Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
1 changed file
with
128 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,128 @@ | ||
#!/usr/bin/sqlite3 | ||
import os | ||
import os.path | ||
import sqlite3 | ||
from argparse import ArgumentParser | ||
import utils | ||
from myconfig import MyConfig | ||
|
||
|
||
CREATE_BIGRAM_DDL = ''' | ||
CREATE TABLE bigram ( | ||
prefix TEXT NOT NULL, | ||
postfix TEXT NOT NULL, | ||
freq INTEGER NOT NULL | ||
); | ||
''' | ||
|
||
SELECT_ALL_NGRAM_DML = ''' | ||
SELECT words, freq FROM ngram; | ||
''' | ||
|
||
DELETE_BIGRAM_DML = ''' | ||
DELETE FROM bigram; | ||
''' | ||
|
||
INSERT_BIGRAM_DML = ''' | ||
INSERT INTO bigram(prefix, postfix, freq) VALUES (?, ?, ?); | ||
''' | ||
|
||
|
||
config = MyConfig() | ||
|
||
#change cwd to the word recognizer directory | ||
words_dir = config.getWordRecognizerDir() | ||
os.chdir(words_dir) | ||
#chdir done | ||
|
||
|
||
def handleError(error): | ||
sys.exit(error) | ||
|
||
|
||
def createBigramSqlite(indexpath, workdir): | ||
print(indexpath, workdir, 'create bigram') | ||
length = 2 | ||
|
||
filename = config.getNgramFileName(length) | ||
filepath = workdir + os.sep + filename | ||
print(filepath) | ||
|
||
if os.access(filepath, os.F_OK): | ||
os.unlink(filepath) | ||
|
||
conn = sqlite3.connect(filepath) | ||
cur = conn.cursor() | ||
cur.execute(CREATE_BIGRAM_DDL) | ||
conn.commit() | ||
if conn: | ||
conn.close() | ||
|
||
|
||
def handleBigramPass(indexpath, workdir): | ||
print(indexpath, workdir, 'bigram pass') | ||
length = 2 | ||
|
||
sep = config.getWordSep() | ||
|
||
filename = config.getNgramFileName(length) | ||
filepath = workdir + os.sep + filename | ||
|
||
#begin processing | ||
conn = sqlite3.connect(filepath) | ||
cur = conn.cursor() | ||
|
||
cur.execute(DELETE_BIGRAM_DML) | ||
rows = cur.execute(SELECT_ALL_NGRAM_DML).fetchall() | ||
for row in rows: | ||
(words_str, freq) = row | ||
|
||
words = words_str.strip(sep).split(sep, 1) | ||
assert len(words) == length | ||
|
||
(prefix, postfix) = words | ||
|
||
cur.execute(INSERT_BIGRAM_DML, (prefix, postfix, freq)) | ||
#print(prefix, postfix, freq) | ||
|
||
conn.commit() | ||
|
||
if conn: | ||
conn.close() | ||
|
||
|
||
def handleOneIndex(indexpath, subdir, indexname, fast): | ||
print(indexpath, subdir, indexname) | ||
|
||
indexstatuspath = indexpath + config.getStatusPostfix() | ||
indexstatus = utils.load_status(indexstatuspath) | ||
if not utils.check_epoch(indexstatus, 'PartialWord'): | ||
raise utils.EpochError('Please do partial word first.\n') | ||
if utils.check_epoch(indexstatus, 'PopulateBigram'): | ||
return | ||
|
||
workdir = config.getWordRecognizerDir() + os.sep + \ | ||
subdir + os.sep + indexname | ||
print(workdir) | ||
|
||
createBigramSqlite(indexpath, workdir) | ||
handleBigramPass(indexpath, workdir) | ||
|
||
#sign epoch | ||
utils.sign_epoch(indexstatus, 'PopulateBigram') | ||
utils.store_status(indexstatuspath, indexstatus) | ||
|
||
|
||
def walkThroughIndex(path): | ||
for root, dirs, files in os.walk(path, topdown=True, onerror=handleError): | ||
for onefile in files: | ||
filepath = os.path.join(root, onefile) | ||
indexpostfix = config.getIndexPostfix() | ||
if onefile.endswith(indexpostfix): | ||
subdir = os.path.relpath(root, path) | ||
indexname = onefile[:-len(indexpostfix)] | ||
handleOneIndex(filepath, subdir, indexname) | ||
elif onefile.endswith(config.getStatusPostfix()): | ||
pass | ||
else: | ||
print('Unexpected file:' + filepath) |