2018-10-23 commit, with vim-pathogen

CSApprox.vim

@@ -0,0 +1,921 @@
+" CSApprox:    Make gvim-only colorschemes Just Work terminal vim
+" Maintainer:  Matthew Wozniski (godlygeek@gmail.com)
+" Date:        Fri, 14 Sep 2012 01:12:13 -0400
+" Version:     4.00
+" History:     :help csapprox-changelog
+"
+" Long Description:
+" It's hard to find colorschemes for terminal Vim.  Most colorschemes are
+" written to only support GVim, and don't work at all in terminal Vim.
+"
+" This plugin makes GVim-only colorschemes Just Work in terminal Vim, as long
+" as the terminal supports 88 or 256 colors - and most do these days.  This
+" usually requires no user interaction (but see below for what to do if things
+" don't Just Work).  After getting this plugin happily installed, any time you
+" use :colorscheme it will do its magic and make the colorscheme Just Work.
+"
+" Whenever you change colorschemes using the :colorscheme command this script
+" will be executed.  It will take the colors that the scheme specified for use
+" in the GUI and use an approximation algorithm to try to gracefully degrade
+" them to the closest color available in your terminal.  If you are running in
+" a GUI or if your terminal doesn't support 88 or 256 colors, no changes are
+" made.  Also, no changes will be made if the colorscheme seems to have been
+" high color already.
+"
+" License:
+" Copyright (c) 2012, Matthew J. Wozniski
+" All rights reserved.
+"
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are met:
+"     * Redistributions of source code must retain the above copyright
+"       notice, this list of conditions and the following disclaimer.
+"     * Redistributions in binary form must reproduce the above copyright
+"       notice, this list of conditions and the following disclaimer in the
+"       documentation and/or other materials provided with the distribution.
+"     * The names of the contributors may not be used to endorse or promote
+"       products derived from this software without specific prior written
+"       permission.
+"
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
+" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+" {>1} Basic plugin setup
+
+" {>2} Check preconditions
+" Quit if the user doesn't want or need us or is missing the gui feature.  We
+" need +gui to be able to check the gui color settings; vim doesn't bother to
+" store them if it is not built with +gui.
+if exists('g:CSApprox_loaded')
+  finish
+elseif !has('gui') && v:version < 703
+  " Vim versions less than < 7.3.0 need +gui.
+  " Warn unless the user set g:CSApprox_verbose_level to zero.
+  if get(g:, 'CSApprox_verbose_level', 1)
+    echomsg "CSApprox needs gui support - not loading."
+    echomsg "  See :help |csapprox-+gui| for possible workarounds."
+  endif
+
+  finish
+endif
+
+" {1} Mark us as loaded, and disable all compatibility options for now.
+let g:CSApprox_loaded = 1
+
+let s:savecpo = &cpo
+set cpo&vim
+
+" {>1} Collect info for the set highlights
+
+" {>2} Determine if synIDattr is usable
+" synIDattr() couldn't support 'guisp' until 7.2.052.  This function returns
+" true if :redir is needed to find the 'guisp' attribute, false if synIDattr()
+" is functional.  This test can be overridden by setting the global variable
+" g:CSApprox_redirfallback to 1 (to force use of :redir) or to 0 (to force use
+" of synIDattr()).
+function! s:NeedRedirFallback()
+  if !exists("g:CSApprox_redirfallback")
+    let g:CSApprox_redirfallback = (v:version == 702 && !has('patch52'))
+                                 \  || v:version < 702
+  endif
+  return g:CSApprox_redirfallback
+endfunction
+
+" {>2} Collect and store the highlights
+" Get a dictionary containing information for every highlight group not merely
+" linked to another group.  Return value is a dictionary, with highlight group
+" numbers for keys and values that are dictionaries with four keys each,
+" 'name', 'term', 'cterm', and 'gui'.  'name' holds the group name, and each
+" of the others holds highlight information for that particular mode.
+function! s:Highlights(modes)
+  let rv = {}
+
+  let i = 0
+  while 1
+    let i += 1
+
+    " Only interested in groups that exist and aren't linked
+    if synIDtrans(i) == 0
+      break
+    endif
+
+    " Handle vim bug allowing groups with name == "" to be created
+    if synIDtrans(i) != i || len(synIDattr(i, "name")) == 0
+      continue
+    endif
+
+    let rv[i] = {}
+    let rv[i].name = synIDattr(i, "name")
+
+    for where in a:modes
+      let rv[i][where]  = {}
+      for attr in s:PossibleAttributes()
+        let rv[i][where][attr] = synIDattr(i, attr, where)
+      endfor
+
+      for attr in [ "fg", "bg" ]
+        let rv[i][where][attr] = synIDattr(i, attr.'#', where)
+      endfor
+
+      if where == "gui"
+        let rv[i][where]["sp"] = s:SynGuiSp(i, rv[i].name)
+      else
+        let rv[i][where]["sp"] = -1
+      endif
+
+      for attr in [ "fg", "bg", "sp" ]
+        if rv[i][where][attr] == -1
+          let rv[i][where][attr] = ''
+        endif
+      endfor
+    endfor
+  endwhile
+
+  return rv
+endfunction
+
+" {>2} Retrieve guisp
+
+" Get guisp using whichever method is specified by _redir_fallback
+function! s:SynGuiSp(idx, name)
+  if !s:NeedRedirFallback()
+    return s:SynGuiSpAttr(a:idx)
+  else
+    return s:SynGuiSpRedir(a:name)
+  endif
+endfunction
+
+" {>3} Implementation for retrieving guisp with redir hack
+function! s:SynGuiSpRedir(name)
+  redir => temp
+  exe 'sil hi ' . a:name
+  redir END
+  let temp = matchstr(temp, 'guisp=\zs.*')
+  if len(temp) == 0 || temp[0] =~ '\s'
+    let temp = ""
+  else
+    " Make sure we can handle guisp='dark red'
+    let temp = substitute(temp, '[\x00].*', '', '')
+    let temp = substitute(temp, '\s*\(c\=term\|gui\).*', '', '')
+    let temp = substitute(temp, '\s*$', '', '')
+  endif
+  return temp
+endfunction
+
+" {>3} Implementation for retrieving guisp with synIDattr()
+function! s:SynGuiSpAttr(idx)
+  return synIDattr(a:idx, 'sp#', 'gui')
+endfunction
+
+" {>1} Handle color names
+
+" Place to store rgb.txt name to color mappings - lazy loaded if needed
+let s:rgb = {}
+
+" {>2} Builtin gui color names
+" gui_x11.c and gui_gtk_x11.c have some default colors names that are searched
+" if the x server doesn't know about a color.  If 'showrgb' is available,
+" we'll default to using these color names and values, and overwrite them with
+" other values if 'showrgb' tells us about those colors.
+let s:rgb_defaults = { "lightred"     : "#FFBBBB",
+                     \ "lightgreen"   : "#88FF88",
+                     \ "lightmagenta" : "#FFBBFF",
+                     \ "darkcyan"     : "#008888",
+                     \ "darkblue"     : "#0000BB",
+                     \ "darkred"      : "#BB0000",
+                     \ "darkmagenta"  : "#BB00BB",
+                     \ "darkgrey"     : "#BBBBBB",
+                     \ "darkyellow"   : "#BBBB00",
+                     \ "gray10"       : "#1A1A1A",
+                     \ "grey10"       : "#1A1A1A",
+                     \ "gray20"       : "#333333",
+                     \ "grey20"       : "#333333",
+                     \ "gray30"       : "#4D4D4D",
+                     \ "grey30"       : "#4D4D4D",
+                     \ "gray40"       : "#666666",
+                     \ "grey40"       : "#666666",
+                     \ "gray50"       : "#7F7F7F",
+                     \ "grey50"       : "#7F7F7F",
+                     \ "gray60"       : "#999999",
+                     \ "grey60"       : "#999999",
+                     \ "gray70"       : "#B3B3B3",
+                     \ "grey70"       : "#B3B3B3",
+                     \ "gray80"       : "#CCCCCC",
+                     \ "grey80"       : "#CCCCCC",
+                     \ "gray90"       : "#E5E5E5",
+                     \ "grey90"       : "#E5E5E5" }
+
+" {>2} Colors that vim will use by name in one of the default schemes, either
+" for bg=light or for bg=dark.  This lets us avoid loading the entire rgb.txt
+" database when the scheme itself doesn't ask for colors by name.
+let s:rgb_presets = { "black"         : "#000000",
+                     \ "blue"         : "#0000ff",
+                     \ "brown"        : "#a52a2a",
+                     \ "cyan"         : "#00ffff",
+                     \ "darkblue"     : "#00008b",
+                     \ "darkcyan"     : "#008b8b",
+                     \ "darkgrey"     : "#a9a9a9",
+                     \ "darkmagenta"  : "#8b008b",
+                     \ "green"        : "#00ff00",
+                     \ "grey"         : "#bebebe",
+                     \ "grey40"       : "#666666",
+                     \ "grey90"       : "#e5e5e5",
+                     \ "lightblue"    : "#add8e6",
+                     \ "lightcyan"    : "#e0ffff",
+                     \ "lightgrey"    : "#d3d3d3",
+                     \ "lightmagenta" : "#ffbbff",
+                     \ "magenta"      : "#ff00ff",
+                     \ "red"          : "#ff0000",
+                     \ "seagreen"     : "#2e8b57",
+                     \ "white"        : "#ffffff",
+                     \ "yellow"       : "#ffff00" }
+
+" {>2} Find available color names
+" Find the valid named colors.  By default, use our own rgb list, but try to
+" retrieve the system's list if g:CSApprox_use_showrgb is set to true.  Store
+" the color names and color values to the dictionary s:rgb - the keys are
+" color names (in lowercase), the values are strings representing color values
+" (as '#rrggbb').
+function! s:UpdateRgbHash()
+  try
+    if !exists("g:CSApprox_use_showrgb") || !g:CSApprox_use_showrgb
+      throw "Not using showrgb"
+    endif
+
+    " We want to use the 'showrgb' program, if it's around
+    let lines = split(system('showrgb'), '\n')
+
+    if v:shell_error || !exists('lines') || empty(lines)
+      throw "'showrgb' didn't give us an rgb.txt"
+    endif
+
+    let s:rgb = copy(s:rgb_defaults)
+
+    " fmt is (blanks?)(red)(blanks)(green)(blanks)(blue)(blanks)(name)
+    let parsepat  = '^\s*\(\d\+\)\s\+\(\d\+\)\s\+\(\d\+\)\s\+\(.*\)$'
+
+    for line in lines
+      let v = matchlist(line, parsepat)
+      if len(v) < 0
+        throw "CSApprox: Bad RGB line: " . string(line)
+      endif
+      let s:rgb[tolower(v[4])] = printf("#%02x%02x%02x", v[1], v[2], v[3])
+    endfor
+  catch
+    try
+      let s:rgb = csapprox#rgb()
+    catch
+      echohl ErrorMsg
+      echomsg "Can't call rgb() from autoload/csapprox.vim"
+      echomsg "Named colors will not be available!"
+      echohl None
+    endtry
+  endtry
+
+  return 0
+endfunction
+
+" {>1} Derive and set cterm attributes
+
+" {>2} List of all possible attributes
+function! s:PossibleAttributes()
+  return [ "bold", "italic", "reverse", "underline", "undercurl" ]
+endfunction
+
+" {>2} Attribute overrides
+" Allow the user to override a specified attribute with another attribute.
+" For example, the default is to map 'italic' to 'underline' (since many
+" terminals cannot display italic text, and gvim itself will replace italics
+" with underlines where italicizing is impossible), and to replace 'sp' with
+" 'fg' (since terminals can't use one color for the underline and another for
+" the foreground, we color the entire word).  This default can of course be
+" overridden by the user, by setting g:CSApprox_attr_map.  This map must be
+" a dictionary of string keys, representing the same attributes that synIDattr
+" can look up, to string values, representing the attribute mapped to or an
+" empty string to disable the given attribute entirely.
