/*
* Internal declarations for libcdecl.
* Copyright © 2021, 2023 Nick Bowler
*
* 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, either version 3 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 .
*/
#ifndef CDECL_INTERNAL_H_
#define CDECL_INTERNAL_H_
#include
#include
#include "cdecl.h"
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define _(s) dgettext(PACKAGE, s)
#define N_(s) s
/* Pack the 4 "kind" bits of a valid cdecl specifier value into two bits. */
#define PACK_KIND(x) ((( ((x>>8) - ((x)>>11)) ) >> 1) & 3)
/* Expand a packed "kind" to its original value. */
#define UNPACK_KIND(x) (0x100 << (x))
/*
* Pack a valid cdecl specifier value (CDECL_TYPE_xxx, CDECL_STOR_xxx, etc.)
* into 8 bits. We do this by encoding the specifier kind in the upper two
* bits, and the enumerated sequence in the lower 6 bits. */
#define PACK_SPEC(x) (((x) & 0x3f) | (PACK_KIND(x) << 6))
/*
* Expand a packed specifier to its original value.
*/
#define UNPACK_SPEC(x) (UNPACK_KIND((x) >> 6) | ((x) & 0x3f))
/*
* Pack a parser token into 7 bits.
*
* Bison normally numbers user-defined tokens sequentially starting from 258.
* If api.token,raw is used, then the numbering starts from 3. As we have
* about 50 tokens, the latter case will fit in 7 bits easily; in the former
* case the upper bits are constant so we don't need to store them.
*/
#define PACK_TOKEN(x) ((x) & 0x7f)
/*
* Expand a packed token to its original value.
*/
#define UNPACK_TOKEN(x) ((x) | ((T_IDENT > 256) << 8))
struct cdecl_error;
struct cdecl_declspec;
#if ENABLE_NLS
void cdecl__init_i18n(void);
#else
static inline void cdecl__init_i18n(void)
{
}
#endif
void cdecl__err(unsigned code, const char *fmt, const char *arg);
void cdecl__errmsg(unsigned msg);
struct cdecl_declspec *cdecl__normalize_specs(struct cdecl_declspec *specs);
struct output_state {
char *dst;
size_t dstlen;
size_t accum;
};
size_t cdecl__advance(struct output_state *dst, size_t amount);
size_t cdecl__emit(struct output_state *dst, const char *src);
size_t cdecl__emit_uint(struct output_state *dst, uintmax_t val);
size_t cdecl__strlcpy(char *dst, const char *src, size_t len);
const char *cdecl__emit_specs(struct output_state *dst,
struct cdecl_declspec *s,
unsigned mask);
/*
* If s is a (len bytes long) string corresponding to a declaration
* specifier, then:
*
* - bits 7:0 (LSB) of the return value is the packed specifier type, and
* - bits 15:8 of the return value is the packed parser token.
*
* Otherwise, if english_mode is nonzero and s is an "english keyword",
* returns the appropriate packed parser token in bits 15:8.
*
* Otherwise, PACK_TOKEN(T_IDENT) is returned in bits 15:8.
*/
unsigned cdecl__to_keyword(const char *s, int len, int english_mode);
/* Container for an allocated parser token's value */
struct parse_item {
union {
struct cdecl_declarator declarator;
struct cdecl_declspec declspec;
struct cdecl decl;
} u;
char s[FLEXIBLE_ARRAY_MEMBER];
};
struct parse_item *cdecl__alloc_item(size_t s_sz);
#endif