as a bounding box by arguments to the function.
"
" Args:
" -top: the line number for the top line of code in the region
" -bottom: the line number for the bottom line of code in the region
" -lSide: the column number for the left most column in the region
" -rSide: the column number for the right most column in the region
" -forceNested: a flag indicating whether comments should be nested
function s:CommentBlock(top, bottom, lSide, rSide, forceNested )
" we need to create local copies of these arguments so we can modify them
let top = a:top
let bottom = a:bottom
let lSide = a:lSide
let rSide = a:rSide
"if the top or bottom line starts with tabs we have to adjust the left and
"right boundaries so that they are set as though the tabs were spaces
let topline = getline(top)
let bottomline = getline(bottom)
if s:HasLeadingTabs(topline, bottomline)
"find out how many tabs are in the top line and adjust the left
"boundary accordingly
let numTabs = s:NumberOfLeadingTabs(topline)
if lSide < numTabs
let lSide = &ts * lSide
else
let lSide = (lSide - numTabs) + (&ts * numTabs)
endif
"find out how many tabs are in the bottom line and adjust the right
"boundary accordingly
let numTabs = s:NumberOfLeadingTabs(bottomline)
let rSide = (rSide - numTabs) + (&ts * numTabs)
endif
"we must check that bottom IS actually below top, if it is not then we
"swap top and bottom. Similarly for left and right.
if bottom < top
let temp = top
let top = bottom
let bottom = top
endif
if rSide < lSide
let temp = lSide
let lSide = rSide
let rSide = temp
endif
"if the current delimiters arent multipart then we will switch to the
"alternative delims (if THEY are) as the comment will be better and more
"accurate with multipart delims
let switchedDelims = 0
if !s:Multipart() && g:NERDAllowAnyVisualDelims && s:AltMultipart()
let switchedDelims = 1
call s:SwitchToAlternativeDelimiters(0)
endif
"start the commenting from the top and keep commenting till we reach the
"bottom
let currentLine=top
while currentLine <= bottom
"check if we are allowed to comment this line
if s:CanCommentLine(a:forceNested, currentLine)
"convert the leading tabs into spaces
let theLine = getline(currentLine)
let lineHasLeadTabs = s:HasLeadingTabs(theLine)
if lineHasLeadTabs
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
endif
"dont comment lines that begin after the right boundary of the
"block unless the user has specified to do so
if theLine !~ '^ \{' . rSide . '\}' || !g:NERDBlockComIgnoreEmpty
"attempt to place the cursor in on the left of the boundary box,
"then check if we were successful, if not then we cant comment this
"line
call setline(currentLine, theLine)
if s:CanPlaceCursor(currentLine, lSide)
let leftSpaced = s:Left({'space': 1})
let rightSpaced = s:Right({'space': 1})
"stick the left delimiter down
let theLine = strpart(theLine, 0, lSide-1) . leftSpaced . strpart(theLine, lSide-1)
if s:Multipart()
"stick the right delimiter down
let theLine = strpart(theLine, 0, rSide+strlen(leftSpaced)) . rightSpaced . strpart(theLine, rSide+strlen(leftSpaced))
let firstLeftDelim = s:FindDelimiterIndex(s:Left(), theLine)
let lastRightDelim = s:LastIndexOfDelim(s:Right(), theLine)
if firstLeftDelim != -1 && lastRightDelim != -1
let searchStr = strpart(theLine, 0, lastRightDelim)
let searchStr = strpart(searchStr, firstLeftDelim+strlen(s:Left()))
"replace the outter most delims in searchStr with
"place-holders
let theLineWithPlaceHolders = s:ReplaceDelims(s:Left(), s:Right(), g:NERDLPlace, g:NERDRPlace, searchStr)
"add the right delimiter onto the line
let theLine = strpart(theLine, 0, firstLeftDelim+strlen(s:Left())) . theLineWithPlaceHolders . strpart(theLine, lastRightDelim)
endif
endif
endif
endif
"restore tabs if needed
if lineHasLeadTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(currentLine, theLine)
endif
let currentLine = currentLine + 1
endwhile
"if we switched delims then we gotta go back to what they were before
if switchedDelims == 1
call s:SwitchToAlternativeDelimiters(0)
endif
endfunction
" Function: s:CommentLines(forceNested, alignLeft, alignRight, firstLine, lastLine) {{{2
" This function comments a range of lines.
"
" Args:
" -forceNested: a flag indicating whether the called is requesting the comment
" to be nested if need be
" -align: should be "left" or "both" or "none"
" -firstLine/lastLine: the top and bottom lines to comment
function s:CommentLines(forceNested, align, firstLine, lastLine)
" we need to get the left and right indexes of the leftmost char in the
" block of of lines and the right most char so that we can do alignment of
" the delimiters if the user has specified
let leftAlignIndx = s:LeftMostIndx(a:forceNested, 0, a:firstLine, a:lastLine)
let rightAlignIndx = s:RightMostIndx(a:forceNested, 0, a:firstLine, a:lastLine)
" gotta add the length of the left delimiter onto the rightAlignIndx cos
" we'll be adding a left delim to the line
let rightAlignIndx = rightAlignIndx + strlen(s:Left({'space': 1}))
" now we actually comment the lines. Do it line by line
let currentLine = a:firstLine
while currentLine <= a:lastLine
" get the next line, check commentability and convert spaces to tabs
let theLine = getline(currentLine)
let lineHasLeadingTabs = s:HasLeadingTabs(theLine)
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
if s:CanCommentLine(a:forceNested, currentLine)
"if the user has specified forceNesting then we check to see if we
"need to switch delimiters for place-holders
if a:forceNested && g:NERDUsePlaceHolders
let theLine = s:SwapOutterMultiPartDelimsForPlaceHolders(theLine)
endif
" find out if the line is commented using normal delims and/or
" alternate ones
let isCommented = s:IsCommented(s:Left(), s:Right(), theLine) || s:IsCommented(s:Left({'alt': 1}), s:Right({'alt': 1}), theLine)
" check if we can comment this line
if !isCommented || g:NERDUsePlaceHolders || s:Multipart()
if a:align == "left" || a:align == "both"
let theLine = s:AddLeftDelimAligned(s:Left({'space': 1}), theLine, leftAlignIndx)
else
let theLine = s:AddLeftDelim(s:Left({'space': 1}), theLine)
endif
if a:align == "both"
let theLine = s:AddRightDelimAligned(s:Right({'space': 1}), theLine, rightAlignIndx)
else
let theLine = s:AddRightDelim(s:Right({'space': 1}), theLine)
endif
endif
endif
" restore leading tabs if appropriate
if lineHasLeadingTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
" we are done with this line
call setline(currentLine, theLine)
let currentLine = currentLine + 1
endwhile
endfunction
" Function: s:CommentLinesMinimal(firstLine, lastLine) {{{2
" This function comments a range of lines in a minimal style. I
"
" Args:
" -firstLine/lastLine: the top and bottom lines to comment
function s:CommentLinesMinimal(firstLine, lastLine)
"check that minimal comments can be done on this filetype
if !s:HasMultipartDelims()
throw 'NERDCommenter.Delimiters exception: Minimal comments can only be used for filetypes that have multipart delimiters'
endif
"if we need to use place holders for the comment, make sure they are
"enabled for this filetype
if !g:NERDUsePlaceHolders && s:DoesBlockHaveMultipartDelim(a:firstLine, a:lastLine)
throw 'NERDCommenter.Settings exception: Place holders are required but disabled.'
endif
"get the left and right delims to smack on
let left = s:GetSexyComLeft(g:NERDSpaceDelims,0)
let right = s:GetSexyComRight(g:NERDSpaceDelims,0)
"make sure all multipart delims on the lines are replaced with
"placeholders to prevent illegal syntax
let currentLine = a:firstLine
while(currentLine <= a:lastLine)
let theLine = getline(currentLine)
let theLine = s:ReplaceDelims(left, right, g:NERDLPlace, g:NERDRPlace, theLine)
call setline(currentLine, theLine)
let currentLine = currentLine + 1
endwhile
"add the delim to the top line
let theLine = getline(a:firstLine)
let lineHasLeadingTabs = s:HasLeadingTabs(theLine)
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
let theLine = s:AddLeftDelim(left, theLine)
if lineHasLeadingTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:firstLine, theLine)
"add the delim to the bottom line
let theLine = getline(a:lastLine)
let lineHasLeadingTabs = s:HasLeadingTabs(theLine)
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
let theLine = s:AddRightDelim(right, theLine)
if lineHasLeadingTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:lastLine, theLine)
endfunction
" Function: s:CommentLinesSexy(topline, bottomline) function {{{2
" This function is used to comment lines in the 'Sexy' style. eg in c:
" /*
" * This is a sexy comment
" */
" Args:
" -topline: the line num of the top line in the sexy comment
" -bottomline: the line num of the bottom line in the sexy comment
function s:CommentLinesSexy(topline, bottomline)
let left = s:GetSexyComLeft(0, 0)
let right = s:GetSexyComRight(0, 0)
"check if we can do a sexy comment with the available delimiters
if left == -1 || right == -1
throw 'NERDCommenter.Delimiters exception: cannot perform sexy comments with available delimiters.'
