From 0aa96141fa2780af37ca61ccf7bac6fde4fe0a1b Mon Sep 17 00:00:00 2001
From: Ivan du Toit <ivantoit@amazon.com>
Date: Tue, 27 Aug 2024 15:37:35 -0700
Subject: [PATCH] Fix title sanitization to remove invalid chars when importing

---
 src/AppHelper.ts | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/AppHelper.ts b/src/AppHelper.ts
index 4757865..89fbd1f 100644
--- a/src/AppHelper.ts
+++ b/src/AppHelper.ts
@@ -29,7 +29,7 @@ export class AppHelper {
 
 	async createOrModifyNote(title: string, markdown: string, front_matter: any): Promise<TFile> {
 		const parent = this.getParentFolder();
-		const filename = normalizePath(`${parent.path}/${title}.md`);
+		const filename = normalizePath(`${parent.path}/${this.sanitizeFileName(title)}.md`);
 		const file_content = `---
 ${stringifyYaml(front_matter)}
 ---
@@ -56,6 +56,23 @@ ${markdown}`;
 		return parent;
 	}
 
+	sanitizeFileName(name: string) {
+		let illegalRe = /[\/\?<>\\:\*\|"]/g;
+		let reservedRe = /^\.+$/;
+		let windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
+		let windowsTrailingRe = /[\. ]+$/;
+		let startsWithDotRe = /^\./; // Regular expression to match filenames starting with "."
+		let badLinkRe = /[\[\]#|^]/g; // Regular expression to match characters that interferes with links: [ ] # | ^
+
+		return name
+			.replace(illegalRe, '')
+			.replace(reservedRe, '')
+			.replace(windowsReservedRe, '')
+			.replace(windowsTrailingRe, '')
+			.replace(startsWithDotRe, '')
+			.replace(badLinkRe, '');
+	}
+
 	async updateNote(file: TFile, markdown: string, new_front_matter: any): Promise<void> {
 		const cached_front_matter = this.app.metadataCache.getFileCache(file).frontmatter;
 		const front_matter = {...cached_front_matter, ...new_front_matter};