lex.cc File Reference

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <cctype>
#include <cstring>
#include <iostream>
#include <set>
#include <sstream>
#include <string>
#include <stack>
#include <sys/types.h>
#include <unistd.h>
#include "cmd-edit.h"
#include "quit.h"
#include "lo-mappers.h"
#include "Cell.h"
#include "comment-list.h"
#include "defun.h"
#include "error.h"
#include "gripes.h"
#include "input.h"
#include "lex.h"
#include "ov.h"
#include "parse.h"
#include "pt-all.h"
#include "symtab.h"
#include "token.h"
#include "toplev.h"
#include "utils.h"
#include "variables.h"
#include <oct-parse.h>
#include <oct-gperf.h>

Include dependency graph for lex.cc:

Go to the source code of this file.

Classes
struct	yy_buffer_state
struct	yy_trans_info
struct	yyguts_t

Macros
#define	BEGIN   yyg->yy_start = 1 + 2 *
#define	BLOCK_COMMENT_START   4
#define	CMD_OR_COMPUTED_ASSIGN_OP(PATTERN, TOK)
#define	CMD_OR_OP(PATTERN, TOK, COMPAT)
#define	CMD_OR_UNARY_OP(PATTERN, TOK, COMPAT)
#define	COMMAND_ARG_FINISH
#define	COMMAND_START   1
#define	curr_lexer   yyextra
#define	DQ_STRING_START   6
#define	ECHO   do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
#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	FLEXINT_H
#define	FQ_IDENT_START   8
#define	HANDLE_IDENTIFIER(pattern, get_set)
#define	HANDLE_STRING_CONTINUATION
#define	INITIAL   0
#define	INPUT_FILE_START   3
#define	INT16_MAX   (32767)
#define	INT16_MIN   (-32767-1)
#define	INT32_MAX   (2147483647)
#define	INT32_MIN   (-2147483647-1)
#define	INT8_MAX   (127)
#define	INT8_MIN   (-128)
#define	LINE_COMMENT_START   5
#define	MATRIX_START   2
#define	octave_wrap(yyscanner)   1
#define	OCTAVE_YYG   struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner)
#define	REJECT
#define	SQ_STRING_START   7
#define	UINT16_MAX   (65535U)
#define	UINT32_MAX   (4294967295U)
#define	UINT8_MAX   (255U)
#define	unput(c)   yyunput( c, yyg->yytext_ptr , yyscanner )
#define	YY_AT_BOL()   (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
#define	YY_BREAK   break;
#define	YY_BUF_SIZE   16384
#define	YY_BUFFER_EOF_PENDING   2
#define	YY_BUFFER_NEW   0
#define	YY_BUFFER_NORMAL   1
#define	YY_CURRENT_BUFFER
#define	YY_CURRENT_BUFFER_LVALUE   yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]
#define	YY_DECL
#define	YY_DECL_IS_OURS   1
#define	YY_DO_BEFORE_ACTION
#define	YY_END_OF_BUFFER   124
#define	YY_END_OF_BUFFER_CHAR   0
#define	YY_EXIT_FAILURE   2
#define	YY_EXTRA_TYPE   octave_base_lexer *
#define	YY_FATAL_ERROR(msg)   (octave_get_extra (yyscanner))->fatal_error (msg)
#define	yy_flex_debug   yyg->yy_flex_debug_r
#define	YY_FLEX_MAJOR_VERSION   2
#define	YY_FLEX_MINOR_VERSION   5
#define	YY_FLEX_SUBMINOR_VERSION   39
#define	YY_FLUSH_BUFFER   octave__flush_buffer(YY_CURRENT_BUFFER ,yyscanner)
#define	YY_INPUT(buf, result, max_size)   result = curr_lexer->fill_flex_buffer (buf, max_size)
#define	YY_INT_ALIGNED   short int
#define	YY_LESS_LINENO(n)
#define	YY_LINENO_REWIND_TO(ptr)
#define	YY_MORE_ADJ   0
#define	yy_new_buffer   octave__create_buffer
#define	YY_NEW_FILE   octave_restart(yyin ,yyscanner )
#define	YY_NULL   0
#define	YY_NUM_RULES   123
#define	YY_READ_BUF_SIZE   8192
#define	YY_RESTORE_YY_MORE_OFFSET
#define	YY_RULE_SETUP
#define	YY_SC_TO_UI(c)   ((unsigned int) (unsigned char) c)
#define	yy_set_bol(at_bol)
#define	yy_set_interactive(is_interactive)
#define	YY_SKIP_YYWRAP
#define	YY_START   ((yyg->yy_start - 1) / 2)
#define	YY_START_STACK_INCR   25
#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_STRUCT_YY_BUFFER_STATE
#define	YY_TRAILING_HEAD_MASK   0x4000
#define	YY_TRAILING_MASK   0x2000
#define	YY_TYPEDEF_YY_BUFFER_STATE
#define	YY_TYPEDEF_YY_SCANNER_T
#define	YY_TYPEDEF_YY_SIZE_T
#define	YY_USER_ACTION
#define	yycolumn   (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
#define	yyconst
#define	yyextra   yyg->yyextra_r
#define	yyin   yyg->yyin_r
#define	yyleng   yyg->yyleng_r
#define	yyless(n)
#define	yyless(n)
#define	yylineno   (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)
#define	yylval   yyg->yylval_r
#define	yymore()   yymore_used_but_not_detected
#define	yyout   yyg->yyout_r
#define	YYSTATE   YY_START
#define	YYSTYPE   OCTAVE_STYPE
#define	YYTABLES_NAME   "yytables"
#define	yyterminate()   return YY_NULL
#define	yytext   yyg->yytext_r
#define	yytext_ptr   yytext_r

Typedefs
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
typedef void *	yyscan_t