+function! s:attr_map(attr)
+  let rv = get(g:CSApprox_attr_map, a:attr, a:attr)
+
+  return rv
+endfunction
+
+function! s:NormalizeAttrMap(map)
+  let old = copy(a:map)
+  let new = filter(a:map, '0')
+
+  let valid_attrs = [ 'bg', 'fg', 'sp' ] + s:PossibleAttributes()
+
+  let colorattrs = [ 'fg', 'bg', 'sp' ]
+
+  for olhs in keys(old)
+    if olhs ==? 'inverse'
+      let nlhs = 'reverse'
+    endif
+
+    let orhs = old[olhs]
+
+    if orhs ==? 'inverse'
+      let nrhs = 'reverse'
+    endif
+
+    let nlhs = tolower(olhs)
+    let nrhs = tolower(orhs)
+
+    try
+      if index(valid_attrs, nlhs) == -1
+        echomsg "CSApprox: Bad attr map (removing unrecognized attribute " . olhs . ")"
+      elseif nrhs != '' && index(valid_attrs, nrhs) == -1
+        echomsg "CSApprox: Bad attr map (removing unrecognized attribute " . orhs . ")"
+      elseif nrhs != '' && !!(index(colorattrs, nlhs)+1) != !!(index(colorattrs, nrhs)+1)
+        echomsg "CSApprox: Bad attr map (removing " . olhs . "; type mismatch with " . orhs . ")"
+      elseif nrhs == 'sp'
+        echomsg "CSApprox: Bad attr map (removing " . olhs . "; can't map to 'sp')"
+      else
+        let new[nlhs] = nrhs
+      endif
+    catch
+      echo v:exception
+    endtry
+  endfor
+endfunction
+
+" {>2} Normalize the GUI settings of a highlight group
+" If the Normal group is cleared, set it to gvim's default, black on white
+" Though this would be a really weird thing for a scheme to do... *shrug*
+function! s:FixupGuiInfo(highlights)
+  if a:highlights[s:hlid_normal].gui.bg == ''
+    let a:highlights[s:hlid_normal].gui.bg = 'white'
+  endif
+
+  if a:highlights[s:hlid_normal].gui.fg == ''
+    let a:highlights[s:hlid_normal].gui.fg = 'black'
+  endif
+endfunction
+
+" {>2} Map gui settings to cterm settings
+" Given information about a highlight group, replace the cterm settings with
+" the mapped gui settings, applying any attribute overrides along the way.  In
+" particular, this gives special treatment to the 'reverse' attribute and the
+" 'guisp' attribute.  In particular, if the 'reverse' attribute is set for
+" gvim, we unset it for the terminal and instead set ctermfg to match guibg
+" and vice versa, since terminals can consider a 'reverse' flag to mean using
+" default-bg-on-default-fg instead of current-bg-on-current-fg.  We also
+" ensure that the 'sp' attribute is never set for cterm, since no terminal can
+" handle that particular highlight.  If the user wants to display the guisp
+" color, he should map it to either 'fg' or 'bg' using g:CSApprox_attr_map.
+function! s:FixupCtermInfo(highlights)
+  for hl in values(a:highlights)
+
+    if !has_key(hl, 'cterm')
+      let hl["cterm"] = {}
+    endif
+
+    " Find attributes to be set in the terminal
+    for attr in s:PossibleAttributes()
+      let hl.cterm[attr] = ''
+      if hl.gui[attr] == 1
+        if s:attr_map(attr) != ''
+          let hl.cterm[ s:attr_map(attr) ] = 1
+        endif
+      endif
+    endfor
+
+    for color in [ "bg", "fg" ]
+      let eff_color = color
+      if hl.cterm['reverse']
+        let eff_color = (color == 'bg' ? 'fg' : 'bg')
+      endif
+
+      let hl.cterm[color] = get(hl.gui, s:attr_map(eff_color), '')
+    endfor
+
+    if hl.gui['sp'] != '' && s:attr_map('sp') != ''
+      let hl.cterm[s:attr_map('sp')] = hl.gui['sp']
+    endif
+
+    if exists("g:CSApprox_fake_reverse") && g:CSApprox_fake_reverse
+      if hl.cterm['reverse'] && hl.cterm.bg == ''
+        let hl.cterm.bg = 'fg'
+      endif
+
+      if hl.cterm['reverse'] && hl.cterm.fg == ''
+        let hl.cterm.fg = 'bg'
+      endif
+
+      if hl.cterm['reverse']
+        let hl.cterm.reverse = ''
+      endif
+    endif
+  endfor
+endfunction
+
+" {>2} Kludge around inability to reference autoload functions
+function! s:DefaultApproximator(...)
+  return call('csapprox#per_component#Approximate', a:000)
+endfunction
+
+" {>2} Set cterm colors for a highlight group
+" Given the information for a single highlight group (ie, the value of
+" one of the items in s:Highlights() already normalized with s:FixupCtermInfo
+" and s:FixupGuiInfo), handle matching the gvim colors to the closest cterm
+" colors by calling the appropriate approximator as specified with the
+" g:CSApprox_approximator_function variable and set the colors and attributes
+" appropriately to match the gui.
+function! s:SetCtermFromGui(hl)
+  let hl = a:hl
+
+  " Set up the default approximator function, if needed
+  if !exists("g:CSApprox_approximator_function")
+    let g:CSApprox_approximator_function = function("s:DefaultApproximator")
+  endif
+
+  " Clear existing highlights
+  exe 'hi ' . hl.name . ' cterm=NONE ctermbg=NONE ctermfg=NONE'
+
+  for which in [ 'bg', 'fg' ]
+    let val = hl.cterm[which]
+
+    " Skip unset colors
+    if val == -1 || val == ""
+      continue
+    endif
+
+    " Try translating anything but 'fg', 'bg', #rrggbb, and rrggbb from an
+    " rgb.txt color to a #rrggbb color
+    if val !~? '^[fb]g$' && val !~ '^#\=\x\{6}$'
+      try
+        " First see if it is in our preset-by-vim rgb list
+        let val = s:rgb_presets[tolower(val)]
+      catch
+        " Then try loading and checking our real rgb list
+        if empty(s:rgb)
+          call s:UpdateRgbHash()
+        endif
+        try
+          let val = s:rgb[tolower(val)]
+        catch
+          " And then barf if we still haven't found it
+          if &verbose
+            echomsg "CSApprox: Colorscheme uses unknown color \"" . val . "\""
+          endif
+          continue
+        endtry
+      endtry
+    endif
+
+    if val =~? '^[fb]g$'
+      exe 'hi ' . hl.name . ' cterm' . which . '=' . val
+      let hl.cterm[which] = val
+    elseif val =~ '^#\=\x\{6}$'
+      let val = substitute(val, '^#', '', '')
+      let r = str2nr(val[0:1], 16)
+      let g = str2nr(val[2:3], 16)
+      let b = str2nr(val[4:5], 16)
+      let hl.cterm[which] = g:CSApprox_approximator_function(r, g, b)
+      exe 'hi ' . hl.name . ' cterm' . which . '=' . hl.cterm[which]
+    else
+      throw "Internal error handling color: " . val
+    endif
+  endfor
+
+  " Finally, set the attributes
+  let attrs = s:PossibleAttributes()
+  call filter(attrs, 'hl.cterm[v:val] == 1')
+
+  if !empty(attrs)
+    exe 'hi ' . hl.name . ' cterm=' . join(attrs, ',')
+  endif
+endfunction
+
+
+" {>1} Top-level control
+
+" Cache the highlight ID of the normal group; it's used often and won't change
+let s:hlid_normal = hlID('Normal')
+
+" {>2} Builtin cterm color names above 15
+" Vim defines some color name to high color mappings internally (see
+" syntax.c:do_highlight).  Since we don't want to overwrite a colorscheme that
+" was actually written for a high color terminal with our choices, but have no
+" way to tell if a colorscheme was written for a high color terminal, we fall
+" back on guessing.  If any highlight group has a cterm color set to 16 or
+" higher, we assume that the user has used a high color colorscheme - unless
+" that color is one of the below, which vim can set internally when a color is
+" requested by name.
+let s:presets_88  = []
+let s:presets_88 += [32] " Brown
+let s:presets_88 += [72] " DarkYellow
+let s:presets_88 += [84] " Gray
+let s:presets_88 += [84] " Grey
+let s:presets_88 += [82] " DarkGray
+let s:presets_88 += [82] " DarkGrey
+let s:presets_88 += [43] " LightBlue
+let s:presets_88 += [61] " LightGreen
+let s:presets_88 += [63] " LightCyan
+let s:presets_88 += [74] " LightRed
+let s:presets_88 += [75] " LightMagenta
+let s:presets_88 += [78] " LightYellow
+
+let s:presets_256  = []
+let s:presets_256 += [130] " Brown
+let s:presets_256 += [130] " DarkYellow
+let s:presets_256 += [248] " Gray
+let s:presets_256 += [248] " Grey
+let s:presets_256 += [242] " DarkGray
+let s:presets_256 += [242] " DarkGrey
+let s:presets_256 += [ 81] " LightBlue
+let s:presets_256 += [121] " LightGreen
+let s:presets_256 += [159] " LightCyan
+let s:presets_256 += [224] " LightRed
+let s:presets_256 += [225] " LightMagenta
+let s:presets_256 += [229] " LightYellow
+
+" {>2} Wrapper around :exe to allow :executing multiple commands.
+" "cmd" is the command to be :executed.
+" If the variable is a String, it is :executed.
+" If the variable is a List, each element is :executed.
+function! s:exe(cmd)
+  if type(a:cmd) == type('')
+    exe a:cmd
+  else
+    for cmd in a:cmd
+      call s:exe(cmd)
+    endfor
+  endif
+endfunction
+
+" {>2} Function to handle hooks
+" Prototype: HandleHooks(type [, scheme])
+" "type" is the type of hook to be executed, ie. "pre" or "post"
+" "scheme" is the name of the colorscheme that is currently active, if known
+"
+" If the variables g:CSApprox_hook_{type} and g:CSApprox_hook_{scheme}_{type}
+" exist, this will :execute them in that order.  If one does not exist, it
+" will silently be ignored.
+"
+" If the scheme name contains characters that are invalid in a variable name,
+" they will simply be removed.  Ie, g:colors_name = "123 foo_bar-baz456"
+" becomes "foo_barbaz456"
+"
+" NOTE: Exceptions will be printed out, rather than end processing early.  The
+" rationale is that it is worse for the user to fix the hook in an editor with
+" broken colors.  :)
+function! s:HandleHooks(type, ...)
+  let type = a:type
+  let scheme = (a:0 == 1 ? a:1 : "")
+  let scheme = substitute(scheme, '[^[:alnum:]_]', '', 'g')
+  let scheme = substitute(scheme, '^\d\+', '', '')
+
+  for cmd in [ 'g:CSApprox_hook_' . type,
+             \ 'g:CSApprox_' . scheme . '_hook_' . type,
+             \ 'g:CSApprox_hook_' . scheme . '_' . type ]
+    if exists(cmd)
+      try
+        call s:exe(eval(cmd))
+      catch
+        echomsg "Error processing " . cmd . ":"
+        echomsg v:exception
+      endtry
+    endif
+  endfor
+endfunction
+
+" {>2} Main function
+" Wrapper around the actual implementation to make it easier to ensure that
+" all temporary settings are restored by the time we return, whether or not
+" something was thrown.  Additionally, sets the 'verbose' option to the max of
+" g:CSApprox_verbose_level (default 1) and &verbose for the duration of the
+" main function.  This allows us to default to a message whenever any error,
+" even a recoverable one, occurs, meaning the user quickly finds out when
+" something's wrong, but makes it very easy for the user to make us silent.
+function! s:CSApprox(...)
