added my own from ps3
parent
6856407f38
commit
a5f6aaf1fa
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@ -10,8 +10,16 @@ typedef struct n {
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struct n **children;
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} node_t;
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// Export the initializer function, it is needed by the parser
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void node_init (
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/**Export the initializer function, it is needed by the parser
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* @param *nd node to initialize
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* @param type type of node (see nodetype.h)
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* @param *data associated data. Declared void to allow any type
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* @param n_children number of children
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* @param ... variable argument list of child nodes (node_t *)
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*
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* @return Pointer to the initialized node
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* */
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node_t* node_init (
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node_t *nd, node_index_t type, void *data, uint64_t n_children, ...
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);
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@ -25,6 +25,7 @@ int yyerror ( const char *error );
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/* These are defined in the parser generated by bison */
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extern int yylineno;
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extern int yylex ( void );
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extern int yylex_destroy( void );
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extern char yytext[];
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/* Global state */
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@ -1,176 +1,303 @@
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%{
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#include <vslc.h>
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#define N0C(n,t,d) do { \
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node_init ( n = malloc(sizeof(node_t)), t, d, 0 ); \
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} while ( false )
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#define N1C(n,t,d,a) do { \
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node_init ( n = malloc(sizeof(node_t)), t, d, 1, a ); \
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} while ( false )
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#define N2C(n,t,d,a,b) do { \
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node_init ( n = malloc(sizeof(node_t)), t, d, 2, a, b ); \
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} while ( false )
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#define N3C(n,t,d,a,b,c) do { \
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node_init ( n = malloc(sizeof(node_t)), t, d, 3, a, b, c ); \
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} while ( false )
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#define NODE(type, data, n_children, children...) node_init(malloc(sizeof(node_t)), type, data, n_children, ##children)
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%}
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%left '|'
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%left '^'
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%left '&'
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%define api.value.type {node_t}
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%token FUNC PRINT RETURN CONTINUE IF THEN ELSE WHILE DO OPENBLOCK CLOSEBLOCK
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%token VAR NUMBER IDENTIFIER STRING
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%left '|' '&' '^'
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%left '+' '-'
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%left '*' '/'
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%nonassoc UMINUS
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%right '~'
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%expect 1
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//%expect 1
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%token FUNC PRINT RETURN CONTINUE IF THEN ELSE WHILE DO OPENBLOCK CLOSEBLOCK
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%token VAR NUMBER IDENTIFIER STRING
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%nonassoc IF THEN
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%nonassoc ELSE
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/* Tried fixing vscode complaining about the type for the non-terminals, didn't work
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%union {
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node_t* node;
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}
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%type <node> global_list global
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%type <node> statement_list print_list expression_list variable_list argument_list parameter_list declaration_list
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%type <node> function statement block
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%type <node> assignment_statement return_statement print_statement null_statement if_statement while_statement
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%type <node> relation expression declaration print_item identifier number string
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*/
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%%
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program :
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global_list { N1C ( root, PROGRAM, NULL, $1 ); }
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;
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global_list :
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global { N1C ( $$, GLOBAL_LIST, NULL, $1 ); }
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| global_list global { N2C ( $$, GLOBAL_LIST, NULL, $1, $2 ); }
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;
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program:
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global_list {
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root = NODE(PROGRAM, NULL, 1, $1);
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}
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;
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global_list:
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global {
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$$ = NODE(GLOBAL_LIST, NULL, 1, $1);
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}
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| global_list global {
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$$ = NODE(GLOBAL_LIST, NULL, 2, $1, $2);
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}
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;
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global:
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function { N1C ( $$, GLOBAL, NULL, $1 ); }
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| declaration { N1C ( $$, GLOBAL, NULL, $1 ); }
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;
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statement_list :
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statement { N1C ( $$, STATEMENT_LIST, NULL, $1 ); }
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| statement_list statement { N2C ( $$, STATEMENT_LIST, NULL, $1, $2 ); }
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;
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print_list :
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print_item { N1C ( $$, PRINT_LIST, NULL, $1 ); }
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| print_list ',' print_item { N2C ( $$, PRINT_LIST, NULL, $1, $3 ); }
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;
