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/**********************************************************************
* 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 "mfcpch.h"
#include "fileerr.h"
#ifdef __UNIX__
#include <unistd.h>
#include <signal.h>
#endif
#include <stdlib.h>
#include "basedir.h"
#include "mainblk.h"
#include "ccutil.h"
#define VARDIR "configs/" /*variables files */
#define EXTERN
/*
EXTERN DLLSYM STRING datadir; //dir for data files
//name of image
EXTERN DLLSYM STRING imagebasename;
EXTERN BOOL_VAR (m_print_variables, FALSE,
"Print initial values of all variables");
EXTERN STRING_VAR (m_data_sub_dir, "tessdata/", "Directory for data files");
EXTERN INT_VAR (memgrab_size, 0, "Preallocation size for batch use");*/
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.
**********************************************************************/
void CCUtil::main_setup( /*main demo program */
const char *argv0, //program name
const char *basename //name of image
) {
imagebasename = basename; /*name of image */
// TESSDATA_PREFIX Environment variable overrules everything.
// Compiled in -DTESSDATA_PREFIX is next.
// NULL goes to current directory.
// An actual value of argv0 is used if getpath is successful.
if(!getenv("TESSDATA_PREFIX")) {
#ifdef TESSDATA_PREFIX
#define _STR(a) #a
#define _XSTR(a) _STR(a)
datadir = _XSTR(TESSDATA_PREFIX);
#undef _XSTR
#undef _STR
#else
if (argv0 != NULL) {
if (getpath (argv0, datadir) < 0)
#ifdef __UNIX__
CANTOPENFILE.error("main", ABORT, "%s to get path", argv0);
#else
NO_PATH.error ("main", DBG, NULL);
#endif
} else {
datadir = "./";
}
#endif
} else {
datadir = getenv("TESSDATA_PREFIX");
}
datadir += m_data_sub_dir; /*data directory */
}
} // namespace tesseract
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