forked from yinwang0/sicp
-
Notifications
You must be signed in to change notification settings - Fork 0
/
create_metafiles.rb
executable file
·171 lines (152 loc) · 5.38 KB
/
create_metafiles.rb
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
#! /usr/bin/ruby -w
# -*- coding: utf-8 -*-
# Creates NAV and OPF files used by EPUB3.
# Copyleft 2014 Andres Raba, GNU GPL v.3.
require 'nokogiri'
# Files
DIR = "html/" # directory where the book files are
IDX = DIR + "index.xhtml" # index file containing table of contents
NAV = "toc.xhtml" # epub3 navigation file (generated toc)
OPF = "content.opf" # epub3 metadata, manifest, and spine
PREFIX = 'x' # to prepend ids that could start with a digit
# Templates
NAV_T = <<EOF
<?xml version="1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:epub="http://www.idpf.org/2007/ops">
<head><title>SICP</title></head>
<body>
<nav id="toc" epub:type="toc">
<h1>Table of Contents</h1>
</nav>
</body>
</html>
EOF
now = Time.new.strftime("%Y-%m-%dT%H:%M:%SZ")
OPF_T = <<EOF
<?xml version="1.0"?>
<package xmlns="http://www.idpf.org/2007/opf"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xml:lang="en"
unique-identifier="bookid"
version="3.0">
<metadata>
<dc:title>Structure and Interpretation of Computer Programs, Second Edition</dc:title>
<dc:creator>Harold Abelson, Gerald Jay Sussman, Julie Sussman</dc:creator>
<dc:publisher>MIT Press</dc:publisher>
<dc:date>1996</dc:date>
<dc:identifier id="bookid">urn:uuid:a412368e-e0ac-42ce-8c01-0f0da52f5731</dc:identifier>
<dc:language>en-US</dc:language>
<meta name="cover" content="cover-image" />
<meta property="dcterms:modified">#{now}</meta>
</metadata>
<manifest>
<item id="css-style" href="#{DIR}css/style.css" media-type="text/css"/>
<item id="css-prettify" href="#{DIR}css/prettify.css" media-type="text/css"/>
<item id="css-fonts" href="#{DIR}css/fonts/fonts.css" media-type="text/css"/>
<item id="cover" href="index.xhtml" properties="svg" media-type="application/xhtml+xml"/>
<item id="cover-svg" href="#{DIR}fig/coverpage.std.svg" media-type="image/svg+xml"/>
<item id="cover-image" href="#{DIR}fig/cover.png" properties="cover-image" media-type="image/png"/>
<item id="cover-jpg" href="#{DIR}fig/bookwheel.jpg" media-type="image/jpeg"/>
<item id="toc" properties="nav" href="toc.xhtml" media-type="application/xhtml+xml"/>
<item id="nexus" href="#{DIR}index.xhtml" properties="svg" media-type="application/xhtml+xml"/>
<item id="font-license" href="#{DIR}css/fonts/LICENCE.txt" media-type="text/plain"/>
<item id="ofl-1_1" href="#{DIR}css/fonts/OFL-1.1.txt" media-type="text/plain"/>
<item id="gpl" href="#{DIR}css/fonts/GPL.txt" media-type="text/plain"/>
<item id="license" href="LICENSE" media-type="text/plain"/>
</manifest>
<spine>
<itemref idref="cover" linear="no"/>
<itemref idref="nexus"/>
</spine>
<guide>
<reference href="index.xhtml" type="cover" title="Cover"/>
</guide>
</package>
EOF
# Procedures
def make_toc
# Original toc as unordered list, extracted from IDX file
toc = Nokogiri::HTML(open(IDX)).css("div.contents > ul")
toc.css("ul").each do |ul|
ul.delete('class') # remove unneeded 'class' attribute
ul.name = 'ol' # make unordered list tags to ordered
end
toc.css("a").each do |a|
a['href'] = DIR + a['href'] # prepend subdirectory
end
return toc
end
def prettyprint(nodeset)
pretty = Nokogiri::XML(nodeset.inner_html) { |c| c.default_xml.noblanks }
.to_xml(:indent => 2)
return pretty
end
def write_nav(toc)
nav = Nokogiri::XML(NAV_T)
nav.css("nav#toc")[0].add_child(toc) # inject toc to template
pretty = prettyprint(nav)
IO.write(NAV, pretty)
end
def contains_tag?(tag, link)
if (/<#{tag}/.match(IO.read(link)))
return true
else
return false
end
end
def get_links(type) # type must be 'svg' or 'woff'
glob = {
'svg' => "#{DIR}fig/*/*.svg",
'woff' => "#{DIR}css/fonts/*.woff"
}
pattern = {
'svg' => %r!(?<=/)[^/]+?(?=\.std|\.svg)!,
'woff' => %r!(?<=/)[^/]+?(?=\.woff)!
}
throw "Type '#{type}' not recognized." unless glob[type]
links = `ls #{glob[type]}`.split(/\s/)
linkhashes = links.map do |link|
key = pattern[type].match(link)[0].tr('.', '-')
{ key => link }
end
return linkhashes
end
def xml_elem(tag)
return Nokogiri::XML.fragment("<#{tag} />").css(tag)[0]
end
def put_links(xmlobj, links, mediatype)
links.each do |link|
item = xml_elem("item")
item['id'] = PREFIX + link.keys[0]
item['href'] = link.values[0]
item['media-type'] = mediatype
xmlobj.css("manifest")[0].add_child(item) # add link to manifest
end
end
def write_opf(links)
opf = Nokogiri::XML(OPF_T)
links.each do |link|
item = xml_elem("item")
item['id'] = PREFIX + link.split(/\/|\./)[1]
item['href'] = link
properties = []
properties.push('mathml') if contains_tag?("math", link)
properties.push('svg') if contains_tag?("object", link)
item['properties'] = properties.join(' ') if properties.any?
item['media-type'] = "application/xhtml+xml"
opf.css("manifest")[0].add_child(item) # add item to manifest
itemref = xml_elem("itemref")
itemref['idref'] = item['id']
opf.css("spine")[0].add_child(itemref) # add itemref to spine
end
put_links(opf, get_links('svg'), "image/svg+xml")
put_links(opf, get_links('woff'), "application/font-woff")
pretty = prettyprint(opf)
IO.write(OPF, pretty)
end
# Main program
@toc = make_toc()
@links = @toc.css("a").map { |a| a['href'].split('#')[0] } .uniq
write_nav(@toc)
write_opf(@links)