+  try
+    if a:0 == 1 && a:1
+      if !exists('s:inhibit_hicolor_test')
+        let s:inhibit_hicolor_test = 0
+      endif
+      let s:inhibit_hicolor_test += 1
+    endif
+
+    let savelz  = &lz
+
+    set lz
+
+    if exists("g:CSApprox_attr_map") && type(g:CSApprox_attr_map) == type({})
+      call s:NormalizeAttrMap(g:CSApprox_attr_map)
+    else
+      let g:CSApprox_attr_map = { 'italic' : 'underline', 'sp' : 'fg' }
+    endif
+
+    " colors_name must be unset and reset, or vim will helpfully reload the
+    " colorscheme when we set the background for the Normal group.
+    " See the help entries ':hi-normal-cterm' and 'g:colors_name'
+    if exists("g:colors_name")
+      let colors_name = g:colors_name
+      unlet g:colors_name
+    endif
+
+    " Similarly, the global variable "syntax_cmd" must be set to something vim
+    " doesn't recognize, lest vim helpfully switch all colors back to the
+    " default whenever the Normal group is changed (in syncolor.vim)...
+    if exists("g:syntax_cmd")
+      let syntax_cmd = g:syntax_cmd
+    endif
+    let g:syntax_cmd = "PLEASE DON'T CHANGE ANY COLORS!!!"
+
+    " Set up our verbosity level, if needed.
+    " Default to 1, so the user can know if something's wrong.
+    if !exists("g:CSApprox_verbose_level")
+      let g:CSApprox_verbose_level = 1
+    endif
+
+    call s:HandleHooks("pre", (exists("colors_name") ? colors_name : ""))
+
+    let old_bg = &bg
+
+    " Set 'verbose' set to the maximum of &verbose and CSApprox_verbose_level
+    exe max([&vbs, g:CSApprox_verbose_level]) 'verbose call s:CSApproxImpl()'
+
+    let &bg = old_bg
+
+    call s:HandleHooks("post", (exists("colors_name") ? colors_name : ""))
+  finally
+    if exists("colors_name")
+      let g:colors_name = colors_name
+    endif
+
+    unlet g:syntax_cmd
+    if exists("syntax_cmd")
+      let g:syntax_cmd = syntax_cmd
+    endif
+
+    let &lz   = savelz
+
+    if a:0 == 1 && a:1
+      let s:inhibit_hicolor_test -= 1
+      if s:inhibit_hicolor_test == 0
+        unlet s:inhibit_hicolor_test
+      endif
+    endif
+  endtry
+endfunction
+
+" {>2} CSApprox implementation
+" Verifies that the user has not started the gui, and that vim recognizes his
+" terminal as having enough colors for us to go on, then gathers the existing
+" highlights and sets the cterm colors to match the gui colors for all those
+" highlights (unless the colorscheme was already high-color).
+function! s:CSApproxImpl()
+  " Return if not running in an 88/256 color terminal
+  if &t_Co != 256 && &t_Co != 88
+    if &verbose && &t_Co != ''
+      echomsg "CSApprox skipped; terminal only has" &t_Co "colors, not 88/256"
+      echomsg "Try checking :help csapprox-terminal for workarounds"
+    endif
+
+    return
+  endif
+
+  " Get the current highlight colors
+  let highlights = s:Highlights(["gui"])
+
+  let hinums = keys(highlights)
+
+  " Make sure that the script is not already 256 color by checking to make
+  " sure that no groups are set to a value above 256, unless the color they're
+  " set to can be set internally by vim (gotten by scraping
+  " color_numbers_{88,256} in syntax.c:do_highlight)
+  "
+  " XXX: s:inhibit_hicolor_test allows this test to be skipped for snapshots
+  if !exists("s:inhibit_hicolor_test") || !s:inhibit_hicolor_test
+    for hlid in hinums
+      for type in [ 'bg', 'fg' ]
+        let color = synIDattr(hlid, type, 'cterm')
+
+        if color > 15 && index(s:presets_{&t_Co}, str2nr(color)) < 0
+          " The value is set above 15, and wasn't set by vim.
+          if &verbose >= 2
+            echomsg 'CSApprox: Exiting - high' type 'color found for' highlights[hlid].name
+          endif
+          return
+        endif
+      endfor
+    endfor
+  endif
+
+  call s:FixupGuiInfo(highlights)
+  call s:FixupCtermInfo(highlights)
+
+  " We need to set the Normal group first so 'bg' and 'fg' work as colors
+  call insert(hinums, remove(hinums, index(hinums, string(s:hlid_normal))))
+
+  " then set each color's cterm attributes to match gui
+  for hlid in hinums
+    call s:SetCtermFromGui(highlights[hlid])
+  endfor
+endfunction
+
+" {>2} Write out the current colors to an 88/256 color colorscheme file.
+" "file" - destination filename
+" "overwrite" - overwrite an existing file
+function! s:CSApproxSnapshot(file, overwrite)
+  let force = a:overwrite
+  let file = fnamemodify(a:file, ":p")
+
+  if empty(file)
+    throw "Bad file name: \"" . file . "\""
+  elseif (filewritable(fnamemodify(file, ':h')) != 2)
+    throw "Cannot write to directory \"" . fnamemodify(file, ':h') . "\""
+  elseif (glob(file) || filereadable(file)) && !force
+    " TODO - respect 'confirm' here and prompt if it's set.
+    echohl ErrorMsg
+    echomsg "E13: File exists (add ! to override)"
+    echohl None
+    return
+  endif
+
+  " Sigh... This is basically a bug, but one that I have no chance of fixing.
+  " Vim decides that Pmenu should be highlighted in 'LightMagenta' in terminal
+  " vim and as 'Magenta' in gvim...  And I can't ask it what color it actually
+  " *wants*.  As far as I can see, there's no way for me to learn that
+  " I should output 'Magenta' when 'LightMagenta' is provided by vim for the
+  " terminal.
+  if !has('gui_running')
+    echohl WarningMsg
+    echomsg "Warning: The written colorscheme may have incorrect colors"
+    echomsg "         when CSApproxSnapshot is used in terminal vim!"
+    echohl None
+  endif
+
+  let save_t_Co = &t_Co
+  let s:inhibit_hicolor_test = 1
+  if exists("g:CSApprox_konsole")
+    let save_CSApprox_konsole = g:CSApprox_konsole
+  endif
+  if exists("g:CSApprox_eterm")
+    let save_CSApprox_eterm = g:CSApprox_eterm
+  endif
+
+  " Needed just like in CSApprox()
+  if exists("g:colors_name")
+    let colors_name = g:colors_name
+    unlet g:colors_name
+  endif
+
+  " Needed just like in CSApprox()
+  if exists("g:syntax_cmd")
+    let syntax_cmd = g:syntax_cmd
+  endif
+  let g:syntax_cmd = "PLEASE DON'T CHANGE ANY COLORS!!!"
+
+  try
+    let lines = []
+    let lines += [ '" This scheme was created by CSApproxSnapshot' ]
+    let lines += [ '" on ' . strftime("%a, %d %b %Y") ]
+    let lines += [ '' ]
+    let lines += [ 'hi clear' ]
+    let lines += [ 'if exists("syntax_on")' ]
+    let lines += [ '    syntax reset' ]
+    let lines += [ 'endif' ]
+    let lines += [ '' ]
+    let lines += [ 'if v:version < 700' ]
+    let lines += [ '    let g:colors_name = expand("<sfile>:t:r")' ]
+    let lines += [ '    command! -nargs=+ CSAHi exe "hi" substitute(substitute(<q-args>, "undercurl", "underline", "g"), "guisp\\S\\+", "", "g")' ]
+    let lines += [ 'else' ]
+    let lines += [ '    let g:colors_name = expand("<sfile>:t:r")' ]
+    let lines += [ '    command! -nargs=+ CSAHi exe "hi" <q-args>' ]
+    let lines += [ 'endif' ]
+    let lines += [ '' ]
+    let lines += [ 'function! s:old_kde()' ]
+    let lines += [ '  " Konsole only used its own palette up til KDE 4.2.0' ]
+    let lines += [ "  if executable('kde4-config') && system('kde4-config --kde-version') =~ '^4\.[10]\.'" ]
+    let lines += [ '    return 1' ]
+    let lines += [ "  elseif executable('kde-config') && system('kde-config --version') =~# 'KDE: 3\.'" ]
+    let lines += [ '    return 1' ]
+    let lines += [ '  else' ]
+    let lines += [ '    return 0' ]
+    let lines += [ '  endif' ]
+    let lines += [ 'endfunction' ]
+    let lines += [ '' ]
+
+
+    let lines += [ 'if 0' ]
+    for round in [ 'konsole', 'eterm', 'xterm', 'urxvt' ]
+      sil! unlet g:CSApprox_eterm
+      sil! unlet g:CSApprox_konsole
+
+      if round == 'konsole'
+        let g:CSApprox_konsole = 1
+      elseif round == 'eterm'
+        let g:CSApprox_eterm = 1
+      endif
+
+      if round == 'urxvt'
+        set t_Co=88
+      else
+        set t_Co=256
+      endif
+
+      call s:CSApprox()
+
+      let highlights = s:Highlights(["term", "cterm", "gui"])
+      call s:FixupGuiInfo(highlights)
+
+      if round == 'konsole' || round == 'eterm'
+        if round == 'konsole'
+          let term_matches_round = '(&term =~? "^konsole" && s:old_kde())'
+        else
+          let term_matches_round = '&term =~? "^' . round . '"'
+        endif
+
+        let lines += [ 'elseif has("gui_running") || (&t_Co == ' . &t_Co
+                   \ . ' && (&term ==# "xterm" || &term =~# "^screen")'
+                   \ . ' && exists("g:CSApprox_' . round . '")'
+                   \ . ' && g:CSApprox_' . round . ')'
+                   \ . ' || ' . term_matches_round ]
+      else
+        let lines += [ 'elseif has("gui_running") || &t_Co == ' . &t_Co ]
+      endif
+
+      let hinums = keys(highlights)
+
+      call insert(hinums, remove(hinums, index(hinums, string(s:hlid_normal))))
+
+      for hlnum in hinums
+        let hl = highlights[hlnum]
+        let line = '    CSAHi ' . hl.name
+        for type in [ 'term', 'cterm', 'gui' ]
+          let attrs = s:PossibleAttributes()
+          call filter(attrs, 'hl[type][v:val] == 1')
+          let line .= ' ' . type . '=' . (empty(attrs) ? 'NONE' : join(attrs, ','))
+          if type != 'term'
+            let line .= ' ' . type . 'bg=' . (len(hl[type].bg) ? hl[type].bg : 'bg')
+            let line .= ' ' . type . 'fg=' . (len(hl[type].fg) ? hl[type].fg : 'fg')
+            if type == 'gui' && hl.gui.sp !~ '^\s*$'
+              let line .= ' ' . type . 'sp=' . hl[type].sp
+            endif
+          endif
+        endfor
+        let lines += [ line ]
+      endfor
+    endfor
+    let lines += [ 'endif' ]
+    let lines += [ '' ]
+    let lines += [ 'if 1' ]
+    let lines += [ '    delcommand CSAHi' ]
+    let lines += [ 'endif' ]
+    call writefile(lines, file)
+  finally
+    let &t_Co = save_t_Co
+
+    if exists("save_CSApprox_konsole")
+      let g:CSApprox_konsole = save_CSApprox_konsole
+    endif
+    if exists("save_CSApprox_eterm")
+      let g:CSApprox_eterm = save_CSApprox_eterm
+    endif
+
+    if exists("colors_name")
+      let g:colors_name = colors_name
+    endif
+
+    unlet g:syntax_cmd
+    if exists("syntax_cmd")
+      let g:syntax_cmd = syntax_cmd
+    endif
+
+    call s:CSApprox()
+
+    unlet s:inhibit_hicolor_test
+  endtry
+endfunction
+
+" {>2} Snapshot user command
+command! -bang -nargs=1 -complete=file -bar CSApproxSnapshot
+        \ call s:CSApproxSnapshot(<f-args>, strlen("<bang>"))
+
+" {>2} Manual updates
+command -bang -bar CSApprox call s:CSApprox(strlen("<bang>"))
+
+" {>1} Autocmds
+" Set up an autogroup to hook us on the completion of any :colorscheme command
+augroup CSApprox
+  au!
