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Simplify escaping of pattern and fix match_prev_cmd strategy

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Maybe this is also a fix for #247, #248 and #258. Supersedes #267.

Testcase:
Using match_prev_cmd strategy and with these lines in history:
echo '1^'
echo '2^'
echo '1^'

type:
echo       (unexpected suggestion echo '1^' instead of echo '2^')
echo '1^1  (wrong suggestion echo '1^1echo '1^')
echo '1^#  (error "bad math expression")
This commit is contained in:
Stefan Siegel 2017-09-10 04:35:19 +02:00
parent 33b91a9dea
commit 7f8ff2867c
5 changed files with 10 additions and 53 deletions
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1
Makefile
View file

@ -3,7 +3,6 @@ SRC_DIR := ./src
SRC_FILES := \
$(SRC_DIR)/setup.zsh \
$(SRC_DIR)/config.zsh \
$(SRC_DIR)/util.zsh \
$(SRC_DIR)/features.zsh \
$(SRC_DIR)/bind.zsh \
$(SRC_DIR)/highlight.zsh \

14
src/strategies/default.zsh
View file

@ -7,19 +7,9 @@
#
_zsh_autosuggest_strategy_default() {
# Reset options to defaults and enable LOCAL_OPTIONS
emulate -L zsh
# Enable globbing flags so that we can use (#m)
setopt EXTENDED_GLOB
# Escape backslashes and all of the glob operators so we can use
# this string as a pattern to search the $history associative array.
# - (#m) globbing flag enables setting references for match data
local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
local prefix="$1"
# Get the history items that match
# - (r) subscript flag makes the pattern match on values
suggestion="${history[(r)$prefix*]}"
suggestion="${history[(r)${(b)prefix}*]}"
}

6
src/strategies/match_prev_cmd.zsh
View file

@ -21,18 +21,18 @@
# `HIST_EXPIRE_DUPS_FIRST`.
_zsh_autosuggest_strategy_match_prev_cmd() {
local prefix="${1//(#m)[\\()\[\]|*?~]/\\$MATCH}"
local prefix="$1"
# Get all history event numbers that correspond to history
# entries that match pattern $prefix*
local history_match_keys
history_match_keys=(${(k)history[(R)$prefix*]})
history_match_keys=(${(k)history[(R)${(b)prefix}*]})
# By default we use the first history number (most recent history entry)
local histkey="${history_match_keys[1]}"
# Get the previously executed command
local prev_cmd="$(_zsh_autosuggest_escape_command "${history[$((HISTCMD-1))]}")"
local prev_cmd="${history[$((HISTCMD-1))]}"
# Iterate up to the first 200 history event numbers that match $prefix
for key in "${(@)history_match_keys[1,200]}"; do

11
src/util.zsh
View file

@ -1,11 +0,0 @@
#--------------------------------------------------------------------#
# Utility Functions #
#--------------------------------------------------------------------#
_zsh_autosuggest_escape_command() {
setopt localoptions EXTENDED_GLOB
# Escape special chars in the string (requires EXTENDED_GLOB)
echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
}

31
zsh-autosuggestions.zsh
View file

@ -101,17 +101,6 @@ ZSH_AUTOSUGGEST_BUFFER_MAX_SIZE=
# Pty name for calculating autosuggestions asynchronously
ZSH_AUTOSUGGEST_ASYNC_PTY_NAME=zsh_autosuggest_pty
#--------------------------------------------------------------------#
# Utility Functions #
#--------------------------------------------------------------------#
_zsh_autosuggest_escape_command() {
setopt localoptions EXTENDED_GLOB
# Escape special chars in the string (requires EXTENDED_GLOB)
echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
}
#--------------------------------------------------------------------#
# Feature Detection #
#--------------------------------------------------------------------#
@ -489,21 +478,11 @@ zle -N autosuggest-toggle _zsh_autosuggest_widget_toggle
#
_zsh_autosuggest_strategy_default() {
# Reset options to defaults and enable LOCAL_OPTIONS
emulate -L zsh
# Enable globbing flags so that we can use (#m)
setopt EXTENDED_GLOB
# Escape backslashes and all of the glob operators so we can use
# this string as a pattern to search the $history associative array.
# - (#m) globbing flag enables setting references for match data
local prefix="${1//(#m)[\\*?[\]<>()|^~#]/\\$MATCH}"
local prefix="$1"
# Get the history items that match
# - (r) subscript flag makes the pattern match on values
suggestion="${history[(r)$prefix*]}"
suggestion="${history[(r)${(b)prefix}*]}"
}
#--------------------------------------------------------------------#
@ -528,18 +507,18 @@ _zsh_autosuggest_strategy_default() {
# `HIST_EXPIRE_DUPS_FIRST`.
_zsh_autosuggest_strategy_match_prev_cmd() {
local prefix="${1//(#m)[\\()\[\]|*?~]/\\$MATCH}"
local prefix="$1"
# Get all history event numbers that correspond to history
# entries that match pattern $prefix*
local history_match_keys
history_match_keys=(${(k)history[(R)$prefix*]})
history_match_keys=(${(k)history[(R)${(b)prefix}*]})
# By default we use the first history number (most recent history entry)
local histkey="${history_match_keys[1]}"
# Get the previously executed command
local prev_cmd="$(_zsh_autosuggest_escape_command "${history[$((HISTCMD-1))]}")"
local prev_cmd="${history[$((HISTCMD-1))]}"
# Iterate up to the first 200 history event numbers that match $prefix
for key in "${(@)history_match_keys[1,200]}"; do