This Month with Nim

[juancarlospaco]

Name: Cliche

Author: Juan Carlos

Posting: New Cliche version

• Added support for bool.
• Reads enum, Positive, Natural, BiggestInt, BiggestFloat, int, float directly from command line.
• Fallbacks for values: static default :arrow_right: env var :arrow_right: command line.
• Uses parseInt for int, parseFloat for float, parseEnum for enum, etc.

import std/strutils
import cliche
# Use https://nim-lang.github.io/Nim/os.html#commandLineParams
type Food = enum PIZZA, TACO  # Enum from CLI.
# let real = commandLineParams()
let fake = @["--a=1", "--v_1=9.9", "--v2=1", "--v3=2", "--v4=X", "--v5=t", "--v6=5", "--v7=true", "--food=PIZZA"]
fake.getOpt (a: int.high, v_1: 3.14, v2: 9'u64, v3: -9'i64, v4: "a", v5: '4', v6: 9.Positive, v7: false, missing: 42, food: TACO)
doAssert a == 1  # int
doAssert v_1 == 9.9  # float
doAssert v2 == 1'u64  # uint64
doAssert v3 == 2'i64  # int64
doAssert v4 == "X"  # string
doAssert v5 == 't'  # char
doAssert v6 == 5.Positive  # Positive
doAssert v7 == true  # bool
doAssert missing == 42 # missing is not in fake, fallback to default value 42.
doAssert food is Food and food == PIZZA  # food is Food.PIZZA

• https://github.com/juancarlospaco/cliche
• https://juancarlospaco.github.io/cliche