Update of /cvsroot/vim-latex/vimfiles/ftplugin/tex
In directory sc8-pr-cvs1:/tmp/cvs-serv19171
Added Files:
smartspace.vim
Log Message:
Carl Muellers contribution:
Maps the <space> key in insert mode so that mathematical formulaes are
always kept on the same line. i.e, $$'s dont get broken across multiple
lines.
NOTE: Using this ftplugin sets 'tw' = 0. If you set tw != 0, after sourcing
this ftplugin, unpredictable things might happen. If you really want &tw !=
0, disable this plugin by setting g:Tex_SmartKeySpace = 0.
--- NEW FILE: smartspace.vim ---
"=============================================================================
" File: smartspace.vim
" Author: Carl Muller
" Created: Fri Dec 06 12:00 AM 2002 PST
" Last Change: Fri Dec 06 12:00 AM 2002 PST
"
" Description:
" Maps the <space> key in insert mode so that mathematical formulaes are
" always kept on the same line. i.e, $$'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 $$'s on the same line. The only way to get vim not to break
" lines is to set tw=0.
"
" NOTE: setting tw != 0 will break smartspace
" the user's 'tw' setting is still respected in the insert mode.
" However, normal mode actions which rely on 'tw' such as gqap will be
" broken because of the faulty 'tw' setting.
if &l:tw > 0
let b:tw = &l:tw
else
let b:tw = 79
endif
setlocal tw=0
inoremap <buffer> <silent> <Space> <Space><Esc>:call <SID>TexFill(b:tw)<CR>a
" Do not redefine the function.
if exists('*s:TexFill')
finish
endif
" TexFormatLine: format line retaining $$'s on the same line.
function! s:TexFill(width) " {{{
if col(".") > a:width
exe "normal! a##\<Esc>"
call <SID>TexFormatLine(a:width)
exe "normal! ?##\<CR>2s\<Esc>"
endif
endfunction
" }}}
function! s:TexFormatLine(width) " {{{
let first = strpart(getline(line(".")),0,1)
normal! $
let length = col(".")
let go = 1
while length > a:width+2 && go
let between = 0
let string = strpart(getline(line(".")),0,a:width)
" Count the dollar signs
let number_of_dollars = 0
let evendollars = 1
let counter = 0
while counter <= a:width-1
if string[counter] == '$' && string[counter-1] != '\' " Skip \$.
let evendollars = 1 - evendollars
let number_of_dollars = number_of_dollars + 1
endif
let counter = counter + 1
endwhile
" Get ready to split the line.
exe "normal! " . (a:width + 1) . "|"
if evendollars
" Then you are not between dollars.
exe "normal! ?\\$\\| \<CR>W"
else
" Then you are between dollars.
normal! F$
if col(".") == 1 || strpart(getline(line(".")),col(".")-1,1) != "$"
let go = 0
endif
endif
if first == '$' && number_of_dollars == 1
let go = 0
else
exe "normal! i\<CR>\<Esc>$"
let first = strpart(getline(line(".")),0,1)
endif
let length = col(".")
endwhile
endfunction
" }}}
" vim:fdm=marker:ts=4:sw=4:noet
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