From: Dmitri Vereshchagin <dmitri.vereshchagin@gmail.com>
Date: Sat, 22 Jun 2019 12:09:59 +0000 (+0300)
Subject: zshrc: Reset $REPLY parameter before calling prompt token functions
X-Git-Tag: v0.16.1~1^2
X-Git-Url: https://git.grml.org/?a=commitdiff_plain;ds=sidebyside;h=03ec73ccb21f701a03ef49167e354386c07ea05a;p=grml-etc-core.git

zshrc: Reset $REPLY parameter before calling prompt token functions

It may be tempting to write a prompt token function like this

    if (( ${+commands[kerl]} )) REPLY=$(kerl prompt '<%s> ')

But if the command does not exist user may be end up with duplicated
tokens in her prompt.  Resetting $REPLY parameter before calling
user-defined functions prevents this problem.
---

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 21db9e7..0a61570 100644
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -2269,6 +2269,7 @@ grml_theme_add_token: Token `%s'\'' exists! Giving up!\n\n' $name
         return 2
     fi
     if (( init )); then
+        REPLY=''
         $token $name
         token=$REPLY
     fi
@@ -2314,6 +2315,7 @@ function grml_prompt_addto () {
         zstyle -s ":prompt:${grmltheme}:${lr}:items:$it" token new \
             || new=${grml_prompt_token_default[$it]}
         if (( ${+grml_prompt_token_function[$it]} )); then
+            REPLY=''
             ${grml_prompt_token_function[$it]} $it
         else
             case $it in