Functions
static void	display_character (char c)
OCTAVE_EXPORT octave_value_list	F__display_tokens__ (const octave_value_list &args, int nargout)
OCTAVE_EXPORT octave_value_list	F__lexer_debug_flag__ (const octave_value_list &args, int nargout)
OCTAVE_EXPORT octave_value_list	F__token_count__ (const octave_value_list &, int)
OCTAVE_EXPORT octave_value_list	Fiskeyword (const octave_value_list &args, int)
static int	input (yyscan_t yyscanner)
bool	is_keyword (const std::string &s)
static bool	looks_like_copyright (const std::string &s)
static bool	looks_like_hex (const char *s, int len)
YY_BUFFER_STATE	octave__create_buffer (FILE *file, int size, yyscan_t yyscanner)
	Allocate and initialize an input buffer state. More...
void	octave__delete_buffer (YY_BUFFER_STATE b, yyscan_t yyscanner)
	Destroy the buffer. More...
void	octave__flush_buffer (YY_BUFFER_STATE b, yyscan_t yyscanner)
	Discard all buffered characters. More...
static void	octave__init_buffer (YY_BUFFER_STATE b, FILE *file, yyscan_t yyscanner)
static void	octave__load_buffer_state (yyscan_t yyscanner)
YY_BUFFER_STATE	octave__scan_buffer (char *base, yy_size_t size, yyscan_t yyscanner)
	Setup the input buffer state to scan directly from a user-specified character buffer. More...
YY_BUFFER_STATE	octave__scan_bytes (char *yybytes, yy_size_t _yybytes_len, yyscan_t yyscanner)
	Setup the input buffer state to scan the given bytes. More...
YY_BUFFER_STATE	octave__scan_string (char *yystr, yyscan_t yyscanner)
	Setup the input buffer state to scan a string. More...
void	octave__switch_to_buffer (YY_BUFFER_STATE new_buffer, yyscan_t yyscanner)
	Switch to a different input buffer. More...
void *	octave_alloc (yy_size_t, yyscan_t yyscanner)
static void	octave_ensure_buffer_stack (yyscan_t yyscanner)
void	octave_free (void *, yyscan_t yyscanner)
int	octave_get_column (yyscan_t yyscanner)
	Get the current column number. More...
int	octave_get_debug (yyscan_t yyscanner)
octave_base_lexer *	octave_get_extra (yyscan_t yyscanner)
	Get the user-defined data for this scanner. More...
FILE *	octave_get_in (yyscan_t yyscanner)
	Get the input stream. More...
yy_size_t	octave_get_leng (yyscan_t yyscanner)
	Get the length of the current token. More...
int	octave_get_lineno (yyscan_t yyscanner)
	Get the current line number. More...
OCTAVE_STYPE *	octave_get_lval (yyscan_t yyscanner)
FILE *	octave_get_out (yyscan_t yyscanner)
	Get the output stream. More...
char *	octave_get_text (yyscan_t yyscanner)
	Get the current token. More...
int	octave_lex (OCTAVE_STYPE *yylval_param, yyscan_t yyscanner)
	The main scanner function which does all the work. More...
int	octave_lex_destroy (yyscan_t yyscanner)
int	octave_lex_init (yyscan_t *scanner)
int	octave_lex_init_extra (octave_base_lexer *user_defined, yyscan_t *scanner)
void	octave_pop_buffer_state (yyscan_t yyscanner)
	Removes and deletes the top of the stack, if present. More...
void	octave_push_buffer_state (YY_BUFFER_STATE new_buffer, yyscan_t yyscanner)
	Pushes the new state onto the stack. More...
void *	octave_realloc (void *, yy_size_t, yyscan_t yyscanner)
void	octave_restart (FILE *input_file, yyscan_t yyscanner)
	Immediately switch to a different input stream. More...
void	octave_set_column (int column_no, yyscan_t yyscanner)
	Set the current column. More...
void	octave_set_debug (int debug_flag, yyscan_t yyscanner)
void	octave_set_extra (octave_base_lexer *user_defined, yyscan_t yyscanner)
	Set the user-defined data. More...
void	octave_set_in (FILE *in_str, yyscan_t yyscanner)
	Set the input stream. More...
void	octave_set_lineno (int line_number, yyscan_t yyscanner)
	Set the current line number. More...
void	octave_set_lval (OCTAVE_STYPE *yylval_param, yyscan_t yyscanner)
void	octave_set_out (FILE *out_str, yyscan_t yyscanner)
static void	yy_fatal_error (char msg[], yyscan_t yyscanner)
static void	yy_fatal_error (char *msg, yyscan_t yyscanner)
static int	yy_get_next_buffer (yyscan_t yyscanner)
static yy_state_type	yy_get_previous_state (yyscan_t yyscanner)
static int	yy_init_globals (yyscan_t yyscanner)
static yy_state_type	yy_try_NUL_trans (yy_state_type current_state, yyscan_t yyscanner)
static void	yyunput (int c, char *buf_ptr, yyscan_t yyscanner)
static void	yyunput (int c, register char *yy_bp, yyscan_t yyscanner)

Variables
static bool	lexer_debug_flag = false
static bool	Vdisplay_tokens = false
static unsigned int	Vtoken_count = 0
static flex_int16_t	yy_accept [265]
static flex_int16_t	yy_acclist [356]
static flex_int16_t	yy_base [296]
static flex_int16_t	yy_chk [773]
static flex_int16_t	yy_def [296]
static flex_int32_t	yy_ec [256]
static flex_int32_t	yy_meta [52]
static flex_int16_t	yy_nxt [773]

Macro Definition Documentation

#define BEGIN   yyg->yy_start = 1 + 2 *

Definition at line 149 of file lex.cc.

Referenced by octave_base_lexer::pop_start_state(), and octave_base_lexer::push_start_state().

#define BLOCK_COMMENT_START   4

Definition at line 1067 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define CMD_OR_COMPUTED_ASSIGN_OP	(		PATTERN,
			TOK
	)

Value:

\
  do \
    { \
      curr_lexer->lexer_debug (PATTERN); \
 \
      if (curr_lexer->previous_token_may_be_command () \
          && curr_lexer->space_follows_previous_token ()) \
        { \
          yyless (0); \
          curr_lexer->push_start_state (COMMAND_START); \
        } \
      else \
        { \
          return curr_lexer->handle_language_extension_op (PATTERN, TOK, \
                                                           false); \
        } \
    } \
  while (0)

Definition at line 911 of file lex.cc.

Referenced by octave_lex().

#define CMD_OR_OP	(		PATTERN,
			TOK,
			COMPAT
	)

Value:

\
  do \
    { \
      curr_lexer->lexer_debug (PATTERN); \
 \
      if (curr_lexer->looks_like_command_arg ()) \
        { \
          yyless (0); \
          curr_lexer->push_start_state (COMMAND_START); \
        } \
      else \
        { \
          return curr_lexer->handle_op_internal (TOK, false, COMPAT); \
        } \
    } \
  while (0)

Definition at line 893 of file lex.cc.

Referenced by octave_lex().

#define CMD_OR_UNARY_OP	(		PATTERN,
			TOK,
			COMPAT
	)

Definition at line 931 of file lex.cc.

Referenced by octave_lex().