endif
"make sure the lines arent already commented sexually
if !s:CanSexyCommentLines(a:topline, a:bottomline)
throw 'NERDCommenter.Nesting exception: cannot nest sexy comments'
endif
let sexyComMarker = s:GetSexyComMarker(0,0)
let sexyComMarkerSpaced = s:GetSexyComMarker(1,0)
" we jam the comment as far to the right as possible
let leftAlignIndx = s:LeftMostIndx(1, 1, a:topline, a:bottomline)
"check if we should use the compact style i.e that the left/right
"delimiters should appear on the first and last lines of the code and not
"on separate lines above/below the first/last lines of code
if g:NERDCompactSexyComs
let spaceString = (g:NERDSpaceDelims ? s:spaceStr : '')
"comment the top line
let theLine = getline(a:topline)
let lineHasTabs = s:HasLeadingTabs(theLine)
if lineHasTabs
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
endif
let theLine = s:SwapOutterMultiPartDelimsForPlaceHolders(theLine)
let theLine = s:AddLeftDelimAligned(left . spaceString, theLine, leftAlignIndx)
if lineHasTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:topline, theLine)
"comment the bottom line
if a:bottomline != a:topline
let theLine = getline(a:bottomline)
let lineHasTabs = s:HasLeadingTabs(theLine)
if lineHasTabs
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
endif
let theLine = s:SwapOutterMultiPartDelimsForPlaceHolders(theLine)
endif
let theLine = s:AddRightDelim(spaceString . right, theLine)
if lineHasTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:bottomline, theLine)
else
" add the left delimiter one line above the lines that are to be commented
call cursor(a:topline, 1)
execute 'normal! O'
let theLine = repeat(' ', leftAlignIndx) . left
" Make sure tabs are respected
if !&expandtab
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:topline, theLine)
" add the right delimiter after bottom line (we have to add 1 cos we moved
" the lines down when we added the left delim
call cursor(a:bottomline+1, 1)
execute 'normal! o'
let theLine = repeat(' ', leftAlignIndx) . repeat(' ', strlen(left)-strlen(sexyComMarker)) . right
" Make sure tabs are respected
if !&expandtab
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
call setline(a:bottomline+2, theLine)
endif
" go thru each line adding the sexyComMarker marker to the start of each
" line in the appropriate place to align them with the comment delims
let currentLine = a:topline+1
while currentLine <= a:bottomline + !g:NERDCompactSexyComs
" get the line and convert the tabs to spaces
let theLine = getline(currentLine)
let lineHasTabs = s:HasLeadingTabs(theLine)
if lineHasTabs
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
endif
let theLine = s:SwapOutterMultiPartDelimsForPlaceHolders(theLine)
" add the sexyComMarker
let theLine = repeat(' ', leftAlignIndx) . repeat(' ', strlen(left)-strlen(sexyComMarker)) . sexyComMarkerSpaced . strpart(theLine, leftAlignIndx)
if lineHasTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
" set the line and move onto the next one
call setline(currentLine, theLine)
let currentLine = currentLine + 1
endwhile
endfunction
" Function: s:CommentLinesToggle(forceNested, firstLine, lastLine) {{{2
" Applies "toggle" commenting to the given range of lines
"
" Args:
" -forceNested: a flag indicating whether the called is requesting the comment
" to be nested if need be
" -firstLine/lastLine: the top and bottom lines to comment
function s:CommentLinesToggle(forceNested, firstLine, lastLine)
let currentLine = a:firstLine
while currentLine <= a:lastLine
" get the next line, check commentability and convert spaces to tabs
let theLine = getline(currentLine)
let lineHasLeadingTabs = s:HasLeadingTabs(theLine)
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
if s:CanToggleCommentLine(a:forceNested, currentLine)
"if the user has specified forceNesting then we check to see if we
"need to switch delimiters for place-holders
if g:NERDUsePlaceHolders
let theLine = s:SwapOutterMultiPartDelimsForPlaceHolders(theLine)
endif
let theLine = s:AddLeftDelim(s:Left({'space': 1}), theLine)
let theLine = s:AddRightDelim(s:Right({'space': 1}), theLine)
endif
" restore leading tabs if appropriate
if lineHasLeadingTabs
let theLine = s:ConvertLeadingSpacesToTabs(theLine)
endif
" we are done with this line
call setline(currentLine, theLine)
let currentLine = currentLine + 1
endwhile
endfunction
" Function: s:CommentRegion(topline, topCol, bottomLine, bottomCol) function {{{2
" This function comments chunks of text selected in visual mode.
" It will comment exactly the text that they have selected.
" Args:
" -topLine: the line num of the top line in the sexy comment
" -topCol: top left col for this comment
" -bottomline: the line num of the bottom line in the sexy comment
" -bottomCol: the bottom right col for this comment
" -forceNested: whether the caller wants comments to be nested if the
" line(s) are already commented
function s:CommentRegion(topLine, topCol, bottomLine, bottomCol, forceNested)
"switch delims (if we can) if the current set isnt multipart
let switchedDelims = 0
if !s:Multipart() && s:AltMultipart() && !g:NERDAllowAnyVisualDelims
let switchedDelims = 1
call s:SwitchToAlternativeDelimiters(0)
endif
"if there is only one line in the comment then just do it
if a:topLine == a:bottomLine
call s:CommentBlock(a:topLine, a:bottomLine, a:topCol, a:bottomCol, a:forceNested)
"there are multiple lines in the comment
else
"comment the top line
call s:CommentBlock(a:topLine, a:topLine, a:topCol, strlen(getline(a:topLine)), a:forceNested)
"comment out all the lines in the middle of the comment
let topOfRange = a:topLine+1
let bottomOfRange = a:bottomLine-1
if topOfRange <= bottomOfRange
call s:CommentLines(a:forceNested, "none", topOfRange, bottomOfRange)
endif
"comment the bottom line
let bottom = getline(a:bottomLine)
let numLeadingSpacesTabs = strlen(substitute(bottom, '^\([ \t]*\).*$', '\1', ''))
call s:CommentBlock(a:bottomLine, a:bottomLine, numLeadingSpacesTabs+1, a:bottomCol, a:forceNested)
endif
"stick the cursor back on the char it was on before the comment
call cursor(a:topLine, a:topCol + strlen(s:Left()) + g:NERDSpaceDelims)
"if we switched delims then we gotta go back to what they were before
if switchedDelims == 1
call s:SwitchToAlternativeDelimiters(0)
endif
endfunction
" Function: s:InvertComment(firstLine, lastLine) function {{{2
" Inverts the comments on the lines between and including the given line
" numbers i.e all commented lines are uncommented and vice versa
" Args:
" -firstLine: the top of the range of lines to be inverted
" -lastLine: the bottom of the range of lines to be inverted
function s:InvertComment(firstLine, lastLine)
" go thru all lines in the given range
let currentLine = a:firstLine
while currentLine <= a:lastLine
let theLine = getline(currentLine)
let sexyComBounds = s:FindBoundingLinesOfSexyCom(currentLine)
" if the line is commented normally, uncomment it
if s:IsCommentedFromStartOfLine(s:Left(), theLine) || s:IsCommentedFromStartOfLine(s:Left({'alt': 1}), theLine)
call s:UncommentLines(currentLine, currentLine)
let currentLine = currentLine + 1
" check if the line is commented sexually
elseif !empty(sexyComBounds)
let numLinesBeforeSexyComRemoved = s:NumLinesInBuf()
call s:UncommentLinesSexy(sexyComBounds[0], sexyComBounds[1])
"move to the line after last line of the sexy comment
let numLinesAfterSexyComRemoved = s:NumLinesInBuf()
let currentLine = sexyComBounds[1] - (numLinesBeforeSexyComRemoved - numLinesAfterSexyComRemoved) + 1
" the line isnt commented
else
call s:CommentLinesToggle(1, currentLine, currentLine)
let currentLine = currentLine + 1
endif
endwhile
endfunction
" Function: NERDComment(isVisual, type) function {{{2
" This function is a Wrapper for the main commenting functions
"
" Args:
" -isVisual: a flag indicating whether the comment is requested in visual
" mode or not
" -type: the type of commenting requested. Can be 'sexy', 'invert',
" 'minimal', 'toggle', 'alignLeft', 'alignBoth', 'norm',
" 'nested', 'toEOL', 'append', 'insert', 'uncomment', 'yank'
function! NERDComment(isVisual, type) range
" we want case sensitivity when commenting
let oldIgnoreCase = &ignorecase
set noignorecase
if !exists("g:did_load_ftplugin") || g:did_load_ftplugin != 1
call s:NerdEcho("filetype plugins should be enabled. See :help NERDComInstallation and :help :filetype-plugin-on", 0)
endif
if a:isVisual
let firstLine = line("'<")
let lastLine = line("'>")
let firstCol = col("'<")
let lastCol = col("'>") - (&selection == 'exclusive' ? 1 : 0)
else
let firstLine = a:firstline
let lastLine = a:lastline
endif
let countWasGiven = (a:isVisual == 0 && firstLine != lastLine)
let forceNested = (a:type == 'nested' || g:NERDDefaultNesting)
if a:type == 'norm' || a:type == 'nested'
if a:isVisual && visualmode() == ""
call s:CommentBlock(firstLine, lastLine, firstCol, lastCol, forceNested)
elseif a:isVisual && visualmode() == "v" && (g:NERDCommentWholeLinesInVMode==0 || (g:NERDCommentWholeLinesInVMode==2 && s:HasMultipartDelims()))
call s:CommentRegion(firstLine, firstCol, lastLine, lastCol, forceNested)
else
call s:CommentLines(forceNested, "none", firstLine, lastLine)
endif
elseif a:type == 'alignLeft' || a:type == 'alignBoth'
let align = "none"
if a:type == "alignLeft"
let align = "left"
elseif a:type == "alignBoth"
let align = "both"
endif
call s:CommentLines(forceNested, align, firstLine, lastLine)
elseif a:type == 'invert'
call s:InvertComment(firstLine, lastLine)
elseif a:type == 'sexy'
try
call s:CommentLinesSexy(firstLine, lastLine)
catch /NERDCommenter.Delimiters/
call s:CommentLines(forceNested, "none", firstLine, lastLine)
catch /NERDCommenter.Nesting/
call s:NerdEcho("Sexy comment aborted. Nested sexy cannot be nested", 0)
endtry
elseif a:type == 'toggle'
let theLine = getline(firstLine)
if s:IsInSexyComment(firstLine) || s:IsCommentedFromStartOfLine(s:Left(), theLine) || s:IsCommentedFromStartOfLine(s:Left({'alt': 1}), theLine)
call s:UncommentLines(firstLine, lastLine)
else
call s:CommentLinesToggle(forceNested, firstLine, lastLine)
endif
elseif a:type == 'minimal'
try
call s:CommentLinesMinimal(firstLine, lastLine)
catch /NERDCommenter.Delimiters/
call s:NerdEcho("Minimal comments can only be used for filetypes that have multipart delimiters.", 0)
catch /NERDCommenter.Settings/
call s:NerdEcho("Place holders are required but disabled.", 0)
endtry
elseif a:type == 'toEOL'
call s:SaveScreenState()
call s:CommentBlock(firstLine, firstLine, col("."), col("$")-1, 1)
call s:RestoreScreenState()
elseif a:type == 'append'
call s:AppendCommentToLine()
elseif a:type == 'insert'
call s:PlaceDelimitersAndInsBetween()
elseif a:type == 'uncomment'
call s:UncommentLines(firstLine, lastLine)
elseif a:type == 'yank'
if a:isVisual
normal! gvy
elseif countWasGiven
execute firstLine .','. lastLine .'yank'
else
normal! yy
endif
execute firstLine .','. lastLine .'call NERDComment('. a:isVisual .', "norm")'
endif
let &ignorecase = oldIgnoreCase
endfunction
" Function: s:PlaceDelimitersAndInsBetween() function {{{2
" This is function is called to place comment delimiters down and place the
" cursor between them
function s:PlaceDelimitersAndInsBetween()
" get the left and right delimiters without any escape chars in them
let left = s:Left({'space': 1})
let right = s:Right({'space': 1})
let theLine = getline(".")
