blob: a2dba36e02dff74fe87db932b5c9f0784a4e1b8f (
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
|
def main
prelude
grammar
usercode
end
def prelude
while line = ARGF.gets
case line
when %r</\*%%%\*/>
puts '/*'
when %r</\*%>
puts '*/'
when %r<%\*/>
puts
when /\A%%/
puts '%%'
return
when /\A%token/
puts line.sub(/<\w+>/, '<val>')
when /\A%type/
puts line.sub(/<\w+>/, '<val>')
else
print line
end
end
end
def grammar
while line = ARGF.gets
case line
when %r</\*%%%\*/>
puts '#if 0'
when %r</\*%c%\*/>
puts '/*'
when %r</\*%c>
puts '*/'
when %r</\*%>
puts '#endif'
when %r<%\*/>
puts
when /\A%%/
puts '%%'
return
else
print line
end
end
end
def usercode
while line = ARGF.gets
print line
end
end
main
|