2020-12-29 08:38:07 -08:00
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#!/usr/bin/env sh
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2024-07-22 05:28:58 -07:00
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# compat: +ash +bash +dash +zsh YES_BB_AWK
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2021-07-29 00:37:35 -07:00
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2021-07-30 19:41:16 -07:00
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similar() { ### @-
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2021-08-01 09:27:25 -07:00
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### highlight adjacent lines up to the first inequivalent character.
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2021-07-29 05:44:12 -07:00
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[ $# -eq 0 ] || { printf "%s\n" "$0: does not take arguments" >&2; return 1; }
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2021-07-29 00:37:35 -07:00
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awk '
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{
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i=0
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2021-10-01 12:00:23 -07:00
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for(c=1;c<length;c++)
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if(substr($0,c,1)==substr(L,c,1)) i++
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2021-07-29 00:37:35 -07:00
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else break
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#print substr($0,1,i) "\033[7m" substr($0,i+1) "\033[0m"
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print "\033[31m" substr($0,1,i) "\033[0m" substr($0,i+1)
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L=$0
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}'
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}
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2021-08-02 13:48:46 -07:00
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[ -n "${preload+-}" ] || similar "$@"
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