#define COMMAND_ARG_FINISH

Value:

do \
    { \
      if (curr_lexer->string_text.empty ()) \
        break; \
 \
      int retval = curr_lexer->handle_token (curr_lexer->string_text, \
                                             SQ_STRING); \
 \
      curr_lexer->string_text = ""; \
      curr_lexer->command_arg_paren_count = 0; \
 \
      yyless (0); \
 \
      return retval; \
    } \
  while (0)

Definition at line 999 of file lex.cc.

Referenced by octave_lex().

#define COMMAND_START   1

Definition at line 1064 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define curr_lexer   yyextra

Definition at line 875 of file lex.cc.

Referenced by octave_lex().

#define DQ_STRING_START   6

Definition at line 1069 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define ECHO   do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)

Definition at line 1226 of file lex.cc.

Referenced by octave_lex().

#define EOB_ACT_CONTINUE_SCAN   0

Definition at line 193 of file lex.cc.

Referenced by input(), octave_lex(), and yy_get_next_buffer().

#define EOB_ACT_END_OF_FILE   1

Definition at line 194 of file lex.cc.

Referenced by input(), octave_lex(), and yy_get_next_buffer().

#define EOB_ACT_LAST_MATCH   2

Definition at line 195 of file lex.cc.

Referenced by input(), octave_lex(), and yy_get_next_buffer().

#define FLEX_BETA

Definition at line 20 of file lex.cc.

#define FLEX_SCANNER

Definition at line 15 of file lex.cc.

#define FLEXINT_H

Definition at line 36 of file lex.cc.

#define FQ_IDENT_START   8

Definition at line 1071 of file lex.cc.

Referenced by octave_base_lexer::enable_fq_identifier(), and octave_lex().

#define HANDLE_IDENTIFIER	(		pattern,
			get_set
	)

Definition at line 1017 of file lex.cc.

Referenced by octave_lex().

#define HANDLE_STRING_CONTINUATION

Value:

do \
    { \
      curr_lexer->decrement_promptflag (); \
      curr_lexer->input_line_number++; \
      curr_lexer->current_input_column = 1; \
 \
      if (curr_lexer->is_push_lexer ()) \
        { \
          if (curr_lexer->at_end_of_buffer ()) \
            return -1; \
 \
          if (curr_lexer->at_end_of_file ()) \
            return curr_lexer->handle_end_of_input (); \
        } \
    } \
  while (0)

Definition at line 977 of file lex.cc.

Referenced by octave_lex().

#define INITIAL   0

Definition at line 1063 of file lex.cc.

Referenced by octave_base_lexer::clear_start_state(), octave_base_lexer::display_start_state(), and octave_lex().

#define INPUT_FILE_START   3

Definition at line 1066 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), octave_lex(), and octave_base_lexer::prep_for_file().

#define INT16_MAX   (32767)

Definition at line 78 of file lex.cc.

#define INT16_MIN   (-32767-1)

Definition at line 69 of file lex.cc.

#define INT32_MAX   (2147483647)

Definition at line 81 of file lex.cc.

#define INT32_MIN   (-2147483647-1)

Definition at line 72 of file lex.cc.

#define INT8_MAX   (127)

Definition at line 75 of file lex.cc.

#define INT8_MIN   (-128)

Definition at line 66 of file lex.cc.

#define LINE_COMMENT_START   5

Definition at line 1068 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define MATRIX_START   2

Definition at line 1065 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define octave_wrap

(

yyscanner

)

1

Definition at line 344 of file lex.cc.

Referenced by input(), and octave_lex().

#define OCTAVE_YYG   struct yyguts_t *yyg = static_cast<struct yyguts_t*> (scanner)

Definition at line 4859 of file lex.cc.

Referenced by octave_base_lexer::pop_start_state(), and octave_base_lexer::push_start_state().

#define REJECT

Value:

{ \
*yy_cp = yyg->yy_hold_char; /* undo effects of setting up yytext */ \
yy_cp = yyg->yy_full_match; /* restore poss. backed-over text */ \
yyg->yy_lp = yyg->yy_full_lp; /* restore orig. accepting pos. */ \
yyg->yy_state_ptr = yyg->yy_full_state; /* restore orig. state */ \
yy_current_state = *yyg->yy_state_ptr; /* restore curr. state */ \
++yyg->yy_lp; \
goto find_rule; \
}

Definition at line 749 of file lex.cc.

#define SQ_STRING_START   7

Definition at line 1070 of file lex.cc.

Referenced by octave_base_lexer::display_start_state(), and octave_lex().

#define UINT16_MAX   (65535U)

Definition at line 87 of file lex.cc.

#define UINT32_MAX   (4294967295U)

Definition at line 90 of file lex.cc.

#define UINT8_MAX   (255U)

Definition at line 84 of file lex.cc.

#define unput

(

c

)

yyunput( c, yyg->yytext_ptr , yyscanner )

Definition at line 214 of file lex.cc.

Referenced by octave_lex().

#define YY_AT_BOL

(

)

(YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

Definition at line 340 of file lex.cc.

Referenced by octave_lex(), and yy_get_previous_state().

#define YY_BREAK   break;

Definition at line 1307 of file lex.cc.

Referenced by octave_lex().

#define YY_BUF_SIZE   16384

Definition at line 175 of file lex.cc.

Referenced by octave_lex(), and octave_restart().

#define YY_BUFFER_EOF_PENDING   2

Definition at line 276 of file lex.cc.

Referenced by yy_get_next_buffer().

#define YY_BUFFER_NEW   0

Definition at line 264 of file lex.cc.

Referenced by octave__flush_buffer(), octave__scan_buffer(), and octave_lex().

#define YY_BUFFER_NORMAL   1

Definition at line 265 of file lex.cc.

Referenced by octave_lex().

#define YY_CURRENT_BUFFER

Value:

( yyg->yy_buffer_stack \
                          ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \
                          : NULL)

Definition at line 287 of file lex.cc.

Referenced by octave__delete_buffer(), octave__flush_buffer(), octave__init_buffer(), octave__switch_to_buffer(), octave_get_column(), octave_get_lineno(), octave_lex(), octave_lex_destroy(), octave_pop_buffer_state(), octave_push_buffer_state(), octave_restart(), octave_set_column(), and octave_set_lineno().

#define YY_CURRENT_BUFFER_LVALUE   yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]

Definition at line 294 of file lex.cc.

Referenced by input(), octave__delete_buffer(), octave__load_buffer_state(), octave__switch_to_buffer(), octave_lex(), octave_lex_destroy(), octave_pop_buffer_state(), octave_push_buffer_state(), octave_restart(), yy_get_next_buffer(), and yyunput().

