Using \( for starting a mathematical expression completes with ) rather than \), also quotation marks.

The suggested formatting for mathematical expressions is \( ... \) for inline expressions and \[ ... \] for displays. However, LaTeX Workshop matches parentheses and brackets without respect to these rules, so typing in \( will have it complete with \( ... ), same with square brackets. It should probably match a \( with a \) at the end.

Also, left ticks, which in TeX are used for lefthand quotation marks, are automatically matched with apostrophes on the second half, as it should be, but if you insert a quote containing apostrophes inside

`` ...aasdf's... '',

they are removed from the end of the quote. I think this is a bug.

[lagru]

Open File > Preferences > User Snippets, select “LaTeX” in the dialog and a file named “latex.json” should open.

Paste the above snippet to the appropriate place inside the file and save. After that try typing the following inside a TeX file --im (which is my chosen prefix) and press tab. VSCode should now replace the prefix with \(...\).

[James-Yu]

Unfortunately, the math mode pairing for \( is not supported by vscode. Specifically,

	"autoClosingPairs": [
		["{", "}"],
		["[", "]"],
		["(", ")"],
		["$", "$"],
		["`", "'"],
		["\\(", "\\)"]
	],

won’t work. There can be some dirty hack like listening to user input and programatically add an addtional \. However, I am hesitated to do so since it can be against vscode’s design principle, and quality control can be a big issue. Though I will push a small fix on the pairing of ` and '. Further discussion is welcomed.