hyphenation | A port of TeX 's hyphenation algorithm to Go

I'm working on a couple of latex templates that belong together (letter, article, report). I've achieved nearly all my objectives except for a single one, having the font size change using the \documentclass[.pt]{} command, whether I use 9pt or 12pt my document looks the same. How do I ensure that this works correctly for my custom class?

Just some sidenotes, I use XeLaTex to compile my documents while I install the fonts (DejaVu familiy) with the fontspec package and the \setromanfont{DejaVu Serif} command. The classes have the option to switch between the serif and the sans-serif font in the family.

Here is my minimal working example: Consisting of the letter.tex file.

I'm trying to replicate a report using RMarkdown/LaTeX. Is it possible to add a letterhead to the top of a page in a similar way to the image I've attached? Hoping to find a solution where I can have a letterhead with a logo in it (and where I can easily customise the text and color of the letterhead too).

TIA

I'm using the standard article document class. Here is my YAML in RMarkdown

How can I add hyphenation to a SwiftUI Text? Currently SwiftUI makes a paragraph when there is no space, but this makes everything hard to read and messy.

I have done a bit of research and it seems that there is no native method. Is there another way to achieve this?

I'm having a problem compiling a simple Rmarkdown file, and I'm clueless about the solutions. Here is the problem:

It's a simple document without R code, just text. In the header: title, author, date and output: pdf_document.

I installed the packages rmarkdown and tinytex with install.packages("tidyverse"). TinyTex (distribution) was installed like that: tinytex::install_tinytex().

I format my manuscripts in MS Word for publication. I want to format the first paragraph of each chapter.

The following requires me to go to each first paragraph and select the words I want to turn into 'small caps'

I’m working on a bringing several large books into a InDesign, that were previously sent in LaTeX. One requirement is that I migrate the hyphenation list/dictionary (close to 1000 words) into InDesign. I know I can manually place a discretionary hyphen when a word breaks where I don’t want it to, or insert one where I want it to break... but, is there a way to do that based on a list of specific hyphenation rules? I’ve currently got the list in two formats:

I have this data which I want to display it out in Vue:

As you see in my latex it shows end after If statement which supposes to end after Else. I tried removing the curly braces of the IF but it does not work.

I'm generating a PDF in java using itext5. Hyphenation works fine when I use an 'en' HyphenationAuto object. The xml jar is on the class path. In the debugger, the objects are non-null.

When I switch to use 'qq' as the language (a nonsense code), the hyphenation object in the debugger is null, as expected, because the xml jar for hyphenation has no file named qq.xml.

But when I use French-hyphenation instead of English-hyphenation, it fails to hyphenate at all.

When I switch to use 'fr' as the language, the hyphenation object in the debugger is non-null, as expected, showing that at least it's reading the xml file from the underlying jar. BUT the hyphenation is not occurring in the output PDF.

This would indicate a problem with the input text data, but I can't see any issues. There are no non-breaking spaces in the text data.

Changing my JRE's default locale has no effect.

When I use the 'en' hyphenator with French text, there are hyphens at line breaks, but the wrong rules are being applied (and it shows). That indicates no fundamental issue with the French text.

The core itext code is simply: