zshrc: Don't use is-at-least anymore

While this can be a useful function, it really is a little overkill
for out purposes; especially, since we provide much simpler fallback
functions, when it is not available.

added is43() as well, which is currently not used, but probably should. :-)

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index 671e7c1..1e799c6 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -247,20 +247,25 @@ unset xof
 
 # {{{ check for version/system
 # check for versions (compatibility reasons)
-if autoload is-at-least && is-at-least 2>/dev/null ; then
-    is4()  { is-at-least 4 }
-    is41() { is-at-least 4.1 }
-    is42() { is-at-least 4.2 }
-else
-    is4(){
-        [[ $ZSH_VERSION == 4.* ]] && return 0
-        return 1
-    }
-    is42(){
-        [[ $ZSH_VERSION == 4.<2->* ]] && return 0
-        return 1
-    }
-fi
+is4(){
+    [[ $ZSH_VERSION == <4->* ]] && return 0
+    return 1
+}
+
+is41(){
+    [[ $ZSH_VERSION == 4.<1->* || $ZSH_VERSION == <5->* ]] && return 0
+    return 1
+}
+
+is42(){
+    [[ $ZSH_VERSION == 4.<2->* || $ZSH_VERSION == <5->* ]] && return 0
+    return 1
+}
+
+is43(){
+    [[ $ZSH_VERSION == 4.<3->* || $ZSH_VERSION == <5->* ]] && return 0
+    return 1
+}
 
 #f1# Checks whether or not you're running grml
 isgrml(){