#define YY_DECL

Value:

int octave_lex \
               (YYSTYPE * yylval_param , yyscan_t yyscanner)

Definition at line 1294 of file lex.cc.

#define YY_DECL_IS_OURS   1

Definition at line 1289 of file lex.cc.

#define YY_DO_BEFORE_ACTION

Value:

yyg->yytext_ptr = yy_bp; \
	yyleng = (size_t) (yy_cp - yy_bp); \
  yyg->yy_hold_char = *yy_cp; \
  *yy_cp = '\0'; \
  yyg->yy_c_buf_p = yy_cp;

Definition at line 361 of file lex.cc.

Referenced by octave_lex().

#define YY_END_OF_BUFFER   124

Definition at line 369 of file lex.cc.

Referenced by octave_lex().

#define YY_END_OF_BUFFER_CHAR   0

Definition at line 164 of file lex.cc.

Referenced by input(), octave__flush_buffer(), octave__scan_buffer(), octave__scan_bytes(), and yy_get_next_buffer().

#define YY_EXIT_FAILURE   2

Definition at line 4008 of file lex.cc.

Referenced by yy_fatal_error().

#define YY_EXTRA_TYPE   octave_base_lexer *

Definition at line 874 of file lex.cc.

#define YY_FATAL_ERROR

(

msg

)

(octave_get_extra (yyscanner))->fatal_error (msg)

Definition at line 890 of file lex.cc.

Referenced by octave__create_buffer(), octave__scan_buffer(), octave__scan_bytes(), octave_ensure_buffer_stack(), octave_lex(), octave_set_column(), octave_set_lineno(), yy_get_next_buffer(), and yyunput().

#define yy_flex_debug   yyg->yy_flex_debug_r

Definition at line 143 of file lex.cc.

Referenced by octave_get_debug(), and octave_set_debug().

#define YY_FLEX_MAJOR_VERSION   2

Definition at line 16 of file lex.cc.

#define YY_FLEX_MINOR_VERSION   5

Definition at line 17 of file lex.cc.

#define YY_FLEX_SUBMINOR_VERSION   39

Definition at line 18 of file lex.cc.

#define YY_FLUSH_BUFFER   octave__flush_buffer(YY_CURRENT_BUFFER ,yyscanner)

Definition at line 308 of file lex.cc.

#define YY_INPUT	(		buf,
			result,
			max_size
	)		result = curr_lexer->fill_flex_buffer (buf, max_size)

Definition at line 882 of file lex.cc.

Referenced by yy_get_next_buffer().

#define YY_INT_ALIGNED   short int

Definition at line 11 of file lex.cc.

#define YY_LESS_LINENO

(

n

)

Definition at line 197 of file lex.cc.

#define YY_LINENO_REWIND_TO

(

ptr

)

Definition at line 198 of file lex.cc.

#define YY_MORE_ADJ   0

Definition at line 761 of file lex.cc.

Referenced by octave_lex(), yy_get_next_buffer(), and yy_get_previous_state().

#define yy_new_buffer   octave__create_buffer

Definition at line 318 of file lex.cc.

#define YY_NEW_FILE   octave_restart(yyin ,yyscanner )

Definition at line 162 of file lex.cc.

Referenced by input(), and octave_lex().

#define YY_NULL   0

Definition at line 119 of file lex.cc.

Referenced by octave_lexer::fill_flex_buffer(), and octave_push_lexer::fill_flex_buffer().

#define YY_NUM_RULES   123

Definition at line 368 of file lex.cc.

#define YY_READ_BUF_SIZE   8192

Definition at line 1217 of file lex.cc.

Referenced by yy_get_next_buffer().

#define YY_RESTORE_YY_MORE_OFFSET

Definition at line 762 of file lex.cc.

Referenced by octave_lex().

#define YY_RULE_SETUP

Value:

if ( yyleng > 0 ) \
		YY_CURRENT_BUFFER_LVALUE->yy_at_bol = \
        (yytext[yyleng - 1] == '\n'); \
	YY_USER_ACTION

Definition at line 1310 of file lex.cc.

Referenced by octave_lex().

#define YY_SC_TO_UI

(

c

)

((unsigned int) (unsigned char) c)

Definition at line 126 of file lex.cc.

Referenced by octave_lex(), and yy_get_previous_state().

#define yy_set_bol

(

at_bol

)

Value:

{ \
  if ( ! YY_CURRENT_BUFFER ){\
        octave_ensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            octave__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
  } \
	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
  }

Definition at line 330 of file lex.cc.

#define yy_set_interactive

(

is_interactive

)

Value:

{ \
  if ( ! YY_CURRENT_BUFFER ){ \
        octave_ensure_buffer_stack (yyscanner); \
		YY_CURRENT_BUFFER_LVALUE =    \
            octave__create_buffer(yyin,YY_BUF_SIZE ,yyscanner); \
  } \
	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
  }

Definition at line 320 of file lex.cc.

#define YY_SKIP_YYWRAP

Definition at line 345 of file lex.cc.

#define YY_START   ((yyg->yy_start - 1) / 2)

Definition at line 155 of file lex.cc.

Referenced by octave_lex().

#define YY_START_STACK_INCR   25

Definition at line 1275 of file lex.cc.

#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))

Definition at line 181 of file lex.cc.

Referenced by octave_lex().

#define YY_STATE_EOF

(

state

)

(YY_END_OF_BUFFER + state + 1)

Definition at line 159 of file lex.cc.

Referenced by octave_lex().

#define YY_STRUCT_YY_BUFFER_STATE

Definition at line 217 of file lex.cc.

#define YY_TRAILING_HEAD_MASK   0x4000

Definition at line 748 of file lex.cc.

Referenced by octave_lex().

#define YY_TRAILING_MASK   0x2000

Definition at line 747 of file lex.cc.

Referenced by octave_lex().

#define YY_TYPEDEF_YY_BUFFER_STATE

Definition at line 184 of file lex.cc.

#define YY_TYPEDEF_YY_SCANNER_T

Definition at line 130 of file lex.cc.

#define YY_TYPEDEF_YY_SIZE_T

Definition at line 189 of file lex.cc.

#define YY_USER_ACTION

Definition at line 1302 of file lex.cc.

#define yycolumn   (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)

Definition at line 142 of file lex.cc.

Referenced by octave_get_column(), and octave_set_column().

#define yyconst

Definition at line 115 of file lex.cc.

#define yyextra   yyg->yyextra_r

Definition at line 138 of file lex.cc.

Referenced by octave_get_extra(), and octave_set_extra().

#define yyin   yyg->yyin_r

Definition at line 136 of file lex.cc.

