Mon Jun 27 16:51:02 2011

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   fwrite( yytext, yyleng, 1, yyout )
#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 fwrite(a, b, c, d)   do { int __res = fwrite(a,b,c,d); (__res); } while (0)
#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 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 }

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)
YYLTYPEast_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   fwrite( yytext, yyleng, 1, yyout )

Definition at line 750 of file ast_expr2f.c.

Referenced by ast_hide_password(), ast_restore_tty(), and openserial().

#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 fwrite ( a,
b,
c,
 )     do { int __res = fwrite(a,b,c,d); (__res); } while (0)

Note:
The latest Flex uses fwrite without checking its return value, which is a warning on some compilers. Therefore, we use this workaround, to trick the compiler into suppressing this warning.

Definition at line 556 of file ast_expr2f.c.

Referenced by ast_careful_fwrite(), ast_http_send(), file_write(), g719write(), g723_write(), g726_write(), g729_write(), gsm_seek(), gsm_write(), h263_write(), h264_write(), ilbc_write(), ogg_vorbis_rewrite(), pcm_seek(), pcm_write(), readmimefile(), siren14write(), siren7write(), slinear_write(), update_header(), usbradio_read(), usbradio_write(), vox_write(), wav_close(), wav_seek(), wav_write(), write_entry_history(), write_header(), write_history(), and write_stream().

#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.

#define INT32_MIN   (-2147483647-1)

Definition at line 69 of file ast_expr2f.c.

#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.

#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_create_client(), aji_load_config(), append_channel_vars(), append_mailbox_mapping(), apply_general_options(), apply_options(), apply_options_full(), 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(), ast_var_delete(), ast_var_full_name(), ast_var_name(), ast_var_value(), astman_get_variables(), authenticate_reply(), build_event_channel(), build_extension(), build_parkinglot(), build_profile(), clearvar_prefix(), cli_realtime_load(), conf_exec(), conf_run(), config_module(), console_cmd(), copy_plain_file(), create_vmaccount(), 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_name_from_variable(), global_read(), gtalk_create_member(), gtalk_load_config(), handle_updates(), handle_uri(), http_post_callback(), iax2_call(), iax_parse_ies(), inherit_category(), init_logger_chain(), jingle_create_member(), jingle_load_config(), ldap_loadentry(), ldap_table_config_add_attribute(), leave_queue(), load_config(), load_moh_classes(), local_ast_moh_start(), manager_sipnotify(), message_template_build(), 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_text_line(), profile_destructor(), queue_function_queuewaitingcount(), realtime_alias(), realtime_canmatch(), realtime_common(), realtime_curl(), realtime_directory(), realtime_exec(), realtime_exists(), realtime_ldap(), realtime_ldap_entry_to_var(), realtime_ldap_result_to_vars(), realtime_matchmore(), realtime_multi_curl(), realtime_multi_ldap(), realtime_multi_odbc(), realtime_multi_pgsql(), realtime_odbc(), realtime_peer(), realtime_pgsql(), realtime_switch_common(), realtime_user(), realtimefield_read(), reload(), reload_followme(), reload_module(), reload_single_queue(), retrieve_astcfgint(), rt_extend_conf(), semicolon_count_var(), set_config(), set_timezone_variables(), shared_read(), shared_variable_free(), shared_write(), shift_pop(), show_users_realtime(), sip_cli_notify(), sla_add_trunk_to_station(), sla_build_station(), sla_build_trunk(), socket_process(), transmit_invite(), unload_module(), unshift_push(), variable_named(), vm_change_password(), write_password_to_file(), 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 831 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]

Definition at line 280 of file ast_expr2f.c.

Referenced by ast_yyerror(), ast_yylex_destroy(), ast_yypop_buffer_state(), and ast_yypush_buffer_state().

#define YY_DECL

Value:

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

Definition at line 818 of file ast_expr2f.c.

#define YY_DECL_IS_OURS   1

Definition at line 813 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 2005 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 804 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 757 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 742 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 834 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 799 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 2017 of file ast_expr2f.c.

#define yyless (  ) 

Definition at line 2017 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 2369 of file ast_expr2f.c.

 
#define yyterminate (  )     return YY_NULL

Definition at line 794 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.

typedef struct yy_buffer_state* YY_BUFFER_STATE

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 

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 2392 of file ast_expr2f.c.

