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Hash :
7b089321
Author :
Date :
2025-01-01T09:24:36
maint: run 'make update-copyright'
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/* A string or file based input stream, that keeps track of a line number.
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
#include <config.h>
/* Specification. */
#include "sfl-istream.h"
void
sfl_istream_init_from_file (sfl_istream_t *stream, FILE *fp)
{
sf_istream_init_from_file (&stream->istream, fp);
stream->line_number = 1;
}
void
sfl_istream_init_from_string (sfl_istream_t *stream, const char *input)
{
sf_istream_init_from_string (&stream->istream, input);
stream->line_number = 1;
}
void
sfl_istream_init_from_string_desc (sfl_istream_t *stream, string_desc_t input)
{
sf_istream_init_from_string_desc (&stream->istream, input);
stream->line_number = 1;
}
void
sfl_set_line_number (sfl_istream_t *stream, size_t line_number)
{
stream->line_number = line_number;
}
size_t
sfl_get_line_number (sfl_istream_t *stream)
{
return stream->line_number;
}
int
sfl_getc (sfl_istream_t *stream)
{
int c = sf_getc (&stream->istream);
if (c == '\n')
stream->line_number++;
return c;
}
int
sfl_ferror (sfl_istream_t *stream)
{
return sf_ferror (&stream->istream);
}
void
sfl_ungetc (sfl_istream_t *stream, int c)
{
if (c == '\n')
stream->line_number--;
sf_ungetc (&stream->istream, c);
}
void
sfl_free (sfl_istream_t *stream)
{
sf_free (&stream->istream);
}