mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 12:11:10 +00:00
147 lines
3.2 KiB
C
147 lines
3.2 KiB
C
/* Copyright (C) 1996-2001, 2002, 2003, 2005 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper, <drepper@gnu.org>.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published
|
|
by the Free Software Foundation; version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _LINEREADER_H
|
|
#define _LINEREADER_H 1
|
|
|
|
#include <ctype.h>
|
|
#include <libintl.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
|
|
#include "charmap.h"
|
|
#include "error.h"
|
|
#include "locfile-token.h"
|
|
#include "repertoire.h"
|
|
|
|
|
|
typedef const struct keyword_t *(*kw_hash_fct_t) (const char *, unsigned int);
|
|
struct charset_t;
|
|
struct localedef_t;
|
|
|
|
struct token
|
|
{
|
|
enum token_t tok;
|
|
union
|
|
{
|
|
struct
|
|
{
|
|
char *startmb;
|
|
size_t lenmb;
|
|
uint32_t *startwc;
|
|
size_t lenwc;
|
|
} str;
|
|
unsigned long int num;
|
|
struct
|
|
{
|
|
/* This element is sized on the safe expectation that no single
|
|
character in any character set uses more then 16 bytes. */
|
|
unsigned char bytes[16];
|
|
int nbytes;
|
|
} charcode;
|
|
uint32_t ucs4;
|
|
} val;
|
|
};
|
|
|
|
|
|
struct linereader
|
|
{
|
|
FILE *fp;
|
|
const char *fname;
|
|
char *buf;
|
|
size_t bufsize;
|
|
size_t bufact;
|
|
size_t lineno;
|
|
|
|
size_t idx;
|
|
|
|
char comment_char;
|
|
char escape_char;
|
|
|
|
struct token token;
|
|
|
|
int translate_strings;
|
|
int return_widestr;
|
|
|
|
kw_hash_fct_t hash_fct;
|
|
};
|
|
|
|
|
|
/* Functions defined in linereader.c. */
|
|
extern struct linereader *lr_open (const char *fname, kw_hash_fct_t hf);
|
|
extern struct linereader *lr_create (FILE *fp, const char *fname,
|
|
kw_hash_fct_t hf);
|
|
extern int lr_eof (struct linereader *lr);
|
|
extern void lr_close (struct linereader *lr);
|
|
extern int lr_next (struct linereader *lr);
|
|
extern struct token *lr_token (struct linereader *lr,
|
|
const struct charmap_t *charmap,
|
|
struct localedef_t *locale,
|
|
const struct repertoire_t *repertoire,
|
|
int verbose);
|
|
extern void lr_ignore_rest (struct linereader *lr, int verbose);
|
|
|
|
|
|
#define lr_error(lr, fmt, args...) \
|
|
WITH_CUR_LOCALE (error_at_line (0, 0, lr->fname, lr->lineno, fmt, ## args))
|
|
|
|
|
|
|
|
static inline int
|
|
__attribute ((always_inline))
|
|
lr_getc (struct linereader *lr)
|
|
{
|
|
if (lr->idx == lr->bufact)
|
|
{
|
|
if (lr->bufact != 0)
|
|
if (lr_next (lr) < 0)
|
|
return EOF;
|
|
|
|
if (lr->bufact == 0)
|
|
return EOF;
|
|
}
|
|
|
|
return lr->buf[lr->idx] == '\32' ? EOF : lr->buf[lr->idx++];
|
|
}
|
|
|
|
|
|
static inline int
|
|
__attribute ((always_inline))
|
|
lr_ungetc (struct linereader *lr, int ch)
|
|
{
|
|
if (lr->idx == 0)
|
|
return -1;
|
|
|
|
if (ch != EOF)
|
|
lr->buf[--lr->idx] = ch;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static inline int
|
|
lr_ungetn (struct linereader *lr, size_t n)
|
|
{
|
|
if (lr->idx < n)
|
|
return -1;
|
|
|
|
lr->idx -= n;
|
|
return 0;
|
|
}
|
|
|
|
|
|
#endif /* linereader.h */
|