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

02393 {
02394    struct parse_io io = { .string = expr, .chan = chan };
02395    int return_value = 0;
02396 
02397    ast_yylex_init(&io.scanner);
02398 
02399    ast_yy_scan_string(expr, io.scanner);
02400 
02401    ast_yyparse ((void *) &io);
02402 
02403    ast_yylex_destroy(io.scanner);
02404 
02405    if (!io.val) {
02406       if (length > 1) {
02407          strcpy(buf, "0");
02408          return_value = 1;
02409       }
02410    } else {
02411       if (io.val->type == AST_EXPR_number) {
02412          int res_length;
02413 
02414          res_length = snprintf(buf, length, FP___PRINTF, io.val->u.i);
02415          return_value = (res_length <= length) ? res_length : length;
02416       } else {
02417          if (io.val->u.s)
02418 #if defined(STANDALONE) || defined(LOW_MEMORY) || defined(STANDALONE)
02419             strncpy(buf, io.val->u.s, length - 1);
02420 #else /* !STANDALONE && !LOW_MEMORY */
02421             ast_copy_string(buf, io.val->u.s, length);
02422 #endif /* STANDALONE || LOW_MEMORY */
02423          else
02424             buf[0] = 0;
02425          return_value = strlen(buf);
02426          free(io.val->u.s);
02427       }
02428       free(io.val);
02429    }
02430    return return_value;
02431 }

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.

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 2434 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(), parse_io::chan, FP___PRINTF, free, io, and str.

Referenced by ast_str_substitute_variables_full().

02435 {
02436    struct parse_io io = { .string = expr, .chan = chan };
02437 
02438    ast_yylex_init(&io.scanner);
02439    ast_yy_scan_string(expr, io.scanner);
02440    ast_yyparse ((void *) &io);
02441    ast_yylex_destroy(io.scanner);
02442 
02443    if (!io.val) {
02444       ast_str_set(str, maxlen, "0");
02445    } else {
02446       if (io.val->type == AST_EXPR_number) {
02447          int res_length;
02448          ast_str_set(str, maxlen, FP___PRINTF, io.val->u.i);
02449       } else if (io.val->u.s) {
02450          ast_str_set(str, maxlen, "%s", io.val->u.s);
02451          free(io.val->u.s);
02452       }
02453       free(io.val);
02454    }
02455    return ast_str_strlen(*str);
02456 }

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 
)

Referenced by ast_yylex_destroy(), and ast_yypop_buffer_state().

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 1793 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().

01794 {
01795     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01796    if ( ! b )
01797       return;
01798 
01799    b->yy_n_chars = 0;
01800 
01801    /* We always need two end-of-buffer characters.  The first causes
01802     * a transition to the end-of-buffer state.  The second causes
01803     * a jam in that state.
01804     */
01805    b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
01806    b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
01807 
01808    b->yy_buf_pos = &b->yy_ch_buf[0];
01809 
01810    b->yy_at_bol = 1;
01811    b->yy_buffer_status = YY_BUFFER_NEW;
01812 
01813    if ( b == YY_CURRENT_BUFFER )
01814       ast_yy_load_buffer_state(yyscanner );
01815 }

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 1764 of file ast_expr2f.c.

References ast_yy_flush_buffer(), errno, and YY_CURRENT_BUFFER.

01766 {
01767    int oerrno = errno;
01768     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01769 
01770    ast_yy_flush_buffer(b ,yyscanner);
01771 
01772    b->yy_input_file = file;
01773    b->yy_fill_buffer = 1;
01774 
01775     /* If b is the current buffer, then ast_yy_init_buffer was _probably_
01776      * called from ast_yyrestart() or through yy_get_next_buffer.
01777      * In that case, we don't want to reset the lineno or column.
01778      */
01779     if (b != YY_CURRENT_BUFFER){
01780         b->yy_bs_lineno = 1;
01781         b->yy_bs_column = 0;
01782     }
01783 
01784         b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
01785     
01786    errno = oerrno;
01787 }

static void ast_yy_load_buffer_state ( yyscan_t  yyscanner  )  [static]

Referenced by ast_yy_flush_buffer(), ast_yypop_buffer_state(), and ast_yypush_buffer_state().

