source/libs/poppler/poppler-src/poppler/Error.cc

   1 //========================================================================
   2 //
   3 // Error.cc
   4 //
   5 // Copyright 1996-2003 Glyph & Cog, LLC
   6 //
   7 //========================================================================
   8
   9 //========================================================================
  10 //
  11 // Modified under the Poppler project - http://poppler.freedesktop.org
  12 //
  13 // All changes made under the Poppler project to this file are licensed
  14 // under GPL version 2 or later
  15 //
  16 // Copyright (C) 2005, 2007 Jeff Muizelaar <jeff@infidigm.net>
  17 // Copyright (C) 2005 Albert Astals Cid <aacid@kde.org>
  18 // Copyright (C) 2007 Krzysztof Kowalczyk <kkowalczyk@gmail.com>
  19 // Copyright (C) 2012 Marek Kasik <mkasik@redhat.com>
  20 // Copyright (C) 2013 Adrian Johnson <ajohnson@redneon.com>
  21 //
  22 // To see a description of the changes please see the Changelog file that
  23 // came with your tarball or type make ChangeLog if you are building from git
  24 //
  25 //========================================================================
  26
  27 #include <config.h>
  28
  29 #ifdef USE_GCC_PRAGMAS
  30 #pragma implementation
  31 #endif
  32
  33 #include <stdio.h>
  34 #include <stddef.h>
  35 #include <stdarg.h>
  36 #include "GooString.h"
  37 #include "GlobalParams.h"
  38 #include "Error.h"
  39
  40 static const char *errorCategoryNames[] = {
  41   "Syntax Warning",
  42   "Syntax Error",
  43   "Config Error",
  44   "Command Line Error",
  45   "I/O Error",
  46   "Permission Error",
  47   "Unimplemented Feature",
  48   "Internal Error"
  49 };
  50
  51 static void (*errorCbk)(void *data, ErrorCategory category,
  52                         Goffset pos, char *msg) = NULL;
  53 static void *errorCbkData = NULL;
  54
  55 void setErrorCallback(void (*cbk)(void *data, ErrorCategory category,
  56                                   Goffset pos, char *msg),
  57                       void *data) {
  58   errorCbk = cbk;
  59   errorCbkData = data;
  60 }
  61
  62 void CDECL error(ErrorCategory category, Goffset pos, const char *msg, ...) {
  63   va_list args;
  64   GooString *s, *sanitized;
  65
  66   // NB: this can be called before the globalParams object is created
  67   if (!errorCbk && globalParams && globalParams->getErrQuiet()) {
  68     return;
  69   }
  70   va_start(args, msg);
  71   s = GooString::formatv(msg, args);
  72   va_end(args);
  73
  74   sanitized = new GooString ();
  75   for (int i = 0; i < s->getLength(); ++i) {
  76     const char c = s->getChar(i);
  77     if (c < (char)0x20 || c >= (char)0x7f) {
  78       sanitized->appendf("<{0:02x}>", c & 0xff);
  79     } else {
  80       sanitized->append(c);
  81     }
  82   }
  83
  84   if (errorCbk) {
  85     (*errorCbk)(errorCbkData, category, pos, sanitized->getCString());
  86   } else {
  87     if (pos >= 0) {
  88       fprintf(stderr, "%s (%lld): %s\n",
  89               errorCategoryNames[category], (long long)pos, sanitized->getCString());
  90     } else {
  91       fprintf(stderr, "%s: %s\n",
  92               errorCategoryNames[category], sanitized->getCString());
  93     }
  94     fflush(stderr);
  95   }
  96   delete s;
  97   delete sanitized;
  98 }