/usr/share/plait/interactivestream.awk is in plait 1.6.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2005, 2006 Stephen Jungels
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# See COPYING for the full text of the license.
BEGIN {
search = "";
savesearch = "";
}
state==0 {
printf \
("y: yes\nn: no\nY: yes to all\nN: no to all\n/: search\n") \
> "/dev/tty";
state = 1;
}
state==1 {
long = $0;
sub("# ", "", long);
brief = long;
brief = substr(brief, 1, 72);
action = "";
response = "";
if (all!="")
{
action = all;
}
if (action=="" && search!="")
{
if (tolower(long) ~ tolower(search))
{
search = "";
}
else
{
action = "n";
}
}
if (action=="y")
{
getline;
printf ("%s\n", $0);
}
else if (action=="n")
{
getline;
}
# if search and "all" gave no instructions, ask the user
else if (action=="")
{
printf("Play %s (ynYN/)? ", brief) > "/dev/tty";
getline response < "/dev/tty";
if (response ~ /Y(es)?/)
{
response = "y";
all = "y";
}
else if (response ~ /N(o)?/)
{
response = "n";
all = "n";
}
else if (response ~ /^\//)
{
search = substr(response, 2);
if (search=="")
{
search = savesearch;
}
if (search=="")
{
printf("Search string: ") > "/dev/tty";
getline search < "/dev/tty";
}
savesearch = search;
response = "n";
}
if (response ~ /y(es)?/ || response=="")
{
getline;
printf ("%s\n", $0);
}
else
{
getline;
}
}
}
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