Is this continuous terrain? Part II
Caves and Cliffs edition
You're given a piece of ASCII art representing a piece of land, like so:
/‾\ _ __
__/ _/ \‾
_/ __/‾\ |
/ / ‾\ |
\_/‾ \_/
But unlike in the previous challenge, the terrain is mountainous, with caves and cliffs, and can turn back on itself. Also, a new character is introduced, |, which can connect to any of its four corners.
Since an overline (‾) is not ASCII, you can use a ~ or - instead.
Your challenge is still to determine if it is connected by the lines of the characters. For example, the above can be traced like so:
To clarify the connections:
_can only connect on the bottom on either side‾(or~or-) can only connect on the top on either side/can only connect on the top right and bottom left\can only connect on the top left and bottom right|can connect on all four corners, but not to anything that connects to more than one corner.|must have a single connection above itself and a single connection below.
That one's a bit confusing, so the following are legal:
|
\
|
\
_
|_
‾|
/
And the following aren't:
|
‾
_
|
||
It doesn't matter where the connections start and end as long as they're all connected. Note that one line's bottom is the next line's top, so stuff like this is allowed:
_
‾
\
\
_
/
\
‾
You can assume input will only contain those characters plus spaces and newlines, and will contain at least one non-space character per column.
Input can be taken as ASCII art, an array of rows, a character matrix, etc.
TestcasesIs this continuous terrain? Part II
Separated by double newline.
Truthy:
\
\
\_
\ /\/\_
‾ \
/\
\/
\_
‾\
/‾\
__/ ‾\_
\_/‾\
\
/‾\ _ __
__/ _/ \‾
_/ __/‾\ |
/ / ‾\ |
\_/‾ \_/
/‾\
\ /
/ \
____ _
___| | |
| ___| |
| |___ |
|___ | |
___| | |
|_____| |
_
/ \ _
| |_|
_
|_\
Falsy:
/
\
//
‾‾
/ \
‾
_
\____/
/‾‾‾\
\_
/
| |
‾‾‾
|_|
| |