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python examples compatible with both Python 2 and 3

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This commit is contained in:
prasanth.kolachina
2016-09-19 08:32:08 +00:00
parent 8729339d26
commit ef33f1ab35
2 changed files with 703 additions and 595 deletions
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238
src/runtime/python/examples/gf_utils.py
View File

@@ -1,19 +1,44 @@
#!/usr/bin/env python
# Python 2 and 3 compatible
from __future__ import print_function
"""
"""
import argparse, re, string, sys, time;
from itertools import imap, count;
import argparse, codecs, re, string, sys, time;
try:
from itertools import imap as map;
from itertools import count;
except ImportError:
from itertools import count;
pass;
from operator import itemgetter;
import pgf;
def lexerI(sentence):
class Lexer(object):
def __init__(self, lang='None', grammar=None, gflang=None):
import translation_pipeline;
lexers = {'None': self.lexerI, \
'Eng': self.lexerI, \
'Chi': self.lexerChi, \
'Translator': translation_pipeline.pipeline_lexer, \
'Web': self.lexerWeb
};
if grammar:
self._pgf = grammar;
self._lang = gflang;
self.tokenize = lexers[lang];
return;
def lexerI(self, sentence):
#return sentence.decode('utf-8').rstrip(string.whitespace+string.punctuation).encode('utf-8');
return sentence.rstrip(string.whitespace+string.punctuation);
def lexerChi(sentence):
sentence = sentence.decode('utf-8');
def lexerChi(self, sentence):
#sentence = sentence.decode('utf-8');
tokens, idx, n = [], 0, len(sentence);
prev = True;
while idx < n:
@@ -33,18 +58,34 @@ def lexerChi(sentence):
prev = True;
tokens.append( sentence[idx] );
idx += 1;
return ' '.join(tokens).encode('utf-8');
return ' '.join(tokens);#.encode('utf-8');
def lexer(lang='translator'):
if lang[-3:] == 'Eng':
return lexerI;
elif lang[-3:] == 'Chi':
return lexerChi;
elif lang == 'translator':
import translation_pipeline;
return translation_pipeline.pipeline_lexer;
else:
return lexerI;
def lexerWeb(self, sentence):
tokensList = re.split('\s+?', sentence.strip());
for idx, token in enumerate(tokensList):
if not token[0].isupper():
continue;
lowertoken = tokensList[idx].lower();
count = 0;
for analysis in self._pgf.languages[self._lang].lookupMorpho(lowertoken):
count += 1;
tokensList[idx] = lowertoken if count else token;
for idx, token in enumerate(tokensList):
if token.find('-') == -1:
continue;
count = 0;
for analysis in self._pgf.languages[self._lang].lookupMorpho(token):
count += 1;
if count:
continue;
token = tokensList[idx].replace('-', '');
for analysis in self._pgf.languages[self._lang].lookupMorpho(token):
count += 1;
if count:
tokensList[idx] = token;
continue;
token = tokensList[idx].replace('-', ' ');
return ' '.join(tokensList);
def postprocessor(sentence):
if sentence == None:
@@ -87,30 +128,33 @@ def readMosesNbestFormat(inputStream):
yield currentHypothesisId, transBlock;
transBlock = [];
currentHypothesisId = int(fields[0]);
transBlock.append( (map(float, tuple([val.strip() for val in fields[3].split()])), fields[1].strip()) );
transBlock.append( (map(float, \
tuple([val.strip() for val in fields[3].split()])), \
fields[1].strip()) );
def printJohnsonRerankerFormat(gfparsesList, sentid=count(1)):
def printJohnsonRerankerFormat(gfparsesList, sentids=count(1)):
johnsonRepr = [];
parseHash = {};
for parse in sorted(gfparsesList, key=itemgetter(0)):
if not parseHash.has_key(parse[1]):
if parse[1] not in parseHash:
johnsonRepr.append( str(-1*parse[0]) );
johnsonRepr.append( str(parse[1]) );
parseHash.setdefault(parse[1], []).append(parse[0]);
curid = sentid.next();
curid = next(sentids);
if len(gfparsesList):
johnsonRepr.insert(0, '%d %d' %(len(parseHash.values()), curid));
duplicateInstances = len(filter(lambda X: len(parseHash[X]) > 1, parseHash.keys()));
