“语法大小写忽略”是否从 vim 7.3 更改为 vim 7.4？

Question

I suspect that the command syntax case ignore has changed between the versions 7.3 and 7.4

Here is my rather small test file ( test_1.vim ):

syntax clear
syntax on
syntax case ignore

syntax match   garbage  "[^ \t]"
syntax match   ident    "[a-z][a-z0-9]*"
syntax keyword keyw      foo bar baz

highlight def link garbage   Error
highlight def link ident     Normal
highlight def link keyw      Function

I want to apply this syntax file on this file ( test_1.no-no ):

foo abc ABC

When I open the file like so

gvim -u NONE test_1.no-no "+source test_1.vim"

the three words are highlighted as expected in vim 7.3.

Yet, in vim 7.4, the word ABC seems to be considered garbage as it is highlighed with the "Error colors".

Am I missing something or is this change in appearance expected?

Answer 1

I can reproduce this with the Vim 7.4.000 that ships with Ubuntu 13.10, but not with a self-compiled Vim 7.4.135. Looks like a bug in the new NFA-based regular expression engine that has been fixed in the meantime.

If you cannot upgrade to a newer Vim version, you can work around this by switching back to the old engine via

:set regexpengine=1

In the future, these kind of questions and bug reports are best addressed to the vim_dev mailing list .