edu.stanford.nlp.trees

Class TreePrint

java.lang.Object

edu.stanford.nlp.trees.TreePrint

public class TreePrint
extends Object

A class for customizing the print method(s) for a edu.stanford.nlp.trees.Tree as the output of the parser. This class supports printing in multiple ways and altering behavior via properties specified at construction.

Author:

Roger Levy, Christopher Manning, Galen Andrew

Field Summary

Fields

Modifier and Type	Field and Description
static String	headMark
static String[]	outputTreeFormats The legal output tree formats.
static String	rootLabelOnlyFormat

Constructor Summary

Constructors

Constructor and Description
TreePrint(String formats) Construct a new TreePrint that will print the given formats.
TreePrint(String formats, String options, TreebankLanguagePack tlp) Make a TreePrint instance.
TreePrint(String formatString, String optionsString, TreebankLanguagePack tlp, HeadFinder hf, HeadFinder typedDependencyHF) Make a TreePrint instance.
TreePrint(String formats, TreebankLanguagePack tlp) Make a TreePrint instance with no options specified.

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args) This provides a simple main method for calling TreePrint.
Tree	markHeadNodes(Tree t)
static void	print(Collection<TypedDependency> dependencies, boolean includeTags, PrintWriter pw) USED BY TREEPRINT AND WSD.SUPWSD.PREPROCESS Prints this set of typed dependencies to the specified PrintWriter.
static void	print(Collection<TypedDependency> dependencies, String format, boolean includeTags, PrintWriter pw) USED BY TREEPRINT Prints this set of typed dependencies to the specified PrintWriter in the specified format.
void	printFooter(PrintWriter pw)
void	printHeader(PrintWriter pw, String charset)
void	printTree(Tree t) Prints the tree to the default PrintWriter.
void	printTree(Tree t, PrintWriter pw) Prints the tree, with an empty ID.
void	printTree(Tree t, String id, PrintWriter pw) Prints the tree according to the options specified for this instance.
void	printTrees(List<ScoredObject<Tree>> trees, String id, PrintWriter pw) Prints the trees according to the options specified for this instance.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

rootLabelOnlyFormat

public static final String rootLabelOnlyFormat

See Also:

Constant Field Values

headMark

public static final String headMark

See Also:

Constant Field Values

outputTreeFormats

public static final String[] outputTreeFormats

The legal output tree formats.

Constructor Detail

TreePrint

public TreePrint(String formats)

Construct a new TreePrint that will print the given formats. Warning! This is the anglocentric constructor. It will work correctly only for English.

Parameters:

formats - The formats to print the tree in.

TreePrint

public TreePrint(String formats,
         TreebankLanguagePack tlp)

Make a TreePrint instance with no options specified.

TreePrint

public TreePrint(String formats,
         String options,
         TreebankLanguagePack tlp)

Make a TreePrint instance. This one uses the default tlp headFinder.

TreePrint

public TreePrint(String formatString,
         String optionsString,
         TreebankLanguagePack tlp,
         HeadFinder hf,
         HeadFinder typedDependencyHF)

Make a TreePrint instance.

Parameters:

formatString - A comma separated list of ways to print each Tree. For instance, "penn" or "words,typedDependencies". Known formats are: oneline, penn, latexTree, xmlTree, words, wordsAndTags, rootSymbolOnly, dependencies, typedDependencies, typedDependenciesCollapsed, collocations, semanticGraph, conllStyleDependencies, conll2007. The last two are both tab-separated values formats. The latter has a lot more columns filled with underscores. All of them print a blank line after the output except for oneline. oneline is also not meaningful in XML output (it is ignored: use penn instead). (Use of typedDependenciesCollapsed is deprecated. It works but we recommend instead selecting a type of dependencies using the optionsString argument. Note in particular that typedDependenciesCollapsed does not do CC propagation, which we generally recommend.)

optionsString - Options that additionally specify how trees are to be printed (for instance, whether stemming should be done). Known options are: stem, lexicalize, markHeadNodes, xml, removeTopBracket, transChinese, includePunctuationDependencies, basicDependencies, treeDependencies, CCPropagatedDependencies, collapsedDependencies, nonCollapsedDependencies, nonCollapsedDependenciesSeparated, includeTags .

tlp - The TreebankLanguagePack used to do things like delete or ignore punctuation in output

hf - The HeadFinder used in printing output

Method Detail

printTree

public void printTree(Tree t)

Prints the tree to the default PrintWriter.

Parameters:

t - The tree to display

printTree

public void printTree(Tree t,
             PrintWriter pw)

Prints the tree, with an empty ID.

Parameters:

t - The tree to display

pw - The PrintWriter to print it to

printTree

public void printTree(Tree t,
             String id,
             PrintWriter pw)

Prints the tree according to the options specified for this instance. If the tree t is null, then the code prints a line indicating a skipped tree. Under the XML option this is an s element with the skipped attribute having value true, and, otherwise, it is the token SENTENCE_SKIPPED_OR_UNPARSABLE.

Parameters:

t - The tree to display

id - A name for this sentence

pw - Where to display the tree

printTrees

public void printTrees(List<ScoredObject<Tree>> trees,
              String id,
              PrintWriter pw)

Prints the trees according to the options specified for this instance. If the tree t is null, then the code prints a line indicating a skipped tree. Under the XML option this is an s element with the skipped attribute having value true, and, otherwise, it is the token SENTENCE_SKIPPED_OR_UNPARSABLE.

Parameters:

trees - The list of trees to display

id - A name for this sentence

pw - Where to dislay the tree

printHeader

public void printHeader(PrintWriter pw,
               String charset)

printFooter

public void printFooter(PrintWriter pw)

markHeadNodes

public Tree markHeadNodes(Tree t)

main

public static void main(String[] args)

This provides a simple main method for calling TreePrint. Flags supported are:

1. -format format (like -outputFormat of parser, default "penn")
2. -options options (like -outputFormatOptions of parser, default "")
3. -tLP class (the TreebankLanguagePack, default "edu.stanford.nlp.tree.PennTreebankLanguagePack")
4. -hf class (the HeadFinder, default, the one in the class specified by -tLP)
5. -useTLPTreeReader (use the treeReaderFactory() inside the -tLP class; otherwise a PennTreeReader with no normalization is used)

The single argument should be a file containing Trees in the format that is either Penn Treebank s-expressions or as specified by -useTLPTreeReader and the -tLP class, or if there is no such argument, trees are read from stdin and the program runs as a filter.

Parameters:

args - Command line arguments, as above.

print

public static void print(Collection<TypedDependency> dependencies,
         boolean includeTags,
         PrintWriter pw)

USED BY TREEPRINT AND WSD.SUPWSD.PREPROCESS Prints this set of typed dependencies to the specified PrintWriter.

Parameters:

dependencies - The collection of TypedDependency to print

pw - Where to print them

print

public static void print(Collection<TypedDependency> dependencies,
         String format,
         boolean includeTags,
         PrintWriter pw)

USED BY TREEPRINT Prints this set of typed dependencies to the specified PrintWriter in the specified format.

Parameters:

dependencies - The collection of TypedDependency to print

format - "xml" or "readable" or other

pw - Where to print them