#if duplicateInstances: print >>sys.stderr, "%d duplicate parses found in K-best parsing" %(duplicateInstances);
duplicateInstances = len(list(filter(lambda X: len(parseHash[X]) > 1, \
parseHash.keys())));
return '\n'.join(johnsonRepr)+'\n';
def printMosesNbestFormat(hypothesisList, sentid=count(1)):
def printMosesNbestFormat(hypothesisList, sentids=count(1)):
mosesRepr = [];
sid = sentid.next();
sid = next(sentids);
for hypScores, hypStr in hypothesisList:
if not hasattr(hypScores, '__iter__'):
hypScores = (hypScores, );
mosesRepr.append("%d ||| %s ||| NULL ||| %s" %(sid, hypStr, ' '.join(['%.6f'%score for score in hypScores])));
mosesRepr.append("%d ||| %s ||| NULL ||| %s" \
%(sid, hypStr, ' '.join('%.6f'%score for score in hypScores)) );
return '\n'.join(mosesRepr);
def getKLinearizations(grammar, tgtlanguage, abstractParsesList, K=10):
@@ -122,105 +166,136 @@ def getKLinearizations(grammar, tgtlanguage, abstractParsesList, K=10):
kBestTrans.append( ((parseprob,), postprocessor(linstring)) );
yield kBestTrans;
def getKBestParses(grammar, language, K, serializable=False, sentid=count(1), max_length=50):
def getKBestParses(grammar, language, K, callbacks=[], \
serializable=False, sentids=count(1), max_length=50):
parser = grammar.languages[language].parse;
import translation_pipeline
import translation_pipeline;
callbacks_PN = translation_pipeline.parseNames;
callbacks_Symb = translation_pipeline.parseUnknown;
def worker(sentence):
sentence = sentence.strip();
curid = sentid.next();
curid = next(sentids);
tstart = time.time();
kBestParses = [];
parseScores = {};
if len(sentence.split()) > max_length:
tend, err = time.time(), "Sentence too long (%d tokens). Might potentially run out of memory" %(len(sentence.split()));
print >>sys.stderr, '%d\t%.4f\t%s' %(curid, tend-tstart, err);
return tend-tstart, kBestParses; # temporary hack to make sure parser does not get killed for very long sentences;
# temporary hack to make sure parser does not get
# killed for very long sentences;
tend, err = time.time(), \
"Sentence too long (%d tokens). Might potentially run out of memory" \
%(len(sentence.split()));
print('%d\t%.4f\t%s' %(curid, tend-tstart, err), file=sys.stderr);
return tend-tstart, kBestParses;
# with modified API for callbacks, each callback function has to
# be freshly created for each sentence; otherwise, they do not
# work.
try:
callbacks = [('PN', translation_pipeline.parseNames(grammar, args.srclang, sentence)), ('Symb', translation_pipeline.parseUnknown(grammar, args.srclang, sentence))]
for parseidx, parse in enumerate( parser(sentence, heuristics=0, callbacks=callbacks) ):
callbacks = [('PN', callbacks_PN(grammar, language, sentence)),\
('Symb', callbacks_Symb(grammar, language, sentence))];
for parseidx, parse in enumerate(parser(sentence, \
heuristics=0, callbacks=callbacks)):
parseScores[parse[0]] = True;
kBestParses.append( (parse[0], str(parse[1]) if serializable else parse[1]) );
if parseidx == K-1: break;
#if len(parseScores) >= K: break;
kBestParses.append((parse[0], str(parse[1]) if serializable \
else parse[1]));
if parseidx == K-1:
break;
tend = time.time();
print >>sys.stderr, '%d\t%.4f' %(curid, tend-tstart);
print('%d\t%.4f' %(curid, tend-tstart), file=sys.stderr);
return tend-tstart, kBestParses;
except pgf.ParseError, err:
except pgf.ParseError as err:
tend = time.time();
print >>sys.stderr, '%d\t%.4f\t%s' %(curid, tend-tstart, err);
print('%d\t%.4f\t%s' %(curid, tend-tstart, err), file=sys.stderr);
return tend-tstart, kBestParses;
except UnicodeEncodeError, err:
except UnicodeEncodeError as err:
tend = time.time();
print >>sys.stderr, '%d\t%.4f\t%s' %(curid, tend-tstart, err);
print('%d\t%.4f\t%s' %(curid, tend-tstart, err), file=sys.stderr);
return tend-tstart, kBestParses;
return worker;
def pgf_parse(args):
grammar = pgf.readPGF(args.pgfgrammar);
import translation_pipeline;
