Fri Aug 17 00:17:25 2018

Asterisk developer's documentation


ast_expr2f.c File Reference

Dialplan Expression Lexical Scanner. More...

#include "asterisk.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/types.h>
#include <locale.h>
#include <ctype.h>
#include <regex.h>
#include <limits.h>
#include "asterisk/ast_expr.h"
#include "asterisk/logger.h"
#include "asterisk/strings.h"
#include "asterisk/channel.h"
#include "ast_expr2.h"
#include <unistd.h>

Go to the source code of this file.

Data Structures

struct  parse_io
struct  val
struct  yy_buffer_state
struct  yy_trans_info
struct  yyguts_t

Defines

#define ast_yywrap(n)   1
#define BEGIN   yyg->yy_start = 1 + 2 *
#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 FP___FMOD   fmod
#define FP___PRINTF   "%.16g"
#define FP___STRTOD   strtod
#define FP___TYPE   double
#define INITIAL   0
#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 REJECT   reject_used_but_not_detected
#define SET_COLUMNS
#define SET_NUMERIC_STRING
#define SET_STRING
#define trail   2
#define UINT16_MAX   (65535U)
#define UINT32_MAX   (4294967295U)
#define UINT8_MAX   (255U)
#define unput(c)   yyunput( c, yyg->yytext_ptr , yyscanner )
#define var   1
#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   39
#define YY_END_OF_BUFFER_CHAR   0
#define YY_EXIT_FAILURE   2
#define YY_EXTRA_TYPE   void *
#define YY_FATAL_ERROR(msg)   yy_fatal_error( msg , yyscanner)
#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   35
#define YY_FLUSH_BUFFER   ast_yy_flush_buffer(YY_CURRENT_BUFFER ,yyscanner)
#define YY_INPUT(buf, result, max_size)
#define YY_INT_ALIGNED   short int
#define YY_LESS_LINENO(n)
#define YY_MORE_ADJ   yyg->yy_more_len
#define yy_new_buffer   ast_yy_create_buffer
#define YY_NEW_FILE   ast_yyrestart(yyin ,yyscanner )
#define YY_NULL   0
#define YY_NUM_RULES   38
#define YY_READ_BUF_SIZE   8192
#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)
#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 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 yylloc   yyg->yylloc_r
#define yylval   yyg->yylval_r
#define yymore()   (yyg->yy_more_flag = 1)
#define yyout   yyg->yyout_r
#define YYSTATE   YY_START
#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_stateYY_BUFFER_STATE
typedef unsigned char YY_CHAR
typedef size_t yy_size_t
typedef int yy_state_type
typedef void * yyscan_t

Enumerations

enum  valtype {
  AST_EXPR_number, AST_EXPR_numeric_string, AST_EXPR_string, AST_EXPR_number,
  AST_EXPR_numeric_string, AST_EXPR_string
}

Functions

int ast_expr (char *expr, char *buf, int length, struct ast_channel *chan)
 Evaluate the given expression.
void ast_expr_clear_extra_error_info (void)
void ast_expr_register_extra_error_info (char *message)
int ast_str_expr (struct ast_str **str, ssize_t maxlen, struct ast_channel *chan, char *expr)
 Evaluate the given expression.
YY_BUFFER_STATE ast_yy_create_buffer (FILE *file, int size, yyscan_t yyscanner)
void ast_yy_delete_buffer (YY_BUFFER_STATE b, yyscan_t yyscanner)
void ast_yy_flush_buffer (YY_BUFFER_STATE b, yyscan_t yyscanner)
static void ast_yy_init_buffer (YY_BUFFER_STATE b, FILE *file, yyscan_t yyscanner)
static void ast_yy_load_buffer_state (yyscan_t yyscanner)
YY_BUFFER_STATE ast_yy_scan_buffer (char *base, yy_size_t size, yyscan_t yyscanner)
YY_BUFFER_STATE ast_yy_scan_bytes (yyconst char *bytes, int len, yyscan_t yyscanner)
YY_BUFFER_STATE ast_yy_scan_string (yyconst char *yy_str, yyscan_t yyscanner)
void ast_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer, yyscan_t yyscanner)
void * ast_yyalloc (yy_size_t, yyscan_t yyscanner)
static void ast_yyensure_buffer_stack (yyscan_t yyscanner)
int ast_yyerror (const char *s, yyltype *loc, struct parse_io *parseio)
int ast_yyerror (const char *, YYLTYPE *, struct parse_io *)
void ast_yyfree (void *, yyscan_t yyscanner)
int ast_yyget_column (yyscan_t yyscanner)
int ast_yyget_debug (yyscan_t yyscanner)
YY_EXTRA_TYPE ast_yyget_extra (yyscan_t yyscanner)
FILE * ast_yyget_in (yyscan_t yyscanner)
int ast_yyget_leng (yyscan_t yyscanner)
int ast_yyget_lineno (yyscan_t yyscanner)
YYLTYPE * ast_yyget_lloc (yyscan_t yyscanner)
YYSTYPEast_yyget_lval (yyscan_t yyscanner)
FILE * ast_yyget_out (yyscan_t yyscanner)
char * ast_yyget_text (yyscan_t yyscanner)
int ast_yylex (YYSTYPE *yylval_param, YYLTYPE *yylloc_param, yyscan_t yyscanner)
int ast_yylex_destroy (yyscan_t yyscanner)
int ast_yylex_init (yyscan_t *scanner)
int ast_yylex_init_extra (YY_EXTRA_TYPE user_defined, yyscan_t *scanner)
int ast_yyparse (void *)
void ast_yypop_buffer_state (yyscan_t yyscanner)
void ast_yypush_buffer_state (YY_BUFFER_STATE new_buffer, yyscan_t yyscanner)
void * ast_yyrealloc (void *, yy_size_t, yyscan_t yyscanner)
void ast_yyrestart (FILE *input_file, yyscan_t yyscanner)
void ast_yyset_column (int column_no, yyscan_t yyscanner)
void ast_yyset_debug (int debug_flag, yyscan_t yyscanner)
void ast_yyset_extra (YY_EXTRA_TYPE user_defined, yyscan_t yyscanner)
void ast_yyset_in (FILE *in_str, yyscan_t yyscanner)
void ast_yyset_lineno (int line_number, yyscan_t yyscanner)
void ast_yyset_lloc (YYLTYPE *yylloc_param, yyscan_t yyscanner)
void ast_yyset_lval (YYSTYPE *yylval_param, yyscan_t yyscanner)
void ast_yyset_out (FILE *out_str, yyscan_t yyscanner)
static char * expr2_token_subst (const char *mess)
static int input (yyscan_t yyscanner)
static void yy_fatal_error (yyconst char *msg, yyscan_t yyscanner)
static void yy_fatal_error (yyconst 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)

Variables

static int curlycount = 0
static const char *const expr2_token_equivs1 []
static const char *const expr2_token_equivs2 []
char extra_error_message [4095]
int extra_error_message_supplied = 0
static yyconst flex_int16_t yy_accept [63]
static yyconst flex_int16_t yy_base [70]
static yyconst flex_int16_t yy_chk [159]
static yyconst flex_int16_t yy_def [70]
static yyconst flex_int32_t yy_ec [256]
static yyconst flex_int32_t yy_meta [29]
static yyconst flex_int16_t yy_nxt [159]

Detailed Description

Dialplan Expression Lexical Scanner.

