Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/training/unicharset/icuerrorcode.h @ 21:2f43e400f144

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Provide an "all" target to build both the sdist and the wheel
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 10:28:53 +0200
parents b50eed0cc0ef
children
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1 /**********************************************************************
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2 * File: icuerrorcode.h
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3 * Description: Wrapper class for UErrorCode, with conversion operators for
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4 * direct use in ICU C and C++ APIs.
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5 * Author: Fredrik Roubert
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6 * Created: Thu July 4 2013
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7 *
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8 * Features:
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9 * - The constructor initializes the internal UErrorCode to U_ZERO_ERROR,
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10 * removing one common source of errors.
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11 * - Same use in C APIs taking a UErrorCode* (pointer) and C++ taking
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12 * UErrorCode& (reference), via conversion operators.
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13 * - Automatic checking for success when it goes out of scope. On failure,
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14 * the destructor will log an error message and exit.
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15 *
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16 * Most of ICU will handle errors gracefully and provide sensible fallbacks.
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17 * Using IcuErrorCode, it is therefore possible to write very compact code
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18 * that does sensible things on failure and provides logging for debugging.
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19 *
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20 * Example:
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21 * IcuErrorCode icuerrorcode;
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22 * return collator.compareUTF8(a, b, icuerrorcode) == UCOL_EQUAL;
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23 *
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24 * (C) Copyright 2013, Google Inc.
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25 * Licensed under the Apache License, Version 2.0 (the "License");
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26 * you may not use this file except in compliance with the License.
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27 * You may obtain a copy of the License at
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28 * http://www.apache.org/licenses/LICENSE-2.0
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29 * Unless required by applicable law or agreed to in writing, software
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30 * distributed under the License is distributed on an "AS IS" BASIS,
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31 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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32 * See the License for the specific language governing permissions and
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33 * limitations under the License.
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34 *
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35 **********************************************************************/
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36 #ifndef TESSERACT_CCUTIL_ICUERRORCODE_H_
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37 #define TESSERACT_CCUTIL_ICUERRORCODE_H_
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38
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39 #include <cstdlib> // for exit
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40 #include "tprintf.h"
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41 #include "unicode/errorcode.h" // From libicu
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43 namespace tesseract {
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45 class IcuErrorCode : public icu::ErrorCode {
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46 public:
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47 IcuErrorCode() = default;
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48 ~IcuErrorCode() override;
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50 protected:
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51 void handleFailure() const override {
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52 tprintf("ICU ERROR: %s\n", errorName());
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53 exit(errorCode);
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54 }
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56 private:
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57 // Disallow implicit copying of object.
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58 IcuErrorCode(const IcuErrorCode &) = delete;
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59 void operator=(const IcuErrorCode &) = delete;
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60 };
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62 } // namespace tesseract
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63 #endif // TESSERACT_CCUTIL_ICUERRORCODE_H_