tesseract/cutil/listio.cpp

68 lines
2.3 KiB
C++

/* -*-C-*-
################################################################################
#
# File: listio.c
# Description: List I/O processing procedures.
# Author: Mark Seaman, Software Productivity
# Created: Thu Jul 23 13:24:09 1987
# Modified: Fri May 17 17:33:30 1991 (Mark Seaman) marks@hpgrlt
# Language: C
# Package: N/A
# Status: Reusable Software Component
#
# (c) Copyright 1987, Hewlett-Packard Company.
** 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.
#
################################################################################
This file contains the implementations of a set of general purpose
list I/O routines. For the interface definitions look in the file
"listio.h".
---------------------------------------------------------------------------*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "listio.h"
/*---------------------------------------------------------------------------
Public Function Code
---------------------------------------------------------------------------*/
/*************************************************************************
* R E A D L I S T
*
* Read a list of strings from a file. Return the string list to the
* caller.
*************************************************************************/
LIST read_list(const char *filename) {
FILE *infile;
char s[CHARS_PER_LINE];
LIST list;
if ((infile = open_file (filename, "r")) == NULL)
return (NIL_LIST);
list = NIL_LIST;
while (fgets (s, CHARS_PER_LINE, infile) != NULL) {
s[CHARS_PER_LINE - 1] = '\0';
if (strlen (s) > 0) {
if (s[strlen (s) - 1] == '\n')
s[strlen (s) - 1] = '\0';
if (strlen (s) > 0) {
list = push (list, (LIST) strsave (s));
}
}
}
fclose(infile);
return (reverse_d (list));
}