let lineHasLeadTabs = s:HasLeadingTabs(theLine) || (theLine =~ '^ *$' && !&expandtab)
"convert tabs to spaces and adjust the cursors column to take this into
"account
let untabbedCol = s:UntabbedCol(theLine, col("."))
call setline(line("."), s:ConvertLeadingTabsToSpaces(theLine))
call cursor(line("."), untabbedCol)
" get the len of the right delim
let lenRight = strlen(right)
let isDelimOnEOL = col(".") >= strlen(getline("."))
" if the cursor is in the first col then we gotta insert rather than
" append the comment delimiters here
let insOrApp = (col(".")==1 ? 'i' : 'a')
" place the delimiters down. We do it differently depending on whether
" there is a left AND right delimiter
if lenRight > 0
execute ":normal! " . insOrApp . left . right
execute ":normal! " . lenRight . "h"
else
execute ":normal! " . insOrApp . left
" if we are tacking the delim on the EOL then we gotta add a space
" after it cos when we go out of insert mode the cursor will move back
" one and the user wont be in position to type the comment.
if isDelimOnEOL
execute 'normal! a '
endif
endif
normal! l
"if needed convert spaces back to tabs and adjust the cursors col
"accordingly
if lineHasLeadTabs
let tabbedCol = s:TabbedCol(getline("."), col("."))
call setline(line("."), s:ConvertLeadingSpacesToTabs(getline(".")))
call cursor(line("."), tabbedCol)
endif
startinsert
endfunction
" Function: s:RemoveDelimiters(left, right, line) {{{2
" this function is called to remove the first left comment delimiter and the
" last right delimiter of the given line.
"
" The args left and right must be strings. If there is no right delimiter (as
" is the case for e.g vim file comments) them the arg right should be ""
"
" Args:
" -left: the left comment delimiter
" -right: the right comment delimiter
" -line: the line to remove the delimiters from
function s:RemoveDelimiters(left, right, line)
let l:left = a:left
let l:right = a:right
let lenLeft = strlen(left)
let lenRight = strlen(right)
let delimsSpaced = (g:NERDSpaceDelims || g:NERDRemoveExtraSpaces)
let line = a:line
"look for the left delimiter, if we find it, remove it.
let leftIndx = s:FindDelimiterIndex(a:left, line)
if leftIndx != -1
let line = strpart(line, 0, leftIndx) . strpart(line, leftIndx+lenLeft)
"if the user has specified that there is a space after the left delim
"then check for the space and remove it if it is there
if delimsSpaced && strpart(line, leftIndx, s:lenSpaceStr) == s:spaceStr
let line = strpart(line, 0, leftIndx) . strpart(line, leftIndx+s:lenSpaceStr)
endif
endif
"look for the right delimiter, if we find it, remove it
let rightIndx = s:FindDelimiterIndex(a:right, line)
if rightIndx != -1
let line = strpart(line, 0, rightIndx) . strpart(line, rightIndx+lenRight)
"if the user has specified that there is a space before the right delim
"then check for the space and remove it if it is there
if delimsSpaced && strpart(line, rightIndx-s:lenSpaceStr, s:lenSpaceStr) == s:spaceStr && s:Multipart()
let line = strpart(line, 0, rightIndx-s:lenSpaceStr) . strpart(line, rightIndx)
endif
endif
return line
endfunction
" Function: s:UncommentLines(topLine, bottomLine) {{{2
" This function uncomments the given lines
"
" Args:
" topLine: the top line of the visual selection to uncomment
" bottomLine: the bottom line of the visual selection to uncomment
function s:UncommentLines(topLine, bottomLine)
"make local copies of a:firstline and a:lastline and, if need be, swap
"them around if the top line is below the bottom
let l:firstline = a:topLine
let l:lastline = a:bottomLine
if firstline > lastline
let firstline = lastline
let lastline = a:topLine
endif
"go thru each line uncommenting each line removing sexy comments
let currentLine = firstline
while currentLine <= lastline
"check the current line to see if it is part of a sexy comment
let sexyComBounds = s:FindBoundingLinesOfSexyCom(currentLine)
if !empty(sexyComBounds)
"we need to store the num lines in the buf before the comment is
"removed so we know how many lines were removed when the sexy com
"was removed
let numLinesBeforeSexyComRemoved = s:NumLinesInBuf()
call s:UncommentLinesSexy(sexyComBounds[0], sexyComBounds[1])
"move to the line after last line of the sexy comment
let numLinesAfterSexyComRemoved = s:NumLinesInBuf()
let numLinesRemoved = numLinesBeforeSexyComRemoved - numLinesAfterSexyComRemoved
let currentLine = sexyComBounds[1] - numLinesRemoved + 1
let lastline = lastline - numLinesRemoved
"no sexy com was detected so uncomment the line as normal
else
call s:UncommentLinesNormal(currentLine, currentLine)
let currentLine = currentLine + 1
endif
endwhile
endfunction
" Function: s:UncommentLinesSexy(topline, bottomline) {{{2
" This function removes all the comment characters associated with the sexy
" comment spanning the given lines
" Args:
" -topline/bottomline: the top/bottom lines of the sexy comment
function s:UncommentLinesSexy(topline, bottomline)
let left = s:GetSexyComLeft(0,1)
let right = s:GetSexyComRight(0,1)
"check if it is even possible for sexy comments to exist with the
"available delimiters
if left == -1 || right == -1
throw 'NERDCommenter.Delimiters exception: cannot uncomment sexy comments with available delimiters.'
endif
let leftUnEsc = s:GetSexyComLeft(0,0)
let rightUnEsc = s:GetSexyComRight(0,0)
let sexyComMarker = s:GetSexyComMarker(0, 1)
let sexyComMarkerUnEsc = s:GetSexyComMarker(0, 0)
"the markerOffset is how far right we need to move the sexyComMarker to
"line it up with the end of the left delim
let markerOffset = strlen(leftUnEsc)-strlen(sexyComMarkerUnEsc)
" go thru the intermediate lines of the sexy comment and remove the
" sexy comment markers (eg the '*'s on the start of line in a c sexy
" comment)
let currentLine = a:topline+1
while currentLine < a:bottomline
let theLine = getline(currentLine)
" remove the sexy comment marker from the line. We also remove the
" space after it if there is one and if appropriate options are set
let sexyComMarkerIndx = stridx(theLine, sexyComMarkerUnEsc)
if strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc), s:lenSpaceStr) == s:spaceStr && g:NERDSpaceDelims
let theLine = strpart(theLine, 0, sexyComMarkerIndx - markerOffset) . strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc)+s:lenSpaceStr)
else
let theLine = strpart(theLine, 0, sexyComMarkerIndx - markerOffset) . strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc))
endif
let theLine = s:SwapOutterPlaceHoldersForMultiPartDelims(theLine)
let theLine = s:ConvertLeadingWhiteSpace(theLine)
" move onto the next line
call setline(currentLine, theLine)
let currentLine = currentLine + 1
endwhile
" gotta make a copy of a:bottomline cos we modify the position of the
" last line it if we remove the topline
let bottomline = a:bottomline
" get the first line so we can remove the left delim from it
let theLine = getline(a:topline)
" if the first line contains only the left delim then just delete it
if theLine =~ '^[ \t]*' . left . '[ \t]*$' && !g:NERDCompactSexyComs
call cursor(a:topline, 1)
normal! dd
let bottomline = bottomline - 1
" topline contains more than just the left delim
else
" remove the delim. If there is a space after it
" then remove this too if appropriate
let delimIndx = stridx(theLine, leftUnEsc)
if strpart(theLine, delimIndx+strlen(leftUnEsc), s:lenSpaceStr) == s:spaceStr && g:NERDSpaceDelims
let theLine = strpart(theLine, 0, delimIndx) . strpart(theLine, delimIndx+strlen(leftUnEsc)+s:lenSpaceStr)
else
let theLine = strpart(theLine, 0, delimIndx) . strpart(theLine, delimIndx+strlen(leftUnEsc))
endif
let theLine = s:SwapOutterPlaceHoldersForMultiPartDelims(theLine)
call setline(a:topline, theLine)
endif
" get the last line so we can remove the right delim
let theLine = getline(bottomline)
" if the bottomline contains only the right delim then just delete it
if theLine =~ '^[ \t]*' . right . '[ \t]*$'
call cursor(bottomline, 1)
normal! dd
" the last line contains more than the right delim
else
" remove the right delim. If there is a space after it and
" if the appropriate options are set then remove this too.
