Nim/tests/stdlib/tparseutils.nim

import std/[parseutils, sequtils, sugar]


let input = "$test{}  $this is ${an{  example}}  "
let expected = @[(ikVar, "test"), (ikStr, "{}  "), (ikVar, "this"),
                  (ikStr, " is "), (ikExpr, "an{  example}"), (ikStr, "  ")]
doAssert toSeq(interpolatedFragments(input)) == expected

var value = 0
discard parseHex("0x38", value)
doAssert value == 56

value = -1
doAssert(parseSaturatedNatural("848", value) == 3)
doAssert value == 848

value = -1
discard parseSaturatedNatural("84899999999999999999324234243143142342135435342532453", value)
doAssert value == high(int)

value = -1
discard parseSaturatedNatural("9223372036854775808", value)
doAssert value == high(int)

value = -1
discard parseSaturatedNatural("9223372036854775807", value)
doAssert value == high(int)

value = -1
discard parseSaturatedNatural("18446744073709551616", value)
doAssert value == high(int)

value = -1
discard parseSaturatedNatural("18446744073709551615", value)
doAssert value == high(int)

value = -1
doAssert(parseSaturatedNatural("1_000_000", value) == 9)
doAssert value == 1_000_000

var i64Value: int64
discard parseBiggestInt("9223372036854775807", i64Value)
doAssert i64Value == 9223372036854775807

block:
  var f: float
  let res = collect:
    for x in ["9.123456789012345+","11.123456789012345+","9.123456789012345-","8.123456789012345+","9.12345678901234-","9.123456789012345"]:
      (parseFloat(x, f, 0), $f)
  doAssert res == @[(17, "9.123456789012344"), (18, "11.123456789012344"),
                    (17, "9.123456789012344"), (17, "8.123456789012344"),
                    (16, "9.12345678901234"), (17, "9.123456789012344")]