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<?xml version="1.0" encoding="utf-8"?> <!-- -*- xml -*- -->
<xs:schema targetNamespace="uri:aprx:config"
xmlns:ax="uri:aprx:config"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:ht="uri:apache:config"
elementFormDefault="qualified">
<xs:annotation>
<xs:documentation>
The Aprx uses following configuration schema, which took its model very much
from how Apache HTTPD configuration is done.
To denote elements without < .. > around them as Apache does, we use
"uri:apache:config" style bits, like: <ht:element>
Because Apache's configuration predates XML and schemas, there has never been
proper XML-like schema for it or anything alike it, nor is this intended to be
validatable by XML tools.
The overall syntax is line oriented, along with \ -characters at the end of line
as continuation markers to append next line in place of that character plus the
end-of-line character(s).
Anywhere (except when previous line ends with \ -character) if the first non-white-space
character is '#' the whole line is comment, and is discarded.
Lines containing only white-space characters are also comments and are discarded.
Presence of non-quoted '#' at the tails of parameter lines should also behave as
comment, but it is not universal.
Presence of extra parameter values is not always flagged as an error.
</xs:documentation>
</xs:annotation>
<xs:complexType name="AprxConfig">
<xs:annotation>
<xs:documentation>
The overall Aprx config contains parameter groups, and one top-level
parameter label.
The "mycall" parameter label must be before anything else.
The <interface> and <aprsis> groups follow, and
the rest that use those interfaces then follow.
The <logging> group can be anywhere.
Each group can occur multiple times.
</xs:documentation>
</xs:annotation>
<xs:sequence>
<ht:element Name="mycall" type="ax:Ax25CallsignType" />
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element Name="aprsis" type="ax:AprsisGroupType" />
<xs:element Name="interface" type="ax:InterfaceGroupType" />
<xs:element Name="logging" type="ax:LoggingGroupType" />
</xs:choice>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<xs:element Name="telemetry" type="ax:TelemetryGroupType" />
<xs:element Name="digipeater" type="ax:DigipeaterGroupType" />
<xs:element Name="beacon" type="ax:BeaconGroupType" />
<xs:element Name="logging" type="ax:LoggingGroupType" />
</xs:choice>
</xs:sequence>
</xs:complexType>
<!--
Primitive data types
-->
<xs:complexType name="Interval">
<xs:annotation>
<xs:documentation>
The Aprx configuration has flexible time interval definitions.
A string of decimal numbers followed by multiplier character:
12 d 2 h 20 m 24 s
50 h 70 m 200 s
200 s 3 h
Whatever notation is easiest to understand for the use.
The multipliers are single characters and case insensitive.
Embedding white-space is permitted for readability.
("d" = days, "h" = hours, "m" = minutes, "s" = seconds)
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:string">
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="Ax25CallsignType">
<xs:annotation>
<xs:documentation>
This is ASCII representation of AX.25 callsign.
Up to 6 upper-case letters (A-Z) and digits (0-9), then
possibly a minus ('-') and decimal number 0 to 15.
By convention a "-0" is never used.
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:string">
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<xs:complexType name="AprsisCallsignType">
<xs:annotation>
<xs:documentation>
This is more relaxed form of AX.25 callsign:
Regular expression:
[a-zA-Z0-9]{1,6}($|-[a-zA-Z0-9]{1,2})
Or verbally:
Up to 6 alphanumeric characters + optional
tail of a minus ('-') followed by one or two
alphanumeric characters. Also lowercase letters
are allowed in alphanumerics.
</xs:documentation>
</xs:annotation>
<xs:simpleContent>
<xs:extension base="xs:string">
</xs:extension>
</xs:simpleContent>
</xs:complexType>
<!--
Group types
-->
<xs:complexType name="AprsisGroupType">
<xs:annotation>
<xs:documentation>
The APRSIS group defines communication parameters to APRS-IS network.
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<ht:element Name="login" type="ax:AprsisCallsignType">
<xs:annotation>
<xs:documentation>
The Login parameter for APRS-IS network.
The Aprx will calculate correct authentication parameter
for that login value.
</xs:documentation>
</xs:annotation>
</ht:element>
<ht:element Name="server" type="ax:AprsisServerParameterType">
<xs:annotation>
<xs:documentation>
Defines server to which the Aprx connects for the APRS-IS
service.
serverhost [portnum]
Chosen servers should be regional round-robin ones, see
http://www.aprs2.net/
noam.aprs2.net
soam.aprs2.net
euro.aprs2.net
asia.aprs2.net
aunz.aprs2.net
or the global pool:
rotate.aprs2.net
You SHOULD NOT connect to any specific one, as none of
the servers are behind a load-balancing fail-over mechanisms.
</xs:documentation>
</xs:annotation>
</ht:element>
<ht:element Name="heartbeat-timeout" type="ax:IntervalType">
<!-- default value: 120 second -->
</ht:element>
<ht:element Name="filter" type="ax:AprsisFilterParameterType">
<xs:annotation>
<xs:documentation>
One white-space terminated parameter that is fed to APRS-IS
server immediately after a login.
If multiple filters are needed, they are defined with
successive 'filter' parameter entries.
</xs:documentation>
</xs:annotation>
</ht:element>
</xs:choice>
</xs:sequence>
</xs:complexType>
<xs:complexType name="InterfaceGroupType">
<xs:annotation>
<xs:documentation>
</xs:documentation>
</xs:annotation>
</xs:complexType>
<xs:complexType name="TelemetryGroupType">
<xs:annotation>
<xs:documentation>
</xs:documentation>
</xs:annotation>
</xs:complexType>
<xs:complexType name="DigipeaterGroupType">
<xs:annotation>
<xs:documentation>
</xs:documentation>
</xs:annotation>
</xs:complexType>
<xs:complexType name="BeaconGroupType">
<xs:annotation>
<xs:documentation>
</xs:documentation>
</xs:annotation>
</xs:complexType>
<xs:complexType name="LoggingGroupType">
<xs:annotation>
<xs:documentation>
The Logging group defines how the Aprx does logs.
Without it, or any parameters inside it, no logging happens.
</xs:documentation>
</xs:annotation>
<xs:sequence>
<xs:choice minOccurs="0" maxOccurs="unbounded">
<ht:element Name="aprxlog" type="ax:filename">
</ht:element>
<ht:element Name="dprslog" type="ax:filename">
</ht:element>
<ht:element Name="rflog" type="ax:filename">
</ht:element>
<ht:element Name="pidfile" type="ax:filename">
</ht:element>
<ht:element Name="erlangfile" type="ax:filename">
</ht:element>
<ht:element Name="erlang-loglevel" type="ax:???">
</ht:element>
<ht:element Name="erlanglog" type="ax:???">
</ht:element>
<ht:element Name="erlang-log1min" type="ax:???">
</ht:element>
</xs:choice>
</xs:sequence>
</xs:complexType>
<!--
<xs:annotation>
<xs:documentation>
</xs:documentation>
</xs:annotation>
-->
</xs:schema>
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