let delimIndx = s:LastIndexOfDelim(rightUnEsc, theLine)
if strpart(theLine, delimIndx+strlen(leftUnEsc), s:lenSpaceStr) == s:spaceStr && g:NERDSpaceDelims
let theLine = strpart(theLine, 0, delimIndx) . strpart(theLine, delimIndx+strlen(rightUnEsc)+s:lenSpaceStr)
else
let theLine = strpart(theLine, 0, delimIndx) . strpart(theLine, delimIndx+strlen(rightUnEsc))
endif
" if the last line also starts with a sexy comment marker then we
" remove this as well
if theLine =~ '^[ \t]*' . sexyComMarker
" remove the sexyComMarker. If there is a space after it then
" remove that too
let sexyComMarkerIndx = stridx(theLine, sexyComMarkerUnEsc)
if strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc), s:lenSpaceStr) == s:spaceStr && g:NERDSpaceDelims
let theLine = strpart(theLine, 0, sexyComMarkerIndx - markerOffset ) . strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc)+s:lenSpaceStr)
else
let theLine = strpart(theLine, 0, sexyComMarkerIndx - markerOffset ) . strpart(theLine, sexyComMarkerIndx+strlen(sexyComMarkerUnEsc))
endif
endif
let theLine = s:SwapOutterPlaceHoldersForMultiPartDelims(theLine)
call setline(bottomline, theLine)
endif
endfunction
" Function: s:UncommentLineNormal(line) {{{2
" uncomments the given line and returns the result
" Args:
" -line: the line to uncomment
function s:UncommentLineNormal(line)
let line = a:line
"get the comment status on the line so we know how it is commented
let lineCommentStatus = s:IsCommentedOuttermost(s:Left(), s:Right(), s:Left({'alt': 1}), s:Right({'alt': 1}), line)
"it is commented with s:Left() and s:Right() so remove these delims
if lineCommentStatus == 1
let line = s:RemoveDelimiters(s:Left(), s:Right(), line)
"it is commented with s:Left({'alt': 1}) and s:Right({'alt': 1}) so remove these delims
elseif lineCommentStatus == 2 && g:NERDRemoveAltComs
let line = s:RemoveDelimiters(s:Left({'alt': 1}), s:Right({'alt': 1}), line)
"it is not properly commented with any delims so we check if it has
"any random left or right delims on it and remove the outtermost ones
else
"get the positions of all delim types on the line
let indxLeft = s:FindDelimiterIndex(s:Left(), line)
let indxLeftAlt = s:FindDelimiterIndex(s:Left({'alt': 1}), line)
let indxRight = s:FindDelimiterIndex(s:Right(), line)
let indxRightAlt = s:FindDelimiterIndex(s:Right({'alt': 1}), line)
"remove the outter most left comment delim
if indxLeft != -1 && (indxLeft < indxLeftAlt || indxLeftAlt == -1)
let line = s:RemoveDelimiters(s:Left(), '', line)
elseif indxLeftAlt != -1
let line = s:RemoveDelimiters(s:Left({'alt': 1}), '', line)
endif
"remove the outter most right comment delim
if indxRight != -1 && (indxRight < indxRightAlt || indxRightAlt == -1)
let line = s:RemoveDelimiters('', s:Right(), line)
elseif indxRightAlt != -1
let line = s:RemoveDelimiters('', s:Right({'alt': 1}), line)
endif
endif
let indxLeft = s:FindDelimiterIndex(s:Left(), line)
let indxLeftAlt = s:FindDelimiterIndex(s:Left({'alt': 1}), line)
let indxLeftPlace = s:FindDelimiterIndex(g:NERDLPlace, line)
let indxRightPlace = s:FindDelimiterIndex(g:NERDRPlace, line)
let indxRightAlt = s:FindDelimiterIndex(s:Right({'alt': 1}), line)
let indxRightPlace = s:FindDelimiterIndex(g:NERDRPlace, line)
let right = s:Right()
let left = s:Left()
if !s:Multipart()
let right = s:Right({'alt': 1})
let left = s:Left({'alt': 1})
endif
"if there are place-holders on the line then we check to see if they are
"the outtermost delimiters on the line. If so then we replace them with
"real delimiters
if indxLeftPlace != -1
if (indxLeftPlace < indxLeft || indxLeft==-1) && (indxLeftPlace < indxLeftAlt || indxLeftAlt==-1)
let line = s:ReplaceDelims(g:NERDLPlace, g:NERDRPlace, left, right, line)
endif
elseif indxRightPlace != -1
if (indxRightPlace < indxLeft || indxLeft==-1) && (indxLeftPlace < indxLeftAlt || indxLeftAlt==-1)
let line = s:ReplaceDelims(g:NERDLPlace, g:NERDRPlace, left, right, line)
endif
endif
let line = s:ConvertLeadingWhiteSpace(line)
return line
endfunction
" Function: s:UncommentLinesNormal(topline, bottomline) {{{2
" This function is called to uncomment lines that arent a sexy comment
" Args:
" -topline/bottomline: the top/bottom line numbers of the comment
function s:UncommentLinesNormal(topline, bottomline)
let currentLine = a:topline
while currentLine <= a:bottomline
let line = getline(currentLine)
call setline(currentLine, s:UncommentLineNormal(line))
let currentLine = currentLine + 1
endwhile
endfunction
" Section: Other helper functions {{{1
" ============================================================================
" Function: s:AddLeftDelim(delim, theLine) {{{2
" Args:
function s:AddLeftDelim(delim, theLine)
return substitute(a:theLine, '^\([ \t]*\)', '\1' . a:delim, '')
endfunction
" Function: s:AddLeftDelimAligned(delim, theLine) {{{2
" Args:
function s:AddLeftDelimAligned(delim, theLine, alignIndx)
"if the line is not long enough then bung some extra spaces on the front
"so we can align the delim properly
let theLine = a:theLine
if strlen(theLine) < a:alignIndx
let theLine = repeat(' ', a:alignIndx - strlen(theLine))
endif
return strpart(theLine, 0, a:alignIndx) . a:delim . strpart(theLine, a:alignIndx)
endfunction
" Function: s:AddRightDelim(delim, theLine) {{{2
" Args:
function s:AddRightDelim(delim, theLine)
if a:delim == ''
return a:theLine
else
return substitute(a:theLine, '$', a:delim, '')
endif
endfunction
" Function: s:AddRightDelimAligned(delim, theLine, alignIndx) {{{2
" Args:
function s:AddRightDelimAligned(delim, theLine, alignIndx)
if a:delim == ""
return a:theLine
else
" when we align the right delim we are just adding spaces
" so we get a string containing the needed spaces (it
" could be empty)
let extraSpaces = ''
let extraSpaces = repeat(' ', a:alignIndx-strlen(a:theLine))
" add the right delim
return substitute(a:theLine, '$', extraSpaces . a:delim, '')
endif
endfunction
" Function: s:AltMultipart() {{{2
" returns 1 if the alternative delims are multipart
function s:AltMultipart()
return b:NERDCommenterDelims['rightAlt'] != ''
endfunction
" Function: s:CanCommentLine(forceNested, line) {{{2
"This function is used to determine whether the given line can be commented.
"It returns 1 if it can be and 0 otherwise
"
" Args:
" -forceNested: a flag indicating whether the caller wants comments to be nested
" if the current line is already commented
" -lineNum: the line num of the line to check for commentability
function s:CanCommentLine(forceNested, lineNum)
let theLine = getline(a:lineNum)
" make sure we don't comment lines that are just spaces or tabs or empty.
if theLine =~ "^[ \t]*$"
return 0
endif
"if the line is part of a sexy comment then just flag it...
if s:IsInSexyComment(a:lineNum)
return 0
endif
let isCommented = s:IsCommentedNormOrSexy(a:lineNum)
"if the line isnt commented return true
if !isCommented
return 1
endif
"if the line is commented but nesting is allowed then return true
if a:forceNested && (!s:Multipart() || g:NERDUsePlaceHolders)
return 1
endif
return 0
endfunction
" Function: s:CanPlaceCursor(line, col) {{{2
" returns 1 if the cursor can be placed exactly in the given position
function s:CanPlaceCursor(line, col)
let c = col(".")
let l = line(".")
call cursor(a:line, a:col)
let success = (line(".") == a:line && col(".") == a:col)
call cursor(l,c)
return success
endfunction
" Function: s:CanSexyCommentLines(topline, bottomline) {{{2
" Return: 1 if the given lines can be commented sexually, 0 otherwise
function s:CanSexyCommentLines(topline, bottomline)
" see if the selected regions have any sexy comments
let currentLine = a:topline
while(currentLine <= a:bottomline)
if s:IsInSexyComment(currentLine)
return 0
endif
let currentLine = currentLine + 1
endwhile
return 1
endfunction
" Function: s:CanToggleCommentLine(forceNested, line) {{{2
"This function is used to determine whether the given line can be toggle commented.
"It returns 1 if it can be and 0 otherwise
"
" Args:
" -lineNum: the line num of the line to check for commentability
function s:CanToggleCommentLine(forceNested, lineNum)
let theLine = getline(a:lineNum)
if (s:IsCommentedFromStartOfLine(s:Left(), theLine) || s:IsCommentedFromStartOfLine(s:Left({'alt': 1}), theLine)) && !a:forceNested
return 0
endif
" make sure we don't comment lines that are just spaces or tabs or empty.
if theLine =~ "^[ \t]*$"
return 0
endif
"if the line is part of a sexy comment then just flag it...
if s:IsInSexyComment(a:lineNum)
return 0
endif
return 1
endfunction
" Function: s:ConvertLeadingSpacesToTabs(line) {{{2
" This function takes a line and converts all leading tabs on that line into
" spaces
"
" Args:
" -line: the line whose leading tabs will be converted
function s:ConvertLeadingSpacesToTabs(line)
let toReturn = a:line
while toReturn =~ '^\t*' . s:TabSpace() . '\(.*\)$'
let toReturn = substitute(toReturn, '^\(\t*\)' . s:TabSpace() . '\(.*\)$' , '\1\t\2' , "")
endwhile
return toReturn
endfunction
" Function: s:ConvertLeadingTabsToSpaces(line) {{{2
" This function takes a line and converts all leading spaces on that line into
" tabs
"
" Args:
" -line: the line whose leading spaces will be converted
function s:ConvertLeadingTabsToSpaces(line)
let toReturn = a:line
while toReturn =~ '^\( *\)\t'
let toReturn = substitute(toReturn, '^\( *\)\t', '\1' . s:TabSpace() , "")
endwhile
return toReturn
endfunction
" Function: s:ConvertLeadingWhiteSpace(line) {{{2
" Converts the leading white space to tabs/spaces depending on &ts
"
" Args:
" -line: the line to convert
function s:ConvertLeadingWhiteSpace(line)
let toReturn = a:line
while toReturn =~ '^ *\t'
let toReturn = substitute(toReturn, '^ *\zs\t\ze', s:TabSpace(), "g")
endwhile
if !&expandtab
let toReturn = s:ConvertLeadingSpacesToTabs(toReturn)
endif
return toReturn
endfunction
" Function: s:CountNonESCedOccurances(str, searchstr, escChar) {{{2
" This function counts the number of substrings contained in another string.
