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- <span class="hljs-comment">; line comment</span>
- <span class="hljs-attribute">ruleset</span> = [optional] *(group1 / group2 / <span class="hljs-keyword">SP</span>) <span class="hljs-keyword">CRLF</span> <span class="hljs-comment">; trailing comment</span>
- <span class="hljs-attribute">group1</span> = alt1
- <span class="hljs-attribute">group1</span> =/ alt2
- <span class="hljs-attribute">alt1</span> = <span class="hljs-symbol">%x41-4D</span> / <span class="hljs-symbol">%d78-90</span>
- <span class="hljs-attribute">alt2</span> = <span class="hljs-symbol">%b00100001</span>
- <span class="hljs-attribute">group2</span> = *<span class="hljs-number">1</span><span class="hljs-keyword">DIGIT</span> / <span class="hljs-number">2</span>*<span class="hljs-keyword">HEXDIG</span> / <span class="hljs-number">3</span>*<span class="hljs-number">4</span><span class="hljs-keyword">OCTET</span>
- a
- <span class="hljs-attribute">optional</span> = hex-codes
- / literal
- / sensitive
- / insensitive
- <span class="hljs-attribute">hex-codes</span> = <span class="hljs-symbol">%x68.65.6C.6C.6F</span>
- <span class="hljs-attribute">literal</span> = <span class="hljs-string">"string literal"</span>
- <span class="hljs-attribute">sensitive</span> = <span class="hljs-symbol">%s</span><span class="hljs-string">"case-sensitive string"</span>
- <span class="hljs-attribute">insensitive</span> = <span class="hljs-symbol">%i</span><span class="hljs-string">"case-insensitive string"</span>
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