+  au ColorScheme * call s:CSApprox()
+  "au User CSApproxPost highlight Normal ctermbg=none | highlight NonText ctermbg=None
+augroup END
+
+" {>1} Restore compatibility options
+let &cpo = s:savecpo
+unlet s:savecpo
+
+
+" {0} vim:sw=2:sts=2:et:fdm=expr:fde=substitute(matchstr(getline(v\:lnum),'^\\s*"\\s*{\\zs.\\{-}\\ze}'),'^$','=','')

CSApprox/autoload/csapprox.vim

@@ -0,0 +1,835 @@
+" Copyright (c) 2012, Matthew J. Wozniski
+" All rights reserved.
+"
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are met:
+"     * Redistributions of source code must retain the above copyright
+"       notice, this list of conditions and the following disclaimer.
+"     * Redistributions in binary form must reproduce the above copyright
+"       notice, this list of conditions and the following disclaimer in the
+"       documentation and/or other materials provided with the distribution.
+"     * The names of the contributors may not be used to endorse or promote
+"       products derived from this software without specific prior written
+"       permission.
+"
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
+" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+let s:rgb = {}
+
+let s:rgb["alice blue"]             = "#f0f8ff"
+let s:rgb["aliceblue"]              = "#f0f8ff"
+let s:rgb["antique white"]          = "#faebd7"
+let s:rgb["antiquewhite"]           = "#faebd7"
+let s:rgb["antiquewhite1"]          = "#ffefdb"
+let s:rgb["antiquewhite2"]          = "#eedfcc"
+let s:rgb["antiquewhite3"]          = "#cdc0b0"
+let s:rgb["antiquewhite4"]          = "#8b8378"
+let s:rgb["aquamarine"]             = "#7fffd4"
+let s:rgb["aquamarine1"]            = "#7fffd4"
+let s:rgb["aquamarine2"]            = "#76eec6"
+let s:rgb["aquamarine3"]            = "#66cdaa"
+let s:rgb["aquamarine4"]            = "#458b74"
+let s:rgb["azure"]                  = "#f0ffff"
+let s:rgb["azure1"]                 = "#f0ffff"
+let s:rgb["azure2"]                 = "#e0eeee"
+let s:rgb["azure3"]                 = "#c1cdcd"
+let s:rgb["azure4"]                 = "#838b8b"
+let s:rgb["beige"]                  = "#f5f5dc"
+let s:rgb["bisque"]                 = "#ffe4c4"
+let s:rgb["bisque1"]                = "#ffe4c4"
+let s:rgb["bisque2"]                = "#eed5b7"
+let s:rgb["bisque3"]                = "#cdb79e"
+let s:rgb["bisque4"]                = "#8b7d6b"
+let s:rgb["black"]                  = "#000000"
+let s:rgb["blanched almond"]        = "#ffebcd"
+let s:rgb["blanchedalmond"]         = "#ffebcd"
+let s:rgb["blue violet"]            = "#8a2be2"
+let s:rgb["blue"]                   = "#0000ff"
+let s:rgb["blue1"]                  = "#0000ff"
+let s:rgb["blue2"]                  = "#0000ee"
+let s:rgb["blue3"]                  = "#0000cd"
+let s:rgb["blue4"]                  = "#00008b"
+let s:rgb["blueviolet"]             = "#8a2be2"
+let s:rgb["brown"]                  = "#a52a2a"
+let s:rgb["brown1"]                 = "#ff4040"
+let s:rgb["brown2"]                 = "#ee3b3b"
+let s:rgb["brown3"]                 = "#cd3333"
+let s:rgb["brown4"]                 = "#8b2323"
+let s:rgb["burlywood"]              = "#deb887"
+let s:rgb["burlywood1"]             = "#ffd39b"
+let s:rgb["burlywood2"]             = "#eec591"
+let s:rgb["burlywood3"]             = "#cdaa7d"
+let s:rgb["burlywood4"]             = "#8b7355"
+let s:rgb["cadet blue"]             = "#5f9ea0"
+let s:rgb["cadetblue"]              = "#5f9ea0"
+let s:rgb["cadetblue1"]             = "#98f5ff"
+let s:rgb["cadetblue2"]             = "#8ee5ee"
+let s:rgb["cadetblue3"]             = "#7ac5cd"
+let s:rgb["cadetblue4"]             = "#53868b"
+let s:rgb["chartreuse"]             = "#7fff00"
+let s:rgb["chartreuse1"]            = "#7fff00"
+let s:rgb["chartreuse2"]            = "#76ee00"
+let s:rgb["chartreuse3"]            = "#66cd00"
+let s:rgb["chartreuse4"]            = "#458b00"
+let s:rgb["chocolate"]              = "#d2691e"
+let s:rgb["chocolate1"]             = "#ff7f24"
+let s:rgb["chocolate2"]             = "#ee7621"
+let s:rgb["chocolate3"]             = "#cd661d"
+let s:rgb["chocolate4"]             = "#8b4513"
+let s:rgb["coral"]                  = "#ff7f50"
+let s:rgb["coral1"]                 = "#ff7256"
+let s:rgb["coral2"]                 = "#ee6a50"
+let s:rgb["coral3"]                 = "#cd5b45"
+let s:rgb["coral4"]                 = "#8b3e2f"
+let s:rgb["cornflower blue"]        = "#6495ed"
+let s:rgb["cornflowerblue"]         = "#6495ed"
+let s:rgb["cornsilk"]               = "#fff8dc"
+let s:rgb["cornsilk1"]              = "#fff8dc"
+let s:rgb["cornsilk2"]              = "#eee8cd"
+let s:rgb["cornsilk3"]              = "#cdc8b1"
+let s:rgb["cornsilk4"]              = "#8b8878"
+let s:rgb["cyan"]                   = "#00ffff"
+let s:rgb["cyan1"]                  = "#00ffff"
+let s:rgb["cyan2"]                  = "#00eeee"
+let s:rgb["cyan3"]                  = "#00cdcd"
+let s:rgb["cyan4"]                  = "#008b8b"
+let s:rgb["dark blue"]              = "#00008b"
+let s:rgb["dark cyan"]              = "#008b8b"
+let s:rgb["dark goldenrod"]         = "#b8860b"
+let s:rgb["dark gray"]              = "#a9a9a9"
+let s:rgb["dark green"]             = "#006400"
+let s:rgb["dark grey"]              = "#a9a9a9"
+let s:rgb["dark khaki"]             = "#bdb76b"
+let s:rgb["dark magenta"]           = "#8b008b"
+let s:rgb["dark olive green"]       = "#556b2f"
+let s:rgb["dark orange"]            = "#ff8c00"
+let s:rgb["dark orchid"]            = "#9932cc"
+let s:rgb["dark red"]               = "#8b0000"
+let s:rgb["dark salmon"]            = "#e9967a"
+let s:rgb["dark sea green"]         = "#8fbc8f"
+let s:rgb["dark slate blue"]        = "#483d8b"
+let s:rgb["dark slate gray"]        = "#2f4f4f"
+let s:rgb["dark slate grey"]        = "#2f4f4f"
+let s:rgb["dark turquoise"]         = "#00ced1"
+let s:rgb["dark violet"]            = "#9400d3"
+let s:rgb["dark yellow"]            = "#bbbb00"
+let s:rgb["darkblue"]               = "#00008b"
+let s:rgb["darkcyan"]               = "#008b8b"
+let s:rgb["darkgoldenrod"]          = "#b8860b"
+let s:rgb["darkgoldenrod1"]         = "#ffb90f"
+let s:rgb["darkgoldenrod2"]         = "#eead0e"
+let s:rgb["darkgoldenrod3"]         = "#cd950c"
+let s:rgb["darkgoldenrod4"]         = "#8b6508"
+let s:rgb["darkgray"]               = "#a9a9a9"
+let s:rgb["darkgreen"]              = "#006400"
+let s:rgb["darkgrey"]               = "#a9a9a9"
+let s:rgb["darkkhaki"]              = "#bdb76b"
+let s:rgb["darkmagenta"]            = "#8b008b"
+let s:rgb["darkolivegreen"]         = "#556b2f"
+let s:rgb["darkolivegreen1"]        = "#caff70"
+let s:rgb["darkolivegreen2"]        = "#bcee68"
+let s:rgb["darkolivegreen3"]        = "#a2cd5a"
+let s:rgb["darkolivegreen4"]        = "#6e8b3d"
+let s:rgb["darkorange"]             = "#ff8c00"
+let s:rgb["darkorange1"]            = "#ff7f00"
+let s:rgb["darkorange2"]            = "#ee7600"
+let s:rgb["darkorange3"]            = "#cd6600"
+let s:rgb["darkorange4"]            = "#8b4500"
+let s:rgb["darkorchid"]             = "#9932cc"
+let s:rgb["darkorchid1"]            = "#bf3eff"
+let s:rgb["darkorchid2"]            = "#b23aee"
+let s:rgb["darkorchid3"]            = "#9a32cd"
+let s:rgb["darkorchid4"]            = "#68228b"
+let s:rgb["darkred"]                = "#8b0000"
+let s:rgb["darksalmon"]             = "#e9967a"
+let s:rgb["darkseagreen"]           = "#8fbc8f"
+let s:rgb["darkseagreen1"]          = "#c1ffc1"
+let s:rgb["darkseagreen2"]          = "#b4eeb4"
+let s:rgb["darkseagreen3"]          = "#9bcd9b"
+let s:rgb["darkseagreen4"]          = "#698b69"
+let s:rgb["darkslateblue"]          = "#483d8b"
+let s:rgb["darkslategray"]          = "#2f4f4f"
+let s:rgb["darkslategray1"]         = "#97ffff"
+let s:rgb["darkslategray2"]         = "#8deeee"
+let s:rgb["darkslategray3"]         = "#79cdcd"
+let s:rgb["darkslategray4"]         = "#528b8b"
+let s:rgb["darkslategrey"]          = "#2f4f4f"
+let s:rgb["darkturquoise"]          = "#00ced1"
+let s:rgb["darkviolet"]             = "#9400d3"
+let s:rgb["darkyellow"]             = "#bbbb00"
+let s:rgb["deep pink"]              = "#ff1493"
+let s:rgb["deep sky blue"]          = "#00bfff"
+let s:rgb["deeppink"]               = "#ff1493"
+let s:rgb["deeppink1"]              = "#ff1493"
+let s:rgb["deeppink2"]              = "#ee1289"
+let s:rgb["deeppink3"]              = "#cd1076"
+let s:rgb["deeppink4"]              = "#8b0a50"
+let s:rgb["deepskyblue"]            = "#00bfff"
+let s:rgb["deepskyblue1"]           = "#00bfff"
+let s:rgb["deepskyblue2"]           = "#00b2ee"
+let s:rgb["deepskyblue3"]           = "#009acd"
+let s:rgb["deepskyblue4"]           = "#00688b"
+let s:rgb["dim gray"]               = "#696969"
+let s:rgb["dim grey"]               = "#696969"
+let s:rgb["dimgray"]                = "#696969"
+let s:rgb["dimgrey"]                = "#696969"
+let s:rgb["dodger blue"]            = "#1e90ff"
+let s:rgb["dodgerblue"]             = "#1e90ff"
+let s:rgb["dodgerblue1"]            = "#1e90ff"
+let s:rgb["dodgerblue2"]            = "#1c86ee"
+let s:rgb["dodgerblue3"]            = "#1874cd"
+let s:rgb["dodgerblue4"]            = "#104e8b"
+let s:rgb["firebrick"]              = "#b22222"
+let s:rgb["firebrick1"]             = "#ff3030"
+let s:rgb["firebrick2"]             = "#ee2c2c"
+let s:rgb["firebrick3"]             = "#cd2626"
+let s:rgb["firebrick4"]             = "#8b1a1a"
+let s:rgb["floral white"]           = "#fffaf0"
+let s:rgb["floralwhite"]            = "#fffaf0"
+let s:rgb["forest green"]           = "#228b22"
+let s:rgb["forestgreen"]            = "#228b22"
+let s:rgb["gainsboro"]              = "#dcdcdc"
+let s:rgb["ghost white"]            = "#f8f8ff"
+let s:rgb["ghostwhite"]             = "#f8f8ff"
+let s:rgb["gold"]                   = "#ffd700"
+let s:rgb["gold1"]                  = "#ffd700"
+let s:rgb["gold2"]                  = "#eec900"
+let s:rgb["gold3"]                  = "#cdad00"
+let s:rgb["gold4"]                  = "#8b7500"
+let s:rgb["goldenrod"]              = "#daa520"
+let s:rgb["goldenrod1"]             = "#ffc125"
