Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

apps/ely-table/src/template.rs

@@ -0,0 +1,15 @@
+//! The blank workbook a new window starts from (TABLE-01).
+
+use gpui::App;
+
+/// A one-sheet flat ODF workbook with a local name.
+pub fn blank(cx: &App) -> String {
+    let name = ely_ui::i18n::text(cx, "table.sheet.default", &[("n", "1")]);
+    let name = name
+        .replace('&', "&")
+        .replace('<', "&lt;")
+        .replace('"', "&quot;");
+    format!(
+        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<office:document xmlns:office=\"urn:oasis:names:tc:opendocument:xmlns:office:1.0\" xmlns:table=\"urn:oasis:names:tc:opendocument:xmlns:table:1.0\" office:version=\"1.3\" office:mimetype=\"application/vnd.oasis.opendocument.spreadsheet\"><office:body><office:spreadsheet><table:table table:name=\"{name}\"/></office:spreadsheet></office:body></office:document>\n"
+    )
+}