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diff --git a/static/freebsd/man5/pbm.5 3.html b/static/freebsd/man5/pbm.5 3.html new file mode 100644 index 00000000..25d01fce --- /dev/null +++ b/static/freebsd/man5/pbm.5 3.html @@ -0,0 +1,78 @@ +<table class="head"> + <tr> + <td class="head-ltitle">PBM(5)</td> + <td class="head-vol">File Formats Manual</td> + <td class="head-rtitle">PBM(5)</td> + </tr> +</table> +<div class="manual-text"> +<section class="Sh"> +<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> +<p class="Pp"><code class="Nm">pbm</code> — <span class="Nd">portable + bitmap file format</span></p> +</section> +<section class="Sh"> +<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> +<p class="Pp">The portable bitmap format is a lowest common denominator + monochrome file format. It was originally designed to make it reasonable to + mail bitmaps between different types of machines using the typical stupid + network mailers we have today. Now it serves as the common language of a + large family of bitmap conversion filters. The definition is as follows:</p> +<p class="Pp"></p> +<ul class="Bl-bullet Bl-compact"> + <li>A "magic number" for identifying the file type. A pbm file's + magic number is the two characters "P1".</li> + <li>Whitespace (blanks, TABs, CRs, LFs).</li> + <li>A width, formatted as ASCII characters in decimal.</li> + <li>Whitespace.</li> + <li>A height, again in ASCII decimal.</li> + <li>Whitespace.</li> + <li>Width * height bits, each either '1' or '0', starting at the top-left + corner of the bitmap, proceeding in normal English reading order.</li> + <li>The character '1' means black, '0' means white.</li> + <li>Whitespace in the bits section is ignored.</li> + <li>Characters from a "#" to the next end-of-line are ignored + (comments).</li> + <li>No line should be longer than 70 characters.</li> +</ul> +<p class="Pp">Here is an example of a small bitmap in this format:</p> +<div class="Bd Pp Li"> +<pre>P1 +# feep.pbm +24 7 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 +0 1 1 1 1 0 0 1 1 1 1 0 0 1 1 1 1 0 0 1 1 1 1 0 +0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 1 0 +0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 0 0 0 1 1 1 1 0 +0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 +0 1 0 0 0 0 0 1 1 1 1 0 0 1 1 1 1 0 0 1 0 0 0 0 +0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0</pre> +</div> +<p class="Pp">Programs that read this format should be as lenient as possible, + accepting anything that looks remotely like a bitmap.</p> +<p class="Pp">There is also a variant on the format, available by setting the + RAWBITS option at compile time. This variant is different in the following + ways:</p> +<p class="Pp"></p> +<ul class="Bl-bullet Bl-compact"> + <li>The "magic number" is "P4" instead of + "P1".</li> + <li>The bits are stored eight per byte, high bit first low bit last.</li> + <li>No whitespace is allowed in the bits section, and only a single character + of whitespace (typically a newline) is allowed after the height.</li> + <li>The files are eight times smaller and many times faster to read and + write.</li> +</ul> +</section> +<section class="Sh"> +<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> +<p class="Pp">Copyright (C) 1989, 1991 by <span class="An">Jef + Poskanzer</span>.</p> +</section> +</div> +<table class="foot"> + <tr> + <td class="foot-date">September 27, 1991</td> + <td class="foot-os">FreeBSD 15.0</td> + </tr> +</table> |