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 1924 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().

01925 {
01926    YY_BUFFER_STATE b;
01927     
01928    if ( size < 2 ||
01929         base[size-2] != YY_END_OF_BUFFER_CHAR ||
01930         base[size-1] != YY_END_OF_BUFFER_CHAR )
01931       /* They forgot to leave room for the EOB's. */
01932       return 0;
01933 
01934    b = (YY_BUFFER_STATE) ast_yyalloc(sizeof( struct yy_buffer_state ) ,yyscanner );
01935    if ( ! b )
01936       YY_FATAL_ERROR( "out of dynamic memory in ast_yy_scan_buffer()" );
01937 
01938    b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */
01939    b->yy_buf_pos = b->yy_ch_buf = base;
01940    b->yy_is_our_buffer = 0;
01941    b->yy_input_file = 0;
01942    b->yy_n_chars = b->yy_buf_size;
01943    b->yy_is_interactive = 0;
01944    b->yy_at_bol = 1;
01945    b->yy_fill_buffer = 0;
01946    b->yy_buffer_status = YY_BUFFER_NEW;
01947 
01948    ast_yy_switch_to_buffer(b ,yyscanner );
01949 
01950    return b;
01951 }

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:
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 1974 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().

01975 {
01976    YY_BUFFER_STATE b;
01977    char *buf;
01978    yy_size_t n;
01979    int i;
01980     
01981    /* Get memory for full buffer, including space for trailing EOB's. */
01982    n = _yybytes_len + 2;
01983    buf = (char *) ast_yyalloc(n ,yyscanner );
01984    if ( ! buf )
01985       YY_FATAL_ERROR( "out of dynamic memory in ast_yy_scan_bytes()" );
01986 
01987    for ( i = 0; i < _yybytes_len; ++i )
01988       buf[i] = yybytes[i];
01989 
01990    buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
01991 
01992    b = ast_yy_scan_buffer(buf,n ,yyscanner);
01993    if ( ! b )
01994       YY_FATAL_ERROR( "bad buffer in ast_yy_scan_bytes()" );
01995 
01996    /* It's okay to grow etc. this buffer, and we should throw it
01997     * away when we're done.
01998     */
01999    b->yy_is_our_buffer = 1;
02000 
02001    return b;
02002 }

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 1961 of file ast_expr2f.c.

References ast_yy_scan_bytes().

Referenced by ast_expr(), and ast_str_expr().

01962 {
01963     
01964    return ast_yy_scan_bytes(yystr,strlen(yystr) ,yyscanner);
01965 }

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  ,
yyscan_t  yyscanner 
)

Definition at line 2352 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().

02353 {
02354    return (void *) malloc( size );
02355 }

static void ast_yyensure_buffer_stack ( yyscan_t  yyscanner  )  [static]

Definition at line 1874 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().

01875 {
01876    int num_to_alloc;
01877     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01878 
01879    if (!yyg->yy_buffer_stack) {
01880 
01881       /* First allocation is just for 2 elements, since we don't know if this
01882        * scanner will even need a stack. We use 2 instead of 1 to avoid an
01883        * immediate realloc on the next call.
01884          */
01885       num_to_alloc = 1;
01886       yyg->yy_buffer_stack = (struct yy_buffer_state**)ast_yyalloc
01887                         (num_to_alloc * sizeof(struct yy_buffer_state*)
01888                         , yyscanner);
01889       if ( ! yyg->yy_buffer_stack )
01890          YY_FATAL_ERROR( "out of dynamic memory in ast_yyensure_buffer_stack()" );
01891                           
01892       memset(yyg->yy_buffer_stack, 0, num_to_alloc * sizeof(struct yy_buffer_state*));
01893             
01894       yyg->yy_buffer_stack_max = num_to_alloc;
01895       yyg->yy_buffer_stack_top = 0;
01896       return;
01897    }
01898 
01899    if (yyg->yy_buffer_stack_top >= (yyg->yy_buffer_stack_max) - 1){
01900 
01901       /* Increase the buffer to prepare for a possible push. */
01902       int grow_size = 8 /* arbitrary grow size */;
01903 
01904       num_to_alloc = yyg->yy_buffer_stack_max + grow_size;
01905       yyg->yy_buffer_stack = (struct yy_buffer_state**)ast_yyrealloc
01906                         (yyg->yy_buffer_stack,
01907                         num_to_alloc * sizeof(struct yy_buffer_state*)
01908                         , yyscanner);
01909       if ( ! yyg->yy_buffer_stack )
01910          YY_FATAL_ERROR( "out of dynamic memory in ast_yyensure_buffer_stack()" );
01911 
01912       /* zero only the new slots.*/
01913       memset(yyg->yy_buffer_stack + yyg->yy_buffer_stack_max, 0, grow_size * sizeof(struct yy_buffer_state*));
01914       yyg->yy_buffer_stack_max = num_to_alloc;
01915    }
01916 }