Definition in file ast_expr2f.c.


Define Documentation

#define ast_yywrap (  )     1

Definition at line 330 of file ast_expr2f.c.

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

Definition at line 144 of file ast_expr2f.c.

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

Definition at line 555 of file ast_expr2f.c.

Referenced by ast_hide_password(), and ast_restore_tty().

#define EOB_ACT_CONTINUE_SCAN   0

Definition at line 175 of file ast_expr2f.c.

#define EOB_ACT_END_OF_FILE   1

Definition at line 176 of file ast_expr2f.c.

#define EOB_ACT_LAST_MATCH   2

Definition at line 177 of file ast_expr2f.c.

#define FLEX_BETA

Definition at line 16 of file ast_expr2f.c.

#define FLEX_SCANNER

Definition at line 11 of file ast_expr2f.c.

#define FP___FMOD   fmod

Definition at line 528 of file ast_expr2f.c.

#define FP___PRINTF   "%.16g"

Definition at line 527 of file ast_expr2f.c.

#define FP___STRTOD   strtod

Definition at line 529 of file ast_expr2f.c.

#define FP___TYPE   double

Definition at line 530 of file ast_expr2f.c.

#define INITIAL   0

Definition at line 605 of file ast_expr2f.c.

#define INT16_MAX   (32767)

Definition at line 75 of file ast_expr2f.c.

Referenced by fsaturate().

#define INT16_MIN   (-32767-1)

Definition at line 66 of file ast_expr2f.c.

Referenced by fsaturate().

#define INT32_MAX   (2147483647)

Definition at line 78 of file ast_expr2f.c.

Referenced by ast_parse_arg().

#define INT32_MIN   (-2147483647-1)

Definition at line 69 of file ast_expr2f.c.

Referenced by ast_parse_arg().

#define INT8_MAX   (127)

Definition at line 72 of file ast_expr2f.c.

#define INT8_MIN   (-128)

Definition at line 63 of file ast_expr2f.c.

#define REJECT   reject_used_but_not_detected

Definition at line 481 of file ast_expr2f.c.

#define SET_COLUMNS
Value:
do {     \
   yylloc_param->first_column = (int)(yyg->yytext_r - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf); \
   yylloc_param->last_column += yyleng - 1; \
   yylloc_param->first_line = yylloc_param->last_line = 1; \
   } while (0)

Definition at line 572 of file ast_expr2f.c.

#define SET_NUMERIC_STRING
Value:
do {  \
   yylval_param->val = calloc(1, sizeof(struct val)); \
   yylval_param->val->type = AST_EXPR_numeric_string; \
   yylval_param->val->u.s = strdup(yytext);  \
   } while (0)

Definition at line 584 of file ast_expr2f.c.

#define SET_STRING
Value:
do {     \
   yylval_param->val = calloc(1, sizeof(struct val)); \
   yylval_param->val->type = AST_EXPR_string;      \
   yylval_param->val->u.s = strdup(yytext);     \
   } while (0)

Definition at line 578 of file ast_expr2f.c.

#define trail   2

Definition at line 607 of file ast_expr2f.c.

#define UINT16_MAX   (65535U)

Definition at line 84 of file ast_expr2f.c.

#define UINT32_MAX   (4294967295U)

Definition at line 87 of file ast_expr2f.c.

Referenced by ast_parse_arg().

#define UINT8_MAX   (255U)

Definition at line 81 of file ast_expr2f.c.

#define unput (  )     yyunput( c, yyg->yytext_ptr , yyscanner )

Definition at line 195 of file ast_expr2f.c.

#define var   1

Definition at line 606 of file ast_expr2f.c.

Referenced by __init_manager(), acf_iaxvar_read(), acf_iaxvar_write(), acf_sprintf(), add_cfg_entry(), add_rt_cfg_entry(), add_rt_multi_cfg_entry(), add_user_extension(), aji_load_config(), append_channel_vars(), apply_options(), apply_outgoing(), ast_bridge_timelimit(), ast_cdr_copy_vars(), ast_cdr_data_add_structure(), ast_cdr_serialize_variables(), ast_channeltype_list(), ast_config_text_file_save(), ast_http_get_post_vars(), ast_iax2_new(), ast_plc_reload(), ast_var_assign(), authenticate_reply(), build_event_channel(), build_extension(), build_profile(), clearvar_prefix(), cli_realtime_load(), conf_exec(), conf_run(), config_module(), console_cmd(), crement_function_read(), delete_extension(), find_conf(), find_conf_realtime(), find_realtime(), find_user_realtime(), free_channelvars(), function_realtime_read(), function_realtime_readdestroy(), get_insecure_variable_from_config(), get_insecure_variable_from_sippeers(), global_read(), gtalk_load_config(), handle_updates(), handle_uri(), http_post_callback(), iax2_call(), iax_parse_ies(), inherit_category(), init_logger_chain(), jingle_load_config(), ldap_loadentry(), ldap_table_config_add_attribute(), leave_queue(), load_config(), load_moh_classes(), local_ast_moh_start(), man_do_variable_value(), manager_sipnotify(), meetme_menu_admin_extended(), minivm_account_func_read(), move_variables(), odbc_load_module(), osp_create_provider(), parse_config(), parse_cookies(), pbx_builtin_serialize_variables(), pbx_substitute_variables_helper_full(), phoneprov_callback(), prep_email_sub_vars(), process_config(), process_text_line(), profile_destructor(), queue_function_queuewaitingcount(), realtime_alias(), realtime_common(), realtime_curl(), realtime_directory(), realtime_ldap(), realtime_ldap_entry_to_var(), realtime_ldap_result_to_vars(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), realtime_odbc(), realtime_peer(), realtime_peer_get_sippeer_helper(), realtime_pgsql(), realtime_switch_common(), realtime_user(), realtimefield_read(), reload(), reload_followme(), reload_module(), reload_single_queue(), rt_extend_conf(), set_config(), set_timezone_variables(), shared_read(), shared_variable_free(), shared_write(), shift_pop(), sip_cli_notify(), sla_build_station(), sla_build_trunk(), socket_process(), transmit_invite(), unload_module(), unshift_push(), vm_change_password(), and xml_translate().