preprocessor = lexer();
inputSet = translation_pipeline.web_lexer(grammar, args.srclang, imap(preprocessor, args.inputstream) );
outputPrinter = lambda X: "%f\t%s" %(X[0], str(X[1])); #operator.itemgetter(1);
preprocessor = Lexer().tokenize;
#if sys.version_info < (3, 0):
# args.inputstream = codecs.getreader('utf-8')(args.inputstream);
inputSet = map(preprocessor, args.inputstream);
web_preprocessor = Lexer('Web', grammar, args.srclang).tokenize;
inputSet = map(web_preprocessor, inputSet);
outputPrinter = lambda X: "%f\t%s" %(X[0], str(X[1]));
parser = getKBestParses(grammar, args.srclang, 1);
sentidx = 0;
for time, parsesBlock in imap(parser, inputSet):
for time, parsesBlock in map(parser, inputSet):
sentidx += 1;
print >>args.outputstream, "%d\t%f\t%s" %(sentidx, time, str(outputPrinter(parsesBlock[0])) if len(parsesBlock) else '');
print("%d\t%f\t%s" %(sentidx, time, \
str(outputPrinter(parsesBlock[0])) if len(parsesBlock) else ''), \
file=args.outputstream);
return;
def pgf_kparse(args):
grammar = pgf.readPGF(args.pgfgrammar);
import translation_pipeline;
preprocessor = lexer();
inputSet = translation_pipeline.web_lexer(grammar, args.srclang, imap(preprocessor, args.inputstream) );
preprocessor = Lexer().tokenize;
#if sys.version_info < (3, 0):
# args.inputstream = codecs.getreader('utf-8')(args.inputstream);
inputSet = map(preprocessor, args.inputstream);
web_preprocessor = Lexer('Web', grammar, args.srclang).tokenize;
inputSet = map(web_preprocessor, inputSet);
outputPrinter = printJohnsonRerankerFormat;
parser = getKBestParses(grammar, args.srclang, args.K);
sentidx = 0;
for time, parsesBlock in imap(parser, inputSet):
for time, parsesBlock in map(parser, inputSet):
sentidx += 1;
strParses = str(outputPrinter(parsesBlock));
if not (strParses == '\n'):
print >>args.outputstream, strParses;
print(strParses, file=args.outputstream);
return;
def pgf_linearize(args):
grammar = pgf.readPGF(args.pgfgrammar);
outputPrinter = postprocessor;
inputSet = [];
for line in args.inputstream:
def parse_line(line):
try:
sentid, parsetime, parserepr = line.strip('\n').split('\t', 2);
except ValueError:
print line.strip();
parseprob, abstree = parserepr.split('\t') if parserepr.strip() else (0, '');
inputSet.append( (int(sentid), float(parsetime), float(parseprob), pgf.readExpr(abstree) if abstree else None) );
print("Line not in proper format: %s" %(line), file=stderr);
parseprob, abstree = parserepr.split('\t') if parserepr.strip() \
else (0, '');
return ((int(sentid), float(parsetime), float(parseprob), \
pgf.readExpr(abstree) if abstree else None));
#if sys.version_info < (3, 0):
# args.inputstream = codecs.getreader('utf-8')(args.inputstream);
inputSet = map(parse_line, (line for line in args.inputstream));
outputPrinter = postprocessor;
linearizer = grammar.languages[args.tgtlang].linearize;
for sentid, _, _, abstree in inputSet:
if abstree:
print >>args.outputstream, str(outputPrinter(linearizer(abstree)));
print(str(outputPrinter(linearizer(abstree))), \
file=args.outputstream);
else:
print >>args.outputstream, "";
print("", file=args.outputstream);
return;
def pgf_klinearize(args):
grammar = pgf.readPGF(args.pgfgrammar);
#if sys.version_info < (3, 0):
# args.inputstream = codecs.getreader('utf-8')(args.inputstream);
inputSet = [(sentid, parsesBlock) \
for sentid, parsesBlock in readJohnsonRerankerTrees(args.inputstream)];
outputPrinter = printMosesNbestFormat;
inputSet = [(sentid, parsesBlock) for sentid, parsesBlock in readJohnsonRerankerTrees(args.inputstream)];
sentIdsList = imap(itemgetter(0), inputSet);
sentIdsList = map(itemgetter(0), inputSet);
parsesBlocks = map(itemgetter(1), inputSet);
for transBlock in getKLinearizations(grammar, args.tgtlang, parsesBlocks, args.K):
strTrans = str(outputPrinter(transBlock, sentIdsList));
if strTrans:
print >>args.outputstream, strTrans;