+let s:rgb["goldenrod2"]             = "#eeb422"
+let s:rgb["goldenrod3"]             = "#cd9b1d"
+let s:rgb["goldenrod4"]             = "#8b6914"
+let s:rgb["gray"]                   = "#bebebe"
+let s:rgb["gray0"]                  = "#000000"
+let s:rgb["gray1"]                  = "#030303"
+let s:rgb["gray10"]                 = "#1a1a1a"
+let s:rgb["gray100"]                = "#ffffff"
+let s:rgb["gray11"]                 = "#1c1c1c"
+let s:rgb["gray12"]                 = "#1f1f1f"
+let s:rgb["gray13"]                 = "#212121"
+let s:rgb["gray14"]                 = "#242424"
+let s:rgb["gray15"]                 = "#262626"
+let s:rgb["gray16"]                 = "#292929"
+let s:rgb["gray17"]                 = "#2b2b2b"
+let s:rgb["gray18"]                 = "#2e2e2e"
+let s:rgb["gray19"]                 = "#303030"
+let s:rgb["gray2"]                  = "#050505"
+let s:rgb["gray20"]                 = "#333333"
+let s:rgb["gray21"]                 = "#363636"
+let s:rgb["gray22"]                 = "#383838"
+let s:rgb["gray23"]                 = "#3b3b3b"
+let s:rgb["gray24"]                 = "#3d3d3d"
+let s:rgb["gray25"]                 = "#404040"
+let s:rgb["gray26"]                 = "#424242"
+let s:rgb["gray27"]                 = "#454545"
+let s:rgb["gray28"]                 = "#474747"
+let s:rgb["gray29"]                 = "#4a4a4a"
+let s:rgb["gray3"]                  = "#080808"
+let s:rgb["gray30"]                 = "#4d4d4d"
+let s:rgb["gray31"]                 = "#4f4f4f"
+let s:rgb["gray32"]                 = "#525252"
+let s:rgb["gray33"]                 = "#545454"
+let s:rgb["gray34"]                 = "#575757"
+let s:rgb["gray35"]                 = "#595959"
+let s:rgb["gray36"]                 = "#5c5c5c"
+let s:rgb["gray37"]                 = "#5e5e5e"
+let s:rgb["gray38"]                 = "#616161"
+let s:rgb["gray39"]                 = "#636363"
+let s:rgb["gray4"]                  = "#0a0a0a"
+let s:rgb["gray40"]                 = "#666666"
+let s:rgb["gray41"]                 = "#696969"
+let s:rgb["gray42"]                 = "#6b6b6b"
+let s:rgb["gray43"]                 = "#6e6e6e"
+let s:rgb["gray44"]                 = "#707070"
+let s:rgb["gray45"]                 = "#737373"
+let s:rgb["gray46"]                 = "#757575"
+let s:rgb["gray47"]                 = "#787878"
+let s:rgb["gray48"]                 = "#7a7a7a"
+let s:rgb["gray49"]                 = "#7d7d7d"
+let s:rgb["gray5"]                  = "#0d0d0d"
+let s:rgb["gray50"]                 = "#7f7f7f"
+let s:rgb["gray51"]                 = "#828282"
+let s:rgb["gray52"]                 = "#858585"
+let s:rgb["gray53"]                 = "#878787"
+let s:rgb["gray54"]                 = "#8a8a8a"
+let s:rgb["gray55"]                 = "#8c8c8c"
+let s:rgb["gray56"]                 = "#8f8f8f"
+let s:rgb["gray57"]                 = "#919191"
+let s:rgb["gray58"]                 = "#949494"
+let s:rgb["gray59"]                 = "#969696"
+let s:rgb["gray6"]                  = "#0f0f0f"
+let s:rgb["gray60"]                 = "#999999"
+let s:rgb["gray61"]                 = "#9c9c9c"
+let s:rgb["gray62"]                 = "#9e9e9e"
+let s:rgb["gray63"]                 = "#a1a1a1"
+let s:rgb["gray64"]                 = "#a3a3a3"
+let s:rgb["gray65"]                 = "#a6a6a6"
+let s:rgb["gray66"]                 = "#a8a8a8"
+let s:rgb["gray67"]                 = "#ababab"
+let s:rgb["gray68"]                 = "#adadad"
+let s:rgb["gray69"]                 = "#b0b0b0"
+let s:rgb["gray7"]                  = "#121212"
+let s:rgb["gray70"]                 = "#b3b3b3"
+let s:rgb["gray71"]                 = "#b5b5b5"
+let s:rgb["gray72"]                 = "#b8b8b8"
+let s:rgb["gray73"]                 = "#bababa"
+let s:rgb["gray74"]                 = "#bdbdbd"
+let s:rgb["gray75"]                 = "#bfbfbf"
+let s:rgb["gray76"]                 = "#c2c2c2"
+let s:rgb["gray77"]                 = "#c4c4c4"
+let s:rgb["gray78"]                 = "#c7c7c7"
+let s:rgb["gray79"]                 = "#c9c9c9"
+let s:rgb["gray8"]                  = "#141414"
+let s:rgb["gray80"]                 = "#cccccc"
+let s:rgb["gray81"]                 = "#cfcfcf"
+let s:rgb["gray82"]                 = "#d1d1d1"
+let s:rgb["gray83"]                 = "#d4d4d4"
+let s:rgb["gray84"]                 = "#d6d6d6"
+let s:rgb["gray85"]                 = "#d9d9d9"
+let s:rgb["gray86"]                 = "#dbdbdb"
+let s:rgb["gray87"]                 = "#dedede"
+let s:rgb["gray88"]                 = "#e0e0e0"
+let s:rgb["gray89"]                 = "#e3e3e3"
+let s:rgb["gray9"]                  = "#171717"
+let s:rgb["gray90"]                 = "#e5e5e5"
+let s:rgb["gray91"]                 = "#e8e8e8"
+let s:rgb["gray92"]                 = "#ebebeb"
+let s:rgb["gray93"]                 = "#ededed"
+let s:rgb["gray94"]                 = "#f0f0f0"
+let s:rgb["gray95"]                 = "#f2f2f2"
+let s:rgb["gray96"]                 = "#f5f5f5"
+let s:rgb["gray97"]                 = "#f7f7f7"
+let s:rgb["gray98"]                 = "#fafafa"
+let s:rgb["gray99"]                 = "#fcfcfc"
+let s:rgb["green yellow"]           = "#adff2f"
+let s:rgb["green"]                  = "#00ff00"
+let s:rgb["green1"]                 = "#00ff00"
+let s:rgb["green2"]                 = "#00ee00"
+let s:rgb["green3"]                 = "#00cd00"
+let s:rgb["green4"]                 = "#008b00"
+let s:rgb["greenyellow"]            = "#adff2f"
+let s:rgb["grey"]                   = "#bebebe"
+let s:rgb["grey0"]                  = "#000000"
+let s:rgb["grey1"]                  = "#030303"
+let s:rgb["grey10"]                 = "#1a1a1a"
+let s:rgb["grey100"]                = "#ffffff"
+let s:rgb["grey11"]                 = "#1c1c1c"
+let s:rgb["grey12"]                 = "#1f1f1f"
+let s:rgb["grey13"]                 = "#212121"
+let s:rgb["grey14"]                 = "#242424"
+let s:rgb["grey15"]                 = "#262626"
+let s:rgb["grey16"]                 = "#292929"
+let s:rgb["grey17"]                 = "#2b2b2b"
+let s:rgb["grey18"]                 = "#2e2e2e"
+let s:rgb["grey19"]                 = "#303030"
+let s:rgb["grey2"]                  = "#050505"
+let s:rgb["grey20"]                 = "#333333"
+let s:rgb["grey21"]                 = "#363636"
+let s:rgb["grey22"]                 = "#383838"
+let s:rgb["grey23"]                 = "#3b3b3b"
+let s:rgb["grey24"]                 = "#3d3d3d"
+let s:rgb["grey25"]                 = "#404040"
+let s:rgb["grey26"]                 = "#424242"
+let s:rgb["grey27"]                 = "#454545"
+let s:rgb["grey28"]                 = "#474747"
+let s:rgb["grey29"]                 = "#4a4a4a"
+let s:rgb["grey3"]                  = "#080808"
+let s:rgb["grey30"]                 = "#4d4d4d"
+let s:rgb["grey31"]                 = "#4f4f4f"
+let s:rgb["grey32"]                 = "#525252"
+let s:rgb["grey33"]                 = "#545454"
+let s:rgb["grey34"]                 = "#575757"
+let s:rgb["grey35"]                 = "#595959"
+let s:rgb["grey36"]                 = "#5c5c5c"
+let s:rgb["grey37"]                 = "#5e5e5e"
+let s:rgb["grey38"]                 = "#616161"
+let s:rgb["grey39"]                 = "#636363"
+let s:rgb["grey4"]                  = "#0a0a0a"
+let s:rgb["grey40"]                 = "#666666"
+let s:rgb["grey41"]                 = "#696969"
+let s:rgb["grey42"]                 = "#6b6b6b"
+let s:rgb["grey43"]                 = "#6e6e6e"
+let s:rgb["grey44"]                 = "#707070"
+let s:rgb["grey45"]                 = "#737373"
+let s:rgb["grey46"]                 = "#757575"
+let s:rgb["grey47"]                 = "#787878"
+let s:rgb["grey48"]                 = "#7a7a7a"
+let s:rgb["grey49"]                 = "#7d7d7d"
+let s:rgb["grey5"]                  = "#0d0d0d"
+let s:rgb["grey50"]                 = "#7f7f7f"
+let s:rgb["grey51"]                 = "#828282"
+let s:rgb["grey52"]                 = "#858585"
+let s:rgb["grey53"]                 = "#878787"
+let s:rgb["grey54"]                 = "#8a8a8a"
+let s:rgb["grey55"]                 = "#8c8c8c"
+let s:rgb["grey56"]                 = "#8f8f8f"
+let s:rgb["grey57"]                 = "#919191"
+let s:rgb["grey58"]                 = "#949494"
+let s:rgb["grey59"]                 = "#969696"
+let s:rgb["grey6"]                  = "#0f0f0f"
+let s:rgb["grey60"]                 = "#999999"
+let s:rgb["grey61"]                 = "#9c9c9c"
+let s:rgb["grey62"]                 = "#9e9e9e"
+let s:rgb["grey63"]                 = "#a1a1a1"
+let s:rgb["grey64"]                 = "#a3a3a3"
+let s:rgb["grey65"]                 = "#a6a6a6"
+let s:rgb["grey66"]                 = "#a8a8a8"
+let s:rgb["grey67"]                 = "#ababab"
+let s:rgb["grey68"]                 = "#adadad"
+let s:rgb["grey69"]                 = "#b0b0b0"
+let s:rgb["grey7"]                  = "#121212"
+let s:rgb["grey70"]                 = "#b3b3b3"
+let s:rgb["grey71"]                 = "#b5b5b5"
+let s:rgb["grey72"]                 = "#b8b8b8"
+let s:rgb["grey73"]                 = "#bababa"
+let s:rgb["grey74"]                 = "#bdbdbd"
+let s:rgb["grey75"]                 = "#bfbfbf"
+let s:rgb["grey76"]                 = "#c2c2c2"
+let s:rgb["grey77"]                 = "#c4c4c4"
+let s:rgb["grey78"]                 = "#c7c7c7"
+let s:rgb["grey79"]                 = "#c9c9c9"
+let s:rgb["grey8"]                  = "#141414"
+let s:rgb["grey80"]                 = "#cccccc"
+let s:rgb["grey81"]                 = "#cfcfcf"
+let s:rgb["grey82"]                 = "#d1d1d1"
+let s:rgb["grey83"]                 = "#d4d4d4"
+let s:rgb["grey84"]                 = "#d6d6d6"
+let s:rgb["grey85"]                 = "#d9d9d9"
+let s:rgb["grey86"]                 = "#dbdbdb"
+let s:rgb["grey87"]                 = "#dedede"
+let s:rgb["grey88"]                 = "#e0e0e0"
+let s:rgb["grey89"]                 = "#e3e3e3"
+let s:rgb["grey9"]                  = "#171717"
+let s:rgb["grey90"]                 = "#e5e5e5"
+let s:rgb["grey91"]                 = "#e8e8e8"
