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[smartpl] Minor improvements to parser

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This commit is contained in:
ejurgensen 2022-01-14 19:09:37 +01:00
parent 3898a4b588
commit 6238647202
2 changed files with 23 additions and 56 deletions
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38
src/parsers/smartpl_lexer.l
View File

@ -48,11 +48,6 @@
/* ========================= NON-BOILERPLATE SECTION =========================*/
%{
time_t l_converttime(int day, int month, int year);
time_t l_convertyyyymmdd(char *date);
%}
%option case-insensitive
quoted \"[^\"\n]*[\"\n]
@ -139,8 +134,7 @@ after { return (yylval->ival = SMARTPL_T_AFTER); }
is { return (yylval->ival = SMARTPL_T_IS); }
includes { return (yylval->ival = SMARTPL_T_INCLUDES); }
= { return (yylval->ival = SMARTPL_T_EQUALS); }
= { return (yylval->ival = SMARTPL_T_EQUAL); }
\<= { return (yylval->ival = SMARTPL_T_LESSEQUAL); }
\< { return (yylval->ival = SMARTPL_T_LESS); }
\>= { return (yylval->ival = SMARTPL_T_GREATEREQUAL); }
@ -153,7 +147,7 @@ not { return SMARTPL_T_NOT; }
{quoted} { yylval->str=strdup(yytext+1);
if(yylval->str[strlen(yylval->str)-1] == '"')
yylval->str[strlen(yylval->str)-1] = '\0';
return SMARTPL_T_UNQUOTED; }
return SMARTPL_T_STRING; }
[0-9]+ { yylval->ival=atoi(yytext); return SMARTPL_T_NUM; }
@ -161,31 +155,3 @@ not { return SMARTPL_T_NOT; }
%%
time_t l_convertyyyymmdd(char *date)
{
char year[5];
char month[3];
char day[3];
memset(year, 0, sizeof(year));
memset(month, 0, sizeof(month));
memset(day, 0, sizeof(day));
strncpy(year, date, 4);
strncpy(month, date + 5, 2);
strncpy(day, date + 8, 2);
return l_converttime(atoi(day), atoi(month), atoi(year));
}
time_t l_converttime(int day, int month, int year)
{
struct tm tm;
memset(&tm, 0, sizeof(tm));
tm.tm_year = year - 1900;
tm.tm_mon = month-1;
tm.tm_mday = day;
return mktime(&tm);
}