print(strTrans, file=args.outputstream);
return;
def cmdLineParser():
argparser = argparse.ArgumentParser(prog='gf_utils.py', description='Examples for carrying out (K-best) parsing, translation and linearization using GF C runtime.');
argparser = argparse.ArgumentParser(prog='gf_utils.py', \
description='Examples for carrying out (K-best) parsing, \
translation and linearization using GF C runtime.');
subparsers = argparser.add_subparsers();
parser = subparsers.add_parser('parse', help='GF parsing of sentences');
@@ -235,9 +310,11 @@ def cmdLineParser():
help='Start symbol in the grammar');
parser.add_argument('-s', '--src-lang', dest='srclang', required=True, \
help='Source language');
parser.add_argument('-i', '--input', dest='inputstream', nargs='?', type=argparse.FileType(mode='r'), default=sys.stdin, \
parser.add_argument('-i', '--input', dest='inputstream', nargs='?', \
type=argparse.FileType(mode='r'), default=sys.stdin, \
help='Input file') ;
parser.add_argument('-o', '--output', dest='outputstream', nargs='?', type=argparse.FileType(mode='w'), default=sys.stdout, \
parser.add_argument('-o', '--output', dest='outputstream', nargs='?', \
type=argparse.FileType(mode='w'), default=sys.stdout, \
help='Output file');
kparser.set_defaults(func=pgf_kparse);
@@ -247,11 +324,14 @@ def cmdLineParser():
help='Start symbol in the grammar');
kparser.add_argument('-s', '--src-lang', dest='srclang', required=True, \
help='Source language');
kparser.add_argument('-K', dest='K', required=True, type=int, \
kparser.add_argument('-K', dest='K', required=True, \
type=int, \
help='K value for multiple parses');
kparser.add_argument('-i', '--input', dest='inputstream', nargs='?', type=argparse.FileType(mode='r'), default=sys.stdin, \
kparser.add_argument('-i', '--input', dest='inputstream', nargs='?', \
type=argparse.FileType(mode='r'), default=sys.stdin, \
help='Input file');
kparser.add_argument('-o', '--output', dest='outputstream', nargs='?', type=argparse.FileType(mode='w'), default=sys.stdout, \
kparser.add_argument('-o', '--output', dest='outputstream', nargs='?', \
type=argparse.FileType(mode='w'), default=sys.stdout, \
help='Output file');
linearizer.set_defaults(func=pgf_linearize);
@@ -259,9 +339,11 @@ def cmdLineParser():
help='PGF Grammar file');
linearizer.add_argument('-t', '--tgt-lang', dest='tgtlang', required=True, \
help='Target language');
linearizer.add_argument('-i', '--input', dest='inputstream', nargs='?', type=argparse.FileType(mode='r'), default=sys.stdin, \
linearizer.add_argument('-i', '--input', dest='inputstream', nargs='?', \
type=argparse.FileType(mode='r'), default=sys.stdin, \
help='Input file');
linearizer.add_argument('-o', '--output', dest='outputstream', nargs='?', type=argparse.FileType(mode='w'), default=sys.stdout, \
linearizer.add_argument('-o', '--output', dest='outputstream', nargs='?', \
type=argparse.FileType(mode='w'), default=sys.stdout, \
help='Output file');
klinearizer.set_defaults(func=pgf_klinearize);
@@ -269,15 +351,19 @@ def cmdLineParser():
help='PGF Grammar file');
klinearizer.add_argument('-t', '--tgt-lang', dest='tgtlang', required=True, \
help='Target language');
klinearizer.add_argument('-K', dest='K', required=True, type=int, \
klinearizer.add_argument('-K', '--kbest', dest='K', required=True, \
type=int, \
help='K value for multiple linearizations');
klinearizer.add_argument('-i', '--input', dest='inputstream', nargs='?', type=argparse.FileType(mode='r'), default=sys.stdin, \
klinearizer.add_argument('-i', '--input', dest='inputstream', nargs='?', \
type=argparse.FileType(mode='r'), default=sys.stdin, \
help='Input file');
klinearizer.add_argument('-o', '--output', dest='outputstream', nargs='?', type=argparse.FileType(mode='w'), default=sys.stdout, \
klinearizer.add_argument('-o', '--output', dest='outputstream', nargs='?', \
