Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccutil/tprintf.cpp @ 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: tprintf.cpp
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3 * Description: Trace version of printf - portable between UX and NT
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4 * Author: Phil Cheatle
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5 *
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6 * (C) Copyright 1995, Hewlett-Packard Ltd.
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7 ** Licensed under the Apache License, Version 2.0 (the "License");
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8 ** you may not use this file except in compliance with the License.
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9 ** You may obtain a copy of the License at
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10 ** http://www.apache.org/licenses/LICENSE-2.0
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11 ** Unless required by applicable law or agreed to in writing, software
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12 ** distributed under the License is distributed on an "AS IS" BASIS,
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13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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14 ** See the License for the specific language governing permissions and
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15 ** limitations under the License.
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16 *
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17 **********************************************************************/
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19 // Include automatically generated configuration file if running autoconf.
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20 #ifdef HAVE_CONFIG_H
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21 # include "config_auto.h"
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22 #endif
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24 #include "tesserrstream.h"
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25 #include "tprintf.h"
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27 #include "params.h"
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29 #include <climits> // for INT_MAX
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30 #include <cstdarg>
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31 #include <cstdio>
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33 namespace tesseract {
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35 INT_VAR(log_level, INT_MAX, "Logging level");
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37 static STRING_VAR(debug_file, "", "File to send tprintf output to");
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39 // File for debug output.
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40 FILE *debugfp;
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42 // Set output for log messages.
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43 // The output is written to stderr if debug_file is empty.
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44 // Otherwise it is written to debug_file.
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45 // It is possible to switch between stderr and debug_file output:
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46 // tprintf("write to configured output\n");
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47 // debug_file = "";
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48 // tprintf("write to stderr\n");
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49 // debug_file = "/tmp/log";
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50 // tprintf("write to /tmp/log\n");
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51 // debug_file = "";
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52 // tprintf("write to stderr\n");
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53 FILE *get_debugfp() {
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54 if (debug_file.empty()) {
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55 // Write to stderr.
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56 if (debugfp != stderr && debugfp != nullptr) {
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57 fclose(debugfp);
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58 }
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59 debugfp = stderr;
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60 } else if (debugfp == stderr || debugfp == nullptr) {
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61 // Write to file.
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62 #ifdef _WIN32
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63 if (debug_file == "/dev/null") {
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64 // Replace /dev/null by nul for Windows.
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65 debug_file = "nul";
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66 }
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67 #endif
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68 debugfp = fopen(debug_file.c_str(), "wb");
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69 }
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70 return debugfp;
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71 }
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73 // Trace printf.
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74 void tprintf(const char *format, ...) {
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75 FILE *f = get_debugfp();
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76 va_list args; // variable args
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77 va_start(args, format); // variable list
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78 vfprintf(f, format, args);
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79 va_end(args);
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80 }
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81
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82 TessErrStream tesserr;
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83
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84 } // namespace tesseract