+let s:rgb["grey92"]                 = "#ebebeb"
+let s:rgb["grey93"]                 = "#ededed"
+let s:rgb["grey94"]                 = "#f0f0f0"
+let s:rgb["grey95"]                 = "#f2f2f2"
+let s:rgb["grey96"]                 = "#f5f5f5"
+let s:rgb["grey97"]                 = "#f7f7f7"
+let s:rgb["grey98"]                 = "#fafafa"
+let s:rgb["grey99"]                 = "#fcfcfc"
+let s:rgb["honeydew"]               = "#f0fff0"
+let s:rgb["honeydew1"]              = "#f0fff0"
+let s:rgb["honeydew2"]              = "#e0eee0"
+let s:rgb["honeydew3"]              = "#c1cdc1"
+let s:rgb["honeydew4"]              = "#838b83"
+let s:rgb["hot pink"]               = "#ff69b4"
+let s:rgb["hotpink"]                = "#ff69b4"
+let s:rgb["hotpink1"]               = "#ff6eb4"
+let s:rgb["hotpink2"]               = "#ee6aa7"
+let s:rgb["hotpink3"]               = "#cd6090"
+let s:rgb["hotpink4"]               = "#8b3a62"
+let s:rgb["indian red"]             = "#cd5c5c"
+let s:rgb["indianred"]              = "#cd5c5c"
+let s:rgb["indianred1"]             = "#ff6a6a"
+let s:rgb["indianred2"]             = "#ee6363"
+let s:rgb["indianred3"]             = "#cd5555"
+let s:rgb["indianred4"]             = "#8b3a3a"
+let s:rgb["ivory"]                  = "#fffff0"
+let s:rgb["ivory1"]                 = "#fffff0"
+let s:rgb["ivory2"]                 = "#eeeee0"
+let s:rgb["ivory3"]                 = "#cdcdc1"
+let s:rgb["ivory4"]                 = "#8b8b83"
+let s:rgb["khaki"]                  = "#f0e68c"
+let s:rgb["khaki1"]                 = "#fff68f"
+let s:rgb["khaki2"]                 = "#eee685"
+let s:rgb["khaki3"]                 = "#cdc673"
+let s:rgb["khaki4"]                 = "#8b864e"
+let s:rgb["lavender blush"]         = "#fff0f5"
+let s:rgb["lavender"]               = "#e6e6fa"
+let s:rgb["lavenderblush"]          = "#fff0f5"
+let s:rgb["lavenderblush1"]         = "#fff0f5"
+let s:rgb["lavenderblush2"]         = "#eee0e5"
+let s:rgb["lavenderblush3"]         = "#cdc1c5"
+let s:rgb["lavenderblush4"]         = "#8b8386"
+let s:rgb["lawn green"]             = "#7cfc00"
+let s:rgb["lawngreen"]              = "#7cfc00"
+let s:rgb["lemon chiffon"]          = "#fffacd"
+let s:rgb["lemonchiffon"]           = "#fffacd"
+let s:rgb["lemonchiffon1"]          = "#fffacd"
+let s:rgb["lemonchiffon2"]          = "#eee9bf"
+let s:rgb["lemonchiffon3"]          = "#cdc9a5"
+let s:rgb["lemonchiffon4"]          = "#8b8970"
+let s:rgb["light blue"]             = "#add8e6"
+let s:rgb["light coral"]            = "#f08080"
+let s:rgb["light cyan"]             = "#e0ffff"
+let s:rgb["light goldenrod yellow"] = "#fafad2"
+let s:rgb["light goldenrod"]        = "#eedd82"
+let s:rgb["light gray"]             = "#d3d3d3"
+let s:rgb["light green"]            = "#90ee90"
+let s:rgb["light grey"]             = "#d3d3d3"
+let s:rgb["light magenta"]          = "#ffbbff"
+let s:rgb["light pink"]             = "#ffb6c1"
+let s:rgb["light red"]              = "#ffbbbb"
+let s:rgb["light salmon"]           = "#ffa07a"
+let s:rgb["light sea green"]        = "#20b2aa"
+let s:rgb["light sky blue"]         = "#87cefa"
+let s:rgb["light slate blue"]       = "#8470ff"
+let s:rgb["light slate gray"]       = "#778899"
+let s:rgb["light slate grey"]       = "#778899"
+let s:rgb["light steel blue"]       = "#b0c4de"
+let s:rgb["light yellow"]           = "#ffffe0"
+let s:rgb["lightblue"]              = "#add8e6"
+let s:rgb["lightblue1"]             = "#bfefff"
+let s:rgb["lightblue2"]             = "#b2dfee"
+let s:rgb["lightblue3"]             = "#9ac0cd"
+let s:rgb["lightblue4"]             = "#68838b"
+let s:rgb["lightcoral"]             = "#f08080"
+let s:rgb["lightcyan"]              = "#e0ffff"
+let s:rgb["lightcyan1"]             = "#e0ffff"
+let s:rgb["lightcyan2"]             = "#d1eeee"
+let s:rgb["lightcyan3"]             = "#b4cdcd"
+let s:rgb["lightcyan4"]             = "#7a8b8b"
+let s:rgb["lightgoldenrod"]         = "#eedd82"
+let s:rgb["lightgoldenrod1"]        = "#ffec8b"
+let s:rgb["lightgoldenrod2"]        = "#eedc82"
+let s:rgb["lightgoldenrod3"]        = "#cdbe70"
+let s:rgb["lightgoldenrod4"]        = "#8b814c"
+let s:rgb["lightgoldenrodyellow"]   = "#fafad2"
+let s:rgb["lightgray"]              = "#d3d3d3"
+let s:rgb["lightgreen"]             = "#90ee90"
+let s:rgb["lightgrey"]              = "#d3d3d3"
+let s:rgb["lightmagenta"]           = "#ffbbff"
+let s:rgb["lightpink"]              = "#ffb6c1"
+let s:rgb["lightpink1"]             = "#ffaeb9"
+let s:rgb["lightpink2"]             = "#eea2ad"
+let s:rgb["lightpink3"]             = "#cd8c95"
+let s:rgb["lightpink4"]             = "#8b5f65"
+let s:rgb["lightred"]               = "#ffbbbb"
+let s:rgb["lightsalmon"]            = "#ffa07a"
+let s:rgb["lightsalmon1"]           = "#ffa07a"
+let s:rgb["lightsalmon2"]           = "#ee9572"
+let s:rgb["lightsalmon3"]           = "#cd8162"
+let s:rgb["lightsalmon4"]           = "#8b5742"
+let s:rgb["lightseagreen"]          = "#20b2aa"
+let s:rgb["lightskyblue"]           = "#87cefa"
+let s:rgb["lightskyblue1"]          = "#b0e2ff"
+let s:rgb["lightskyblue2"]          = "#a4d3ee"
+let s:rgb["lightskyblue3"]          = "#8db6cd"
+let s:rgb["lightskyblue4"]          = "#607b8b"
+let s:rgb["lightslateblue"]         = "#8470ff"
+let s:rgb["lightslategray"]         = "#778899"
+let s:rgb["lightslategrey"]         = "#778899"
+let s:rgb["lightsteelblue"]         = "#b0c4de"
+let s:rgb["lightsteelblue1"]        = "#cae1ff"
+let s:rgb["lightsteelblue2"]        = "#bcd2ee"
+let s:rgb["lightsteelblue3"]        = "#a2b5cd"
+let s:rgb["lightsteelblue4"]        = "#6e7b8b"
+let s:rgb["lightyellow"]            = "#ffffe0"
+let s:rgb["lightyellow1"]           = "#ffffe0"
+let s:rgb["lightyellow2"]           = "#eeeed1"
+let s:rgb["lightyellow3"]           = "#cdcdb4"
+let s:rgb["lightyellow4"]           = "#8b8b7a"
+let s:rgb["lime green"]             = "#32cd32"
+let s:rgb["limegreen"]              = "#32cd32"
+let s:rgb["linen"]                  = "#faf0e6"
+let s:rgb["magenta"]                = "#ff00ff"
+let s:rgb["magenta1"]               = "#ff00ff"
+let s:rgb["magenta2"]               = "#ee00ee"
+let s:rgb["magenta3"]               = "#cd00cd"
+let s:rgb["magenta4"]               = "#8b008b"
+let s:rgb["maroon"]                 = "#b03060"
+let s:rgb["maroon1"]                = "#ff34b3"
+let s:rgb["maroon2"]                = "#ee30a7"
+let s:rgb["maroon3"]                = "#cd2990"
+let s:rgb["maroon4"]                = "#8b1c62"
+let s:rgb["medium aquamarine"]      = "#66cdaa"
+let s:rgb["medium blue"]            = "#0000cd"
+let s:rgb["medium orchid"]          = "#ba55d3"
+let s:rgb["medium purple"]          = "#9370db"
+let s:rgb["medium sea green"]       = "#3cb371"
+let s:rgb["medium slate blue"]      = "#7b68ee"
+let s:rgb["medium spring green"]    = "#00fa9a"
+let s:rgb["medium turquoise"]       = "#48d1cc"
+let s:rgb["medium violet red"]      = "#c71585"
+let s:rgb["mediumaquamarine"]       = "#66cdaa"
+let s:rgb["mediumblue"]             = "#0000cd"
+let s:rgb["mediumorchid"]           = "#ba55d3"
+let s:rgb["mediumorchid1"]          = "#e066ff"
+let s:rgb["mediumorchid2"]          = "#d15fee"
+let s:rgb["mediumorchid3"]          = "#b452cd"
+let s:rgb["mediumorchid4"]          = "#7a378b"
+let s:rgb["mediumpurple"]           = "#9370db"
+let s:rgb["mediumpurple1"]          = "#ab82ff"
+let s:rgb["mediumpurple2"]          = "#9f79ee"
+let s:rgb["mediumpurple3"]          = "#8968cd"
+let s:rgb["mediumpurple4"]          = "#5d478b"
+let s:rgb["mediumseagreen"]         = "#3cb371"
+let s:rgb["mediumslateblue"]        = "#7b68ee"
+let s:rgb["mediumspringgreen"]      = "#00fa9a"
+let s:rgb["mediumturquoise"]        = "#48d1cc"
+let s:rgb["mediumvioletred"]        = "#c71585"
+let s:rgb["midnight blue"]          = "#191970"
+let s:rgb["midnightblue"]           = "#191970"
+let s:rgb["mint cream"]             = "#f5fffa"
+let s:rgb["mintcream"]              = "#f5fffa"
+let s:rgb["misty rose"]             = "#ffe4e1"
+let s:rgb["mistyrose"]              = "#ffe4e1"
+let s:rgb["mistyrose1"]             = "#ffe4e1"
+let s:rgb["mistyrose2"]             = "#eed5d2"
+let s:rgb["mistyrose3"]             = "#cdb7b5"
+let s:rgb["mistyrose4"]             = "#8b7d7b"
+let s:rgb["moccasin"]               = "#ffe4b5"
+let s:rgb["navajo white"]           = "#ffdead"
+let s:rgb["navajowhite"]            = "#ffdead"
+let s:rgb["navajowhite1"]           = "#ffdead"
+let s:rgb["navajowhite2"]           = "#eecfa1"
+let s:rgb["navajowhite3"]           = "#cdb38b"
+let s:rgb["navajowhite4"]           = "#8b795e"
+let s:rgb["navy blue"]              = "#000080"
+let s:rgb["navy"]                   = "#000080"
+let s:rgb["navyblue"]               = "#000080"
+let s:rgb["old lace"]               = "#fdf5e6"
+let s:rgb["oldlace"]                = "#fdf5e6"
+let s:rgb["olive drab"]             = "#6b8e23"
+let s:rgb["olivedrab"]              = "#6b8e23"
+let s:rgb["olivedrab1"]             = "#c0ff3e"
+let s:rgb["olivedrab2"]             = "#b3ee3a"
+let s:rgb["olivedrab3"]             = "#9acd32"
+let s:rgb["olivedrab4"]             = "#698b22"
+let s:rgb["orange red"]             = "#ff4500"
+let s:rgb["orange"]                 = "#ffa500"
+let s:rgb["orange1"]                = "#ffa500"
+let s:rgb["orange2"]                = "#ee9a00"
+let s:rgb["orange3"]                = "#cd8500"
+let s:rgb["orange4"]                = "#8b5a00"
+let s:rgb["orangered"]              = "#ff4500"
+let s:rgb["orangered1"]             = "#ff4500"
+let s:rgb["orangered2"]             = "#ee4000"
+let s:rgb["orangered3"]             = "#cd3700"
+let s:rgb["orangered4"]             = "#8b2500"
+let s:rgb["orchid"]                 = "#da70d6"
+let s:rgb["orchid1"]                = "#ff83fa"
+let s:rgb["orchid2"]                = "#ee7ae9"
+let s:rgb["orchid3"]                = "#cd69c9"
+let s:rgb["orchid4"]                = "#8b4789"
+let s:rgb["pale goldenrod"]         = "#eee8aa"
+let s:rgb["pale green"]             = "#98fb98"
+let s:rgb["pale turquoise"]         = "#afeeee"
