Emphasis Line and Emphasis Dot

mcortez · 01-18-2008, 03:08 PM

I'm working on a little pet project of mine, that involves decoding/encoding LRS files -- and I was curious -- what exactly are Emphasis Lines and Emphasis Dots, and how would I go about making an LRF file with say, html2lrf that includes/displays examples of them?

I see that Emphasis Line can be of type None, Solid, Dotted, Dashed or Doubled...

Any hints would be appreciated.

Thanks!

NatCh · 01-18-2008, 05:43 PM

I'm guessing here, but emphasis line might be underlining? No guesses for emphasis dot.

That's really cryptic. I assume this is how they refer to these things inside the LRS formatting?

mcortez · 01-18-2008, 06:19 PM

I'm getting this naming convention from the BBeBXylog (LRS) specification:

http://www.y-adagio.com/public/commi...0_1017e_DC.pdf

As well as from some previous work that had been done with reverse engineering the LRF format:

http://www.sven.de/librie/Librie/LrfTag

kovidgoyal also uses the these terms in his code -- but for some reason, Python and I just don't grok each other and his libprs code base hasn't revealed to me what exactly they are and how to produce them.

If my pet project works out, I'll have a set of tools for going from LRF to LRS (XML) and LRS to LRF. The work I'm doing is in C#, and currently successfully decompiles very simple documents from LRF to LRS. This will let me then use XSLT to transform various XML stuff that I have to LRS, then to LRF, with a very high degree of control on the final formatting.

igorsk · 01-18-2008, 07:19 PM

Do you have the LRS spec? It's somewhat more verbose than lrf2lrs

Those two are mostly Japanese (East Asian) typography. As italic or bold do not work too well in Japanese, the emphasis is done by either an underline or round dots placed under each character (or on the left in vertical writing) .
I beleive PRS renders Emphasis Line as underline in non-Japanese texts.

kovidgoyal · 01-19-2008, 02:39 AM

Yeah EmpLine is underline/overline can be controlled in html2lrf with the text-underline CSS property. See https://libprs500.kovidgoyal.net/dow.../html-demo.zip for a demo of it. Incidentally there are implementations of both lrf2lrs and lrs2lrf in libprs500 svn

mcortez · 01-19-2008, 06:09 PM

I did notice that you had some LRS/LRF things in your SVN. What exactly is the state of those tools? When I'd previously asked about LRS compiling to LRF, you indicated there weren't any tools that currently worked:

https://www.mobileread.com/forums/showthread.php?t=16663

Or was the problem more specifically with the LRS output from html2lrf using the --lrs option???

I'm also working on this in C# because for some reason, I just never seem to be able to grok Python. I'm able to handle C/C++, Java, Perl, PHP, C#, CFML and a half dozen other languages, but most projects written in Python just give me heartburn and I have a hard time following through other people's Python code... <shrug>

kovidgoyal · 01-19-2008, 07:19 PM

Yeah lrs2lrf is a new addition

thanks to Roger Critchlow
Feel free to write your own tools, though LRS to LRF is almost done, there are a couple of bugs left to iron out, is all.

LRF to LRS is done, and has been stable for a while.

01-18-2008, 03:08 PM	#1
mcortez Junior Member Posts: 9 Karma: 10 Join Date: Nov 2007 Location: Brea, CA Device: PRS-505	Emphasis Line and Emphasis Dot I'm working on a little pet project of mine, that involves decoding/encoding LRS files -- and I was curious -- what exactly are Emphasis Lines and Emphasis Dots, and how would I go about making an LRF file with say, html2lrf that includes/displays examples of them? I see that Emphasis Line can be of type None, Solid, Dotted, Dashed or Doubled... Any hints would be appreciated. Thanks!

01-19-2008, 07:19 PM	#7
kovidgoyal creator of calibre Posts: 43,839 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Yeah lrs2lrf is a new addition thanks to Roger Critchlow Feel free to write your own tools, though LRS to LRF is almost done, there are a couple of bugs left to iron out, is all. LRF to LRS is done, and has been stable for a while. Last edited by kovidgoyal; 01-19-2008 at 07:22 PM.

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01-18-2008, 05:43 PM	#2
NatCh Gizmologist Posts: 11,615 Karma: 929550 Join Date: Jan 2006 Location: Republic of Texas Embassy at Jackson, TN Device: Pocketbook Touch HD3	I'm guessing here, but emphasis line might be underlining? No guesses for emphasis dot. That's really cryptic. I assume this is how they refer to these things inside the LRS formatting?

01-18-2008, 06:19 PM	#3
mcortez Junior Member Posts: 9 Karma: 10 Join Date: Nov 2007 Location: Brea, CA Device: PRS-505	I'm getting this naming convention from the BBeBXylog (LRS) specification: http://www.y-adagio.com/public/commi...0_1017e_DC.pdf As well as from some previous work that had been done with reverse engineering the LRF format: http://www.sven.de/librie/Librie/LrfTag kovidgoyal also uses the these terms in his code -- but for some reason, Python and I just don't grok each other and his libprs code base hasn't revealed to me what exactly they are and how to produce them. If my pet project works out, I'll have a set of tools for going from LRF to LRS (XML) and LRS to LRF. The work I'm doing is in C#, and currently successfully decompiles very simple documents from LRF to LRS. This will let me then use XSLT to transform various XML stuff that I have to LRS, then to LRF, with a very high degree of control on the final formatting.

01-18-2008, 07:19 PM	#4
igorsk Wizard Posts: 3,442 Karma: 300001 Join Date: Sep 2006 Location: Belgium Device: PRS-500/505/700, Kindle, Cybook Gen3, Words Gear	Do you have the LRS spec? It's somewhat more verbose than lrf2lrs Those two are mostly Japanese (East Asian) typography. As italic or bold do not work too well in Japanese, the emphasis is done by either an underline or round dots placed under each character (or on the left in vertical writing) . I beleive PRS renders Emphasis Line as underline in non-Japanese texts.

01-19-2008, 02:39 AM	#5
kovidgoyal creator of calibre Posts: 43,839 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Yeah EmpLine is underline/overline can be controlled in html2lrf with the text-underline CSS property. See https://libprs500.kovidgoyal.net/dow.../html-demo.zip for a demo of it. Incidentally there are implementations of both lrf2lrs and lrs2lrf in libprs500 svn

01-19-2008, 06:09 PM	#6
mcortez Junior Member Posts: 9 Karma: 10 Join Date: Nov 2007 Location: Brea, CA Device: PRS-505	I did notice that you had some LRS/LRF things in your SVN. What exactly is the state of those tools? When I'd previously asked about LRS compiling to LRF, you indicated there weren't any tools that currently worked: https://www.mobileread.com/forums/showthread.php?t=16663 Or was the problem more specifically with the LRS output from html2lrf using the --lrs option??? I'm also working on this in C# because for some reason, I just never seem to be able to grok Python. I'm able to handle C/C++, Java, Perl, PHP, C#, CFML and a half dozen other languages, but most projects written in Python just give me heartburn and I have a hard time following through other people's Python code... <shrug>

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