s="ruby-comment">#each_byte(&amp;block)</span>
<span class="ruby-comment">#readbyte</span>
<span class="ruby-comment">#ungetbyte(byte)</span>

<span class="ruby-comment">#getc</span>
<span class="ruby-comment">#readchar</span>
<span class="ruby-comment">#each_char(&amp;block)</span>
<span class="ruby-comment">#ungetc(char)</span>

<span class="ruby-comment">#lineno</span>
<span class="ruby-comment">#lineno=</span>
<span class="ruby-comment">#gets(separator = $OUTPUT_RECORD_SEPARATOR, limit = nil)</span>
<sp