tesseract::File Class Reference

#include <fileio.h>

Static Public Member Functions
static FILE *	OpenOrDie (const string &filename, const string &mode)
static FILE *	Open (const string &filename, const string &mode)
static void	WriteStringToFileOrDie (const string &str, const string &filename)
static bool	Readable (const string &filename)
static bool	ReadFileToString (const string &filename, string *out)
static string	JoinPath (const string &prefix, const string &suffix)
static bool	Delete (const char *pathname)
static bool	DeleteMatchingFiles (const char *pattern)

Detailed Description

Definition at line 31 of file fileio.h.

Member Function Documentation

Delete()

bool tesseract::File::Delete ( const char *  pathname )

static

Definition at line 87 of file fileio.cpp.

                                      {
  const int status = unlink(pathname);
  if (status != 0) {
    tprintf("ERROR: Unable to delete file %s\n", pathname);
    return false;
  }
  return true;
}

DeleteMatchingFiles()

bool tesseract::File::DeleteMatchingFiles ( const char *  pattern )

static

Definition at line 111 of file fileio.cpp.

                                                  {
  glob_t pglob;
  char **paths;
  bool all_deleted = true;
  if (glob(pattern, 0, nullptr, &pglob) == 0) {
    for (paths = pglob.gl_pathv; *paths != nullptr; paths++) {
      all_deleted &= File::Delete(*paths);
    }
    globfree(&pglob);
  }
  return all_deleted;
}

JoinPath()

string tesseract::File::JoinPath ( const string &  prefix, const string &  suffix  )

static

Definition at line 81 of file fileio.cpp.

                                                                {
  return (prefix.empty() || prefix[prefix.size() - 1] == '/')
             ? prefix + suffix
             : prefix + "/" + suffix;
}

Open()

FILE * tesseract::File::Open ( const string &  filename, const string &  mode  )

static

Definition at line 38 of file fileio.cpp.

                                                           {
  return fopen(filename.c_str(), mode.c_str());
}

OpenOrDie()

FILE * tesseract::File::OpenOrDie ( const string &  filename, const string &  mode  )

static

Definition at line 42 of file fileio.cpp.

                                          {
  FILE* stream = fopen(filename.c_str(), mode.c_str());
  if (stream == nullptr) {
    tprintf("Unable to open '%s' in mode '%s'\n", filename.c_str(),
            mode.c_str());
  }
  return stream;
}

Readable()

bool tesseract::File::Readable ( const string &  filename )

static

Definition at line 63 of file fileio.cpp.

                                          {
  FILE* stream = fopen(filename.c_str(), "rb");
  if (stream == nullptr) {
    return false;
  }
  fclose(stream);
  return true;
}

ReadFileToString()

bool tesseract::File::ReadFileToString ( const string &  filename, string *  out  )

static

Definition at line 72 of file fileio.cpp.

                                                               {
  FILE* stream = File::Open(filename.c_str(), "rb");
  if (stream == nullptr) return false;
  InputBuffer in(stream);
  *out = "";
  in.Read(out);
  return in.CloseFile();
}

WriteStringToFileOrDie()

void tesseract::File::WriteStringToFileOrDie ( const string &  str, const string &  filename  )

static

Definition at line 52 of file fileio.cpp.

                                                          {
  FILE* stream = fopen(filename.c_str(), "wb");
  if (stream == nullptr) {
    tprintf("Unable to open '%s' for writing\n", filename.c_str());
    return;
  }
  fputs(str.c_str(), stream);
  ASSERT_HOST(fclose(stream) == 0);
}

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The documentation for this class was generated from the following files:

• /home/stefan/src/github/tesseract-ocr/tesseract/training/fileio.h
• /home/stefan/src/github/tesseract-ocr/tesseract/training/fileio.cpp