c4ctrl/c4ctrl.vim
2017-04-11 21:05:16 +02:00

313 lines
10 KiB
VimL

" This Vim plugin makes some functionality of the c4ctrl utility available
" from within Vim.
"
" Last Change: 2017 Apr 11
" Maintainer: Shy
" License: This file is placed in the public domain.
"
" Usage: C4ctrl [get | open PRESET | set [w] [p] [f] [-magic] | text |
" write PRESET]
if exists("g:loaded_c4ctrl")
finish
endif
let g:loaded_c4ctrl = 1
function s:FindConfigDir()
" ************************************************ "
" Returns the path of the configuration directory, "
" eg. '/home/somepony/.config/c4ctrl/' "
" ************************************************ "
" Run only once
if exists("s:config_dir")
return s:config_dir
endif
if expand("$XDG_CONFIG_DIR") != "$XDG_CONFIG_DIR"
let s:config_dir = expand("$XDG_CONFIG_DIR/c4ctrl/")
else
let s:config_dir = expand("$HOME/.config/c4ctrl/")
endif
if !isdirectory(s:config_dir)
echo "Could not access config dir:" s:config_dir
return ""
endif
return s:config_dir
endfunction
function C4ctrl(prev_cursor_pos, mods, first_line, last_line, command, ...) range
" *********************************************************************** "
" Make some functionality of the 'c4ctrl' command line utility available "
" from within Vim. "
" Available commands are 'get', 'open', 'set', 'text' and 'write'. "
" Arguments: "
" prev_cursor_pos -- cursor position as returned by getcurpos() "
" mods -- modifiers (:command variable <f-mods>) "
" first_line -- first line of range (:command <line1> "
" last_line -- last line of range (:command <line2> "
" command -- user command ('get', 'set' etc.) "
" [command options] -- optional command options "
" *********************************************************************** "
" Name of the executable.
let s:c4ctrl = "c4ctrl"
" This function will be called after a preset file has been loaded
" into the buffer.
function! s:SynHighlight()
" Match topics
syn match Identifier "\c^\s*[0-9a-z/]*\ze\s*="
" Match color values with 3 digits
syn match Number "\c=\s*\zs\(\s*[0-9a-f]\)\{3}"
" Match color values with 6 digits
syn match Number "\c=\s*\zs\(\s*[0-9a-f]\)\{6}"
" Match comments
syn match Comment "^\s*[#!\"].*"
" Match error: too few digits
syn match Error "\c=\s*\zs[0-9a-f]\{1,2}$"
" Match error: invalid chars as digit
syn match Error "\c=\s*\zs.*[^ \t0-9a-f]\+.*"
endfunction
" Check if we can excute c4ctrl or c4ctrl.py and modify the variable
" s:c4ctrl accordingly
if !executable(s:c4ctrl)
" Maybe we just need to add .py to the command?
if executable(s:c4ctrl.".py")
let s:c4ctrl .= ".py"
else
echoerr "Executable not found! Please put \"".s:c4ctrl."\" into your $PATH."
unlet s:c4ctrl
return
endif
endif
if stridx("get", a:command) == 0
" *********************************** "
" Read current status into new buffer "
" *********************************** "
execute a:mods "new"
silent execute "0 read !" s:c4ctrl "-o -"
normal 0gg
call s:SynHighlight()
elseif stridx("open", a:command) == 0
" ********************** "
" Edit an exiting preset "
" ********************** "
if !exists("a:1")
echo "Missing filename!"
return
endif
let s:config_dir = s:FindConfigDir()
if s:config_dir == ""
return
endif
let filename = s:config_dir . a:1
if !filereadable(filename)
echoerr "Error: could not open file" filename
return
endif
execute a:mods "new"
execute "edit" fnameescape(filename)
call s:SynHighlight()
elseif stridx("set", a:command) == 0
" ****************************** "
" Set preset from current buffer "
" ****************************** "
" Let's start by building a command line
let command_line = s:c4ctrl
if a:0 == 0
" If no room is given, set colors for all rooms
let command_line .= " -w - -p - -f -"
endif
for i in range(a:0)
let arg = a:000[i]
for room in ["wohnzimmer", "plenarsaal", "fnordcenter"]
if stridx(room, arg) == 0
let command_line = printf("%s -%s -", command_line, arg[0])
endif
endfor
if stridx("-magic", arg) == 0
let command_line = printf("%s --magic", command_line)
endif
endfor
silent let ret = system(command_line, getline(a:first_line, a:last_line))
" Restore cursor position
call setpos('.', a:prev_cursor_pos)
elseif stridx("text", a:command) == 0
" ********************************************** "
" Send line under the cursor to the Kitchenlight "
" ********************************************** "
" Strip any ','
let txt = substitute(getline("."), ",", "", "g")
let ret = system(printf("%s -k text,%s", s:c4ctrl, shellescape(txt)))
elseif stridx("write", substitute(a:command, "!$", "", "")) == 0
" ********************************* "
" Save preset into config directory "
" ********************************* "
if !exists("a:1")
echo "Missing filename!"
