github.com/ader1990/go@v0.0.0-20140630135419-8c24447fa791/src/pkg/net/http/lex.go (about)

     1  // Copyright 2009 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package http
     6  
     7  // This file deals with lexical matters of HTTP
     8  
     9  var isTokenTable = [127]bool{
    10  	'!':  true,
    11  	'#':  true,
    12  	'$':  true,
    13  	'%':  true,
    14  	'&':  true,
    15  	'\'': true,
    16  	'*':  true,
    17  	'+':  true,
    18  	'-':  true,
    19  	'.':  true,
    20  	'0':  true,
    21  	'1':  true,
    22  	'2':  true,
    23  	'3':  true,
    24  	'4':  true,
    25  	'5':  true,
    26  	'6':  true,
    27  	'7':  true,
    28  	'8':  true,
    29  	'9':  true,
    30  	'A':  true,
    31  	'B':  true,
    32  	'C':  true,
    33  	'D':  true,
    34  	'E':  true,
    35  	'F':  true,
    36  	'G':  true,
    37  	'H':  true,
    38  	'I':  true,
    39  	'J':  true,
    40  	'K':  true,
    41  	'L':  true,
    42  	'M':  true,
    43  	'N':  true,
    44  	'O':  true,
    45  	'P':  true,
    46  	'Q':  true,
    47  	'R':  true,
    48  	'S':  true,
    49  	'T':  true,
    50  	'U':  true,
    51  	'W':  true,
    52  	'V':  true,
    53  	'X':  true,
    54  	'Y':  true,
    55  	'Z':  true,
    56  	'^':  true,
    57  	'_':  true,
    58  	'`':  true,
    59  	'a':  true,
    60  	'b':  true,
    61  	'c':  true,
    62  	'd':  true,
    63  	'e':  true,
    64  	'f':  true,
    65  	'g':  true,
    66  	'h':  true,
    67  	'i':  true,
    68  	'j':  true,
    69  	'k':  true,
    70  	'l':  true,
    71  	'm':  true,
    72  	'n':  true,
    73  	'o':  true,
    74  	'p':  true,
    75  	'q':  true,
    76  	'r':  true,
    77  	's':  true,
    78  	't':  true,
    79  	'u':  true,
    80  	'v':  true,
    81  	'w':  true,
    82  	'x':  true,
    83  	'y':  true,
    84  	'z':  true,
    85  	'|':  true,
    86  	'~':  true,
    87  }
    88  
    89  func isToken(r rune) bool {
    90  	i := int(r)
    91  	return i < len(isTokenTable) && isTokenTable[i]
    92  }
    93  
    94  func isNotToken(r rune) bool {
    95  	return !isToken(r)
    96  }