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versionstamp: Handle NO_FUNCTION_ARGZERO.

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Sourcing zsh-syntax-highlighting.zsh without FUNCTION_ARGZERO doesn't work (for
reasons unrelated to this branch), but now errors out gracefully.  The failure mode
before this branch was:

    zsh-syntax-highlighting: highlighters directory '/usr/local/bin/highlighters' not found.

where /usr/local/bin is dirname() of the zsh binary.
This commit is contained in:
Daniel Shahaf 2015-10-01 16:26:43 +00:00
parent 43386376d8
commit 9c56c624e9
1 changed files with 10 additions and 1 deletions
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11
zsh-syntax-highlighting.zsh
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@ -29,7 +29,16 @@
# -------------------------------------------------------------------------------------------------
ZSH_HIGHLIGHT_VERSION=$(<"$0:h"/.version)
if [[ -o function_argzero ]]; then
# $0 is reliable
ZSH_HIGHLIGHT_VERSION=$(<"$0:h"/.version)
else
# $0 is unreliable, so the call to _zsh_highlight_load_highlighters will fail.
# TODO: If 'zmodload zsh/parameter' is available, ${funcsourcetrace[1]%:*} might serve as a substitute?
# TODO: also check POSIX_ARGZERO, but not it's not available in older zsh
echo "zsh-syntax-highlighting: error: not compatible with FUNCTION_ARGZERO" >&2
return 1
fi
# -------------------------------------------------------------------------------------------------
# Core highlighting update system