| " Vim syntax file |
| " Language: J |
| " Maintainer: David Bürgin <676c7473@gmail.com> |
| " Last Change: 2013-09-21 |
| |
| if exists("b:current_syntax") |
| finish |
| endif |
| |
| syntax case match |
| syntax sync minlines=50 |
| |
| syn match jControl /\<\%(assert\|break\|case\|catch[dt]\=\|continue\|do\|else\%(if\)\=\|end\|fcase\|for\|if\|return\|select\|throw\|try\|whil\%(e\|st\)\)\./ |
| syn match jControl /\<\%(for\|goto\|label\)_\a\k*\./ |
| |
| syn region jString oneline start=/'/ skip=/''/ end=/'/ |
| |
| " Patterns for numbers in general, rational numbers, numbers with explicit |
| " base, infinities, and numbers with extended precision. |
| " |
| " Matching J numbers is difficult. The regular expression used for the general |
| " case roughly embodies this grammar sketch: |
| " |
| " EXP := /_?\d+(\.\d*)?([eE]_?\d+)?/ |
| " COMP := EXP | EXP (j|a[dr]) EXP |
| " PIEU := COMP | COMP [px] COMP |
| " |
| " For the rest, a compromise between correctness and practicality was made. |
| " See http://www.jsoftware.com/help/dictionary/dcons.htm for reference. |
| syn match jNumber /\<_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(\%(j\|a[dr]\)_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\)\=\%([px]_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(\%(j\|a[dr]\)_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\)\=\)\=/ |
| syn match jNumber /\<_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=r_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=/ |
| syn match jNumber /\<_\=\d\+\%([eE]\d\+\)\=b_\=[0-9a-z]\+/ |
| syn match jNumber /\<__\=\>/ |
| syn match jNumber /\<_\=\d\+x\>/ |
| |
| syn match jComment /NB\..*$/ |
| |
| hi def link jControl Statement |
| hi def link jString String |
| hi def link jNumber Number |
| hi def link jComment Comment |
| |
| let b:current_syntax = "j" |
