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Add feature detection

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Checks whether `zpty` gives a file descriptor, which was not the case in
older versions of zsh.

Based on a4b2f81c96/async.zsh (L395-L401)
This commit is contained in:
Eric Freese 2017-01-26 16:35:33 -07:00
parent 3f57198d07
commit 78ba07179a
4 changed files with 41 additions and 0 deletions
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1
Makefile
View file

@ -5,6 +5,7 @@ SRC_FILES := \
$(SRC_DIR)/setup.zsh \
$(SRC_DIR)/config.zsh \
$(SRC_DIR)/util.zsh \
$(SRC_DIR)/features.zsh \
$(SRC_DIR)/deprecated.zsh \
$(SRC_DIR)/bind.zsh \
$(SRC_DIR)/highlight.zsh \

19
src/features.zsh Normal file
View file

@ -0,0 +1,19 @@
#--------------------------------------------------------------------#
# Feature Detection #
#--------------------------------------------------------------------#
_zsh_autosuggest_feature_detect() {
typeset -g _ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD
typeset -h REPLY
zpty $ZSH_AUTOSUGGEST_PTY_NAME :
if (( REPLY )); then
_ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD=1
else
_ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD=0
fi
zpty -d $ZSH_AUTOSUGGEST_PTY_NAME
}

1
src/start.zsh
View file

@ -7,6 +7,7 @@
_zsh_autosuggest_start() {
add-zsh-hook -d precmd _zsh_autosuggest_start
_zsh_autosuggest_feature_detect
_zsh_autosuggest_check_deprecated_config
_zsh_autosuggest_bind_widgets
}

20
zsh-autosuggestions.zsh
View file

@ -111,6 +111,25 @@ _zsh_autosuggest_escape_command() {
echo -E "${1//(#m)[\"\'\\()\[\]|*?~]/\\$MATCH}"
}
#--------------------------------------------------------------------#
# Feature Detection #
#--------------------------------------------------------------------#
_zsh_autosuggest_feature_detect() {
typeset -g _ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD
typeset -h REPLY
zpty $ZSH_AUTOSUGGEST_PTY_NAME :
if (( REPLY )); then
_ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD=1
else
_ZSH_AUTOSUGGEST_ZPTY_RETURNS_FD=0
fi
zpty -d $ZSH_AUTOSUGGEST_PTY_NAME
}
#--------------------------------------------------------------------#
# Handle Deprecated Variables/Widgets #
#--------------------------------------------------------------------#
@ -570,6 +589,7 @@ add-zsh-hook precmd _zsh_autosuggest_async_recreate_pty
_zsh_autosuggest_start() {
add-zsh-hook -d precmd _zsh_autosuggest_start
_zsh_autosuggest_feature_detect
_zsh_autosuggest_check_deprecated_config
_zsh_autosuggest_bind_widgets
}