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
|
#!/usr/bin/env nomsu -V6.14
#
This file defines upgrades from Nomsu <2.4 to Nomsu 2.4
use "compatibility/compatibility"
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
upgrade $tree to "2.4" as:
unless ($tree is "Action" syntax tree): return
if $tree.stub is:
"when" "if":
if ((size of $tree) == 3): return $tree
$conditions = []
$new_lines = []
$body =
($tree.2 upgraded) if ($tree.2 is "Block" syntax tree) else [$tree.2 upgraded]
for $line in $body:
when:
(not ($line is "Action" syntax tree)):
$new_lines, add $line
($line.stub is "*"):
if ((size of $line) == 2):
$conditions, add $line.2
..else:
$new_lines, add $line
($line.stub == "* else"):
$new_lines, add (\(else $block) with vars {.block = $line.3})
else:
$conditions, add $line.2
$action = $line.3
unless ($action is "Block" syntax tree):
$action = (=lua "SyntaxTree{type='Block', source=\$action.source, \$action}")
$conditions, add $action
$new_lines, add
=lua ("
SyntaxTree{type='Action', source=\$conditions[1].source, unpack(\$conditions)}
")
$conditions = []
return
\(when $body) with vars {
.body =
=lua "SyntaxTree{type='Block', source=\$tree[2].source, unpack(\$new_lines)}"
}
"if 1 is ?" "if 1 = ?":
$values = []
$new_lines = []
$body =
($tree.5 upgraded) if ($tree.5 is "Block" syntax tree) else [$tree.5 upgraded]
for $line in $body:
when:
(not ($line is "Action" syntax tree)):
$new_lines, add $line
($line.stub is "*"):
if ((size of $line) == 2):
$values, add $line.2
..else:
$new_lines, add $line
($line.stub == "* else"):
$new_lines, add (\(else $block) with vars {.block = $line.3})
else:
$values, add $line.2
$action = $line.3
unless ($action is "Block" syntax tree): $action = \(: $action)
$values, add $action
$new_lines, add
=lua "SyntaxTree{type='Action', source=\$values[1].source, unpack(\$values)}"
$values = []
return
\(if $var is $body) with vars {
.var = ($tree.2 upgraded)
.body =
=lua "SyntaxTree{type='Block', source=\$tree[5].source, unpack(\$new_lines)}"
}
|
