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PIEBALDconsult28-Jul-21 9:33

PIEBALDconsult

28-Jul-21 9:33

Punt.

honey the codewitch28-Jul-21 9:37

28-Jul-21 9:37

I would but it's kind of critical to what I'm doing right now, because how far I read through the document directly corresponds to what can fit on the screen vertically, and that depends on what fits horizontally.

I mean, I guess I can kind of punt this one case if that's what you mean, but it's one of those situations where not making a decision is itself making a decision.

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PIEBALDconsult28-Jul-21 10:47

PIEBALDconsult

28-Jul-21 10:47

Splitting on syllables is so last century. We don't do that anymore. Big Grin | :-D

Personally, I would split the line before the long word, and if it still doesn't fit, I'd chop the word simply based on the number of characters and call it good. The reader will understand.

How to Split Long Strings into Manageable Portions and Display them in a MessageBox[^]

honey the codewitch28-Jul-21 11:11

28-Jul-21 11:11

So you'd just split, like in the middle of the word, or at least, as far as the text goes on the screen and then wrap to the next line? I suppose that makes sense.

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PIEBALDconsult28-Jul-21 12:03

PIEBALDconsult

28-Jul-21 12:03

--------------------
Well, I'd split on a
space if possible,
but that isn't
always possible,
particularly with
"supercalifragilisti
cexpialidocious",
which exceeds the
line length all on
its own.
--------------------

dandy7229-Jul-21 5:51

dandy72

29-Jul-21 5:51

That seems very reasonable to me.

As a reader, frankly I could do without a hyphenation character being introduced.

As a developer, I'd see that and think to myself, "you know what - I couldn't have done better".

Win-win. I think you have your solution.

SeattleC++29-Jul-21 8:44

SeattleC++

29-Jul-21 8:44

Clip it. That will punish content creators for using words like supercalifragilisticexpialidocious, and they will stop doing that.

obermd28-Jul-21 9:41

obermd

28-Jul-21 9:41

See if you can find a lightweight dictionary that shows syllables so you can pick a syllable to hyphenate and wrap.

honey the codewitch28-Jul-21 10:25

28-Jul-21 10:25

I just don't have the space for it, and I can't count on being online. Frown | :(

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Eddy Vluggen28-Jul-21 9:46

Eddy Vluggen

28-Jul-21 9:46

honey the codewitch wrote:
What would you do?

I'd not wrap at all. Cost-wise the most efficient choice.

Bastard Programmer from Hell Suspicious | :suss:

"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.

honey the codewitch28-Jul-21 10:24

28-Jul-21 10:24

So like, the edges of the word extend of the sides of the page? I'm not sure I can get away with that, since it's for an e-reader, although I wonder if they wouldn't put invisible unicode syllable breaks in long words. I wouldn't want want count on it. Hmmmm.

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Gerry Schmitz28-Jul-21 10:11

Gerry Schmitz

28-Jul-21 10:11

Supercalifrag...

It was only in wine that he laid down no limit for himself, but he did not allow himself to be confused by it.
― Confucian Analects: Rules of Confucius about his food

honey the codewitch28-Jul-21 10:23

28-Jul-21 10:23

It's for a e-reader for reading books. I can't do that. Frown | :(

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Gerry Schmitz28-Jul-21 11:30

Gerry Schmitz

28-Jul-21 11:30

Start a dictionary ... you already have a word. I have spelling tables with up to 70,000 entries; you can manage one word?

Poke tongue | ;-P

It was only in wine that he laid down no limit for himself, but he did not allow himself to be confused by it.
― Confucian Analects: Rules of Confucius about his food

honey the codewitch28-Jul-21 11:34

28-Jul-21 11:34

I don't have the space for a dictionary. I just don't. I'm sweating 30kB here 30kB there for my state tables, and then I have 250kB for my default fonts, which i actually have zipped, and then embedded the compressed result into my code as a C array.

But I don't have room left over for much.

Edit: I think I'm just going to hard wrap

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Member 1330167928-Jul-21 23:23

28-Jul-21 23:23

Disregard my pevious answer - that's for HTML only.

If it's for an e-reader you have bigger problems: use a library to do this because there are multiple things involved in flowing text. If you've never used LaTeX you are probably not familiar with all the complexities involved:

1. Font kerning: changes the width of a line.
2. Inter-word spacing: algorithm must ensure no rivers run through paragraphs and edges line up.
3. Paragraph indentation: in literary prose all paragraphs have an indentation.
4. Long word wrapping: You need to use a table of pre-calculated breakpoints that are specific to a glyph.
5. Language: Some languages read right-to-left, and these may be in the middle of a sentence in a language which reads left-to-right.

