Four or more dashes, without a leading, is also a special case, represented by four dashes. When specifying these ligatures, three equals signs ( =), dashes ( -), or tildes ( ~) represent three or more of those signs, except for the first three ligatures, where four equals signs represent four or more. The bottom row are indefinite-width ligatures. You can specify your own additional ligatures if you need Ligatures Limited to be aware of them. Represents 0x followed by any hexadecimal digit, and represents x surrounded by any decimal digits. Ligatures handled by Ligatures Limitedįira Code again, but with all ligatures suppressed In order to take advantage of Ligatures Limited, you must first have ligatures enabled in Visual Studio Code, and have a ligature font like Fira Code installed and selected (click here for instructions). Settings can be global or on a per-language basis (say, different rules for JavaScript than for Python, if you wish). While the default settings should meet many users’ needs, custom settings are available to control which syntactical contexts are handled, and which particular ligatures are displayed or suppressed. You can change your configuration suppress these ligatures, which you may wish to do when using a font which, for instance, renders fi within the width of a single character, instead of as two characters (see Disregarded Ligatures). The ligatures ff, fi, fl, ffi, and ffl are by default rendered in all contexts. This feature can be turned off entirely as well, so that the cursor position or text selection have no effect. Ligatures can also be suppressed (with individual characters shown instead) at the current insert cursor position (this is the default setting), for all of the current line being edited, or within all of the current text selection. If you want to see these ligatures rendered in any or all contexts, (provided, of course, that your chosen font defines them), you must expressly enable them. With the default settings for this extension ligatures are only rendered in three contexts: operators, punctuation, and comment markers, plus three special cases: when followed by a hexadecimal digit in a numeric context, rendered as 0× (if supported by your chosen font), and a similar pattern, 0o7 for octal numbers, and 0b1 for binary numbers as well.Īlso by default, the special case of x between any two decimal digits is suppressed, which would render as (for example) 2×4. The image below shows how those out-of-place ligatures are suppressed by Ligatures Limited, replaced with individual characters, while the triple-equals and double-ampersand ligatures are retained. In the top image, you can see ligatures that don’t make sense where they are - in the regex, where three different characters are being checked (not one big two-headed arrow), and the oddly formatted asterisks in the message string. Ligatures Limited is designed to make the rendering of ligatures more context-dependent. The problem is that, even with the contextual smarts built into ligature fonts like Fira Code, ligatures have a knack of popping up where you don’t want them. I enjoy using ligature fonts for coding so that symbols like arrows ( ) look like arrows ( ) and does-not-equal signs ( ) look like the real thing from math class ( ). Ligatures Limited Code ligatures only where you want them, not where you don’t
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