Advance input by increment
number of characters
Advance input by one character
Peek length
characters ahead.
Peek length
characters ahead. Does not check for EOF.
string from current offset upto current offset + length
Peek at the current input.
Peek at the current input. Does not check for EOF.
Equivalent to input(str.length) == str
.
Equivalent to input(str.length) == str
. Does not check for EOF.
Backtrack by decrement
numner of characters
Backtrack to a known offset
Reset the input to have the given contents