Update runtime files and translations.
diff --git a/runtime/syntax/j.vim b/runtime/syntax/j.vim
index bde9545..0cdd59b 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 @@
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 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=/'/