Referenced by input(), octave__load_buffer_state(), octave_get_in(), octave_lex(), octave_restart(), octave_set_in(), yy_get_next_buffer(), and yy_init_globals().

#define yyleng   yyg->yyleng_r

Definition at line 139 of file lex.cc.

Referenced by octave_get_leng(), and octave_lex().

#define yyless

(

n

)

Value:

do \
    { \
    /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
    *yy_cp = yyg->yy_hold_char; \
    YY_RESTORE_YY_MORE_OFFSET \
    yyg->yy_c_buf_p = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
    } \
  while ( 0 )

Definition at line 4020 of file lex.cc.

Referenced by octave_lex().

#define yyless

(

n

)

Value:

do \
    { \
    /* Undo effects of setting up yytext. */ \
        int yyless_macro_arg = (n); \
        YY_LESS_LINENO(yyless_macro_arg);\
		yytext[yyleng] = yyg->yy_hold_char; \
    yyg->yy_c_buf_p = yytext + yyless_macro_arg; \
    yyg->yy_hold_char = *yyg->yy_c_buf_p; \
    *yyg->yy_c_buf_p = '\0'; \
		yyleng = yyless_macro_arg; \
    } \
  while ( 0 )

Definition at line 4020 of file lex.cc.

#define yylineno   (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)

Definition at line 141 of file lex.cc.

Referenced by octave_get_lineno(), and octave_set_lineno().

#define yylval   yyg->yylval_r

Definition at line 1136 of file lex.cc.

Referenced by octave_get_lval(), octave_lex(), and octave_set_lval().

#define yymore

(

)

yymore_used_but_not_detected

Definition at line 760 of file lex.cc.

#define yyout   yyg->yyout_r

Definition at line 137 of file lex.cc.

Referenced by octave_get_out(), octave_lex(), octave_set_out(), and yy_init_globals().

#define YYSTATE   YY_START

Definition at line 156 of file lex.cc.

#define YYSTYPE   OCTAVE_STYPE

Definition at line 854 of file lex.cc.

Referenced by octave_base_lexer::current_token(), and octave_base_lexer::push_token().

#define YYTABLES_NAME   "yytables"

Definition at line 4351 of file lex.cc.

#define yyterminate

(

)

return YY_NULL

Definition at line 1270 of file lex.cc.

#define yytext   yyg->yytext_r

Definition at line 140 of file lex.cc.

Referenced by octave_get_text(), and octave_lex().

#define yytext_ptr   yytext_r

Definition at line 351 of file lex.cc.

Typedef Documentation

typedef short int flex_int16_t

Definition at line 58 of file lex.cc.

typedef int flex_int32_t

Definition at line 59 of file lex.cc.

typedef signed char flex_int8_t

Definition at line 57 of file lex.cc.

typedef unsigned short int flex_uint16_t

Definition at line 61 of file lex.cc.

typedef unsigned int flex_uint32_t

Definition at line 62 of file lex.cc.

typedef unsigned char flex_uint8_t

Definition at line 60 of file lex.cc.

typedef struct yy_buffer_state* YY_BUFFER_STATE

Definition at line 185 of file lex.cc.

typedef unsigned char YY_CHAR

Definition at line 347 of file lex.cc.

typedef size_t yy_size_t

Definition at line 190 of file lex.cc.

typedef int yy_state_type

Definition at line 349 of file lex.cc.

typedef void* yyscan_t

Definition at line 131 of file lex.cc.

Function Documentation

static void display_character ( char  c )

static

Definition at line 4376 of file lex.cc.

Referenced by octave_base_lexer::text_yyinput(), and octave_base_lexer::xunput().

OCTAVE_EXPORT octave_value_list F__display_tokens__	(	const octave_value_list &	args,
		int	nargout
	)

Definition at line 4598 of file lex.cc.

References SET_INTERNAL_VARIABLE.

OCTAVE_EXPORT octave_value_list F__lexer_debug_flag__	(	const octave_value_list &	args,
		int	nargout
	)

Definition at line 4620 of file lex.cc.

References lexer_debug_flag, and set_internal_variable().

OCTAVE_EXPORT octave_value_list F__token_count__	(	const octave_value_list &	,
		int
	)

Definition at line 4608 of file lex.cc.

References octave_value(), and Vtoken_count.

OCTAVE_EXPORT octave_value_list Fiskeyword	(	const octave_value_list &	args,
		int
	)

Definition at line 4542 of file lex.cc.

References error_state, is_keyword(), octave_value::length(), octave_kw::name, print_usage(), string_vector::resize(), string_vector::sort(), TOTAL_KEYWORDS, and wordlist.

static int input ( yyscan_t  yyscanner )

static

Definition at line 3576 of file lex.cc.

References EOB_ACT_CONTINUE_SCAN, EOB_ACT_END_OF_FILE, EOB_ACT_LAST_MATCH, octave_restart(), octave_wrap, yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER_LVALUE, yyguts_t::yy_did_buffer_switch_on_eof, YY_END_OF_BUFFER_CHAR, yy_get_next_buffer(), yyguts_t::yy_hold_char, yyguts_t::yy_n_chars, YY_NEW_FILE, and yyin.

Referenced by octave_base_lexer::input_buffer::fill().

bool is_keyword

(

const std::string &

s

)

Definition at line 4522 of file lex.cc.

References octave_kw_hash::in_word_set().

Referenced by Fiskeyword(), Fisvarname(), read_mat_ascii_data(), and symbol_exist().

static bool looks_like_copyright ( const std::string &  s )

static

Definition at line 4778 of file lex.cc.

Referenced by octave_base_lexer::finish_comment().

static bool looks_like_hex ( const char *  s, int  len  )

inlinestatic

Definition at line 5297 of file lex.cc.

Referenced by octave_base_lexer::handle_number().

YY_BUFFER_STATE octave__create_buffer	(	FILE *	file,
		int	size,
		yyscan_t	yyscanner
	)

Allocate and initialize an input buffer state.

Parameters

file	A readable stream.
size	The character buffer size in bytes. When in doubt, use YY_BUF_SIZE.
yyscanner	The scanner object.

Returns

the allocated buffer state.

Definition at line 3719 of file lex.cc.

References octave__init_buffer(), octave_alloc(), size(), yy_buffer_state::yy_buf_size, yy_buffer_state::yy_ch_buf, YY_FATAL_ERROR, and yy_buffer_state::yy_is_our_buffer.

Referenced by octave_lex(), and octave_restart().

void octave__delete_buffer	(	YY_BUFFER_STATE	b,
		yyscan_t	yyscanner
	)

Destroy the buffer.

