Minimal CSV highlighting

.vimrc

func! s:init_groups_from_colors()
    let colors = [ 'red', 'green', 'blue', 'magenta', 'NONE', 'darkred', 'darkblue', 'darkgreen', 'darkmagenta', 'darkcyan' ]
    for ci in range(len(colors))
        let cmd = 'highlight column%d ctermfg=%s guifg=%s'
        exe printf(cmd, ci, colors[ci], colors[ci])
        let cmd = 'highlight escaped_column%d ctermfg=%s guifg=%s'
        exe printf(cmd, ci, colors[ci], colors[ci])
    endfor
endfunc

call s:init_groups_from_colors()

csv.vim

syntax match column9 /.\{-}\(,\|$\)/ nextgroup=escaped_column0,column0
syntax match escaped_column9 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column0,column0
syntax match column8 /.\{-}\(,\|$\)/ nextgroup=escaped_column9,column9
syntax match escaped_column8 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column9,column9
syntax match column7 /.\{-}\(,\|$\)/ nextgroup=escaped_column8,column8
syntax match escaped_column7 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column8,column8
syntax match column6 /.\{-}\(,\|$\)/ nextgroup=escaped_column7,column7
syntax match escaped_column6 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column7,column7
syntax match column5 /.\{-}\(,\|$\)/ nextgroup=escaped_column6,column6
syntax match escaped_column5 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column6,column6
syntax match column4 /.\{-}\(,\|$\)/ nextgroup=escaped_column5,column5
syntax match escaped_column4 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column5,column5
syntax match column3 /.\{-}\(,\|$\)/ nextgroup=escaped_column4,column4
syntax match escaped_column3 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column4,column4
syntax match column2 /.\{-}\(,\|$\)/ nextgroup=escaped_column3,column3
syntax match escaped_column2 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column3,column3
syntax match column1 /.\{-}\(,\|$\)/ nextgroup=escaped_column2,column2
syntax match escaped_column1 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column2,column2
syntax match column0 /.\{-}\(,\|$\)/ nextgroup=escaped_column1,column1
syntax match escaped_column0 / *"\([^"]*""\)*[^"]*" *\(,\|$\)/ nextgroup=escaped_column1,column1

LICENSE

MIT License

Copyright (c) 2017 Dmitry Ignatovich

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.