Fix/escaped char transpilation

[am-cid]

escaped char transpilation is simpler now

• \, ", n, t, r, b, and f are not escaped in lexer. python will handle the escaping in execution
• | however is escaped in lexer

"\\\"\n\t\r\b\f" --> "\\\"\n\t\r\b\f" (python will handle escaping this during execution)
"\|" --> | (we escape this in lexer)

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test log

source

sample text file
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1 |
2 | fwunc mainuwu-san() [[
3 |     a-chan = 1~
4 |     pwint("abs {\\\"one\\\"}:<newline>\n<tab>\t \|| a|\|")~
5 |     pwint("\n")~
6 |     pwint("abs \\\"one\\\":<newline>\n<tab>\t<back>\b<return>\r<feed>\f\|\|")~
7 | ]]
8 |
9 |
10 |
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end of file

transpiled

output