mirror of
https://github.com/tesseract-ocr/tesseract.git
synced 2024-12-05 02:47:00 +08:00
e66d433907
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@907 d0cd1f9f-072b-0410-8dd7-cf729c803f20
93 lines
3.1 KiB
C++
93 lines
3.1 KiB
C++
/**********************************************************************
|
|
* File: mainblk.c (Formerly main.c)
|
|
* Description: Function to call from main() to setup.
|
|
* Author: Ray Smith
|
|
* Created: Tue Oct 22 11:09:40 BST 1991
|
|
*
|
|
* (C) Copyright 1991, Hewlett-Packard Ltd.
|
|
** Licensed under the Apache License, Version 2.0 (the "License");
|
|
** you may not use this file except in compliance with the License.
|
|
** You may obtain a copy of the License at
|
|
** http://www.apache.org/licenses/LICENSE-2.0
|
|
** Unless required by applicable law or agreed to in writing, software
|
|
** distributed under the License is distributed on an "AS IS" BASIS,
|
|
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
** See the License for the specific language governing permissions and
|
|
** limitations under the License.
|
|
*
|
|
**********************************************************************/
|
|
|
|
#include "fileerr.h"
|
|
#ifdef __UNIX__
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#else
|
|
#include <io.h>
|
|
#endif
|
|
#include <stdlib.h>
|
|
#include "ccutil.h"
|
|
|
|
#define VARDIR "configs/" /**< variables files */
|
|
#define EXTERN
|
|
|
|
const ERRCODE NO_PATH =
|
|
"Warning:explicit path for executable will not be used for configs";
|
|
static const ERRCODE USAGE = "Usage";
|
|
|
|
namespace tesseract {
|
|
/**********************************************************************
|
|
* main_setup
|
|
*
|
|
* Main for mithras demo program. Read the arguments and set up globals.
|
|
**********************************************************************/
|
|
|
|
/**
|
|
* @brief CCUtil::main_setup - set location of tessdata and name of image
|
|
*
|
|
* @param argv0 - paths to the directory with language files and config files.
|
|
* An actual value of argv0 is used if not NULL, otherwise TESSDATA_PREFIX is
|
|
* used if not NULL, next try to use compiled in -DTESSDATA_PREFIX. If previous
|
|
* is not sucessul - use current directory.
|
|
* @param basename - name of image
|
|
*/
|
|
void CCUtil::main_setup(const char *argv0, const char *basename) {
|
|
imagebasename = basename; /**< name of image */
|
|
|
|
if (argv0 != NULL) {
|
|
datadir = argv0;
|
|
} else {
|
|
if (getenv("TESSDATA_PREFIX")) {
|
|
datadir = getenv("TESSDATA_PREFIX");
|
|
} else {
|
|
#ifdef TESSDATA_PREFIX
|
|
#define _STR(a) #a
|
|
#define _XSTR(a) _STR(a)
|
|
datadir = _XSTR(TESSDATA_PREFIX);
|
|
#undef _XSTR
|
|
#undef _STR
|
|
#endif
|
|
}
|
|
}
|
|
|
|
// datadir may still be empty:
|
|
if (datadir.length() == 0) {
|
|
datadir = "./";
|
|
} else {
|
|
// Remove tessdata from the end if present, as we will add it back!
|
|
int length = datadir.length();
|
|
if (length >= 8 && strcmp(&datadir[length - 8], "tessdata") == 0)
|
|
datadir.truncate_at(length - 8);
|
|
else if (length >= 9 && strcmp(&datadir[length - 9], "tessdata/") == 0)
|
|
datadir.truncate_at(length - 9);
|
|
}
|
|
|
|
// check for missing directory separator
|
|
const char *lastchar = datadir.string();
|
|
lastchar += datadir.length() - 1;
|
|
if ((strcmp(lastchar, "/") != 0) && (strcmp(lastchar, "\\") != 0))
|
|
datadir += "/";
|
|
|
|
datadir += m_data_sub_dir; /**< data directory */
|
|
}
|
|
} // namespace tesseract
|