cli: fix memerror in usage

README.md

@@ -3,7 +3,7 @@
 A simple CLI library for Carp.
 
 ```clojure
-(load "https://veitheller.de/git/carpentry/cli@master")
+(load "https://veitheller.de/git/carpentry/cli@0.0.2")
 
 (defn main []
   (let [p (=> (CLI.new @"My super cool tool!")
@@ -18,7 +18,7 @@ A simple CLI library for Carp.
 ## Installation
 
 ```clojure
-(load "https://veitheller.de/git/carpentry/cli@master")
+(load "https://veitheller.de/git/carpentry/cli@0.0.2")
 ```
 
 ## Usage

cli.carp

@@ -6,7 +6,7 @@
 (doc CLI "is a simple CLI library for Carp.
 
 ```clojure
-(load \"https://veitheller.de/git/carpentry/cli@0.0.1\")
+(load \"https://veitheller.de/git/carpentry/cli@0.0.2\")
 
 (defn main []
   (let [p (=> (CLI.new @\"My super cool tool!\")
@@ -21,7 +21,7 @@
 ## Installation
 
 ```clojure
-(load \"https://veitheller.de/git/carpentry/cli@0.0.1\")
+(load \"https://veitheller.de/git/carpentry/cli@0.0.2\")
 ```
 
 ## Usage
@@ -78,6 +78,12 @@ optional arguments.")
         (Integer i) (Long.format s i)
         (Floating f) (Double.format s f)
         (Str s2) (String.format s &s2)))
+
+    (defn str [t]
+      (match @t
+        (Integer i) (str i)
+        (Floating f) (str f)
+        (Str s) (str s)))
   )
 
   (hidden Tag)
@@ -97,7 +103,7 @@ optional arguments.")
   )
 
   (doc Option "is the option type. To construct an `Option`, please use
-[`int`](#int), [`float`](#float), or [`str](#str).")
+[`int`](#int), [`float`](#float), or [`str`](#str).")
   (deftype Option [
     type- Tag
     long String
@@ -109,7 +115,7 @@ optional arguments.")
   ])
 
   (doc Parser "is the parser type. To construct a `Parser`, please use
-[`new](#new).")
+[`new`](#new).")
   (deftype Parser [
     description String
     options (Array Option)
@@ -265,7 +271,7 @@ optional arguments.")
                   (Option.long arg) (Option.short arg) (Option.description arg)))
           (when @(Option.required? arg) (IO.print " REQUIRED"))
           (when (Maybe.just? (Option.default arg))
-            (IO.print &(fmt " (default: %s)" &(Maybe.unsafe-from @(Option.default arg)))))
+            (IO.print &(fmt " (default: %s)" &(str &(Maybe.unsafe-from @(Option.default arg))))))
           (match @(Option.options arg)
             (Maybe.Just o)
               (IO.print &(fmt " (options: %s)" &(join ", " &(Array.copy-map &str &o))))
@@ -309,26 +315,27 @@ mesage is empty, `--help` was requested. If you don’t want to provide a
             (do
               (set! res (Result.Error (fmt "Unexpected argument: %s" x)))
               (break)))))
-      (foreach [o options]
-        (cond
-          (and @(Option.required? o)
-               (not (CmdMap.set? &values (Option.long o))))
-            (do
-              (set! res (Result.Error (fmt "Required option missing: --%s" (Option.long o))))
-              (break))
-          (Maybe.just? (Option.options o))
-            (let-do [opts (Maybe.unsafe-from @(Option.options o))]
-              (when (not (CmdMap.in? &values (Option.long o) &opts))
-                (do
-                  (set! res
-                    (Result.Error
-                      (fmt
-                        "Option %s received an invalid option %s (Options are %s)"
-                        (Option.long o)
-                        &(CmdMap.get &values (Option.long o))
-                        &(join ", " &(Array.copy-map &str &opts)))))
-                  (break))))
-          ()))
+      (when (Result.success? &res)
+        (foreach [o options]
+          (cond
+            (and @(Option.required? o)
+                 (not (CmdMap.set? &values (Option.long o))))
+              (do
+                (set! res (Result.Error (fmt "Required option missing: --%s" (Option.long o))))
+                (break))
+            (Maybe.just? (Option.options o))
+              (let-do [opts (Maybe.unsafe-from @(Option.options o))]
+                (when (not (CmdMap.in? &values (Option.long o) &opts))
+                  (do
+                    (set! res
+                      (Result.Error
+                        (fmt
+                          "Option %s received an invalid option %s (Options are %s)"
+                          (Option.long o)
+                          &(CmdMap.get &values (Option.long o))
+                          &(join ", " &(Array.copy-map &str &opts)))))
+                    (break))))
+            ())))
       (match res
         (Result.Success _) (Result.Success (CmdMap.to-map &values))
         (Result.Error x) (Result.Error x))))

docs/CLI.html

@@ -30,7 +30,7 @@
             </h1>
             <div class="module-description">
                 <p>is a simple CLI library for Carp.</p>
-<pre><code class="language-clojure">(load &quot;https://veitheller.de/git/carpentry/cli@0.0.1&quot;)
+<pre><code class="language-clojure">(load &quot;https://veitheller.de/git/carpentry/cli@0.0.2&quot;)
 
 (defn main []
   (let [p (=&gt; (CLI.new @&quot;My super cool tool!&quot;)
@@ -42,7 +42,7 @@
       (Result.Error msg) (do (IO.errorln &amp;msg) (CLI.usage &amp;p)))))
 </code></pre>
 <h2>Installation</h2>
-<pre><code class="language-clojure">(load &quot;https://veitheller.de/git/carpentry/cli@0.0.1&quot;)
+<pre><code class="language-clojure">(load &quot;https://veitheller.de/git/carpentry/cli@0.0.2&quot;)
 </code></pre>
 <h2>Usage</h2>
 <p><code>CLI</code> should be built using combinators, as in the example above. It has, as of
@@ -82,7 +82,7 @@ optional arguments.</p>
                 </span>
                 <p class="doc">
                     <p>is the option type. To construct an <code>Option</code>, please use
-<a href="#int"><code>int</code></a>, <a href="#float"><code>float</code></a>, or <a href="#str">`str</a>.</p>
+<a href="#int"><code>int</code></a>, <a href="#float"><code>float</code></a>, or <a href="#str"><code>str</code></a>.</p>
 
                 </p>
             </div>
@@ -103,7 +103,7 @@ optional arguments.</p>
                 </span>
                 <p class="doc">
                     <p>is the parser type. To construct a <code>Parser</code>, please use
-<a href="#new">`new</a>.</p>
+<a href="#new"><code>new</code></a>.</p>
 
                 </p>
             </div>