mirror of
https://github.com/notwa/rc
synced 2024-11-12 15:49:03 -08:00
21 lines
566 B
Bash
21 lines
566 B
Bash
#!/usr/bin/env sh
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# compat: +ash +bash +dash +zsh
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v_domap() {
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argc $# -eq 1 "$0" || return
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# TODO: sanity-check on characters of the variable name.
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local _k_="$1" _v_= _new_= _next_= _i_= _o_=
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eval "_v_=\"\$$_k_\""
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while [ -n "$_v_" ]; do
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_next_="${_v_#?}"
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_i_="${_v_%"$_next_"}"; _v_="$_next_"
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map
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_new_="$_new_$_o_"
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#printf 'new: %s\n' "$_new_"
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done
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eval "$_k_=\"\$_new_\""
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}
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[ -n "${preload+-}" ] || . ~/sh/preload || exit 2
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eval ${preload:-preload} argc
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[ -n "${preload+-}" ] || v_domap "$@"
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