Aggiunta impostazioni base vim.
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238
vim/plugin/let-modeline.vim
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238
vim/plugin/let-modeline.vim
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" example -> VIM: let b:toto="foo" g:tata=4 g:egal="t=y".&tw
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" ===========================================================================
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" $Id$
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" File: let-modeline.vim {{{1
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" Author: Luc Hermitte <EMAIL:hermitte {at} free {dot} fr>
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" <URL:http://hermitte.free.fr/vim/>
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" URL: http://code.google.com/p/lh-vim/source/browse/misc/trunk/plugin/let-modeline.vim
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" Version: 1.9
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" Last Update: 21st Apr 2011 ($Date$)
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"
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" Purpose: {{{2
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" Defines the function : FirstModeLine() that extends the VIM modeline
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" feature to variables. In VIM, it is possible to set options in the
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" first and last lines. -> :h modeline
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" The function proposed extends it to 'let {var}={val}' affectations.
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"
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" Exemples Of Useful Aplications: {{{2
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" Typical Example: {{{3
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" When editing a LaTeX document composed of several files, it is very
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" practical to know the name of the main file whichever file is edited --
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" TKlatex does this thanks the global variable g:TeXfile. Hence it knows
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" that latex should be called on this main file ; aux2tags.vim could also
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" be told to compute the associated .aux file.
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" Anyway. Defining (through menus or a let command) g:TeXfile each time is
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" really boring. It bored me so much that I programmed a first version of
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" this script. In every file of one of my projects I added the line :
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" % VIM: let g:TeXfile=main.tex
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" [main.tex is the name of the main file of the project]
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" Thus, I can very simply call LaTeX from within VIM without having to
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" wonder which file is the main one nor having to specify g:TeXfile each
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" time.
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"
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" Using Callback Functions: {{{3
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" Actually, in order to affect g:TeXfile, I have to call another function.
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" Hence, I define a callback function (in my (La)TeX ftplugin) that checks
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" whether I want to set g:TeXfile. In that case, the callback function
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" calls the right function and return true. Otherwise, it returns false.
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" You will find the code of this precise callback function as an example at
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" the end of this file.
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"
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" Tune C Compilations: {{{3
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" An easy way to tune the parameters of the compilation of simple programs
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" without having to maintain a makefile:
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" // VIM: let $CPPFLAGS='-I../../libs':
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"
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" ---------------------------------------------------------------------------
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" Format: {{{2
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" On the _first_ line of any file, the extended modeline format is:
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" {line} ::= [text]{white}VIM:[white]let{affectations}
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" {affectations} ::= {sgl_affect.}
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" {affectations} ::= {sgl_affect.}{white}{affectations}
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" {sgl_affect.} ::= {variable}[white]=[white]{value}
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" {variable} ::= cf. vim variable format ; beware simple
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" variables (other than global-, buffer-,
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" or window-variables) are not exported.
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" Can also be an environment variable -> $VAR.
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" {value} ::= string or numeral value : no function
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" call allowed.
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"
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" Options: {{2
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" (*) 'modeline' : vim-option that must be set to 1
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" (*) 'modelines': vim-option corrsponding to the number of lines
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" searched.
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" (*) b:ModeLine_CallBack(var,val) : callback function
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" Enable to define callback functions when needed. cf. lhlatex.vim
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"
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" Installation: {{{2
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" (*) Drop the file into your {rtp}/plugin/ folder.
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"
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" Remarks: {{{2
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" (*) The only way to call a function is through the callback feature.
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" Affectation like 'let g:foo="abc".DEF()' are recognized and
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" forbiden.
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" (*) The modeline is recognized thanks to "VIM" in that *must* be in
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" uppercase letters
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"
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" Changes: {{{2
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" v1.9: @/ is preserved
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" v1.8: autocommands moved to the plugin
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" v1.7: Optimizations
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" v1.6: Support for environment variables.
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" vim 6.x only
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" Doesn't check into folded lines anymore
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" v1.5: Check that the format of the variables and values is correct
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" before it tries to set the variables -> no more error messages
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" when using 2html.vim.
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" v1.4: With Vim 6.x, it doesn't mess anymore with the search history
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" v1.3: Parse several lines according to &modelines and &modeline
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" v1.2: no-reinclusion mecanism
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" v1.1b: extend variable names to accept underscores
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"
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" Todo: {{{2
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" (*) Enforce the patterns and the resulting errors
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" (*) Permit to have comments ending characters at the end of the line.
