Leave empty string for text prefix

Make things easier

Author: xingrz

src/ast.ts

@@ -42,7 +42,7 @@ export type RDTIcon = RDTNode & {
 export type RDTText = RDTNode & {
   kind: 'text';
   text: string;
-  prefix?: string;
+  prefix: string;
   params?: Record<string, string>;
 };
 
@@ -151,7 +151,7 @@ export function parseIcon(src: string, offset: number): RDTIcon {
 }
 
 export function parseText(src: string, offset: number): RDTText {
-  const [, prefix, text = '', params] = src.match(/^(.*?)\*(.*?)(?:__(.+))?$/) ?? [];
+  const [, prefix = '', text = '', params] = src.match(/^(.*?)\*(.*?)(?:__(.+))?$/) ?? [];
 
   return {
     kind: 'text',

src/components/BSMap/BSIcon.vue

@@ -43,7 +43,7 @@ const style = computed(() => ({
   '--bs-map-icon-ratio': (ratio.value == 1 ? undefined : ratio.value),
 }) as CSSProperties);
 
-function selectTextWidth(flag: string | undefined): number | undefined {
+function selectTextWidth(flag: string): number | undefined {
   switch (flag) {
     case 'o':
       return 0.125;