type=argparse.FileType(mode='w'), default=sys.stdout, \
help='Output file');
return argparser;
if __name__ == '__main__':
args = cmdLineParser().parse_args(sys.argv[1:]);
args.func(args);

166
src/runtime/python/examples/translation_pipeline.py
View File

@@ -1,6 +1,18 @@
#!/usr/bin/env python
# Python 2 and 3 compatible
from __future__ import print_function
"""
"""
import argparse, codecs, copy, itertools, logging, math, operator, os, os.path, re, string, sys, time;
try:
from itertools import imap as map;
from itertools import ifilter as filter;
except ImportError:
pass;
import xml.etree.ElementTree as etree;
import pgf;
@@ -29,13 +41,17 @@ def readTranslationPipelineOptions(propsfile, default_namespace):
continue;
key, value = line.strip().split('=', 1);
key, value = key.strip(), value.strip();
if key == 'srclang': default_namespace.srclang = value;
elif key == 'tgtlangs': default_namespace.tgtlangs = [val.strip() for val in ','.split(value)];
elif key == 'input': default_namespace.input = value;
elif key == 'format': default_namespace.format = value;
elif key == 'exp_directory': default_namespace.exp_directory = value;
if key == 'srclang':
default_namespace.srclang = value;
elif key == 'tgtlangs':
default_namespace.tgtlangs = [val.strip() for val in ','.split(value)];
elif key == 'input':
default_namespace.input = value;
elif key == 'format':
default_namespace.format = value;
elif key == 'exp_directory':
default_namespace.exp_directory = value;
else:
#print >>sys.stderr, "Unknown option-%s found in props file. Ignoring and proceeding." %(key);
logging.warning("Unknown option-%s found in props file. Ignoring and proceeding." %(key));
continue;
return default_namespace;
@@ -89,34 +105,6 @@ def pipeline_lexer(sentence):
tokens = tokens[idx:];
return ' '.join(tokens);
def web_lexer(grammar, lang, sentences):
for instance in sentences:
tokensList = re.split('\s+?', instance.strip());
for idx, token in enumerate(tokensList):
if not token[0].isupper():
continue;
lowertoken = tokensList[idx].lower();
count = 0;
for analysis in grammar.languages[lang].lookupMorpho(lowertoken):
count += 1;
tokensList[idx] = lowertoken if count else token;
for idx, token in enumerate(tokensList):
if token.find('-') == -1:
continue;
count = 0;
for analysis in grammar.languages[lang].lookupMorpho(token):
count += 1;
if count:
continue;
token = tokensList[idx].replace('-', '');
for analysis in grammar.languages[lang].lookupMorpho(token):
count += 1;
if count:
tokensList[idx] = token;
continue;
token = tokensList[idx].replace('-', ' ');
yield ' '.join(tokensList);
def clean_gfstrings(sentence):
absFuncName = re.compile('\[[^]]+?\]');
untranslatedEntries = {};
@@ -126,7 +114,9 @@ def clean_gfstrings(sentence):
while untranslatedEntries[entry] > 1:
sentence = sentence.replace(entry, '', 1);
untranslatedEntries[entry] -= 1;
sentence = sentence.replace(entry, ' '.join(entry[1:-1].split('_')[:-1]) if entry.find('_') != -1 else '');
sentence = sentence.replace(entry, \
' '.join(entry[1:-1].split('_')[:-1]) if entry.find('_') != -1 \
else '');
return ' '.join( sentence.split() );
def parseNames(grammar, language, sentence):
@@ -145,7 +135,8 @@ def parseNames(grammar, language, sentence):
moving_start += 1;
possible_name = sentence[start:end].strip();
if possible_name:
if language.endswith('Eng') and (possible_name == "I" or possible_name == "I'm"):
if language.endswith('Eng') and \
(possible_name == "I" or possible_name == "I'm"):
return None;
elif language.endswith('Eng') and possible_name.endswith("'s"):
end_idx = possible_name.rfind("'s");
@@ -161,9 +152,11 @@ def parseNames(grammar, language, sentence):
if category == "PN":
expr, prob = pgf.Expr(analysis[0], []), analysis[-1];
elif category == "Weekday":
expr, prob = pgf.Expr("weekdayPN", [pgf.Expr(analysis[0], [])]), analysis[-1];
expr, prob = pgf.Expr("weekdayPN", \
