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mal/rexx/core.rexx

511 lines
14 KiB
Rexx

#ifndef __core__
#define __core__
#include "types.rexx"
mal_equal?: procedure expose values. /* mal_equal?(a, b) */
return new_boolean(equal?(arg(1), arg(2)))
mal_throw: procedure expose values. err /* mal_throw(a) */
err = "__MAL_EXCEPTION__" arg(1)
return "ERR"
mal_nil?: procedure expose values. /* mal_nil?(a) */
return new_boolean(nil?(arg(1)))
mal_true?: procedure expose values. /* mal_true?(a) */
return new_boolean(true?(arg(1)))
mal_false?: procedure expose values. /* mal_false?(a) */
return new_boolean(false?(arg(1)))
mal_string?: procedure expose values. /* mal_string?(a) */
return new_boolean(string?(arg(1)))
mal_symbol: procedure expose values. /* mal_symbol(a) */
return new_symbol(obj_val(arg(1)))
mal_symbol?: procedure expose values. /* mal_symbol?(a) */
return new_boolean(symbol?(arg(1)))
mal_keyword: procedure expose values. /* mal_keyword(a) */
return new_keyword(obj_val(arg(1)))
mal_keyword?: procedure expose values. /* mal_keyword?(a) */
return new_boolean(keyword?(arg(1)))
mal_number?: procedure expose values. /* mal_number?(a) */
return new_boolean(number?(arg(1)))
mal_fn?: procedure expose values. /* mal_fn?(a) */
return new_boolean(nativefn?(arg(1)) | (func?(arg(1)) & (func_is_macro(arg(1)) \= 1)))
mal_macro?: procedure expose values. /* mal_macro?(a) */
return new_boolean(func_macro?(arg(1)))
mal_pr_str: procedure expose values. /* mal_pr_str(...) */
res = ""
do i=1 to arg()
element = pr_str(arg(i), 1)
if i == 1 then
res = element
else
res = res || " " || element
end
return new_string(res)
mal_str: procedure expose values. /* mal_str(...) */
res = ""
do i=1 to arg()
element = pr_str(arg(i), 0)
if i == 1 then
res = element
else
res = res || element
end
return new_string(res)
mal_prn: procedure expose values. /* mal_prn(...) */
res = ""
do i=1 to arg()
element = pr_str(arg(i), 1)
if i == 1 then
res = element
else
res = res || " " || element
end
say res
return new_nil()
mal_println: procedure expose values. /* mal_println(...) */
res = ""
do i=1 to arg()
element = pr_str(arg(i), 0)
if i == 1 then
res = element
else
res = res || " " || element
end
say res
return new_nil()
mal_read_string: procedure expose values. /* mal_read_string(str) */
return read_str(obj_val(arg(1)))
mal_readline: procedure expose values. /* mal_readline(prompt) */
line = readline(obj_val(arg(1)))
if length(line) > 0 then return new_string(line)
if lines() > 0 then return new_string("")
return new_nil()
mal_slurp: procedure expose values. /* mal_read_string(filename) */
file_content = charin(obj_val(arg(1)), , 100000)
return new_string(file_content)
mal_lt: procedure expose values. /* mal_lt(a, b) */
return new_boolean(obj_val(arg(1)) < obj_val(arg(2)))
mal_lte: procedure expose values. /* mal_lte(a, b) */
return new_boolean(obj_val(arg(1)) <= obj_val(arg(2)))
mal_gt: procedure expose values. /* mal_gt(a, b) */
return new_boolean(obj_val(arg(1)) > obj_val(arg(2)))
mal_gte: procedure expose values. /* mal_gte(a, b) */
return new_boolean(obj_val(arg(1)) >= obj_val(arg(2)))
mal_add: procedure expose values. /* mal_add(a, b) */
return new_number(obj_val(arg(1)) + obj_val(arg(2)))
mal_sub: procedure expose values. /* mal_sub(a, b) */
return new_number(obj_val(arg(1)) - obj_val(arg(2)))
mal_mul: procedure expose values. /* mal_mul(a, b) */
return new_number(obj_val(arg(1)) * obj_val(arg(2)))
mal_div: procedure expose values. /* mal_div(a, b) */
return new_number(obj_val(arg(1)) / obj_val(arg(2)))
mal_time_ms: procedure expose values. /* mal_time_ms() */
return new_number(trunc(time('E') * 1000))
mal_list: procedure expose values. /* mal_list(...) */
res = ""
do i=1 to arg()
if i == 1 then
res = arg(i)
else
res = res || " " || arg(i)
end
return new_list(res)
mal_list?: procedure expose values. /* mal_list?(a) */
return new_boolean(list?(arg(1)))
mal_vector: procedure expose values. /* mal_vector(...) */
res = ""
do i=1 to arg()
if i == 1 then
res = arg(i)
else
res = res || " " || arg(i)
