Re: next-word vs. next-word-segment?

[Peter Stephenson <pws@xxxxxxx>]

Jay Levitt wrote:
> TextMate on the Mac has a handy feature: you can jump to the next word
> as always, with option-right-arrow, but you can also jump to the next
> word segment (CamelCase, under_score, hyphen-ated) with
> control-right-arrow. This solves the age old "which word boundaries do I
> care about more?" problem.
>
> Is there a way to do something like this easily in zsh?  I'm on 4.3.6
> (but could upgrade to 4.3.10 if needed).

I can't remember if you need to upgrade to get this (I think you
probably do); check the zshcontrib manual to see if it mentions the
subword-range style, if not your zsh is too old.

The easiest way to get this behaviour is to intercept the normal
backward- and forward-word commands:

  autoload -U select-word-style
  select-word-style normal
  WORDCHARS='*?.[]~=/&;!#$%^(){}<>'
  select-word-style Normal

The capital "N" is important.  You can tweak WORDCHARS if you like, I've
simply removed "-" and "_".

You can also do this entirely with styles for particular functions, so
that it doesn't affect the default behaviour, but that's a little more
involved.  The following worked for me:


# Acquire the functions provided with the shell
autoload -U forward-word-match backward-word-match
# Turn them into widgets with sensible names
zle -N forward-subword forward-word-match
zle -N backward-subword backward-word-match

# Make them have standard word behaviour, except with subwords active
zstyle ':zle:*-subword*' word-style normal-subword
# Set the characters which can be in words (exclude "-" and "_")
zstyle ':zle:*-subword*' word-chars '*?.[]~=/&;!#$%^(){}<>'

# Bind the keys.
# These are on my X server, MacOS is almost certainly different
# control forward-arrow
bindkey '\e[1;5C' forward-subword
# control back-arrow
bindkey '\e[1;5D' backward-subword


--
Peter Stephenson <pws@xxxxxxx>            Software Engineer
Tel: +44 (0)1223 692070                   Cambridge Silicon Radio Limited
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