Add trailing option back

Author: blakeembrey

Readme.md

@@ -68,6 +68,7 @@ The `match` function returns a function for transforming paths into parameters:
 - **options** _(optional)_ (See [parse](#parse) for more options)
   - **sensitive** Regexp will be case sensitive. (default: `false`)
   - **end** Validate the match reaches the end of the string. (default: `true`)
+  - **trailing** Allows optional trailing delimiter to match. (default: `true`)
   - **decode** Function for decoding strings to params, or `false` to disable all processing. (default: `decodeURIComponent`)
 
 ```js

src/index.ts

@@ -41,6 +41,10 @@ export interface MatchOptions extends PathOptions {
    * Matches the path completely without trailing characters. (default: `true`)
    */
   end?: boolean;
+  /**
+   * Allows optional trailing delimiter to match. (default: `true`)
+   */
+  trailing?: boolean;
 }
 
 export interface CompileOptions extends PathOptions {
@@ -483,12 +487,13 @@ export function $match<P extends ParamData>(
   data: TokenData,
   options: MatchOptions = {},
 ): MatchFunction<P> {
-  const { decode = decodeURIComponent, end = true } = options;
+  const { decode = decodeURIComponent, end = true, trailing = true } = options;
   const { tokens, delimiter } = data;
   const flags = toFlags(options);
   const [source, keys] = toRegExp(tokens, delimiter);
 
   let pattern = `^${source}`;
+  if (trailing) pattern += `(?:${escape(delimiter)})?`;
   pattern += end ? "$" : `(?=${escape(delimiter)}|$)`;
   const re = new RegExp(pattern, flags);