end
return new_vector(res)
mal_vector?: procedure expose values. /* mal_vector?(a) */
return new_boolean(vector?(arg(1)))
mal_hash_map: procedure expose values. /* mal_hash_map(...) */
res = ""
do i=1 to arg()
if i == 1 then
res = arg(i)
else
res = res || " " || arg(i)
end
return new_hashmap(res)
mal_map?: procedure expose values. /* mal_map?(a) */
return new_boolean(hashmap?(arg(1)))
mal_assoc: procedure expose values. /* mal_assoc(a, ...) */
hm = arg(1)
res = ""
do i=2 to arg() by 2
key_val = arg(i) || " " || arg(i + 1)
if res == 2 then
res = key_val
else
res = res || " " || key_val
end
hm_val = obj_val(hm)
do i=1 to words(hm_val) by 2
if \contains?(res, word(hm_val, i)) then
res = res || " " || word(hm_val, i) || " " || word(hm_val, i + 1)
end
return new_hashmap(res)
mal_dissoc: procedure expose values. /* mal_dissoc(a, ...) */
hm = arg(1)
res = ""
hm_val = obj_val(hm)
do i=1 to words(hm_val) by 2
key = word(hm_val, i)
found = 0
do j=2 to arg()
if equal?(key, arg(j)) then do
found = 1
leave
end
end
if \found then do
if length(res) > 0 then res = res || " "
res = res || key || " " || word(hm_val, i + 1)
end
end
return new_hashmap(res)
mal_get: procedure expose values. /* mal_get(a, b) */
res = hashmap_get(obj_val(arg(1)), arg(2))
if res == "" then
return new_nil()
else
return res
mal_contains?: procedure expose values. /* mal_contains?(a, b) */
return new_boolean(contains?(obj_val(arg(1)), arg(2)))
mal_keys: procedure expose values. /* mal_keys(a) */
hm_val = obj_val(arg(1))
seq = ""
do i=1 to words(hm_val) by 2
if i == 1 then
seq = word(hm_val, i)
else
seq = seq || " " || word(hm_val, i)
end
return new_list(seq)
mal_vals: procedure expose values. /* mal_vals(a) */
hm_val = obj_val(arg(1))
seq = ""
do i=2 to words(hm_val) by 2
if i == 1 then
seq = word(hm_val, i)
else
seq = seq || " " || word(hm_val, i)
end
return new_list(seq)
mal_sequential?: procedure expose values. /* mal_sequential?(a) */
return new_boolean(sequential?(arg(1)))
mal_cons: procedure expose values. /* mal_cons(a, b) */
return new_list(arg(1) || " " || obj_val(arg(2)))
mal_concat: procedure expose values. /* mal_concat(...) */
seq = ""
do i=1 to arg()
if i == 1 then
seq = obj_val(arg(i))
else
seq = seq || " " || obj_val(arg(i))
end
return new_list(seq)
mal_nth: procedure expose values. err /* mal_nth(list, index) */
list_val = obj_val(arg(1))
i = obj_val(arg(2))
if i >= words(list_val) then do
err = "nth: index out of range"
return "ERR"
end
return word(list_val, i + 1)
mal_first: procedure expose values. /* mal_first(a) */
if nil?(arg(1)) then return new_nil()
list_val = obj_val(arg(1))
if words(list_val) == 0 then return new_nil()
return word(list_val, 1)
mal_rest: procedure expose values. /* mal_rest(a) */
return new_list(subword(obj_val(arg(1)), 2))
mal_empty?: procedure expose values. /* mal_empty?(a) */
if nil?(arg(1)) then return new_true()
return new_boolean(count_elements(arg(1)) == 0)
mal_count: procedure expose values. /* mal_count(a) */
if nil?(arg(1)) then return new_number(0)
return new_number(count_elements(arg(1)))
apply_function: procedure expose values. env. err /* apply_function(fn, lst) */
f = arg(1)
call_args = arg(2)
select
when nativefn?(f) then do
call_args_val = obj_val(call_args)
call_list = ""
do i=1 to words(call_args_val)
element = '"' || word(call_args_val, i) || '"'
if i > 1 then
call_list = call_list || ', ' || element
else
call_list = element
end
res = ""
interpret "res = " || obj_val(f) || "(" || call_list || ")"
return res
end
when func?(f) then do
apply_env_idx = new_env(func_env_idx(f), func_binds(f), call_args)
return eval(func_body_ast(f), apply_env_idx)
end
otherwise
err = "Unsupported function object type: " || obj_type(f)
return "ERR"
end
mal_apply: procedure expose values. env. err /* mal_apply(fn, ..., lst) */
fn = arg(1)
seq = ""
do i=2 to (arg() - 1)
if i == 2 then
seq = arg(i)
else
seq = seq || " " || arg(i)
end
if arg() > 1 then do
seq = seq || " " || obj_val(arg(arg()))
end
return apply_function(fn, new_list(seq))
