Last change
on this file since 1695 was
417,
checked in by julian.reschke@…, 14 years ago
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add core.abnf, add make targets for reformatted ABNF (related to #36)
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File size:
1.5 KB
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1 | ALPHA = %x41-5A / %x61-7A ; A-Z / a-z
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2 |
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3 | BIT = "0" / "1"
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4 |
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5 | CHAR = %x01-7F
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6 | ; any 7-bit US-ASCII character,
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7 | ; excluding NUL
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8 |
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9 | CR = %x0D
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10 | ; carriage return
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11 |
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12 | CRLF = CR LF
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13 | ; Internet standard newline
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14 |
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15 | CTL = %x00-1F / %x7F
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16 | ; controls
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17 |
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18 | DIGIT = %x30-39
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19 | ; 0-9
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20 |
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21 | DQUOTE = %x22
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22 | ; " (Double Quote)
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23 |
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24 | HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F"
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25 |
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26 | HTAB = %x09
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27 | ; horizontal tab
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28 |
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29 | LF = %x0A
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30 | ; linefeed
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31 |
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32 | LWSP = *(WSP / CRLF WSP)
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33 | ; Use of this linear-white-space rule
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34 | ; permits lines containing only white
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35 | ; space that are no longer legal in
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36 | ; mail headers and have caused
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37 | ; interoperability problems in other
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38 | ; contexts.
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39 | ; Do not use when defining mail
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40 | ; headers and use with caution in
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41 | ; other contexts.
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42 |
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43 | OCTET = %x00-FF
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44 | ; 8 bits of data
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45 |
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46 | SP = %x20
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47 |
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48 | VCHAR = %x21-7E
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49 | ; visible (printing) characters
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50 |
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51 | WSP = SP / HTAB
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52 | ; white space
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