[pgf.Expr(analysis[0], [])]), analysis[-1];
elif category == "Month":
expr, prob = pgf.Expr("monthPN", [pgf.Expr(analysis[0], [])]), analysis[-1];
expr, prob = pgf.Expr("monthPN", \
[pgf.Expr(analysis[0], [])]), analysis[-1];
elif category == "Language":
return None;
# generic named entity
@@ -178,7 +171,9 @@ def parseNames(grammar, language, sentence):
def parseUnknown(grammar, language, sentence):
def callback(lin_idx, start):
moving_start, end, eot = start, len(sentence), True;
isNewToken = (moving_start == 0) or (moving_start > 1 and sentence[moving_start-1].isspace()) # -- added to deal with segmentation errors like may => ma_N + Symb y
# -- added to deal with segmentation errors like may => ma_N + Symb y
isNewToken = (moving_start == 0) or \
(moving_start > 1 and sentence[moving_start-1].isspace())
if moving_start < end and (not sentence[moving_start].isupper()):
while moving_start < end:
if sentence[moving_start] in string.whitespace:
@@ -196,8 +191,8 @@ def parseUnknown(grammar, language, sentence):
return None;
return callback;
def parseTester(grammar, language):
def callback(lin_idx, sentence, start):
def parseTester(grammar, language, sentence):
def callback(lin_idx, start):
if start < len(sentence):
return (pgf.Expr(sentence[start]), 0, start+1);
return None;
@@ -205,39 +200,49 @@ def parseTester(grammar, language):
def translateWordsAsChunks(grammar, language, tgtlanguages, word):
parser = grammar.languages[language].parse;
linearizersList = dict((lang, grammar.languages[lang].linearize) for lang in tgtlanguages);
linearizersList = dict((lang, grammar.languages[lang].linearize) \
for lang in tgtlanguages);
translations = [];
try:
for parseidx, parse in enumerate( parser(word) ):
for lang in tgtlanguages:
trans = linearizersList[lang](parse[1]);
translations.append(( lang, gf_utils.postprocessor(trans.strip() if trans else '') ) );
translations.append((lang, gf_utils.postprocessor(\
trans.strip() if trans else '')));
break;
except pgf.ParseError, err:
except pgf.ParseError as err:
return [];
return translations;
def translateWord(grammar, language, tgtlanguages, word):
possible_translations = translateWordsAsChunks(grammar, language, tgtlanguages, word);
possible_translations = translateWordsAsChunks(grammar, language, \
tgtlanguages, word);
if len(possible_translations):
return possible_translations;
lowerword = word.lower();
try:
partialExprList = grammar.languages[language].parse(word, cat='Chunk');
for expr in partialExprList:
return [(lang, gf_utils.gf_postprocessor( grammar.languages[lang].linearize(expr[1]) )) for lang in tgtlanguages];
return [(lang, gf_utils.gf_postprocessor(\
grammar.languages[lang].linearize(expr[1]))) \
for lang in tgtlanguages];
except pgf.ParseError:
morphAnalysis = grammar.languages[language].lookupMorpho(word) + grammar.languages[language].lookupMorpho(lowerword);
morphAnalysis = grammar.languages[language].lookupMorpho(word) +\
grammar.languages[language].lookupMorpho(lowerword);
for morph in morphAnalysis:
countPositiveLanguages = filter(None, [grammar.languages[lang].hasLinearization(morph[0]) for lang in tgtlanguages]);
countPositiveLanguages = list(filter(None, \
[grammar.languages[lang].hasLinearization(morph[0]) \
for lang in tgtlanguages]));
if len(countPositiveLanguages) > 0.5*len(tgtlanguages):
return [(lang, gf_utils.gf_postprocessor( grammar.languages[lang].linearize( pgf.readExpr(morph[0]) ) )) for lang in tgtlanguages];
return [(lang, \
gf_utils.gf_postprocessor(grammar.languages[lang].linearize(pgf.readExpr(morph[0])))) \
for lang in tgtlanguages];
return [(lang, word) for lang in tgtlanguages];
def translationByLookup(grammar, language, tgtlanguages, sentence):
parser = grammar.languages[language].parse;
linearizersList = dict([(lang, grammar.languages[lang].linearize) for lang in tgtlanguages]);
linearizersList = dict([(lang, grammar.languages[lang].linearize) \
