Commit | Line | Data |
---|---|---|
168e428f PH |
1 | #! /usr/bin/perl |
2 | ||
595028e4 | 3 | # $Cambridge: exim/doc/doc-docbook/Tidytxt,v 1.3 2007/08/29 13:37:28 ph10 Exp $ |
168e428f | 4 | |
9b371988 PH |
5 | # Script to tidy up the output of w3m when it makes a text file. First we |
6 | # convert sequences of blank lines into a single blank line, to get everything | |
7 | # uniform. Then we go through and insert blank lines before chapter and | |
8 | # sections, also converting chapter titles to uppercase. | |
168e428f | 9 | |
595028e4 PH |
10 | # We also have to do some character translation in the first pass. It seems |
11 | # that xmlto now generates Unicode in its HTML pages. This gives three problems: | |
12 | # (1) It inserts the byte sequence C2 A0 (U+00A0) as a fixed-width space; | |
13 | # (2) It inserts a whole slew of "box drawing" characters round the heading. | |
14 | # (3) It uses U+25CF as its bullet character. | |
15 | ||
9b371988 PH |
16 | @lines = <>; |
17 | ||
18 | $lastwasblank = 0; | |
19 | foreach $line (@lines) | |
168e428f | 20 | { |
595028e4 PH |
21 | $line =~ s/\x{c2}\x{a0}/ /g; |
22 | $line =~ s/\x{e2}\x{94}[\x{80}-\x{bf}]/-/g; | |
23 | $line =~ s/\x{e2}\x{97}\x{8f}/*/g; | |
24 | ||
9b371988 | 25 | if ($line =~ /^\s*$/) |
168e428f | 26 | { |
9b371988 PH |
27 | $line = "" if $lastwasblank; |
28 | $lastwasblank = 1; | |
168e428f PH |
29 | next; |
30 | } | |
9b371988 PH |
31 | $lastwasblank = 0; |
32 | } | |
33 | ||
34 | # Find start of TOC, uppercasing its title | |
35 | ||
36 | for ($i = 0; $i < scalar @lines; $i++) | |
37 | { | |
38 | $lines[$i] = "TABLE OF CONTENTS\n" if $lines[$i] =~ /^Table of Contents/; | |
595028e4 | 39 | last if $lines[$i] =~ /^1\. /; |
9b371988 PH |
40 | } |
41 | ||
42 | # Find start of first chapter | |
43 | ||
44 | for ($i++; $i < scalar @lines; $i++) | |
595028e4 | 45 | { last if $lines[$i] =~ /^1\. /; } |
9b371988 PH |
46 | |
47 | # Process the body. We can detect the starts of chapters and sections by | |
48 | # looking for preceding and following blank lines, and then matching against | |
49 | # the numbers. | |
50 | ||
51 | $chapter = 0; | |
52 | for (; $i < scalar @lines; $i++) | |
53 | { | |
54 | next if $lines[$i-1] !~ /^$/ || $lines[$i+1] !~ /^$/; | |
55 | ||
56 | # Start of chapter | |
57 | ||
58 | if ($lines[$i] =~ /^(\d+)\. / && $1 == $chapter + 1) | |
59 | { | |
60 | $chapter++; | |
61 | $section = 0; | |
62 | $lines[$i] = "\n\n" . ("=" x 79) . "\n" . uc($lines[$i]); | |
63 | } | |
64 | ||
65 | # Start of next section | |
66 | ||
67 | elsif ($lines[$i] =~ /^(\d+)\.(\d+) / && $1 == $chapter && $2 == $section + 1) | |
68 | { | |
69 | $section++; | |
70 | $lines[$i] = "\n$lines[$i]" . "-" x (length($lines[$i]) - 1) . "\n"; | |
71 | } | |
168e428f PH |
72 | } |
73 | ||
9b371988 PH |
74 | print @lines; |
75 | ||
168e428f | 76 | # End |