o iz@sPdZdedefddZdedefddZdedefdd Zdedefd d Zd S) z6 Tools for pedantically processing the HTTP protocol. breturncC |D] }|dvr dSq|dkS)z; Is the string a token per RFC 9110 section 5.6.2? sMABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!#$%&'*+-.^_`|~FNrcrrWC:\Users\psant\Downloads\PAF backend\school\venv\Lib\site-packages\twisted/web/_abnf.py_istoken sr datacCs(|d}|std|t|S)a( Parse a decimal integer of the form C{1*DIGIT}, i.e. consisting only of decimal digits. The integer may be embedded in whitespace (space and horizontal tab). This differs from the built-in L{int()} function by disallowing a leading C{+} character and various forms of whitespace (note that we sanitize linear whitespace in header values in L{twisted.web.http_headers.Headers}). @param data: Value to parse. @returns: A non-negative integer. @raises ValueError: When I{value} contains non-decimal characters. s z#Value contains non-decimal digits: N)stripisdigit ValueErrorint)r rrr_decints rcCr)z Is the string case-insensitively hexidecimal? It must be composed of one or more characters in the ranges a-f, A-F and 0-9. s0123456789abcdefABCDEFFrNrrrrr _ishexdigits-s rcCst|st|t|dS)z Decode a hexadecimal integer. Unlike L{int(b, 16)}, this raises L{ValueError} when the integer has a prefix like C{b'0x'}, C{b'+'}, or C{b'-'}, which is desirable when parsing network protocols. N)rr r)rrrr_hexint:s rN)__doc__bytesboolr rrrrrrrrs