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MXS-1346: Minor cleanup of grammar rules

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Cleaned up the grammar rules by splitting long lines at roughly 80
characters and removed the redundant code for the columnlist type.
This commit is contained in:
Markus Mäkelä
2017-08-30 09:21:22 +03:00
parent a1d4f25392
commit b9302f11cc
1 changed files with 19 additions and 12 deletions
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31
server/modules/filter/dbfwfilter/ruleparser.y
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@ -34,15 +34,19 @@
%lex-param {void* scanner}
/** Terminal symbols */
%token FWTOK_RULE <strval>FWTOK_RULENAME FWTOK_USERS <strval>FWTOK_USER FWTOK_RULES FWTOK_MATCH FWTOK_ANY FWTOK_ALL FWTOK_STRICT_ALL FWTOK_DENY
%token FWTOK_WILDCARD FWTOK_COLUMNS FWTOK_REGEX FWTOK_LIMIT_QUERIES FWTOK_WHERE_CLAUSE FWTOK_AT_TIMES FWTOK_ON_QUERIES
%token <strval>FWTOK_SQLOP FWTOK_COMMENT <intval>FWTOK_INT <floatval>FWTOK_FLOAT FWTOK_PIPE <strval>FWTOK_TIME
%token <strval>FWTOK_BTSTR <strval>FWTOK_QUOTEDSTR <strval>FWTOK_STR FWTOK_FUNCTION FWTOK_USES_FUNCTION <strval>FWTOK_CMP
%token FWTOK_RULE FWTOK_USERS FWTOK_RULES FWTOK_MATCH FWTOK_ANY FWTOK_ALL
%token FWTOK_STRICT_ALL FWTOK_DENY FWTOK_WILDCARD FWTOK_COLUMNS FWTOK_REGEX
%token FWTOK_LIMIT_QUERIES FWTOK_WHERE_CLAUSE FWTOK_AT_TIMES FWTOK_ON_QUERIES
%token FWTOK_FUNCTION FWTOK_USES_FUNCTION FWTOK_COMMENT FWTOK_PIPE
/** Terminal typed symbols */
%token <floatval>FWTOK_FLOAT <strval>FWTOK_TIME <strval>FWTOK_BTSTR
%token <strval>FWTOK_QUOTEDSTR <strval>FWTOK_STR <strval>FWTOK_USER
%token <strval>FWTOK_CMP <strval>FWTOK_SQLOP <intval>FWTOK_INT <strval>FWTOK_RULENAME
/** Non-terminal symbols */
%type <strval>rulename
%type <strval>cond
%type <strval>columnlist
%type <strval>orlist
%%
@ -118,16 +122,14 @@ mandatory:
| FWTOK_USES_FUNCTION functionusagelist
;
columnlist:
columnvalue:
FWTOK_BTSTR {if (!define_columns_rule(scanner, $1)){YYERROR;}}
| FWTOK_STR {if (!define_columns_rule(scanner, $1)){YYERROR;}}
| columnlist FWTOK_BTSTR {if (!define_columns_rule(scanner, $2)){YYERROR;}}
| columnlist FWTOK_STR {if (!define_columns_rule(scanner, $2)){YYERROR;}}
;
functionlist:
functionvalue
| functionlist functionvalue
columnlist:
columnvalue
| columnlist columnvalue
;
functionvalue:
@ -136,6 +138,11 @@ functionvalue:
| FWTOK_BTSTR {if (!define_function_rule(scanner, $1)){YYERROR;}}
;
functionlist:
functionvalue
| functionlist functionvalue
;
functionusagevalue:
FWTOK_BTSTR {if (!define_function_usage_rule(scanner, $1)){YYERROR;}}
| FWTOK_STR {if (!define_function_usage_rule(scanner, $1)){YYERROR;}}
@ -145,7 +152,7 @@ functionusagelist:
| functionusagelist functionusagevalue
;
/** Optional parts of a rule */
optional:
FWTOK_AT_TIMES timelist
| FWTOK_ON_QUERIES orlist