#line 2 "src/scan-code.c"
#line 4 "src/scan-code.c"
#define YY_INT_ALIGNED short int
/* A lexical scanner generated by flex */
/* %not-for-header */
/* %if-c-only */
/* %if-not-reentrant */
#define yy_create_buffer code__create_buffer
#define yy_delete_buffer code__delete_buffer
#define yy_flex_debug code__flex_debug
#define yy_init_buffer code__init_buffer
#define yy_flush_buffer code__flush_buffer
#define yy_load_buffer_state code__load_buffer_state
#define yy_switch_to_buffer code__switch_to_buffer
#define yyin code_in
#define yyleng code_leng
#define yylex code_lex
#define yylineno code_lineno
#define yyout code_out
#define yyrestart code_restart
#define yytext code_text
#define yywrap code_wrap
#define yyalloc code_alloc
#define yyrealloc code_realloc
#define yyfree code_free
/* %endif */
/* %endif */
/* %ok-for-header */
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#define YY_FLEX_SUBMINOR_VERSION 37
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
/* %if-c++-only */
/* %endif */
/* %if-c-only */
/* %endif */
/* %if-c-only */
/* %endif */
/* First, we deal with platform-specific or compiler-specific issues. */
/* begin standard C headers. */
/* %if-c-only */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
/* %endif */
/* %if-tables-serialization */
/* %endif */
/* end standard C headers. */
/* %if-c-or-c++ */
/* flex integer type definitions */
#ifndef FLEXINT_H
#define FLEXINT_H
/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
* if you want the limit (max/min) macros for int types.
*/
#ifndef __STDC_LIMIT_MACROS
#define __STDC_LIMIT_MACROS 1
#endif
#include <inttypes.h>
typedef int8_t flex_int8_t;
typedef uint8_t flex_uint8_t;
typedef int16_t flex_int16_t;
typedef uint16_t flex_uint16_t;
typedef int32_t flex_int32_t;
typedef uint32_t flex_uint32_t;
#else
typedef signed char flex_int8_t;
typedef short int flex_int16_t;
typedef int flex_int32_t;
typedef unsigned char flex_uint8_t;
typedef unsigned short int flex_uint16_t;
typedef unsigned int flex_uint32_t;
/* Limits of integral types. */
#ifndef INT8_MIN
#define INT8_MIN (-128)
#endif
#ifndef INT16_MIN
#define INT16_MIN (-32767-1)
#endif
#ifndef INT32_MIN
#define INT32_MIN (-2147483647-1)
#endif
#ifndef INT8_MAX
#define INT8_MAX (127)
#endif
#ifndef INT16_MAX
#define INT16_MAX (32767)
#endif
#ifndef INT32_MAX
#define INT32_MAX (2147483647)
#endif
#ifndef UINT8_MAX
#define UINT8_MAX (255U)
#endif
#ifndef UINT16_MAX
#define UINT16_MAX (65535U)
#endif
#ifndef UINT32_MAX
#define UINT32_MAX (4294967295U)
#endif
#endif /* ! C99 */
#endif /* ! FLEXINT_H */
/* %endif */
/* %if-c++-only */
/* %endif */
#ifdef __cplusplus
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else /* ! __cplusplus */
/* C99 requires __STDC__ to be defined as 1. */
#if defined (__STDC__)
#define YY_USE_CONST
#endif /* defined (__STDC__) */
#endif /* ! __cplusplus */
#ifdef YY_USE_CONST
#define yyconst const
#else
#define yyconst
#endif
/* %not-for-header */
/* Returned upon end-of-file. */
#define YY_NULL 0
/* %ok-for-header */
/* %not-for-header */
/* Promotes a possibly negative, possibly signed char to an unsigned
* integer for use as an array index. If the signed char is negative,
* we want to instead treat it as an 8-bit unsigned char, hence the
* double cast.
*/
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
/* %ok-for-header */
/* %if-reentrant */
/* %endif */
/* %if-not-reentrant */
/* %endif */
/* Enter a start condition. This macro really ought to take a parameter,
* but we do it the disgusting crufty way forced on us by the ()-less
* definition of BEGIN.
*/
#define BEGIN (yy_start) = 1 + 2 *
/* Translate the current start state into a value that can be later handed
* to BEGIN to return to the state. The YYSTATE alias is for lex
* compatibility.
*/
#define YY_START (((yy_start) - 1) / 2)
#define YYSTATE YY_START
/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE code_restart(code_in )
#define YY_END_OF_BUFFER_CHAR 0
/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#define YY_BUF_SIZE 16384
#endif
/* The state buf must be large enough to hold one state per character in the main buffer.
*/
#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
#ifndef YY_TYPEDEF_YY_BUFFER_STATE
#define YY_TYPEDEF_YY_BUFFER_STATE
typedef struct yy_buffer_state *YY_BUFFER_STATE;
#endif
#ifndef YY_TYPEDEF_YY_SIZE_T
#define YY_TYPEDEF_YY_SIZE_T
typedef size_t yy_size_t;
#endif
/* %if-not-reentrant */
extern yy_size_t code_leng;
/* %endif */
/* %if-c-only */
/* %if-not-reentrant */
extern FILE *code_in, *code_out;
/* %endif */
/* %endif */
#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
#define YY_LESS_LINENO(n)
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
do \
{ \
/* Undo effects of setting up code_text. */ \
int yyless_macro_arg = (n); \
YY_LESS_LINENO(yyless_macro_arg);\
*yy_cp = (yy_hold_char); \
YY_RESTORE_YY_MORE_OFFSET \
(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
YY_DO_BEFORE_ACTION; /* set up code_text again */ \
} \
while ( 0 )
#define unput(c) yyunput( c, (yytext_ptr) )
#ifndef YY_STRUCT_YY_BUFFER_STATE
#define YY_STRUCT_YY_BUFFER_STATE
struct yy_buffer_state
{
/* %if-c-only */
FILE *yy_input_file;
/* %endif */
/* %if-c++-only */
/* %endif */
char *yy_ch_buf; /* input buffer */
char *yy_buf_pos; /* current position in input buffer */
/* Size of input buffer in bytes, not including room for EOB
* characters.
*/
yy_size_t yy_buf_size;
/* Number of characters read into yy_ch_buf, not including EOB
* characters.
*/
yy_size_t yy_n_chars;
/* Whether we "own" the buffer - i.e., we know we created it,
* and can realloc() it to grow it, and should free() it to
* delete it.
*/
int yy_is_our_buffer;
/* Whether this is an "interactive" input source; if so, and
* if we're using stdio for input, then we want to use getc()
* instead of fread(), to make sure we stop fetching input after
* each newline.
*/
int yy_is_interactive;
/* Whether we're considered to be at the beginning of a line.
* If so, '^' rules will be active on the next match, otherwise
* not.
*/
int yy_at_bol;
int yy_bs_lineno; /**< The line count. */
int yy_bs_column; /**< The column count. */
/* Whether to try to fill the input buffer when we reach the
* end of it.
*/
int yy_fill_buffer;
int yy_buffer_status;
#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
/* When an EOF's been seen but there's still some text to process
* then we mark the buffer as YY_EOF_PENDING, to indicate that we
* shouldn't try reading from the input source any more. We might
* still have a bunch of tokens to match, though, because of
* possible backing-up.
*
* When we actually see the EOF, we change the status to "new"
* (via code_restart()), so that the user can continue scanning by
* just pointing code_in at a new input file.
*/
#define YY_BUFFER_EOF_PENDING 2
};
#endif /* !YY_STRUCT_YY_BUFFER_STATE */
/* %if-c-only Standard (non-C++) definition */
/* %not-for-header */
/* %if-not-reentrant */
/* Stack of input buffers. */
static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */
/* %endif */
/* %ok-for-header */
/* %endif */
/* We provide macros for accessing buffer states in case in the
* future we want to put the buffer states in a more general
* "scanner state".
*
* Returns the top of the stack, or NULL.
*/
#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
? (yy_buffer_stack)[(yy_buffer_stack_top)] \
: NULL)
/* Same as previous macro, but useful when we know that the buffer stack is not
* NULL or when we need an lvalue. For internal use only.
*/
#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
/* %if-c-only Standard (non-C++) definition */
/* %if-not-reentrant */
/* %not-for-header */
/* yy_hold_char holds the character lost when code_text is formed. */
static char yy_hold_char;
static yy_size_t yy_n_chars; /* number of characters read into yy_ch_buf */
yy_size_t code_leng;
/* Points to current character in buffer. */
static char *yy_c_buf_p = (char *) 0;
static int yy_init = 0; /* whether we need to initialize */
static int yy_start = 0; /* start state number */
/* Flag which is used to allow code_wrap()'s to do buffer switches
* instead of setting up a fresh code_in. A bit of a hack ...
