Zigazou / ArrowPointing

Follows an arrow on a text file

ArrowPointing

This small project tries to follow an arrow and output the character it is pointing to. It follows the code golfing of described at http://codegolf.stackexchange.com/questions/57952/where-is-the-arrow-pointing except it does not golf :-)

Rules

Here are the rules from the challenge:

The input will be a multiline-string in which you need to find the character the arrow is pointing. There will only be one valid arrow. The valid arrow will only point to alphanumeric characters excluding S. A line will never overlap itself. e.g. -|-

• S (capital) represents where the arrow starts.
• - represents a horizontal line
• + represents a possible change in axis. A valid arrow will never start with a +. Another + may be adjacent but the arrow should prioritize going on a - or | first.
• | represents a vertical line
• > < V ^ any of these represent the arrow head. These will never connect to a +.

There will only be one S in the string. The input will also be padded to be a rectangle (not necessarily a square)

Additions

The program is able to enhance the looking of each problem, like:

  +--S--+  
O<|  |  |>O
  +-+++-+  
  +-+++-+  
  +-+++-+  
O<|  |  |>O
  +->E<-+  

into this:

  ┌──●──┐  
O◀│  │  │▶O
  ├─┬┼┬─┤  
  ├─┼┼┼─┤  
  ├─┴┼┴─┤  
O◀│  │  │▶O
  └─▶E◀─┘  

The executable

When compiled the executable must be run at the root of the project because it will look for valid*.txt files into the test directory.