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expression_list :
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expression { N1C ( $$, EXPRESSION_LIST, NULL, $1 ); }
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| expression_list ',' expression { N2C($$, EXPRESSION_LIST, NULL, $1, $3); }
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;
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variable_list :
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identifier { N1C ( $$, VARIABLE_LIST, NULL, $1 ); }
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| variable_list ',' identifier { N2C ( $$, VARIABLE_LIST, NULL, $1, $3 ); }
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;
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argument_list :
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expression_list { N1C ( $$, ARGUMENT_LIST, NULL, $1 ); }
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| /* epsilon */ { $$ = NULL; }
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;
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parameter_list :
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variable_list { N1C ( $$, PARAMETER_LIST, NULL, $1 ); }
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| /* epsilon */ { $$ = NULL; }
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;
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declaration_list :
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declaration { N1C ( $$, DECLARATION_LIST, NULL, $1 ); }
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| declaration_list declaration { N2C ($$, DECLARATION_LIST, NULL, $1, $2); }
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;
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function :
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FUNC identifier '(' parameter_list ')' statement
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{ N3C ( $$, FUNCTION, NULL, $2, $4, $6 ); }
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;
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statement :
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assignment_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| return_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| print_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| if_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| while_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| null_statement { N1C ( $$, STATEMENT, NULL, $1 ); }
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| block { N1C ( $$, STATEMENT, NULL, $1 ); }
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;
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block :
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OPENBLOCK declaration_list statement_list CLOSEBLOCK
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{ N2C ($$, BLOCK, NULL, $2, $3); }
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| OPENBLOCK statement_list CLOSEBLOCK { N1C ($$, BLOCK, NULL, $2 ); }
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;
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assignment_statement :
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identifier ':' '=' expression
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{ N2C ( $$, ASSIGNMENT_STATEMENT, NULL, $1, $4 ); }
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| identifier '+' '=' expression
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{ N2C ( $$, ADD_STATEMENT, NULL, $1, $4 ); }
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| identifier '-' '=' expression
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{ N2C ( $$, SUBTRACT_STATEMENT, NULL, $1, $4 ); }
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| identifier '*' '=' expression
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{ N2C ( $$, MULTIPLY_STATEMENT, NULL, $1, $4 ); }
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| identifier '/' '=' expression
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{ N2C ( $$, DIVIDE_STATEMENT, NULL, $1, $4 ); }
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;
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return_statement :
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RETURN expression
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{ N1C ( $$, RETURN_STATEMENT, NULL, $2 ); }
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;
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print_statement :
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PRINT print_list
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{ N1C ( $$, PRINT_STATEMENT, NULL, $2 ); }
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;
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null_statement :
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CONTINUE
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{ N0C ( $$, NULL_STATEMENT, NULL ); }
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;
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if_statement :
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IF relation THEN statement
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{ N2C ( $$, IF_STATEMENT, NULL, $2, $4 ); }
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| IF relation THEN statement ELSE statement
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{ N3C ( $$, IF_STATEMENT, NULL, $2, $4, $6 ); }
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;
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while_statement :
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WHILE relation DO statement
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{ N2C ( $$, WHILE_STATEMENT, NULL, $2, $4 ); }
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;
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function {
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$$ = NODE(GLOBAL, NULL, 1, $1);
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}
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| declaration {
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$$ = NODE(GLOBAL, NULL, 1, $1);
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}
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;
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statement_list:
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statement {
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$$ = NODE(STATEMENT_LIST, NULL, 1, $1);
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}
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| statement_list statement {
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$$ = NODE(STATEMENT_LIST, NULL, 2, $1, $2);
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}
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;
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print_list:
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print_item {
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$$ = NODE(PRINT_LIST, NULL, 1, $1);
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}
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| print_list ',' print_item {
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$$ = NODE(PRINT_LIST, NULL, 2, $1, $3);
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}
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;
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expression_list:
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expression {
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$$ = NODE(EXPRESSION_LIST, NULL, 1, $1);
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}
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| expression_list ',' expression {
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$$ = NODE(EXPRESSION_LIST, NULL, 2, $1, $3);
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}
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;
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variable_list:
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identifier {
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$$ = NODE(VARIABLE_LIST, NULL, 1, $1);
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}
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| variable_list ',' identifier {
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$$ = NODE(VARIABLE_LIST, NULL, 2, $1, $3);