*/
static int yy_did_buffer_switch_on_eof;
/* %ok-for-header */
/* %endif */
void code_restart (FILE *input_file );
void code__switch_to_buffer (YY_BUFFER_STATE new_buffer );
YY_BUFFER_STATE code__create_buffer (FILE *file,int size );
void code__delete_buffer (YY_BUFFER_STATE b );
void code__flush_buffer (YY_BUFFER_STATE b );
void code_push_buffer_state (YY_BUFFER_STATE new_buffer );
void code_pop_buffer_state (void );
static void code_ensure_buffer_stack (void );
static void code__load_buffer_state (void );
static void code__init_buffer (YY_BUFFER_STATE b,FILE *file );
#define YY_FLUSH_BUFFER code__flush_buffer(YY_CURRENT_BUFFER )
YY_BUFFER_STATE code__scan_buffer (char *base,yy_size_t size );
YY_BUFFER_STATE code__scan_string (yyconst char *yy_str );
YY_BUFFER_STATE code__scan_bytes (yyconst char *bytes,yy_size_t len );
/* %endif */
void *code_alloc (yy_size_t );
void *code_realloc (void *,yy_size_t );
void code_free (void * );
#define yy_new_buffer code__create_buffer
#define yy_set_interactive(is_interactive) \
{ \
if ( ! YY_CURRENT_BUFFER ){ \
code_ensure_buffer_stack (); \
YY_CURRENT_BUFFER_LVALUE = \
code__create_buffer(code_in,YY_BUF_SIZE ); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
}
#define yy_set_bol(at_bol) \
{ \
if ( ! YY_CURRENT_BUFFER ){\
code_ensure_buffer_stack (); \
YY_CURRENT_BUFFER_LVALUE = \
code__create_buffer(code_in,YY_BUF_SIZE ); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
}
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
/* %% [1.0] code_text/code_in/code_out/yy_state_type/code_lineno etc. def's & init go here */
/* Begin user sect3 */
#define code_wrap() 1
#define YY_SKIP_YYWRAP
#define FLEX_DEBUG
typedef unsigned char YY_CHAR;
FILE *code_in = (FILE *) 0, *code_out = (FILE *) 0;
typedef int yy_state_type;
extern int code_lineno;
int code_lineno = 1;
extern char *code_text;
#define yytext_ptr code_text
/* %if-c-only Standard (non-C++) definition */
static yy_state_type yy_get_previous_state (void );
static yy_state_type yy_try_NUL_trans (yy_state_type current_state );
static int yy_get_next_buffer (void );
static void yy_fatal_error (yyconst char msg[] );
/* %endif */
/* Done after the current pattern has been matched and before the
* corresponding action - sets up code_text.
*/
#define YY_DO_BEFORE_ACTION \
(yytext_ptr) = yy_bp; \
/* %% [2.0] code to fiddle code_text and code_leng for yymore() goes here \ */\
code_leng = (size_t) (yy_cp - yy_bp); \
(yy_hold_char) = *yy_cp; \
*yy_cp = '\0'; \
/* %% [3.0] code to copy yytext_ptr to code_text[] goes here, if %array \ */\
(yy_c_buf_p) = yy_cp;
/* %% [4.0] data tables for the DFA and the user's section 1 definitions go here */
#define YY_NUM_RULES 18
#define YY_END_OF_BUFFER 19
/* This struct is not used in this scanner,
but its presence is necessary. */
struct yy_trans_info
{
flex_int32_t yy_verify;
flex_int32_t yy_nxt;
};
static yyconst flex_int16_t yy_accept[91] =
{ 0,
0, 0, 0, 0, 3, 3, 4, 4, 4, 4,
0, 0, 0, 0, 19, 17, 16, 17, 2, 17,
6, 17, 5, 8, 11, 7, 17, 11, 11, 11,
1, 0, 0, 3, 4, 4, 4, 4, 12, 0,
12, 12, 0, 0, 9, 10, 0, 13, 0, 13,
13, 0, 14, 0, 15, 0, 0, 0, 0, 0,
0, 0, 12, 0, 0, 0, 0, 0, 13, 0,
0, 0, 0, 0, 0, 0, 0, 0, 12, 0,
12, 12, 0, 14, 12, 12, 0, 0, 0, 0
} ;
static yyconst flex_int32_t yy_ec[256] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
2, 2, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 1, 4, 1, 5, 1, 1, 6, 1,
1, 7, 1, 1, 8, 9, 10, 11, 11, 11,
11, 11, 11, 11, 11, 11, 11, 1, 1, 12,
1, 13, 1, 14, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
15, 16, 17, 1, 9, 1, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
9, 9, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1
} ;
static yyconst flex_int32_t yy_meta[19] =
{ 0,
1, 1, 2, 1, 1, 1, 1, 3, 3, 1,
3, 1, 2, 1, 1, 1, 1, 2
} ;
static yyconst flex_int16_t yy_base[97] =
{ 0,
0, 13, 121, 120, 0, 3, 4, 5, 6, 7,
27, 0, 20, 21, 125, 178, 178, 26, 178, 8,
178, 41, 178, 178, 53, 178, 62, 74, 33, 119,
178, 37, 44, 105, 178, 46, 101, 48, 178, 99,
0, 96, 98, 91, 178, 178, 50, 178, 87, 0,
86, 87, 178, 76, 178, 52, 50, 68, 71, 73,
78, 74, 0, 16, 78, 84, 85, 0, 0, 94,
86, 96, 55, 107, 0, 0, 58, 118, 100, 124,
130, 136, 142, 106, 46, 0, 148, 43, 0, 178,
165, 168, 4, 171, 1, 174
} ;
static yyconst flex_int16_t yy_def[97] =
{ 0,
91, 91, 2, 2, 2, 2, 2, 2, 2, 2,
2, 11, 11, 11, 90, 90, 90, 90, 90, 90,
90, 92, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
93, 90, 94, 90, 90, 90, 90, 90, 90, 95,
90, 90, 90, 96, 90, 90, 90, 90, 90, 90,
90, 92, 93, 94, 94, 90, 90, 27, 95, 90,
96, 96, 25, 94, 66, 70, 90, 96, 94, 94,
94, 94, 94, 96, 81, 81, 81, 87, 87, 0,
90, 90, 90, 90, 90, 90
} ;
static yyconst flex_int16_t yy_nxt[197] =
{ 0,
90, 90, 19, 69, 17, 19, 63, 21, 21, 33,
34, 23, 23, 17, 17, 20, 17, 17, 20, 22,
22, 22, 22, 65, 29, 29, 17, 17, 73, 17,
24, 25, 26, 30, 30, 31, 27, 53, 56, 57,
28, 32, 36, 37, 54, 33, 34, 59, 37, 61,
62, 67, 68, 56, 57, 74, 38, 39, 74, 31,
40, 41, 53, 42, 43, 32, 90, 44, 45, 33,
34, 46, 59, 37, 59, 37, 90, 47, 48, 61,
62, 49, 50, 72, 51, 65, 67, 68, 52, 38,
74, 75, 75, 72, 75, 70, 51, 51, 77, 66,
39, 76, 76, 72, 76, 65, 42, 65, 78, 42,
48, 79, 73, 72, 80, 81, 60, 82, 77, 73,
58, 83, 84, 55, 90, 72, 18, 18, 90, 90,
77, 65, 90, 90, 82, 90, 74, 85, 86, 90,
86, 90, 73, 65, 90, 90, 82, 90, 73, 65,
87, 90, 90, 90, 73, 88, 89, 90, 89, 90,
90, 90, 90, 90, 79, 16, 16, 16, 35, 35,
35, 64, 90, 64, 71, 90, 71, 15, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90
} ;
static yyconst flex_int16_t yy_chk[197] =
{ 0,
0, 0, 5, 95, 1, 6, 93, 7, 8, 20,
20, 9, 10, 1, 1, 5, 1, 2, 6, 7,
8, 9, 10, 64, 13, 14, 2, 2, 64, 2,
11, 11, 11, 13, 14, 18, 11, 29, 32, 32,
11, 18, 22, 22, 29, 33, 33, 36, 36, 38,
38, 47, 47, 56, 56, 88, 22, 25, 85, 57,
25, 25, 77, 25, 25, 57, 73, 25, 27, 58,
58, 27, 59, 59, 60, 60, 62, 27, 28, 61,
61, 28, 28, 54, 28, 65, 67, 67, 28, 62,
65, 66, 66, 71, 66, 52, 51, 49, 71, 44,
66, 70, 70, 72, 70, 43, 42, 79, 72, 40,
70, 74, 79, 84, 74, 74, 37, 74, 84, 74,
34, 74, 78, 30, 15, 78, 4, 3, 0, 0,
78, 80, 0, 0, 80, 0, 80, 81, 81, 0,
81, 0, 81, 82, 0, 0, 82, 0, 82, 83,
83, 0, 0, 0, 83, 87, 87, 0, 87, 0,
0, 0, 0, 0, 87, 91, 91, 91, 92, 92,
92, 94, 0, 94, 96, 0, 96, 90, 90, 90,
90, 90, 90, 90, 90, 90, 90, 90, 90, 90,
90, 90, 90, 90, 90, 90
} ;
static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;
extern int code__flex_debug;
int code__flex_debug = 1;
static yyconst flex_int16_t yy_rule_linenum[18] =
{ 0,
114, 124, 125, 135, 140, 145, 151, 152, 153, 154,
156, 164, 170, 180, 188, 198, 201
} ;
/* The intent behind this definition is that it'll catch
* any uses of REJECT which flex missed.