 
#define YY_AT_BOL (  )     (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)

Definition at line 326 of file ast_expr2f.c.

#define YY_BREAK   break;

Definition at line 835 of file ast_expr2f.c.

#define YY_BUF_SIZE   16384

Definition at line 163 of file ast_expr2f.c.

#define YY_BUFFER_EOF_PENDING   2

Definition at line 262 of file ast_expr2f.c.

#define YY_BUFFER_NEW   0

Definition at line 250 of file ast_expr2f.c.

Referenced by ast_yy_flush_buffer(), and ast_yy_scan_buffer().

#define YY_BUFFER_NORMAL   1

Definition at line 251 of file ast_expr2f.c.

#define YY_CURRENT_BUFFER
Value:
( yyg->yy_buffer_stack \
                          ? yyg->yy_buffer_stack[yyg->yy_buffer_stack_top] \
                          : NULL)

Definition at line 273 of file ast_expr2f.c.

Referenced by ast_yy_flush_buffer(), ast_yy_init_buffer(), ast_yyget_column(), ast_yyget_lineno(), ast_yylex_destroy(), ast_yypop_buffer_state(), ast_yypush_buffer_state(), ast_yyset_column(), and ast_yyset_lineno().

#define YY_CURRENT_BUFFER_LVALUE   yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]
#define YY_DECL
Value:
int ast_yylex \
               (YYSTYPE * yylval_param, YYLTYPE * yylloc_param , yyscan_t yyscanner)

Definition at line 822 of file ast_expr2f.c.

#define YY_DECL_IS_OURS   1

Definition at line 817 of file ast_expr2f.c.

#define YY_DO_BEFORE_ACTION

Definition at line 347 of file ast_expr2f.c.

#define YY_END_OF_BUFFER   39

Definition at line 356 of file ast_expr2f.c.

#define YY_END_OF_BUFFER_CHAR   0

Definition at line 159 of file ast_expr2f.c.

Referenced by ast_yy_flush_buffer(), ast_yy_scan_buffer(), and ast_yy_scan_bytes().

#define YY_EXIT_FAILURE   2

Definition at line 2009 of file ast_expr2f.c.

Referenced by yy_fatal_error().

#define YY_EXTRA_TYPE   void *

Definition at line 618 of file ast_expr2f.c.

#define YY_FATAL_ERROR ( msg   )     yy_fatal_error( msg , yyscanner)

Definition at line 808 of file ast_expr2f.c.

Referenced by ast_yy_scan_buffer(), ast_yy_scan_bytes(), and ast_yyensure_buffer_stack().

#define yy_flex_debug   yyg->yy_flex_debug_r

Definition at line 138 of file ast_expr2f.c.

Referenced by ast_yyget_debug(), and ast_yyset_debug().

#define YY_FLEX_MAJOR_VERSION   2

Definition at line 12 of file ast_expr2f.c.

#define YY_FLEX_MINOR_VERSION   5

Definition at line 13 of file ast_expr2f.c.

#define YY_FLEX_SUBMINOR_VERSION   35

Definition at line 14 of file ast_expr2f.c.

#define YY_FLUSH_BUFFER   ast_yy_flush_buffer(YY_CURRENT_BUFFER ,yyscanner)

Definition at line 294 of file ast_expr2f.c.

#define YY_INPUT ( buf,
result,
max_size   ) 

Definition at line 761 of file ast_expr2f.c.

#define YY_INT_ALIGNED   short int

Definition at line 7 of file ast_expr2f.c.

#define YY_LESS_LINENO (  ) 

Definition at line 179 of file ast_expr2f.c.

#define YY_MORE_ADJ   yyg->yy_more_len

Definition at line 483 of file ast_expr2f.c.

#define yy_new_buffer   ast_yy_create_buffer

Definition at line 304 of file ast_expr2f.c.

#define YY_NEW_FILE   ast_yyrestart(yyin ,yyscanner )

Definition at line 157 of file ast_expr2f.c.

#define YY_NULL   0

Definition at line 114 of file ast_expr2f.c.

#define YY_NUM_RULES   38

Definition at line 355 of file ast_expr2f.c.

#define YY_READ_BUF_SIZE   8192

Definition at line 746 of file ast_expr2f.c.

#define YY_RESTORE_YY_MORE_OFFSET

Definition at line 484 of file ast_expr2f.c.

#define YY_RULE_SETUP   YY_USER_ACTION

Definition at line 838 of file ast_expr2f.c.

#define YY_SC_TO_UI (  )     ((unsigned int) (unsigned char) c)

Definition at line 121 of file ast_expr2f.c.

#define yy_set_bol ( at_bol   ) 

Definition at line 316 of file ast_expr2f.c.

#define yy_set_interactive ( is_interactive   ) 

Definition at line 306 of file ast_expr2f.c.

#define YY_SKIP_YYWRAP

Definition at line 331 of file ast_expr2f.c.

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

Definition at line 150 of file ast_expr2f.c.

#define YY_START_STACK_INCR   25

Definition at line 803 of file ast_expr2f.c.

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

Definition at line 168 of file ast_expr2f.c.

#define YY_STATE_EOF ( state   )     (YY_END_OF_BUFFER + state + 1)

Definition at line 154 of file ast_expr2f.c.

#define yycolumn   (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)

Definition at line 137 of file ast_expr2f.c.

Referenced by ast_yyget_column(), and ast_yyset_column().

#define yyconst

Definition at line 110 of file ast_expr2f.c.

#define yyextra   yyg->yyextra_r

Definition at line 133 of file ast_expr2f.c.

Referenced by ast_yyget_extra(), and ast_yyset_extra().

#define yyin   yyg->yyin_r

Definition at line 131 of file ast_expr2f.c.

Referenced by ast_yyget_in(), ast_yyset_in(), and yy_init_globals().

#define yyleng   yyg->yyleng_r

Definition at line 134 of file ast_expr2f.c.

Referenced by ast_yyget_leng().

#define yyless (  ) 

Definition at line 2021 of file ast_expr2f.c.

#define yyless (  ) 

Definition at line 2021 of file ast_expr2f.c.

#define yylineno   (YY_CURRENT_BUFFER_LVALUE->yy_bs_lineno)

Definition at line 136 of file ast_expr2f.c.

Referenced by ast_yyget_lineno(), and ast_yyset_lineno().

#define yylloc   yyg->yylloc_r

Definition at line 665 of file ast_expr2f.c.

#define yylval   yyg->yylval_r

Definition at line 663 of file ast_expr2f.c.

 
#define yymore (  )     (yyg->yy_more_flag = 1)

Definition at line 482 of file ast_expr2f.c.

#define yyout   yyg->yyout_r

Definition at line 132 of file ast_expr2f.c.

Referenced by ast_yyget_out(), ast_yyset_out(), and yy_init_globals().

