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* Copyright (c) 2009 Kov Chai <tchaikov@gmail.com>
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* The contents of this file are subject to the terms of either the GNU Lesser
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* General Public License Version 2.1 only ("LGPL") or the Common Development and
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* Distribution License ("CDDL")(collectively, the "License"). You may not use this
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* file except in compliance with the License. You can obtain a copy of the CDDL at
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* http://www.opensource.org/licenses/cddl1.php and a copy of the LGPLv2.1 at
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* http://www.opensource.org/licenses/lgpl-license.php. See the License for the
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* specific language governing permissions and limitations under the License. When
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* distributing the software, include this License Header Notice in each file and
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* include the full text of the License in the License file as well as the
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* NOTICE PURSUANT TO SECTION 9 OF THE COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
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* For Covered Software in this distribution, this License shall be governed by the
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* laws of the State of California (excluding conflict-of-law provisions).
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* Any litigation relating to this License shall be subject to the jurisdiction of
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* the Federal Courts of the Northern District of California and the state courts
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* of the State of California, with venue lying in Santa Clara County, California.
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* If you wish your version of this file to be governed by only the CDDL or only
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* the LGPL Version 2.1, indicate your decision by adding "[Contributor]" elects to
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* include this software in this distribution under the [CDDL or LGPL Version 2.1]
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* license." If you don't indicate a single choice of license, a recipient has the
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* option to distribute your version of this file under either the CDDL or the LGPL
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* Version 2.1, or to extend the choice of license to its licensees as provided
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* above. However, if you add LGPL Version 2.1 code and therefore, elected the LGPL
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* Version 2 license, then the option applies only if the new code is made subject
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* to such option by the copyright holder.
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void ShowUsage(const char* progname)
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printf(" %s [-v] [-e endian] [-i <input-lm-file>] [-o <output-lm-file>]\n", progname);
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printf("Description:\n");
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printf(" %s converts the binary language model files used by SunPinyin from big-endian to small-endian or vice versa.\n", progname);
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printf("\nOptions:\n");
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printf(" -v # print out the endian-ness of <input-lm-file>.\n");
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printf(" -e endian # the endian-ness of <output-lm-file>. It can be either \"be\" or \"le\".\n");
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printf(" -i <input-lm-file> # input file name, e.g. lm_sc.t3g\n");
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printf(" -o <output-lm-file> # converted output file name. the endian-ness is of host by default.\n");
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void showEndian(const CThreadSlmFile& slm_file)
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int endian = slm_file.getEndian();
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printf("%s\n", endian2str(endian));
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int convert(CThreadSlmFile& slm_file, const char* output, int endian)
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printf("converting from %s to %s ...",
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endian2str(slm_file.getEndian()),
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size_t nwritten = slm_file.save(output, endian);
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if (nwritten != slm_file.size()) {
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fprintf(stderr, "\nfailed to write %s. %zu/%zu bytes written.\n", output, nwritten, slm_file.size());
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main(int argc, char* argv[])
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int endian = CThreadSlmFile::getHostEndian();
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bool opt_info = false;
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const char* input = NULL;
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const char* output = NULL;
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while ((opt = getopt(argc, argv, "e:i:o:v")) != -1) {
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endian = parse_endian(optarg);
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CThreadSlmFile slm_file;
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if (!slm_file.load(input)) {
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fprintf(stderr, "failed to parse %s. corrupt file?\n", input);
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showEndian(slm_file);
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return convert(slm_file, output, endian);