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https://github.com/tesseract-ocr/tesseract.git
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90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
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/**********************************************************************
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* File: rwpoly.c (Formerly rw_poly.c)
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* Description: latest version of manual page decomp tool
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* Author: Sheelagh Lloyd
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* Created: 16:05 24/3/93
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*
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* This version constructs a list of blocks.
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*
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* (C) Copyright 1993, 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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#include "mfcpch.h"
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#include "pageblk.h"
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#include "rwpoly.h"
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#include "hpddef.h" //must be last (handpd.dll)
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#define EXTERN
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EXTERN DLLSYM PAGE_BLOCK_LIST *page_block_list;
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EXTERN PAGE_BLOCK_IT page_block_it;
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EXTERN BOOL_VAR (blocks_read_asc, TRUE, "Read blocks in ascii format");
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EXTERN BOOL_VAR (blocks_write_asc, TRUE, "Write blocks in ascii format");
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DLLSYM void write_poly_blocks(FILE *blfile, PAGE_BLOCK_LIST *blocks) {
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if (blocks_write_asc)
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blocks->serialise_asc (blfile);
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else
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blocks->serialise (blfile);
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return;
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}
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DLLSYM PAGE_BLOCK_LIST *read_poly_blocks( //read file
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const char *name //file to read
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) {
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FILE *infp;
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int c;
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INT16 number_of_pblocks;
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//output list
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PAGE_BLOCK_LIST *pb_list = NULL;
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PAGE_BLOCK *page_block; //new block for list
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INT32 len; /*length to retrive */
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PAGE_BLOCK_IT it;
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if ((infp = fopen (name, "r")) != NULL) {
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if (((c = fgetc (infp)) != EOF) && (ungetc (c, infp) != EOF)) {
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if (blocks_read_asc) {
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pb_list = new PAGE_BLOCK_LIST;
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len = de_serialise_INT32 (infp);
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it.set_to_list (pb_list);
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for (; len > 0; len--) {
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page_block = PAGE_BLOCK::new_de_serialise_asc (infp);
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/*put on the list */
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it.add_to_end (page_block);
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}
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}
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else
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pb_list = PAGE_BLOCK_LIST::de_serialise (infp);
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page_block_list = pb_list; //set global for now
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}
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fclose(infp);
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}
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else {
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//can't open file
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CANTOPENFILE.error ("read_poly_blocks", LOG, name);
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pb_list = new PAGE_BLOCK_LIST;
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page_block_list = pb_list; //set global for now
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}
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page_block_it.set_to_list (pb_list);
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number_of_pblocks = pb_list->length ();
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printf ("%d page blocks read\n", number_of_pblocks);
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return pb_list;
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}
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