added comments

src/functions.ts

@@ -4,6 +4,9 @@ const MD_TAG = /!\[.*?\]\((.*?)\)/;
 const OBSIDIAN_TAG = /!\[\[(.*?)\]\]/;
 const IMG_TAG = /<img([\w\W]+?)\/>/;
 
+/**
+ * recognize and return text on images
+ */
 export async function getText(
 	imagePath: string,
 	language = "eng"
@@ -19,6 +22,9 @@ export async function getText(
 	}
 }
 
+/**
+ * check if is a valid url
+ */
 export function isValidUrl(url: string): boolean {
 	const pattern = new RegExp(
 		"^(https?:\\/\\/)([\\w.-]+)(:\\d+)?(\\/[\\w#!:.?+=&%@!-/]*)?$",
@@ -28,42 +34,61 @@ export function isValidUrl(url: string): boolean {
 	return pattern.test(url);
 }
 
+/**
+ * check if string is a obsidian image tag
+ */
 export function isObsidianTag(string: string): boolean {
 	const pattern = OBSIDIAN_TAG;
 
 	return pattern.test(string);
 }
 
+/**
+ * Check if string is a markdown tag
+ */
 export function isMarkdownTag(string: string): boolean {
-	const pattern = MD_TAG;
-
-	return pattern.test(string);
+	return MD_TAG.test(string);
 }
 
+/**
+ * Check if string is an image tag
+ */
 export function isImgTag(string: string): boolean {
-	const pattern = IMG_TAG;
-
-	return pattern.test(string);
+	return IMG_TAG.test(string);
 }
 
+/**
+ * get value from src attribute from images
+ */
 export function extractSrc(selection: string): string | undefined {
 	const match = selection.match(/src\s*=\s*['"](.+?)['"]/);
 
 	return match && match[1] ? match[1] : undefined;
 }
 
+/**
+ * get path from markdown markup
+ */
 export function extractMdPath(selection: string): string | undefined {
 	const match = selection.match(MD_TAG);
 
 	return match && match[1] ? match[1] : undefined;
 }
 
+/**
+ * get path from obsidian markup
+ * get only file name of also have defined size
+ */
 export function extractObsidianPath(selection: string): string | undefined {
 	const match = selection.match(OBSIDIAN_TAG);
 
 	return match && match[1] ? match[1].split("|")[0] : undefined;
 }
 
+/**
+ * check if file is allowed.
+ * checky only based on file ending, not on it's content
+ */
 export function checkFileType(filePath: string): boolean {
 	const imageRegex = /\.(jpg|jpeg|png|gif|bmp|pbm|webp)$/i;
 	return imageRegex.test(filePath);

src/main.ts

@@ -217,6 +217,9 @@ export default class ImageToTextOcrPlugin extends Plugin {
 		await this.saveData(this.settings);
 	}
 
+	/**
+	 * get file path based on filename
+	 */
 	async resolveImagePath(fileName: string): Promise<string> {
 		// todo avoid getFiles
 		const files = this.app.vault.getFiles();
@@ -240,6 +243,9 @@ export default class ImageToTextOcrPlugin extends Plugin {
 		}
 	}
 
+	/**
+	 * get path from selection if possible
+	 */
 	async getSelectedImagePath(selection: string): Promise<string> {
 		let imagePath!: string | undefined;
 		let fullPath!: string | undefined;