If you're implementing an E-reader then you need to know all of the following concepts:

1. Kerning
2. Ligatures
3. Unicode code-points
4. Unicode BMP
5. Unicode surrogates
6. Unicode characters
7. Unicode glyphs
8. Rivers/runs in text
9. Struts and rules in text
10. Baselines, Caplines
11. Ascenders, descenders
12. Subpixels
...

and probably a hundred other typesetting things I forgot or don't know about. Flowing text for an E-reader (or PDF, or book or any typesetting) is an entire Phd topic on its own and can take years of work to implement.

It does help if you've used LaTeX in the past, because it chooses good defaults for all of the above, and if you want to change anything you're forced to learn what all those things mean.

honey the codewitch29-Jul-21 1:05

29-Jul-21 1:05

Find me a library for this that works on the Arduino framework.

1. Done
2. Not
3. Done
4. Not
5. Done
6. Done
7. Done (although i think you mean ttf/otf glyphs
8. Not
9. Not
10.Done
11.I don't know what that is
12. If you mean fractional pixels or anti-aliasing, done

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Member 1330167929-Jul-21 1:40

29-Jul-21 1:40

Quote:
Find me a library for this that works on the Arduino framework.

Maybe you should tell your client that the project they contracted you for is not completely realisable on their choice of hardware. Sure, you can get part of the way there on an atmega platform but it may not match their expectations.

Or maybe get them to scale their requirements down to exclude extended unicode characters and exclude any sort of typesetting rules; just render text instead of typesetting it.

Most (if not all) times my clients let me choose the hardware anyway (they set price restrictions and I tell them what is capable at that price) so it shouldn't really be a problem having this discussion with your client.

honey the codewitch29-Jul-21 1:56

29-Jul-21 1:56

I could tell my client that but it's not true, and I wouldn't believe myself (I'm the client) anyway.

I've got unicode, i'm working on the typesetting. It's not that the device isn't capable - I think I've written enough of the code to prove that the ESP32 can do it. It's just that I don't know the behaviors of all of it - not that I'm trying to implement all of it - just enough to show most epubs mostly correctly.

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Member 1330167929-Jul-21 2:49

29-Jul-21 2:49

Quote:
I could tell my client that but it's not true,

You appaer to be in agreement with this statement of mine:

Quote:
Sure, you can get part of the way there on an atmega platform

So, yeah, that's completely true and factual - you can definitely get part of the way there! I'm guessing that the easiest bits can be done (inter-word spacing and hyphenation at syllable boundaries), but anything else you add in is going to result in a ragged right-edge.

If you are okay with a ragged right edge, then it all becomes doable on an ESP32 (that's like what, 80KB RAM?)

honey the codewitch29-Jul-21 5:41

29-Jul-21 5:41

Adding, you didn't mention an atmega before so I'm not sure what you're quoting. In any case I didn't agree or disagree with that statement because you didn't make it.

This is what I responding to:

Maybe you should tell your client that the project they contracted you for is not completely realisable on their choice of hardware.

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Member 1330167929-Jul-21 6:39

29-Jul-21 6:39

Quote:
Adding, you didn't mention an atmega before so I'm not sure what you're quoting.

I'm quoting this post over here, which as you can see contains the sentence you missed:
The Lounge[^]

Quote:
This is what I responding to:

Maybe you should tell your client that the project they contracted you for is not completely realisable on their choice of hardware.

Seems you're in agreement with that too, since you say:

Quote:
not that I'm trying to implement all of it - just enough to show most epubs mostly correctly.

That's what "not completely realisable" means.

honey the codewitch29-Jul-21 7:06

29-Jul-21 7:06

First of all, you never mentioned the atmega in that post. I just looked at the link you gave me. I didn't miss a sentence. What was being discussed was the Arduino framework. It is only incidently related to an atmega in that an atmega will run it. It's not the only thing that does.

Member 13301679 wrote:
That's what "not completely realisable" means.

It's what this means

Member 13301679 wrote:
Maybe you should tell your client that the project they contracted you for is not completely realisable

I bolded the relevant bits. You forgot the operative part. I was never contracted to build a 100% to spec e-reader.

Real programmers use butterflies

Member 1330167929-Jul-21 7:20