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Add section about utility functions in filters

This commit is contained in:
Pavel Machek 2000-05-25 15:11:13 +00:00
parent 4a5bb2bf1b
commit 69477cad70

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@ -54,7 +54,8 @@ configuration primitives, <cf> is fragment of configuration within normal
<p>Bird is configured using text configuration file. At startup, bird
reads <file/bird.conf/ (unless -c command line parameter is
given). Everything on a line after <cf/#/ is a comment, whitespace is
ignored. If there's variable number of options, it is grouped using
ignored, C-style comments <cf>/* comment */</cf> are also
recognized. If there's variable number of options, it is grouped using
<cf/{ }/ brackets. Each option is terminated by <cf/;/.
<p>Really simple configuration file might look like this, you can find
@ -328,21 +329,33 @@ if 1234 = i then printn "."; else { print "*** FAIL: if 1 else"; }
<tag>defined( <m>attribute</m> )</tag>
returns TRUE if given attribute is defined. Access to undefined attribute results in runtime error.
<tag/prefix network/
<tag/<m/prefix/ network/
network this route is talking about.
<tag/ip from/
<tag/<m/ip/ from/
who told me about this route.
<tag/ip gw/
<tag/<m/ip/ gw/
what is nexthop packets routed using this route should be forwarded to.
<tag/enum source/
<tag/<m/enum/ source/
what protocol told me about this route. This can have values such as <cf/RTS_RIP/ or <cf/RTS_OSPF_EXT/.
</descrip>
<p>Plus, there are protocol-specific attributes, which are described in protocol sections.
<sect1>Utility functions
<p>There are few functions you might find convient to use:
<descrip>
<tag>print <m/expr/ [ <m/, expr .../ ]</tag>
prints given expressions, usefull mainly while debugging filters.
<tag>quitbird</tag>
terminates bird. Usefull while debugging filter interpretter.
</descrip>
<sect>Protocols
<sect1>Rip
@ -426,8 +439,15 @@ protocol rip MyRIP_test {
}
</code>
<sect>Getting more help
<p>This is really last section of this file, should give pointers to
programmers documentation, web pages mailing lists and similar stuff.
</article>
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