cubernetes/bash-abbr
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#1: Allow history expansion on metacharacter insertion (currently disabled because it moves the point)

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tsi 2025-10-21 00:45:06 +02:00
parent bc3f414ab8
commit 91600446c6
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1 changed files with 14 additions and 11 deletions
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bash-abbr
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@ -4,12 +4,13 @@
# put into the bashrc drop-in directory ~/.bashrc.d/
# and then sourced from ~/.bashrc.
# WARNING: This plug-in creates a new readline binding: '\e\C-a'
# and overwrites the binding for '\C-m', ' ', '|', '&', ';', '(', ')', '<', '>'
# WARNING: This plug-in overwrites the readling bindings for ' ', '|', '&', ';', '(', ')', '<', '>'
# It also creates new bindings '\e\C-a<x>' where `<x>` is one of the characters above.
# Additionally, it overwrites the binding for '\C-m' and creates a corresponding binding '\e\C-an'.
# Therefore, it might interfere with other plug-ins or custom bindings.
# You may change the '\e\C-a' binding to whatever you want as it's only used
# as a hook inside another readline macro. The bindings '|', '&', ';', '(', ')', '<', '>'
# may also be dropped if you don't need them.
# You may change the '\e\C-a' binding-"prefix" to whatever you want as it's only used
# as a hook inside other readline macros. The bindings '|', '&', ';', '(', ')', '<', '>' (and their
# corresponding '\e\C-a' bindings) may also be dropped if you don't need them.
# Regexes for (heuristically) determining whether we're abbreviating the first word.
# Construction put into functions to prevent global namespace pollution
@ -132,12 +133,14 @@ _try_abbrev () {
# metacharacter
# A character that, when unquoted, separates words. One of the following:
# | & ; ( ) < > space tab newline
# Note: double quote should be escaped, if added to the list of metacharacters
for ch in ' ' '|' '&' ';' '(' ')' '<' '>'; do
bind -x '"'"$ch"'": _try_abbrev "'"$ch"'"' # Note: double quote should be escaped, if added to the list of metacharacters
bind -x '"\e\C-a'"$ch"'": _try_abbrev "'"$ch"'"'
bind '"'"$ch"'": "\e\C-a'"$ch"'"'
# bind '"'"$ch"'": "\e\C-a'"$ch"'\e^"' # Moves point weirdly
done
# Newline must be treated specially by creating a new binding which is called
# as a readline macro when pressing enter (C-m). After that is finished, the macro
# continues with a regular C-j, which accepts (=executes) the line as you would expect.
bind -x '"\e\C-a": _try_abbrev ""'
bind '"\C-m": "\e\C-a\e^\C-j"'
# Newline must be treated specially, because it doesn't self-insert
# and has the extra functionality of accepting a line.
bind -x '"\e\C-an": _try_abbrev ""'
bind '"\C-m": "\e\C-an\e^\C-j"'