4.8.1 Top new questions this week

4.8.1.1 Understanding Brace Hacks

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418621

I am trying to better understand brace hacks.  The issue was brought to my attention in egreg's answer, Conflict between eqnarray and tabstackengine, that tabstackengine's failure to protect inner  ... 
[tex-core] [braces]
 

asked by Steven B. Segletes https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=25858 24 votes

answered by Marcel KrA~\274ger https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=80496 16 votes

4.8.1.2 How does TikZ sort intersections?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418644

I used the sort by key for intersections to sort along a line, expecting the intersections to be numbered 1 through 5. Why were they numbered 4, 5, 3, 1, 2? Playing around with it, I could not seem to  ... 
[tikz-pgf] [intersections]
 

asked by noedne https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=156456 15 votes

answered by marmot https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=121799 10 votes

4.8.1.3 Turkish small cap dotted 'i' in footnote

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418961

LuaLaTeX renders Turkish small cap dotted 'i'  correctly in the main body of the text, but not in footnotes. Are there any solutions? 
Here is a MWE: 
%!TEX program = lualatex 
... 
[xetex] [luatex] [polyglossia] [small-caps] [turkish]
 

asked by Kutt https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=131303 13 votes

answered by egreg https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=4427 9 votes

4.8.1.4 How to position letters*exactly* above each other?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418263

I'm trying to stack bold capital letters, like in the example below. There should be no white space between letters and letters also should not overlap. Some letters should be stretched tall or short. 
... 
[tikz-pgf] [positioning] [letters]
 

asked by Frank Seifert https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1236 13 votes

answered by Heiko Oberdiek https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=16967 24 votes

4.8.1.5 Embed non-PDF files (e.g., BibTex) into PDF with hyperlink in the PDF

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418606

Aim 
I want to achieve following: 
Embed paper.bib into PDF 
paper.bib should be opened with the OS tool associated with mimetype application/x-bibtex 
Have paper.bib listed in the attachment section  ... 
[external-files] [embedding] [attachfile] [embedfile] [navigator]
 

asked by koppor https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=9075 12 votes

answered by Marcel KrA~\274ger https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=80496 3 votes

4.8.1.6 What explains this discrepancy between LuaTeX and other engines?

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418001

I answered a question about hyphenating already-hyphenated words (like 'already-hyphenated', or 'often-hungry'), and this came up. Consider the following input file (uncomment the first three lines if  ... 
[luatex] [line-breaking] [boxes] [hyphenation] [glue]
 

asked by ShreevatsaR https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=48 12 votes

4.8.1.7 Ragged Right linebreaking, such that the last line is fullest, and the first most empty

https://tex.stackexchange.com/landing/r/newsletter?cta=question&id=418868

using \raggedright roughly speaking will result in linebreaking when ever there is not enough space on the line to put the next word. 
This in turn results in all lines, except the last, being mostly  ... 
[horizontal-alignment] [line-breaking]
 

asked by Lyndon White https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=5834 11 votes

answered by David Carlisle https://tex.stackexchange.com/landing/r/newsletter?cta=user&id=1090 11 votes