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%define api.pure full
%name-prefix "flb_ra_"
%parse-param { struct flb_ra_parser *rp };
%parse-param { const char *str };
%lex-param { void *scanner }
%parse-param { void *scanner }
%{
#include <stdio.h>
#include <stdlib.h>
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_mem.h>
#include <fluent-bit/flb_log.h>
#include <fluent-bit/flb_slist.h>
#include <fluent-bit/record_accessor/flb_ra_parser.h>
#include "ra_parser.h"
#include "ra_lex.h"
extern int flb_ra_lex();
void flb_ra_error(struct flb_ra_parser *rp, const char *query, void *scanner,
const char *str)
{
flb_error("[record accessor] %s at '%s'", str, query);
}
%} /* EOF C code */
/* Known Tokens (refer to sql.l) */
/* Keywords */
%token IDENTIFIER STRING INTEGER
%define parse.error verbose
/* Union and field types */
%union
{
int integer;
float fval;
char *string;
struct flb_sp_cmd *cmd;
struct flb_exp *expression;
}
%type <string> IDENTIFIER
%type <integer> INTEGER
%type <string> STRING
%type <string> record_key
%destructor { flb_free ($$); } IDENTIFIER
%destructor { flb_free ($$); } STRING
%% /* rules section */
statements: record_accessor
/* Parse record accessor string: $key, $key['x'], $key['x'][...] */
record_accessor: record_key
record_key:
'$' IDENTIFIER
{
void *key;
rp->type = FLB_RA_PARSER_KEYMAP;
key = flb_ra_parser_key_add(rp, $2);
if (key) {
rp->key = key;
}
flb_free($2);
}
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'$' IDENTIFIER record_subkey
{
void *key;
rp->type = FLB_RA_PARSER_KEYMAP;
key = flb_ra_parser_key_add(rp, $2);
if (key) {
rp->key = key;
}
flb_free($2);
}
record_subkey: record_subkey record_subkey_index | record_subkey_index
record_subkey_index:
'[' STRING ']'
{
flb_ra_parser_subentry_add_string(rp, $2);
flb_free($2);
}
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'[' INTEGER ']'
{
flb_ra_parser_subentry_add_array_id(rp, $2);
}
;
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