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lex.yy.c
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lex.yy.c
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#line 3 "lex.yy.c"
#define YY_INT_ALIGNED short int
/* A lexical scanner generated by flex */
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 6
#define YY_FLEX_SUBMINOR_VERSION 4
#if YY_FLEX_SUBMINOR_VERSION > 0
#define FLEX_BETA
#endif
/* First, we deal with platform-specific or compiler-specific issues. */
/* begin standard C headers. */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
/* end standard C headers. */
/* 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
#ifndef SIZE_MAX
#define SIZE_MAX (~(size_t)0)
#endif
#endif /* ! C99 */
#endif /* ! FLEXINT_H */
/* begin standard C++ headers. */
/* TODO: this is always defined, so inline it */
#define yyconst const
#if defined(__GNUC__) && __GNUC__ >= 3
#define yynoreturn __attribute__((__noreturn__))
#else
#define yynoreturn
#endif
/* Returned upon end-of-file. */
#define YY_NULL 0
/* Promotes a possibly negative, possibly signed char to an
* integer in range [0..255] for use as an array index.
*/
#define YY_SC_TO_UI(c) ((YY_CHAR) (c))
/* 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 yyrestart( yyin )
#define YY_END_OF_BUFFER_CHAR 0
/* Size of default input buffer. */
#ifndef YY_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k.
* Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
* Ditto for the __ia64__ case accordingly.
*/
#define YY_BUF_SIZE 32768
#else
#define YY_BUF_SIZE 16384
#endif /* __ia64__ */
#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
extern int yyleng;
extern FILE *yyin, *yyout;
#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
/* Note: We specifically omit the test for yy_rule_can_match_eol because it requires
* access to the local variable yy_act. Since yyless() is a macro, it would break
* existing scanners that call yyless() from OUTSIDE yylex.
* One obvious solution it to make yy_act a global. I tried that, and saw
* a 5% performance hit in a non-yylineno scanner, because yy_act is
* normally declared as a register variable-- so it is not worth it.
*/
#define YY_LESS_LINENO(n) \
do { \
int yyl;\
for ( yyl = n; yyl < yyleng; ++yyl )\
if ( yytext[yyl] == '\n' )\
--yylineno;\
}while(0)
#define YY_LINENO_REWIND_TO(dst) \
do {\
const char *p;\
for ( p = yy_cp-1; p >= (dst); --p)\
if ( *p == '\n' )\
--yylineno;\
}while(0)
/* Return all but the first "n" matched characters back to the input stream. */
#define yyless(n) \
do \
{ \
/* Undo effects of setting up yytext. */ \
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 yytext 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
{
FILE *yy_input_file;
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.
*/
int yy_buf_size;
/* Number of characters read into yy_ch_buf, not including EOB
* characters.
*/
int 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 yyrestart()), so that the user can continue scanning by
* just pointing yyin at a new input file.
*/
#define YY_BUFFER_EOF_PENDING 2
};
#endif /* !YY_STRUCT_YY_BUFFER_STATE */
/* 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 = NULL; /**< Stack as an array. */
/* 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)]
/* yy_hold_char holds the character lost when yytext is formed. */
static char yy_hold_char;
static int yy_n_chars; /* number of characters read into yy_ch_buf */
int yyleng;
/* Points to current character in buffer. */
static char *yy_c_buf_p = NULL;
static int yy_init = 0; /* whether we need to initialize */
static int yy_start = 0; /* start state number */
/* Flag which is used to allow yywrap()'s to do buffer switches
* instead of setting up a fresh yyin. A bit of a hack ...