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

Definition at line 2574 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.

02575 {  
02576    struct yyguts_t * yyg = (struct yyguts_t*)(parseio->scanner);
02577    char spacebuf[8000]; /* best safe than sorry */
02578    char spacebuf2[8000]; /* best safe than sorry */
02579    int i=0;
02580    char *s2 = expr2_token_subst(s);
02581    spacebuf[0] = 0;
02582    
02583    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,
02584                                                                         which is the same thing as... get this:
02585                                        yyg->yy_buffer_stack[yyg->yy_buffer_stack_top]->yy_bs_column
02586                                        I was tempted to just use yy_buf_pos in the STATE, but..., well:
02587                                           a. the yy_buf_pos is the current position in the buffer, which
02588                                              may not relate to the entire string/buffer because of the
02589                                              buffering.
02590                                           b. but, analysis of the situation is that when you use the
02591                                              ast_yy_scan_string func, it creates a single buffer the size of
02592                                              string, so the two would be the same... 
02593                                        so, in the end, the yycolumn macro is available, shorter, therefore easier. */
02594    spacebuf2[i++]='^';
02595    spacebuf2[i]= 0;
02596 
02597 #ifdef STANDALONE3
02598    /* easier to read in the standalone version */
02599    printf("ast_yyerror(): %s syntax error: %s; Input:\n%s\n%s\n",  
02600          (extra_error_message_supplied?extra_error_message:""), s2, parseio->string,spacebuf2);
02601 #else
02602    ast_log(LOG_WARNING,"ast_yyerror(): %s syntax error: %s; Input:\n%s\n%s\n",  
02603          (extra_error_message_supplied?extra_error_message:""), s2, parseio->string,spacebuf2);
02604 #endif
02605 #ifndef STANDALONE
02606    ast_log(LOG_WARNING,"If you have questions, please refer to https://wiki.asterisk.org/wiki/display/AST/Channel+Variables\n");
02607 #endif
02608    free(s2);
02609    return(0);
02610 }

int ast_yyerror ( const char *  ,
YYLTYPE ,
struct parse_io  
)

void ast_yyfree ( void *  ,
yyscan_t  yyscanner 
)

Definition at line 2384 of file ast_expr2f.c.

References free.

Referenced by ast_yylex_destroy().

02385 {
02386     /* the normal generated ast_yyfree func just frees its first arg;
02387      this get complaints on some systems, as sometimes this
02388      arg is a nil ptr! It's usually not fatal, but is irritating! */
02389    free( (char *) ptr );
02390 }

int ast_yyget_column ( yyscan_t  yyscanner  ) 

Get the current column number.

Parameters:
yyscanner The scanner object.

Definition at line 2058 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, and yycolumn.

02059 {
02060     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02061     
02062         if (! YY_CURRENT_BUFFER)
02063             return 0;
02064     
02065     return yycolumn;
02066 }

int ast_yyget_debug ( yyscan_t  yyscanner  ) 

Definition at line 2163 of file ast_expr2f.c.

References yy_flex_debug.

02164 {
02165     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02166     return yy_flex_debug;
02167 }

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 2036 of file ast_expr2f.c.

References yyextra.

02037 {
02038     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02039     return yyextra;
02040 }

FILE * ast_yyget_in ( yyscan_t  yyscanner  ) 

Get the input stream.

Parameters:
yyscanner The scanner object.

Definition at line 2071 of file ast_expr2f.c.

References yyin.

02072 {
02073     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02074     return yyin;
02075 }

int ast_yyget_leng ( yyscan_t  yyscanner  ) 

Get the length of the current token.

