vim: add bpf syntax highlighting file

This is a revised, simple syntax highlighting file for the bpf language.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/bpf.vim b/bpf.vim
new file mode 100644
index 0000000..bb6322a
--- /dev/null
+++ b/bpf.vim
@@ -0,0 +1,45 @@
+" Vim syntax file
+" Language: Berkeley Packet Filter
+" Maintainer: Daniel Borkmann
+" Latest Revision: 08/16/2011
+"
+" In order to make syntax highlighting for BPFs work in vim, copy this file
+" to ~/.vim/syntax/ and activate it in vim by entering:
+"
+"    :set syntax=bpf
+"
+" If you want to automatically load the BPF syntax highlighting for *.bpf 
+" files create the ~/.vim/filetype.vim with the following content:
+"
+"    my filetype file
+"    if exists("did_load_filetypes")
+"      finish
+"    endif
+"
+"    augroup filetypedetect
+"      au! BufRead,BufNewFile *.bpf  setfiletype bpf
+"    augroup END
+"
+
+if exists("b:current_syntax")
+  finish
+endif
+
+syn keyword bpfTodo contained TODO FIXME XXX NOTE
+syn keyword bpfKeywords ldb ldh ld ldi ldx ldxi ldxb st stx jmp ja jeq jneq jne skipwhite
+syn keyword bpfKeywords jlt jle jgt jge jset add sub mul div mod neg and or xor skipwhite
+syn keyword bpfKeywords lsh rsh ret tax txa skipwhite
+
+syn match bpfLabel /[a-zA-Z0-9_]\+/
+syn match bpfSpChar /[:,#\[\]\(\)+*&]\?/ contains=bpfNumber,bpfLabel
+syn match bpfNumber /\(0[xX]\x\+\|\d\+\)/
+syn match bpfComment ";.*$" contains=bpfTodo
+
+hi def link bpfTodo Todo
+hi def link bpfComment Comment
+hi def link bpfKeywords Keyword
+hi def link bpfLabel Type
+hi def link bpfNumber Number
+hi def link bpfSpChar Special
+
+let b:current_syntax = "bpf"