Initial implementation of complete assignment

This is the initial implementation of the generation of complete document of the assignments.

java/buildall: Generates a Typst document from the list of assignments
in `alist.txt` (needs to updated to work with `state.sql` in future).
java/prelude.typ: Contains the prelude code responsible for generating
the table of contents, using the facilities provided by Typst.
java/template.typ: Updated so that it can be used with `prelude.typ` for
generating the table of contents.
.gitignore: To ignore `all.typ`, which is a build artifact.

1 files changed, 38 insertions, 0 deletions

diff --git a/java/prelude.typ b/java/prelude.typ
new file mode 100644
index 0000000..027bfef
--- /dev/null
+++ b/java/prelude.typ
@@ -0,0 +1,38 @@
+#import "@preview/tablex:0.0.7": tablex, cellx
+#import "/template.typ": *
+
+#apply(page-numbering: "(i)" , [
+  #align(center, [== Contents])
+  #let heading-format(content) = cellx(align: center + horizon, content)
+  #let col-aligns = (right, auto, center + horizon, center + horizon, auto)
+  #let preprocess-alist(l, lpno) = {
+    let i = 0
+    let e = l.len() - 1
+    let nl = ()
+    while i < e {
+      let it = l.at(i)
+      i = i + 1
+      let nit = l.at(i)
+      it.at(2) = [ #it.at(2) - #{nit.at(2) - 1} ]
+      it.push([])
+      nl.push(it)
+    }
+    l.at(e).at(2) = [ #{l.at(e).at(2)} - #lpno ]
+    l.at(e).push([])
+    nl.push(l.at(e))
+    nl
+  }
+  #list-of-assignments((l, lpno) =>
+    tablex(
+      columns: (3em, 1fr, 4em, 8em, 10em),
+      stroke: 1pt + gray,
+      map-cols: (i, cells) => (cells.first(), ..cells.slice(1).map(cell => (..cell, align: col-aligns.at(i)))),
+      heading-format[*Sl.* \ *No.*], heading-format[*Description*], heading-format[*Page No.*], heading-format[*Date*], heading-format[*Teacher’s* \ *Signature*],
+      ..preprocess-alist(l, lpno).flatten(),
+    ))
+])
+
+#colbreak()
+
+#counter(page).update(0)
+