diff options
Diffstat (limited to 'runtime/syntax/j.vim')
| -rw-r--r-- | runtime/syntax/j.vim | 42 |
1 files changed, 24 insertions, 18 deletions
diff --git a/runtime/syntax/j.vim b/runtime/syntax/j.vim index bde954506e..0cdd59b887 100644 --- a/runtime/syntax/j.vim +++ b/runtime/syntax/j.vim @@ -2,7 +2,7 @@ " Language: J " Maintainer: David Bürgin <676c7473@gmail.com> " URL: https://github.com/glts/vim-j -" Last Change: 2014-05-25 +" Last Change: 2014-10-05 if exists('b:current_syntax') finish @@ -12,7 +12,7 @@ let s:save_cpo = &cpo set cpo&vim syntax case match -syntax sync minlines=50 +syntax sync minlines=100 syntax cluster jStdlibItems contains=jStdlibNoun,jStdlibAdverb,jStdlibConjunction,jStdlibVerb syntax cluster jPrimitiveItems contains=jNoun,jAdverb,jConjunction,jVerb,jCopula @@ -30,26 +30,32 @@ syntax keyword jStdlibVerb AND Endian IFDEF Note OR XOR alpha17 alpha27 anddf an syntax match jStdlibNoun /\<\%(adverb\|conjunction\|dyad\|monad\|noun\|verb\)\>/ syntax match jStdlibVerb /\<\%(assert\|break\|do\)\>\.\@!/ -" Numbers. Matching J numbers is difficult. The regular expression used for -" the general case roughly embodies this grammar sketch: +" Numbers. Matching J numbers is difficult. In fact, the job cannot be done +" with regular expressions alone. Below is a sketch of the pattern used. It +" accepts most well-formed numbers and rejects most of the ill-formed ones. +" See http://www.jsoftware.com/help/dictionary/dcons.htm for reference. " -" BASE := /_?\d+(\.\d*)?([eE]_?\d+)?/ -" RATIONAL := BASE | BASE r BASE -" COMPLEX := BASE | BASE (j|a[dr]) BASE -" JNUMBER := RATIONAL | RATIONAL [px] RATIONAL | COMPLEX | COMPLEX [px] COMPLEX +" "double1" and "double2" patterns: +" (_?\d+(\.\d*)?|_\.\d+)([eE]_?\d+)? +" (_?\d+(\.\d*)?|_\.\d+|\.\d+)([eE]_?\d+)? " -" The grammar is implemented as shown in this pseudo-regexp: +" "rational1" and "rational2" patterns: +" \k<double1>(r\k<double2>)?|__? +" \k<double2>(r\k<double2>)?|__? " -" base rational complex remainder -" /\< B ( [r]B ([px]B([r]B)?)? | (j|a[dr])B ([px]B((j|a[dr])B)?)? | [px]B ((j|a[dr]|r)B)? )?/ +" "complex1" and "complex2" patterns: +" \k<rational1>((j|a[dr])\k<rational2>)? +" \k<rational2>((j|a[dr])\k<rational2>)? " -" All in all, a compromise between correctness and practicality had to be -" made. See http://www.jsoftware.com/help/dictionary/dcons.htm for reference. -syntax match jNumber /\<_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(\%(r_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%([px]_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(r_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\)\=\)\=\)\|\%(\%(j\|a[dr]\)_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%([px]_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(\%(j\|a[dr]\)_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\)\=\)\=\)\|\%([px]_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\%(\%(j\|a[dr]\|r\)_\=\d\+\%(\.\d*\)\=\%([eE]_\=\d\+\)\=\)\=\)\)\=/ -syntax match jNumber /\<_\=\d\+\%([eE]\d\+\)\=b_\=[0-9a-z]\+\%(\.[0-9a-z]\+\)\=/ -syntax match jNumber /\<__\=\>/ -syntax match jNumber /\<_\./ -syntax match jNumber /\<_\=\d\+x\>/ +" "basevalue" pattern: +" _?[0-9a-z]+(\.[0-9a-z]*)?|_?\.[0-9a-z]+ +" +" all numbers: +" \b\k<complex1>([px]\k<complex2>)?(b\k<basevalue>)?(?![0-9A-Za-z_.]) +syntax match jNumber /\<_\.[0-9A-Za-z_.]\@!/ +syntax match jNumber /\<_\=\d\+x[0-9A-Za-z_.]\@!/ +syntax match jNumber /\<\%(__\=r_\=\d\+\|_\=\d\+r__\=\)[0-9A-Za-z_.]\@!/ +syntax match jNumber /\<\%(\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\)\%([eE]_\=\d\+\)\=\%(r\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\)\=\|__\=\)\%(\%(j\|a[dr]\)\%(\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\%(r\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\)\=\|__\=\)\)\=\%([px]\%(\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\%(r\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\)\=\|__\=\)\%(\%(j\|a[dr]\)\%(\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\%(r\%(_\=\d\+\%(\.\d*\)\=\|_\.\d\+\|\.\d\+\)\%([eE]_\=\d\+\)\=\)\=\|__\=\)\)\=\)\=\%(b\%(_\=[0-9a-z]\+\%(\.[0-9a-z]*\)\=\|_\=\.[0-9a-z]\+\)\)\=[0-9A-Za-z_.]\@!/ syntax region jString oneline start=/'/ skip=/''/ end=/'/ |