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I'm taking a course on lexical analysis, and \t\v\r is used in the lexer token definitions to represent white spaces. What are \v and \r exactly??
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Space, tab, line feed (newline), carriage return, form feed, and vertical tab characters are called "white-space characters" because they serve the same purpose as the spaces between words and lines on a printed page — they make reading easier.
The ASCII code for a blank space is the decimal number 32, or the binary number 0010 00002.
noun. the unprinted area of a piece of printing, as of a poster or newspaper page, or of a portion of a piece of printing, as of an advertisement; blank space. White space is as effective in a layout as type.
\t is a horizontal tab, \v is a vertical tab and \r is a carriage return.
They are certainly a sub-set of white space characters.
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