" These substrings are only counted if they are not escaped with escChar
" Args:
" -str: the string to look for searchstr in
" -searchstr: the substring to search for in str
" -escChar: the escape character which, when preceding an instance of
" searchstr, will cause it not to be counted
function s:CountNonESCedOccurances(str, searchstr, escChar)
"get the index of the first occurrence of searchstr
let indx = stridx(a:str, a:searchstr)
"if there is an instance of searchstr in str process it
if indx != -1
"get the remainder of str after this instance of searchstr is removed
let lensearchstr = strlen(a:searchstr)
let strLeft = strpart(a:str, indx+lensearchstr)
"if this instance of searchstr is not escaped, add one to the count
"and recurse. If it is escaped, just recurse
if !s:IsEscaped(a:str, indx, a:escChar)
return 1 + s:CountNonESCedOccurances(strLeft, a:searchstr, a:escChar)
else
return s:CountNonESCedOccurances(strLeft, a:searchstr, a:escChar)
endif
endif
endfunction
" Function: s:DoesBlockHaveDelim(delim, top, bottom) {{{2
" Returns 1 if the given block of lines has a delimiter (a:delim) in it
" Args:
" -delim: the comment delimiter to check the block for
" -top: the top line number of the block
" -bottom: the bottom line number of the block
function s:DoesBlockHaveDelim(delim, top, bottom)
let currentLine = a:top
while currentLine < a:bottom
let theline = getline(currentLine)
if s:FindDelimiterIndex(a:delim, theline) != -1
return 1
endif
let currentLine = currentLine + 1
endwhile
return 0
endfunction
" Function: s:DoesBlockHaveMultipartDelim(top, bottom) {{{2
" Returns 1 if the given block has a >= 1 multipart delimiter in it
" Args:
" -top: the top line number of the block
" -bottom: the bottom line number of the block
function s:DoesBlockHaveMultipartDelim(top, bottom)
if s:HasMultipartDelims()
if s:Multipart()
return s:DoesBlockHaveDelim(s:Left(), a:top, a:bottom) || s:DoesBlockHaveDelim(s:Right(), a:top, a:bottom)
else
return s:DoesBlockHaveDelim(s:Left({'alt': 1}), a:top, a:bottom) || s:DoesBlockHaveDelim(s:Right({'alt': 1}), a:top, a:bottom)
endif
endif
return 0
endfunction
" Function: s:Esc(str) {{{2
" Escapes all the tricky chars in the given string
function s:Esc(str)
let charsToEsc = '*/\."&$+'
return escape(a:str, charsToEsc)
endfunction
" Function: s:FindDelimiterIndex(delimiter, line) {{{2
" This function is used to get the string index of the input comment delimiter
" on the input line. If no valid comment delimiter is found in the line then
" -1 is returned
" Args:
" -delimiter: the delimiter we are looking to find the index of
" -line: the line we are looking for delimiter on
function s:FindDelimiterIndex(delimiter, line)
"make sure the delimiter isnt empty otherwise we go into an infinite loop.
if a:delimiter == ""
return -1
endif
let l:delimiter = a:delimiter
let lenDel = strlen(l:delimiter)
"get the index of the first occurrence of the delimiter
let delIndx = stridx(a:line, l:delimiter)
"keep looping thru the line till we either find a real comment delimiter
"or run off the EOL
while delIndx != -1
"if we are not off the EOL get the str before the possible delimiter
"in question and check if it really is a delimiter. If it is, return
"its position
if delIndx != -1
if s:IsDelimValid(l:delimiter, delIndx, a:line)
return delIndx
endif
endif
"we have not yet found a real comment delimiter so move past the
"current one we are lookin at
let restOfLine = strpart(a:line, delIndx + lenDel)
let distToNextDelim = stridx(restOfLine , l:delimiter)
"if distToNextDelim is -1 then there is no more potential delimiters
"on the line so set delIndx to -1. Otherwise, move along the line by
"distToNextDelim
if distToNextDelim == -1
let delIndx = -1
else
let delIndx = delIndx + lenDel + distToNextDelim
endif
endwhile
"there is no comment delimiter on this line
return -1
endfunction
" Function: s:FindBoundingLinesOfSexyCom(lineNum) {{{2
" This function takes in a line number and tests whether this line number is
" the top/bottom/middle line of a sexy comment. If it is then the top/bottom
" lines of the sexy comment are returned
" Args:
" -lineNum: the line number that is to be tested whether it is the
" top/bottom/middle line of a sexy com
" Returns:
" A string that has the top/bottom lines of the sexy comment encoded in it.
" The format is 'topline,bottomline'. If a:lineNum turns out not to be the
" top/bottom/middle of a sexy comment then -1 is returned
function s:FindBoundingLinesOfSexyCom(lineNum)
"find which delimiters to look for as the start/end delims of the comment
let left = ''
let right = ''
if s:Multipart()
let left = s:Left({'esc': 1})
let right = s:Right({'esc': 1})
elseif s:AltMultipart()
let left = s:Left({'alt': 1, 'esc': 1})
let right = s:Right({'alt': 1, 'esc': 1})
else
return []
endif
let sexyComMarker = s:GetSexyComMarker(0, 1)
"initialise the top/bottom line numbers of the sexy comment to -1
let top = -1
let bottom = -1
let currentLine = a:lineNum
while top == -1 || bottom == -1
let theLine = getline(currentLine)
"check if the current line is the top of the sexy comment
if currentLine <= a:lineNum && theLine =~ '^[ \t]*' . left && theLine !~ '.*' . right && currentLine < s:NumLinesInBuf()
let top = currentLine
let currentLine = a:lineNum
"check if the current line is the bottom of the sexy comment
elseif theLine =~ '^[ \t]*' . right && theLine !~ '.*' . left && currentLine > 1
let bottom = currentLine
"the right delimiter is on the same line as the last sexyComMarker
elseif theLine =~ '^[ \t]*' . sexyComMarker . '.*' . right
let bottom = currentLine
"we have not found the top or bottom line so we assume currentLine is an
"intermediate line and look to prove otherwise
else
"if the line doesnt start with a sexyComMarker then it is not a sexy
"comment
if theLine !~ '^[ \t]*' . sexyComMarker
return []
endif
endif
"if top is -1 then we havent found the top yet so keep looking up
if top == -1
let currentLine = currentLine - 1
"if we have found the top line then go down looking for the bottom
else
let currentLine = currentLine + 1
endif
endwhile
return [top, bottom]
endfunction
" Function: s:GetSexyComMarker() {{{2
" Returns the sexy comment marker for the current filetype.
"
" C style sexy comments are assumed if possible. If not then the sexy comment
" marker is the last char of the delimiter pair that has both left and right
" delims and has the longest left delim
"
" Args:
" -space: specifies whether the marker is to have a space string after it
" (the space string will only be added if NERDSpaceDelims is set)
" -esc: specifies whether the tricky chars in the marker are to be ESCed
function s:GetSexyComMarker(space, esc)
let sexyComMarker = b:NERDSexyComMarker
"if there is no hardcoded marker then we find one
if sexyComMarker == ''
"if the filetype has c style comments then use standard c sexy
"comments
if s:HasCStyleComments()
let sexyComMarker = '*'
else
"find a comment marker by getting the longest available left delim
"(that has a corresponding right delim) and taking the last char
let lenLeft = strlen(s:Left())
let lenLeftAlt = strlen(s:Left({'alt': 1}))
let left = ''
let right = ''
if s:Multipart() && lenLeft >= lenLeftAlt
let left = s:Left()
elseif s:AltMultipart()
let left = s:Left({'alt': 1})
else
return -1
endif
"get the last char of left
let sexyComMarker = strpart(left, strlen(left)-1)
endif
endif
if a:space && g:NERDSpaceDelims
let sexyComMarker = sexyComMarker . s:spaceStr
endif
if a:esc
let sexyComMarker = s:Esc(sexyComMarker)
endif
return sexyComMarker
endfunction
" Function: s:GetSexyComLeft(space, esc) {{{2
" Returns the left delimiter for sexy comments for this filetype or -1 if
" there is none. C style sexy comments are used if possible
" Args:
" -space: specifies if the delim has a space string on the end
" (the space string will only be added if NERDSpaceDelims is set)
" -esc: specifies whether the tricky chars in the string are ESCed
function s:GetSexyComLeft(space, esc)
let lenLeft = strlen(s:Left())
let lenLeftAlt = strlen(s:Left({'alt': 1}))
let left = ''
"assume c style sexy comments if possible
if s:HasCStyleComments()
let left = '/*'
else
"grab the longest left delim that has a right
if s:Multipart() && lenLeft >= lenLeftAlt
let left = s:Left()
elseif s:AltMultipart()
let left = s:Left({'alt': 1})
else
return -1
endif
endif
if a:space && g:NERDSpaceDelims
let left = left . s:spaceStr
endif
if a:esc
let left = s:Esc(left)
endif
return left
endfunction
" Function: s:GetSexyComRight(space, esc) {{{2
" Returns the right delimiter for sexy comments for this filetype or -1 if
" there is none. C style sexy comments are used if possible.
