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349 lines
11 KiB
349 lines
11 KiB
"""Convert a series of CoNNL-U files to a TEI file.
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This script was developed in the context of a specific task and may not generalise as expected. Use at your own risk.
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"""
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import argparse
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import re
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import sys
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from glob import glob
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from lxml import etree
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class Sentence:
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def __init__(self, _id, no_ud=False, system='jos'):
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self._id = _id
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self.items = []
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self.links = []
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self.srl_links = []
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self.no_ud = no_ud
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self.system = system
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def add_item(self, token, lemma, upos, upos_other, xpos, misc):
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no_space_after = 'SpaceAfter' in misc and misc['SpaceAfter'] == 'No'
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ner = misc['NER'] if 'NER' in misc else 'O'
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self.items.append([token, lemma, upos, upos_other, xpos, no_space_after, ner])
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def add_link(self, link_ref, link_type):
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self.links.append([link_ref, link_type])
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def add_srl_link(self, link_ref, link_type):
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self.srl_links.append([link_ref, link_type])
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def as_xml(self, id_prefix=None):
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if id_prefix:
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xml_id = id_prefix + '.' + self._id
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else:
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xml_id = self._id
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base = etree.Element('s')
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set_xml_attr(base, 'id', xml_id)
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id_counter = 1
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in_seg = False
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sentence_base = base
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for item in self.items:
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token, lemma, upos, upos_other, xpos, no_space_after, ner = item
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if ner[0] == 'B':
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if in_seg:
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sentence_base.append(base)
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in_seg = True
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base = etree.Element('seg')
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base.set('type', 'name')
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base.set('subtype', f'{ner[2:].lower()}')
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elif ner[0] == 'O':
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if in_seg:
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sentence_base.append(base)
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base = sentence_base
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in_seg = False
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if xpos in {'U', 'Z'}: # hmm, safe only as long as U is unused in English tagset and Z in Slovenian one
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to_add = etree.Element('pc')
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else:
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to_add = etree.Element('w')
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to_add.set('lemma', lemma)
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to_add.set('ana', 'mte:' + xpos)
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if not self.no_ud:
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if upos_other != '_':
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to_add.set('msd', f'UposTag={upos}|{upos_other}')
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else:
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to_add.set('msd', f'UposTag={upos}')
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set_xml_attr(to_add, 'id', "{}.{}".format(xml_id, id_counter))
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to_add.text = token
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id_counter += 1
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if no_space_after:
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to_add.set('join', 'right')
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base.append(to_add)
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if in_seg:
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sentence_base.append(base)
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base = sentence_base
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# depparsing linkGrp
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link_grp = etree.Element('linkGrp')
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link_grp.set('corresp', '#'+xml_id)
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link_grp.set('targFunc', 'head argument')
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link_grp.set('type', self.system.upper() + '-SYN')
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for link_id, item in enumerate(self.links):
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link_ref, link_type = item
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link = etree.Element('link')
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link.set('ana', self.system + '-syn:' + link_type.replace(':','_'))
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if link_ref == u'0':
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link.set('target', '#' + xml_id + ' #' + xml_id + '.' + str(link_id + 1))
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else:
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link.set('target', '#' + xml_id + '.' + link_ref + ' #' + xml_id + '.' + str(link_id + 1))
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link_grp.append(link)
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base.append(link_grp)
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# srl linkGrp
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if self.srl_links:
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link_grp = etree.Element('linkGrp')
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link_grp.set('corresp', '#' + xml_id)
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link_grp.set('targFunc', 'head argument')
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link_grp.set('type', 'SRL')
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for link_id, item in enumerate(self.srl_links):
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link_ref, link_type = item
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link = etree.Element('link')
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link.set('ana', 'srl:' + link_type.replace(':', '_'))
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if link_ref == u'0':
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link.set('target', '#' + xml_id + ' #' + xml_id + '.' + str(link_id + 1))
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else:
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link.set('target', '#' + xml_id + '.' + link_ref + ' #' + xml_id + '.' + str(link_id + 1))
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link_grp.append(link)
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base.append(link_grp)
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return base
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class Paragraph:
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def __init__(self, _id):
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self._id = _id if _id is not None else 'no-id'
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self.sentences = []
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def add_sentence(self, sentence):
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self.sentences.append(sentence)
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def as_xml(self, id_prefix=None):
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if id_prefix:
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xml_id = id_prefix + '.' + self._id
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else:
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xml_id = self._id
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p = etree.Element('p')
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set_xml_attr(p, 'id', xml_id)
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for sent in self.sentences:
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p.append(sent.as_xml(id_prefix=id_prefix))
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return p
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class TeiDocument:
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def __init__(self, _id, paragraphs=list()):
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self._id = _id
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self.paragraphs = paragraphs
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def as_xml(self):
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root = etree.Element('TEI')
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root.set('xmlns', 'http://www.tei-c.org/ns/1.0')
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set_xml_attr(root, 'lang', 'sl')
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xml_id = self._id
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if xml_id is not None:
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set_xml_attr(root, 'id', xml_id)
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tei_header = etree.SubElement(root, 'teiHeader')
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text = etree.SubElement(root, 'text')
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body = etree.SubElement(text, 'body')
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for para in self.paragraphs:
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body.append(para.as_xml(id_prefix=xml_id))
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encoding_desc = etree.SubElement(tei_header, 'encodingDesc')
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tags_decl = etree.SubElement(encoding_desc, 'tagsDecl')
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namespace = etree.SubElement(tags_decl, 'namespace')
