n-panelize

 1# Copy this file into /usr/share/zsh/site-functions/
 2# and add 'autoload n-panelize` to .zshrc
 3#
 4# This function somewhat reminds the panelize feature from Midnight Commander
 5# It allows browsing output of arbitrary command. Example usage:
 6# v-panelize ls /usr/local/bin
 7#
 8# Uses n-list
 9
10emulate -L zsh
11
12setopt extendedglob
13zmodload zsh/curses
14
15local IFS="
16"
17
18unset NLIST_COLORING_PATTERN
19
20[ -f ~/.config/znt/n-list.conf ] && builtin source ~/.config/znt/n-list.conf
21[ -f ~/.config/znt/n-panelize.conf ] && builtin source ~/.config/znt/n-panelize.conf
22
23local list
24local selected
25
26NLIST_REMEMBER_STATE=0
27
28if [ -t 0 ]; then
29    # Check if there is proper input
30    if [ "$#" -lt 1 ]; then
31        echo "Usage: n-panelize {command} [option|argument] ... or command | n-panelize"
32        return 1
33    fi
34
35    # This loop makes script faster on some Zsh's (e.g. 5.0.8)
36    repeat 1; do
37        list=( `"$@"` )
38    done
39
40    # TODO: $? doesn't reach user
41    [ "$?" -eq 127 ] && return $?
42else
43    # Check if can reattach to terminal
44    if [[ ! -c /dev/tty && ! -t 2 ]]; then
45        echo "No terminal available (no /dev/tty)"
46        return 1
47    fi
48
49    # This loop makes script faster on some Zsh's (e.g. 5.0.8)
50    repeat 1; do
51        list=( "${(@f)"$(<&0)"}" )
52    done
53
54    if [[ ! -c /dev/tty ]]; then
55        exec <&2
56    else
57        exec </dev/tty
58    fi
59fi
60
61n-list "${list[@]}"
62
63if [ "$REPLY" -gt 0 ]; then
64    selected="$reply[REPLY]"
65    print -zr "# $selected"
66fi
67
68# vim: set filetype=zsh: