versionstamp: Handle NO_FUNCTION_ARGZERO.
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.
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@ -29,7 +29,16 @@
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# -------------------------------------------------------------------------------------------------
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# -------------------------------------------------------------------------------------------------
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if [[ -o function_argzero ]]; then
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# $0 is reliable
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ZSH_HIGHLIGHT_VERSION=$(<"$0:h"/.version)
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ZSH_HIGHLIGHT_VERSION=$(<"$0:h"/.version)
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else
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# $0 is unreliable, so the call to _zsh_highlight_load_highlighters will fail.
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# TODO: If 'zmodload zsh/parameter' is available, ${funcsourcetrace[1]%:*} might serve as a substitute?
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# TODO: also check POSIX_ARGZERO, but not it's not available in older zsh
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echo "zsh-syntax-highlighting: error: not compatible with FUNCTION_ARGZERO" >&2
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return 1
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fi
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# -------------------------------------------------------------------------------------------------
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# -------------------------------------------------------------------------------------------------
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# Core highlighting update system
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# Core highlighting update system
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