1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
from .. import TypeEnum, Environment, Arg, Builtin, evaluate, InterpretPanic
from ..structs import *
STRINGS = Environment()
def interpretConcat(symbol, args, env, ns):
out = ""
for arg in args:
out += arg.value
return String(out)
string_arg = Arg("arg", TypeEnum.STRING)
STRINGS.register("concat", Builtin("concat", interpretConcat, [string_arg, string_arg], string_arg, Type(":string")))
def interpretStrip(symbol, args, env, ns):
return String(args[0].value.strip())
STRINGS.register("strip", Builtin("strip", interpretStrip, [Arg("filename", TypeEnum.STRING)], return_type=Type(":string")))
def interpretSplit(symbol, args, env, ns):
target = args[0]
if len(args) == 1:
return List([String(char) for char in target.value])
splitter = args[1]
ret = target.value.split(splitter.value)
return List([String(r) for r in ret])
STRINGS.register("split", Builtin("split", interpretSplit, [Arg("target", TypeEnum.STRING)], Arg("splitter", TypeEnum.STRING, optional=True), Type(":list")))
def interpretJoin(symbol, args, env, ns):
lst = args[0]
target = args[1]
return String(target.value.join([a.value for a in lst.args]))
join_list_arg = Arg("list", TypeEnum.LIST)
join_string_arg = Arg("joiner", TypeEnum.STRING)
STRINGS.register("join", Builtin("join", interpretJoin, [join_list_arg, join_string_arg], return_type=Type(":string")))
def interpretFirstChar(symbol, args, env, ns):
if len(args[0].value) == 0:
raise InterpretPanic(symbol, ":string is empty", ev)
return String(args[0].value[0])
STRINGS.register("first-char", Builtin("first-char", interpretFirstChar, [Arg("string", TypeEnum.STRING)], return_type=Type(":string")))
def interpretRestChar(symbol, args, env, ns):
return String(args[0].value[1:])
STRINGS.register("rest-char", Builtin("rest-char", interpretRestChar, [Arg("string", TypeEnum.STRING)], return_type=Type(":string")))
def interpretLength(symbol, args, env, ns):
return Int(len(args[0].value))
STRINGS.register("length", Builtin("length", interpretLength, [Arg("string", TypeEnum.STRING)], return_type=Type(":int")))
|