*/
#define REJECT reject_used_but_not_detected
#define yymore() yymore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *code_text;
#line 1 "/Users/akim/src/gnu/bison/src/scan-code.l"
/* Bison Action Scanner -*- C -*-
Copyright (C) 2006-2015 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
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 <http://www.gnu.org/licenses/>. */
#define YY_NO_INPUT 1
#line 24 "/Users/akim/src/gnu/bison/src/scan-code.l"
/* Work around a bug in flex 2.5.31. See Debian bug 333231
<http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=333231>. */
#undef code_wrap
#define code_wrap() 1
#define FLEX_PREFIX(Id) code_ ## Id
#include <src/flex-scanner.h>
#include <src/complain.h>
#include <src/reader.h>
#include <src/getargs.h>
#include <src/muscle-tab.h>
#include <src/scan-code.h>
#include <src/symlist.h>
#include <c-ctype.h>
#include <get-errno.h>
#include <quote.h>
/* The current calling start condition: SC_RULE_ACTION or
SC_SYMBOL_ACTION. */
# define YY_DECL static char *code_lex (code_props *self, int sc_context)
YY_DECL;
#define YY_USER_ACTION location_compute (loc, &loc->end, code_text, code_leng);
static char *fetch_type_name (char *cp, char const **type_name,
location dollar_loc);
static void handle_action_dollar (symbol_list *rule, char *cp,
location dollar_loc);
static void handle_action_at (symbol_list *rule, char *cp, location at_loc);
/* A string to be pushed to obstack after dollar/at has been handled. */
static char *ref_tail_fields;
static location the_location;
static location *loc = &the_location;
/* A string representing the most recent translation. */
static char *last_string;
/* True if an untyped $$ or $n was seen. */
static bool untyped_var_seen;
/* C and C++ comments in code. */
/* Strings and characters in code. */
/* Whether in a rule or symbol action. Specifies the translation
of $ and @. */
/* POSIX says that a tag must be both an id and a C union member, but
historically almost any character is allowed in a tag. We disallow
NUL and newline, as this simplifies our implementation. We allow
"->" as a means to dereference a pointer. */
/* Zero or more instances of backslash-newline. Following GCC, allow
white space between the backslash and the newline. */
/* C style identifier. Must start with letter. Will be used for
named symbol references. Shall be kept synchronized with
scan-gram.l "letter" and "id". */
#line 713 "src/scan-code.c"
#define INITIAL 0
#define SC_COMMENT 1
#define SC_LINE_COMMENT 2
#define SC_STRING 3
#define SC_CHARACTER 4
#define SC_RULE_ACTION 5
#define SC_SYMBOL_ACTION 6
#ifndef YY_NO_UNISTD_H
/* Special case for "unistd.h", since it is non-ANSI. We include it way
* down here because we want the user's section 1 to have been scanned first.
* The user has a chance to override it with an option.
*/
/* %if-c-only */
#include <unistd.h>
/* %endif */
/* %if-c++-only */
/* %endif */
#endif
#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif
/* %if-c-only Reentrant structure and macros (non-C++). */
/* %if-reentrant */
/* %if-c-only */
static int yy_init_globals (void );
/* %endif */
/* %if-reentrant */
/* %endif */
/* %endif End reentrant structures and macros. */
/* Accessor methods to globals.
These are made visible to non-reentrant scanners for convenience. */
int code_lex_destroy (void );
int code_get_debug (void );
void code_set_debug (int debug_flag );
YY_EXTRA_TYPE code_get_extra (void );
void code_set_extra (YY_EXTRA_TYPE user_defined );
FILE *code_get_in (void );
void code_set_in (FILE * in_str );
FILE *code_get_out (void );
void code_set_out (FILE * out_str );
yy_size_t code_get_leng (void );
char *code_get_text (void );
int code_get_lineno (void );
void code_set_lineno (int line_number );
/* %if-bison-bridge */
/* %endif */
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int code_wrap (void );
#else
extern int code_wrap (void );
#endif
#endif
/* %not-for-header */
/* %ok-for-header */
/* %endif */
#ifndef yytext_ptr
static void yy_flex_strncpy (char *,yyconst char *,int );
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * );
#endif
#ifndef YY_NO_INPUT
/* %if-c-only Standard (non-C++) definition */
/* %not-for-header */
#ifdef __cplusplus
static int yyinput (void );
#else
static int input (void );
#endif
/* %ok-for-header */
/* %endif */
#endif
/* %if-c-only */
/* %endif */
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif
/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* %if-c-only Standard (non-C++) definition */
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
#define ECHO do { if (fwrite( code_text, code_leng, 1, code_out )) {} } while (0)
/* %endif */
/* %if-c++-only C++ definition */
/* %endif */
#endif
/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
* is returned in "result".
*/
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
/* %% [5.0] fread()/read() definition of YY_INPUT goes here unless we're doing C++ \ */\
if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
{ \
int c = '*'; \
size_t n; \
for ( n = 0; n < max_size && \
(c = getc( code_in )) != EOF && c != '\n'; ++n ) \
buf[n] = (char) c; \
if ( c == '\n' ) \
buf[n++] = (char) c; \
if ( c == EOF && ferror( code_in ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
result = n; \
} \
else \
{ \
errno=0; \
while ( (result = fread(buf, 1, max_size, code_in))==0 && ferror(code_in)) \
{ \
if( errno != EINTR) \
{ \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
break; \
} \
errno=0; \
clearerr(code_in); \
} \
}\
\
/* %if-c++-only C++ definition \ */\
/* %endif */
#endif
/* No semi-colon after return; correct usage is to write "yyterminate();" -
* we don't want an extra ';' after the "return" because that will cause
* some compilers to complain about unreachable statements.
*/
#ifndef yyterminate
#define yyterminate() return YY_NULL
#endif
/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif
/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
/* %if-c-only */
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
/* %endif */
/* %if-c++-only */
/* %endif */
#endif
/* %if-tables-serialization structures and prototypes */
/* %not-for-header */
/* %ok-for-header */
/* %not-for-header */
/* %tables-yydmap generated elements */
/* %endif */
/* end tables serialization structures and prototypes */
/* %ok-for-header */
/* Default declaration of generated scanner - a define so the user can
* easily add parameters.
*/
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1
/* %if-c-only Standard (non-C++) definition */
extern int code_lex (void);
#define YY_DECL int code_lex (void)
/* %endif */
/* %if-c++-only C++ definition */
/* %endif */
#endif /* !YY_DECL */
/* Code executed at the beginning of each rule, after code_text and code_leng
* have been set up.
*/
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif
/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif
/* %% [6.0] YY_RULE_SETUP definition goes here */
#define YY_RULE_SETUP \
YY_USER_ACTION
/* %not-for-header */
/** The main scanner function which does all the work.
*/
YY_DECL
{
register yy_state_type yy_current_state;
register char *yy_cp, *yy_bp;
register int yy_act;
/* %% [7.0] user's declarations go here */
#line 96 "/Users/akim/src/gnu/bison/src/scan-code.l"
/* This scanner is special: it is invoked only once, henceforth
is expected to return only once. This initialization is
therefore done once per action to translate. */
aver (sc_context == SC_SYMBOL_ACTION
|| sc_context == SC_RULE_ACTION
|| sc_context == INITIAL);
BEGIN sc_context;
/*------------------------------------------------------------.
| Scanning a C comment. The initial '/ *' is already eaten. |
`------------------------------------------------------------*/
#line 976 "src/scan-code.c"
if ( !(yy_init) )
{
(yy_init) = 1;
#ifdef YY_USER_INIT
YY_USER_INIT;
#endif
if ( ! (yy_start) )
(yy_start) = 1; /* first start state */
if ( ! code_in )
/* %if-c-only */
code_in = stdin;
/* %endif */
/* %if-c++-only */
/* %endif */
if ( ! code_out )
/* %if-c-only */
code_out = stdout;
/* %endif */
/* %if-c++-only */
/* %endif */
if ( ! YY_CURRENT_BUFFER ) {
code_ensure_buffer_stack ();
YY_CURRENT_BUFFER_LVALUE =
code__create_buffer(code_in,YY_BUF_SIZE );
}
code__load_buffer_state( );
}
while ( 1 ) /* loops until end-of-file is reached */
{
/* %% [8.0] yymore()-related code goes here */
yy_cp = (yy_c_buf_p);
/* Support of code_text. */
*yy_cp = (yy_hold_char);
/* yy_bp points to the position in yy_ch_buf of the start of
* the current run.