*/
static int yy_did_buffer_switch_on_eof;
void yyrestart ( FILE *input_file );
void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer );
YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size );
void yy_delete_buffer ( YY_BUFFER_STATE b );
void yy_flush_buffer ( YY_BUFFER_STATE b );
void yypush_buffer_state ( YY_BUFFER_STATE new_buffer );
void yypop_buffer_state ( void );
static void yyensure_buffer_stack ( void );
static void yy_load_buffer_state ( void );
static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file );
#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER )
YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size );
YY_BUFFER_STATE yy_scan_string ( const char *yy_str );
YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len );
void *yyalloc ( yy_size_t );
void *yyrealloc ( void *, yy_size_t );
void yyfree ( void * );
#define yy_new_buffer yy_create_buffer
#define yy_set_interactive(is_interactive) \
{ \
if ( ! YY_CURRENT_BUFFER ){ \
yyensure_buffer_stack (); \
YY_CURRENT_BUFFER_LVALUE = \
yy_create_buffer( yyin, YY_BUF_SIZE ); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
}
#define yy_set_bol(at_bol) \
{ \
if ( ! YY_CURRENT_BUFFER ){\
yyensure_buffer_stack (); \
YY_CURRENT_BUFFER_LVALUE = \
yy_create_buffer( yyin, YY_BUF_SIZE ); \
} \
YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
}
#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
/* Begin user sect3 */
typedef flex_uint8_t YY_CHAR;
FILE *yyin = NULL, *yyout = NULL;
typedef int yy_state_type;
extern int yylineno;
int yylineno = 1;
extern char *yytext;
#ifdef yytext_ptr
#undef yytext_ptr
#endif
#define yytext_ptr yytext
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 yynoreturn yy_fatal_error ( const char* msg );
/* Done after the current pattern has been matched and before the
* corresponding action - sets up yytext.
*/
#define YY_DO_BEFORE_ACTION \
(yytext_ptr) = yy_bp; \
yyleng = (int) (yy_cp - yy_bp); \
(yy_hold_char) = *yy_cp; \
*yy_cp = '\0'; \
(yy_c_buf_p) = yy_cp;
#define YY_NUM_RULES 60
#define YY_END_OF_BUFFER 61
/* 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 const flex_int16_t yy_accept[117] =
{ 0,
0, 0, 0, 0, 45, 45, 61, 59, 57, 56,
58, 22, 43, 5, 59, 23, 24, 3, 1, 29,
2, 4, 46, 55, 9, 14, 8, 54, 27, 28,
54, 54, 54, 54, 54, 54, 54, 54, 54, 54,
25, 59, 26, 49, 50, 51, 45, 44, 13, 19,
20, 17, 6, 15, 7, 16, 48, 53, 18, 0,
46, 11, 12, 10, 54, 54, 54, 54, 54, 54,
54, 31, 54, 54, 54, 54, 54, 54, 54, 21,
49, 52, 45, 53, 47, 54, 54, 54, 54, 33,
36, 54, 54, 54, 54, 54, 54, 39, 32, 54,
54, 54, 54, 54, 40, 35, 54, 41, 37, 30,
54, 54, 34, 42, 38, 0
} ;
static const YY_CHAR yy_ec[256] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 4, 5, 6, 1, 1, 7, 8, 1, 9,
10, 11, 12, 13, 14, 15, 16, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 1, 18, 19,
20, 21, 1, 1, 22, 22, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
23, 1, 24, 1, 1, 1, 25, 26, 22, 27,
28, 29, 30, 31, 32, 22, 22, 33, 22, 34,
35, 36, 22, 37, 38, 39, 40, 41, 42, 22,
22, 22, 43, 44, 45, 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 const YY_CHAR yy_meta[46] =
{ 0,
1, 1, 2, 1, 1, 3, 1, 1, 1, 1,
4, 1, 1, 1, 1, 1, 5, 1, 1, 1,
1, 5, 1, 1, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 1, 1, 1
} ;
static const flex_int16_t yy_base[124] =
{ 0,
0, 0, 43, 44, 189, 188, 193, 196, 196, 196,
196, 172, 196, 171, 182, 196, 196, 169, 36, 196,
37, 42, 35, 196, 168, 167, 166, 168, 196, 196,
32, 42, 43, 48, 44, 46, 47, 52, 49, 54,
196, 140, 196, 0, 196, 167, 0, 196, 196, 196,
196, 196, 196, 196, 196, 196, 196, 0, 196, 165,
55, 196, 196, 196, 0, 164, 56, 62, 63, 66,
70, 163, 71, 73, 75, 76, 77, 80, 86, 196,
0, 196, 0, 0, 162, 78, 81, 82, 91, 161,