41
src/parsers/smartpl_parser.y
View File

@ -362,7 +362,7 @@ static void sql_from_ast(struct smartpl_result *result, struct result_part *part
switch (a->type)
{
case SMARTPL_T_EQUALS:
case SMARTPL_T_EQUAL:
sql_append_recursive(result, part, a, "=", "!=", is_not, SQL_APPEND_OPERATOR); break;
case SMARTPL_T_LESS:
sql_append_recursive(result, part, a, "<", ">=", is_not, SQL_APPEND_OPERATOR); break;
@ -400,7 +400,7 @@ static void sql_from_ast(struct smartpl_result *result, struct result_part *part
sql_append_recursive(result, part, a, "now', 'start of year', '-1 year", NULL, 0, SQL_APPEND_DATE_FIELD); break;
case SMARTPL_T_INTERVAL:
sql_append_recursive(result, part, a, "-", "+", is_not, SQL_APPEND_DATE_FIELD); break;
case SMARTPL_T_UNQUOTED:
case SMARTPL_T_STRING:
case SMARTPL_T_GROUPTAG:
sql_append_recursive(result, part, a, NULL, NULL, 0, SQL_APPEND_STR); break;
case SMARTPL_T_STRTAG:
@ -453,7 +453,10 @@ static int result_set(struct smartpl_result *result, char *title, struct ast *cr
}
/* A string that was quoted. Quotes were stripped by lexer. */
%token <str> SMARTPL_T_UNQUOTED
%token <str> SMARTPL_T_STRING
/* Numbers (integers) */
%token <ival> SMARTPL_T_NUM
/* The semantic value holds the actual name of the field */
%token <str> SMARTPL_T_STRTAG
@ -499,18 +502,16 @@ static int result_set(struct smartpl_result *result, char *title, struct ast *cr
%token <ival> SMARTPL_T_DATE_LASTMONTH
%token <ival> SMARTPL_T_DATE_LASTYEAR
%token <ival> SMARTPL_T_NUM
/* The below are only ival so we can set intbool, datebool and strbool via the
default rule for semantic values, i.e. $$ = $1. The semantic value (ival) is
set to the token value by the lexer. */
%token <ival> SMARTPL_T_EQUALS
%token <ival> SMARTPL_T_IS
%token <ival> SMARTPL_T_INCLUDES
%token <ival> SMARTPL_T_EQUAL
%token <ival> SMARTPL_T_LESS
%token <ival> SMARTPL_T_LESSEQUAL
%token <ival> SMARTPL_T_GREATER
%token <ival> SMARTPL_T_GREATEREQUAL
%token <ival> SMARTPL_T_IS
%token <ival> SMARTPL_T_INCLUDES
%token <ival> SMARTPL_T_BEFORE
%token <ival> SMARTPL_T_AFTER
%token <ival> SMARTPL_T_AGO
@ -535,14 +536,14 @@ static int result_set(struct smartpl_result *result, char *title, struct ast *cr
%%
playlist:
SMARTPL_T_UNQUOTED '{' criteria having order limit '}' { return result_set(result, $1, $3, $4, $5, $6); }
| SMARTPL_T_UNQUOTED '{' criteria having order '}' { return result_set(result, $1, $3, $4, $5, NULL); }
| SMARTPL_T_UNQUOTED '{' criteria having limit '}' { return result_set(result, $1, $3, $4, NULL, $5); }
| SMARTPL_T_UNQUOTED '{' criteria having '}' { return result_set(result, $1, $3, $4, NULL, NULL); }
| SMARTPL_T_UNQUOTED '{' criteria order limit '}' { return result_set(result, $1, $3, NULL, $4, $5); }
| SMARTPL_T_UNQUOTED '{' criteria order '}' { return result_set(result, $1, $3, NULL, $4, NULL); }
| SMARTPL_T_UNQUOTED '{' criteria limit '}' { return result_set(result, $1, $3, NULL, NULL, $4); }
| SMARTPL_T_UNQUOTED '{' criteria '}' { return result_set(result, $1, $3, NULL, NULL, NULL); }
SMARTPL_T_STRING '{' criteria having order limit '}' { return result_set(result, $1, $3, $4, $5, $6); }
| SMARTPL_T_STRING '{' criteria having order '}' { return result_set(result, $1, $3, $4, $5, NULL); }
| SMARTPL_T_STRING '{' criteria having limit '}' { return result_set(result, $1, $3, $4, NULL, $5); }
| SMARTPL_T_STRING '{' criteria having '}' { return result_set(result, $1, $3, $4, NULL, NULL); }
| SMARTPL_T_STRING '{' criteria order limit '}' { return result_set(result, $1, $3, NULL, $4, $5); }
| SMARTPL_T_STRING '{' criteria order '}' { return result_set(result, $1, $3, NULL, $4, NULL); }
| SMARTPL_T_STRING '{' criteria limit '}' { return result_set(result, $1, $3, NULL, NULL, $4); }
| SMARTPL_T_STRING '{' criteria '}' { return result_set(result, $1, $3, NULL, NULL, NULL); }
;
criteria: criteria SMARTPL_T_AND criteria { $$ = ast_new(SMARTPL_T_AND, $1, $3); }
@ -551,11 +552,11 @@ criteria: criteria SMARTPL_T_AND criteria { $$ = ast_new(SMART
| predicate
;
predicate: SMARTPL_T_STRTAG strbool SMARTPL_T_UNQUOTED { $$ = ast_new($2, ast_data(SMARTPL_T_STRTAG, $1), ast_data(SMARTPL_T_UNQUOTED, $3)); }
predicate: SMARTPL_T_STRTAG strbool SMARTPL_T_STRING { $$ = ast_new($2, ast_data(SMARTPL_T_STRTAG, $1), ast_data(SMARTPL_T_STRING, $3)); }
| SMARTPL_T_INTTAG intbool SMARTPL_T_NUM { $$ = ast_new($2, ast_data(SMARTPL_T_INTTAG, $1), ast_int(SMARTPL_T_NUM, $3)); }
| SMARTPL_T_DATETAG datebool dateexpr { $$ = ast_new($2, ast_data(SMARTPL_T_DATETAG, $1), $3); }
| SMARTPL_T_DATAKINDTAG SMARTPL_T_IS datakind { $$ = ast_new(SMARTPL_T_EQUALS, ast_data(SMARTPL_T_DATAKINDTAG, $1), ast_int(SMARTPL_T_NUM, $3)); }
| SMARTPL_T_MEDIAKINDTAG SMARTPL_T_IS mediakind { $$ = ast_new(SMARTPL_T_EQUALS, ast_data(SMARTPL_T_MEDIAKINDTAG, $1), ast_int(SMARTPL_T_NUM, $3)); }
| SMARTPL_T_DATAKINDTAG SMARTPL_T_IS datakind { $$ = ast_new(SMARTPL_T_EQUAL, ast_data(SMARTPL_T_DATAKINDTAG, $1), ast_int(SMARTPL_T_NUM, $3)); }
| SMARTPL_T_MEDIAKINDTAG SMARTPL_T_IS mediakind { $$ = ast_new(SMARTPL_T_EQUAL, ast_data(SMARTPL_T_MEDIAKINDTAG, $1), ast_int(SMARTPL_T_NUM, $3)); }
| SMARTPL_T_NOT predicate { struct ast *a = $2; a->type |= INVERT_MASK; $$ = $2; }
;
@ -617,7 +618,7 @@ strbool: SMARTPL_T_IS
| SMARTPL_T_INCLUDES
;
intbool: SMARTPL_T_EQUALS
intbool: SMARTPL_T_EQUAL
| SMARTPL_T_LESS
| SMARTPL_T_LESSEQUAL
| SMARTPL_T_GREATER