#define YYSTATE   YY_START

Definition at line 151 of file ast_expr2f.c.

#define YYTABLES_NAME   "yytables"

Definition at line 2373 of file ast_expr2f.c.

 
#define yyterminate (  )     return YY_NULL

Definition at line 798 of file ast_expr2f.c.

#define yytext   yyg->yytext_r

Definition at line 135 of file ast_expr2f.c.

Referenced by ast_yyerror(), and ast_yyget_text().

#define yytext_ptr   yytext_r

Definition at line 337 of file ast_expr2f.c.


Typedef Documentation

typedef short int flex_int16_t

Definition at line 54 of file ast_expr2f.c.

typedef int flex_int32_t

Definition at line 55 of file ast_expr2f.c.

typedef signed char flex_int8_t

Definition at line 53 of file ast_expr2f.c.

typedef unsigned short int flex_uint16_t

Definition at line 57 of file ast_expr2f.c.

typedef unsigned int flex_uint32_t

Definition at line 58 of file ast_expr2f.c.

typedef unsigned char flex_uint8_t

Definition at line 56 of file ast_expr2f.c.

Definition at line 172 of file ast_expr2f.c.

typedef unsigned char YY_CHAR

Definition at line 333 of file ast_expr2f.c.

typedef size_t yy_size_t

Definition at line 199 of file ast_expr2f.c.

typedef int yy_state_type

Definition at line 335 of file ast_expr2f.c.

typedef void* yyscan_t

Definition at line 126 of file ast_expr2f.c.


Enumeration Type Documentation

enum valtype
Enumerator:
AST_EXPR_number 
AST_EXPR_numeric_string 
AST_EXPR_string 
AST_EXPR_number 
AST_EXPR_numeric_string 
AST_EXPR_string 

Definition at line 558 of file ast_expr2f.c.


Function Documentation

int ast_expr ( char *  expr,
char *  buf,
int  length,
struct ast_channel chan 
)

Evaluate the given expression.

Parameters:
expr An expression
buf Result buffer
length Size of the result buffer, in bytes
chan Channel to use for evaluating included dialplan functions, if any
Returns:
Length of the result string, in bytes

Definition at line 2396 of file ast_expr2f.c.

References ast_copy_string(), AST_EXPR_number, ast_yy_scan_string(), ast_yylex_destroy(), ast_yylex_init(), ast_yyparse(), FP___PRINTF, free, parse_io::scanner, and parse_io::string.

Referenced by check_pval_item(), and pbx_substitute_variables_helper_full().

02397 {
02398    struct parse_io io = { .string = expr, .chan = chan };
02399    int return_value = 0;
02400 
02401    ast_yylex_init(&io.scanner);
02402 
02403    ast_yy_scan_string(expr, io.scanner);
02404 
02405    ast_yyparse ((void *) &io);
02406 
02407    ast_yylex_destroy(io.scanner);
02408 
02409    if (!io.val) {
02410       if (length > 1) {
02411          strcpy(buf, "0");
02412          return_value = 1;
02413       }
02414    } else {
02415       if (io.val->type == AST_EXPR_number) {
02416          int res_length;
02417 
02418          res_length = snprintf(buf, length, FP___PRINTF, io.val->u.i);
02419          return_value = (res_length <= length) ? res_length : length;
02420       } else {
02421          if (io.val->u.s)
02422 #if defined(STANDALONE) || defined(LOW_MEMORY) || defined(STANDALONE)
02423             strncpy(buf, io.val->u.s, length - 1);
02424 #else /* !STANDALONE && !LOW_MEMORY */
02425             ast_copy_string(buf, io.val->u.s, length);
02426 #endif /* STANDALONE || LOW_MEMORY */
02427          else
02428             buf[0] = 0;
02429          return_value = strlen(buf);
02430          free(io.val->u.s);
02431       }
02432       free(io.val);
02433    }
02434    return return_value;
02435 }

void ast_expr_clear_extra_error_info ( void   ) 

Definition at line 2475 of file ast_expr2f.c.

Referenced by check_pval_item().

02476 {
02477        extra_error_message_supplied=0;
02478        extra_error_message[0] = 0;
02479 }

void ast_expr_register_extra_error_info ( char *  message  ) 

Definition at line 2469 of file ast_expr2f.c.

Referenced by check_pval_item().

02470 {
02471        extra_error_message_supplied=1;
02472        strcpy(extra_error_message, message);
02473 }

int ast_str_expr ( struct ast_str **  str,
ssize_t  maxlen,
struct ast_channel chan,
char *  expr 
)

Evaluate the given expression.

Parameters:
str Dynamic result buffer
maxlen <0 if the size of the buffer should remain constant, >0 if the size of the buffer should expand to that many bytes, maximum, or 0 for unlimited expansion of the result buffer
chan Channel to use for evaluating included dialplan functions, if any
expr An expression
Returns:
Length of the result string, in bytes

Definition at line 2438 of file ast_expr2f.c.

References AST_EXPR_number, ast_str_set(), ast_str_strlen(), ast_yy_scan_string(), ast_yylex_destroy(), ast_yylex_init(), ast_yyparse(), FP___PRINTF, free, parse_io::scanner, and parse_io::string.

Referenced by ast_str_substitute_variables_full().

02439 {
02440    struct parse_io io = { .string = expr, .chan = chan };
02441 
02442    ast_yylex_init(&io.scanner);
02443    ast_yy_scan_string(expr, io.scanner);
02444    ast_yyparse ((void *) &io);
02445    ast_yylex_destroy(io.scanner);
02446 
02447    if (!io.val) {
02448       ast_str_set(str, maxlen, "0");
02449    } else {
02450       if (io.val->type == AST_EXPR_number) {
02451          int res_length;
02452          ast_str_set(str, maxlen, FP___PRINTF, io.val->u.i);
02453       } else if (io.val->u.s) {
02454          ast_str_set(str, maxlen, "%s", io.val->u.s);
02455          free(io.val->u.s);
02456       }
02457       free(io.val);
02458    }
02459    return ast_str_strlen(*str);
02460 }

YY_BUFFER_STATE ast_yy_create_buffer ( FILE *  file,
int  size,
yyscan_t  yyscanner 
)
void ast_yy_delete_buffer ( YY_BUFFER_STATE  b,
yyscan_t  yyscanner 
)
void ast_yy_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 1797 of file ast_expr2f.c.

References ast_yy_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 ast_yy_init_buffer().

