| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package opennlp.tools.cmdline.parser; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.regex.Pattern; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import opennlp.tools.cmdline.BasicCmdLineTool; |
| import opennlp.tools.cmdline.CLI; |
| import opennlp.tools.cmdline.CmdLineUtil; |
| import opennlp.tools.cmdline.PerformanceMonitor; |
| import opennlp.tools.cmdline.SystemInputStreamFactory; |
| import opennlp.tools.cmdline.tokenizer.TokenizerModelLoader; |
| import opennlp.tools.parser.AbstractBottomUpParser; |
| import opennlp.tools.parser.Parse; |
| import opennlp.tools.parser.Parser; |
| import opennlp.tools.parser.ParserFactory; |
| import opennlp.tools.parser.ParserModel; |
| import opennlp.tools.tokenize.Tokenizer; |
| import opennlp.tools.tokenize.TokenizerME; |
| import opennlp.tools.tokenize.TokenizerModel; |
| import opennlp.tools.tokenize.WhitespaceTokenizer; |
| import opennlp.tools.util.ObjectStream; |
| import opennlp.tools.util.PlainTextByLineStream; |
| import opennlp.tools.util.Span; |
| |
| public final class ParserTool extends BasicCmdLineTool { |
| |
| private static final Logger logger = LoggerFactory.getLogger(ParserTool.class); |
| |
| @Override |
| public String getShortDescription() { |
| return "Performs full syntactic parsing"; |
| } |
| |
| @Override |
| public String getHelp() { |
| return "Usage: " + CLI.CMD + " " + getName() + " [-bs n -ap n -k n -tk tok_model] model < sentences \n" |
| + "-bs n: Use a beam size of n.\n" |
| + "-ap f: Advance outcomes in with at least f% of the probability mass.\n" |
| + "-k n: Show the top n parses. This will also display their log-probabilities.\n" |
| + "-tk tok_model: Use the specified tokenizer model to tokenize the sentences. " |
| + "Defaults to a WhitespaceTokenizer."; |
| } |
| |
| private static final Pattern UNTOKENIZED_PAREN_PATTERN_1 = Pattern.compile("([^ ])([({)}])"); |
| private static final Pattern UNTOKENIZED_PAREN_PATTERN_2 = Pattern.compile("([({)}])([^ ])"); |
| |
| public static Parse[] parseLine(String line, Parser parser, int numParses) { |
| return parseLine( line, parser, WhitespaceTokenizer.INSTANCE, numParses ); |
| } |
| |
| public static Parse[] parseLine(String line, Parser parser, Tokenizer tokenizer, int numParses) { |
| // fix some parens patterns |
| line = UNTOKENIZED_PAREN_PATTERN_1.matcher(line).replaceAll("$1 $2"); |
| line = UNTOKENIZED_PAREN_PATTERN_2.matcher(line).replaceAll("$1 $2"); |
| |
| // tokenize |
| List<String> tokens = Arrays.asList( tokenizer.tokenize(line)); |
| String text = String.join(" ", tokens); |
| |
| Parse p = new Parse(text, new Span(0, text.length()), AbstractBottomUpParser.INC_NODE, 0, 0); |
| int start = 0; |
| int i = 0; |
| for (Iterator<String> ti = tokens.iterator(); ti.hasNext(); i++) { |
| String tok = ti.next(); |
| p.insert(new Parse(text, new Span(start, start + tok.length()), AbstractBottomUpParser.TOK_NODE, 0, i)); |
| start += tok.length() + 1; |
| } |
| Parse[] parses; |
| if (numParses == 1) { |
| parses = new Parse[]{parser.parse(p)}; |
| } else { |
| parses = parser.parse(p, numParses); |
| } |
| return parses; |
| } |
| |
| @Override |
| public void run(String[] args) { |
| |
| if (args.length < 1) { |
| logger.info(getHelp()); |
| } else { |
| |
| ParserModel model = new ParserModelLoader().load(new File(args[args.length - 1])); |
| |
| Integer beamSize = CmdLineUtil.getIntParameter("-bs", args); |
| if (beamSize == null) { |
| beamSize = AbstractBottomUpParser.defaultBeamSize; |
| } |
| |
| Integer numParses = CmdLineUtil.getIntParameter("-k", args); |
| boolean showTopK; |
| if (numParses == null) { |
| numParses = 1; |
| showTopK = false; |
| } else { |
| showTopK = true; |
| } |
| |
| Double advancePercentage = CmdLineUtil.getDoubleParameter("-ap", args); |
| |
| if (advancePercentage == null) { |
| advancePercentage = AbstractBottomUpParser.defaultAdvancePercentage; |
| } |
| |
| Tokenizer tokenizer = WhitespaceTokenizer.INSTANCE; |
| String tokenizerModelName = CmdLineUtil.getParameter( "-tk", args ); |
| if (tokenizerModelName != null ) { |
| TokenizerModel tokenizerModel = new TokenizerModelLoader().load(new File(tokenizerModelName)); |
| tokenizer = new TokenizerME( tokenizerModel ); |
| } |
| |
| Parser parser = ParserFactory.create(model, beamSize, advancePercentage); |
| |
| PerformanceMonitor perfMon = null; |
| try (ObjectStream<String> lineStream = new PlainTextByLineStream( |
| new SystemInputStreamFactory(), SystemInputStreamFactory.encoding())) { |
| |
| perfMon = new PerformanceMonitor("sent"); |
| perfMon.start(); |
| String line; |
| while ((line = lineStream.read()) != null) { |
| if (line.trim().length() == 0) { |
| logger.debug("empty line"); |
| } else { |
| Parse[] parses = parseLine(line, parser, tokenizer, numParses); |
| |
| for (int pi = 0, pn = parses.length; pi < pn; pi++) { |
| if (showTopK) { |
| logger.debug("{} {} ", pi, parses[pi].getProb()); |
| } |
| |
| parses[pi].show(); |
| |
| perfMon.incrementCounter(); |
| } |
| } |
| } |
| } catch (IOException e) { |
| CmdLineUtil.handleStdinIoError(e); |
| } |
| |
| perfMon.stopAndPrintFinalResult(); |
| } |
| } |
| } |