[add] links to parameters

docs/template.typ

@@ -24,8 +24,12 @@
   show heading.where(level: 3): set text(1.2em)
 
   // show link: set text(fill: purple.darken(30%))
-  show link: set text(fill: rgb("#1e8f6f"))
-  show link: underline
+  show link: it => {
+    let dest = str(it.dest)
+    if "." in dest and not "/" in dest { return underline(it, stroke: luma(60%), offset: 1pt) }
+    set text(fill: rgb("#1e8f6f")) 
+    underline(it)
+  }
 
   v(4em)
 

docs/tidy-guide.typ

@@ -129,6 +129,7 @@ In the output, the preview of the code examples is shown next to it.
     read("/examples/wiggly.typ"), 
     name: "wiggly",
     scope: (wiggly: wiggly),
+    label-prefix: "wiggly1-",
     preamble: "#import wiggly: *\n", 
     old-syntax: false
   )
@@ -299,6 +300,7 @@ Currently, the two predefined styles `tidy.styles.default` and `tidy-styles.mini
     read("/examples/wiggly.typ"), 
     name: "wiggly",
     scope: (wiggly: wiggly),
+    label-prefix: "wiggly2-",
     preamble: "#import wiggly: *\n",
     old-syntax: false
   )
@@ -471,8 +473,15 @@ Let us now _self-document_ this package:
 
 #let style = tidy.styles.default
 #{
-  set heading(numbering: none)
   set text(size: 9pt)
+  set heading(numbering: none)
+  show heading.where(level: 3): set text(1.5em)
+  show heading.where(level: 4): it => {
+    set text(1.4em)
+    set align(center)
+    set block(below: 1.2em)
+    it
+  }
 
   let module = tidy.parse-module(
     (

src/styles/default.typ

@@ -104,6 +104,9 @@
       if "types" in description {
         types = ": " + description.types.map(x => show-type(x, style-args: style-args)).join(" ")
       }
+      if style-args.enable-cross-references and not (description.description == "" and style-args.omit-empty-param-descriptions) {
+        name = link(label(style-args.label-prefix + fn.name + "." + name.trim(".")), name)
+      }
       items.push(name + types)
     }
     items.join( if inline-args {", "} else { ",\n  "})

src/styles/minimal.typ

@@ -43,15 +43,18 @@
     let inline-args = fn.args.len() < 5
     if not inline-args { "\n  " }
     let items = ()
-    for (arg-name, info) in fn.args {
-      if style-args.omit-private-parameters and arg-name.starts-with("_") { 
+    for (name, info) in fn.args {
+      if style-args.omit-private-parameters and name.starts-with("_") { 
         continue
       }
       let types 
       if "types" in info {
         types = ": " + info.types.map(x => show-type(x)).join(" ")
       }
-      items.push(box(arg-name + types))
+      if style-args.enable-cross-references and not (info.description == "" and style-args.omit-empty-param-descriptions) {
+        name = link(label(style-args.label-prefix + fn.name + "." + name.trim(".")), name)
+      }
+      items.push(box(name + types))
     }
     items.join( if inline-args {", "} else { ",\n  "})
     if not inline-args { "\n" } + ")"