In this post I'll show how to create a simple Vim syntax script to highlight source of common error and access logs.
First make sure you have the following folders and files:~/.vimrc - the main config ~/.vim/ftdetect - directory with filetype scripts ~/.vim/syntax - directory with specific syntax scriptsIf something missing, you can copy it from $VIMRUNTIME directory. Find block starting with
if has("autocmd")
and add the following line there:
au BufRead,BufNewFile *.log set filetype=error_log
Create filetype script in ~/.vim/ftdetect/error_log.vim:
if did_filetype() " filetype already set.. finish " ..don't do these checks endif au BufRead,BufNewFile *.error.log set filetype=error_log au BufRead,BufNewFile *.access.log set filetype=error_logFinally you need syntax script itself, ~/.vim/syntax/error_log.vim:
" Vim syntax file
" Language: error_log
" Maintainer: Ruslan Osmanov <rrosmanov at gmail dot com>
" Last Change: Thu Sep 1 15:30:52 MSD 2011
" Version: 1.0
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
" Always ignore case
syn case ignore
" General keywords which don't fall into other categories
syn keyword error_logKeyword error warning notice
" Special values
syn keyword error_logSpecial referer client
" Strings (single- and double-quote)
syn region error_logString start=+"+ skip=+\\\\\|\\"+ end=+"+
syn region error_logString start=+'+ skip=+\\\\\|\\'+ end=+'+
" Numbers and hexidecimal values
syn match error_logNumber "-\=\<[0-9]*\>"
syn match error_logNumber "-\=\<[0-9]*\.[0-9]*\>"
syn match error_logNumber "-\=\<[0-9][0-9]*e[+-]\=[0-9]*\>"
syn match error_logNumber "-\=\<[0-9]*\.[0-9]*e[+-]\=[0-9]*\>"
syn match error_logNumber "\<0x[abcdefABCDEF0-9]*\>"
" IP addresses
syn match error_logIP "-\=\<[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\>"
syn region error_logOperator start="referrer\:" end="" contains=ALL
" URI
syn match error_logURI "http\:\/\/[^ ]*"
" Date
syn match error_logDate "\[[0-9]*\/[a-zA-Z]\{3\}\/\d\{4\}:\d\{2\}:\d\{2\}:\d\{2\} +\d\{4\}\]"
syn match error_logDate "\[[a-zA-Z]\{3\} [a-zA-Z]\{3\} \d\{2\} \d\{2\}:\d\{2\}:\d\{2\} \d\{4\}\]"
" Domain
syn match error_logDomain "\(www\.\)\?[a-z0-9\-\_]*\.\(ru\|com\|by\|uz\|ua\|kz\|su\|net\|org\)"
" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_error_log_syn_inits")
if version < 508
let did_error_log_syn_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
HiLink error_logKeyword Statement
HiLink error_logIP Type
HiLink error_logSpecial Special
HiLink error_logString String
HiLink error_logNumber Number
HiLink error_logDate Comment
HiLink error_logURI Underlined
HiLink error_logDomain Underlined
delcommand HiLink
endif
let b:current_syntax = "error_log"
" vim:sw=4:
