do-lexer.cpp File Reference

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <ctype.h>
#include <assert.h>
#include "do-syntax.h"
#include <unistd.h>
Include dependency graph for do-lexer.cpp:

Classes

struct  yy_buffer_state
struct  yy_trans_info

Defines

#define YY_INT_ALIGNED   short int
#define yy_create_buffer   do_create_buffer
#define yy_delete_buffer   do_delete_buffer
#define yy_flex_debug   do_flex_debug
#define yy_init_buffer   do_init_buffer
#define yy_flush_buffer   do_flush_buffer
#define yy_load_buffer_state   do_load_buffer_state
#define yy_switch_to_buffer   do_switch_to_buffer
#define yyin   doin
#define yyleng   doleng
#define yylex   dolex
#define yylineno   dolineno
#define yyout   doout
#define yyrestart   dorestart
#define yytext   dotext
#define yywrap   dowrap
#define yyalloc   doalloc
#define yyrealloc   dorealloc
#define yyfree   dofree
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION   2
#define YY_FLEX_MINOR_VERSION   5
#define YY_FLEX_SUBMINOR_VERSION   35
#define FLEX_BETA
#define yyconst
#define YY_NULL   0
#define YY_SC_TO_UI(c)   ((unsigned int) (unsigned char) c)
#define BEGIN   (yy_start) = 1 + 2 *
#define YY_START   (((yy_start) - 1) / 2)
#define YYSTATE   YY_START
#define YY_STATE_EOF(state)   (YY_END_OF_BUFFER + state + 1)
#define YY_NEW_FILE   dorestart(doin )
#define YY_END_OF_BUFFER_CHAR   0
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
#define EOB_ACT_CONTINUE_SCAN   0
#define EOB_ACT_END_OF_FILE   1
#define EOB_ACT_LAST_MATCH   2
#define YY_LESS_LINENO(n)
#define yyless(n)
#define unput(c)   yyunput( c, (yytext_ptr) )
#define YY_BUFFER_NEW   0
#define YY_BUFFER_NORMAL   1
#define YY_BUFFER_EOF_PENDING   2
#define YY_CURRENT_BUFFER
#define YY_CURRENT_BUFFER_LVALUE   (yy_buffer_stack)[(yy_buffer_stack_top)]
#define YY_FLUSH_BUFFER   do_flush_buffer(YY_CURRENT_BUFFER )
#define yy_new_buffer   do_create_buffer
#define yy_set_interactive(is_interactive)
#define yy_set_bol(at_bol)
#define YY_AT_BOL()   (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
#define yytext_ptr   dotext
#define YY_DO_BEFORE_ACTION
#define YY_NUM_RULES   31
#define YY_END_OF_BUFFER   32
#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
#define YYSTYPE   char*
#define INITIAL   0
#define YY_RULE_SETUP   YY_USER_ACTION
#define yyless(n)
#define YYTABLES_NAME   "yytables"

Typedefs

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
typedef struct yy_buffer_state * YY_BUFFER_STATE
typedef size_t yy_size_t
typedef unsigned char YY_CHAR
typedef int yy_state_type

Functions

void dorestart (FILE *input_file)
void do_switch_to_buffer (YY_BUFFER_STATE new_buffer)
YY_BUFFER_STATE do_create_buffer (FILE *file, int size)
void do_delete_buffer (YY_BUFFER_STATE b)
void do_flush_buffer (YY_BUFFER_STATE b)
void dopush_buffer_state (YY_BUFFER_STATE new_buffer)
void dopop_buffer_state (void)
YY_BUFFER_STATE do_scan_buffer (char *base, yy_size_t size)
YY_BUFFER_STATE do_scan_string (yyconst char *yy_str)
YY_BUFFER_STATE do_scan_bytes (yyconst char *bytes, int len)
void * doalloc (yy_size_t)
void * dorealloc (void *, yy_size_t)
void dofree (void *)
int dolex_destroy (void)
int doget_debug (void)
void doset_debug (int debug_flag)
YY_EXTRA_TYPE doget_extra (void)
void doset_extra (YY_EXTRA_TYPE user_defined)
FILE * doget_in (void)
void doset_in (FILE *in_str)
FILE * doget_out (void)
void doset_out (FILE *out_str)
int doget_leng (void)
char * doget_text (void)
int doget_lineno (void)
void doset_lineno (int line_number)
int dowrap (void)
void doerror (const char *text)

Variables

int doleng
FILE * doin = (FILE *) 0
FILE * doout = (FILE *) 0
int dolineno = 1
char * dotext
int do_flex_debug = 0

Define Documentation

#define BEGIN   (yy_start) = 1 + 2 *
#define EOB_ACT_CONTINUE_SCAN   0
#define EOB_ACT_END_OF_FILE   1
#define EOB_ACT_LAST_MATCH   2
#define FLEX_BETA
#define FLEX_SCANNER
#define INITIAL   0
#define REJECT   reject_used_but_not_detected
#define unput ( c   )     yyunput( c, (yytext_ptr) )
 
#define YY_AT_BOL (  )     (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
#define YY_BUFFER_EOF_PENDING   2
#define YY_BUFFER_NEW   0
#define YY_BUFFER_NORMAL   1
#define yy_create_buffer   do_create_buffer
#define YY_CURRENT_BUFFER
Value:
( (yy_buffer_stack) \
                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
                          : NULL)
#define YY_CURRENT_BUFFER_LVALUE   (yy_buffer_stack)[(yy_buffer_stack_top)]
#define yy_delete_buffer   do_delete_buffer
#define YY_DO_BEFORE_ACTION
Value:
(yytext_ptr) = yy_bp; \
        doleng = (size_t) (yy_cp - yy_bp); \
        (yy_hold_char) = *yy_cp; \
        *yy_cp = '\0'; \
        (yy_c_buf_p) = yy_cp;
#define YY_END_OF_BUFFER   32
#define YY_END_OF_BUFFER_CHAR   0
#define yy_flex_debug   do_flex_debug
#define YY_FLEX_MAJOR_VERSION   2
#define YY_FLEX_MINOR_VERSION   5
#define YY_FLEX_SUBMINOR_VERSION   35
#define YY_FLUSH_BUFFER   do_flush_buffer(YY_CURRENT_BUFFER )
#define yy_flush_buffer   do_flush_buffer
#define yy_init_buffer   do_init_buffer
#define YY_INT_ALIGNED   short int
#define YY_LESS_LINENO ( n   ) 
Value:
do { \
                int yyl;\
                for ( yyl = n; yyl < doleng; ++yyl )\
                    if ( dotext[yyl] == '\n' )\
                        --dolineno;\
            }while(0)
#define yy_load_buffer_state   do_load_buffer_state
#define YY_MORE_ADJ   0
#define yy_new_buffer   do_create_buffer
#define YY_NEW_FILE   dorestart(doin )
#define YY_NULL   0
#define YY_NUM_RULES   31
#define YY_RESTORE_YY_MORE_OFFSET
#define YY_RULE_SETUP   YY_USER_ACTION
#define YY_SC_TO_UI ( c   )     ((unsigned int) (unsigned char) c)
#define yy_set_bol ( at_bol   ) 
Value:
{ \
        if ( ! YY_CURRENT_BUFFER ){\
        doensure_buffer_stack (); \
                YY_CURRENT_BUFFER_LVALUE =    \
            do_create_buffer(doin,YY_BUF_SIZE ); \
        } \
        YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
        }
#define yy_set_interactive ( is_interactive   ) 
Value:
{ \
        if ( ! YY_CURRENT_BUFFER ){ \
        doensure_buffer_stack (); \
                YY_CURRENT_BUFFER_LVALUE =    \
            do_create_buffer(doin,YY_BUF_SIZE ); \
        } \
        YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
        }
#define YY_START   (((yy_start) - 1) / 2)
#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
#define YY_STATE_EOF ( state   )     (YY_END_OF_BUFFER + state + 1)
#define yy_switch_to_buffer   do_switch_to_buffer
#define yyalloc   doalloc
#define yyconst
#define yyfree   dofree
#define yyin   doin
#define yyleng   doleng
#define yyless ( n   ) 
Value:
do \
                { \
                /* Undo effects of setting up dotext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
                dotext[doleng] = (yy_hold_char); \
                (yy_c_buf_p) = dotext + yyless_macro_arg; \
                (yy_hold_char) = *(yy_c_buf_p); \
                *(yy_c_buf_p) = '\0'; \
                doleng = yyless_macro_arg; \
                } \
        while ( 0 )
#define yyless ( n   ) 
Value:
do \
                { \
                /* Undo effects of setting up dotext. */ \
        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 dotext again */ \
                } \
        while ( 0 )
#define yylex   dolex
#define yylineno   dolineno
 
#define yymore (  )     yymore_used_but_not_detected
#define yyout   doout
#define yyrealloc   dorealloc
#define yyrestart   dorestart
#define YYSTATE   YY_START
#define YYSTYPE   char*
#define YYTABLES_NAME   "yytables"
#define yytext   dotext
#define yytext_ptr   dotext
#define yywrap   dowrap

Typedef Documentation

typedef short int flex_int16_t
typedef int flex_int32_t
typedef signed char flex_int8_t
typedef unsigned short int flex_uint16_t
typedef unsigned int flex_uint32_t
typedef unsigned char flex_uint8_t
typedef struct yy_buffer_state* YY_BUFFER_STATE
typedef unsigned char YY_CHAR
typedef size_t yy_size_t
typedef int yy_state_type

Function Documentation

YY_BUFFER_STATE do_create_buffer ( FILE *  file,
int  size 
)
void do_delete_buffer ( YY_BUFFER_STATE  b  ) 

Referenced by dolex_destroy(), and dopop_buffer_state().

void do_flush_buffer ( YY_BUFFER_STATE  b  ) 

Discard all buffered characters. On the next scan, YY_INPUT will be called.