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}
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;
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argument_list:
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expression_list {
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$$ = NODE(ARGUMENT_LIST, NULL, 1, $1);
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}
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| /* epsilon */ {
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$$ = NODE(ARGUMENT_LIST, NULL, 0);
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}
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;
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parameter_list:
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variable_list {
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$$ = NODE(PARAMETER_LIST, NULL, 1, $1);
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}
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| /* epsilon */ {
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$$ = NODE(PARAMETER_LIST, NULL, 0);
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}
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;
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declaration_list:
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declaration {
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$$ = NODE(DECLARATION_LIST, NULL, 1, $1);
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}
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| declaration_list declaration {
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$$ = NODE(DECLARATION_LIST, NULL, 2, $1, $2);
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}
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;
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function:
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FUNC identifier '(' parameter_list ')' statement {
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$$ = NODE(FUNCTION, NULL, 3, $2, $4, $6);
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}
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;
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statement:
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assignment_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| return_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| print_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| if_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| while_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| null_statement {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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| block {
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$$ = NODE(STATEMENT, NULL, 1, $1);
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}
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;
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block:
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OPENBLOCK declaration_list statement_list CLOSEBLOCK {
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$$ = NODE(BLOCK, NULL, 2, $2, $3);
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}
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| OPENBLOCK statement_list CLOSEBLOCK {
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$$ = NODE(BLOCK, NULL, 1, $2);
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}
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;
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assignment_statement:
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identifier ':' '=' expression {
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$$ = NODE(ASSIGNMENT_STATEMENT, NULL, 2, $1, $4);
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}
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| identifier '+' '=' expression {
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$$ = NODE(ADD_STATEMENT, NULL, 2, $1, $4);
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}
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| identifier '-' '=' expression {
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$$ = NODE(SUBTRACT_STATEMENT, NULL, 2, $1, $4);
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}
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| identifier '*' '=' expression {
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$$ = NODE(MULTIPLY_STATEMENT, NULL, 2, $1, $4);
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}
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| identifier '/' '=' expression {
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$$ = NODE(DIVIDE_STATEMENT, NULL, 2, $1, $4);
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}
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;
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return_statement:
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RETURN expression {
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$$ = NODE(RETURN_STATEMENT, NULL, 1, $2);
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}
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;
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print_statement:
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PRINT print_list {
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$$ = NODE(PRINT_STATEMENT, NULL, 1, $2);
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}
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;
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null_statement:
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CONTINUE {
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$$ = NODE(NULL_STATEMENT, NULL, 0);
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}
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;
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if_statement:
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IF relation THEN statement {
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$$ = NODE(IF_STATEMENT, NULL, 2, $2, $4);
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}
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| IF relation THEN statement ELSE statement {
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$$ = NODE(IF_STATEMENT, NULL, 3, $2, $4, $6);
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}
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;
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while_statement:
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WHILE relation DO statement {
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$$ = NODE(WHILE_STATEMENT, NULL, 2, $2, $4);
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}
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;
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relation:
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expression '=' expression
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{ N2C ( $$, RELATION, strdup("="), $1, $3 ); }
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| expression '<' expression
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{ N2C ( $$, RELATION, strdup("<"), $1, $3 ); }
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| expression '>' expression
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{ N2C ( $$, RELATION, strdup(">"), $1, $3 ); }
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;
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expression :
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expression '|' expression
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{ N2C ( $$, EXPRESSION, strdup("|"), $1, $3 ); }
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| expression '^' expression
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{ N2C ( $$, EXPRESSION, strdup("^"), $1, $3 ); }
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| expression '&' expression
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{ N2C ( $$, EXPRESSION, strdup("&"), $1, $3 ); }
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| expression '+' expression
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{ N2C ( $$, EXPRESSION, strdup("+"), $1, $3 ); }
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| expression '-' expression
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{ N2C ( $$, EXPRESSION, strdup("-"), $1, $3 ); }
