Merge pull request #158 from radon-project/stdlib-io

feat: added `io` stdlib support.

core/errors.py

@@ -55,6 +55,7 @@ class Error:
     pos_end: Position
     error_name: str
     details: Optional[str]
+    context: Optional[Context] = None
 
     def as_string(self) -> str:
         """Return error as string"""

core/tokens.py

@@ -15,6 +15,7 @@
     "argparser",
     "array",
     "colorlib",
+    "io",
     "math",
     "radiation",
     "system",

examples/files.rn

@@ -2,6 +2,14 @@
 f = File("examples/files.rn")
 contents = f.read()
 f.close()
+f.is_closed()
 
 print(contents)
 
+print("-------------")
+
+f = File("examples/files.rn")
+print(f.readline())
+print(f.readlines())
+
+f.close()

examples/io-test.rn

@@ -0,0 +1,17 @@
+import io
+
+var int_num = io.Input.get_int("Enter an integer number: ")
+print(int_num)
+
+var float_num = io.Input.get_float("Enter a float number: ")
+print(float_num)
+
+var str_val = io.Input.get_string("Enter a string: ")
+print(str_val)
+
+var password = io.Input.get_password("Enter a password: ")
+print(password)
+
+# issue here
+var val = input("Enter a value: ")
+io.Output.write(val)

stdlib/io.rn

@@ -0,0 +1,53 @@
+import radiation
+
+
+class Input {
+    static fun get_int(text="") {
+        const _val = input(text)
+        try {
+            return int(_val)
+        } catch as err {
+            raise radiation.ValueError("Invalid input")
+        }
+    }
+
+    static fun get_float(text="") {
+        const _val = input(text)
+        try {
+            return float(_val)
+        } catch as err {
+            raise radiation.ValueError("Invalid input")
+        }
+    }
+
+    static fun get_string(text="") {
+        return input(text)
+    }
+
+    static fun get_bool(text="") {
+        const _val = String(input(text))
+        if _val.casefold() == "true" {
+            return true
+        } elif _val.casefold() == "false" {
+            return false
+        } else {
+            raise radiation.ValueError("Invalid input")
+        }
+    }
+
+    static fun get_password(text="") {
+        var ns = {"text": text}
+        pyapi("import getpass; val = getpass.getpass(text)", ns)
+        return ns["val"]
+    }
+}
+
+class Output {
+    static fun write(...values, sep=" ", end="\n") {       
+        var output = ""
+        for value in values {
+            output += str(value) + sep
+        }
+        print(output + end)
+    }
+}