return
endif
let s:config_dir = s:FindConfigDir()
if s:config_dir == ""
return
endif
let filename = s:config_dir . a:1
if strridx(a:command, "!") + 1 == len(a:command)
" Force if a '!' was appended to the command
execute "saveas!" fnameescape(filename)
else
execute "saveas" fnameescape(filename)
endif
else
" ****************** "
" Unknown command oO "
" ****************** "
echo "Unknown command:" a:command
echo "Valid commands are get, open, set, text and write"
endif
" Echo return if shell exited with an error
if v:shell_error
if exists("ret")
echoerr ret
endif
endif
unlet! s:c4ctrl s:config_dir
delfunction s:SynHighlight
endfunction
function s:C4ctrlCompletion(ArgLead, CmdLine, CursorPos)
" ****************************** "
" Custom command line completion "
" ****************************** "
" The name of the command we are adding to Vim
let command_name = "C4ctrl"
" A list of current cmd line arguments, starting from the first letter
let command_line = split(strpart(a:CmdLine, match(a:CmdLine, "[A-Z]")))
" Check out if our name was abbreviated and modify accordingly
while index(command_line, command_name) == -1
let command_name = strpart(command_name, 0, len(command_name) - 1)
if len(command_name) == 0
" This should never happen, but let's not risk an infinite loop anyway
return ""
endif
endwhile
" Position of our command in the command line
let command_index = index(command_line, command_name)
try " We use the matching finally for cleaning up
if stridx("open", get(command_line, command_index + 1)) == 0 || (len(command_line) == command_index + 1 && a:ArgLead == command_name)
" *************************** "
" Complete the 'open' command "
" *************************** "
" ^ Note: the seconds part of the if rule above (the part after '||')
" will eval to true if a filename matches our command name better than
" the actually given command name (eg. ':C4 open C4c')
if a:ArgLead != ""
if len(command_line) == command_index + 2
return "open"
endif
elseif len(command_line) > command_index + 2
" Do not return more than one file name
return ""
endif
let s:config_dir = s:FindConfigDir()
if s:config_dir == ""
return ""
endif
return join(map(glob(s:config_dir."*", 0, 1), "fnamemodify(v:val, ':t')"), "\n")
elseif stridx("get", get(command_line, command_index + 1)) == 0
" ************************** "
" Complete the 'get' command "
" ************************** "
if a:ArgLead != ""
return "get"
endif
return ""
elseif stridx("set", get(command_line, command_index + 1)) == 0
" ************************** "
" Complete the 'set' command "
" ************************** "
if a:ArgLead != ""
return "set\n-magic"
endif
return "wohnzimmer\nplenarsaal\nfnordcenter\n-magic"
elseif stridx("text", get(command_line, command_index + 1)) == 0
" *************************** "
" Complete the 'text' command "
" *************************** "
if a:ArgLead != ""
return "text"
endif
return ""
elseif stridx("write", get(command_line, command_index + 1)) == 0 || (len(command_line) == command_index + 1 && a:ArgLead == command_name)
" **************************** "
" Complete the 'write' command "
" **************************** "
" ^ Note: the seconds part of the if rule above (the part after '||')
" will eval to true if a filename matches our command name better than
" the actually given command name (eg. ':C4 open C4c')
if a:ArgLead != ""
if len(command_line) == command_index + 2
return "write"
endif
elseif len(command_line) > command_index + 2
" Do not return more than one file name
return ""
endif
let s:config_dir = s:FindConfigDir()
if s:config_dir == ""
return ""
endif
return join(map(glob(s:config_dir."*", 0, 1), "fnamemodify(v:val, ':t')"), "\n")
elseif len(command_line) == command_index + 1
" ************************** "
" Complete the first command "
" ************************** "
return "get\nopen\nset\ntext\nwrite"
else
return ""
endif
finally
unlet! s:config_dir
endtry
endfunction
if !exists(":C4ctrl")
" ********************** "
" Add our command to Vim "
" ********************** "
command -nargs=+ -complete=custom,s:C4ctrlCompletion -range=% C4ctrl call C4ctrl(getcurpos(), <f-mods>, <line1>, <line2>, <f-args>)
endif