160, 85, 87, 89, 98, 105, 106, 156, 152, 107,
108, 111, 112, 114, 148, 146, 113, 128, 127, 126,
117, 116, 125, 123, 121, 196, 151, 156, 132, 161,
166, 171, 131
} ;
static const flex_int16_t yy_def[124] =
{ 0,
116, 1, 117, 117, 118, 118, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 119, 116, 116,
119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
116, 116, 116, 120, 116, 116, 121, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 122, 116, 116,
116, 116, 116, 116, 123, 119, 119, 119, 119, 119,
119, 119, 119, 119, 119, 119, 119, 119, 119, 116,
120, 116, 121, 122, 116, 119, 119, 119, 119, 119,
119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
119, 119, 119, 119, 119, 119, 119, 119, 119, 119,
119, 119, 119, 119, 119, 0, 116, 116, 116, 116,
116, 116, 116
} ;
static const flex_int16_t yy_nxt[242] =
{ 0,
8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21, 8, 22, 23, 24, 25, 26,
27, 28, 29, 30, 28, 31, 28, 32, 33, 28,
28, 34, 28, 28, 28, 35, 36, 37, 38, 28,
39, 40, 41, 42, 43, 45, 45, 53, 65, 60,
55, 61, 57, 46, 46, 54, 56, 58, 65, 65,
65, 59, 65, 65, 65, 65, 67, 69, 65, 60,
65, 61, 65, 75, 68, 70, 72, 71, 65, 65,
74, 73, 65, 78, 79, 76, 65, 65, 77, 65,
86, 65, 65, 65, 65, 88, 65, 65, 65, 87,
89, 65, 65, 65, 92, 65, 90, 65, 99, 91,
98, 96, 94, 93, 65, 101, 95, 97, 102, 100,
104, 65, 65, 65, 65, 105, 103, 65, 65, 65,
65, 106, 65, 65, 108, 65, 66, 65, 107, 65,
113, 65, 65, 65, 65, 115, 109, 112, 111, 110,
114, 44, 44, 44, 44, 44, 47, 47, 47, 47,
47, 81, 65, 81, 65, 81, 83, 83, 65, 83,
83, 84, 65, 84, 84, 84, 65, 65, 85, 65,
65, 85, 82, 80, 65, 64, 63, 62, 52, 51,
50, 49, 116, 48, 48, 7, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116
} ;
static const flex_int16_t yy_chk[242] =
{ 0,
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, 3, 4, 19, 31, 23,
21, 23, 22, 3, 4, 19, 21, 22, 32, 33,
35, 22, 36, 37, 34, 39, 31, 33, 38, 61,
40, 61, 67, 36, 32, 33, 34, 33, 68, 69,
35, 34, 70, 39, 40, 37, 71, 73, 38, 74,
67, 75, 76, 77, 86, 69, 78, 87, 88, 68,
70, 92, 79, 93, 74, 94, 71, 89, 87, 73,
86, 78, 76, 75, 95, 89, 77, 79, 92, 88,
94, 96, 97, 100, 101, 95, 93, 102, 103, 107,
104, 96, 112, 111, 100, 123, 119, 115, 97, 114,
107, 113, 110, 109, 108, 112, 101, 104, 103, 102,
111, 117, 117, 117, 117, 117, 118, 118, 118, 118,
118, 120, 106, 120, 105, 120, 121, 121, 99, 121,
121, 122, 98, 122, 122, 122, 91, 90, 85, 72,
66, 60, 46, 42, 28, 27, 26, 25, 18, 15,
14, 12, 7, 6, 5, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
116
} ;
/* Table of booleans, true if rule could match eol. */
static const flex_int32_t yy_rule_can_match_eol[61] =
{ 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0,
0, };
static yy_state_type yy_last_accepting_state;
static char *yy_last_accepting_cpos;
extern int yy_flex_debug;
int yy_flex_debug = 0;
/* 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 *yytext;
#line 1 "compiler_hw3.l"
/* Definition section */
#line 3 "compiler_hw3.l"
#include "y.tab.h" /* header file generated by bison */
extern YYSTYPE yylval; //YYSTYPE
extern void dump_symbol(int);
extern int dump_flag;
extern void semantic_error(char [], int);
extern int error_flag;
extern char sem_error_msg[100];
#define BUF_SIZE 256
char buf[BUF_SIZE];
/* This macro is used to record code line */
#define CONCAT { strncat(buf, yytext, BUF_SIZE - strlen(buf) - 1); }
int while_label = 0;
#line 581 "lex.yy.c"
/* Define regular expression label */
/* Rules section */
#line 585 "lex.yy.c"
#define INITIAL 0
#define COMMENT 1
#define STRING_STATE 2
#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.
*/
#include <unistd.h>
#endif
#ifndef YY_EXTRA_TYPE
#define YY_EXTRA_TYPE void *
#endif
static int yy_init_globals ( void );
/* Accessor methods to globals.