*/
yy_bp = yy_cp;
/* %% [9.0] code to set up and find next match goes here */
yy_current_state = (yy_start);
yy_match:
do
{
register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)];
if ( yy_accept[yy_current_state] )
{
(yy_last_accepting_state) = yy_current_state;
(yy_last_accepting_cpos) = yy_cp;
}
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 91 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
++yy_cp;
}
while ( yy_current_state != 90 );
yy_cp = (yy_last_accepting_cpos);
yy_current_state = (yy_last_accepting_state);
yy_find_action:
/* %% [10.0] code to find the action number goes here */
yy_act = yy_accept[yy_current_state];
YY_DO_BEFORE_ACTION;
/* %% [11.0] code for code_lineno update goes here */
do_action: /* This label is used only to access EOF actions. */
/* %% [12.0] debug code goes here */
if ( code__flex_debug )
{
if ( yy_act == 0 )
fprintf( stderr, "--scanner backing up\n" );
else if ( yy_act < 18 )
fprintf( stderr, "--accepting rule at line %ld (\"%s\")\n",
(long)yy_rule_linenum[yy_act], code_text );
else if ( yy_act == 18 )
fprintf( stderr, "--accepting default rule (\"%s\")\n",
code_text );
else if ( yy_act == 19 )
fprintf( stderr, "--(end of buffer or a NUL)\n" );
else
fprintf( stderr, "--EOF (start condition %d)\n", YY_START );
}
switch ( yy_act )
{ /* beginning of action switch */
/* %% [13.0] actions go here */
case 0: /* must back up */
/* undo the effects of YY_DO_BEFORE_ACTION */
*yy_cp = (yy_hold_char);
yy_cp = (yy_last_accepting_cpos);
yy_current_state = (yy_last_accepting_state);
goto yy_find_action;
case 1:
/* rule 1 can match eol */
YY_RULE_SETUP
#line 114 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN sc_context;
YY_BREAK
/*--------------------------------------------------------------.
| Scanning a line comment. The initial '//' is already eaten. |
`--------------------------------------------------------------*/
case 2:
/* rule 2 can match eol */
YY_RULE_SETUP
#line 124 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN sc_context;
YY_BREAK
case 3:
/* rule 3 can match eol */
YY_RULE_SETUP
#line 125 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW;
YY_BREAK
/*--------------------------------------------.
| Scanning user-code characters and strings. |
`--------------------------------------------*/
case 4:
/* rule 4 can match eol */
YY_RULE_SETUP
#line 135 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW;
YY_BREAK
case 5:
YY_RULE_SETUP
#line 140 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN sc_context;
YY_BREAK
case 6:
YY_RULE_SETUP
#line 145 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN sc_context;
YY_BREAK
case 7:
YY_RULE_SETUP
#line 151 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN SC_CHARACTER;
YY_BREAK
case 8:
YY_RULE_SETUP
#line 152 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN SC_STRING;
YY_BREAK
case 9:
/* rule 9 can match eol */
YY_RULE_SETUP
#line 153 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN SC_COMMENT;
YY_BREAK
case 10:
/* rule 10 can match eol */
YY_RULE_SETUP
#line 154 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW; BEGIN SC_LINE_COMMENT;
YY_BREAK
case 11:
YY_RULE_SETUP
#line 156 "/Users/akim/src/gnu/bison/src/scan-code.l"
{
complain (loc, Wother, _("stray '%s'"), code_text);
obstack_escape (&obstack_for_string, code_text);
}
YY_BREAK
case 12:
YY_RULE_SETUP
#line 164 "/Users/akim/src/gnu/bison/src/scan-code.l"
{
ref_tail_fields = NULL;
handle_action_dollar (self->rule, code_text, *loc);
if (ref_tail_fields)
obstack_sgrow (&obstack_for_string, ref_tail_fields);
}
YY_BREAK
case 13:
YY_RULE_SETUP
#line 170 "/Users/akim/src/gnu/bison/src/scan-code.l"
{
ref_tail_fields = NULL;
handle_action_at (self->rule, code_text, *loc);
if (ref_tail_fields)
obstack_sgrow (&obstack_for_string, ref_tail_fields);
}
YY_BREAK
case 14:
YY_RULE_SETUP
#line 180 "/Users/akim/src/gnu/bison/src/scan-code.l"
{
const char *type_name = NULL;
fetch_type_name (code_text + 1, &type_name, *loc)[-1] = 0;
obstack_sgrow (&obstack_for_string, "]b4_dollar_dollar(");
obstack_quote (&obstack_for_string, type_name);
obstack_sgrow (&obstack_for_string, ")[");
self->is_value_used = true;
}
YY_BREAK
case 15:
YY_RULE_SETUP
#line 188 "/Users/akim/src/gnu/bison/src/scan-code.l"
{
obstack_sgrow (&obstack_for_string, "]b4_at_dollar[");
muscle_percent_define_ensure("locations", the_location, true);
}
YY_BREAK
/* Escape M4 quoting characters in C code. */
case 16:
YY_RULE_SETUP
#line 198 "/Users/akim/src/gnu/bison/src/scan-code.l"
obstack_escape (&obstack_for_string, code_text);
YY_BREAK
/* By default, grow the string obstack with the input. */
case 17:
/* rule 17 can match eol */
YY_RULE_SETUP
#line 201 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_GROW;
YY_BREAK
/* End of processing. */
case YY_STATE_EOF(INITIAL):
case YY_STATE_EOF(SC_COMMENT):
case YY_STATE_EOF(SC_LINE_COMMENT):
case YY_STATE_EOF(SC_STRING):
case YY_STATE_EOF(SC_CHARACTER):
case YY_STATE_EOF(SC_RULE_ACTION):
case YY_STATE_EOF(SC_SYMBOL_ACTION):
#line 204 "/Users/akim/src/gnu/bison/src/scan-code.l"
STRING_FINISH; return last_string;
YY_BREAK
case 18:
YY_RULE_SETUP
#line 207 "/Users/akim/src/gnu/bison/src/scan-code.l"
YY_FATAL_ERROR( "flex scanner jammed" );
YY_BREAK
#line 1250 "src/scan-code.c"
case YY_END_OF_BUFFER:
{
/* Amount of text matched not including the EOB char. */
int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
/* Undo the effects of YY_DO_BEFORE_ACTION. */
*yy_cp = (yy_hold_char);
YY_RESTORE_YY_MORE_OFFSET
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
{
/* We're scanning a new file or input source. It's
* possible that this happened because the user
* just pointed code_in at a new source and called
* code_lex(). If so, then we have to assure
* consistency between YY_CURRENT_BUFFER and our
* globals. Here is the right place to do so, because
* this is the first action (other than possibly a
* back-up) that will match for the new input source.
*/
(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
YY_CURRENT_BUFFER_LVALUE->yy_input_file = code_in;
YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
}
/* Note that here we test for yy_c_buf_p "<=" to the position
* of the first EOB in the buffer, since yy_c_buf_p will
* already have been incremented past the NUL character
* (since all states make transitions on EOB to the
* end-of-buffer state). Contrast this with the test
* in input().
*/
if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
{ /* This was really a NUL. */
yy_state_type yy_next_state;
(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
yy_current_state = yy_get_previous_state( );
/* Okay, we're now positioned to make the NUL
* transition. We couldn't have
* yy_get_previous_state() go ahead and do it
* for us because it doesn't know how to deal
* with the possibility of jamming (and we don't
* want to build jamming into it because then it
* will run more slowly).
*/
yy_next_state = yy_try_NUL_trans( yy_current_state );
yy_bp = (yytext_ptr) + YY_MORE_ADJ;
if ( yy_next_state )
{
/* Consume the NUL. */
yy_cp = ++(yy_c_buf_p);
yy_current_state = yy_next_state;
goto yy_match;
}
else
{
/* %% [14.0] code to do back-up for compressed tables and set up yy_cp goes here */
yy_cp = (yy_last_accepting_cpos);
yy_current_state = (yy_last_accepting_state);
goto yy_find_action;
}
}
else switch ( yy_get_next_buffer( ) )
{
case EOB_ACT_END_OF_FILE:
{
(yy_did_buffer_switch_on_eof) = 0;
if ( code_wrap( ) )
{
/* Note: because we've taken care in
* yy_get_next_buffer() to have set up
* code_text, we can now set up
* yy_c_buf_p so that if some total
* hoser (like flex itself) wants to
* call the scanner after we return the
* YY_NULL, it'll still work - another
* YY_NULL will get returned.
*/
(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
yy_act = YY_STATE_EOF(YY_START);
goto do_action;
}
else
{
if ( ! (yy_did_buffer_switch_on_eof) )
YY_NEW_FILE;
}
break;
}
case EOB_ACT_CONTINUE_SCAN:
(yy_c_buf_p) =
(yytext_ptr) + yy_amount_of_matched_text;
yy_current_state = yy_get_previous_state( );
yy_cp = (yy_c_buf_p);
yy_bp = (yytext_ptr) + YY_MORE_ADJ;
goto yy_match;
case EOB_ACT_LAST_MATCH:
(yy_c_buf_p) =
&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
yy_current_state = yy_get_previous_state( );
yy_cp = (yy_c_buf_p);
yy_bp = (yytext_ptr) + YY_MORE_ADJ;
goto yy_find_action;
}
break;
}
default:
YY_FATAL_ERROR(
"fatal flex scanner internal error--no action found" );
} /* end of action switch */
} /* end of scanning one token */
} /* end of code_lex */
/* %ok-for-header */
/* %if-c++-only */
/* %not-for-header */
/* %ok-for-header */
/* %endif */
/* yy_get_next_buffer - try to read in a new buffer
*
* Returns a code representing an action:
* EOB_ACT_LAST_MATCH -
* EOB_ACT_CONTINUE_SCAN - continue scanning from current position
* EOB_ACT_END_OF_FILE - end of file
*/
/* %if-c-only */
static int yy_get_next_buffer (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{
register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
register char *source = (yytext_ptr);
register int number_to_move, i;
int ret_val;
if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
YY_FATAL_ERROR(
"fatal flex scanner internal error--end of buffer missed" );
if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
{ /* Don't try to fill the buffer, so this is an EOF. */
if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
{
/* We matched a single character, the EOB, so
* treat this as a final EOF.
*/
return EOB_ACT_END_OF_FILE;
}
else
{
/* We matched some text prior to the EOB, first
* process it.
