ad-editor 0.4.0

An adaptable text editor
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

#!/usr/bin/env bash
# A simple control program for running text based presentations within ad
# via an index file.
#
# To run the presentation within ad, execute 'Slide' in a directory with the
# structure shown below. From there the NextSlide and PrevSlide commands can
# be used to move between the slides.
#
# > Example directory structure:
# .
#   body
#   conclusion
#   index
#   intro
#
# > Example index content:
#   intro
#   body
#   conclusion

. "$HOME/.ad/lib/ad.sh"

requireAd

fname="$(bufRead "$AD_BUFID" filename)"
f="$(basename "$fname")"
d="$(dirname "$fname")"

[ ! -f "$d/index" ] && adError "not in a slideshow directory"
toLoad="$(head -n1 "$d/index")"

case "$1" in
  next)
    i="$(grep -n "^$f\$" "$d/index" | cut -d: -f1)"
    j="$(( "$i" + 1 ))"
    toLoad="$(nl "$d/index" | grep "\s$j\s" | cut -f2)"
    [ -z "$toLoad" ] && adError "This is the last slide"
    ;;

  prev)
    i="$(grep -n "^$f\$" "$d/index" | cut -d: -f1)"
    j="$(( "$i" - 1 ))"
    toLoad="$(nl "$d/index" | grep "\s$j\s" | cut -f2)"
    [ -z "$toLoad" ] && adError "This is first slide"
    ;;
esac

echo "$d/$toLoad" | bufWrite "$AD_BUFID" filename
adCtl "Get"
adEdit "0 i/[PrevSlide] [NextSlide]\n\n/"
curToBof "$AD_BUFID"
markClean "$AD_BUFID"