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https://github.com/tesseract-ocr/tesseract.git
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93c8e5d2d3
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@209 d0cd1f9f-072b-0410-8dd7-cf729c803f20
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
/**********************************************************************
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* File: mainblk.c (Formerly main.c)
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* Description: Function to call from main() to setup.
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* Author: Ray Smith
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* Created: Tue Oct 22 11:09:40 BST 1991
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*
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* (C) Copyright 1991, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#define BLOB_MATCHING_ON
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#include "mfcpch.h"
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#include "fileerr.h"
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#ifdef __UNIX__
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#include <unistd.h>
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#include <signal.h>
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#else
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#include <io.h>
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#endif
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#include <stdlib.h>
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#include "basedir.h"
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#include "mainblk.h"
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#define VARDIR "configs/" /*variables files */
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#define EXTERN
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EXTERN DLLSYM STRING datadir; //dir for data files
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//name of image
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EXTERN DLLSYM STRING imagebasename;
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EXTERN BOOL_VAR (m_print_variables, FALSE,
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"Print initial values of all variables");
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EXTERN STRING_VAR (m_data_sub_dir, "tessdata/", "Directory for data files");
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/*
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EXTERN INT_VAR (memgrab_size, 0, "Preallocation size for batch use");*/
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const ERRCODE NO_PATH =
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"Warning:explicit path for executable will not be used for configs";
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static const ERRCODE USAGE = "Usage";
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/**********************************************************************
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* main_setup
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*
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* Main for mithras demo program. Read the arguments and set up globals.
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**********************************************************************/
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void main_setup( /*main demo program */
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const char *argv0, //program name
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const char *basename, //name of image
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int argc, /*argument count */
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const char *const *argv /*arguments */
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) {
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inT32 arg; /*argument */
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inT32 offset; //for flag
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FILE *fp; /*variables file */
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char flag[2]; //+/-
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STRING varfile; /*name of file */
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imagebasename = basename; /*name of image */
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// TESSDATA_PREFIX Environment variable overrules everything.
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// Compiled in -DTESSDATA_PREFIX is next.
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// NULL goes to current directory.
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// An actual value of argv0 is used if getpath is successful.
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if (!getenv("TESSDATA_PREFIX")) {
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#ifdef TESSDATA_PREFIX
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#define _STR(a) #a
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#define _XSTR(a) _STR(a)
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datadir = _XSTR(TESSDATA_PREFIX);
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#undef _XSTR
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#undef _STR
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#else
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if (argv0 != NULL) {
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if (getpath(argv0, datadir) < 0)
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#ifdef __UNIX__
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CANTOPENFILE.error("main", ABORT, "%s to get path", argv0);
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#else
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NO_PATH.error("main", DBG, NULL);
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#endif
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} else {
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datadir = "./";
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}
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#endif
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} else {
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datadir = getenv("TESSDATA_PREFIX");
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}
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for (arg = 0; arg < argc; arg++) {
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if (argv[arg][0] == '+' || argv[arg][0] == '-') {
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offset = 1;
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flag[0] = argv[arg][0];
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}
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else {
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offset = 0;
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}
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flag[offset] = '\0';
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varfile = flag;
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/*attempt open */
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fp = fopen (argv[arg] + offset, "r");
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if (fp != NULL) {
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fclose(fp); /*was only to test */
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}
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else {
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varfile += datadir;
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varfile += m_data_sub_dir; /*data directory */
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varfile += VARDIR; /*variables dir */
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}
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/*actual name */
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varfile += argv[arg] + offset;
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read_variables_file (varfile.string ());
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}
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if (m_print_variables)
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print_variables(stdout); /*print them all */
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datadir += m_data_sub_dir; /*data directory */
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}
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