NIMROD

NIMROD (n.): Hebrew
Great Hunter

what is NIMROD?

NIMROD is a programming language that focuses on compile time mechanisms in various forms

Untitled Slide

# compute average line length
var count = 0
var sum = 0

for line in stdin.lines:
count += 1
sum += line.len

echo "Average line length: ",
if count > 0: sum / count else: 0

how is NIMROD different?

efficiency

• native code generation
• ability to manage own memory
• access hardware directly
• value based datatypes
• dead code elimination

EXPRESSIVE

• compiler & library are implemented
• built-in high datatypes
• modern type system
• user-definable operators
• macros can modify abstract syntax

ELEGANCE

• imperative paradigm
• flexible syntax
• statements grouped by indentation

COMPATIBILITY

• runs on several platforms
• can generate C++ and Objective C
• several bindings
• C to Nimrod conversion

HELLO WORLD

# This is a comment
echo("What's your name? ")
var name: string = readLine(stdin)
echo("Hi, ", name, "!")

IF STATEMENT

let name = readLine(stdin)
if name == "":
echo("Poor soul, you lost your name?")
elif name == "name":
echo("Very funny, your name is name.")
else:
echo("Hi, ", name, "!")

CASE STATEMENT

let name = readLine(stdin)
case name
of "":
echo("Poor soul, you lost your name?")
of "name":
echo("Very funny, your name is name.")
of "Dave", "Frank":
echo("Cool name!")
else:
echo("Hi, ", name, "!")

from strutils import parseInt

echo("A number please: ")
let n = parseInt(readLine(stdin))
case n
of 0..2, 4..7: echo("The number is in the set: {0, 1, 2, 4, 5, 6, 7}")
of 3, 8: echo("The number is 3 or 8")

WHILE STATEMENT

echo("What's your name? ")
var name = readLine(stdin)
while name == "":
echo("Please tell me your name: ")
name = readLine(stdin)
# no ``var``, because we do not declare a new variable here

FOR STATEMENT

echo("Counting to ten: ")
for i in countup(1, 10):
echo($i)
# --> Outputs 1 2 3 4 5 6 7 8 9 10 on different lines

BASIC TYPES
boolean
character
string
integer
float

IT02 finals
Chelsea Mendoza
24 March 2014