Python nltk.chunk.RegexpParser() Examples

The following are 10 code examples of nltk.chunk.RegexpParser(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module nltk.chunk , or try the search function .
Example #1
Source File: toolbox.py    From razzy-spinner with GNU General Public License v3.0 6 votes vote down vote up 
def _chunk_parse(self, grammar=None, root_label='record', trace=0, **kwargs):
        """
        Returns an element tree structure corresponding to a toolbox data file
        parsed according to the chunk grammar.

        :type grammar: str
        :param grammar: Contains the chunking rules used to parse the
            database.  See ``chunk.RegExp`` for documentation.
        :type root_label: str
        :param root_label: The node value that should be used for the
            top node of the chunk structure.
        :type trace: int
        :param trace: The level of tracing that should be used when
            parsing a text.  ``0`` will generate no tracing output;
            ``1`` will generate normal tracing output; and ``2`` or
            higher will generate verbose tracing output.
        :type kwargs: dict
        :param kwargs: Keyword arguments passed to ``toolbox.StandardFormat.fields()``
        :rtype: ElementTree._ElementInterface
        """
        from nltk import chunk
        from nltk.tree import Tree

        cp = chunk.RegexpParser(grammar, root_label=root_label, trace=trace)
        db = self.parse(**kwargs)
        tb_etree = Element('toolbox_data')
        header = db.find('header')
        tb_etree.append(header)
        for record in db.findall('record'):
            parsed = cp.parse([(elem.text, elem.tag) for elem in record])
            tb_etree.append(self._tree2etree(parsed))
        return tb_etree
Example #2
Source File: toolbox.py    From luscan-devel with GNU General Public License v2.0 6 votes vote down vote up 
def _chunk_parse(self, grammar=None, top_node='record', trace=0, **kwargs):
        """
        Returns an element tree structure corresponding to a toolbox data file
        parsed according to the chunk grammar.

        :type grammar: str
        :param grammar: Contains the chunking rules used to parse the
            database.  See ``chunk.RegExp`` for documentation.
        :type top_node: str
        :param top_node: The node value that should be used for the
            top node of the chunk structure.
        :type trace: int
        :param trace: The level of tracing that should be used when
            parsing a text.  ``0`` will generate no tracing output;
            ``1`` will generate normal tracing output; and ``2`` or
            higher will generate verbose tracing output.
        :type kwargs: dict
        :param kwargs: Keyword arguments passed to ``toolbox.StandardFormat.fields()``
        :rtype: ElementTree._ElementInterface
        """
        from nltk import chunk
        from nltk.tree import Tree

        cp = chunk.RegexpParser(grammar, top_node=top_node, trace=trace)
        db = self.parse(**kwargs)
        tb_etree = Element('toolbox_data')
        header = db.find('header')
        tb_etree.append(header)
        for record in db.findall('record'):
            parsed = cp.parse([(elem.text, elem.tag) for elem in record])
            tb_etree.append(self._tree2etree(parsed))
        return tb_etree
Example #3
Source File: toolbox.py    From V1EngineeringInc-Docs with Creative Commons Attribution Share Alike 4.0 International 6 votes vote down vote up 
def _chunk_parse(self, grammar=None, root_label='record', trace=0, **kwargs):
        """
        Returns an element tree structure corresponding to a toolbox data file
        parsed according to the chunk grammar.

        :type grammar: str
        :param grammar: Contains the chunking rules used to parse the
            database.  See ``chunk.RegExp`` for documentation.
        :type root_label: str
        :param root_label: The node value that should be used for the
            top node of the chunk structure.
        :type trace: int
        :param trace: The level of tracing that should be used when
            parsing a text.  ``0`` will generate no tracing output;
            ``1`` will generate normal tracing output; and ``2`` or
            higher will generate verbose tracing output.
        :type kwargs: dict
        :param kwargs: Keyword arguments passed to ``toolbox.StandardFormat.fields()``
        :rtype: ElementTree._ElementInterface
        """
        from nltk import chunk
        from nltk.tree import Tree

        cp = chunk.RegexpParser(grammar, root_label=root_label, trace=trace)
        db = self.parse(**kwargs)
        tb_etree = Element('toolbox_data')
        header = db.find('header')
        tb_etree.append(header)
        for record in db.findall('record'):
            parsed = cp.parse([(elem.text, elem.tag) for elem in record])
            tb_etree.append(self._tree2etree(parsed))
        return tb_etree
Example #4
Source File: nltk_processors.py    From forte with Apache License 2.0 5 votes vote down vote up 
def initialize(self, resources: Resources, configs: Config):
        super().initialize(resources, configs)
        self.chunker = RegexpParser(configs.pattern)
Example #5
Source File: regexp.py    From V1EngineeringInc-Docs with Creative Commons Attribution Share Alike 4.0 International 5 votes vote down vote up 
def __str__(self):
        """
        :return: a verbose string representation of this
            ``RegexpParser``.
        :rtype: str
        """
        s = "chunk.RegexpParser with %d stages:\n" % len(self._stages)
        margin = 0
        for parser in self._stages:
            s += "%s\n" % parser
        return s[:-1]


##//////////////////////////////////////////////////////
##  Demonstration code
##//////////////////////////////////////////////////////
Example #6
Source File: regexp.py    From razzy-spinner with GNU General Public License v3.0 4 votes vote down vote up 
def __repr__(self):
        """
        :return: a concise string representation of this ``chunk.RegexpParser``.
        :rtype: str
        """
        return "<chunk.RegexpParser with %d stages>" % len(self._stages)
Example #7
Source File: regexp.py    From razzy-spinner with GNU General Public License v3.0 4 votes vote down vote up 
def __str__(self):
        """
        :return: a verbose string representation of this
            ``RegexpParser``.
        :rtype: str
        """
        s = "chunk.RegexpParser with %d stages:\n" % len(self._stages)
        margin = 0
        for parser in self._stages:
            s += "%s\n" % parser
        return s[:-1]

##//////////////////////////////////////////////////////
##  Demonstration code
##//////////////////////////////////////////////////////
Example #8
Source File: regexp.py    From luscan-devel with GNU General Public License v2.0 4 votes vote down vote up 
def __repr__(self):
        """
        :return: a concise string representation of this ``chunk.RegexpParser``.
        :rtype: str
        """
        return "<chunk.RegexpParser with %d stages>" % len(self._stages)
Example #9
Source File: regexp.py    From luscan-devel with GNU General Public License v2.0 4 votes vote down vote up 
def __str__(self):
        """
        :return: a verbose string representation of this
            ``RegexpParser``.
        :rtype: str
        """
        s = "chunk.RegexpParser with %d stages:\n" % len(self._stages)
        margin = 0
        for parser in self._stages:
            s += parser.__str__() + "\n"
        return s[:-1]

##//////////////////////////////////////////////////////
##  Demonstration code
##//////////////////////////////////////////////////////
Example #10
Source File: regexp.py    From V1EngineeringInc-Docs with Creative Commons Attribution Share Alike 4.0 International 4 votes vote down vote up 
def __repr__(self):
        """
        :return: a concise string representation of this ``chunk.RegexpParser``.
        :rtype: str
        """
        return "<chunk.RegexpParser with %d stages>" % len(self._stages)