These are made visible to non-reentrant scanners for convenience. */
int yylex_destroy ( void );
int yyget_debug ( void );
void yyset_debug ( int debug_flag );
YY_EXTRA_TYPE yyget_extra ( void );
void yyset_extra ( YY_EXTRA_TYPE user_defined );
FILE *yyget_in ( void );
void yyset_in ( FILE * _in_str );
FILE *yyget_out ( void );
void yyset_out ( FILE * _out_str );
int yyget_leng ( void );
char *yyget_text ( void );
int yyget_lineno ( void );
void yyset_lineno ( int _line_number );
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int yywrap ( void );
#else
extern int yywrap ( void );
#endif
#endif
#ifndef YY_NO_UNPUT
static void yyunput ( int c, char *buf_ptr );
#endif
#ifndef yytext_ptr
static void yy_flex_strncpy ( char *, const char *, int );
#endif
#ifdef YY_NEED_STRLEN
static int yy_flex_strlen ( const char * );
#endif
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int yyinput ( void );
#else
static int input ( void );
#endif
#endif
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#ifdef __ia64__
/* On IA-64, the buffer size is 16k, not 8k */
#define YY_READ_BUF_SIZE 16384
#else
#define YY_READ_BUF_SIZE 8192
#endif /* __ia64__ */
#endif
/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
#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) \
if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
{ \
int c = '*'; \
int n; \
for ( n = 0; n < max_size && \
(c = getc( yyin )) != EOF && c != '\n'; ++n ) \
buf[n] = (char) c; \
if ( c == '\n' ) \
buf[n++] = (char) c; \
if ( c == EOF && ferror( yyin ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
result = n; \
} \
else \
{ \
errno=0; \
while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \
{ \
if( errno != EINTR) \
{ \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
break; \
} \
errno=0; \
clearerr(yyin); \
} \
}\
\
#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
#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
#endif
/* end tables serialization structures and prototypes */
/* Default declaration of generated scanner - a define so the user can
* easily add parameters.
*/
#ifndef YY_DECL
#define YY_DECL_IS_OURS 1
extern int yylex (void);
#define YY_DECL int yylex (void)
#endif /* !YY_DECL */
/* Code executed at the beginning of each rule, after yytext and yyleng
* 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 /*LINTED*/break;
#endif
#define YY_RULE_SETUP \
YY_USER_ACTION
/** The main scanner function which does all the work.
*/
YY_DECL
{
yy_state_type yy_current_state;
char *yy_cp, *yy_bp;
int yy_act;
if ( !(yy_init) )
{
(yy_init) = 1;
#ifdef YY_USER_INIT
YY_USER_INIT;
#endif
if ( ! (yy_start) )
(yy_start) = 1; /* first start state */
if ( ! yyin )
yyin = stdin;
if ( ! yyout )
yyout = stdout;
if ( ! YY_CURRENT_BUFFER ) {
yyensure_buffer_stack ();
YY_CURRENT_BUFFER_LVALUE =
yy_create_buffer( yyin, YY_BUF_SIZE );
}
yy_load_buffer_state( );
}
{
#line 34 "compiler_hw3.l"
#line 37 "compiler_hw3.l"
/* Arithmetic */
#line 809 "lex.yy.c"
while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */
{
yy_cp = (yy_c_buf_p);
/* Support of yytext. */
*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;
yy_current_state = (yy_start);
yy_match:
do
{
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 >= 117 )
yy_c = yy_meta[yy_c];
}
yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
++yy_cp;
}