01798 {
01799     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01800    if ( ! b )
01801       return;
01802 
01803    b->yy_n_chars = 0;
01804 
01805    /* We always need two end-of-buffer characters.  The first causes
01806     * a transition to the end-of-buffer state.  The second causes
01807     * a jam in that state.
01808     */
01809    b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
01810    b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
01811 
01812    b->yy_buf_pos = &b->yy_ch_buf[0];
01813 
01814    b->yy_at_bol = 1;
01815    b->yy_buffer_status = YY_BUFFER_NEW;
01816 
01817    if ( b == YY_CURRENT_BUFFER )
01818       ast_yy_load_buffer_state(yyscanner );
01819 }

static void ast_yy_init_buffer ( YY_BUFFER_STATE  b,
FILE *  file,
yyscan_t  yyscanner 
) [static]

The main scanner function which does all the work.

Definition at line 1768 of file ast_expr2f.c.

References ast_yy_flush_buffer(), errno, 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.

01770 {
01771    int oerrno = errno;
01772     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01773 
01774    ast_yy_flush_buffer(b ,yyscanner);
01775 
01776    b->yy_input_file = file;
01777    b->yy_fill_buffer = 1;
01778 
01779     /* If b is the current buffer, then ast_yy_init_buffer was _probably_
01780      * called from ast_yyrestart() or through yy_get_next_buffer.
01781      * In that case, we don't want to reset the lineno or column.
01782      */
01783     if (b != YY_CURRENT_BUFFER){
01784         b->yy_bs_lineno = 1;
01785         b->yy_bs_column = 0;
01786     }
01787 
01788         b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
01789     
01790    errno = oerrno;
01791 }

static void ast_yy_load_buffer_state ( yyscan_t  yyscanner  )  [static]
YY_BUFFER_STATE ast_yy_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 1928 of file ast_expr2f.c.

References ast_yy_switch_to_buffer(), ast_yyalloc(), 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 ast_yy_scan_bytes().

01929 {
01930    YY_BUFFER_STATE b;
01931     
01932    if ( size < 2 ||
01933         base[size-2] != YY_END_OF_BUFFER_CHAR ||
01934         base[size-1] != YY_END_OF_BUFFER_CHAR )
01935       /* They forgot to leave room for the EOB's. */
01936       return 0;
01937 
01938    b = (YY_BUFFER_STATE) ast_yyalloc(sizeof( struct yy_buffer_state ) ,yyscanner );
01939    if ( ! b )
01940       YY_FATAL_ERROR( "out of dynamic memory in ast_yy_scan_buffer()" );
01941 
01942    b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
01943    b->yy_buf_pos = b->yy_ch_buf = base;
01944    b->yy_is_our_buffer = 0;
01945    b->yy_input_file = 0;
01946    b->yy_n_chars = b->yy_buf_size;
01947    b->yy_is_interactive = 0;
01948    b->yy_at_bol = 1;
01949    b->yy_fill_buffer = 0;
01950    b->yy_buffer_status = YY_BUFFER_NEW;
01951 
01952    ast_yy_switch_to_buffer(b ,yyscanner );
01953 
01954    return b;
01955 }

YY_BUFFER_STATE ast_yy_scan_bytes ( yyconst char *  yybytes,
int  _yybytes_len,
yyscan_t  yyscanner 
)

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

Parameters:
bytes the byte buffer to scan
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 1978 of file ast_expr2f.c.

References ast_yy_scan_buffer(), ast_yyalloc(), YY_END_OF_BUFFER_CHAR, YY_FATAL_ERROR, and yy_buffer_state::yy_is_our_buffer.

Referenced by ast_yy_scan_string().

01979 {
01980    YY_BUFFER_STATE b;
01981    char *buf;
01982    yy_size_t n;
01983    int i;
01984     
01985    /* Get memory for full buffer, including space for trailing EOB's. */
01986    n = _yybytes_len + 2;
01987    buf = (char *) ast_yyalloc(n ,yyscanner );
01988    if ( ! buf )
01989       YY_FATAL_ERROR( "out of dynamic memory in ast_yy_scan_bytes()" );
01990 
01991    for ( i = 0; i < _yybytes_len; ++i )
01992       buf[i] = yybytes[i];
01993 
01994    buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
01995 
01996    b = ast_yy_scan_buffer(buf,n ,yyscanner);
01997    if ( ! b )
01998       YY_FATAL_ERROR( "bad buffer in ast_yy_scan_bytes()" );
01999 
02000    /* It's okay to grow etc. this buffer, and we should throw it
02001     * away when we're done.
02002     */
02003    b->yy_is_our_buffer = 1;
02004 
02005    return b;
02006 }

YY_BUFFER_STATE ast_yy_scan_string ( yyconst char *  yystr,
yyscan_t  yyscanner 
)

Setup the input buffer state to scan a string. The next call to ast_yylex() 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 ast_yy_scan_bytes() instead.

Definition at line 1965 of file ast_expr2f.c.

References ast_yy_scan_bytes().

Referenced by ast_expr(), and ast_str_expr().

01966 {
01967     
01968    return ast_yy_scan_bytes(yystr,strlen(yystr) ,yyscanner);
01969 }

void ast_yy_switch_to_buffer ( YY_BUFFER_STATE  new_buffer,
yyscan_t  yyscanner 
)

Referenced by ast_yy_scan_buffer().

void * ast_yyalloc ( yy_size_t  size,
yyscan_t  yyscanner 
)

Definition at line 2356 of file ast_expr2f.c.

References malloc.

Referenced by ast_yy_scan_buffer(), ast_yy_scan_bytes(), ast_yyensure_buffer_stack(), ast_yylex_init(), and ast_yylex_init_extra().

02357 {
02358    return (void *) malloc( size );
02359 }

static void ast_yyensure_buffer_stack ( yyscan_t  yyscanner  )  [static]

Definition at line 1878 of file ast_expr2f.c.

References ast_yyalloc(), ast_yyrealloc(), yyguts_t::yy_buffer_stack, yyguts_t::yy_buffer_stack_max, yyguts_t::yy_buffer_stack_top, and YY_FATAL_ERROR.

Referenced by ast_yypush_buffer_state().

01879 {
01880    int num_to_alloc;
01881     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01882 
01883    if (!yyg->yy_buffer_stack) {
01884 
01885       /* First allocation is just for 2 elements, since we don't know if this
01886        * scanner will even need a stack. We use 2 instead of 1 to avoid an
01887        * immediate realloc on the next call.
01888          */
01889       num_to_alloc = 1;
01890       yyg->yy_buffer_stack = (struct yy_buffer_state**)ast_yyalloc
01891                         (num_to_alloc * sizeof(struct yy_buffer_state*)
01892                         , yyscanner);
01893       if ( ! yyg->yy_buffer_stack )
01894          YY_FATAL_ERROR( "out of dynamic memory in ast_yyensure_buffer_stack()" );
01895                           
01896       memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));
01897             
01898       yyg->yy_buffer_stack_max = num_to_alloc;
01899       yyg->yy_buffer_stack_top = 0;
01900       return;
01901    }
01902 
01903    if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
01904 
01905       /* Increase the buffer to prepare for a possible push. */
01906       int grow_size = 8 /* arbitrary grow size */;
01907 
01908       num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
01909       yyg->yy_buffer_stack = (struct yy_buffer_state**)ast_yyrealloc
01910                         (yyg->yy_buffer_stack,
01911                         num_to_alloc * sizeof(struct yy_buffer_state*)
01912                         , yyscanner);
01913       if ( ! yyg->yy_buffer_stack )
01914          YY_FATAL_ERROR( "out of dynamic memory in ast_yyensure_buffer_stack()" );
01915 
01916       /* zero only the new slots.*/
01917       memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
01918       yyg->yy_buffer_stack_max = num_to_alloc;
01919    }
01920 }

int ast_yyerror ( const char *  s,
yyltype loc,
struct parse_io parseio 
)

Definition at line 2578 of file ast_expr2f.c.

