| /********************************************************************** |
| * 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 |