fix _get_icon on ZSH 5.1

ZSH 5.1 has crippled ${(P)...}. For example, the following code prints "broken":

    unset foo
    echo ${${(P)foo}+broken}

In ZSH 5.2 and later this code print an empty line.

Fixes #91.
pull/93/head
romkatv 5 years ago
parent 5f40c44940
commit 088502c30c

@ -77,8 +77,9 @@ _p9k_cache_get() {
# Sets _P9K_RETVAL to the icon whose name is supplied via $1.
_p9k_get_icon() {
local var_name=POWERLEVEL9K_$1
_P9K_RETVAL=${(g::)${${(P)var_name}-$icons[$1]}}
local x=POWERLEVEL9K_$1
(( $+parameters[$x] )) && x=${(P)x} || x=$icons[$1]
_P9K_RETVAL=${(g::)x}
[[ $_P9K_RETVAL != $'\b'? ]] || _P9K_RETVAL="%{$_P9K_RETVAL%}" # penance for past sins
}

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