mirror of
https://github.com/notwa/rc
synced 2024-09-19 09:34:06 -07:00
21 lines
638 B
Bash
Executable file
21 lines
638 B
Bash
Executable file
#!/usr/bin/env sh
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# compat: +ash +bash +dash +zsh
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# does not work with busybox sed (yet?)
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scramble() { ### @-
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### scrambles text in a predictable way using regex.
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###
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### sacbremls ttex in a pdrceailtbe way unsig reegx.
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###
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### **TODO:** consider renaming because scramble(1) already exists.
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[ $# -eq 0 ] || { printf "%s\n" "$0: does not take arguments" >&2; return 1; }
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local eggs='s/@\(\w\)\(\w\)\(\w\)/@\3\1@\2/g'
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sed \
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-e 's/\b\w/&@/g' \
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-e "$eggs" -e "$eggs" -e "$eggs" -e "$eggs" \
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-e "$eggs" -e "$eggs" -e "$eggs" -e "$eggs" \
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-e 's/@//g'
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}
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[ -n "${preload+-}" ] || scramble "$@"
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