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" (*) Simplify the regexps
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"
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" }}}1
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" ===========================================================================
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" Definitions: {{{1
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if exists("g:loaded_let_modeline") && ! exists('g:force_reload_let_modeline') | finish | endif
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let g:loaded_let_modeline = 1
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" Internal function dedicated to the recognition of function calls {{{2
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function! s:FoundFunctionCall(value_str)
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let str = substitute(a:value_str, '"[^"]*"', '', 'g')
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let str = substitute(str, "'[^']*'", '', 'g')
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return match(str, '(.*)') != -1
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endfunction
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let s:re_var = '\s\+\([[:alnum:]:_$]\+\)'
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" beware the comments ending characters
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let s:re_val = '\(\%(' . "'[^']*'" . '\|"[^"]*"\|[-a-zA-Z0-9:_.&$]\)\+\)$'
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let s:re_other = '^\(.\{-}\)'
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let s:re_sub = s:re_other . s:re_var . '\s*=\s*' . s:re_val
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" Internal function dedicated to the parsing of a line {{{2
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function! FML_parse_line(mtch)
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" call confirm('Find:'.a:mtch, '&ok', 1)
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if a:mtch !=""
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let mtch = a:mtch
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while strlen(mtch) != 0
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let vari = substitute( mtch, s:re_sub, '\2', '' )
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let valu = substitute( mtch, s:re_sub, '\3', '' )
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" call confirm('regex: '.s:re_sub."\nmtch: <<".mtch.">>\nvar: ".vari."\nval: ".valu, '&ok', 1)
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if (vari !~ '^[[:alnum:]:_$]\+$') || (valu !~ s:re_val)
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return
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endif
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" Check : no function !
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if s:FoundFunctionCall(valu)
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echohl ErrorMsg
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echo "Find a function call in the affectation : let " . vari . " = " . valu
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echohl None
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return
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endif
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let mtch = substitute( mtch, s:re_sub, '\1', '' )
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""echo vari . " = " . valu . " --- " . mtch . "\n"
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" call confirm('vari: '.vari.' = '.valu." --- " . mtch, '&Ok', 1)
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if exists("b:ModeLine_CallBack")
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exe 'let res = '. b:ModeLine_CallBack . '("'.vari.'","'.valu.'")'
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if res == 1 | return | endif
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endif
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" Else
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execute "let " . vari . " = " . valu
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endwhile
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endif
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endfunction
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" Internal function dedicated searching the matching lines {{{2
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" let s:modeline_pat = '[vV][iI][mM]\d*:\s*let\s*\zs.*$'
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let s:modeline_pat = '[vV][iI][mM]\d*:\s*let\zs.*$'
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function! s:Do_it_on_range(first, last)
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if &verbose >= 2 " {{{
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echo "\n->"a:first.','.a:last. 'g/'.s:modeline_pat.
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\ '/:call FML_parse_line(matchstr(getline("."),"'.
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\ escape(s:modeline_pat, '\\') .'"))'
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endif " }}}
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let s:save_fold_enable= &foldenable
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set nofoldenable
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if exists(':try')
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try
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let s = @/
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silent execute a:first.','.a:last. 'g/'.s:modeline_pat.
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\ '/:call FML_parse_line(matchstr(getline("."),"'.
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\ escape(s:modeline_pat, '\\') .'"))'
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" Purge the history for the search pattern just used.
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call histdel('search', -1)
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finally
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let @/ = s
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let &foldenable = s:save_fold_enable
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endtry
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else " Older versions of Vim
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silent execute a:first.','.a:last. 'g/'.s:modeline_pat.
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\ '/:call FML_parse_line(matchstr(getline("."),"'.
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\ escape(s:modeline_pat, '\\') .'"))'
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" Purge the history for the search pattern just used.
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call histdel('search', -1)
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let &foldenable = s:save_fold_enable
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endif
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endfunction
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" The main function {{{2
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function! FirstModeLine()
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if !&modeline | return | endif
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let pos = line('.') . 'normal! ' . virtcol('.') . '|'
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let e1 = 1+&modelines-1
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let b2 = line('$') - &modelines+1
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" call confirm('e1='.e1."\nb2=".b2, '&ok', 1)
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if e1 >= b2
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call s:Do_it_on_range(1, line('$'))
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else
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call s:Do_it_on_range(1, e1)
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call s:Do_it_on_range(b2, line('$'))
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endif
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if !exists('b:this_is_new_buffer')
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exe pos
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else
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unlet b:this_is_new_buffer
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endif
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" call confirm('fini!', '&ok', 1)
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endfunction
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" }}}2
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" autocommand {{{2
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aug LetModeline
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au!
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au BufReadPost * :call FirstModeLine()
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" To not interfere with Templates loaders
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" au BufNewFile * :let b:this_is_new_buffer=1
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" Modeline interpretation
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" au BufEnter * :call FirstModeLine()
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aug END
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" }}}1
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" ===========================================================================
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" Example of a callback function {{{1
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" Version I use in my (La)TeX ftplugin
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if 0
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let b:ModeLine_CallBack = "TeXModeLine_CallBack"
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function! TeXModeLine_CallBack(var,val)
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if match(a:var, "g:TeXfile") != -1
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" restore quotes around the file name
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"let valu = substitute( valu, '^"\=\([[:alnum:].]\+\)"\=$', '"\1"', '' )
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call TKSetTeXfileName( 2, a:val )
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return 1
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else
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return 0
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endif
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endfunction
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endif
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" }}}1
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" ===========================================================================
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" vim600: set fdm=marker:
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