OBML (Opera Binary Markup Language) - Revision history

Grawity: fix URLs

2018-11-09T09:01:11Z

fix URLs

Jsummers at 21:01, 14 April 2016

2016-04-14T21:01:26Z

Grawity at 15:00, 30 January 2016

2016-01-30T15:00:33Z

Grawity at 13:56, 30 January 2016

2016-01-30T13:56:34Z

Grawity at 13:52, 30 January 2016

2016-01-30T13:52:59Z

Grawity at 13:50, 30 January 2016

2016-01-30T13:50:25Z

Grawity: Grawity moved page OBML to OBML (Opera Binary Markup Language): disambiguation

2016-01-30T13:49:44Z

Grawity moved page OBML to OBML (Opera Binary Markup Language): disambiguation

Grawity at 13:48, 30 January 2016

2016-01-30T13:48:15Z

Grawity: Created page with "{{FormatInfo |formattype=electronic |subcat=Markup |extensions={{ext|obml}}, {{ext|obml15}}, {{ext|obml16}} }} '''OBML''' (Opera Binary Markup Language) is a document format ..."

2016-01-30T13:47:29Z

Created page with "{{FormatInfo |formattype=electronic |subcat=Markup |extensions={{ext|obml}}, {{ext|obml15}}, {{ext|obml16}} }} '''OBML''' (Opera Binary Markup Language) is a document format ..."

New page

{{FormatInfo
|formattype=electronic
|subcat=Markup
|extensions={{ext|obml}}, {{ext|obml15}}, {{ext|obml16}}
}}

'''OBML''' (Opera Binary Markup Language) is a document format used by the Opera Mini "thin client" web browser. Opera Mini uses a server farm running a modified Presto engine to convert HTML pages into OBML, so that the phone only needs to render pixel-positioned regions instead of running a full HTML layout engine.

Normally OBML was only spoken between the Opera proxy servers and the app, but Opera Mini v3 gained the ability to save pages to ".obml" files for later reading and archival, thus it isn't a completely internal file format anymore.

Unfortunately the saved pages aren't very portable across devices (as they depend on screen size and font metrics); newer app versions do not support older OBML formats (app upgrades have made old saved pages unreadable at least twice); and neither Opera Mobile nor the desktop Opera can read them at all.

== Resources ==

One attempt at reverse-engineering the file format, based on my phone's backups:

* [https://gist.github.com/702b31cddcc5a6622724 format documentation]
* [https://github.com/grawity/hacks/blob/master/hacks/Text/obml-parser OBML to HTML converter]

[[Category:Web]]

@@ Line 19: / Line 19: @@
 * Dev.Opera: [https://dev.opera.com/articles/opera-binary-markup-language/ Opera Binary Markup Language]
 * [http://vishnyasoft.com/beta/1030-obml-viewer-v109.html OBML Viewer v1.0.9]
-* [https://gist.github.com/702b31cddcc5a6622724 reverse-engineered format documentation]
+* [https://nullroute.eu.org/redir/obml-format reverse-engineered format documentation]
-* [https://github.com/grawity/hacks/blob/master/hacks/Text/obml-parser OBML to HTML converter]
+* [https://nullroute.eu.org/redir/obml-parser OBML to HTML converter]
 [[Category:Markup]]
 [[Category:Web]]

@@ Line 18: / Line 18: @@
 * Dev.Opera: [https://dev.opera.com/articles/opera-binary-markup-language/ Opera Binary Markup Language]
-* [http://vishnyasoft.com/beta/1030-obml-viewer-v109.html OBML Viewer v1.0.9 (Russian)]
+* [http://vishnyasoft.com/beta/1030-obml-viewer-v109.html OBML Viewer v1.0.9]
+* [https://gist.github.com/702b31cddcc5a6622724 reverse-engineered format documentation]
-One attempt at reverse-engineering the file format, based on my phone's backups:
-−
 * [https://gist.github.com/702b31cddcc5a6622724 format documentation]
 * [https://github.com/grawity/hacks/blob/master/hacks/Text/obml-parser OBML to HTML converter]
 [[Category:Web]]

← Older revision		Revision as of 13:56, 30 January 2016
Line 18:		Line 18:

	* Dev.Opera: [https://dev.opera.com/articles/opera-binary-markup-language/ Opera Binary Markup Language]		* Dev.Opera: [https://dev.opera.com/articles/opera-binary-markup-language/ Opera Binary Markup Language]
		+	* [http://vishnyasoft.com/beta/1030-obml-viewer-v109.html OBML Viewer v1.0.9 (Russian)]

	One attempt at reverse-engineering the file format, based on my phone's backups:		One attempt at reverse-engineering the file format, based on my phone's backups:

← Older revision		Revision as of 13:52, 30 January 2016
Line 12:		Line 12:

	Unfortunately the saved pages aren't very portable across devices (as they depend on screen size and font metrics); newer app versions do not support older OBML formats (app upgrades have made old saved pages unreadable at least twice); and neither Opera Mobile nor the desktop Opera can read them at all.		Unfortunately the saved pages aren't very portable across devices (as they depend on screen size and font metrics); newer app versions do not support older OBML formats (app upgrades have made old saved pages unreadable at least twice); and neither Opera Mobile nor the desktop Opera can read them at all.
		+
		+	If you have old ".obml" files, one way to open them is by running a J2ME version of Opera Mini within MicroEmulator. With the <tt>--impl org.microemu.cldc.file.FileSystem</tt> option, Opera Mini will allow selecting a local directory for saved pages, and will import any compatible files found in it.

	== Resources ==		== Resources ==

← Older revision		Revision as of 13:48, 30 January 2016
Line 12:		Line 12:

	== Resources ==		== Resources ==
		+
		+	* Dev.Opera: [https://dev.opera.com/articles/opera-binary-markup-language/ Opera Binary Markup Language]

	One attempt at reverse-engineering the file format, based on my phone's backups:		One attempt at reverse-engineering the file format, based on my phone's backups:

@@ Line 1: / Line 1: @@
 {{FormatInfo
 |formattype=electronic
-|subcat=Markup
+|subcat=Hypermedia
 |extensions={{ext|obml}}, {{ext|obml15}}, {{ext|obml16}}
 }}
@@ Line 22: / Line 22: @@
 * [https://github.com/grawity/hacks/blob/master/hacks/Text/obml-parser OBML to HTML converter]
 [[Category:Web]]

@@ Line 4: / Line 4: @@
 |extensions={{ext|obml}}, {{ext|obml15}}, {{ext|obml16}}
 }}
 '''OBML''' (Opera Binary Markup Language) is a document format used by the Opera Mini "thin client" web browser. Opera Mini uses a server farm running a modified Presto engine to convert HTML pages into OBML, so that the phone only needs to render pixel-positioned regions instead of running a full HTML layout engine.