Parameters

b	a buffer created with octave__create_buffer()
yyscanner	The scanner object.

Definition at line 3747 of file lex.cc.

References octave_free(), yy_buffer_state::yy_ch_buf, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, and yy_buffer_state::yy_is_our_buffer.

Referenced by octave_lex_destroy(), and octave_pop_buffer_state().

void octave__flush_buffer	(	YY_BUFFER_STATE	b,
		yyscan_t	yyscanner
	)

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.
yyscanner	The scanner object.

Definition at line 3796 of file lex.cc.

References octave__load_buffer_state(), 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.

Referenced by octave__init_buffer().

static void octave__init_buffer ( YY_BUFFER_STATE  b, FILE *  file, yyscan_t  yyscanner  )

static

Definition at line 3767 of file lex.cc.

References octave__flush_buffer(), yy_buffer_state::yy_bs_column, yy_buffer_state::yy_bs_lineno, YY_CURRENT_BUFFER, yy_buffer_state::yy_fill_buffer, yy_buffer_state::yy_input_file, and yy_buffer_state::yy_is_interactive.

Referenced by octave__create_buffer(), and octave_restart().

static void octave__load_buffer_state ( yyscan_t  yyscanner )

static

Definition at line 3704 of file lex.cc.

References yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER_LVALUE, yyguts_t::yy_hold_char, yyguts_t::yy_n_chars, and yyin.

Referenced by octave__flush_buffer(), octave__switch_to_buffer(), octave_lex(), octave_pop_buffer_state(), octave_push_buffer_state(), and octave_restart().

YY_BUFFER_STATE octave__scan_buffer	(	char *	base,
		yy_size_t	size,
		yyscan_t	yyscanner
	)

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
yyscanner	The scanner object.

Returns

the newly allocated buffer state object.

Definition at line 3927 of file lex.cc.

References octave__switch_to_buffer(), octave_alloc(), 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 octave__scan_bytes().

YY_BUFFER_STATE octave__scan_bytes	(	char *	yybytes,
		yy_size_t	_yybytes_len,
		yyscan_t	yyscanner
	)

Setup the input buffer state to scan the given bytes.

The next call to octave_lex() 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.
yyscanner	The scanner object.

Returns

the newly allocated buffer state object.

Definition at line 3977 of file lex.cc.

References octave__scan_buffer(), octave_alloc(), YY_END_OF_BUFFER_CHAR, YY_FATAL_ERROR, and yy_buffer_state::yy_is_our_buffer.

Referenced by octave__scan_string().

YY_BUFFER_STATE octave__scan_string	(	char *	yystr,
		yyscan_t	yyscanner
	)

Setup the input buffer state to scan a string.

The next call to octave_lex() will scan from a copy of str.

Parameters

yystr	a NUL-terminated string to scan
yyscanner	The scanner object.

Returns

the newly allocated buffer state object.

Note

If you want to scan bytes that may contain NUL values, then use octave__scan_bytes() instead.

Definition at line 3964 of file lex.cc.

References octave__scan_bytes().

void octave__switch_to_buffer	(	YY_BUFFER_STATE	new_buffer,
		yyscan_t	yyscanner
	)

Switch to a different input buffer.

Parameters

new_buffer	The new input buffer.
yyscanner	The scanner object.

Definition at line 3672 of file lex.cc.

References octave__load_buffer_state(), octave_ensure_buffer_stack(), yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, yyguts_t::yy_did_buffer_switch_on_eof, yyguts_t::yy_hold_char, and yyguts_t::yy_n_chars.

Referenced by octave__scan_buffer().

void * octave_alloc	(	yy_size_t	size,
		yyscan_t	yyscanner
	)

Definition at line 4358 of file lex.cc.

References malloc().

Referenced by octave__create_buffer(), octave__scan_buffer(), octave__scan_bytes(), octave_ensure_buffer_stack(), octave_lex(), octave_lex_init(), and octave_lex_init_extra().

static void octave_ensure_buffer_stack ( yyscan_t  yyscanner )

static

Definition at line 3877 of file lex.cc.

References octave_alloc(), octave_realloc(), yyguts_t::yy_buffer_stack, yyguts_t::yy_buffer_stack_max, yyguts_t::yy_buffer_stack_top, and YY_FATAL_ERROR.

Referenced by octave__switch_to_buffer(), octave_lex(), octave_push_buffer_state(), and octave_restart().

void octave_free	(	void *	ptr,
		yyscan_t	yyscanner
	)

Definition at line 4370 of file lex.cc.

References free().

Referenced by octave__delete_buffer(), and octave_lex_destroy().

int octave_get_column

(

yyscan_t

yyscanner

)

Get the current column number.

Parameters

yyscanner

The scanner object.

Definition at line 4061 of file lex.cc.

References YY_CURRENT_BUFFER, and yycolumn.

int octave_get_debug

(

yyscan_t

yyscanner

)

Definition at line 4166 of file lex.cc.

References yy_flex_debug.

octave_base_lexer * octave_get_extra

(

yyscan_t

yyscanner

)

Get the user-defined data for this scanner.

Parameters

yyscanner

The scanner object.

Definition at line 4039 of file lex.cc.

References yyextra.

FILE * octave_get_in

(

yyscan_t

yyscanner

)

Get the input stream.

Parameters

yyscanner

The scanner object.

Definition at line 4074 of file lex.cc.

References yyin.

yy_size_t octave_get_leng

(

yyscan_t

yyscanner

)

Get the length of the current token.

Parameters

yyscanner

The scanner object.

Definition at line 4092 of file lex.cc.

References yyleng.

Referenced by octave_base_lexer::flex_yyleng().

int octave_get_lineno

(

yyscan_t

yyscanner

)

Get the current line number.

Parameters

yyscanner

The scanner object.

Definition at line 4048 of file lex.cc.

References YY_CURRENT_BUFFER, and yylineno.

OCTAVE_STYPE * octave_get_lval

(

yyscan_t

yyscanner

)

Definition at line 4180 of file lex.cc.

References yylval.

Referenced by octave_base_lexer::current_token(), and octave_base_lexer::push_token().

FILE * octave_get_out

(

yyscan_t

yyscanner

)

Get the output stream.

Parameters

yyscanner

The scanner object.

Definition at line 4083 of file lex.cc.

References yyout.

char * octave_get_text

(

yyscan_t

yyscanner

)

Get the current token.

Parameters

yyscanner

The scanner object.

Definition at line 4102 of file lex.cc.

References yytext.

