prezto/functions/completion.zsh

# Dumb terminals lack support.
if [[ "$TERM" == 'dumb' ]]; then
  return
fi

unsetopt menu_complete     # Do not autoselect the first completion entry.
unsetopt flow_control      # Disable start/stop characters in shell editor.
setopt auto_menu           # Show completion menu on a succesive tab press.
setopt complete_in_word    # Complete from both ends of a word.
setopt always_to_end       # Move cursor to the end of a completed word.

WORDCHARS=''

# FIXME: complist is crashing ZSH on menu completion.
# zmodload -i zsh/complist

## Case-insensitive (all), partial-word, and then substring completion.
if [[ "$CASE_SENSITIVE" == "true" ]]; then
  zstyle ':completion:*' matcher-list 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
  unset CASE_SENSITIVE
else
  zstyle ':completion:*' matcher-list 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=*' 'l:|=* r:|=*'
fi

zstyle ':completion:*' list-colors ''

# FIXME: It depends on complist which crashes ZSH on menu completion.
# Should this be in key-bindings.zsh?
# bindkey -M menuselect '^o' accept-and-infer-next-history

zstyle ':completion:*:*:*:*:*' menu select
zstyle ':completion:*:*:kill:*:processes' list-colors '=(#b) #([0-9]#) ([0-9a-z-]#)*=01;34=0=01'
zstyle ':completion:*:*:*:*:processes' command "ps -u `whoami` -o pid,user,comm -w -w"

# Disable named-directories autocompletion.
zstyle ':completion:*:cd:*' tag-order local-directories directory-stack path-directories
cdpath=(.)

# Use /etc/hosts and known_hosts for hostname completion.
[ -r ~/.ssh/known_hosts ] && _ssh_hosts=(${${${${(f)"$(<$HOME/.ssh/known_hosts)"}:#[\|]*}%%\ *}%%,*}) || _ssh_hosts=()
[ -r /etc/hosts ] && : ${(A)_etc_hosts:=${(s: :)${(ps:\t:)${${(f)~~"$(</etc/hosts)"}%%\#*}##[:blank:]#[^[:blank:]]#}}} || _etc_hosts=()
hosts=(
  "$_ssh_hosts[@]"
  "$_etc_hosts[@]"
  `hostname`
  localhost
)
zstyle ':completion:*:hosts' hosts $hosts

# Use caching to make completion for cammands such as dpkg and apt usable.
zstyle ':completion::complete:*' use-cache 1
zstyle ':completion::complete:*' cache-path ~/.oh-my-zsh/cache/

# Don't complete uninteresting users...
zstyle ':completion:*:*:*:users' ignored-patterns \
        adm amanda apache avahi beaglidx bin cacti canna clamav daemon \
        dbus distcache dovecot fax ftp games gdm gkrellmd gopher \
        hacluster haldaemon halt hsqldb ident junkbust ldap lp mail \
        mailman mailnull mldonkey mysql nagios \
        named netdump news nfsnobody nobody nscd ntp nut nx openvpn \
        operator pcap postfix postgres privoxy pulse pvm quagga radvd \
        rpc rpcuser rpm shutdown squid sshd sync uucp vcsa xfs

# ... unless we really want to.
zstyle '*' single-ignored show