"-------------------------------------------------------------------------------
" ~/.vimrc-short-en                         (C) 2004-2025 T.Birnthaler OSTC GmbH
" Vim configuration (rename to "~/.vimrc"!)
" (emtpy lines not allowed --> change them to comment lines via "...)
"-------------------------------------------------------------------------------
" No Vi emulation, but activate Vim and all it's extensions
set nocompatible

" During "insertion" of text from another windows via X windows mouse select
" switch on/off a lot of Vim special functionality via key <F10>
" (just activate during insert mode, otherwise too much will be deactivated!)
" 'paste' --> 'textwidth=0'
" 'paste' --> 'wrapmargin=0'
" 'paste' --> 'noautoindent'
" 'paste' --> 'nosmartindent'
" 'paste' --> 'nocindent'
" 'paste' --> 'softtabstop=0'
" 'paste' --> 'nolisp'
" 'paste' --> 'norevins'
" 'paste' --> 'noruler'
" 'paste' --> 'noshowmatch'
" 'paste' --> 'formatoptions=<LEER>'
set nopaste
set paste
set pastetoggle=<F10>         " same as map <F10> :set invpaste/<BS><CR>

" Switch line numbering on/off
set number
set nonumber

" (Don't) show tabulators and line endings
" (list mode --> "^I" for tabulators and "$" for line endings)
set list
set nolist

" * Show status line at bottom (0=never, 1=2 windows or more, 2=always)
" * Vim mode (INSERT, VISUAL, ...)
" * Current Vim command (till complete)
" * Current line,column + relative file position (All, Top, Bot, NN%)
" * Change of more than 0 lines --> number of affected lines
set laststatus=2
set showmode
set showcmd
set ruler
set report=0

" Show hint in status line if more than N changed/deleted/inserted lines
" (one of both lines works!)
set report=0
set report=1

" Title line of terminal window will display file name
set title
set icon

" Mark opening parentheses shortly (0.5s) when inserting corresp. closing one 
" (mps = matchpairs)
" Mark corresponding parentheses while cursor on a parentheses
" (respects type ([{<>}]) and hierarchical nesting!)
set showmatch
set matchpairs=(:)
set mps+=[:]
set mps+={:}
set mps+=<:>
set matchtime=2

" "Flash" screen instead of "alert sound" in case of input error
set noerrorbells
set visualbell

" Search settings as intelligently as possible:
" * Ignore UPPER/lower case (not if \C used in search pattern)
" * If search pattern contains UPPER case --> UPPER/lower case respected
" * Search at once while search pattern keyed in (inc=incremental)
" * Mark hits (hl=highlight)
" * Search wraps around text bottom/top (wrapscan)
set ignorecase
set smartcase
set incsearch
set hlsearch
set wrapscan

" Set tabulator and indendation width to 4
set tabstop=4
set shiftwidth=4
set shiftround

" (Don't) expand tabulator to spaces (already existing ones not!)
" (convert existing tabulators to spaces by "1!Gexpand<CR>")
set noexpandtab
set expandtab

" (Don't) indent automatically (according to previous line)
" (<CTRL-T> indents by 1 level, <CTRL-D> dedents by 1 level)
set autoindent
set noautoindent

" Automatic line breaking 10 characters from right border (0=no line breaking)
" Max. width for inserted text (0=inactive, overwrites "wrapmargin")
set wrapmargin=10
set wrapmargin=0
set textwidth=75
set textwidth=0

" Switch syntax coloring on/off
syntax off
syntax enable

" Select syntax coloring scheme + some small adaptions
"colorscheme blue
"colorscheme darkblue
colorscheme default
"colorscheme delek
"colorscheme desert
"colorscheme elflord
"colorscheme evening
"colorscheme habamx
"colorscheme industry
"colorscheme koehler
"colorscheme lunaperche
"colorscheme morning
"colorscheme murphy
"colorscheme pablo
"colorscheme peachpuff
"colorscheme quiet
"colorscheme retrobox
"colorscheme ron
"colorscheme shine
"colorscheme slate
"colorscheme sorbet
"colorscheme torte
"colorscheme unokai
"colorscheme wildcharm
"colorscheme zaibatsu
"colorscheme zellner

" Statement elements dark blue instead of yellow (otherwise hard do read!)
" Variables black instead of yellow (otherwise hard do read!)
"hi statement  ctermfg=darkblue guifg=darkblue
"hi identifier ctermfg=black    guifg=black

" Mark search hits invers
"hi IncSearch   term=reverse cterm=reverse gui=reverse
"hi Search      term=reverse cterm=reverse gui=reverse
"hi Search      term=reverse ctermbg=8 gui=reverse
"hi Cursor      term=reverse cterm=reverse gui=reverse

" Color names:
"   White
"   Yellow   LightYellow   DarkYellow
"   Red      LightRed      DarkRed       
"   Green    LightGreen    DarkGreen     
"   Blue     LightBlue     DarkBlue      
"   Cyan     LightCyan     DarkCyan      
"   Magenta  LightMagenta  DarkMagenta   
"   Gray     LightGray     DarkGray
"   Grey     LightGrey     DarkGrey
"   Brown
"   Black

" Key "carriage return" switches search hits highlighting on/off (toggle)
" (invhls = invert highlight search)
"   <F1> = Key F1
"   <CR> = Key Carriage-Return
"   <BS> = Key BackSpace
" (/<BS> empties status line to avoid irritations!)
"nnoremap <F1> :set invhls<CR>/<BS>
nnoremap <CR> :set invhls<CR>/<BS>

" Jump to last cursor position when opening a file
" (only if "autocommands" are compiled in, pos. is valid and not in event handle)
if has("autocmd")
  autocmd BufReadPost *
    \ if line("'\"") > 0 && line("'\"") <= line("$") |
    \   exe "normal g`\"" |
    \ endif
endif