References ast_log(), expr2_token_subst(), free, LOG_WARNING, parse_io::scanner, parse_io::string, YY_CURRENT_BUFFER_LVALUE, and yytext.

02579 {  
02580    struct yyguts_t * yyg = (struct yyguts_t*)(parseio->scanner);
02581    char spacebuf[8000]; /* best safe than sorry */
02582    char spacebuf2[8000]; /* best safe than sorry */
02583    int i=0;
02584    char *s2 = expr2_token_subst(s);
02585    spacebuf[0] = 0;
02586    
02587    for(i=0;i< (int)(yytext - YY_CURRENT_BUFFER_LVALUE->yy_ch_buf);i++) spacebuf2[i] = ' ';  /* uh... assuming yyg is defined, then I can use the yycolumn macro,
02588                                                                         which is the same thing as... get this:
02589                                        yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]->yy_bs_column
02590                                        I was tempted to just use yy_buf_pos in the STATE, but..., well:
02591                                           a. the yy_buf_pos is the current position in the buffer, which
02592                                              may not relate to the entire string/buffer because of the
02593                                              buffering.
02594                                           b. but, analysis of the situation is that when you use the
02595                                              ast_yy_scan_string func, it creates a single buffer the size of
02596                                              string, so the two would be the same... 
02597                                        so, in the end, the yycolumn macro is available, shorter, therefore easier. */
02598    spacebuf2[i++]='^';
02599    spacebuf2[i]= 0;
02600 
02601 #ifdef STANDALONE3
02602    /* easier to read in the standalone version */
02603    printf("ast_yyerror(): %s syntax error: %s; Input:\n%s\n%s\n",  
02604          (extra_error_message_supplied?extra_error_message:""), s2, parseio->string,spacebuf2);
02605 #else
02606    ast_log(LOG_WARNING,"ast_yyerror(): %s syntax error: %s; Input:\n%s\n%s\n",  
02607          (extra_error_message_supplied?extra_error_message:""), s2, parseio->string,spacebuf2);
02608 #endif
02609 #ifndef STANDALONE
02610    ast_log(LOG_WARNING,"If you have questions, please refer to https://wiki.asterisk.org/wiki/display/AST/Channel+Variables\n");
02611 #endif
02612    free(s2);
02613    return(0);
02614 }

int ast_yyerror ( const char *  ,
YYLTYPE *  ,
struct parse_io  
)
void ast_yyfree ( void *  ptr,
yyscan_t  yyscanner 
)

Definition at line 2388 of file ast_expr2f.c.

References free.

Referenced by ast_yylex_destroy().

02389 {
02390     /* the normal generated ast_yyfree func just frees its first arg;
02391      this get complaints on some systems, as sometimes this
02392      arg is a nil ptr! It's usually not fatal, but is irritating! */
02393    free( (char *) ptr );
02394 }

int ast_yyget_column ( yyscan_t  yyscanner  ) 

Get the current column number.

Parameters:
yyscanner The scanner object.

Definition at line 2062 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, and yycolumn.

02063 {
02064     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02065     
02066         if (! YY_CURRENT_BUFFER)
02067             return 0;
02068     
02069     return yycolumn;
02070 }

int ast_yyget_debug ( yyscan_t  yyscanner  ) 

Definition at line 2167 of file ast_expr2f.c.

References yy_flex_debug.

02168 {
02169     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02170     return yy_flex_debug;
02171 }

YY_EXTRA_TYPE ast_yyget_extra ( yyscan_t  yyscanner  ) 

Get the user-defined data for this scanner.

Parameters:
yyscanner The scanner object.

Definition at line 2040 of file ast_expr2f.c.

References yyextra.

02041 {
02042     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02043     return yyextra;
02044 }

FILE * ast_yyget_in ( yyscan_t  yyscanner  ) 

Get the input stream.

Parameters:
yyscanner The scanner object.

Definition at line 2075 of file ast_expr2f.c.

References yyin.

02076 {
02077     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02078     return yyin;
02079 }

int ast_yyget_leng ( yyscan_t  yyscanner  ) 

Get the length of the current token.

Parameters:
yyscanner The scanner object.

Definition at line 2093 of file ast_expr2f.c.

References yyleng.

02094 {
02095     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02096     return yyleng;
02097 }

int ast_yyget_lineno ( yyscan_t  yyscanner  ) 

Get the current line number.

Parameters:
yyscanner The scanner object.

Definition at line 2049 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, and yylineno.

02050 {
02051     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02052     
02053         if (! YY_CURRENT_BUFFER)
02054             return 0;
02055     
02056     return yylineno;
02057 }

YYLTYPE * ast_yyget_lloc ( yyscan_t  yyscanner  ) 

Definition at line 2193 of file ast_expr2f.c.

References yylloc.

02194 {
02195     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02196     return yylloc;
02197 }

YYSTYPE * ast_yyget_lval ( yyscan_t  yyscanner  ) 

Definition at line 2181 of file ast_expr2f.c.

References yylval.

02182 {
02183     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02184     return yylval;
02185 }

FILE * ast_yyget_out ( yyscan_t  yyscanner  ) 

Get the output stream.

Parameters:
yyscanner The scanner object.

Definition at line 2084 of file ast_expr2f.c.

References yyout.

02085 {
02086     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02087     return yyout;
02088 }

char * ast_yyget_text ( yyscan_t  yyscanner  ) 

Get the current token.

Parameters:
yyscanner The scanner object.

Definition at line 2103 of file ast_expr2f.c.

References yytext.

02104 {
02105     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02106     return yytext;
02107 }

int ast_yylex ( YYSTYPE yylval_param,
YYLTYPE *  yylloc_param,
yyscan_t  yyscanner 
)
int ast_yylex_destroy ( yyscan_t  yyscanner  ) 

Definition at line 2303 of file ast_expr2f.c.

