103 lines
3.1 KiB
VimL
103 lines
3.1 KiB
VimL
|
"=============================================================================
|
||
|
|
" File: smartspace.vim
|
||
|
|
" Author: Carl Muller
|
||
|
|
" Created: Fri Dec 06 12:00 AM 2002 PST
|
||
|
|
"
|
||
|
|
" Description:
|
||
|
|
" Maps the <space> key in insert mode so that mathematical formulaes are
|
||
|
|
" always kept on the same line. i.e, $$'s dont get broken across multiple
|
||
|
|
" lines.
|
||
|
|
"=============================================================================
|
||
|
|
|
||
|
|
" Avoid reinclusion or if the user doesn't want us.
|
||
|
|
if exists('b:done_smartspace')
|
||
|
|
\ || (exists('g:Tex_SmartKeySpace') && !g:Tex_SmartKeySpace)
|
||
|
|
finish
|
||
|
|
endif
|
||
|
|
let b:done_smartspace = 1
|
||
|
|
|
||
|
|
" Smart space relies on taking over vim's insertion of carriage returns in
|
||
|
|
" order to keep $$'s on the same line. The only way to get vim not to break
|
||
|
|
" lines is to set tw=0.
|
||
|
|
"
|
||
|
|
" NOTE: setting tw != 0 will break smartspace
|
||
|
|
" the user's 'tw' setting is still respected in the insert mode.
|
||
|
|
" However, normal mode actions which rely on 'tw' such as gqap will be
|
||
|
|
" broken because of the faulty 'tw' setting.
|
||
|
|
let b:tw = &l:tw
|
||
|
|
setlocal tw=0
|
||
|
|
|
||
|
|
inoremap <buffer> <silent> <Space> <Space><Esc>:call <SID>TexFill(b:tw)<CR>a
|
||
|
|
|
||
|
|
" Do not redefine the function.
|
||
|
|
if exists('*s:TexFill')
|
||
|
|
finish
|
||
|
|
endif
|
||
|
|
|
||
|
|
" TexFormatLine: format line retaining $$'s on the same line. {{{
|
||
|
|
function! s:TexFill(width)
|
||
|
|
if a:width != 0 && col(".") > a:width
|
||
|
|
" For future use, record the current line and the number of the current column
|
||
|
|
let current_line = getline(".")
|
||
|
|
let current_column = col(".")
|
||
|
|
exe "normal! a##\<Esc>"
|
||
|
|
call <SID>TexFormatLine(a:width,current_line,current_column)
|
||
|
|
exe "normal! ?##\<CR>2s\<Esc>"
|
||
|
|
" Remove ## from the search history.
|
||
|
|
call histdel("/", -1)|let @/=histget("/", -1)
|
||
|
|
endif
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" }}}
|
||
|
|
function! s:TexFormatLine(width, current_line, current_column) " {{{
|
||
|
|
" get the first non-blank character.
|
||
|
|
let first = matchstr(getline('.'), '\S')
|
||
|
|
normal! $
|
||
|
|
let length = col('.')
|
||
|
|
let go = 1
|
||
|
|
while length > a:width+2 && go
|
||
|
|
let between = 0
|
||
|
|
let string = strpart(getline('.'), 0, a:width)
|
||
|
|
" Count the dollar signs
|
||
|
|
let number_of_dollars = 0
|
||
|
|
let evendollars = 1
|
||
|
|
let counter = 0
|
||
|
|
while counter <= a:width-1
|
||
|
|
" Pay attention to '$$'.
|
||
|
|
if string[counter] == '$' && string[counter-1] != '$'
|
||
|
|
let evendollars = 1 - evendollars
|
||
|
|
let number_of_dollars = number_of_dollars + 1
|
||
|
|
endif
|
||
|
|
let counter = counter + 1
|
||
|
|
endwhile
|
||
|
|
" Get ready to split the line.
|
||
|
|
exe 'normal! ' . (a:width + 1) . '|'
|
||
|
|
if evendollars
|
||
|
|
" Then you are not between dollars.
|
||
|
|
exe "normal! ?\\$\\+\\| \<CR>W"
|
||
|
|
else
|
||
|
|
" Then you are between dollars.
|
||
|
|
normal! F$
|
||
|
|
if col(".") == 1 || getline('.')[col(".")-1] != "$"
|
||
|
|
let go = 0
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
if first == '$' && number_of_dollars == 1
|
||
|
|
let go = 0
|
||
|
|
else
|
||
|
|
exe "normal! i\<CR>\<Esc>$"
|
||
|
|
" get the first non-blank character.
|
||
|
|
let first = matchstr(getline('.'), '\S')
|
||
|
|
endif
|
||
|
|
let length = col(".")
|
||
|
|
endwhile
|
||
|
|
if go == 0 && strpart(a:current_line, 0, a:current_column) =~ '.*\$.*\$.*'
|
||
|
|
exe "normal! ^f$a\<CR>\<Esc>"
|
||
|
|
call <SID>TexFormatLine(a:width, a:current_line, a:current_column)
|
||
|
|
endif
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" }}}
|
||
|
|
|
||
|
|
" vim:fdm=marker:ts=4:sw=4:noet
|