Adding text transform functions and commands

.gitignore

@@ -13,6 +13,7 @@ package-lock.json
 main.js
 *.js.map
 /build/*
+build*
 
 # Exclude sourcemaps
 *.map

src/main.ts

@@ -1,4 +1,5 @@
 import { Plugin } from "obsidian";
+import { toUpperCase, toLowerCase, toTitleCase } from "./text";
 
 interface TextTransformSettings {
     mySetting: string;
@@ -13,9 +14,49 @@ export default class TextTransform extends Plugin {
 
     async onload() {
         await this.loadSettings();
+
+        // Add default commands for transforming cases
+        this.addCommand({
+            id: "text-transform-uppercase",
+            name: "Transform to Uppercase",
+            hotkeys: [
+                {
+                    modifiers: ["Mod", "Shift"],
+                    key: "U",
+                },
+            ],
+            editorCallback: toUpperCase,
+        });
+
+        this.addCommand({
+            id: "text-transform-Lowercase",
+            name: "Transform to Lowercase",
+            hotkeys: [
+                {
+                    modifiers: ["Mod"],
+                    key: "U",
+                },
+            ],
+            editorCallback: toLowerCase,
+        });
+        this.addCommand({
+            id: "text-transform-title-case",
+            name: "Transform to Title Case",
+            hotkeys: [
+                {
+                    modifiers: ["Mod", "Alt"],
+                    key: "U",
+                },
+            ],
+            editorCallback: toTitleCase,
+        });
+
+        console.log("Text Transform plugin loaded");
     }
 
-    onunload() {}
+    async onunload() {
+        console.log("Text Transform plugin unloaded");
+    }
 
     async loadSettings() {
         this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());

src/text.ts

@@ -0,0 +1,29 @@
+import { Editor, MarkdownView } from "obsidian";
+
+export function toUpperCase(editor: Editor, view: MarkdownView) {
+    const from = editor.getCursor("from");
+    const to = editor.getCursor("to");
+    const selection = editor.getSelection();
+    editor.replaceSelection(selection.toUpperCase());
+    editor.setSelection(from, to);
+}
+
+export function toLowerCase(editor: Editor, view: MarkdownView) {
+    const from = editor.getCursor("from");
+    const to = editor.getCursor("to");
+    const selection = editor.getSelection();
+    editor.replaceSelection(selection.toLowerCase());
+    editor.setSelection(from, to);
+}
+
+export function toTitleCase(editor: Editor, view: MarkdownView) {
+    const from = editor.getCursor("from");
+    const to = editor.getCursor("to");
+    const selection = editor.getSelection();
+    // First put the string into lower case
+    let titleCase = selection.toLowerCase();
+    // Then transform to title case
+    titleCase = titleCase.replace(/(^|\s)\S/g, (l) => l.toUpperCase());
+    editor.replaceSelection(titleCase);
+    editor.setSelection(from, to);
+}