*/
return EOB_ACT_LAST_MATCH;
}
}
/* Try to read more data. */
/* First move last chars to start of buffer. */
number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1;
for ( i = 0; i < number_to_move; ++i )
*(dest++) = *(source++);
if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
/* don't do the read, it's not guaranteed to return an EOF,
* just force an EOF
*/
YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
else
{
yy_size_t num_to_read =
YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
while ( num_to_read <= 0 )
{ /* Not enough room in the buffer - grow it. */
/* just a shorter name for the current buffer */
YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
int yy_c_buf_p_offset =
(int) ((yy_c_buf_p) - b->yy_ch_buf);
if ( b->yy_is_our_buffer )
{
yy_size_t new_size = b->yy_buf_size * 2;
if ( new_size <= 0 )
b->yy_buf_size += b->yy_buf_size / 8;
else
b->yy_buf_size *= 2;
b->yy_ch_buf = (char *)
/* Include room in for 2 EOB chars. */
code_realloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 );
}
else
/* Can't grow it, we don't own it. */
b->yy_ch_buf = 0;
if ( ! b->yy_ch_buf )
YY_FATAL_ERROR(
"fatal error - scanner input buffer overflow" );
(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
number_to_move - 1;
}
if ( num_to_read > YY_READ_BUF_SIZE )
num_to_read = YY_READ_BUF_SIZE;
/* Read in more data. */
YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
(yy_n_chars), num_to_read );
YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
}
if ( (yy_n_chars) == 0 )
{
if ( number_to_move == YY_MORE_ADJ )
{
ret_val = EOB_ACT_END_OF_FILE;
code_restart(code_in );
}
else
{
ret_val = EOB_ACT_LAST_MATCH;
YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
YY_BUFFER_EOF_PENDING;
}
}
else
ret_val = EOB_ACT_CONTINUE_SCAN;
if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
/* Extend the array by 50%, plus the number we really need. */
yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) code_realloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size );
if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
}
(yy_n_chars) += number_to_move;
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
return ret_val;
}
/* yy_get_previous_state - get the state just before the EOB char was reached */
/* %if-c-only */
/* %not-for-header */
static yy_state_type yy_get_previous_state (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{
register yy_state_type yy_current_state;
register char *yy_cp;
/* %% [15.0] code to get the start state into yy_current_state goes here */
yy_current_state = (yy_start);
for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
{
/* %% [16.0] code to find the next state goes here */
register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 18);
if ( yy_accept[yy_current_state] )
{
(yy_last_accepting_state) = yy_current_state;
(yy_last_accepting_cpos) = yy_cp;
}
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 91 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
}
return yy_current_state;
}
/* yy_try_NUL_trans - try to make a transition on the NUL character
*
* synopsis
* next_state = yy_try_NUL_trans( current_state );
*/
/* %if-c-only */
static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state )
/* %endif */
/* %if-c++-only */
/* %endif */
{
register int yy_is_jam;
/* %% [17.0] code to find the next state, and perhaps do backing up, goes here */
register char *yy_cp = (yy_c_buf_p);
register YY_CHAR yy_c = 18;
if ( yy_accept[yy_current_state] )
{
(yy_last_accepting_state) = yy_current_state;
(yy_last_accepting_cpos) = yy_cp;
}
while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
{
yy_current_state = (int) yy_def[yy_current_state];
if ( yy_current_state >= 91 )
yy_c = yy_meta[(unsigned int) yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
yy_is_jam = (yy_current_state == 90);
return yy_is_jam ? 0 : yy_current_state;
}
/* %if-c-only */
/* %endif */
/* %if-c-only */
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput (void)
#else
static int input (void)
#endif
/* %endif */
/* %if-c++-only */
/* %endif */
{
int c;
*(yy_c_buf_p) = (yy_hold_char);
if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
{
/* yy_c_buf_p now points to the character we want to return.
* If this occurs *before* the EOB characters, then it's a
* valid NUL; if not, then we've hit the end of the buffer.
*/
if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
/* This was really a NUL. */
*(yy_c_buf_p) = '\0';
else
{ /* need more input */
yy_size_t offset = (yy_c_buf_p) - (yytext_ptr);
++(yy_c_buf_p);
switch ( yy_get_next_buffer( ) )
{
case EOB_ACT_LAST_MATCH:
/* This happens because yy_g_n_b()
* sees that we've accumulated a
* token and flags that we need to
* try matching the token before
* proceeding. But for input(),
* there's no matching to consider.
* So convert the EOB_ACT_LAST_MATCH
* to EOB_ACT_END_OF_FILE.
*/
/* Reset buffer status. */
code_restart(code_in );
/*FALLTHROUGH*/
case EOB_ACT_END_OF_FILE:
{
if ( code_wrap( ) )
return EOF;
if ( ! (yy_did_buffer_switch_on_eof) )
YY_NEW_FILE;
#ifdef __cplusplus
return yyinput();
#else
return input();
#endif
}
case EOB_ACT_CONTINUE_SCAN:
(yy_c_buf_p) = (yytext_ptr) + offset;
break;
}
}
}
c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */
*(yy_c_buf_p) = '\0'; /* preserve code_text */
(yy_hold_char) = *++(yy_c_buf_p);
/* %% [19.0] update BOL and code_lineno */
return c;
}
/* %if-c-only */
#endif /* ifndef YY_NO_INPUT */
/* %endif */
/** Immediately switch to a different input stream.
* @param input_file A readable stream.
*
* @note This function does not reset the start condition to @c INITIAL .
*/
/* %if-c-only */
void code_restart (FILE * input_file )
/* %endif */
/* %if-c++-only */
/* %endif */
{
if ( ! YY_CURRENT_BUFFER ){
code_ensure_buffer_stack ();
YY_CURRENT_BUFFER_LVALUE =
code__create_buffer(code_in,YY_BUF_SIZE );
}
code__init_buffer(YY_CURRENT_BUFFER,input_file );
code__load_buffer_state( );
}
/** Switch to a different input buffer.
* @param new_buffer The new input buffer.
*
*/
/* %if-c-only */
void code__switch_to_buffer (YY_BUFFER_STATE new_buffer )
/* %endif */
/* %if-c++-only */
/* %endif */
{
/* TODO. We should be able to replace this entire function body
* with
* code_pop_buffer_state();
* code_push_buffer_state(new_buffer);
*/
code_ensure_buffer_stack ();
if ( YY_CURRENT_BUFFER == new_buffer )
return;
if ( YY_CURRENT_BUFFER )
{
/* Flush out information for old buffer. */
*(yy_c_buf_p) = (yy_hold_char);
YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
}
YY_CURRENT_BUFFER_LVALUE = new_buffer;
code__load_buffer_state( );
/* We don't actually know whether we did this switch during
* EOF (code_wrap()) processing, but the only time this flag
* is looked at is after code_wrap() is called, so it's safe
* to go ahead and always set it.
*/
(yy_did_buffer_switch_on_eof) = 1;
}
/* %if-c-only */
static void code__load_buffer_state (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{
(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
code_in = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
(yy_hold_char) = *(yy_c_buf_p);
}
/** Allocate and initialize an input buffer state.
* @param file A readable stream.
* @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
*
* @return the allocated buffer state.
*/
/* %if-c-only */
YY_BUFFER_STATE code__create_buffer (FILE * file, int size )
/* %endif */
/* %if-c++-only */
/* %endif */
{
YY_BUFFER_STATE b;
b = (YY_BUFFER_STATE) code_alloc(sizeof( struct yy_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in code__create_buffer()" );
b->yy_buf_size = size;
/* yy_ch_buf has to be 2 characters longer than the size given because
* we need to put in 2 end-of-buffer characters.
*/
b->yy_ch_buf = (char *) code_alloc(b->yy_buf_size + 2 );
if ( ! b->yy_ch_buf )
YY_FATAL_ERROR( "out of dynamic memory in code__create_buffer()" );
b->yy_is_our_buffer = 1;
code__init_buffer(b,file );
return b;
}
/** Destroy the buffer.
* @param b a buffer created with code__create_buffer()
*
*/
/* %if-c-only */
void code__delete_buffer (YY_BUFFER_STATE b )
/* %endif */
/* %if-c++-only */
/* %endif */
{
if ( ! b )
return;
if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
if ( b->yy_is_our_buffer )
code_free((void *) b->yy_ch_buf );
code_free((void *) b );
}
/* Initializes or reinitializes a buffer.
* This function is sometimes called more than once on the same buffer,
* such as during a code_restart() or at EOF.
*/
/* %if-c-only */
static void code__init_buffer (YY_BUFFER_STATE b, FILE * file )
/* %endif */
/* %if-c++-only */
/* %endif */
{
int oerrno = errno;
code__flush_buffer(b );
b->yy_input_file = file;
b->yy_fill_buffer = 1;
/* If b is the current buffer, then code__init_buffer was _probably_
* called from code_restart() or through yy_get_next_buffer.
* In that case, we don't want to reset the lineno or column.
*/
if (b != YY_CURRENT_BUFFER){
b->yy_bs_lineno = 1;
b->yy_bs_column = 0;
}
/* %if-c-only */
b->yy_is_interactive = 0;
/* %endif */
/* %if-c++-only */
/* %endif */
errno = oerrno;
}
/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
* @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
*
*/
/* %if-c-only */
void code__flush_buffer (YY_BUFFER_STATE b )
/* %endif */
/* %if-c++-only */
/* %endif */
{
if ( ! b )
return;
b->yy_n_chars = 0;
/* We always need two end-of-buffer characters. The first causes
* a transition to the end-of-buffer state. The second causes
* a jam in that state.