Parameters:
yyscanner The scanner object.

Definition at line 2089 of file ast_expr2f.c.

References yyleng.

02090 {
02091     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02092     return yyleng;
02093 }

int ast_yyget_lineno ( yyscan_t  yyscanner  ) 

Get the current line number.

Parameters:
yyscanner The scanner object.

Definition at line 2045 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, and yylineno.

02046 {
02047     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02048     
02049         if (! YY_CURRENT_BUFFER)
02050             return 0;
02051     
02052     return yylineno;
02053 }

YYLTYPE * ast_yyget_lloc ( yyscan_t  yyscanner  ) 

Definition at line 2189 of file ast_expr2f.c.

References yylloc.

02190 {
02191     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02192     return yylloc;
02193 }

YYSTYPE * ast_yyget_lval ( yyscan_t  yyscanner  ) 

Definition at line 2177 of file ast_expr2f.c.

References yylval.

02178 {
02179     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02180     return yylval;
02181 }

FILE * ast_yyget_out ( yyscan_t  yyscanner  ) 

Get the output stream.

Parameters:
yyscanner The scanner object.

Definition at line 2080 of file ast_expr2f.c.

References yyout.

02081 {
02082     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02083     return yyout;
02084 }

char * ast_yyget_text ( yyscan_t  yyscanner  ) 

Get the current token.

Parameters:
yyscanner The scanner object.

Definition at line 2099 of file ast_expr2f.c.

References yytext.

02100 {
02101     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02102     return yytext;
02103 }

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

int ast_yylex_destroy ( yyscan_t  yyscanner  ) 

Definition at line 2299 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().

02300 {
02301     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02302 
02303     /* Pop the buffer stack, destroying each element. */
02304    while(YY_CURRENT_BUFFER){
02305       ast_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner );
02306       YY_CURRENT_BUFFER_LVALUE = NULL;
02307       ast_yypop_buffer_state(yyscanner);
02308    }
02309 
02310    /* Destroy the stack itself. */
02311    ast_yyfree(yyg->yy_buffer_stack ,yyscanner);
02312    yyg->yy_buffer_stack = NULL;
02313 
02314     /* Destroy the start condition stack. */
02315         ast_yyfree(yyg->yy_start_stack ,yyscanner );
02316         yyg->yy_start_stack = NULL;
02317 
02318     /* Reset the globals. This is important in a non-reentrant scanner so the next time
02319      * ast_yylex() is called, initialization will occur. */
02320     yy_init_globals( yyscanner);
02321 
02322     /* Destroy the main struct (reentrant only). */
02323     ast_yyfree ( yyscanner , yyscanner );
02324     yyscanner = NULL;
02325     return 0;
02326 }

int ast_yylex_init ( yyscan_t scanner  ) 

Definition at line 2208 of file ast_expr2f.c.

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

Referenced by ast_expr(), and ast_str_expr().

02210 {
02211     if (ptr_yy_globals == NULL){
02212         errno = EINVAL;
02213         return 1;
02214     }
02215 
02216     *ptr_yy_globals = (yyscan_t) ast_yyalloc ( sizeof( struct yyguts_t ), NULL );
02217 
02218     if (*ptr_yy_globals == NULL){
02219         errno = ENOMEM;
02220         return 1;
02221     }
02222 
02223     /* By setting to 0xAA, we expose bugs in yy_init_globals. Leave at 0x00 for releases. */
02224     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
02225 
02226     return yy_init_globals ( *ptr_yy_globals );
02227 }

int ast_yylex_init_extra ( YY_EXTRA_TYPE  user_defined,
yyscan_t scanner 
)

Definition at line 2237 of file ast_expr2f.c.

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

02239 {
02240     struct yyguts_t dummy_yyguts;
02241 
02242     ast_yyset_extra (yy_user_defined, &dummy_yyguts);
02243 
02244     if (ptr_yy_globals == NULL){
02245         errno = EINVAL;
02246         return 1;
02247     }
02248    
02249     *ptr_yy_globals = (yyscan_t) ast_yyalloc ( sizeof( struct yyguts_t ), &dummy_yyguts );
02250    
02251     if (*ptr_yy_globals == NULL){
02252         errno = ENOMEM;
02253         return 1;
02254     }
02255     
02256     /* By setting to 0xAA, we expose bugs in
02257     yy_init_globals. Leave at 0x00 for releases. */
02258     memset(*ptr_yy_globals,0x00,sizeof(struct yyguts_t));
02259     
02260     ast_yyset_extra (yy_user_defined, *ptr_yy_globals);
02261     
02262     return yy_init_globals ( *ptr_yy_globals );
02263 }

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 1854 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().

