84 lines
3.2 KiB
Plaintext
84 lines
3.2 KiB
Plaintext
#!/usr/bin/env nomsu -V7.0.0
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###
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This file defines upgrades from Nomsu <2.4 to Nomsu 2.4
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use "compatibility/compatibility"
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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upgrade $tree to "2.4" as:
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unless ($tree is "Action" syntax tree): return
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if $tree.stub is:
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"when" "if":
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if (#$tree == 3):
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return $tree
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$conditions = []
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$new_lines = []
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$body =
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($tree.2 upgraded) if ($tree.2 is "Block" syntax tree) else [$tree.2 upgraded]
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for $line in $body:
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when:
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(not ($line is "Action" syntax tree)):
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$new_lines, add $line
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($line.stub == "*"):
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if (#$line == 2):
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$conditions, add $line.2
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..else:
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$new_lines, add $line
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($line.stub == "* else"):
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$new_lines, add ("Action" tree with "else" $line.3)
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else:
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$conditions, add $line.2
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$action = $line.3
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unless ($action is "Block" syntax tree):
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$action = (=lua "SyntaxTree{type='Block', source=\$action.source, \$action}")
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$conditions, add $action
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$new_lines, add
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=lua ("
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SyntaxTree{type='Action', source=\$conditions[1].source, unpack(\$conditions)}
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")
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$conditions = []
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return
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"Action" tree with "when"
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"Block" tree from $tree.2.source with (unpack $new_lines)
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"if 1 is ?" "if 1 = ?":
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$values = []
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$new_lines = []
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$body =
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($tree.5 upgraded) if ($tree.5 is "Block" syntax tree) else [$tree.5 upgraded]
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for $line in $body:
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when:
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(not ($line is "Action" syntax tree)):
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$new_lines, add $line
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($line.stub == "*"):
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if (#$line == 2):
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$values, add $line.2
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..else:
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$new_lines, add $line
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($line.stub == "* else"):
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$new_lines, add ("Action" tree with "else" $line.3)
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else:
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$values, add $line.2
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$action = $line.3
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unless ($action is "Block" syntax tree):
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$action = ("Block" tree with $action)
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$values, add $action
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$new_lines, add
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=lua "SyntaxTree{type='Action', source=\$values[1].source, unpack(\$values)}"
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$values = []
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return
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"Action" tree with "if" ($tree.2 upgraded) "is"
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"Block" tree from $tree.5.source with (unpack $new_lines)
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