*/
b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
b->yy_buf_pos = &b->yy_ch_buf[0];
b->yy_at_bol = 1;
b->yy_buffer_status = YY_BUFFER_NEW;
if ( b == YY_CURRENT_BUFFER )
code__load_buffer_state( );
}
/* %if-c-or-c++ */
/** Pushes the new state onto the stack. The new state becomes
* the current state. This function will allocate the stack
* if necessary.
* @param new_buffer The new state.
*
*/
/* %if-c-only */
void code_push_buffer_state (YY_BUFFER_STATE new_buffer )
/* %endif */
/* %if-c++-only */
/* %endif */
{
if (new_buffer == NULL)
return;
code_ensure_buffer_stack();
/* This block is copied from code__switch_to_buffer. */
if ( YY_CURRENT_BUFFER )
{
/* Flush out information for old buffer. */
*(yy_c_buf_p) = (yy_hold_char);
YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
}
/* Only push if top exists. Otherwise, replace top. */
if (YY_CURRENT_BUFFER)
(yy_buffer_stack_top)++;
YY_CURRENT_BUFFER_LVALUE = new_buffer;
/* copied from code__switch_to_buffer. */
code__load_buffer_state( );
(yy_did_buffer_switch_on_eof) = 1;
}
/* %endif */
/* %if-c-or-c++ */
/** Removes and deletes the top of the stack, if present.
* The next element becomes the new top.
*
*/
/* %if-c-only */
void code_pop_buffer_state (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{
if (!YY_CURRENT_BUFFER)
return;
code__delete_buffer(YY_CURRENT_BUFFER );
YY_CURRENT_BUFFER_LVALUE = NULL;
if ((yy_buffer_stack_top) > 0)
--(yy_buffer_stack_top);
if (YY_CURRENT_BUFFER) {
code__load_buffer_state( );
(yy_did_buffer_switch_on_eof) = 1;
}
}
/* %endif */
/* %if-c-or-c++ */
/* Allocates the stack if it does not exist.
* Guarantees space for at least one push.
*/
/* %if-c-only */
static void code_ensure_buffer_stack (void)
/* %endif */
/* %if-c++-only */
/* %endif */
{
yy_size_t num_to_alloc;
if (!(yy_buffer_stack)) {
/* First allocation is just for 2 elements, since we don't know if this
* scanner will even need a stack. We use 2 instead of 1 to avoid an
* immediate realloc on the next call.
*/
num_to_alloc = 1;
(yy_buffer_stack) = (struct yy_buffer_state**)code_alloc
(num_to_alloc * sizeof(struct yy_buffer_state*)
);
if ( ! (yy_buffer_stack) )
YY_FATAL_ERROR( "out of dynamic memory in code_ensure_buffer_stack()" );
memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
(yy_buffer_stack_max) = num_to_alloc;
(yy_buffer_stack_top) = 0;
return;
}
if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
/* Increase the buffer to prepare for a possible push. */
int grow_size = 8 /* arbitrary grow size */;
num_to_alloc = (yy_buffer_stack_max) + grow_size;
(yy_buffer_stack) = (struct yy_buffer_state**)code_realloc
((yy_buffer_stack),
num_to_alloc * sizeof(struct yy_buffer_state*)
);
if ( ! (yy_buffer_stack) )
YY_FATAL_ERROR( "out of dynamic memory in code_ensure_buffer_stack()" );
/* zero only the new slots.*/
memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
(yy_buffer_stack_max) = num_to_alloc;
}
}
/* %endif */
/* %if-c-only */
/** Setup the input buffer state to scan directly from a user-specified character buffer.
* @param base the character buffer
* @param size the size in bytes of the character buffer
*
* @return the newly allocated buffer state object.
*/
YY_BUFFER_STATE code__scan_buffer (char * base, yy_size_t size )
{
YY_BUFFER_STATE b;
if ( size < 2 ||
base[size-2] != YY_END_OF_BUFFER_CHAR ||
base[size-1] != YY_END_OF_BUFFER_CHAR )
/* They forgot to leave room for the EOB's. */
return 0;
b = (YY_BUFFER_STATE) code_alloc(sizeof( struct yy_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in code__scan_buffer()" );
b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
b->yy_buf_pos = b->yy_ch_buf = base;
b->yy_is_our_buffer = 0;
b->yy_input_file = 0;
b->yy_n_chars = b->yy_buf_size;
b->yy_is_interactive = 0;
b->yy_at_bol = 1;
b->yy_fill_buffer = 0;
b->yy_buffer_status = YY_BUFFER_NEW;
code__switch_to_buffer(b );
return b;
}
/* %endif */
/* %if-c-only */
/** Setup the input buffer state to scan a string. The next call to code_lex() will
* scan from a @e copy of @a str.
* @param yystr a NUL-terminated string to scan
*
* @return the newly allocated buffer state object.
* @note If you want to scan bytes that may contain NUL values, then use
* code__scan_bytes() instead.
*/
YY_BUFFER_STATE code__scan_string (yyconst char * yystr )
{
return code__scan_bytes(yystr,strlen(yystr) );
}
/* %endif */
/* %if-c-only */
/** Setup the input buffer state to scan the given bytes. The next call to code_lex() will
* scan from a @e copy of @a bytes.
* @param yybytes the byte buffer to scan
* @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
*
* @return the newly allocated buffer state object.
*/
YY_BUFFER_STATE code__scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len )
{
YY_BUFFER_STATE b;
char *buf;
yy_size_t n;
int i;
/* Get memory for full buffer, including space for trailing EOB's. */
n = _yybytes_len + 2;
buf = (char *) code_alloc(n );
if ( ! buf )
YY_FATAL_ERROR( "out of dynamic memory in code__scan_bytes()" );
for ( i = 0; i < _yybytes_len; ++i )
buf[i] = yybytes[i];
buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
b = code__scan_buffer(buf,n );
if ( ! b )
YY_FATAL_ERROR( "bad buffer in code__scan_bytes()" );
/* It's okay to grow etc. this buffer, and we should throw it
* away when we're done.
*/
b->yy_is_our_buffer = 1;
return b;
}
/* %endif */
#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif
/* %if-c-only */
static void yy_fatal_error (yyconst char* msg )
{
(void) fprintf( stderr, "%s\n", msg );
exit( YY_EXIT_FAILURE );
}
/* %endif */
/* %if-c++-only */
/* %endif */
/* Redefine yyless() so it works in section 3 code. */
#undef yyless
#define yyless(n) \
do \
{ \
/* Undo effects of setting up code_text. */ \
int yyless_macro_arg = (n); \
YY_LESS_LINENO(yyless_macro_arg);\
code_text[code_leng] = (yy_hold_char); \
(yy_c_buf_p) = code_text + yyless_macro_arg; \
(yy_hold_char) = *(yy_c_buf_p); \
*(yy_c_buf_p) = '\0'; \
code_leng = yyless_macro_arg; \
} \
while ( 0 )
/* Accessor methods (get/set functions) to struct members. */
/* %if-c-only */
/* %if-reentrant */
/* %endif */
/** Get the current line number.
*
*/
int code_get_lineno (void)
{
return code_lineno;
}
/** Get the input stream.
*
*/
FILE *code_get_in (void)
{
return code_in;
}
/** Get the output stream.
*
*/
FILE *code_get_out (void)
{
return code_out;
}
/** Get the length of the current token.
*
*/
yy_size_t code_get_leng (void)
{
return code_leng;
}
/** Get the current token.
*
*/
char *code_get_text (void)
{
return code_text;
}
/* %if-reentrant */
/* %endif */
/** Set the current line number.
* @param line_number
*
*/
void code_set_lineno (int line_number )
{
code_lineno = line_number;
}
/** Set the input stream. This does not discard the current
* input buffer.
* @param in_str A readable stream.
*
* @see code__switch_to_buffer
*/
void code_set_in (FILE * in_str )
{
code_in = in_str ;
}
void code_set_out (FILE * out_str )
{
code_out = out_str ;
}
int code_get_debug (void)
{
return code__flex_debug;
}
void code_set_debug (int bdebug )
{
code__flex_debug = bdebug ;
}
/* %endif */
/* %if-reentrant */
/* %if-bison-bridge */
/* %endif */
/* %endif if-c-only */
/* %if-c-only */
static int yy_init_globals (void)
{
/* Initialization is the same as for the non-reentrant scanner.
* This function is called from code_lex_destroy(), so don't allocate here.
*/
(yy_buffer_stack) = 0;
(yy_buffer_stack_top) = 0;
(yy_buffer_stack_max) = 0;
(yy_c_buf_p) = (char *) 0;
(yy_init) = 0;
(yy_start) = 0;
/* Defined in main.c */
#ifdef YY_STDINIT
code_in = stdin;
code_out = stdout;
#else
code_in = (FILE *) 0;
code_out = (FILE *) 0;
#endif
/* For future reference: Set errno on error, since we are called by
* code_lex_init()
*/
return 0;
}
/* %endif */
/* %if-c-only SNIP! this currently causes conflicts with the c++ scanner */
/* code_lex_destroy is for both reentrant and non-reentrant scanners. */
int code_lex_destroy (void)
{
/* Pop the buffer stack, destroying each element. */
while(YY_CURRENT_BUFFER){
code__delete_buffer(YY_CURRENT_BUFFER );
YY_CURRENT_BUFFER_LVALUE = NULL;
code_pop_buffer_state();
}
/* Destroy the stack itself. */
code_free((yy_buffer_stack) );
(yy_buffer_stack) = NULL;
/* Reset the globals. This is important in a non-reentrant scanner so the next time
* code_lex() is called, initialization will occur. */
yy_init_globals( );
/* %if-reentrant */
/* %endif */
return 0;
}
/* %endif */
/*
* Internal utility routines.