+let s:rgb["pale violet red"]        = "#db7093"
+let s:rgb["palegoldenrod"]          = "#eee8aa"
+let s:rgb["palegreen"]              = "#98fb98"
+let s:rgb["palegreen1"]             = "#9aff9a"
+let s:rgb["palegreen2"]             = "#90ee90"
+let s:rgb["palegreen3"]             = "#7ccd7c"
+let s:rgb["palegreen4"]             = "#548b54"
+let s:rgb["paleturquoise"]          = "#afeeee"
+let s:rgb["paleturquoise1"]         = "#bbffff"
+let s:rgb["paleturquoise2"]         = "#aeeeee"
+let s:rgb["paleturquoise3"]         = "#96cdcd"
+let s:rgb["paleturquoise4"]         = "#668b8b"
+let s:rgb["palevioletred"]          = "#db7093"
+let s:rgb["palevioletred1"]         = "#ff82ab"
+let s:rgb["palevioletred2"]         = "#ee799f"
+let s:rgb["palevioletred3"]         = "#cd6889"
+let s:rgb["palevioletred4"]         = "#8b475d"
+let s:rgb["papaya whip"]            = "#ffefd5"
+let s:rgb["papayawhip"]             = "#ffefd5"
+let s:rgb["peach puff"]             = "#ffdab9"
+let s:rgb["peachpuff"]              = "#ffdab9"
+let s:rgb["peachpuff1"]             = "#ffdab9"
+let s:rgb["peachpuff2"]             = "#eecbad"
+let s:rgb["peachpuff3"]             = "#cdaf95"
+let s:rgb["peachpuff4"]             = "#8b7765"
+let s:rgb["peru"]                   = "#cd853f"
+let s:rgb["pink"]                   = "#ffc0cb"
+let s:rgb["pink1"]                  = "#ffb5c5"
+let s:rgb["pink2"]                  = "#eea9b8"
+let s:rgb["pink3"]                  = "#cd919e"
+let s:rgb["pink4"]                  = "#8b636c"
+let s:rgb["plum"]                   = "#dda0dd"
+let s:rgb["plum1"]                  = "#ffbbff"
+let s:rgb["plum2"]                  = "#eeaeee"
+let s:rgb["plum3"]                  = "#cd96cd"
+let s:rgb["plum4"]                  = "#8b668b"
+let s:rgb["powder blue"]            = "#b0e0e6"
+let s:rgb["powderblue"]             = "#b0e0e6"
+let s:rgb["purple"]                 = "#a020f0"
+let s:rgb["purple1"]                = "#9b30ff"
+let s:rgb["purple2"]                = "#912cee"
+let s:rgb["purple3"]                = "#7d26cd"
+let s:rgb["purple4"]                = "#551a8b"
+let s:rgb["red"]                    = "#ff0000"
+let s:rgb["red1"]                   = "#ff0000"
+let s:rgb["red2"]                   = "#ee0000"
+let s:rgb["red3"]                   = "#cd0000"
+let s:rgb["red4"]                   = "#8b0000"
+let s:rgb["rosy brown"]             = "#bc8f8f"
+let s:rgb["rosybrown"]              = "#bc8f8f"
+let s:rgb["rosybrown1"]             = "#ffc1c1"
+let s:rgb["rosybrown2"]             = "#eeb4b4"
+let s:rgb["rosybrown3"]             = "#cd9b9b"
+let s:rgb["rosybrown4"]             = "#8b6969"
+let s:rgb["royal blue"]             = "#4169e1"
+let s:rgb["royalblue"]              = "#4169e1"
+let s:rgb["royalblue1"]             = "#4876ff"
+let s:rgb["royalblue2"]             = "#436eee"
+let s:rgb["royalblue3"]             = "#3a5fcd"
+let s:rgb["royalblue4"]             = "#27408b"
+let s:rgb["saddle brown"]           = "#8b4513"
+let s:rgb["saddlebrown"]            = "#8b4513"
+let s:rgb["salmon"]                 = "#fa8072"
+let s:rgb["salmon1"]                = "#ff8c69"
+let s:rgb["salmon2"]                = "#ee8262"
+let s:rgb["salmon3"]                = "#cd7054"
+let s:rgb["salmon4"]                = "#8b4c39"
+let s:rgb["sandy brown"]            = "#f4a460"
+let s:rgb["sandybrown"]             = "#f4a460"
+let s:rgb["sea green"]              = "#2e8b57"
+let s:rgb["seagreen"]               = "#2e8b57"
+let s:rgb["seagreen1"]              = "#54ff9f"
+let s:rgb["seagreen2"]              = "#4eee94"
+let s:rgb["seagreen3"]              = "#43cd80"
+let s:rgb["seagreen4"]              = "#2e8b57"
+let s:rgb["seashell"]               = "#fff5ee"
+let s:rgb["seashell1"]              = "#fff5ee"
+let s:rgb["seashell2"]              = "#eee5de"
+let s:rgb["seashell3"]              = "#cdc5bf"
+let s:rgb["seashell4"]              = "#8b8682"
+let s:rgb["sienna"]                 = "#a0522d"
+let s:rgb["sienna1"]                = "#ff8247"
+let s:rgb["sienna2"]                = "#ee7942"
+let s:rgb["sienna3"]                = "#cd6839"
+let s:rgb["sienna4"]                = "#8b4726"
+let s:rgb["sky blue"]               = "#87ceeb"
+let s:rgb["skyblue"]                = "#87ceeb"
+let s:rgb["skyblue1"]               = "#87ceff"
+let s:rgb["skyblue2"]               = "#7ec0ee"
+let s:rgb["skyblue3"]               = "#6ca6cd"
+let s:rgb["skyblue4"]               = "#4a708b"
+let s:rgb["slate blue"]             = "#6a5acd"
+let s:rgb["slate gray"]             = "#708090"
+let s:rgb["slate grey"]             = "#708090"
+let s:rgb["slateblue"]              = "#6a5acd"
+let s:rgb["slateblue1"]             = "#836fff"
+let s:rgb["slateblue2"]             = "#7a67ee"
+let s:rgb["slateblue3"]             = "#6959cd"
+let s:rgb["slateblue4"]             = "#473c8b"
+let s:rgb["slategray"]              = "#708090"
+let s:rgb["slategray1"]             = "#c6e2ff"
+let s:rgb["slategray2"]             = "#b9d3ee"
+let s:rgb["slategray3"]             = "#9fb6cd"
+let s:rgb["slategray4"]             = "#6c7b8b"
+let s:rgb["slategrey"]              = "#708090"
+let s:rgb["snow"]                   = "#fffafa"
+let s:rgb["snow1"]                  = "#fffafa"
+let s:rgb["snow2"]                  = "#eee9e9"
+let s:rgb["snow3"]                  = "#cdc9c9"
+let s:rgb["snow4"]                  = "#8b8989"
+let s:rgb["spring green"]           = "#00ff7f"
+let s:rgb["springgreen"]            = "#00ff7f"
+let s:rgb["springgreen1"]           = "#00ff7f"
+let s:rgb["springgreen2"]           = "#00ee76"
+let s:rgb["springgreen3"]           = "#00cd66"
+let s:rgb["springgreen4"]           = "#008b45"
+let s:rgb["steel blue"]             = "#4682b4"
+let s:rgb["steelblue"]              = "#4682b4"
+let s:rgb["steelblue1"]             = "#63b8ff"
+let s:rgb["steelblue2"]             = "#5cacee"
+let s:rgb["steelblue3"]             = "#4f94cd"
+let s:rgb["steelblue4"]             = "#36648b"
+let s:rgb["tan"]                    = "#d2b48c"
+let s:rgb["tan1"]                   = "#ffa54f"
+let s:rgb["tan2"]                   = "#ee9a49"
+let s:rgb["tan3"]                   = "#cd853f"
+let s:rgb["tan4"]                   = "#8b5a2b"
+let s:rgb["thistle"]                = "#d8bfd8"
+let s:rgb["thistle1"]               = "#ffe1ff"
+let s:rgb["thistle2"]               = "#eed2ee"
+let s:rgb["thistle3"]               = "#cdb5cd"
+let s:rgb["thistle4"]               = "#8b7b8b"
+let s:rgb["tomato"]                 = "#ff6347"
+let s:rgb["tomato1"]                = "#ff6347"
+let s:rgb["tomato2"]                = "#ee5c42"
+let s:rgb["tomato3"]                = "#cd4f39"
+let s:rgb["tomato4"]                = "#8b3626"
+let s:rgb["turquoise"]              = "#40e0d0"
+let s:rgb["turquoise1"]             = "#00f5ff"
+let s:rgb["turquoise2"]             = "#00e5ee"
+let s:rgb["turquoise3"]             = "#00c5cd"
+let s:rgb["turquoise4"]             = "#00868b"
+let s:rgb["violet red"]             = "#d02090"
+let s:rgb["violet"]                 = "#ee82ee"
+let s:rgb["violetred"]              = "#d02090"
+let s:rgb["violetred1"]             = "#ff3e96"
+let s:rgb["violetred2"]             = "#ee3a8c"
+let s:rgb["violetred3"]             = "#cd3278"
+let s:rgb["violetred4"]             = "#8b2252"
+let s:rgb["wheat"]                  = "#f5deb3"
+let s:rgb["wheat1"]                 = "#ffe7ba"
+let s:rgb["wheat2"]                 = "#eed8ae"
+let s:rgb["wheat3"]                 = "#cdba96"
+let s:rgb["wheat4"]                 = "#8b7e66"
+let s:rgb["white smoke"]            = "#f5f5f5"
+let s:rgb["white"]                  = "#ffffff"
+let s:rgb["whitesmoke"]             = "#f5f5f5"
+let s:rgb["yellow green"]           = "#9acd32"
+let s:rgb["yellow"]                 = "#ffff00"
+let s:rgb["yellow1"]                = "#ffff00"
+let s:rgb["yellow2"]                = "#eeee00"
+let s:rgb["yellow3"]                = "#cdcd00"
+let s:rgb["yellow4"]                = "#8b8b00"
+let s:rgb["yellowgreen"]            = "#9acd32"
+
+if has('mac') && !has('macunix')
+  let s:rgb["dark gray"]     = "0x808080"
+  let s:rgb["darkgray"]      = "0x808080"
+  let s:rgb["dark grey"]     = "0x808080"
+  let s:rgb["darkgrey"]      = "0x808080"
+  let s:rgb["gray"]          = "0xc0c0c0"
+  let s:rgb["grey"]          = "0xc0c0c0"
+  let s:rgb["light gray"]    = "0xe0e0e0"
+  let s:rgb["lightgray"]     = "0xe0e0e0"
+  let s:rgb["light grey"]    = "0xe0e0e0"
+  let s:rgb["lightgrey"]     = "0xe0e0e0"
+  let s:rgb["dark red"]      = "0x800000"
+  let s:rgb["darkred"]       = "0x800000"
+  let s:rgb["red"]           = "0xdd0806"
+  let s:rgb["light red"]     = "0xffa0a0"
+  let s:rgb["lightred"]      = "0xffa0a0"
+  let s:rgb["dark blue"]     = "0x000080"
+  let s:rgb["darkblue"]      = "0x000080"
+  let s:rgb["blue"]          = "0x0000d4"
+  let s:rgb["light blue"]    = "0xa0a0ff"
+  let s:rgb["lightblue"]     = "0xa0a0ff"
+  let s:rgb["dark green"]    = "0x008000"
+  let s:rgb["darkgreen"]     = "0x008000"
+  let s:rgb["green"]         = "0x006411"
+  let s:rgb["light green"]   = "0xa0ffa0"
+  let s:rgb["lightgreen"]    = "0xa0ffa0"
+  let s:rgb["dark cyan"]     = "0x008080"
+  let s:rgb["darkcyan"]      = "0x008080"
+  let s:rgb["cyan"]          = "0x02abea"
+  let s:rgb["light cyan"]    = "0xa0ffff"
+  let s:rgb["lightcyan"]     = "0xa0ffff"
+  let s:rgb["dark magenta"]  = "0x800080"
+  let s:rgb["darkmagenta"]   = "0x800080"
+  let s:rgb["magenta"]       = "0xf20884"
+  let s:rgb["light magenta"] = "0xf0a0f0"
+  let s:rgb["lightmagenta"]  = "0xf0a0f0"
+  let s:rgb["brown"]         = "0x804040"
+  let s:rgb["yellow"]        = "0xfcf305"
+  let s:rgb["light yellow"]  = "0xffffa0"
+  let s:rgb["lightyellow"]   = "0xffffa0"
+  let s:rgb["orange"]        = "0xfc8000"
+  let s:rgb["purple"]        = "0xa020f0"
+  let s:rgb["slateblue"]     = "0x6a5acd"
+  let s:rgb["violet"]        = "0x8d38c9"
+endif
+
+function! csapprox#rgb()
+  return s:rgb
+endfunction

CSApprox/autoload/csapprox/common.vim

@@ -0,0 +1,78 @@
+" Copyright (c) 2012, Matthew J. Wozniski
+" All rights reserved.