" Args:
" -space: specifies if the delim has a space string on the start
" (the space string will only be added if NERDSpaceDelims
" is specified for the current filetype)
" -esc: specifies whether the tricky chars in the string are ESCed
function s:GetSexyComRight(space, esc)
let lenLeft = strlen(s:Left())
let lenLeftAlt = strlen(s:Left({'alt': 1}))
let right = ''
"assume c style sexy comments if possible
if s:HasCStyleComments()
let right = '*/'
else
"grab the right delim that pairs with the longest left delim
if s:Multipart() && lenLeft >= lenLeftAlt
let right = s:Right()
elseif s:AltMultipart()
let right = s:Right({'alt': 1})
else
return -1
endif
endif
if a:space && g:NERDSpaceDelims
let right = s:spaceStr . right
endif
if a:esc
let right = s:Esc(right)
endif
return right
endfunction
" Function: s:HasMultipartDelims() {{{2
" Returns 1 iff the current filetype has at least one set of multipart delims
function s:HasMultipartDelims()
return s:Multipart() || s:AltMultipart()
endfunction
" Function: s:HasLeadingTabs(...) {{{2
" Returns 1 if any of the given strings have leading tabs
function s:HasLeadingTabs(...)
for s in a:000
if s =~ '^\t.*'
return 1
end
endfor
return 0
endfunction
" Function: s:HasCStyleComments() {{{2
" Returns 1 iff the current filetype has c style comment delimiters
function s:HasCStyleComments()
return (s:Left() == '/*' && s:Right() == '*/') || (s:Left({'alt': 1}) == '/*' && s:Right({'alt': 1}) == '*/')
endfunction
" Function: s:IsCommentedNormOrSexy(lineNum) {{{2
"This function is used to determine whether the given line is commented with
"either set of delimiters or if it is part of a sexy comment
"
" Args:
" -lineNum: the line number of the line to check
function s:IsCommentedNormOrSexy(lineNum)
let theLine = getline(a:lineNum)
"if the line is commented normally return 1
if s:IsCommented(s:Left(), s:Right(), theLine) || s:IsCommented(s:Left({'alt': 1}), s:Right({'alt': 1}), theLine)
return 1
endif
"if the line is part of a sexy comment return 1
if s:IsInSexyComment(a:lineNum)
return 1
endif
return 0
endfunction
" Function: s:IsCommented(left, right, line) {{{2
"This function is used to determine whether the given line is commented with
"the given delimiters
"
" Args:
" -line: the line that to check if commented
" -left/right: the left and right delimiters to check for
function s:IsCommented(left, right, line)
"if the line isnt commented return true
if s:FindDelimiterIndex(a:left, a:line) != -1 && (s:FindDelimiterIndex(a:right, a:line) != -1 || !s:Multipart())
return 1
endif
return 0
endfunction
" Function: s:IsCommentedFromStartOfLine(left, line) {{{2
"This function is used to determine whether the given line is commented with
"the given delimiters at the start of the line i.e the left delimiter is the
"first thing on the line (apart from spaces\tabs)
"
" Args:
" -line: the line that to check if commented
" -left: the left delimiter to check for
function s:IsCommentedFromStartOfLine(left, line)
let theLine = s:ConvertLeadingTabsToSpaces(a:line)
let numSpaces = strlen(substitute(theLine, '^\( *\).*$', '\1', ''))
let delimIndx = s:FindDelimiterIndex(a:left, theLine)
return delimIndx == numSpaces
endfunction
" Function: s:IsCommentedOuttermost(left, right, leftAlt, rightAlt, line) {{{2
" Finds the type of the outtermost delims on the line
"
" Args:
" -line: the line that to check if the outtermost comments on it are
" left/right
" -left/right: the left and right delimiters to check for
" -leftAlt/rightAlt: the left and right alternative delimiters to check for
"
" Returns:
" 0 if the line is not commented with either set of delims
" 1 if the line is commented with the left/right delim set
" 2 if the line is commented with the leftAlt/rightAlt delim set
function s:IsCommentedOuttermost(left, right, leftAlt, rightAlt, line)
"get the first positions of the left delims and the last positions of the
"right delims
let indxLeft = s:FindDelimiterIndex(a:left, a:line)
let indxLeftAlt = s:FindDelimiterIndex(a:leftAlt, a:line)
let indxRight = s:LastIndexOfDelim(a:right, a:line)
let indxRightAlt = s:LastIndexOfDelim(a:rightAlt, a:line)
"check if the line has a left delim before a leftAlt delim
if (indxLeft <= indxLeftAlt || indxLeftAlt == -1) && indxLeft != -1
"check if the line has a right delim after any rightAlt delim
if (indxRight > indxRightAlt && indxRight > indxLeft) || !s:Multipart()
return 1
endif
"check if the line has a leftAlt delim before a left delim
elseif (indxLeftAlt <= indxLeft || indxLeft == -1) && indxLeftAlt != -1
"check if the line has a rightAlt delim after any right delim
if (indxRightAlt > indxRight && indxRightAlt > indxLeftAlt) || !s:AltMultipart()
return 2
endif
else
return 0
endif
return 0
endfunction
" Function: s:IsDelimValid(delimiter, delIndx, line) {{{2
" This function is responsible for determining whether a given instance of a
" comment delimiter is a real delimiter or not. For example, in java the
" // string is a comment delimiter but in the line:
" System.out.println("//");
" it does not count as a comment delimiter. This function is responsible for
" distinguishing between such cases. It does so by applying a set of
" heuristics that are not fool proof but should work most of the time.
"
" Args:
" -delimiter: the delimiter we are validating
" -delIndx: the position of delimiter in line
" -line: the line that delimiter occurs in
"
" Returns:
" 0 if the given delimiter is not a real delimiter (as far as we can tell) ,
" 1 otherwise
function s:IsDelimValid(delimiter, delIndx, line)
"get the delimiter without the escchars
let l:delimiter = a:delimiter
"get the strings before and after the delimiter
let preComStr = strpart(a:line, 0, a:delIndx)
let postComStr = strpart(a:line, a:delIndx+strlen(delimiter))
"to check if the delimiter is real, make sure it isnt preceded by
"an odd number of quotes and followed by the same (which would indicate
"that it is part of a string and therefore is not a comment)
if !s:IsNumEven(s:CountNonESCedOccurances(preComStr, '"', "\\")) && !s:IsNumEven(s:CountNonESCedOccurances(postComStr, '"', "\\"))
return 0
endif
if !s:IsNumEven(s:CountNonESCedOccurances(preComStr, "'", "\\")) && !s:IsNumEven(s:CountNonESCedOccurances(postComStr, "'", "\\"))
return 0
endif
if !s:IsNumEven(s:CountNonESCedOccurances(preComStr, "`", "\\")) && !s:IsNumEven(s:CountNonESCedOccurances(postComStr, "`", "\\"))
return 0
endif
"if the comment delimiter is escaped, assume it isnt a real delimiter
if s:IsEscaped(a:line, a:delIndx, "\\")
return 0
endif
"vim comments are so fuckin stupid!! Why the hell do they have comment
"delimiters that are used elsewhere in the syntax?!?! We need to check
"some conditions especially for vim
if &filetype == "vim"
if !s:IsNumEven(s:CountNonESCedOccurances(preComStr, '"', "\\"))
return 0
endif
"if the delimiter is on the very first char of the line or is the
"first non-tab/space char on the line then it is a valid comment delimiter
if a:delIndx == 0 || a:line =~ "^[ \t]\\{" . a:delIndx . "\\}\".*$"
return 1
endif
let numLeftParen =s:CountNonESCedOccurances(preComStr, "(", "\\")
let numRightParen =s:CountNonESCedOccurances(preComStr, ")", "\\")
"if the quote is inside brackets then assume it isnt a comment
if numLeftParen > numRightParen
return 0
endif
"if the line has an even num of unescaped "'s then we can assume that
"any given " is not a comment delimiter
if s:IsNumEven(s:CountNonESCedOccurances(a:line, "\"", "\\"))
return 0
endif
endif
return 1
endfunction
" Function: s:IsNumEven(num) {{{2
" A small function the returns 1 if the input number is even and 0 otherwise
" Args:
" -num: the number to check
function s:IsNumEven(num)
return (a:num % 2) == 0
endfunction
" Function: s:IsEscaped(str, indx, escChar) {{{2
" This function takes a string, an index into that string and an esc char and
" returns 1 if the char at the index is escaped (i.e if it is preceded by an
" odd number of esc chars)
" Args:
" -str: the string to check
" -indx: the index into str that we want to check
" -escChar: the escape char the char at indx may be ESCed with
function s:IsEscaped(str, indx, escChar)
"initialise numEscChars to 0 and look at the char before indx
let numEscChars = 0
let curIndx = a:indx-1
"keep going back thru str until we either reach the start of the str or
"run out of esc chars
while curIndx >= 0 && strpart(a:str, curIndx, 1) == a:escChar
"we have found another esc char so add one to the count and move left
"one char
let numEscChars = numEscChars + 1
let curIndx = curIndx - 1
endwhile
"if there is an odd num of esc chars directly before the char at indx then
"the char at indx is escaped
return !s:IsNumEven(numEscChars)
endfunction
" Function: s:IsInSexyComment(line) {{{2
" returns 1 if the given line number is part of a sexy comment
function s:IsInSexyComment(line)
return !empty(s:FindBoundingLinesOfSexyCom(a:line))
endfunction
" Function: s:IsSexyComment(topline, bottomline) {{{2
" This function takes in 2 line numbers and returns 1 if the lines between and
" including the given line numbers are a sexy comment. It returns 0 otherwise.