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namespace.set('name', 'http://www.tei-c.org/ns/1.0')
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for tag in ['p', 's', 'pc', 'w']:
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count = int(text.xpath('count(.//{})'.format(tag)))
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tag_usage = etree.SubElement(namespace, 'tagUsage')
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tag_usage.set('gi', tag)
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tag_usage.set('occurs', str(count))
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return root
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def add_paragraph(self, paragraph):
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self.paragraphs.append(paragraph)
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def build_tei_etrees(documents):
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elements = []
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for document in documents:
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elements.append(document.as_xml())
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return elements
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def set_xml_attr(node, attribute, value):
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node.attrib['{http://www.w3.org/XML/1998/namespace}' + attribute] = value
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def parse_metaline(line):
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tokens = line.split('=', 1)
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key = tokens[0].replace('#', '').strip()
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if len(tokens) > 1 and not tokens[1].isspace():
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val = tokens[1].strip()
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else:
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val = None
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return (key, val)
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def is_metaline(line):
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if re.match('# .+ =.*', line):
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return True
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return False
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def construct_tei_documents(conllu_lines):
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documents = []
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doc_id = None
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document_paragraphs = []
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para_id = None
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para_buffer = []
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for line in conllu_lines:
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if is_metaline(line):
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key, val = parse_metaline(line)
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if key == 'newdoc id':
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if len(para_buffer) > 0:
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document_paragraphs.append(construct_paragraph(para_id, para_buffer))
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if len(document_paragraphs) > 0:
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documents.append(
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TeiDocument(doc_id, document_paragraphs))
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document_paragraphs = []
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doc_id = val
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elif key == 'newpar id':
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if len(para_buffer) > 0:
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document_paragraphs.append(construct_paragraph(para_id, para_buffer))
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para_buffer = []
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para_id = val
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elif key == 'sent_id':
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para_buffer.append(line)
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else:
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if not line.isspace():
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para_buffer.append(line)
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if len(para_buffer) > 0:
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document_paragraphs.append(construct_paragraph(para_id, para_buffer))
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if len(document_paragraphs) > 0:
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documents.append(
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TeiDocument(doc_id, document_paragraphs))
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return documents
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def construct_paragraph(para_id, conllu_lines):
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para = Paragraph(para_id)
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sent_id = None
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sent_buffer = []
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for line in conllu_lines:
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if is_metaline(line):
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key, val = parse_metaline(line)
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if key == 'sent_id':
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if len(sent_buffer) > 0:
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para.add_sentence(construct_sentence(sent_id, sent_buffer))
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sent_buffer = []
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sent_id = val
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elif not line.isspace():
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sent_buffer.append(line)
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if len(sent_buffer) > 0:
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para.add_sentence(construct_sentence(sent_id, sent_buffer))
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return para
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def construct_sentence(sent_id, lines):
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sentence = Sentence(sent_id)
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for line in lines:
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if line.startswith('#') or line.isspace():
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continue
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line = line.replace('\n', '')
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tokens = line.split('\t')
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word_id = tokens[0]
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token = tokens[1]
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lemma = tokens[2]
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upos = tokens[3]
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xpos = tokens[4]
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upos_other = tokens[5]
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depparse_link = tokens[6]
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depparse_link_name = tokens[7]
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misc = {el.split('=')[0]: el.split('=')[1] for el in tokens[9].split('|')} if tokens[9] != '_' else {}
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sentence.add_item(
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token,
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lemma,
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upos,
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upos_other,
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xpos,
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misc)
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sentence.add_link(
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depparse_link,
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depparse_link_name)
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if 'SRL' in misc:
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sentence.add_srl_link(
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depparse_link,
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misc['SRL'])
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return sentence
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def construct_tei_etrees(conllu_lines):
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documents = construct_tei_documents(conllu_lines)
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return build_tei_etrees(documents)
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def convert_file(input_file_name, output_file_name):
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input_file = open(input_file_name, 'r')
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root = construct_tei_etrees(input_file)[0]
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tree = etree.ElementTree(root)
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tree.write(output_file_name, encoding='UTF-8', pretty_print=True)
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input_file.close()
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tree = etree.ElementTree(root)
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tree.write(output_file_name, pretty_print=True, encoding='utf-8')
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Convert CoNNL-U to TEI.')
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parser.add_argument('files', nargs='+', help='CoNNL-U file')
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parser.add_argument('-o', '--out-file', dest='out', default=None, help='Write output to file instead of stdout.')
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parser.add_argument('-s', '--system', dest='system', default='jos', choices=['jos', 'ud'])
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args = parser.parse_args()
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if args.out:
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f_out = open(args.out, 'w')
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else:
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f_out = sys.stdout
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system = args.system
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for arg in args.files:
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filelist = glob(arg)
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for f in filelist:
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with open(f, 'r') as conllu_f:
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tei_etrees = construct_tei_etrees(conllu_f)
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for tei_etree in tei_etrees:
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f_out.write(etree.tostring(tei_etree, pretty_print=True, encoding='utf-8').decode())
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f_out.write('')
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