for lang in tgtlanguages]);
queue = [sentence.strip().split()];
transChunks = {};
while len(queue):
@@ -245,8 +250,10 @@ def translationByLookup(grammar, language, tgtlanguages, sentence):
if not len(head):
pass;
elif len(head) == 1 and head[0].strip():
for lang, wordchoice in translateWord(grammar, language, tgtlanguages, head[0]):
transChunks.setdefault(lang, []).append( gf_utils.postprocessor(wordchoice) );
for lang, wordchoice in translateWord(grammar, language, \
tgtlanguages, head[0]):
transChunks.setdefault(lang, []).append(\
gf_utils.postprocessor(wordchoice));
else:
try:
for parseidx, parse in enumerate(parser(' '.join(head))):
@@ -254,9 +261,10 @@ def translationByLookup(grammar, language, tgtlanguages, sentence):
if linearizersList[lang](parse[1]) == None:
transChunks.setdefault(lang, []).append(' ');
else:
transChunks.setdefault(lang, []).append( gf_utils.postprocessor( linearizersList[lang](parse[1]).strip() ) );
transChunks.setdefault(lang, []).append(\
gf_utils.postprocessor(linearizersList[lang](parse[1]).strip()));
break;
except pgf.ParseError, err:
except pgf.ParseError as err:
#unseenToken = re.findall('"[^"]+?"', err.message)[0][1:-1];
unseenToken = err.message.strip().split()[-1][1:-1];
idx = head.index(unseenToken);
@@ -270,9 +278,8 @@ def translationByLookup(grammar, language, tgtlanguages, sentence):
def pipelineParsing(grammar, language, sentences, K=20):
#buf = [sent for sent in sentences];
buf, sentences = itertools.tee(sentences, 2);
sentences = itertools.imap(gf_utils.lexer(lang=language), sentences);
parser = gf_utils.getKBestParses(grammar, language, K);
for sent, (time, parsesBlock) in itertools.izip(buf, itertools.imap(parser, sentences)):
for sent, (time, parsesBlock) in zip(buf, map(parser, sentences)):
yield (sent, parsesBlock);
def translation_pipeline(props):
@@ -293,14 +300,18 @@ def translation_pipeline(props):
grammar = pgf.readPGF(props.pgffile);
sourceLanguage = filter(None, [lang if lang[-3:] == props.srclang else '' for lang in grammar.languages.keys()])[0];
sourceLanguage = filter(None, [lang if lang[-3:] == props.srclang else '' for lang in grammar.languages.keys()]);
sourceLanguage = list(sourceLanguage)[0];
logging.info("Translating from %s" %(sourceLanguage));
if len(props.tgtlangs):
target_langs = props.tgtlangs;
else:
target_langs = filter(None, [lang[-3:] if lang != sourceLanguage else '' for lang in grammar.languages.keys()]);
targetLanguages = filter(None, [lang if lang[-3:] in target_langs else '' for lang in grammar.languages.keys()]);
target_langs = filter(None, [lang[-3:] if lang != sourceLanguage \
else '' for lang in grammar.languages.keys()]);
targetLanguages = filter(None, [lang if lang[-3:] in target_langs \
else '' for lang in grammar.languages.keys()]);
targetLanguages = list(targetLanguages);
logging.info("Translating into the following languages: %s" %(','.join(targetLanguages)));
K = props.bestK if props.bestK != 1 else 20; # by default we look for 20 best parses
@@ -310,7 +321,6 @@ def translation_pipeline(props):
logging.info( "Input file name missing. Reading input from stdin." );
inputStream = sys.stdin;
outputPrefix = os.getpid();
else:
inputStream = codecs.open(props.input, 'r');
outputPrefix = os.path.splitext( os.path.split(props.input)[1] )[0];
@@ -327,7 +337,8 @@ def translation_pipeline(props):
reader = lambda X: X;
skeletonDoc = lambda X, lang: list();
addItem = lambda X, y: list.append(X, y);
writer = lambda X: ('\n'.join(X) if bestK == 1 else '\n'.join(map(gf_utils.printMosesNbestFormat, X)));
writer = lambda X: ('\n'.join(X) if bestK == 1 else \
'\n'.join(map(gf_utils.printMosesNbestFormat, X)));
translationBlocks = {};
for tgtlang in targetLanguages+['abstract']:
@@ -338,17 +349,21 @@ def translation_pipeline(props):
logging.info( "Parsing text in %s" %(sourceLanguage) );
