Add docs for std module

crates/typst-library/src/lib.rs

@@ -148,7 +148,7 @@ pub struct Library {
     /// The default style properties (for page size, font selection, and
     /// everything else configurable via set and show rules).
     pub styles: Styles,
-    /// The standard library as a value. Used to provide the `std` variable.
+    /// The standard library as a value. Used to provide the `std` module.
     pub std: Binding,
     /// In-development features that were enabled.
     pub features: Features,

docs/reference/groups.yml

@@ -130,6 +130,42 @@
     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: |
+    # Collection of globally accessible items under `std` variable.
+    # Collection of globally accessible items under `std.` prefix.
+    # Module consisting of globally accessible items.
+    # The standard library as a value.
+    An alias for globally accessible items comprsing the standard library.
+
+    This is useful whenever you override a name from the global scope, e.g.,
+    the [`text`] element. To access the element simply write `std.text`.
+    Since `std` is not a keyword, you can override it if necessary.
+    # Note that element items from `std` variable work exactly the same way,
+    Note that element items from `std` module work exactly like normal ones,
+    meaning they can be used as constructors, in set rules, etc.
+
+    # Example
+    ```example
+    #let par = [My special paragraph.]
+    #let special(text) = {
+      set std.text(style: "italic", weight: "bold")
+      set std.par.line(numbering: "1")
+      parbreak()
+      text
+      parbreak()
+    }
+
+    #lorem(10)
+    #special[
+      #par
+    ]
+    #lorem(10)
+    ```
+
 - name: sys
   title: System
   category: foundations

docs/src/lib.rs

@@ -37,7 +37,7 @@ static GROUPS: LazyLock<Vec<GroupData>> = LazyLock::new(|| {
     let mut groups: Vec<GroupData> =
         yaml::from_str(load!("reference/groups.yml")).unwrap();
     for group in &mut groups {
-        if group.filter.is_empty() {
+        if group.filter.is_empty() && group.name != "std" {
             group.filter = group
                 .module()
                 .scope()