cli: better to-map

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
@@ -46,8 +46,8 @@ manually.
 Once you’re done building your flag structure, you can run `CLI.parse`. It
 will not abort the program on error, instead it will tell you what went wrong
 in a `Result.Error`. If it succeeds, the `Result.Success` contains a `Map` from
-the long flag name to the value (the values are `Maybe`s, since they might be
+the long flag name to the value. The values are not in the map if they are
-optional arguments.")
+unset.")
 (defmodule CLI
   (hidden Type)
   (private Type)
@@ -55,11 +55,16 @@ optional arguments.")
     (Integer [Long])
     (Floating [Double])
     (Str [String])
+    (None [])
   )
 
   (defmodule Type
     (defn = [a b]
       (match @a
+        (None)
+          (match @b
+            (None) true
+            _ false)
         (Integer i)
           (match @b
             (Integer j) (= i j)
@@ -78,6 +83,39 @@ 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)))
+
+    (defn to-int [x]
+      (match x
+        (Integer l) (Long.to-int l)
+        _ 0))
+
+    (defn to-long [x]
+      (match x
+        (Integer l) l
+        _ 0l))
+
+    (defn to-str [x]
+      (match x
+        (Str s) s
+        _ @""))
+
+    (defn to-float [x]
+      (match x
+        (Floating d) (Double.to-float d)
+        _ 0.0f))
+
+    (defn to-double [x]
+      (match x
+        (Floating d) d
+        _ 0.0))
+
+    (defn zero [] (None))
   )
 
   (hidden Tag)
@@ -97,7 +135,7 @@ 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 +147,7 @@ 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)
@@ -197,7 +235,10 @@ optional arguments.")
 
     (defn to-map [m]
       (Array.reduce
-        &(fn [a v] (Map.put a (Pair.a (Pair.a v)) (Pair.b (Pair.b v))))
+        &(fn [a v]
+          (match @(Pair.b (Pair.b v))
+            (Maybe.Just e) (Map.put a (Pair.a (Pair.a v)) &e)
+            (Maybe.Nothing) a))
         {}
         (values m)))
   )
@@ -265,7 +306,7 @@ 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))))
@@ -309,6 +350,7 @@ 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)))))
+      (when (Result.success? &res)
         (foreach [o options]
           (cond
             (and @(Option.required? o)
@@ -328,7 +370,7 @@ mesage is empty, `--help` was requested. If you don’t want to provide a
                           &(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
@@ -61,10 +61,29 @@ manually.</p>
 <p>Once you’re done building your flag structure, you can run <code>CLI.parse</code>. It
 will not abort the program on error, instead it will tell you what went wrong
 in a <code>Result.Error</code>. If it succeeds, the <code>Result.Success</code> contains a <code>Map</code> from
-the long flag name to the value (the values are <code>Maybe</code>s, since they might be
+the long flag name to the value. The values are not in the map if they are
-optional arguments.</p>
+unset.</p>
 
             </div>
+            <div class="binder">
+                <a class="anchor" href="#(defdynamic CLI.*gensym-counter* 1001)">
+                    <h3 id="(defdynamic CLI.*gensym-counter* 1001)">
+                        (defdynamic CLI.*gensym-counter* 1001)
+                    </h3>
+                </a>
+                <div class="description">
+                    dynamic
+                </div>
+                <p class="sig">
+                    Dynamic
+                </p>
+                <span>
+                    
+                </span>
+                <p class="doc">
+                    
+                </p>
+            </div>
             <div class="binder">
                 <a class="anchor" href="#Option">
                     <h3 id="Option">
@@ -82,7 +101,7 @@ 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 +122,7 @@ 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>
@@ -197,7 +216,7 @@ optional arguments.</p>
                     defn
                 </div>
                 <p class="sig">
-                    (λ [(Ref Parser)] (Result (Map String (Maybe Type)) String))
+                    (λ [(Ref Parser)] (Result (Map String Type) String))
                 </p>
                 <pre class="args">
                     (parse p)