References ast_yy_delete_buffer(), ast_yyfree(), ast_yypop_buffer_state(), yyguts_t::yy_buffer_stack, YY_CURRENT_BUFFER, YY_CURRENT_BUFFER_LVALUE, yy_init_globals(), and yyguts_t::yy_start_stack.

Referenced by ast_expr(), and ast_str_expr().

02304 {
02305     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02306 
02307     /* Pop the buffer stack, destroying each element. */
02308    while(YY_CURRENT_BUFFER){
02309       ast_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner );
02310       YY_CURRENT_BUFFER_LVALUE = NULL;
02311       ast_yypop_buffer_state(yyscanner);
02312    }
02313 
02314    /* Destroy the stack itself. */
02315    ast_yyfree(yyg->yy_buffer_stack ,yyscanner);
02316    yyg->yy_buffer_stack = NULL;
02317 
02318     /* Destroy the start condition stack. */
02319         ast_yyfree(yyg->yy_start_stack ,yyscanner );
02320         yyg->yy_start_stack = NULL;
02321 
02322     /* Reset the globals. This is important in a non-reentrant scanner so the next time
02323      * ast_yylex() is called, initialization will occur. */
02324     yy_init_globals( yyscanner);
02325 
02326     /* Destroy the main struct (reentrant only). */
02327     ast_yyfree ( yyscanner , yyscanner );
02328     yyscanner = NULL;
02329     return 0;
02330 }

int ast_yylex_init ( yyscan_t scanner  ) 

Definition at line 2212 of file ast_expr2f.c.

References ast_yyalloc(), errno, and yy_init_globals().

Referenced by ast_expr(), and ast_str_expr().

02214 {
02215     if (ptr_yy_globals == NULL){
02216         errno = EINVAL;
02217         return 1;
02218     }
02219 
02220     *ptr_yy_globals = (yyscan_t) ast_yyalloc ( sizeof( struct yyguts_t ), NULL );
02221 
02222     if (*ptr_yy_globals == NULL){
02223         errno = ENOMEM;
02224         return 1;
02225     }
02226 
02227     /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
02228     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
02229 
02230     return yy_init_globals ( *ptr_yy_globals );
02231 }

int ast_yylex_init_extra ( YY_EXTRA_TYPE  user_defined,
yyscan_t scanner 
)

Definition at line 2241 of file ast_expr2f.c.

References ast_yyalloc(), ast_yyset_extra(), errno, and yy_init_globals().

02243 {
02244     struct yyguts_t dummy_yyguts;
02245 
02246     ast_yyset_extra (yy_user_defined, &dummy_yyguts);
02247 
02248     if (ptr_yy_globals == NULL){
02249         errno = EINVAL;
02250         return 1;
02251     }
02252    
02253     *ptr_yy_globals = (yyscan_t) ast_yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts );
02254    
02255     if (*ptr_yy_globals == NULL){
02256         errno = ENOMEM;
02257         return 1;
02258     }
02259     
02260     /* By setting to 0xAA, we expose bugs in
02261     yy_init_globals. Leave at 0x00 for releases. */
02262     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
02263     
02264     ast_yyset_extra (yy_user_defined, *ptr_yy_globals);
02265     
02266     return yy_init_globals ( *ptr_yy_globals );
02267 }

int ast_yyparse ( void *   ) 

Referenced by ast_expr(), and ast_str_expr().

void ast_yypop_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 1858 of file ast_expr2f.c.

References ast_yy_delete_buffer(), ast_yy_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 ast_yylex_destroy().

01859 {
01860     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01861    if (!YY_CURRENT_BUFFER)
01862       return;
01863 
01864    ast_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner);
01865    YY_CURRENT_BUFFER_LVALUE = NULL;
01866    if (yyg->yy_buffer_stack_top > 0)
01867       --yyg->yy_buffer_stack_top;
01868 
01869    if (YY_CURRENT_BUFFER) {
01870       ast_yy_load_buffer_state(yyscanner );
01871       yyg->yy_did_buffer_switch_on_eof = 1;
01872    }
01873 }

void ast_yypush_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 1827 of file ast_expr2f.c.

References ast_yy_load_buffer_state(), ast_yyensure_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.

01828 {
01829     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01830    if (new_buffer == NULL)
01831       return;
01832 
01833    ast_yyensure_buffer_stack(yyscanner);
01834 
01835    /* This block is copied from ast_yy_switch_to_buffer. */
01836    if ( YY_CURRENT_BUFFER )
01837       {
01838       /* Flush out information for old buffer. */
01839       *yyg->yy_c_buf_p = yyg->yy_hold_char;
01840       YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
01841       YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
01842       }
01843 
01844    /* Only push if top exists. Otherwise, replace top. */
01845    if (YY_CURRENT_BUFFER)
01846       yyg->yy_buffer_stack_top++;
01847    YY_CURRENT_BUFFER_LVALUE = new_buffer;
01848 
01849    /* copied from ast_yy_switch_to_buffer. */
01850    ast_yy_load_buffer_state(yyscanner );
01851    yyg->yy_did_buffer_switch_on_eof = 1;
01852 }

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

Definition at line 2361 of file ast_expr2f.c.

References realloc.

Referenced by ast_yyensure_buffer_stack().

02362 {
02363    /* The cast to (char *) in the following accommodates both
02364     * implementations that use char* generic pointers, and those
02365     * that use void* generic pointers.  It works with the latter
02366     * because both ANSI C and C++ allow castless assignment from
02367     * any pointer type to void*, and deal with argument conversions
02368     * as though doing an assignment.
02369     */
02370    return (void *) realloc( (char *) ptr, size );
02371 }

void ast_yyrestart ( FILE *  input_file,
yyscan_t  yyscanner 
)
void ast_yyset_column ( int  column_no,
yyscan_t  yyscanner 
)

Set the current column.

Parameters:
line_number 
yyscanner The scanner object.

Definition at line 2138 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, yy_fatal_error(), and yycolumn.

02139 {
02140     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02141 
02142         /* column is only valid if an input buffer exists. */
02143         if (! YY_CURRENT_BUFFER )
02144            yy_fatal_error( "ast_yyset_column called with no buffer" , yyscanner); 
02145     
02146     yycolumn = column_no;
02147 }

void ast_yyset_debug ( int  debug_flag,
yyscan_t  yyscanner 
)

Definition at line 2173 of file ast_expr2f.c.

References yy_flex_debug.

02174 {
02175     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02176     yy_flex_debug = bdebug ;
02177 }

void ast_yyset_extra ( YY_EXTRA_TYPE  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 2113 of file ast_expr2f.c.

References yyextra.

Referenced by ast_yylex_init_extra().

02114 {
02115     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02116     yyextra = user_defined ;
02117 }

void ast_yyset_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:
ast_yy_switch_to_buffer

Definition at line 2155 of file ast_expr2f.c.

