Linear Search in Mathematica

Welcome to the Linear Search in Mathematica page! Here, you'll find the source code for this program as well as a description of how the program works.

Current Solution

(* Code *)

(* This is simply the 'FirstCase' built-in.  Only an outer function is needed to provide the 'user interface': *)

linearSearchMain = Function[{list, value},
   Module[{e = "Usage: please provide a list of integers (\"1, 4, 5, 11, 12\") and the integer to find (\"11\")"},
    Catch[
     Replace[
      FirstCase @@ Map[
        (* convert string to integer, or throw *)
        s \[Function] If[StringMatchQ[s, DigitCharacter ..],
          FromDigits[s],
          Throw[e]],
        (* construct arguments to FirstCase: list of items and value to search *)
        {StringSplit[If[list != "", list, Throw[e]], ", "], value},
        {-1} (* at each leaf *)],
      {_Missing -> "false", _ -> "true"}]]]];


(* Valid Tests *)

Print /@ Apply[linearSearchMain] /@ {
    {"1, 3, 5, 7", "1"},
    {"1, 3, 5, 7", "7"},
    {"1, 3, 5, 7", "5"},
    {"5", "5"},
    {"5", "7"},
    {"1, 3, 5, 6", "7"}
    };


(* Invalid Tests *)

linearSearchMain["1, 2, 3, 4", ""]
linearSearchMain["", "5"]

Linear Search in Mathematica was written by:

• Ben Hekster

If you see anything you'd like to change or update, please consider contributing.

How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.