01855 {
01856     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01857    if (!YY_CURRENT_BUFFER)
01858       return;
01859 
01860    ast_yy_delete_buffer(YY_CURRENT_BUFFER ,yyscanner);
01861    YY_CURRENT_BUFFER_LVALUE = NULL;
01862    if (yyg->yy_buffer_stack_top > 0)
01863       --yyg->yy_buffer_stack_top;
01864 
01865    if (YY_CURRENT_BUFFER) {
01866       ast_yy_load_buffer_state(yyscanner );
01867       yyg->yy_did_buffer_switch_on_eof = 1;
01868    }
01869 }

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 1823 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.

01824 {
01825     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
01826    if (new_buffer == NULL)
01827       return;
01828 
01829    ast_yyensure_buffer_stack(yyscanner);
01830 
01831    /* This block is copied from ast_yy_switch_to_buffer. */
01832    if ( YY_CURRENT_BUFFER )
01833       {
01834       /* Flush out information for old buffer. */
01835       *yyg->yy_c_buf_p = yyg->yy_hold_char;
01836       YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = yyg->yy_c_buf_p;
01837       YY_CURRENT_BUFFER_LVALUE->yy_n_chars = yyg->yy_n_chars;
01838       }
01839 
01840    /* Only push if top exists. Otherwise, replace top. */
01841    if (YY_CURRENT_BUFFER)
01842       yyg->yy_buffer_stack_top++;
01843    YY_CURRENT_BUFFER_LVALUE = new_buffer;
01844 
01845    /* copied from ast_yy_switch_to_buffer. */
01846    ast_yy_load_buffer_state(yyscanner );
01847    yyg->yy_did_buffer_switch_on_eof = 1;
01848 }

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

Definition at line 2357 of file ast_expr2f.c.

References realloc.

Referenced by ast_yyensure_buffer_stack().

02358 {
02359    /* The cast to (char *) in the following accommodates both
02360     * implementations that use char* generic pointers, and those
02361     * that use void* generic pointers.  It works with the latter
02362     * because both ANSI C and C++ allow castless assignment from
02363     * any pointer type to void*, and deal with argument conversions
02364     * as though doing an assignment.
02365     */
02366    return (void *) realloc( (char *) ptr, size );
02367 }

void ast_yyrestart ( FILE *  input_file,
yyscan_t  yyscanner 
)

void ast_yyset_column ( int  column_no,
yyscan_t  yyscanner 
)

Set the current column.

Parameters:
column_no 
yyscanner The scanner object.

Definition at line 2134 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, yy_fatal_error(), and yycolumn.

02135 {
02136     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02137 
02138         /* column is only valid if an input buffer exists. */
02139         if (! YY_CURRENT_BUFFER )
02140            yy_fatal_error( "ast_yyset_column called with no buffer" , yyscanner); 
02141     
02142     yycolumn = column_no;
02143 }

void ast_yyset_debug ( int  debug_flag,
yyscan_t  yyscanner 
)

Definition at line 2169 of file ast_expr2f.c.

References yy_flex_debug.

02170 {
02171     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02172     yy_flex_debug = bdebug ;
02173 }

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 2109 of file ast_expr2f.c.

References yyextra.

Referenced by ast_yylex_init_extra().

02110 {
02111     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02112     yyextra = user_defined ;
02113 }

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 2151 of file ast_expr2f.c.

References yyin.

02152 {
02153     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02154     yyin = in_str ;
02155 }

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 2119 of file ast_expr2f.c.

References YY_CURRENT_BUFFER, yy_fatal_error(), and yylineno.

02120 {
02121     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02122 
02123         /* lineno is only valid if an input buffer exists. */
02124         if (! YY_CURRENT_BUFFER )
02125            yy_fatal_error( "ast_yyset_lineno called with no buffer" , yyscanner); 
02126     
02127     yylineno = line_number;
02128 }

void ast_yyset_lloc ( YYLTYPE yylloc_param,
yyscan_t  yyscanner 
)

Definition at line 2195 of file ast_expr2f.c.

