quinn-os/my-basic
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+added a range of integer syntax.

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+Added a range of integer syntax for the LIST statement, eg. LIST(m TO
n).
This commit is contained in:
Wang Renxin 2016-01-16 14:01:02 +08:00
parent 76671ecfa9
commit 74f6f054b4
3 changed files with 33 additions and 3 deletions
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3
HISTORY
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@ -1,3 +1,6 @@
Jan. 16 2016
Added a range of integer syntax for the LIST statement, eg. LIST(m TO n)
Jan. 15 2016
Added a REFLECT statement
Added an MB_ENABLE_USERTYPE_REF macro

2
README.md
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@ -44,7 +44,7 @@ MY-BASIC is a dynamic typed programming language with BASIC syntax and has a ver
* Collection implementation and manipulation functions for **`LIST`** and **`DICT`**
* Automatic releasing of referenced objects (list, dictionary, referenced usertype, prototype, lambda, etc.) benefited from **Reference Counting** and **Garbage Collection**
* Multiple file support by `IMPORT` statement
* Structured user customizable **sub routine** definition by **`DEF/ENDDEF`** support, including tail recursion optimization
* Structured user customizable **sub routine** definition by **`DEF-ENDDEF`** support, including tail recursion optimization
* Structured `IF-THEN-ELSEIF-ELSE-ENDIF` support
* Structured `FOR-TO-STEP-NEXT/WHILE-WEND/DO-UNTIL` support
* Reserved retro `GOTO/GOSUB-RETURN` support

31
core/my_basic.c
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@ -13511,10 +13511,37 @@ int _coll_list(mb_interpreter_t* s, void** l) {
coll = _create_list(s);
while(mb_has_arg(s, l)) {
if(mb_has_arg(s, l)) {
_ls_node_t* ast = 0;
_object_t* obj = 0;
mb_make_nil(arg);
_mb_check_mark(mb_pop_value(s, l, &arg), result, _error);
_push_list(coll, &arg, 0);
ast = (_ls_node_t*)*l;
if(ast) obj = (_object_t*)ast->data;
if(arg.type == MB_DT_INT && obj && _IS_FUNC(obj, _core_to)) {
/* Push a range of integer */
int_t begin = arg.value.integer;
int_t end = 0;
int_t step = 0;
ast = ast->next;
_mb_check_mark(mb_pop_int(s, (void**)&ast, &end), result, _error);
step = sgn(end - begin);
end += step;
do {
mb_make_int(arg, begin);
_push_list(coll, &arg, 0);
begin += step;
} while(begin != end);
*l = ast;
} else {
/* Push arguments */
_push_list(coll, &arg, 0);
while(mb_has_arg(s, l)) {
mb_make_nil(arg);
_mb_check_mark(mb_pop_value(s, l, &arg), result, _error);
_push_list(coll, &arg, 0);
}
}
}
_mb_check_mark(mb_attempt_close_bracket(s, l), result, _error);