# 1. Get Abstract Trees for sentences in source language.
tokenized_sentences = itertools.imap(preprocessor, reader(inputDoc));
absParses = [parsesBlock for parsesBlock in pipelineParsing(grammar, sourceLanguage, web_lexer(grammar, sourceLanguage, tokenized_sentences), K)];
tokenized_sentences = map(preprocessor, reader(inputDoc));
web_lexer = gf_utils.Lexer('Web', grammar, sourceLanguage).tokenize;
absParses = [parsesBlock for parsesBlock in \
pipelineParsing(grammar, sourceLanguage, \
map(web_lexer, tokenized_sentences), K)];
logging.info( "Linearizing into %s" %(','.join(targetLanguages)) );
# 2. Linearize in all target Languages
for idx, parsesBlock in enumerate( itertools.imap(operator.itemgetter(1), absParses) ):
for idx, parsesBlock in enumerate( map(operator.itemgetter(1), absParses) ):
translationBuffer = {};
if not len(parsesBlock):
# failed to parse;
# translate using lookup
for tgtlang, translation in translationByLookup(grammar, sourceLanguage, targetLanguages, absParses[idx][0]):
for tgtlang, translation in translationByLookup(grammar, sourceLanguage,\
targetLanguages, absParses[idx][0]):
if bestK == 1:
addItem(translationBlocks[tgtlang], postprocessor(translation));
else:
@@ -357,7 +372,8 @@ def translation_pipeline(props):
else:
bestTranslationIdx = 0;
for tgtlang in targetLanguages:
translationBuffer[tgtlang] = gf_utils.getKLinearizations(grammar, tgtlang, [parsesBlock], K=bestK).next();
translationBuffer[tgtlang] = next(gf_utils.getKLinearizations(grammar, \
tgtlang, [parsesBlock], K=bestK));
if bestK == 1:
for tidx, translation in enumerate(translationBuffer[tgtlang]):
if postprocessor(translation[1]).strip():
@@ -366,19 +382,25 @@ def translation_pipeline(props):
break;
for tgtlang in targetLanguages:
if bestK == 1:
translation = postprocessor(translationBuffer[tgtlang][bestTranslationIdx][1]) if len(translationBuffer[tgtlang]) > bestTranslationIdx else ((None,), '');
translation = postprocessor(translationBuffer[tgtlang][bestTranslationIdx][1]) \
if len(translationBuffer[tgtlang]) > bestTranslationIdx \
else ((None,), '');
abstract = str(parsesBlock[bestTranslationIdx][1]);
else:
translation = translationBuffer[tgtlang] if len(translationBuffer[tgtlang]) else [];
translation = translationBuffer[tgtlang] \
if len(translationBuffer[tgtlang]) \
else [];
abstract = parsesBlock;
addItem(translationBlocks[tgtlang], translation);
addItem(translationBlocks['abstract'], abstract);
for tgtlang in targetLanguages+['abstract']:
outputFile = os.path.join( props.exp_directory, '%s-%s.%s' %(outputPrefix, tgtlang[-3:] if tgtlang!='abstract' else 'abstract', props.format) );
outputFile = os.path.join( props.exp_directory, '%s-%s.%s' %(outputPrefix, tgtlang[-3:] \
if tgtlang!='abstract' \
else 'abstract', props.format) );
logging.info( "Writing translations for %s to %s" %(tgtlang, outputFile) );
with codecs.open(outputFile, 'w') as outputStream:
print >>outputStream, writer(translationBlocks[tgtlang]);
with codecs.open(outputFile, 'w', encoding='utf-8') as outputStream:
print(writer(translationBlocks[tgtlang]), file=outputStream);
return;
def cmdLineParser():