blob: 9c123516c504acd21ac27b034924bc496db8aa6c (
plain)
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
|
require 'open3'
require 'json'
module Pandoc
def self.prog
@prog ||= 'pandoc'
end
def self.prog=(val)
@prog = val
end
def self.load(fmt, input)
cmd = Pandoc::prog + " -t json"
unless fmt.nil?
cmd += " -f " + fmt
end
str = input
if str.respond_to? :read
str = str.read
end
json = ''
errors = ''
Open3::popen3(cmd) do |stdin, stdout, stderr|
stdin.puts(str)
stdin.close
json = stdout.read
errors = stderr.read
end
unless errors.empty?
raise errors
end
return Pandoc::AST::new(json)
end
class AST
def initialize(json)
@js = JSON::parse(json)
end
def [](key)
Pandoc::AST::js2sane(@js[0]["unMeta"][key])
end
def to(format)
cmd = Pandoc::prog + " -f json -t " + format.to_s
output = ''
errors = ''
Open3::popen3(cmd) do |stdin, stdout, stderr|
stdin.puts @js.to_json
stdin.close
output = stdout.read
errors = stderr.read
end
unless errors.empty?
raise errors
end
return output
end
def self.js2sane(js)
if js.nil?
return js
end
case js["t"]
when "MetaList"
js["c"].map{|c| js2sane(c)}
when "MetaInlines"
js["c"].map{|c| js2sane(c)}.join()
when "Space"
" "
when "MetaString"
js["c"]
when "Str"
js["c"]
end
end
end
end
|