References yyin.

02156 {
02157     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02158     yyin = in_str ;
02159 }

void ast_yyset_lineno ( int  line_number,
yyscan_t  yyscanner 
)

Set the current line number.

Parameters:
line_number 
yyscanner The scanner object.

Definition at line 2123 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, yy_fatal_error(), and yylineno.

02124 {
02125     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02126 
02127         /* lineno is only valid if an input buffer exists. */
02128         if (! YY_CURRENT_BUFFER )
02129            yy_fatal_error( "ast_yyset_lineno called with no buffer" , yyscanner); 
02130     
02131     yylineno = line_number;
02132 }

void ast_yyset_lloc ( YYLTYPE *  yylloc_param,
yyscan_t  yyscanner 
)

Definition at line 2199 of file ast_expr2f.c.

References yylloc.

02200 {
02201     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02202     yylloc = yylloc_param;
02203 }

void ast_yyset_lval ( YYSTYPE yylval_param,
yyscan_t  yyscanner 
)

Definition at line 2187 of file ast_expr2f.c.

References yylval.

02188 {
02189     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02190     yylval = yylval_param;
02191 }

void ast_yyset_out ( FILE *  out_str,
yyscan_t  yyscanner 
)

Definition at line 2161 of file ast_expr2f.c.

References yyout.

02162 {
02163     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02164     yyout = out_str ;
02165 }

static char * expr2_token_subst ( const char *  mess  )  [static]

Definition at line 2534 of file ast_expr2f.c.

References len(), and malloc.

Referenced by ast_yyerror().

02535 {
02536    /* calc a length, malloc, fill, and return; yyerror had better free it! */
02537    int len=0,i;
02538    const char *p;
02539    char *res, *s;
02540    const char *t;
02541    int expr2_token_equivs_entries = sizeof(expr2_token_equivs1)/sizeof(char*);
02542 
02543    for (p=mess; *p; p++) {
02544       for (i=0; i<expr2_token_equivs_entries; i++) {
02545          if ( strncmp(p,expr2_token_equivs1[i],strlen(expr2_token_equivs1[i])) == 0 )
02546          {
02547             len+=strlen(expr2_token_equivs2[i])+2;
02548             p += strlen(expr2_token_equivs1[i])-1;
02549             break;
02550          }
02551       }
02552       len++;
02553    }
02554    res = (char*)malloc(len+1);
02555    res[0] = 0;
02556    s = res;
02557    for (p=mess; *p;) {
02558       int found = 0;
02559       for (i=0; i<expr2_token_equivs_entries; i++) {
02560          if ( strncmp(p,expr2_token_equivs1[i],strlen(expr2_token_equivs1[i])) == 0 ) {
02561             *s++ = '\'';
02562             for (t=expr2_token_equivs2[i]; *t;) {
02563                *s++ = *t++;
02564             }
02565             *s++ = '\'';
02566             p += strlen(expr2_token_equivs1[i]);
02567             found = 1;
02568             break;
02569          }
02570       }
02571       if( !found )
02572          *s++ = *p++;
02573    }
02574    *s++ = 0;
02575    return res;
02576 }

static int input ( yyscan_t  yyscanner  )  [static]

Referenced by eivr_comm().

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

Definition at line 2012 of file ast_expr2f.c.

References YY_EXIT_FAILURE.

02013 {
02014       (void) fprintf( stderr, "%s\n", msg );
02015    exit( YY_EXIT_FAILURE );
02016 }

static void yy_fatal_error ( yyconst char  msg[],
yyscan_t  yyscanner 
) [static]
static int yy_get_next_buffer ( yyscan_t  yyscanner  )  [static]
static yy_state_type yy_get_previous_state ( yyscan_t  yyscanner  )  [static]
static int yy_init_globals ( yyscan_t  yyscanner  )  [static]

Definition at line 2269 of file ast_expr2f.c.

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_init, yyguts_t::yy_start, yyguts_t::yy_start_stack, yyguts_t::yy_start_stack_depth, yyguts_t::yy_start_stack_ptr, yyin, and yyout.

Referenced by ast_yylex_destroy(), ast_yylex_init(), and ast_yylex_init_extra().

02270 {
02271     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02272     /* Initialization is the same as for the non-reentrant scanner.
02273      * This function is called from ast_yylex_destroy(), so don't allocate here.
02274      */
02275 
02276     yyg->yy_buffer_stack = 0;
02277     yyg->yy_buffer_stack_top = 0;
02278     yyg->yy_buffer_stack_max = 0;
02279     yyg->yy_c_buf_p = (char *) 0;
02280     yyg->yy_init = 0;
02281     yyg->yy_start = 0;
02282 
02283     yyg->yy_start_stack_ptr = 0;
02284     yyg->yy_start_stack_depth = 0;
02285     yyg->yy_start_stack =  NULL;
02286 
02287 /* Defined in main.c */
02288 #ifdef YY_STDINIT
02289     yyin = stdin;
02290     yyout = stdout;
02291 #else
02292     yyin = (FILE *) 0;
02293     yyout = (FILE *) 0;
02294 #endif
02295 
02296     /* For future reference: Set errno on error, since we are called by
02297      * ast_yylex_init()
02298      */
02299     return 0;
02300 }

static yy_state_type yy_try_NUL_trans ( yy_state_type  current_state,
yyscan_t  yyscanner 
) [static]
static void yyunput ( int  c,
char *  buf_ptr,
yyscan_t  yyscanner 
) [static]

Variable Documentation

int curlycount = 0 [static]

Definition at line 600 of file ast_expr2f.c.

const char* const expr2_token_equivs1[] [static]

Definition at line 2481 of file ast_expr2f.c.

const char* const expr2_token_equivs2[] [static]

Definition at line 2507 of file ast_expr2f.c.

char extra_error_message[4095]

Definition at line 2464 of file ast_expr2f.c.

Definition at line 2465 of file ast_expr2f.c.

yyconst flex_int16_t yy_accept[63] [static]

Definition at line 364 of file ast_expr2f.c.

yyconst flex_int16_t yy_base[70] [static]

Definition at line 414 of file ast_expr2f.c.

yyconst flex_int16_t yy_chk[159] [static]

Definition at line 457 of file ast_expr2f.c.

yyconst flex_int16_t yy_def[70] [static]

Definition at line 425 of file ast_expr2f.c.

yyconst flex_int32_t yy_ec[256] [static]

Definition at line 375 of file ast_expr2f.c.

yyconst flex_int32_t yy_meta[29] [static]

Definition at line 407 of file ast_expr2f.c.

yyconst flex_int16_t yy_nxt[159] [static]

Definition at line 436 of file ast_expr2f.c.


Generated on 17 Aug 2018 for Asterisk - The Open Source Telephony Project by  doxygen 1.6.1