Add fullwidth and circled Unicode formatting commands

README.md

@@ -1,12 +1,14 @@
 # Unicode Text Formatter
 
-An [Obsidian](https://obsidian.md) plugin that transforms selected text into Unicode Mathematical Alphanumeric Symbols — Sans-Serif Bold, Italic, and Bold-Italic — for use in LinkedIn and Facebook posts.
+An [Obsidian](https://obsidian.md) plugin that transforms selected text into Unicode Mathematical Alphanumeric Symbols — Sans-Serif Bold, Italic, and Bold-Italic — plus Circled and Fullwidth characters — for use in social media posts.
 
 ## Features
 
 - **Unicode Bold** — converts letters and digits to sans-serif bold (𝗔𝗕𝗖 / 𝗮𝗯𝗰 / 𝟬𝟭𝟮)
 - **Unicode Italic** — converts letters to sans-serif italic (𝘈𝘉𝘊 / 𝘢𝘣𝘤)
 - **Unicode Bold Italic** — converts letters to sans-serif bold italic (𝘼𝘽𝘾 / 𝙖𝙗𝙘)
+- **Unicode Fullwidth** — converts letters and digits to fullwidth forms (ＡＢＣ / ａｂｃ / ０１２)
+- **Unicode Circled** — converts letters and digits to circled forms (ⒶⒷⒸ / ⓐⓑⓒ / ①②③)
 - **Remove Unicode Formatting** — converts any formatted Unicode characters back to plain ASCII
 - **Convert List Bullets to Arrow** — prefixes every selected line with `→ `, stripping any leading `* ` marker first
 - **Convert List Bullets to Em Dash** — prefixes every selected line with `— `, stripping any leading `* ` marker first
@@ -23,6 +25,8 @@ An [Obsidian](https://obsidian.md) plugin that transforms selected text into Uni
    - **Format as Unicode Bold**
    - **Format as Unicode Italic**
    - **Format as Unicode Bold Italic**
+   - **Format as Fullwidth**
+   - **Format as Circled Letters/Numbers**
    - **Remove Unicode Formatting** — reverses any of the above back to plain ASCII
    - **Convert List Bullets to Arrow** — prefixes every line with `→ ` (strips `* ` if present)
    - **Convert List Bullets to Em Dash** — prefixes every line with `— ` (strips `* ` if present)
@@ -60,7 +64,7 @@ npm run lint    # ESLint check
 |------|---------|
 | `src/unicode-maps.ts` | Builds character lookup maps from Unicode code point ranges |
 | `src/formatter.ts` | `transformText`, `cleanText`, `bulletToEmdash`, `bulletToArrow`, `numberedListSlash`, `numberedListParens`, `markdownToLinkedIn` — text transformation functions |
-| `src/commands.ts` | Registers the nine editor commands with the Obsidian plugin API |
+| `src/commands.ts` | Registers the eleven editor commands with the Obsidian plugin API |
 | `src/main.ts` | Plugin entry point — calls `registerCommands` on load |
 
 ### Unicode blocks used
@@ -70,6 +74,8 @@ npm run lint    # ESLint check
 | Sans-Serif Bold | U+1D5D4–U+1D5ED | U+1D5EE–U+1D607 | U+1D7EC–U+1D7F5 |
 | Sans-Serif Italic | U+1D608–U+1D621 | U+1D622–U+1D63B | — |
 | Sans-Serif Bold-Italic | U+1D63C–U+1D655 | U+1D656–U+1D66F | — |
+| Fullwidth | U+FF21–U+FF3A | U+FF41–U+FF5A | U+FF10–U+FF19 |
+| Circled | U+24B6–U+24CF | U+24D0–U+24E9 | U+2460–U+2468, U+24EA |
 
