@package antlr3.dottreegenerator
@brief ANTLR3 runtime package, tree module
This module contains all support classes for AST construction and tree parsers.
def google.appengine._internal.antlr3.dottreegen.toDOT |
( |
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tree, |
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adaptor = None , |
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treeST = DOTTreeGenerator._treeST , |
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edgeST = DOTTreeGenerator._edgeST |
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) |
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Generate DOT (graphviz) for a whole tree not just a node.
For example, 3+4*5 should generate:
digraph {
node [shape=plaintext, fixedsize=true, fontsize=11, fontname="Courier",
width=.4, height=.2];
edge [arrowsize=.7]
"+"->3
"+"->"*"
"*"->4
"*"->5
}
Return the ST not a string in case people want to alter.
Takes a Tree interface object.
Example of invokation:
import antlr3
import antlr3.extras
input = antlr3.ANTLRInputStream(sys.stdin)
lex = TLexer(input)
tokens = antlr3.CommonTokenStream(lex)
parser = TParser(tokens)
tree = parser.e().tree
print tree.toStringTree()
st = antlr3.extras.toDOT(t)
print st