" Args:
" -topline: the line that the possible sexy comment starts on
" -bottomline: the line that the possible sexy comment stops on
function s:IsSexyComment(topline, bottomline)
"get the delim set that would be used for a sexy comment
let left = ''
let right = ''
if s:Multipart()
let left = s:Left()
let right = s:Right()
elseif s:AltMultipart()
let left = s:Left({'alt': 1})
let right = s:Right({'alt': 1})
else
return 0
endif
"swap the top and bottom line numbers around if need be
let topline = a:topline
let bottomline = a:bottomline
if bottomline < topline
topline = bottomline
bottomline = a:topline
endif
"if there is < 2 lines in the comment it cannot be sexy
if (bottomline - topline) <= 0
return 0
endif
"if the top line doesnt begin with a left delim then the comment isnt sexy
if getline(a:topline) !~ '^[ \t]*' . left
return 0
endif
"if there is a right delim on the top line then this isnt a sexy comment
if s:FindDelimiterIndex(right, getline(a:topline)) != -1
return 0
endif
"if there is a left delim on the bottom line then this isnt a sexy comment
if s:FindDelimiterIndex(left, getline(a:bottomline)) != -1
return 0
endif
"if the bottom line doesnt begin with a right delim then the comment isnt
"sexy
if getline(a:bottomline) !~ '^.*' . right . '$'
return 0
endif
let sexyComMarker = s:GetSexyComMarker(0, 1)
"check each of the intermediate lines to make sure they start with a
"sexyComMarker
let currentLine = a:topline+1
while currentLine < a:bottomline
let theLine = getline(currentLine)
if theLine !~ '^[ \t]*' . sexyComMarker
return 0
endif
"if there is a right delim in an intermediate line then the block isnt
"a sexy comment
if s:FindDelimiterIndex(right, theLine) != -1
return 0
endif
let currentLine = currentLine + 1
endwhile
"we have not found anything to suggest that this isnt a sexy comment so
return 1
endfunction
" Function: s:LastIndexOfDelim(delim, str) {{{2
" This function takes a string and a delimiter and returns the last index of
" that delimiter in string
" Args:
" -delim: the delimiter to look for
" -str: the string to look for delim in
function s:LastIndexOfDelim(delim, str)
let delim = a:delim
let lenDelim = strlen(delim)
"set index to the first occurrence of delim. If there is no occurrence then
"bail
let indx = s:FindDelimiterIndex(delim, a:str)
if indx == -1
return -1
endif
"keep moving to the next instance of delim in str till there is none left
while 1
"search for the next delim after the previous one
let searchStr = strpart(a:str, indx+lenDelim)
let indx2 = s:FindDelimiterIndex(delim, searchStr)
"if we find a delim update indx to record the position of it, if we
"dont find another delim then indx is the last one so break out of
"this loop
if indx2 != -1
let indx = indx + indx2 + lenDelim
else
break
endif
endwhile
return indx
endfunction
" Function: s:Left(...) {{{2
" returns left delimiter data
function s:Left(...)
let params = a:0 ? a:1 : {}
let delim = has_key(params, 'alt') ? b:NERDCommenterDelims['leftAlt'] : b:NERDCommenterDelims['left']
if delim == ''
return ''
endif
if has_key(params, 'space') && g:NERDSpaceDelims
let delim = delim . s:spaceStr
endif
if has_key(params, 'esc')
let delim = s:Esc(delim)
endif
return delim
endfunction
" Function: s:LeftMostIndx(countCommentedLines, countEmptyLines, topline, bottomline) {{{2
" This function takes in 2 line numbers and returns the index of the left most
" char (that is not a space or a tab) on all of these lines.
" Args:
" -countCommentedLines: 1 if lines that are commented are to be checked as
" well. 0 otherwise
" -countEmptyLines: 1 if empty lines are to be counted in the search
" -topline: the top line to be checked
" -bottomline: the bottom line to be checked
function s:LeftMostIndx(countCommentedLines, countEmptyLines, topline, bottomline)
" declare the left most index as an extreme value
let leftMostIndx = 1000
" go thru the block line by line updating leftMostIndx
let currentLine = a:topline
while currentLine <= a:bottomline
" get the next line and if it is allowed to be commented, or is not
" commented, check it
let theLine = getline(currentLine)
if a:countEmptyLines || theLine !~ '^[ \t]*$'
if a:countCommentedLines || (!s:IsCommented(s:Left(), s:Right(), theLine) && !s:IsCommented(s:Left({'alt': 1}), s:Right({'alt': 1}), theLine))
" convert spaces to tabs and get the number of leading spaces for
" this line and update leftMostIndx if need be
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
let leadSpaceOfLine = strlen( substitute(theLine, '\(^[ \t]*\).*$','\1','') )
if leadSpaceOfLine < leftMostIndx
let leftMostIndx = leadSpaceOfLine
endif
endif
endif
" move on to the next line
let currentLine = currentLine + 1
endwhile
if leftMostIndx == 1000
return 0
else
return leftMostIndx
endif
endfunction
" Function: s:Multipart() {{{2
" returns 1 if the current delims are multipart
function s:Multipart()
return s:Right() != ''
endfunction
" Function: s:NerdEcho(msg, typeOfMsg) {{{2
" Args:
" -msg: the message to echo
" -typeOfMsg: 0 = warning message
" 1 = normal message
function s:NerdEcho(msg, typeOfMsg)
if a:typeOfMsg == 0
echohl WarningMsg
echom 'NERDCommenter:' . a:msg
echohl None
elseif a:typeOfMsg == 1
echom 'NERDCommenter:' . a:msg
endif
endfunction
" Function: s:NumberOfLeadingTabs(s) {{{2
" returns the number of leading tabs in the given string
function s:NumberOfLeadingTabs(s)
return strlen(substitute(a:s, '^\(\t*\).*$', '\1', ""))
endfunction
" Function: s:NumLinesInBuf() {{{2
" Returns the number of lines in the current buffer
function s:NumLinesInBuf()
return line('$')
endfunction
" Function: s:ReplaceDelims(toReplace1, toReplace2, replacor1, replacor2, str) {{{2
" This function takes in a string, 2 delimiters in that string and 2 strings
" to replace these delimiters with.
"
" Args:
" -toReplace1: the first delimiter to replace
" -toReplace2: the second delimiter to replace
" -replacor1: the string to replace toReplace1 with
" -replacor2: the string to replace toReplace2 with
" -str: the string that the delimiters to be replaced are in
function s:ReplaceDelims(toReplace1, toReplace2, replacor1, replacor2, str)
let line = s:ReplaceLeftMostDelim(a:toReplace1, a:replacor1, a:str)
let line = s:ReplaceRightMostDelim(a:toReplace2, a:replacor2, line)
return line
endfunction
" Function: s:ReplaceLeftMostDelim(toReplace, replacor, str) {{{2
" This function takes a string and a delimiter and replaces the left most
" occurrence of this delimiter in the string with a given string
"
" Args:
" -toReplace: the delimiter in str that is to be replaced
" -replacor: the string to replace toReplace with
" -str: the string that contains toReplace
function s:ReplaceLeftMostDelim(toReplace, replacor, str)
let toReplace = a:toReplace
let replacor = a:replacor
"get the left most occurrence of toReplace
let indxToReplace = s:FindDelimiterIndex(toReplace, a:str)
"if there IS an occurrence of toReplace in str then replace it and return
"the resulting string
if indxToReplace != -1
let line = strpart(a:str, 0, indxToReplace) . replacor . strpart(a:str, indxToReplace+strlen(toReplace))
return line
endif
return a:str
endfunction
" Function: s:ReplaceRightMostDelim(toReplace, replacor, str) {{{2
" This function takes a string and a delimiter and replaces the right most
" occurrence of this delimiter in the string with a given string
"
" Args:
" -toReplace: the delimiter in str that is to be replaced
" -replacor: the string to replace toReplace with
" -str: the string that contains toReplace
"
function s:ReplaceRightMostDelim(toReplace, replacor, str)
let toReplace = a:toReplace
let replacor = a:replacor
let lenToReplace = strlen(toReplace)
"get the index of the last delim in str
let indxToReplace = s:LastIndexOfDelim(toReplace, a:str)
"if there IS a delimiter in str, replace it and return the result
let line = a:str
if indxToReplace != -1
let line = strpart(a:str, 0, indxToReplace) . replacor . strpart(a:str, indxToReplace+strlen(toReplace))
endif
return line
endfunction
"FUNCTION: s:RestoreScreenState() {{{2
"
"Sets the screen state back to what it was when s:SaveScreenState was last
"called.
"
function s:RestoreScreenState()
if !exists("t:NERDComOldTopLine") || !exists("t:NERDComOldPos")
throw 'NERDCommenter exception: cannot restore screen'
endif
call cursor(t:NERDComOldTopLine, 0)
normal! zt
call setpos(".", t:NERDComOldPos)
endfunction
" Function: s:Right(...) {{{2
" returns right delimiter data
function s:Right(...)
let params = a:0 ? a:1 : {}
let delim = has_key(params, 'alt') ? b:NERDCommenterDelims['rightAlt'] : b:NERDCommenterDelims['right']
if delim == ''
return ''
endif
if has_key(params, 'space') && g:NERDSpaceDelims
let delim = s:spaceStr . delim
endif
if has_key(params, 'esc')
let delim = s:Esc(delim)
endif
return delim
endfunction
" Function: s:RightMostIndx(countCommentedLines, countEmptyLines, topline, bottomline) {{{2
" This function takes in 2 line numbers and returns the index of the right most
" char on all of these lines.
" Args:
" -countCommentedLines: 1 if lines that are commented are to be checked as
" well. 0 otherwise
" -countEmptyLines: 1 if empty lines are to be counted in the search
" -topline: the top line to be checked
" -bottomline: the bottom line to be checked
function s:RightMostIndx(countCommentedLines, countEmptyLines, topline, bottomline)
let rightMostIndx = -1
" go thru the block line by line updating rightMostIndx
let currentLine = a:topline
while currentLine <= a:bottomline
" get the next line and see if it is commentable, otherwise it doesnt
" count
let theLine = getline(currentLine)
if a:countEmptyLines || theLine !~ '^[ \t]*$'
if a:countCommentedLines || (!s:IsCommented(s:Left(), s:Right(), theLine) && !s:IsCommented(s:Left({'alt': 1}), s:Right({'alt': 1}), theLine))
" update rightMostIndx if need be
let theLine = s:ConvertLeadingTabsToSpaces(theLine)
let lineLen = strlen(theLine)
if lineLen > rightMostIndx
let rightMostIndx = lineLen
endif
endif
endif
" move on to the next line
let currentLine = currentLine + 1
endwhile
return rightMostIndx
endfunction
"FUNCTION: s:SaveScreenState() {{{2
"Saves the current cursor position in the current buffer and the window
"scroll position
function s:SaveScreenState()
let t:NERDComOldPos = getpos(".")
