Add bracing for words containing unbraced capital letters

README.md

@@ -132,6 +132,9 @@ bibtex-tidy references.bib
       Where values are all caps, make them title case. For example, {JOURNAL OF
       TEA} will become {Journal of Tea}.
 
+  --brace-capital-word
+      Brace the whole word if a capital letter is not braced.
+
   --escape, --no-escape
       Escape special characters, such as umlaut. This ensures correct typesetting
       with latex. Enabled by default.

bibtex-tidy.0

@@ -86,6 +86,9 @@ OPTIONS
         Where values are all caps, make them title case. For
         example, {JOURNAL OF TEA} will become {Journal of Tea}.
 
+    --brace-capital-word
+        Brace the whole word if a capital letter is not braced.
+
     --escape, --no-escape
         Escape special characters, such as umlaut. This ensures
         correct typesetting with latex. Enabled by default.

bibtex-tidy.d.ts

@@ -82,6 +82,12 @@ export declare type BibTeXTidyOptions = {
 	 * Where values are all caps, make them title case. For example, {JOURNAL OF TEA} will become {Journal of Tea}.
 	 */
 	dropAllCaps?: boolean;
+	/**
+	 * Brace words which contain uppercase letters.
+	 *
+	 * Brace the whole word if a capital letter is not braced.
+	 */
+	braceCapitalWord?: boolean;
 	/**
 	 * Escape special characters
 	 *

docs/index.html

@@ -119,6 +119,10 @@ <h1>BibTeX Tidy</h1>
 						<input type="checkbox" />
 						<span class="name"></span>
 					</label>
+					<label data-option="braceCapitalWord">
+						<input type="checkbox" />
+						<span class="name"></span>
+					</label>
 					<label data-option="escape">
 						<input type="checkbox" />
 						<span class="name"></span>

docs/index.ts

@@ -171,6 +171,7 @@ function getOptions(): Options {
 		stripComments: options.stripComments.checked,
 		tidyComments: options.tidyComments.checked,
 		encodeUrls: options.encodeUrls.checked,
+		braceCapitalWord: options.braceCapitalWord.checked,
 		escape: options.escape.checked,
 		trailingCommas: options.trailingCommas.checked,
 		removeEmptyFields: options.removeEmptyFields.checked,

src/format.ts

@@ -9,6 +9,7 @@ import {
 import {
 	titleCase,
 	escapeSpecialCharacters,
+	braceWordsWithCapital,
 	wrapText,
 	unwrapText,
 	addEnclosingBraces,
@@ -148,6 +149,7 @@ export function formatValue(
 		align,
 		stripEnclosingBraces,
 		dropAllCaps,
+		braceCapitalWord,
 		escape,
 		encodeUrls,
 		wrap,
@@ -195,6 +197,9 @@ export function formatValue(
 			if (nameLowerCase === 'url' && encodeUrls) {
 				value = escapeURL(value);
 			}
+			if (braceCapitalWord) {
+				value = braceWordsWithCapital(value);
+			}
 			// escape special characters like %
 			if (escape) {
 				value = escapeSpecialCharacters(value);
@@ -218,7 +223,6 @@ export function formatValue(
 			if (type === 'braced' && field.value.concat.length === 1) {
 				value = value.trim();
 			}
-
 			if (type === 'braced' || curly) {
 				const lineLength = `${indent}${align}{${value}}`.length;
 				const multiLine = value.includes('\n\n');

src/optionDefinitions.ts

@@ -237,6 +237,15 @@ export const optionDefinitions: OptionDefinition[] = [
 		type: 'boolean',
 		defaultValue: false,
 	},
+	{
+		key: 'braceCapitalWord',
+		cli: { '--brace-capital-word': true },
+		toCLI: (val) => (val ? '--brace-capital-word' : undefined),
+		title: 'Brace words which contain uppercase letters.',
+		description: ['Brace the whole word if a capital letter is not braced.'],
+		type: 'boolean',
+		defaultValue: false,
+	},
 	{
 		key: 'escape',
 		cli: { '--escape': true, '--no-escape': false },

src/utils.ts

@@ -1,5 +1,14 @@
 import { specialCharacters } from './unicode';
 
+export function braceWordsWithCapital(str: string): string {
+	return str.replace(
+		/(?<![\{\p{L}])\p{L}*\p{Lu}\p{L}*(?![\p{L}\}])/gu,
+		(match) => {
+			return `{${match}}`;
+		}
+	);
+}
+
 export function escapeSpecialCharacters(str: string): string {
 	let mathExpressions: string[] = [];