Referenced by octave_base_lexer::flex_yytext().

int octave_lex	(	OCTAVE_STYPE *	yylval_param,
		yyscan_t	yyscanner
	)

The main scanner function which does all the work.

Definition at line 1318 of file lex.cc.

References ADD_EQ, AND_EQ, octave_comment_elt::block, BLOCK_COMMENT_START, CMD_OR_COMPUTED_ASSIGN_OP, CMD_OR_OP, CMD_OR_UNARY_OP, COMMAND_ARG_FINISH, COMMAND_START, curr_lexer, DIV_EQ, DQ_STRING, DQ_STRING_START, ECHO, EDIV, EDIV_EQ, ELEFTDIV, ELEFTDIV_EQ, EMINUS, EMUL, EMUL_EQ, octave_comment_elt::end_of_line, EOB_ACT_CONTINUE_SCAN, EOB_ACT_END_OF_FILE, EOB_ACT_LAST_MATCH, EPLUS, EPOW, EPOW_EQ, error(), EXPR_AND, EXPR_AND_AND, EXPR_EQ, EXPR_GE, EXPR_GT, EXPR_LE, EXPR_LT, EXPR_NE, EXPR_NOT, EXPR_OR, EXPR_OR_OR, FQ_IDENT_START, octave_comment_elt::full_line, HANDLE_IDENTIFIER, HANDLE_STRING_CONTINUATION, HERMITIAN, IMAG_NUM, INITIAL, INPUT_FILE, INPUT_FILE_START, LEFTDIV, LEFTDIV_EQ, LEXICAL_ERROR, LINE_COMMENT_START, LSHIFT, LSHIFT_EQ, MATRIX_START, MINUS_MINUS, MUL_EQ, NUM, octave__create_buffer(), octave__load_buffer_state(), octave_alloc(), octave_ensure_buffer_stack(), octave_wrap, OR_EQ, PLUS_PLUS, POW, POW_EQ, RSHIFT, RSHIFT_EQ, SQ_STRING, SQ_STRING_START, SUB_EQ, TRANSPOSE, undo_string_escape(), unput, warning_with_id(), yy_accept, yy_acclist, YY_AT_BOL, yy_base, YY_BREAK, YY_BUF_SIZE, YY_BUFFER_NEW, YY_BUFFER_NORMAL, yyguts_t::yy_c_buf_p, yy_chk, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, yy_def, yyguts_t::yy_did_buffer_switch_on_eof, YY_DO_BEFORE_ACTION, yy_ec, YY_END_OF_BUFFER, YY_FATAL_ERROR, yyguts_t::yy_full_lp, yyguts_t::yy_full_match, yyguts_t::yy_full_state, yy_get_next_buffer(), yy_get_previous_state(), yyguts_t::yy_hold_char, yyguts_t::yy_init, yyguts_t::yy_looking_for_trail_begin, yyguts_t::yy_lp, yy_meta, YY_MORE_ADJ, yyguts_t::yy_n_chars, YY_NEW_FILE, yy_nxt, YY_RESTORE_YY_MORE_OFFSET, YY_RULE_SETUP, YY_SC_TO_UI, YY_START, yyguts_t::yy_start, yyguts_t::yy_state_buf, YY_STATE_BUF_SIZE, YY_STATE_EOF, yyguts_t::yy_state_ptr, YY_TRAILING_HEAD_MASK, YY_TRAILING_MASK, yy_try_NUL_trans(), yyin, yyleng, yyless, yylval, yyout, and yytext.

Referenced by octave_push_parser::run().

int octave_lex_destroy

(

yyscan_t

yyscanner

)

Definition at line 4295 of file lex.cc.

References octave__delete_buffer(), octave_free(), octave_pop_buffer_state(), yyguts_t::yy_buffer_stack, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, yy_init_globals(), yyguts_t::yy_start_stack, and yyguts_t::yy_state_buf.

Referenced by octave_base_lexer::~octave_base_lexer().

int octave_lex_init

(

yyscan_t *

scanner

)

Definition at line 4199 of file lex.cc.

References octave_alloc(), and yy_init_globals().

Referenced by octave_base_lexer::init().

int octave_lex_init_extra	(	octave_base_lexer *	user_defined,
		yyscan_t *	scanner
	)

Definition at line 4228 of file lex.cc.

References octave_alloc(), octave_set_extra(), and yy_init_globals().

void octave_pop_buffer_state

(

yyscan_t

yyscanner

)

Removes and deletes the top of the stack, if present.

The next element becomes the new top.

Parameters

yyscanner

The scanner object.

Definition at line 3857 of file lex.cc.

References octave__delete_buffer(), octave__load_buffer_state(), yyguts_t::yy_buffer_stack_top, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, and yyguts_t::yy_did_buffer_switch_on_eof.

Referenced by octave_lex_destroy().

void octave_push_buffer_state	(	YY_BUFFER_STATE	new_buffer,
		yyscan_t	yyscanner
	)

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.
yyscanner	The scanner object.

Definition at line 3826 of file lex.cc.

References octave__load_buffer_state(), octave_ensure_buffer_stack(), yyguts_t::yy_buffer_stack_top, yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, yyguts_t::yy_did_buffer_switch_on_eof, yyguts_t::yy_hold_char, and yyguts_t::yy_n_chars.

void * octave_realloc	(	void *	ptr,
		yy_size_t	size,
		yyscan_t	yyscanner
	)

Definition at line 4364 of file lex.cc.

Referenced by octave_ensure_buffer_stack(), and yy_get_next_buffer().

void octave_restart	(	FILE *	input_file,
		yyscan_t	yyscanner
	)

Immediately switch to a different input stream.

Parameters

input_file	A readable stream.
yyscanner	The scanner object.

Note

This function does not reset the start condition to INITIAL .

Definition at line 3654 of file lex.cc.

References octave__create_buffer(), octave__init_buffer(), octave__load_buffer_state(), octave_ensure_buffer_stack(), YY_BUF_SIZE, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, and yyin.

Referenced by input(), octave_base_lexer::reset(), and yy_get_next_buffer().

void octave_set_column	(	int	column_no,
		yyscan_t	yyscanner
	)

Set the current column.

Parameters

line_number
yyscanner	The scanner object.

Definition at line 4137 of file lex.cc.

References YY_CURRENT_BUFFER, YY_FATAL_ERROR, and yycolumn.

void octave_set_debug	(	int	debug_flag,
		yyscan_t	yyscanner
	)

Definition at line 4172 of file lex.cc.

References yy_flex_debug.

void octave_set_extra	(	octave_base_lexer *	user_defined,
		yyscan_t	yyscanner
	)

Set the user-defined data.

