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<?xml version="1.0" encoding="utf-8"?>
<!--
Browser data from http://www.seehowitruns.org/
The purpose of this file is to describe, in the shortest possible way,
the browsers that have support for JavaScript. Since it is not
possible to determine in 100% if a visiting browser has support for
JavaScript we are left with our best guess based on the User-Agent
header contents. Note that the header may, of course, be faked and
completely bogus - thus we do not have to go out of our way in order
to be 100% correct and accurate.
The important thing to remember about this file before adding any
entries to it is that it serves the purpose of finding BROWSERS that
DO support JavaScript and not blocking bots etc. that do NOT support
JavaScript.
The file should be kept as short as possible, because that way the
matching we need to do at the beginning of every request will be fast
(the entries contained below define 99% of the cases and the generated
code is able to match nearly 90000 lines of unique browser strings in
under 0.015s).
The syntax is simple:
1. Two tags are supported: group and except
1a. The <group> tag
The tag takes several attributes:
- positions
Specifies a section of the User-Agent string which should be
probed for match. Syntax:
X[-Y][,X[-Y]] ...
where both X and Y are digits. Positions are _zero based_
(i.e. the first character of the User-Agent string is at position
0). Several position ranges can be specified, they must be
separated with a comma.
Generated code checks the U-A string only at the specified
positions.
- scanfrom
Specifies an index in the User-Agent string from which the code
should scan for the value specified in the 'match' attribute.
Generated code scans the U-A string from this position, moving one
position ahead with each iteration and trying to match the
specified value starting from each position.
NOTE: 'positions' and 'scanfrom' cannot be specified together and one
of them must be specified in order for the compiler to process the
definition correctly.
- skip
Specifies the number of initial positions to skip when 'scanfrom'
is used. It is a bit superfluous, as it would be possible to
specify 'scanfrom' taking the offset into account, but the idea is
that the definition editor can see the whole context when given
the "absolute start" and the offset while looking at the agent
string.
- match
Specifies the string to look for in the U-A header. Used with both
'scanfrom' and 'positions' attributes. The difference is that with
'positions' match *MUST* contain the same number of of parts as
the 'position' attribute (also separated by commas). Also in the
'positions' case, match parts must be equal in length to the
specified 'positions' ranges.
This attribute is always required.
- javascript
Specifies the default return value of the group. Defaults to
'false'.
1b. The 'except' tag
Defines an exception to the default return value of the group it is
defined in. The attributes are the same what in the 'group' tag
above. When a match is made on the 'except' clause, the return value
is reverse to the group default.
Exceptions are rendered _before_ the subgroups.
2. Overall syntax
The 'group' container tags can be nested to any depth and can
also contain the 'except' tags.
The 'except' tags can be specified only within a group.
Unknown tags are silently ignored.
-->
<uplevel>
<group positions="0-3" match="Mozi">
<!-- Mozilla and compatibles -->
<group positions="7-10" match="/4.0" javascript="true">
<!-- MSIE, Netscape 4.0, Opera -->
<except positions="13-28" match="ActiveTouristBot"/>
</group>
<!-- IE9 or newer -->
<group positions="7-10" match="/5.0" javascript="true">
<!-- MSIE 10, MSIE 11 -->
<except positions="13-28" match="ActiveTouristBot"/>
</group>
<group scanfrom="12" skip="4" match=") Gecko/" javascript="true">
<!-- All the Gecko-based browsers -->
</group>
<group scanfrom="12" skip="4" match=") Opera" javascript="true">
<!-- Opera -->
</group>
<group positions="12-15" match="(Mac" javascript="true">
<!-- Safari -->
</group>
<group scanfrom="12" skip="2" match="(KHTML" javascript="true">
<!-- Safari -->
</group>
<group positions="12-15" match="Gale" javascript="true">
<!-- Galeon < 2.0 -->
</group>
<group positions="25-28" match="Konq" javascript="true">
<!-- Konqueror -->
</group>
<group positions="9-11,12" match="/4.,[" javascript="true">
<!-- Netscape 4.x -->
</group>
</group>
<group positions="0-3" match="Konq" javascript="true">
<!-- Konqueror -->
</group>
<group positions="0-3" match="Oper" javascript="true">
<!-- Opera -->
</group>
</uplevel>
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