*/
#ifndef yytext_ptr
static void yy_flex_strncpy (char* s1, yyconst char * s2, int n )
{
register int i;
for ( i = 0; i < n; ++i )
s1[i] = s2[i];
}
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen (yyconst char * s )
{
register int n;
for ( n = 0; s[n]; ++n )
;
return n;
}
#endif
void *code_alloc (yy_size_t size )
{
return (void *) malloc( size );
}
void *code_realloc (void * ptr, yy_size_t size )
{
/* The cast to (char *) in the following accommodates both
* implementations that use char* generic pointers, and those
* that use void* generic pointers. It works with the latter
* because both ANSI C and C++ allow castless assignment from
* any pointer type to void*, and deal with argument conversions
* as though doing an assignment.
*/
return (void *) realloc( (char *) ptr, size );
}
void code_free (void * ptr )
{
free( (char *) ptr ); /* see code_realloc() for (char *) cast */
}
/* %if-tables-serialization definitions */
/* %define-yytables The name for this specific scanner's tables. */
#define YYTABLES_NAME "yytables"
/* %endif */
/* %ok-for-header */
#line 207 "/Users/akim/src/gnu/bison/src/scan-code.l"
static inline bool
is_dot_or_dash (char ch)
{
return ch == '.' || ch == '-';
}
static inline bool
contains_dot_or_dash (const char* p)
{
for (; *p; ++p)
if (is_dot_or_dash (*p))
return true;
return false;
}
/* Defines a variant of a symbolic name resolution. */
typedef struct
{
/* Index in symbol list. */
unsigned symbol_index;
/* Matched symbol id and loc. */
uniqstr id;
location loc;
/* Hiding named reference. */
named_ref* hidden_by;
/* Error flags. May contain zero (no errors) or
a combination of VARIANT_* values. */
unsigned err;
} variant;
/* Set when the variant refers to a symbol hidden
by an explicit symbol reference. */
#define VARIANT_HIDDEN (1 << 0)
/* Set when the variant refers to a symbol containing
dots or dashes. Will require explicit bracketing. */
#define VARIANT_BAD_BRACKETING (1 << 1)
/* Set when the variant refers to a symbol which is
not visible from current midrule. */
#define VARIANT_NOT_VISIBLE_FROM_MIDRULE (1 << 2)
static variant *variant_table = NULL;
static unsigned variant_table_size = 0;
static unsigned variant_count = 0;
static variant *
variant_table_grow (void)
{
++variant_count;
if (variant_count > variant_table_size)
{
while (variant_count > variant_table_size)
variant_table_size = 2 * variant_table_size + 3;
variant_table = xnrealloc (variant_table, variant_table_size,
sizeof *variant_table);
}
return &variant_table[variant_count - 1];
}
static void
variant_table_free (void)
{
free (variant_table);
variant_table = NULL;
variant_table_size = variant_count = 0;
}
static char *
find_prefix_end (const char *prefix, char *begin, char *end)
{
char *ptr = begin;
for (; *prefix && ptr != end; ++prefix, ++ptr)
if (*prefix != *ptr)
return 0;
if (*prefix)
return 0;
return ptr;
}
static variant *
variant_add (uniqstr id, location id_loc, unsigned symbol_index,
char *cp, char *cp_end, bool explicit_bracketing)
{
char *prefix_end;
prefix_end = find_prefix_end (id, cp, cp_end);
if (prefix_end &&
(prefix_end == cp_end ||
(!explicit_bracketing && is_dot_or_dash (*prefix_end))))
{
variant *r = variant_table_grow ();
r->symbol_index = symbol_index;
r->id = id;
r->loc = id_loc;
r->hidden_by = NULL;
r->err = 0;
return r;
}
else
return NULL;
}
static const char *
get_at_spec(unsigned symbol_index)
{
static char at_buf[20];
if (symbol_index == 0)
strcpy (at_buf, "$$");
else
snprintf (at_buf, sizeof at_buf, "$%u", symbol_index);
return at_buf;
}
static void
show_sub_message (warnings warning,
const char* cp, bool explicit_bracketing,
int midrule_rhs_index, char dollar_or_at,
unsigned indent, const variant *var)
{
const char *at_spec = get_at_spec (var->symbol_index);
if (var->err == 0)
complain_indent (&var->loc, warning, &indent,
_("refers to: %c%s at %s"), dollar_or_at,
var->id, at_spec);
else
{
static struct obstack msg_buf;
const char *tail = explicit_bracketing ? "" : cp + strlen (var->id);
const char *id;
location id_loc;
if (var->hidden_by)
{
id = var->hidden_by->id;
id_loc = var->hidden_by->loc;
}
else
{
id = var->id;
id_loc = var->loc;
}
/* Create the explanation message. */
obstack_init (&msg_buf);
obstack_printf (&msg_buf, _("possibly meant: %c"), dollar_or_at);
if (contains_dot_or_dash (id))
obstack_printf (&msg_buf, "[%s]", id);
else
obstack_sgrow (&msg_buf, id);
obstack_sgrow (&msg_buf, tail);
if (var->err & VARIANT_HIDDEN)
{
obstack_printf (&msg_buf, _(", hiding %c"), dollar_or_at);
if (contains_dot_or_dash (var->id))
obstack_printf (&msg_buf, "[%s]", var->id);
else
obstack_sgrow (&msg_buf, var->id);
obstack_sgrow (&msg_buf, tail);
}
obstack_printf (&msg_buf, _(" at %s"), at_spec);
if (var->err & VARIANT_NOT_VISIBLE_FROM_MIDRULE)
obstack_printf (&msg_buf,
_(", cannot be accessed from mid-rule action at $%d"),
midrule_rhs_index);
complain_indent (&id_loc, warning, &indent, "%s",
obstack_finish0 (&msg_buf));
obstack_free (&msg_buf, 0);
}
}
static void
show_sub_messages (warnings warning,
const char* cp, bool explicit_bracketing,
int midrule_rhs_index, char dollar_or_at,
unsigned indent)
{
unsigned i;
for (i = 0; i < variant_count; ++i)
show_sub_message (warning | silent,
cp, explicit_bracketing,
midrule_rhs_index, dollar_or_at,
indent, &variant_table[i]);
}
/* Returned from "parse_ref" when the reference
is inappropriate. */
#define INVALID_REF (INT_MIN)
/* Returned from "parse_ref" when the reference
points to LHS ($$) of the current rule or midrule. */
#define LHS_REF (INT_MIN + 1)
/* Parse named or positional reference. In case of positional
references, can return negative values for $-n "deep" stack
accesses. */
static long int
parse_ref (char *cp, symbol_list *rule, int rule_length,
int midrule_rhs_index, char *text, location text_loc,
char dollar_or_at)
{
symbol_list *l;
char *cp_end;
bool explicit_bracketing;
unsigned i;
unsigned valid_variants = 0;
unsigned valid_variant_index = 0;
if ('$' == *cp)
return LHS_REF;
if (c_isdigit (*cp) || (*cp == '-' && c_isdigit (* (cp + 1))))
{
long int num = strtol (cp, &cp, 10);
if (1 - INT_MAX + rule_length <= num && num <= rule_length)
return num;
else
{
complain (&text_loc, complaint, _("integer out of range: %s"),
quote (text));
return INVALID_REF;
}
}
if ('[' == *cp)
{
/* Ignore the brackets. */
char *p;
for (p = ++cp; *p != ']'; ++p)
continue;
cp_end = p;
explicit_bracketing = true;
}
else
{
/* Take all characters of the name. */
char* p;
for (p = cp; *p; ++p)
if (is_dot_or_dash (*p))
{
ref_tail_fields = p;
break;
}
for (p = cp; *p; ++p)
continue;
cp_end = p;
explicit_bracketing = false;
}
/* Add all relevant variants. */
{
unsigned symbol_index;
variant_count = 0;
for (symbol_index = 0, l = rule; !symbol_list_null (l);
++symbol_index, l = l->next)
{
variant *var;
if (l->content_type != SYMLIST_SYMBOL)
continue;
var = variant_add (l->content.sym->tag, l->sym_loc,
symbol_index, cp, cp_end, explicit_bracketing);
if (var && l->named_ref)
var->hidden_by = l->named_ref;
if (l->named_ref)
variant_add (l->named_ref->id, l->named_ref->loc,
symbol_index, cp, cp_end, explicit_bracketing);
}
}
/* Check errors. */
for (i = 0; i < variant_count; ++i)
{
variant *var = &variant_table[i];
unsigned symbol_index = var->symbol_index;
/* Check visibility from mid-rule actions. */
if (midrule_rhs_index != 0
&& (symbol_index == 0 || midrule_rhs_index < symbol_index))
var->err |= VARIANT_NOT_VISIBLE_FROM_MIDRULE;
/* Check correct bracketing. */
if (!explicit_bracketing && contains_dot_or_dash (var->id))
var->err |= VARIANT_BAD_BRACKETING;
/* Check using of hidden symbols. */
if (var->hidden_by)
var->err |= VARIANT_HIDDEN;
if (!var->err)
{
valid_variant_index = i;
++valid_variants;
}
}
switch (valid_variants)
{
case 0:
{
unsigned len = (explicit_bracketing || !ref_tail_fields) ?