 ## Releasing
 

src/commands.ts

@@ -20,6 +20,8 @@ export function registerCommands(plugin: UnicodeFormatterPlugin): void {
     addFormatCommand(plugin, "bold",        "Format as unicode bold");
     addFormatCommand(plugin, "italic",      "Format as unicode italic");
     addFormatCommand(plugin, "bold-italic", "Format as unicode bold italic");
+    addFormatCommand(plugin, "fullwidth",   "Format as fullwidth");
+    addFormatCommand(plugin, "circled",     "Format as circled letters/numbers");
     plugin.addCommand({
         id: "unicode-formatter:clean",
         name: "Remove unicode formatting",

src/formatter.ts

@@ -1,11 +1,13 @@
-import { BOLD_MAP, ITALIC_MAP, BOLD_ITALIC_MAP, UNICODE_TO_ASCII_MAP, UNICODE_TO_STYLE } from "./unicode-maps";
+import { BOLD_MAP, ITALIC_MAP, BOLD_ITALIC_MAP, FULLWIDTH_MAP, CIRCLED_MAP, UNICODE_TO_ASCII_MAP, UNICODE_TO_STYLE } from "./unicode-maps";
 
-export type FormatStyle = "bold" | "italic" | "bold-italic";
+export type FormatStyle = "bold" | "italic" | "bold-italic" | "fullwidth" | "circled";
 
 const STYLE_MAPS: Record<FormatStyle, Record<string, string>> = {
     "bold": BOLD_MAP,
     "italic": ITALIC_MAP,
     "bold-italic": BOLD_ITALIC_MAP,
+    "fullwidth": FULLWIDTH_MAP,
+    "circled": CIRCLED_MAP,
 };
 
 export function transformText(text: string, style: FormatStyle): string {

src/unicode-maps.ts

@@ -25,18 +25,38 @@ export const ITALIC_MAP: Record<string, string> = buildMap(0x1D608, 0x1D622);
 // Sans-Serif Bold-Italic: U+1D63C–U+1D655 (upper), U+1D656–U+1D66F (lower)
 export const BOLD_ITALIC_MAP: Record<string, string> = buildMap(0x1D63C, 0x1D656);
 
+// Fullwidth: U+FF21–U+FF3A (upper), U+FF41–U+FF5A (lower), U+FF10–U+FF19 (digits)
+export const FULLWIDTH_MAP: Record<string, string> = buildMap(0xFF21, 0xFF41, 0xFF10);
+
+// Circled: U+24B6–U+24CF (upper), U+24D0–U+24E9 (lower), digits 1-9: U+2460–U+2468, 0: U+24EA
+function buildCircledMap(): Record<string, string> {
+    const map: Record<string, string> = {};
+    for (let i = 0; i < 26; i++) {
+        map[String.fromCharCode(65 + i)] = String.fromCodePoint(0x24B6 + i);
+        map[String.fromCharCode(97 + i)] = String.fromCodePoint(0x24D0 + i);
+    }
+    map["0"] = String.fromCodePoint(0x24EA);
+    for (let i = 0; i < 9; i++) {
+        map[String.fromCharCode(49 + i)] = String.fromCodePoint(0x2460 + i);
+    }
+    return map;
+}
+export const CIRCLED_MAP: Record<string, string> = buildCircledMap();
+
 // Reverse map: Unicode symbol → ASCII character
 export const UNICODE_TO_ASCII_MAP: Map<string, string> = new Map(
-    [BOLD_MAP, ITALIC_MAP, BOLD_ITALIC_MAP].flatMap(m =>
+    [BOLD_MAP, ITALIC_MAP, BOLD_ITALIC_MAP, FULLWIDTH_MAP, CIRCLED_MAP].flatMap(m =>
         Object.entries(m).map(([ascii, unicode]) => [unicode, ascii] as [string, string])
     )
 );
 
-export type FontStyle = "bold" | "italic" | "bold-italic";
+export type FontStyle = "bold" | "italic" | "bold-italic" | "fullwidth" | "circled";
 
 // Reverse map: Unicode symbol → font style
 export const UNICODE_TO_STYLE: Map<string, FontStyle> = new Map([
     ...Object.values(BOLD_MAP).map(ch => [ch, "bold"] as [string, FontStyle]),
     ...Object.values(ITALIC_MAP).map(ch => [ch, "italic"] as [string, FontStyle]),
     ...Object.values(BOLD_ITALIC_MAP).map(ch => [ch, "bold-italic"] as [string, FontStyle]),
+    ...Object.values(FULLWIDTH_MAP).map(ch => [ch, "fullwidth"] as [string, FontStyle]),
+    ...Object.values(CIRCLED_MAP).map(ch => [ch, "circled"] as [string, FontStyle]),
 ]);