Documentation/RCU/Design/htmlqqz.sh

   1 #!/bin/sh
   2 #
   3 # Usage: sh htmlqqz.sh file
   4 #
   5 # Extracts and converts quick quizzes in a proto-HTML document file.htmlx.
   6 # Commands, all of which must be on a line by themselves:
   7 #
   8 #       "<p>@@QQ@@": Start of a quick quiz.
   9 #       "<p>@@QQA@@": Start of a quick-quiz answer.
  10 #       "<p>@@QQE@@": End of a quick-quiz answer, and thus of the quick quiz.
  11 #       "<p>@@QQAL@@": Place to put quick-quiz answer list.
  12 #
  13 # Places the result in file.html.
  14 #
  15 # This program is free software; you can redistribute it and/or modify
  16 # it under the terms of the GNU General Public License as published by
  17 # the Free Software Foundation; either version 2 of the License, or
  18 # (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful,
  21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 # GNU General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, you can access it online at
  27 # http://www.gnu.org/licenses/gpl-2.0.html.
  28 #
  29 # Copyright (c) 2013 Paul E. McKenney, IBM Corporation.
  30
  31 fn=$1
  32 if test ! -r $fn.htmlx
  33 then
  34         echo "Error: $fn.htmlx unreadable."
  35         exit 1
  36 fi
  37
  38 echo "<!-- DO NOT HAND EDIT. -->" > $fn.html
  39 echo "<!-- Instead, edit $fn.htmlx and run 'sh htmlqqz.sh $fn' -->" >> $fn.html
  40 awk < $fn.htmlx >> $fn.html '
  41
  42 state == "" && $1 != "<p>@@QQ@@" && $1 != "<p>@@QQAL@@" {
  43         print $0;
  44         if ($0 ~ /^<p>@@QQ/)
  45                 print "Bad Quick Quiz command: " NR " (expected <p>@@QQ@@ or <p>@@QQAL@@)." > "/dev/stderr"
  46         next;
  47 }
  48
  49 state == "" && $1 == "<p>@@QQ@@" {
  50         qqn++;
  51         qqlineno = NR;
  52         haveqq = 1;
  53         state = "qq";
  54         print "<p><a name=\"Quick Quiz " qqn "\"><b>Quick Quiz " qqn "</b>:</a>"
  55         next;
  56 }
  57
  58 state == "qq" && $1 != "<p>@@QQA@@" {
  59         qq[qqn] = qq[qqn] $0 "\n";
  60         print $0
  61         if ($0 ~ /^<p>@@QQ/)
  62                 print "Bad Quick Quiz command: " NR ". (expected <p>@@QQA@@)" > "/dev/stderr"
  63         next;
  64 }
  65
  66 state == "qq" && $1 == "<p>@@QQA@@" {
  67         state = "qqa";
  68         print "<br><a href=\"#qq" qqn "answer\">Answer</a>"
  69         next;
  70 }
  71
  72 state == "qqa" && $1 != "<p>@@QQE@@" {
  73         qqa[qqn] = qqa[qqn] $0 "\n";
  74         if ($0 ~ /^<p>@@QQ/)
  75                 print "Bad Quick Quiz command: " NR " (expected <p>@@QQE@@)." > "/dev/stderr"
  76         next;
  77 }
  78
  79 state == "qqa" && $1 == "<p>@@QQE@@" {
  80         state = "";
  81         next;
  82 }
  83
  84 state == "" && $1 == "<p>@@QQAL@@" {
  85         haveqq = "";
  86         print "<h3><a name=\"Answers to Quick Quizzes\">"
  87         print "Answers to Quick Quizzes</a></h3>"
  88         print "";
  89         for (i = 1; i <= qqn; i++) {
  90                 print "<a name=\"qq" i "answer\"></a>"
  91                 print "<p><b>Quick Quiz " i "</b>:"
  92                 print qq[i];
  93                 print "";
  94                 print "</p><p><b>Answer</b>:"
  95                 print qqa[i];
  96                 print "";
  97                 print "</p><p><a href=\"#Quick%20Quiz%20" i "\"><b>Back to Quick Quiz " i "</b>.</a>"
  98                 print "";
  99         }
 100         next;
 101 }
 102
 103 END {
 104         if (state != "")
 105                 print "Unterminated Quick Quiz: " qqlineno "." > "/dev/stderr"
 106         else if (haveqq)
 107                 print "Missing \"<p>@@QQAL@@\", no Quick Quiz." > "/dev/stderr"
 108 }'