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| expression '*' expression
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{ N2C ( $$, EXPRESSION, strdup("*"), $1, $3 ); }
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| expression '/' expression
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{ N2C ( $$, EXPRESSION, strdup("/"), $1, $3 ); }
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| '-' expression %prec UMINUS
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{ N1C ( $$, EXPRESSION, strdup("-"), $2 ); }
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| '~' expression %prec UMINUS
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{ N1C ( $$, EXPRESSION, strdup("~"), $2 ); }
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| '(' expression ')' { $$ = $2; }
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| number { N1C ( $$, EXPRESSION, NULL, $1 ); }
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| identifier
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{ N1C ( $$, EXPRESSION, NULL, $1 ); }
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| identifier '(' argument_list ')'
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{ N2C ( $$, EXPRESSION, NULL, $1, $3 ); }
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;
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declaration :
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VAR variable_list { N1C ( $$, DECLARATION, NULL, $2 ); }
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;
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print_item :
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expression
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{ N1C ( $$, PRINT_ITEM, NULL, $1 ); }
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| string
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{ N1C ( $$, PRINT_ITEM, NULL, $1 ); }
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;
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identifier: IDENTIFIER { N0C($$, IDENTIFIER_DATA, strdup(yytext) ); }
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number: NUMBER
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{
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int64_t *value = malloc ( sizeof(int64_t) );
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*value = strtol ( yytext, NULL, 10 );
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N0C($$, NUMBER_DATA, value );
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}
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string: STRING { N0C($$, STRING_DATA, strdup(yytext) ); }
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expression '=' expression {
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$$ = NODE(RELATION, strdup("="), 2, $1, $3);
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}
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| expression '<' expression {
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$$ = NODE(RELATION, strdup("<"), 2, $1, $3);
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}
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| expression '>' expression {
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$$ = NODE(RELATION, strdup(">"), 2, $1, $3);
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}
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;
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expression:
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expression '|' expression {
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$$ = NODE(EXPRESSION, strdup("|"), 2, $1, $3);
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}
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| expression '^' expression {
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$$ = NODE(EXPRESSION, strdup("^"), 2, $1, $3);
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}
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| expression '&' expression {
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$$ = NODE(EXPRESSION, strdup("&"), 2, $1, $3);
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}
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| expression '+' expression {
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$$ = NODE(EXPRESSION, strdup("+"), 2, $1, $3);
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}
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| expression '-' expression {
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$$ = NODE(EXPRESSION, strdup("-"), 2, $1, $3);
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}
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| expression '*' expression {
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$$ = NODE(EXPRESSION, strdup("*"), 2, $1, $3);
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}
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| expression '/' expression {
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$$ = NODE(EXPRESSION, strdup("/"), 2, $1, $3);
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}
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| '-' expression %prec UMINUS {
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$$ = NODE(EXPRESSION, strdup("-"), 1, $2);
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}
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| '~' expression {
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$$ = NODE(EXPRESSION, strdup("~"), 1, $2);
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}
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| '(' expression ')' {
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$$ = NODE(EXPRESSION, /*NULL*/ strdup("group"), 1, $2);
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}
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| number {
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$$ = NODE(EXPRESSION, /*NULL*/ strdup("number"), 1, $1);
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}
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| identifier {
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$$ = NODE(EXPRESSION, /*NULL*/ strdup("identifier"), 1, $1);
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}
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| identifier '(' argument_list ')' {
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$$ = NODE(EXPRESSION, /*NULL*/ strdup("function_call"), 2, $1, $3);
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}
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;
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declaration:
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VAR variable_list {
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$$ = NODE(DECLARATION, NULL, 1, $2);
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}
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;
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print_item:
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expression {
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$$ = NODE(PRINT_ITEM, NULL, 1, $1);
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}
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| string {
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$$ = NODE(PRINT_ITEM, NULL, 1, $1);
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}
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;
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identifier:
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IDENTIFIER {
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$$ = NODE(IDENTIFIER_DATA, strdup(yytext), 0); // Zero children
|
||||
}
|
||||
;
|
||||
|
||||
number:
|
||||
NUMBER {
|
||||
uint64_t* p_number = malloc(sizeof(uint64_t));
|
||||
*p_number = strtol(yytext, NULL, 10);
|
||||
$$ = NODE(NUMBER_DATA, p_number, 0); // Zero children
|
||||
}
|
||||
;
|
||||
|
||||
string:
|
||||
STRING {
|
||||
$$ = NODE(STRING_DATA, strdup(yytext), 0); // Zero children
|
||||
}
|
||||
;
|
||||
|
||||
%%
|
||||
|
||||
int
|
||||
|
|
|
|||
|
|
@ -28,6 +28,7 @@ main ( int argc, char **argv )
|
|||
options ( argc, argv );
|
||||
|
||||
yyparse(); // Generated from grammar/bison, constructs syntax tree
|
||||
yylex_destroy(); // Free heap used by flex
|
||||
|
||||
if ( print_full_tree )
|
||||
print_syntax_tree ();
|
||||
|
|
|
|||
Loading…
Reference in New Issue