90 lines
2.2 KiB
Text
90 lines
2.2 KiB
Text
oscript {
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%whitespace "[ \t\r\n]*";
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%none error;
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%none integer;
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%left '(' ')';
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%left '+' '-';
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%left '*' '/';
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%left '.' '=';
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%left '==' '>' '<' '>=' '<=' '!=' '!';
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%left ';';
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script : stmts [tmp];
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scope:
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'{' stmts '}' [scope]
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| '{' '}' [scope_empty];
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stmts:
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stmts stmt [stm_list_append]
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| stmt [stm_list_create];
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stmt:
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stm_var_def_new_type ';' [tmp]
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| stm_var_def_assign ';' [tmp]
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| stm_log ';' [tmp]
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| stm_assign ';' [tmp]
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| stm_while [tmp]
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| stm_return ';' [tmp]
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| stm_break ';' [tmp]
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| stm_if [tmp]
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| stm_def_class [tmp]
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| stm_def_method [tmp]
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| stm_ignore ';' [tmp]
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;
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stm_def_method: 'method' id '(' id_list ')' scope [stm_def_method];
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stm_def_class: 'class' id scope [stm_def_class];
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stm_if:
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'if' '(' expr ')' scope [stm_if]
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| 'if' '(' expr ')' scope 'else' scope [stm_if];
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stm_break: 'break' [stm_break];
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stm_return: 'return' expr [stm_return] | 'return' [stm_return];
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stm_while: 'while' '(' expr ')' scope [stm_while_loop];
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stm_var_def_new_type: 'var' id ':' id [stm_var_def_new_type];
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stm_var_def_assign: 'var' id '=' expr [stm_var_def_assign];
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stm_log: 'print' expr [stm_log];
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stm_assign : expr '=' expr [stm_assign];
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stm_ignore : expr [stm_ignore];
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expr_list:
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expr_list ',' expr ',' [expr_list_append]
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| expr [expr_list_create]
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| ;
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id_list:
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id_list ',' id ',' [id_list_append]
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| id [id_list_create]
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| ;
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expr:
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id '(' expr_list ')' [expr_function]
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| expr '.' id '(' expr_list ')' [expr_method]
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| expr '.' id [expr_child]
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| expr '==' expr [expr_bool_eq]
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| '!' expr [expr_bool_negate]
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| expr '!=' expr [expr_bool_neq]
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| expr '>' expr [expr_bool_grater]
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| expr '<' expr [expr_bool_lesser]
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| expr '>=' expr [expr_bool_grater_eq]
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| expr '<=' expr [expr_bool_lesser_eq]
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| expr '+' expr [expr_add]
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| expr '-' expr [expr_subtract]
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| expr '*' expr [expr_multiply]
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| expr '/' expr [expr_divide]
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| '(' expr ')' [expr_compound]
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| boolean [expr_bool]
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| integer [expr_int]
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| real [expr_float]
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| string [expr_string]
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| id [expr_id]
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;
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id: "[a-z]";
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boolean: "true|false";
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integer: "(\+|\-)?[0-9]+";
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real: "(\+|\-)?[0-9]+(\.[0-9]+)?((e|E)(\+|\-)?[0-9]+)?";
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string: "[\"']:string:";
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}
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