cp_end - cp : ref_tail_fields - cp;
unsigned indent = 0;
complain_indent (&text_loc, complaint, &indent,
_("invalid reference: %s"), quote (text));
indent += SUB_INDENT;
if (len == 0)
{
location sym_loc = text_loc;
sym_loc.start.column += 1;
sym_loc.end = sym_loc.start;
complain_indent (&sym_loc, complaint, &indent,
_("syntax error after '%c', expecting integer, "
"letter, '_', '[', or '$'"),
dollar_or_at);
}
else if (midrule_rhs_index)
complain_indent (&rule->location, complaint, &indent,
_("symbol not found in production before $%d: "
"%.*s"),
midrule_rhs_index, len, cp);
else
complain_indent (&rule->location, complaint, &indent,
_("symbol not found in production: %.*s"),
len, cp);
if (variant_count > 0)
show_sub_messages (complaint,
cp, explicit_bracketing, midrule_rhs_index,
dollar_or_at, indent);
return INVALID_REF;
}
case 1:
{
unsigned indent = 0;
if (variant_count > 1)
{
complain_indent (&text_loc, Wother, &indent,
_("misleading reference: %s"), quote (text));
show_sub_messages (Wother,
cp, explicit_bracketing, midrule_rhs_index,
dollar_or_at, indent + SUB_INDENT);
}
{
unsigned symbol_index =
variant_table[valid_variant_index].symbol_index;
return (symbol_index == midrule_rhs_index) ? LHS_REF : symbol_index;
}
}
case 2:
default:
{
unsigned indent = 0;
complain_indent (&text_loc, complaint, &indent,
_("ambiguous reference: %s"), quote (text));
show_sub_messages (complaint,
cp, explicit_bracketing, midrule_rhs_index,
dollar_or_at, indent + SUB_INDENT);
return INVALID_REF;
}
}
}
/* Keeps track of the maximum number of semantic values to the left of
a handle (those referenced by $0, $-1, etc.) are required by the
semantic actions of this grammar. */
int max_left_semantic_context = 0;
/* If CP points to a typename (i.e., <.*?>), set TYPE_NAME to its
beginning (i.e., after the opening "<", and return the pointer
immediately after it. */
static
char *
fetch_type_name (char *cp, char const **type_name,
location dollar_loc)
{
if (*cp == '<')
{
*type_name = ++cp;
/* Series of non-'>' or "->". */
while (*cp != '>' || cp[-1] == '-')
++cp;
/* The '>' symbol will be later replaced by '\0'. Original
'text' is needed for error messages. */
++cp;
if (untyped_var_seen)
complain (&dollar_loc, complaint,
_("explicit type given in untyped grammar"));
tag_seen = true;
}
return cp;
}
/*------------------------------------------------------------------.
| TEXT is pointing to a wannabee semantic value (i.e., a '$'). |
| |
| Possible inputs: $[<TYPENAME>]($|integer) |
| |
| Output to OBSTACK_FOR_STRING a reference to this semantic value. |
`------------------------------------------------------------------*/
static void
handle_action_dollar (symbol_list *rule, char *text, location dollar_loc)
{
char const *type_name = NULL;
char *cp = text + 1;
symbol_list *effective_rule;
int effective_rule_length;
int n;
if (rule->midrule_parent_rule)
{
effective_rule = rule->midrule_parent_rule;
effective_rule_length = rule->midrule_parent_rhs_index - 1;
}
else
{
effective_rule = rule;
effective_rule_length = symbol_list_length (rule->next);
}
/* Get the type name if explicit. */
cp = fetch_type_name (cp, &type_name, dollar_loc);
n = parse_ref (cp, effective_rule, effective_rule_length,
rule->midrule_parent_rhs_index, text, dollar_loc, '$');
/* End type_name. */
if (type_name)
cp[-1] = '\0';
switch (n)
{
case INVALID_REF:
break;
case LHS_REF:
if (!type_name)
type_name = symbol_list_n_type_name_get (rule, 0);
if (!type_name)
{
if (union_seen | tag_seen)
{
if (rule->midrule_parent_rule)
complain (&dollar_loc, complaint,
_("$$ for the midrule at $%d of %s"
" has no declared type"),
rule->midrule_parent_rhs_index,
quote (effective_rule->content.sym->tag));
else
complain (&dollar_loc, complaint,
_("$$ of %s has no declared type"),
quote (rule->content.sym->tag));
}
else
untyped_var_seen = true;
}
obstack_sgrow (&obstack_for_string, "]b4_lhs_value(");
obstack_quote (&obstack_for_string, type_name);
obstack_sgrow (&obstack_for_string, ")[");
rule->action_props.is_value_used = true;
break;
default:
if (max_left_semantic_context < 1 - n)
max_left_semantic_context = 1 - n;
if (!type_name && 0 < n)
type_name = symbol_list_n_type_name_get (effective_rule, n);
if (!type_name)
{
if (union_seen | tag_seen)
complain (&dollar_loc, complaint,
_("$%s of %s has no declared type"), cp,
quote (effective_rule->content.sym->tag));
else
untyped_var_seen = true;
}
obstack_printf (&obstack_for_string,
"]b4_rhs_value(%d, %d, ", effective_rule_length, n);
obstack_quote (&obstack_for_string, type_name);
obstack_sgrow (&obstack_for_string, ")[");
if (0 < n)
symbol_list_n_get (effective_rule, n)->action_props.is_value_used =
true;
break;
}
}
/*------------------------------------------------------.
| TEXT is a location token (i.e., a '@...'). Output to |
| OBSTACK_FOR_STRING a reference to this location. |
`------------------------------------------------------*/
static void
handle_action_at (symbol_list *rule, char *text, location at_loc)
{
char *cp = text + 1;
symbol_list *effective_rule;
int effective_rule_length;
int n;
if (rule->midrule_parent_rule)
{
effective_rule = rule->midrule_parent_rule;
effective_rule_length = rule->midrule_parent_rhs_index - 1;
}
else
{
effective_rule = rule;
effective_rule_length = symbol_list_length (rule->next);
}
muscle_percent_define_ensure("locations", at_loc, true);
n = parse_ref (cp, effective_rule, effective_rule_length,
rule->midrule_parent_rhs_index, text, at_loc, '@');
switch (n)
{
case INVALID_REF:
break;
case LHS_REF:
obstack_sgrow (&obstack_for_string, "]b4_lhs_location[");
break;
default:
obstack_printf (&obstack_for_string, "]b4_rhs_location(%d, %d)[",
effective_rule_length, n);
break;
}
}
/*-------------------------.
| Initialize the scanner. |
`-------------------------*/
/* Translate the dollars and ats in \a self, in the context \a sc_context
(SC_RULE_ACTION, SC_SYMBOL_ACTION, INITIAL). */
static char const *
translate_action (code_props *self, int sc_context)
{
char *res;
static bool initialized = false;
if (!initialized)
{
obstack_init (&obstack_for_string);
code__flex_debug = 0;
initialized = true;
}
loc->start = loc->end = self->location.start;
code__switch_to_buffer (code__scan_string (self->code));
res = code_lex (self, sc_context);
code__delete_buffer (YY_CURRENT_BUFFER);
return res;
}
/*------------------------------------------------------------------------.
| Implementation of the public interface as documented in "scan-code.h". |
`------------------------------------------------------------------------*/
void
code_props_none_init (code_props *self)
{
*self = code_props_none;
}
code_props code_props_none = CODE_PROPS_NONE_INIT;
void
code_props_plain_init (code_props *self, char const *code,
location code_loc)
{
code_props_none_init (self);
self->kind = CODE_PROPS_PLAIN;
self->code = code;
self->location = code_loc;
}
void
code_props_symbol_action_init (code_props *self, char const *code,
location code_loc)
{
code_props_none_init (self);
self->kind = CODE_PROPS_SYMBOL_ACTION;
self->code = code;
self->location = code_loc;
}
void
code_props_rule_action_init (code_props *self, char const *code,
location code_loc, symbol_list *rule,
named_ref *name, bool is_predicate)
{
code_props_none_init (self);
self->kind = CODE_PROPS_RULE_ACTION;
self->code = code;
self->location = code_loc;
self->rule = rule;
self->named_ref = name;
self->is_predicate = is_predicate;
}
void
code_props_translate_code (code_props *self)
{
switch (self->kind)
{
case CODE_PROPS_NONE:
break;
case CODE_PROPS_PLAIN:
self->code = translate_action (self, INITIAL);
break;
case CODE_PROPS_SYMBOL_ACTION:
self->code = translate_action (self, SC_SYMBOL_ACTION);
break;
case CODE_PROPS_RULE_ACTION:
self->code = translate_action (self, SC_RULE_ACTION);
break;
}
}
void
code_scanner_last_string_free (void)
{
STRING_FREE;
}
void
code_scanner_free (void)
{
obstack_free (&obstack_for_string, 0);
variant_table_free ();
/* Reclaim Flex's buffers. */
code_lex_destroy ();
}