Parameters:
b the buffer state to be flushed, usually YY_CURRENT_BUFFER.

References yy_buffer_state::yy_at_bol, yy_buffer_state::yy_buf_pos, YY_BUFFER_NEW, yy_buffer_state::yy_buffer_status, yy_buffer_state::yy_ch_buf, YY_CURRENT_BUFFER, YY_END_OF_BUFFER_CHAR, and yy_buffer_state::yy_n_chars.

YY_BUFFER_STATE do_scan_buffer ( char *  base,
yy_size_t  size 
)

Setup the input buffer state to scan directly from a user-specified character buffer.

Parameters:
base the character buffer
size the size in bytes of the character buffer
Returns:
the newly allocated buffer state object.

References do_switch_to_buffer(), doalloc(), yy_buffer_state::yy_at_bol, yy_buffer_state::yy_buf_pos, yy_buffer_state::yy_buf_size, YY_BUFFER_NEW, yy_buffer_state::yy_buffer_status, yy_buffer_state::yy_ch_buf, YY_END_OF_BUFFER_CHAR, YY_FATAL_ERROR, yy_buffer_state::yy_fill_buffer, yy_buffer_state::yy_input_file, yy_buffer_state::yy_is_interactive, yy_buffer_state::yy_is_our_buffer, and yy_buffer_state::yy_n_chars.

Referenced by do_scan_bytes().

YY_BUFFER_STATE do_scan_bytes ( yyconst char *  yybytes,
int  _yybytes_len 
)

Setup the input buffer state to scan the given bytes. The next call to dolex() will scan from a copy of bytes.

Parameters:
yybytes the byte buffer to scan
_yybytes_len the number of bytes in the buffer pointed to by bytes.
Returns:
the newly allocated buffer state object.

References do_scan_buffer(), doalloc(), n, YY_END_OF_BUFFER_CHAR, YY_FATAL_ERROR, and yy_buffer_state::yy_is_our_buffer.

Referenced by do_scan_string().

YY_BUFFER_STATE do_scan_string ( yyconst char *  yystr  ) 

Setup the input buffer state to scan a string. The next call to dolex() will scan from a copy of str.

Parameters:
yystr a NUL-terminated string to scan
Returns:
the newly allocated buffer state object.
Note:
If you want to scan bytes that may contain NUL values, then use do_scan_bytes() instead.

References do_scan_bytes().

void do_switch_to_buffer ( YY_BUFFER_STATE  new_buffer  ) 

Referenced by do_scan_buffer().

void * doalloc ( yy_size_t  size  ) 

Referenced by do_scan_buffer(), and do_scan_bytes().

void doerror ( const char *  text  ) 
void dofree ( void *  ptr  ) 

Referenced by dolex_destroy().

int doget_debug ( void   ) 
YY_EXTRA_TYPE doget_extra ( void   ) 
FILE * doget_in ( void   ) 

Get the input stream.

References doin.

int doget_leng ( void   ) 

Get the length of the current token.

References doleng.

int doget_lineno ( void   ) 

Get the current line number.

FILE * doget_out ( void   ) 

Get the output stream.

References doout.

char * doget_text ( void   ) 

Get the current token.

int dolex_destroy ( void   ) 

References do_delete_buffer(), dofree(), dopop_buffer_state(), YY_CURRENT_BUFFER, and YY_CURRENT_BUFFER_LVALUE.

void dopop_buffer_state ( void   ) 

Removes and deletes the top of the stack, if present. The next element becomes the new top.

References do_delete_buffer(), YY_CURRENT_BUFFER, and YY_CURRENT_BUFFER_LVALUE.

Referenced by dolex_destroy().

void dopush_buffer_state ( YY_BUFFER_STATE  new_buffer  ) 

Pushes the new state onto the stack. The new state becomes the current state. This function will allocate the stack if necessary.

Parameters:
new_buffer The new state.

References YY_CURRENT_BUFFER, and YY_CURRENT_BUFFER_LVALUE.

void * dorealloc ( void *  ptr,
yy_size_t  size 
)
void dorestart ( FILE *  input_file  ) 
void doset_debug ( int  debug_flag  ) 
void doset_extra ( YY_EXTRA_TYPE  user_defined  ) 
void doset_in ( FILE *  in_str  ) 

Set the input stream. This does not discard the current input buffer.

Parameters:
in_str A readable stream.
See also:
do_switch_to_buffer

References doin.

Referenced by main().

void doset_lineno ( int  line_number  ) 

Set the current line number.

Parameters:
line_number 
void doset_out ( FILE *  out_str  ) 

References doout.

int dowrap ( void   ) 

Variable Documentation

int do_flex_debug = 0
FILE * doin = (FILE *) 0

Referenced by doget_in(), and doset_in().

int doleng

Referenced by doget_leng().

int dolineno = 1
FILE * doout = (FILE *) 0

Referenced by doget_out(), and doset_out().

char * dotext
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