fix: sync groups.yml from typst-docs (#1963)

crates/tinymist-analysis/src/upstream/groups.yml

@@ -5,7 +5,7 @@
   title: Variants
   category: math
   path: ["math"]
-  filter: ["serif", "sans", "frak", "mono", "bb", "cal"]
+  filter: ["serif", "sans", "frak", "mono", "bb", "cal", "scr"]
   details: |
     Alternate typefaces within formulas.
 
@@ -112,11 +112,18 @@
     a few more functions that create delimiter pairings for absolute, ceiled,
     and floored values as well as norms.
 
+    To prevent a delimiter from being matched by Typst, and thus auto-scaled,
+    escape it with a backslash. To instead disable auto-scaling completely, use
+    `{set math.lr(size: 1em)}`.
+
     # Example
     ```example
     $ [a, b/2] $
     $ lr(]sum_(x=1)^n], size: #50%) x $
     $ abs((x + y) / 2) $
+    $ \{ (x / y) \} $
+    #set math.lr(size: 1em)
+    $ { (a / b), a, b in (0; 1/2] } $
     ```
 
 - name: calc
@@ -130,6 +137,55 @@
     In addition to the functions listed below, the `calc` module also defines
     the constants `pi`, `tau`, `e`, and `inf`.
 
+- name: std
+  title: Standard library
+  category: foundations
+  path: ["std"]
+  details: |
+    A module that contains all globally accessible items.
+
+    # Using "shadowed" definitions
+    The `std` module is useful whenever you overrode a name from the global
+    scope (this is called _shadowing_). For instance, you might have used the
+    name `text` for a parameter. To still access the `text` element, write
+    `std.text`.
+
+    ```example
+    >>> #set page(margin: (left: 3em))
+    #let par = [My special paragraph.]
+    #let special(text) = {
+      set std.text(style: "italic")
+      set std.par.line(numbering: "1")
+      text
+    }
+
+    #special(par)
+
+    #lorem(10)
+    ```
+
+    # Conditional access
+    You can also use this in combination with the [dictionary
+    constructor]($dictionary) to conditionally access global definitions. This
+    can, for instance, be useful to use new or experimental functionality when
+    it is available, while falling back to an alternative implementation if
+    used on an older Typst version. In particular, this allows us to create
+    [polyfills](https://en.wikipedia.org/wiki/Polyfill_(programming)).
+
+    This can be as simple as creating an alias to prevent warning messages, for
+    example, conditionally using `pattern` in Typst version 0.12, but using
+    [`tiling`] in newer versions. Since the parameters accepted by the `tiling`
+    function match those of the older `pattern` function, using the `tiling`
+    function when available and falling back to `pattern` otherwise will unify
+    the usage across all versions. Note that, when creating a polyfill,
+    [`sys.version`]($category/foundations/sys) can also be very useful.
+
+    ```typ
+    #let tiling = if "tiling" in std { tiling } else { pattern }
+
+    ...
+    ```
+
 - name: sys
   title: System
   category: foundations
@@ -149,7 +205,7 @@
       single or double quotes.
 
       The value is always of type [string]($str). More complex data
-      may be parsed manually using functions like [`json.decode`]($json.decode).
+      may be parsed manually using functions like [`json`]($json).
 
 - name: sym
   title: General