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diff --git a/doc/doc-scripts/faqchk b/doc/doc-scripts/faqchk
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+#!/usr/bin/perl -w
+# $Cambridge: exim/doc/doc-scripts/faqchk,v 1.1 2004/10/07 15:04:35 ph10 Exp $
+
+# Script to check the FAQ source and make sure I have all the numbers
+# in the right order without duplication. Also check the numbers of blank
+# lines. It gives up on any error (other than bad blank line counts).
+
+sub oops {
+print "\nLine $line: $_[0]\n";
+print;
+exit 1;
+}
+
+sub poops {
+print "\nLine $line: $_[0]\n";
+print;
+$precede_fail = 1;
+}
+
+
+$line = 0;
+$section = -1;
+$expect_answer = 0;
+$precede_fail = 0;
+
+while (<>)
+  {
+  $line++;
+  if (/^\s*$/)
+    {
+    $blankcount++;
+    next;
+    }
+  $preceded = $blankcount;
+  $blankcount = 0;
+
+  if (/^(\d+)\./)
+    {
+    &poops("$preceded empty lines precede (3 expected)") if $preceded != 3;
+    &oops(sprint("Answer %02d%02d is missing\n", $section, $question))
+      if $expect_answer;
+    $section = $1;
+    $question = ($section == 20)? 0 : 1;
+    $expected = 1;
+    if ($section == 99)
+      {
+      $c = 1;
+      $f = 1;
+      }
+    next;
+    }
+
+  if ($section != 99)
+    {
+    if (/^Q(\d\d)(\d\d):/)
+      {
+      &poops("$preceded empty lines precede ($expected expected)")
+        if $preceded != $expected;
+      $expected = 2;
+
+      &oops("Answer expected") if $expect_answer;
+      &oops("Q$1$2 is in the wrong section") if ($1 != $section);
+      &oops("Q$1$2 is out of order") if $2 != $question;
+
+      $expect_answer = 1;
+      next;
+      }
+
+    if (/^A(\d\d)(\d\d):/)
+      {
+      &poops("$preceded empty lines precede (1 expected)") if $preceded != 1;
+
+      &oops("Question expected") if !$expect_answer;
+      &oops("A$1$2 is in the wrong section") if $1 != $section;
+      &oops("A$1$2 is out of order") if $2 != $question++;
+
+      $expect_answer = 0;
+      next;
+      }
+    }
+
+  else
+    {
+    if (/^C(\d\d\d):/)
+      {
+      &oops("C$1 is mixed up in the Fs") if $f != 1;
+      # Some Cxxx configs are omitted (not translated from Exim 3) so can
+      # only check increasing number.
+      &oops("C$1 is out of order") if $1 < $c;
+      $c = $1;
+      }
+    elsif (/^F(\d\d\d):/)
+      {
+      &oops("F$1 is out of order") if $1 != $f++;
+      next;
+      }
+    }
+  }
+
+exit 1 if $precede_fail;
+
+# End