This data is never touched by the scanner.

Parameters

user_defined	The data to be associated with this scanner.
yyscanner	The scanner object.

Definition at line 4112 of file lex.cc.

References yyextra.

Referenced by octave_base_lexer::init(), and octave_lex_init_extra().

void octave_set_in	(	FILE *	in_str,
		yyscan_t	yyscanner
	)

Set the input stream.

This does not discard the current input buffer.

Parameters

in_str	A readable stream.
yyscanner	The scanner object.

See also

octave__switch_to_buffer

Definition at line 4154 of file lex.cc.

References yyin.

void octave_set_lineno	(	int	line_number,
		yyscan_t	yyscanner
	)

Set the current line number.

Parameters

line_number
yyscanner	The scanner object.

Definition at line 4122 of file lex.cc.

References YY_CURRENT_BUFFER, YY_FATAL_ERROR, and yylineno.

void octave_set_lval	(	OCTAVE_STYPE *	yylval_param,
		yyscan_t	yyscanner
	)

Definition at line 4186 of file lex.cc.

References yylval.

void octave_set_out	(	FILE *	out_str,
		yyscan_t	yyscanner
	)

Definition at line 4160 of file lex.cc.

References yyout.

static void yy_fatal_error ( char  msg[], yyscan_t  yyscanner  )

static

Referenced by octave_base_lexer::fatal_error().

static void yy_fatal_error ( char *  msg, yyscan_t  yyscanner  )

static

Definition at line 4011 of file lex.cc.

References YY_EXIT_FAILURE.

static int yy_get_next_buffer ( yyscan_t  yyscanner )

static

Definition at line 3374 of file lex.cc.

References EOB_ACT_CONTINUE_SCAN, EOB_ACT_END_OF_FILE, EOB_ACT_LAST_MATCH, octave_realloc(), octave_restart(), YY_BUFFER_EOF_PENDING, yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER_LVALUE, YY_END_OF_BUFFER_CHAR, YY_FATAL_ERROR, YY_INPUT, YY_MORE_ADJ, yyguts_t::yy_n_chars, YY_READ_BUF_SIZE, and yyin.

Referenced by input(), and octave_lex().

static yy_state_type yy_get_previous_state ( yyscan_t  yyscanner )

static

Definition at line 3480 of file lex.cc.

References YY_AT_BOL, yy_base, yyguts_t::yy_c_buf_p, yy_chk, yy_def, yy_ec, yy_meta, YY_MORE_ADJ, yy_nxt, YY_SC_TO_UI, yyguts_t::yy_start, yyguts_t::yy_state_buf, and yyguts_t::yy_state_ptr.

Referenced by octave_lex().

static int yy_init_globals ( yyscan_t  yyscanner )

static

Definition at line 4256 of file lex.cc.

References yyguts_t::yy_buffer_stack, yyguts_t::yy_buffer_stack_max, yyguts_t::yy_buffer_stack_top, yyguts_t::yy_c_buf_p, yyguts_t::yy_full_match, yyguts_t::yy_init, yyguts_t::yy_lp, yyguts_t::yy_start, yyguts_t::yy_start_stack, yyguts_t::yy_start_stack_depth, yyguts_t::yy_start_stack_ptr, yyguts_t::yy_state_buf, yyguts_t::yy_state_ptr, yyin, and yyout.

Referenced by octave_lex_destroy(), octave_lex_init(), and octave_lex_init_extra().

static yy_state_type yy_try_NUL_trans ( yy_state_type  current_state, yyscan_t  yyscanner  )

static

Definition at line 3513 of file lex.cc.

References yy_base, yy_chk, yy_def, yy_meta, yy_nxt, and yyguts_t::yy_state_ptr.

Referenced by octave_lex().

static void yyunput ( int  c, char *  buf_ptr, yyscan_t  yyscanner  )

static

Referenced by octave_base_lexer::xunput().

static void yyunput ( int  c, register char *  yy_bp, yyscan_t  yyscanner  )

static

Definition at line 3534 of file lex.cc.

References yyguts_t::yy_c_buf_p, YY_CURRENT_BUFFER_LVALUE, YY_FATAL_ERROR, yyguts_t::yy_hold_char, and yyguts_t::yy_n_chars.

Variable Documentation

bool lexer_debug_flag = false

static

Definition at line 1059 of file lex.cc.

Referenced by F__lexer_debug_flag__(), octave_base_lexer::lexer_debug(), octave_base_lexer::show_token(), octave_base_lexer::text_yyinput(), and octave_base_lexer::xunput().

bool Vdisplay_tokens = false

static

Definition at line 1054 of file lex.cc.

Referenced by octave_base_lexer::show_token().

unsigned int Vtoken_count = 0

static

Definition at line 1056 of file lex.cc.

Referenced by octave_base_lexer::count_token_internal(), and F__token_count__().

flex_int16_t yy_accept[265]

static

Definition at line 420 of file lex.cc.

Referenced by octave_lex().

flex_int16_t yy_acclist[356]

static

Definition at line 377 of file lex.cc.

Referenced by octave_lex().

flex_int16_t yy_base[296]

static

Definition at line 495 of file lex.cc.

Referenced by octave_lex(), yy_get_previous_state(), and yy_try_NUL_trans().

flex_int16_t yy_chk[773]

static

Definition at line 658 of file lex.cc.

Referenced by octave_lex(), yy_get_previous_state(), and yy_try_NUL_trans().

flex_int16_t yy_def[296]

static

Definition at line 532 of file lex.cc.

Referenced by octave_lex(), yy_get_previous_state(), and yy_try_NUL_trans().

flex_int32_t yy_ec[256]

static

Definition at line 453 of file lex.cc.

Referenced by octave_lex(), and yy_get_previous_state().

flex_int32_t yy_meta[52]

static

Initial value:

=
    {   0,
        1,    2,    3,    3,    1,    4,    2,    5,    1,    6,
        2,    2,    1,    1,    2,    1,    7,    1,    8,    8,
        8,    1,    2,    1,    1,    1,    1,    9,   10,   10,
        5,    5,    2,   11,    2,    1,   10,   10,   10,   10,
        5,    5,    5,    5,    5,    5,    5,    2,    1,    2,
        1
    }

Definition at line 485 of file lex.cc.

Referenced by octave_lex(), yy_get_previous_state(), and yy_try_NUL_trans().

flex_int16_t yy_nxt[773]

static

Definition at line 569 of file lex.cc.

Referenced by octave_lex(), yy_get_previous_state(), and yy_try_NUL_trans().