+"
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are met:
+"     * Redistributions of source code must retain the above copyright
+"       notice, this list of conditions and the following disclaimer.
+"     * Redistributions in binary form must reproduce the above copyright
+"       notice, this list of conditions and the following disclaimer in the
+"       documentation and/or other materials provided with the distribution.
+"     * The names of the contributors may not be used to endorse or promote
+"       products derived from this software without specific prior written
+"       permission.
+"
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
+" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+let s:xterm_colors   = [ 0x00, 0x5F, 0x87, 0xAF, 0xD7, 0xFF ]
+let s:eterm_colors   = [ 0x00, 0x2A, 0x55, 0x7F, 0xAA, 0xD4 ]
+let s:konsole_colors = [ 0x00, 0x33, 0x66, 0x99, 0xCC, 0xFF ]
+let s:xterm_greys    = [ 0x08, 0x12, 0x1C, 0x26, 0x30, 0x3A,
+                       \ 0x44, 0x4E, 0x58, 0x62, 0x6C, 0x76,
+                       \ 0x80, 0x8A, 0x94, 0x9E, 0xA8, 0xB2,
+                       \ 0xBC, 0xC6, 0xD0, 0xDA, 0xE4, 0xEE ]
+
+let s:urxvt_colors   = [ 0x00, 0x8B, 0xCD, 0xFF ]
+let s:urxvt_greys    = [ 0x2E, 0x5C, 0x73, 0x8B,
+                       \ 0xA2, 0xB9, 0xD0, 0xE7 ]
+
+" Uses &term to determine which cube should be use.  If &term is set to
+" "xterm" or begins with "screen", the variables g:CSApprox_eterm and
+" g:CSApprox_konsole can be used to select a different palette.
+function! csapprox#common#PaletteType()
+  if &t_Co == 88
+    let type = 'urxvt'
+  elseif &term ==# 'xterm' || &term =~# '^screen' || &term==# 'builtin_gui'
+    if exists('g:CSApprox_konsole') && g:CSApprox_konsole
+      let type = 'konsole'
+    elseif exists('g:CSApprox_eterm') && g:CSApprox_eterm
+      let type = 'eterm'
+    else
+      let type = 'xterm'
+    endif
+  elseif &term =~? '^konsole'
+    " Konsole only used its own palette up til KDE 4.2.0
+    if executable('kde4-config') && system('kde4-config --kde-version') =~ '^4\.[10]\.'
+      let type = 'konsole'
+    elseif executable('kde-config') && system('kde-config --version') =~# 'KDE: 3\.'
+      let type = 'konsole'
+    else
+      let type = 'xterm'
+    endif
+  elseif &term =~? '^eterm'
+    let type = 'eterm'
+  else
+    let type = 'xterm'
+  endif
+
+  return type
+endfunction
+
+" Retrieve the list of greyscale ramp colors for the current palette
+function! csapprox#common#Greys()
+  return (&t_Co == 88 ? s:urxvt_greys : s:xterm_greys)
+endfunction
+
+" Retrieve the list of non-greyscale ramp colors for the current palette
+function! csapprox#common#Colors()
+  return s:{csapprox#common#PaletteType()}_colors
+endfunction

CSApprox/autoload/csapprox/per_component.vim

@@ -0,0 +1,91 @@
+" Copyright (c) 2012, Matthew J. Wozniski
+" All rights reserved.
+"
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are met:
+"     * Redistributions of source code must retain the above copyright
+"       notice, this list of conditions and the following disclaimer.
+"     * Redistributions in binary form must reproduce the above copyright
+"       notice, this list of conditions and the following disclaimer in the
+"       documentation and/or other materials provided with the distribution.
+"     * The names of the contributors may not be used to endorse or promote
+"       products derived from this software without specific prior written
+"       permission.
+"
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
+" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+" Integer comparator used to sort the complete list of possible colors
+function! s:IntCompare(i1, i2)
+  return a:i1 == a:i2 ? 0 : a:i1 > a:i2 ? 1 : -1
+endfunc
+
+" Color comparator to find the nearest element to a given one in a given list
+function! s:NearestElemInList(elem, list)
+  let len = len(a:list)
+  for i in range(len-1)
+    if (a:elem <= (a:list[i] + a:list[i+1]) / 2)
+      return a:list[i]
+    endif
+  endfor
+  return a:list[len-1]
+endfunction
+
+" Takes 3 decimal values for r, g, and b, and returns the closest cube number.
+"
+" This approximator considers closeness based upon the individiual components.
+" For each of r, g, and b, it finds the closest cube component available on
+" the cube.  If the three closest matches can combine to form a valid color,
+" this color is used, otherwise we repeat the search with the greys removed,
+" meaning that the three new matches must make a valid color when combined.
+function! csapprox#per_component#Approximate(r,g,b)
+  let hex = printf("%02x%02x%02x", a:r, a:g, a:b)
+
+  let colors = csapprox#common#Colors()
+  let greys = csapprox#common#Greys()
+  let type = csapprox#common#PaletteType()
+
+  if !exists('s:approximator_cache_'.type)
+    let s:approximator_cache_{type} = {}
+  endif
+
+  let rv = get(s:approximator_cache_{type}, hex, -1)
+  if rv != -1
+    return rv
+  endif
+
+  " Only obtain sorted list once
+  if !exists("s:".type."_greys_colors")
+    let s:{type}_greys_colors = sort(greys + colors, "s:IntCompare")
+  endif
+
+  let greys_colors = s:{type}_greys_colors
+
+  let r = s:NearestElemInList(a:r, greys_colors)
+  let g = s:NearestElemInList(a:g, greys_colors)
+  let b = s:NearestElemInList(a:b, greys_colors)
+
+  let len = len(colors)
+  if (r == g && g == b && index(greys, r) != -1)
+    let rv = 16 + len * len * len + index(greys, r)
+  else
+    let r = s:NearestElemInList(a:r, colors)
+    let g = s:NearestElemInList(a:g, colors)
+    let b = s:NearestElemInList(a:b, colors)
+    let rv = index(colors, r) * len * len
+         \ + index(colors, g) * len
+         \ + index(colors, b)
+         \ + 16
+  endif
+
+  let s:approximator_cache_{type}[hex] = rv
+  return rv
+endfunction

CSApprox/plugin/CSApprox.vim

@@ -0,0 +1,921 @@
+" CSApprox:    Make gvim-only colorschemes Just Work terminal vim
+" Maintainer:  Matthew Wozniski (godlygeek@gmail.com)
+" Date:        Fri, 14 Sep 2012 01:12:13 -0400
+" Version:     4.00
+" History:     :help csapprox-changelog
+"
+" Long Description:
+" It's hard to find colorschemes for terminal Vim.  Most colorschemes are
+" written to only support GVim, and don't work at all in terminal Vim.
+"
+" This plugin makes GVim-only colorschemes Just Work in terminal Vim, as long
+" as the terminal supports 88 or 256 colors - and most do these days.  This
+" usually requires no user interaction (but see below for what to do if things
+" don't Just Work).  After getting this plugin happily installed, any time you
+" use :colorscheme it will do its magic and make the colorscheme Just Work.
+"
+" Whenever you change colorschemes using the :colorscheme command this script
+" will be executed.  It will take the colors that the scheme specified for use
+" in the GUI and use an approximation algorithm to try to gracefully degrade
+" them to the closest color available in your terminal.  If you are running in
+" a GUI or if your terminal doesn't support 88 or 256 colors, no changes are
+" made.  Also, no changes will be made if the colorscheme seems to have been
+" high color already.
+"
+" License:
+" Copyright (c) 2012, Matthew J. Wozniski
+" All rights reserved.
+"
+" Redistribution and use in source and binary forms, with or without
+" modification, are permitted provided that the following conditions are met:
+"     * Redistributions of source code must retain the above copyright
+"       notice, this list of conditions and the following disclaimer.
+"     * Redistributions in binary form must reproduce the above copyright
+"       notice, this list of conditions and the following disclaimer in the
+"       documentation and/or other materials provided with the distribution.
+"     * The names of the contributors may not be used to endorse or promote
+"       products derived from this software without specific prior written
+"       permission.
+"
+" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER ``AS IS'' AND ANY
+" EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+" DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
+" DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+" ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+" SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+" {>1} Basic plugin setup
+
+" {>2} Check preconditions
+" Quit if the user doesn't want or need us or is missing the gui feature.  We
+" need +gui to be able to check the gui color settings; vim doesn't bother to
+" store them if it is not built with +gui.
+if exists('g:CSApprox_loaded')
+  finish
+elseif !has('gui') && v:version < 703
+  " Vim versions less than < 7.3.0 need +gui.
+  " Warn unless the user set g:CSApprox_verbose_level to zero.
+  if get(g:, 'CSApprox_verbose_level', 1)
+    echomsg "CSApprox needs gui support - not loading."
+    echomsg "  See :help |csapprox-+gui| for possible workarounds."
+  endif
+
+  finish
+endif
+
+" {1} Mark us as loaded, and disable all compatibility options for now.
+let g:CSApprox_loaded = 1
+