let t:NERDComOldTopLine = line("w0")
endfunction
" Function: s:SwapOutterMultiPartDelimsForPlaceHolders(line) {{{2
" This function takes a line and swaps the outter most multi-part delims for
" place holders
" Args:
" -line: the line to swap the delims in
"
function s:SwapOutterMultiPartDelimsForPlaceHolders(line)
" find out if the line is commented using normal delims and/or
" alternate ones
let isCommented = s:IsCommented(s:Left(), s:Right(), a:line)
let isCommentedAlt = s:IsCommented(s:Left({'alt': 1}), s:Right({'alt': 1}), a:line)
let line2 = a:line
"if the line is commented and there is a right delimiter, replace
"the delims with place-holders
if isCommented && s:Multipart()
let line2 = s:ReplaceDelims(s:Left(), s:Right(), g:NERDLPlace, g:NERDRPlace, a:line)
"similarly if the line is commented with the alternative
"delimiters
elseif isCommentedAlt && s:AltMultipart()
let line2 = s:ReplaceDelims(s:Left({'alt': 1}), s:Right({'alt': 1}), g:NERDLPlace, g:NERDRPlace, a:line)
endif
return line2
endfunction
" Function: s:SwapOutterPlaceHoldersForMultiPartDelims(line) {{{2
" This function takes a line and swaps the outtermost place holders for
" multi-part delims
" Args:
" -line: the line to swap the delims in
"
function s:SwapOutterPlaceHoldersForMultiPartDelims(line)
let left = ''
let right = ''
if s:Multipart()
let left = s:Left()
let right = s:Right()
elseif s:AltMultipart()
let left = s:Left({'alt': 1})
let right = s:Right({'alt': 1})
endif
let line = s:ReplaceDelims(g:NERDLPlace, g:NERDRPlace, left, right, a:line)
return line
endfunction
" Function: s:TabbedCol(line, col) {{{2
" Gets the col number for given line and existing col number. The new col
" number is the col number when all leading spaces are converted to tabs
" Args:
" -line:the line to get the rel col for
" -col: the abs col
function s:TabbedCol(line, col)
let lineTruncated = strpart(a:line, 0, a:col)
let lineSpacesToTabs = substitute(lineTruncated, s:TabSpace(), '\t', 'g')
return strlen(lineSpacesToTabs)
endfunction
"FUNCTION: s:TabSpace() {{{2
"returns a string of spaces equal in length to &tabstop
function s:TabSpace()
let tabSpace = ""
let spacesPerTab = &tabstop
while spacesPerTab > 0
let tabSpace = tabSpace . " "
let spacesPerTab = spacesPerTab - 1
endwhile
return tabSpace
endfunction
" Function: s:UnEsc(str, escChar) {{{2
" This function removes all the escape chars from a string
" Args:
" -str: the string to remove esc chars from
" -escChar: the escape char to be removed
function s:UnEsc(str, escChar)
return substitute(a:str, a:escChar, "", "g")
endfunction
" Function: s:UntabbedCol(line, col) {{{2
" Takes a line and a col and returns the absolute column of col taking into
" account that a tab is worth 3 or 4 (or whatever) spaces.
" Args:
" -line:the line to get the abs col for
" -col: the col that doesnt take into account tabs
function s:UntabbedCol(line, col)
let lineTruncated = strpart(a:line, 0, a:col)
let lineTabsToSpaces = substitute(lineTruncated, '\t', s:TabSpace(), 'g')
return strlen(lineTabsToSpaces)
endfunction
" Section: Comment mapping setup {{{1
" ===========================================================================
" switch to/from alternative delimiters
nnoremap <plug>NERDCommenterAltDelims :call <SID>SwitchToAlternativeDelimiters(1)<cr>
" comment out lines
nnoremap <silent> <plug>NERDCommenterComment :call NERDComment(0, "norm")<cr>
vnoremap <silent> <plug>NERDCommenterComment <ESC>:call NERDComment(1, "norm")<cr>
" toggle comments
nnoremap <silent> <plug>NERDCommenterToggle :call NERDComment(0, "toggle")<cr>
vnoremap <silent> <plug>NERDCommenterToggle <ESC>:call NERDComment(1, "toggle")<cr>
" minimal comments
nnoremap <silent> <plug>NERDCommenterMinimal :call NERDComment(0, "minimal")<cr>
vnoremap <silent> <plug>NERDCommenterMinimal <ESC>:call NERDComment(1, "minimal")<cr>
" sexy comments
nnoremap <silent> <plug>NERDCommenterSexy :call NERDComment(0, "sexy")<CR>
vnoremap <silent> <plug>NERDCommenterSexy <ESC>:call NERDComment(1, "sexy")<CR>
" invert comments
nnoremap <silent> <plug>NERDCommenterInvert :call NERDComment(0, "invert")<CR>
vnoremap <silent> <plug>NERDCommenterInvert <ESC>:call NERDComment(1, "invert")<CR>
" yank then comment
nmap <silent> <plug>NERDCommenterYank :call NERDComment(0, "yank")<CR>
vmap <silent> <plug>NERDCommenterYank <ESC>:call NERDComment(1, "yank")<CR>
" left aligned comments
nnoremap <silent> <plug>NERDCommenterAlignLeft :call NERDComment(0, "alignLeft")<cr>
vnoremap <silent> <plug>NERDCommenterAlignLeft <ESC>:call NERDComment(1, "alignLeft")<cr>
" left and right aligned comments
nnoremap <silent> <plug>NERDCommenterAlignBoth :call NERDComment(0, "alignBoth")<cr>
vnoremap <silent> <plug>NERDCommenterAlignBoth <ESC>:call NERDComment(1, "alignBoth")<cr>
" nested comments
nnoremap <silent> <plug>NERDCommenterNest :call NERDComment(0, "nested")<cr>
vnoremap <silent> <plug>NERDCommenterNest <ESC>:call NERDComment(1, "nested")<cr>
" uncomment
nnoremap <silent> <plug>NERDCommenterUncomment :call NERDComment(0, "uncomment")<cr>
vnoremap <silent> <plug>NERDCommenterUncomment :call NERDComment(1, "uncomment")<cr>
" comment till the end of the line
nnoremap <silent> <plug>NERDCommenterToEOL :call NERDComment(0, "toEOL")<cr>
" append comments
nmap <silent> <plug>NERDCommenterAppend :call NERDComment(0, "append")<cr>
" insert comments
inoremap <silent> <plug>NERDCommenterInInsert <SPACE><BS><ESC>:call NERDComment(0, "insert")<CR>
function! s:CreateMaps(target, combo)
if !hasmapto(a:target, 'n')
exec 'nmap ' . a:combo . ' ' . a:target
endif
if !hasmapto(a:target, 'v')
exec 'vmap ' . a:combo . ' ' . a:target
endif
endfunction
if g:NERDCreateDefaultMappings
call s:CreateMaps('<plug>NERDCommenterComment', '<leader>cc')
call s:CreateMaps('<plug>NERDCommenterToggle', '<leader>c<space>')
call s:CreateMaps('<plug>NERDCommenterMinimal', '<leader>cm')
call s:CreateMaps('<plug>NERDCommenterSexy', '<leader>cs')
call s:CreateMaps('<plug>NERDCommenterInvert', '<leader>ci')
call s:CreateMaps('<plug>NERDCommenterYank', '<leader>cy')
call s:CreateMaps('<plug>NERDCommenterAlignLeft', '<leader>cl')
call s:CreateMaps('<plug>NERDCommenterAlignBoth', '<leader>cb')
call s:CreateMaps('<plug>NERDCommenterNest', '<leader>cn')
call s:CreateMaps('<plug>NERDCommenterUncomment', '<leader>cu')
call s:CreateMaps('<plug>NERDCommenterToEOL', '<leader>c$')
call s:CreateMaps('<plug>NERDCommenterAppend', '<leader>cA')
if !hasmapto('<plug>NERDCommenterAltDelims', 'n')
nmap <leader>ca <plug>NERDCommenterAltDelims
endif
endif
" Section: Menu item setup {{{1
" ===========================================================================
"check if the user wants the menu to be displayed
if g:NERDMenuMode != 0
let menuRoot = ""
if g:NERDMenuMode == 1
let menuRoot = 'comment'
elseif g:NERDMenuMode == 2
let menuRoot = '&comment'
elseif g:NERDMenuMode == 3
let menuRoot = '&Plugin.&comment'
endif
function! s:CreateMenuItems(target, desc, root)
exec 'nmenu <silent> ' . a:root . '.' . a:desc . ' ' . a:target
exec 'vmenu <silent> ' . a:root . '.' . a:desc . ' ' . a:target
endfunction
call s:CreateMenuItems("<plug>NERDCommenterComment", 'Comment', menuRoot)
call s:CreateMenuItems("<plug>NERDCommenterToggle", 'Toggle', menuRoot)
call s:CreateMenuItems('<plug>NERDCommenterMinimal', 'Minimal', menuRoot)
call s:CreateMenuItems('<plug>NERDCommenterNest', 'Nested', menuRoot)
exec 'nmenu <silent> '. menuRoot .'.To\ EOL <plug>NERDCommenterToEOL'
call s:CreateMenuItems('<plug>NERDCommenterInvert', 'Invert', menuRoot)
call s:CreateMenuItems('<plug>NERDCommenterSexy', 'Sexy', menuRoot)
call s:CreateMenuItems('<plug>NERDCommenterYank', 'Yank\ then\ comment', menuRoot)
exec 'nmenu <silent> '. menuRoot .'.Append <plug>NERDCommenterAppend'
exec 'menu <silent> '. menuRoot .'.-Sep- :'
call s:CreateMenuItems('<plug>NERDCommenterAlignLeft', 'Left\ aligned', menuRoot)
call s:CreateMenuItems('<plug>NERDCommenterAlignBoth', 'Left\ and\ right\ aligned', menuRoot)
exec 'menu <silent> '. menuRoot .'.-Sep2- :'
call s:CreateMenuItems('<plug>NERDCommenterUncomment', 'Uncomment', menuRoot)
exec 'nmenu <silent> '. menuRoot .'.Switch\ Delimiters <plug>NERDCommenterAltDelims'
exec 'imenu <silent> '. menuRoot .'.Insert\ Comment\ Here <plug>NERDCommenterInInsert'
exec 'menu <silent> '. menuRoot .'.-Sep3- :'
exec 'menu <silent>'. menuRoot .'.Help :help NERDCommenterContents<CR>'
endif
" vim: set foldmethod=marker :
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