mal_map: procedure expose values. env. err /* mal_map(f, lst) */
fn = arg(1)
lst_val = obj_val(arg(2))
res = ""
do i=1 to words(lst_val)
element = word(lst_val, i)
mapped_element = apply_function(fn, new_list(element))
if mapped_element == "ERR" then return "ERR"
if i == 1 then
res = mapped_element
else
res = res || " " || mapped_element
end
return new_list(res)
mal_conj: procedure expose values. env. err /* mal_conj(a, ...) */
a = arg(1)
select
when list?(a) then do
do i=2 to arg()
a = mal_cons(arg(i), a)
end
return a
end
when vector?(a) then do
seq = obj_val(a)
do i=2 to arg()
if length(seq) > 0 then seq = seq || " "
seq = seq || arg(i)
end
return new_vector(seq)
end
otherwise
err = "conj requires list or vector"
return "ERR"
end
mal_seq: procedure expose values. env. err /* mal_conj(a) */
a = arg(1)
select
when string?(a) then do
str = obj_val(a)
if length(str) == 0 then return new_nil()
seq = ""
do i=1 to length(str)
element = new_string(substr(str, i, 1))
if i == 1 then
seq = element
else
seq = seq || " " || element
end
return new_list(seq)
end
when list?(a) then do
if count_elements(a) == 0 then return new_nil()
return a
end
when vector?(a) then do
if count_elements(a) == 0 then return new_nil()
return new_list(obj_val(a))
end
when nil?(a) then return new_nil()
otherwise
err = "seq requires string or list or vector or nil"
return "ERR"
end
mal_with_meta: procedure expose values. /* mal_with_meta(a, b) */
new_obj = obj_clone_and_set_meta(arg(1), arg(2))
if new_obj == "" then return arg(1)
return new_obj
mal_meta: procedure expose values. /* mal_meta(a) */
meta = obj_meta(arg(1))
if meta == "" then return new_nil()
return meta
mal_atom: procedure expose values. /* mal_atom(a) */
return new_atom(arg(1))
mal_atom?: procedure expose values. /* mal_atom?(a) */
return new_boolean(atom?(arg(1)))
mal_deref: procedure expose values. /* mal_deref(a) */
return obj_val(arg(1))
mal_reset!: procedure expose values. /* mal_reset!(a, new_val) */
return atom_set(arg(1), arg(2))
mal_swap!: procedure expose values. env. err /* mal_swap!(a, fn, ...) */
atom = arg(1)
fn = arg(2)
atom_val = obj_val(atom)
seq = atom_val
do i=3 to arg()
seq = seq || " " || arg(i)
end
new_val = apply_function(fn, new_list(seq))
if new_val == "ERR" then return "ERR"
return atom_set(atom, new_val)
mal_rexx_eval: procedure expose values. /* mal_rexx_eval(..., a) */
do i=1 to (arg() - 1)
interpret obj_val(arg(i))
end
last_arg = arg(arg())
if nil?(last_arg) then return new_nil()
last_arg_str = obj_val(last_arg)
if length(last_arg_str) == 0 then return new_nil()
rexx_eval_res = ""
interpret "rexx_eval_res = " || last_arg_str
if datatype(rexx_eval_res) == "NUM" then
return new_number(rexx_eval_res)
else
return new_string(rexx_eval_res)
get_core_ns: procedure /* get_core_ns() */
return "= mal_equal?" ,
"throw mal_throw" ,
,
"nil? mal_nil?" ,
"true? mal_true?" ,
"false? mal_false?" ,
"string? mal_string?" ,
"symbol mal_symbol" ,
"symbol? mal_symbol?" ,
"keyword mal_keyword" ,
"keyword? mal_keyword?" ,
"number? mal_number?" ,
"fn? mal_fn?" ,
"macro? mal_macro?" ,
,
"pr-str mal_pr_str" ,
"str mal_str" ,
"prn mal_prn" ,
"println mal_println" ,
"read-string mal_read_string" ,
"readline mal_readline" ,
"slurp mal_slurp" ,
,
"< mal_lt" ,
"<= mal_lte" ,
"> mal_gt" ,
">= mal_gte" ,
"+ mal_add" ,
"- mal_sub" ,
"* mal_mul" ,
"/ mal_div" ,
"time-ms mal_time_ms" ,
,
"list mal_list" ,
"list? mal_list?" ,
"vector mal_vector" ,
"vector? mal_vector?" ,
"hash-map mal_hash_map" ,
"map? mal_map?" ,
"assoc mal_assoc" ,
"dissoc mal_dissoc" ,
"get mal_get" ,
"contains? mal_contains?" ,
"keys mal_keys" ,
"vals mal_vals" ,
,
"sequential? mal_sequential?" ,
"cons mal_cons" ,
"concat mal_concat" ,
"nth mal_nth" ,
"first mal_first" ,
"rest mal_rest" ,
"empty? mal_empty?" ,
"count mal_count" ,
"apply mal_apply" ,
"map mal_map" ,
,
"conj mal_conj" ,
"seq mal_seq" ,
,
"meta mal_meta" ,
"with-meta mal_with_meta" ,
"atom mal_atom" ,
"atom? mal_atom?" ,
"deref mal_deref" ,
"reset! mal_reset!" ,
"swap! mal_swap!" ,
,
"rexx-eval mal_rexx_eval"
#endif