feat: support TrustedValue

azu · azu · commit 3037c50e74c2 · 2021-10-13T20:32:45.000+09:00
diff --git a/src/mdEscape.ts b/src/mdEscape.ts
@@ -1,3 +1,5 @@
+import { isTrustedValue, TrustedValue } from "./trusted";
+
 const replacementsTuples: [matchPattern: RegExp, newChar: string][] = [
     [/\*/g, "\\*"],
     [/#/g, "\\#"],
@@ -10,7 +12,10 @@ const replacementsTuples: [matchPattern: RegExp, newChar: string][] = [
     [/>/g, "&gt;"],
     [/_/g, "\\_"]
 ];
-export const mdEscape = (text: string): string => {
+export const mdEscape = (text: string | TrustedValue): string => {
+    if (isTrustedValue(text)) {
+        return text.value;
+    }
     return replacementsTuples.reduce((text, replacement) => {
         return text.replace(replacement[0], replacement[1]);
     }, text);
diff --git a/src/mdImg.ts b/src/mdImg.ts
@@ -1,8 +1,9 @@
 import { mdEscape } from "./mdEscape";
+import { TrustedValue } from "./trusted";
 
 export type MdImgOptions = {
     url: string;
-    alt?: string;
+    alt?: string | TrustedValue;
 };
 export const mdImg = ({ url, alt = "" }: MdImgOptions): string => {
     return `![${mdEscape(alt)}](${url})`;
diff --git a/src/mdLink.ts b/src/mdLink.ts
@@ -1,9 +1,10 @@
 import { mdEscape } from "./mdEscape";
+import { TrustedValue } from "./trusted";
 
 export type MdLinkOptions = {
-    text: string;
+    text: string | TrustedValue;
     url: string;
-    title?: string;
+    title?: string | TrustedValue;
 };
 export const mdLink = ({ text, url, title }: MdLinkOptions): string => {
     if (title) {
diff --git a/src/trusted.ts b/src/trusted.ts
@@ -0,0 +1,19 @@
+export const TrustedSymbol = Symbol("Trusted Value");
+export type TrustedValue = {
+    trustedSymbol: Symbol;
+    value: string;
+};
+export const isTrustedValue = (value: any): value is TrustedValue => {
+    return (
+        typeof value === "object" &&
+        value !== null &&
+        "trustedSymbol" in value &&
+        value["trustedSymbol"] === TrustedSymbol
+    );
+};
+export const trusted = (str: string) => {
+    return {
+        trustedSymbol: TrustedSymbol,
+        value: str
+    };
+};
