Use jobstates associative array instead of jobs builtin

via command substitution, which was starting a subshell.

Author: ericbn

eriner.zsh-theme

@@ -45,7 +45,7 @@ _prompt_eriner_status() {
   local segment=
   if (( RETVAL )) segment+=' %F{red}✘'
   if (( EUID == 0 )) segment+=' %F{yellow}⚡'
-  if (( $(jobs -l | wc -l) )) segment+=' %F{cyan}⚙'
+  if (( ${#jobstates} )) segment+=' %F{cyan}⚙'
   if (( RANGER_LEVEL )) segment+=' %F{cyan}r'
   if [[ -n ${VIRTUAL_ENV} ]] segment+=" %F{cyan}${VIRTUAL_ENV:t}"
   if [[ -n ${SSH_TTY} ]] segment+=" %F{%(!.yellow.default)}%n@%m"