References yylloc.

02196 {
02197     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02198     yylloc = yylloc_param;
02199 }

void ast_yyset_lval ( YYSTYPE yylval_param,
yyscan_t  yyscanner 
)

Definition at line 2183 of file ast_expr2f.c.

References yylval.

02184 {
02185     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02186     yylval = yylval_param;
02187 }

void ast_yyset_out ( FILE *  out_str,
yyscan_t  yyscanner 
)

Definition at line 2157 of file ast_expr2f.c.

References yyout.

02158 {
02159     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02160     yyout = out_str ;
02161 }

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

Definition at line 2530 of file ast_expr2f.c.

References len(), and malloc.

Referenced by ast_yyerror().

02531 {
02532    /* calc a length, malloc, fill, and return; yyerror had better free it! */
02533    int len=0,i;
02534    const char *p;
02535    char *res, *s;
02536    const char *t;
02537    int expr2_token_equivs_entries = sizeof(expr2_token_equivs1)/sizeof(char*);
02538 
02539    for (p=mess; *p; p++) {
02540       for (i=0; i<expr2_token_equivs_entries; i++) {
02541          if ( strncmp(p,expr2_token_equivs1[i],strlen(expr2_token_equivs1[i])) == 0 )
02542          {
02543             len+=strlen(expr2_token_equivs2[i])+2;
02544             p += strlen(expr2_token_equivs1[i])-1;
02545             break;
02546          }
02547       }
02548       len++;
02549    }
02550    res = (char*)malloc(len+1);
02551    res[0] = 0;
02552    s = res;
02553    for (p=mess; *p;) {
02554       int found = 0;
02555       for (i=0; i<expr2_token_equivs_entries; i++) {
02556          if ( strncmp(p,expr2_token_equivs1[i],strlen(expr2_token_equivs1[i])) == 0 ) {
02557             *s++ = '\'';
02558             for (t=expr2_token_equivs2[i]; *t;) {
02559                *s++ = *t++;
02560             }
02561             *s++ = '\'';
02562             p += strlen(expr2_token_equivs1[i]);
02563             found = 1;
02564             break;
02565          }
02566       }
02567       if( !found )
02568          *s++ = *p++;
02569    }
02570    *s++ = 0;
02571    return res;
02572 }

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 2008 of file ast_expr2f.c.

References YY_EXIT_FAILURE.

02009 {
02010       (void) fprintf( stderr, "%s\n", msg );
02011    exit( YY_EXIT_FAILURE );
02012 }

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

Referenced by ast_yyset_column(), and ast_yyset_lineno().

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 2265 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().

02266 {
02267     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
02268     /* Initialization is the same as for the non-reentrant scanner.
02269      * This function is called from ast_yylex_destroy(), so don't allocate here.
02270      */
02271 
02272     yyg->yy_buffer_stack = 0;
02273     yyg->yy_buffer_stack_top = 0;
02274     yyg->yy_buffer_stack_max = 0;
02275     yyg->yy_c_buf_p = (char *) 0;
02276     yyg->yy_init = 0;
02277     yyg->yy_start = 0;
02278 
02279     yyg->yy_start_stack_ptr = 0;
02280     yyg->yy_start_stack_depth = 0;
02281     yyg->yy_start_stack =  NULL;
02282 
02283 /* Defined in main.c */
02284 #ifdef YY_STDINIT
02285     yyin = stdin;
02286     yyout = stdout;
02287 #else
02288     yyin = (FILE *) 0;
02289     yyout = (FILE *) 0;
02290 #endif
02291 
02292     /* For future reference: Set errno on error, since we are called by
02293      * ast_yylex_init()
02294      */
02295     return 0;
02296 }

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 2477 of file ast_expr2f.c.

const char* const expr2_token_equivs2[] [static]

Definition at line 2503 of file ast_expr2f.c.

char extra_error_message[4095]

Definition at line 2460 of file ast_expr2f.c.

int extra_error_message_supplied = 0

Definition at line 2461 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 Mon Jun 27 16:51:02 2011 for Asterisk - The Open Source Telephony Project by  doxygen 1.4.7