Initial commit: Klammertext source distribution

Curated source subset assembled by klammertext-dev's doc/make_dist.sh: the Klammermachine (mac), the Standard Klammer Set (sks), the commands (com), editor plugins and install guides (doc), a test subset (tst), and lib/bin placeholders. Builds with 'make -C com'.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

sks/document/js/level.js

@@ -0,0 +1,51 @@
+/* Open up the table of contents to a specified level in the hierarchy: */
+
+/*
+function show_all() {
+    let level_buttons = K.getv(".depthchoice");
+    level_buttons[level_buttons.length-1].click();
+}
+
+function show_highlighted(node) {
+    //let carets = K.getv(".caret");
+    let node_caret = node.parentNode.previousElementSibling;
+    console.log(node_caret);
+}
+*/
+
+window.addEventListener("load", function (event) {
+
+    K.map(".depthchoice", function (depthchoice) {
+        depthchoice.addEventListener("click", function (event) {
+            //save_position();
+            let max_depth = K.text(event.srcElement);
+            K.map(".caret", function (e) {
+                let level = K.attr(e, "data-level");
+                let open = K.has_class(e, "caret-down");
+                if (level < max_depth) {
+                    if (!open) {
+                        e.click();
+                    }
+                } else {
+                    if (open) {
+                        e.click();
+                    }
+                }
+
+            });
+            //restore_position();
+        });
+    });
+
+    K.get("html").addEventListener("keypress", function (event) {
+        const max_depth = K.getv(".depthchoice").length;
+        const zero = 48; // Hah!
+        let depth = 1;
+        for (depth = 1; depth <= max_depth; depth += 1) {
+            if (event.which === zero + depth) {
+                K.get('.depthchoice[data-depth="' + depth + '"]').click();
+            }
+        }
+    });
+    highlight_headers_in_toc();
+});