while ( yy_base[yy_current_state] != 196 );
yy_find_action:
yy_act = yy_accept[yy_current_state];
if ( yy_act == 0 )
{ /* have to back up */
yy_cp = (yy_last_accepting_cpos);
yy_current_state = (yy_last_accepting_state);
yy_act = yy_accept[yy_current_state];
}
YY_DO_BEFORE_ACTION;
if ( yy_act != YY_END_OF_BUFFER && yy_rule_can_match_eol[yy_act] )
{
int yyl;
for ( yyl = 0; yyl < yyleng; ++yyl )
if ( yytext[yyl] == '\n' )
yylineno++;
;
}
do_action: /* This label is used only to access EOF actions. */
switch ( yy_act )
{ /* beginning of action switch */
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:
YY_RULE_SETUP
#line 38 "compiler_hw3.l"
{ yylval.atom.string_val = "+"; CONCAT; return ADD; }
YY_BREAK
case 2:
YY_RULE_SETUP
#line 39 "compiler_hw3.l"
{ yylval.atom.string_val = "-"; CONCAT; return SUB; }
YY_BREAK
case 3:
YY_RULE_SETUP
#line 40 "compiler_hw3.l"
{ yylval.atom.string_val = "*"; CONCAT; return MUL; }
YY_BREAK
case 4:
YY_RULE_SETUP
#line 41 "compiler_hw3.l"
{ yylval.atom.string_val = "/"; CONCAT; return DIV; }
YY_BREAK
case 5:
YY_RULE_SETUP
#line 42 "compiler_hw3.l"
{ yylval.atom.string_val = "%"; CONCAT; return MOD; }
YY_BREAK
case 6:
YY_RULE_SETUP
#line 43 "compiler_hw3.l"
{ yylval.atom.string_val = "++"; CONCAT; return INC; }
YY_BREAK
case 7:
YY_RULE_SETUP
#line 44 "compiler_hw3.l"
{ yylval.atom.string_val = "--"; CONCAT; return DEC; }
YY_BREAK
/* Relational */
case 8:
YY_RULE_SETUP
#line 47 "compiler_hw3.l"
{ yylval.atom.string_val = ">"; CONCAT; return MT; }
YY_BREAK
case 9:
YY_RULE_SETUP
#line 48 "compiler_hw3.l"
{ yylval.atom.string_val = "<"; CONCAT; return LT; }
YY_BREAK
case 10:
YY_RULE_SETUP
#line 49 "compiler_hw3.l"
{ yylval.atom.string_val = ">="; CONCAT; return MTE; }
YY_BREAK
case 11:
YY_RULE_SETUP
#line 50 "compiler_hw3.l"
{ yylval.atom.string_val = "<="; CONCAT; return LTE; }
YY_BREAK
case 12:
YY_RULE_SETUP
#line 51 "compiler_hw3.l"
{ yylval.atom.string_val = "=="; CONCAT; return EQ; }
YY_BREAK
case 13:
YY_RULE_SETUP
#line 52 "compiler_hw3.l"
{ yylval.atom.string_val = "!="; CONCAT; return NE; }
YY_BREAK
/* Assignment */
case 14:
YY_RULE_SETUP
#line 55 "compiler_hw3.l"
{ CONCAT; return ASGN; }
YY_BREAK
case 15:
YY_RULE_SETUP
#line 56 "compiler_hw3.l"
{ yylval.atom.string_val = "+="; CONCAT; return ADDASGN; }
YY_BREAK
case 16:
YY_RULE_SETUP
#line 57 "compiler_hw3.l"
{ yylval.atom.string_val = "-="; CONCAT; return SUBASGN; }
YY_BREAK
case 17:
YY_RULE_SETUP
#line 58 "compiler_hw3.l"
{ yylval.atom.string_val = "*="; CONCAT; return MULASGN; }
YY_BREAK
case 18:
YY_RULE_SETUP
#line 59 "compiler_hw3.l"
{ yylval.atom.string_val = "/="; CONCAT; return DIVASGN; }
YY_BREAK
case 19:
YY_RULE_SETUP
#line 60 "compiler_hw3.l"
{ yylval.atom.string_val = "%="; CONCAT; return MODASGN; }
YY_BREAK
/* Logical */
case 20:
YY_RULE_SETUP
#line 63 "compiler_hw3.l"
{ yylval.atom.string_val = "&&"; CONCAT; return AND; }
YY_BREAK
case 21:
YY_RULE_SETUP
#line 64 "compiler_hw3.l"
{ yylval.atom.string_val = "||"; CONCAT; return OR; }
YY_BREAK
case 22:
YY_RULE_SETUP
#line 65 "compiler_hw3.l"
{ yylval.atom.string_val = "!"; CONCAT; return NOT; }
YY_BREAK
/* Delimiters */
case 23:
YY_RULE_SETUP
#line 68 "compiler_hw3.l"
{ yylval.atom.string_val = "("; CONCAT; return LB; }
YY_BREAK
case 24:
YY_RULE_SETUP
#line 69 "compiler_hw3.l"
{ yylval.atom.string_val = ")"; CONCAT; return RB; }
YY_BREAK
case 25:
YY_RULE_SETUP