regex anchors and character classes in ZSH_HIGHLIGHT_REGEXP keys not matching

[olets]

I'm not having success with ZSH_HIGHLIGHT_REGEXP keys that include \s, \b, \n, or \w. I haven't tried other anchors or character classes. I have tried escaping the \ as \\ with no success.

For example following https://github.com/zsh-users/zsh-syntax-highlighting/blob/master/docs/highlighters/regexp.md:

typeset -A ZSH_HIGHLIGHT_REGEXP
ZSH_HIGHLIGHT_HIGHLIGHTERS=(main regexp)
ZSH_HIGHLIGHT_REGEXP+=('\bmytest\b' fg=blue)

mytest never highlights.

My goal is two matches: words that are the single word in a no-trailing-whitespace buffer

ZSH_HIGHLIGHT_REGEXP+=('^[\s\n]*(one|two)$' fg=blue)

and words that are the last in a no-trailing-whitespace buffer

ZSH_HIGHLIGHT_REGEXP+=('\b(three|four)$' fg=red)

[phy1729]

You may be on a platform that uses \<mytest\> or [[:<:]]mytest[[:>:]] instead of \bmytest\b. For details see #747

[olets]

That's it, thanks! I'm on macOS.

So

ZSH_HIGHLIGHT_REGEXP+=('^[[:blank:]]*(one|two)$' fg=blue)
ZSH_HIGHLIGHT_REGEXP+=('[[:<:]](three|four)$' fg=red)

Do you happen to know what the GNU libc equivalent of \s\n / [:blank:] is, or have a reference link? I'm searching and not finding anything good.

[danielshahaf]

One of these? — https://manpages.debian.org/regex/7 https://manpages.debian.org/egrep

[olets]

Thanks 👍