Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/training/unicharset/fileio.h @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /**********************************************************************
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2 * File: fileio.h
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3 * Description: File I/O utilities.
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4 * Author: Samuel Charron
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5 *
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6 * (C) Copyright 2013, Google Inc.
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7 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
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8 * use this file except in compliance with the License. You may obtain a copy
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9 * of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required
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10 * by applicable law or agreed to in writing, software distributed under the
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11 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
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12 * OF ANY KIND, either express or implied. See the License for the specific
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13 * language governing permissions and limitations under the License.
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14 *
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15 **********************************************************************/
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16 #ifndef TESSERACT_TRAINING_FILEIO_H_
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17 #define TESSERACT_TRAINING_FILEIO_H_
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19 #include "export.h"
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20 #include "helpers.h" // for split
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21 #include "serialis.h" // for LoadDataFromFile
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23 #include <tesseract/export.h>
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25 #include <cstddef>
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26 #include <cstdio>
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27 #include <string>
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29 namespace tesseract {
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31 // Reads a file as a vector of string.
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32 inline bool LoadFileLinesToStrings(const char *filename, std::vector<std::string> *lines) {
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33 std::vector<char> data;
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34 if (!LoadDataFromFile(filename, &data)) {
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35 return false;
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36 }
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37 // TODO: optimize.
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38 std::string lines_str(&data[0], data.size());
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39 *lines = split(lines_str, '\n');
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40 return true;
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41 }
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43 // A class to manipulate FILE*s.
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44 class TESS_UNICHARSET_TRAINING_API File {
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45 public:
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46 // Try to open the file 'filename' in mode 'mode'.
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47 // Stop the program if it cannot open it.
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48 static FILE *OpenOrDie(const std::string &filename, const std::string &mode);
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49 static FILE *Open(const std::string &filename, const std::string &mode);
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51 // Try to open the file 'filename' and to write 'str' in it.
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52 // Stop the program if it fails.
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53 static void WriteStringToFileOrDie(const std::string &str, const std::string &filename);
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55 // Return true if the file 'filename' is readable.
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56 static bool Readable(const std::string &filename);
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58 static bool ReadFileToString(const std::string &filename, std::string *out);
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60 // Helper methods
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62 // Concatenate file paths removing any extra intervening '/' symbols.
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63 static std::string JoinPath(const std::string &prefix, const std::string &suffix);
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64 // Delete a filename or all filenames matching a glob pattern.
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65 static bool Delete(const char *pathname);
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66 static bool DeleteMatchingFiles(const char *pattern);
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67 };
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69 // A class to manipulate Files for reading.
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70 class TESS_UNICHARSET_TRAINING_API InputBuffer {
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71 public:
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72 explicit InputBuffer(FILE *stream);
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73 // 'size' is ignored.
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74 InputBuffer(FILE *stream, size_t size);
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76 ~InputBuffer();
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78 // Read data until end-of-file.
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79 // The data is stored in '*out'.
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80 // Return false if an error occurs, true otherwise.
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81 bool Read(std::string *out);
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83 // Close the FILE* used by InputBuffer.
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84 // Return false if an error occurs, true otherwise.
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85 bool CloseFile();
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87 private:
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88 FILE *stream_;
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89 };
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91 // A class to manipulate Files for writing.
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92 class TESS_UNICHARSET_TRAINING_API OutputBuffer {
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93 public:
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94 explicit OutputBuffer(FILE *stream);
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95 // 'size' is ignored.
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96 OutputBuffer(FILE *stream, size_t size);
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98 ~OutputBuffer();
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100 // Write string 'str' to the open FILE*.
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101 void WriteString(const std::string &str);
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102
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103 // Close the FILE* used by InputBuffer.
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104 // Return false if an error occurs, true otherwise.
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105 bool CloseFile();
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106
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107 private:
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108 FILE *stream_;
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109 };
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110
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111 } // namespace tesseract
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112 #endif // TESSERACT_TRAINING_FILEIO_H_