Sync wordy (#932)

Author: mk-mxp

bin/auto-sync.txt

@@ -71,5 +71,6 @@ strain
 sublist
 two-bucket
 two-fer
+wordy
 yacht
 zebra-puzzle

config.json

@@ -784,7 +784,7 @@
         "uuid": "85408bdd-3c22-4b5a-9c61-044ddfb0c3ac",
         "practices": [],
         "prerequisites": [],
-        "difficulty": 1,
+        "difficulty": 5,
         "topics": [
           "parsing",
           "strings",

exercises/practice/wordy/.docs/instructions.md

@@ -40,29 +40,20 @@ Now, perform the other three operations.
 
 Handle a set of operations, in sequence.
 
-Since these are verbal word problems, evaluate the expression from
-left-to-right, _ignoring the typical order of operations._
+Since these are verbal word problems, evaluate the expression from left-to-right, _ignoring the typical order of operations._
 
 > What is 5 plus 13 plus 6?
 
 24
 
 > What is 3 plus 2 multiplied by 3?
 
-15  (i.e. not 9)
+15 (i.e. not 9)
 
 ## Iteration 4 — Errors
 
 The parser should reject:
 
-* Unsupported operations ("What is 52 cubed?")
-* Non-math questions ("Who is the President of the United States")
-* Word problems with invalid syntax ("What is 1 plus plus 2?")
-
-## Bonus — Exponentials
-
-If you'd like, handle exponentials.
-
-> What is 2 raised to the 5th power?
-
-32
+- Unsupported operations ("What is 52 cubed?")
+- Non-math questions ("Who is the President of the United States")
+- Word problems with invalid syntax ("What is 1 plus plus 2?")

exercises/practice/wordy/.meta/example.php

@@ -1,57 +1,39 @@
 <?php
 
-/*
- * By adding type hints and enabling strict type checking, code can become
- * easier to read, self-documenting and reduce the number of potential bugs.
- * By default, type declarations are non-strict, which means they will attempt
- * to change the original type to match the type specified by the
- * type-declaration.
- *
- * In other words, if you pass a string to a function requiring a float,
- * it will attempt to convert the string value to a float.
- *
- * To enable strict mode, a single declare directive must be placed at the top
- * of the file.
- * This means that the strictness of typing is configured on a per-file basis.
- * This directive not only affects the type declarations of parameters, but also
- * a function's return type.
- *
- * For more info review the Concept on strict type checking in the PHP track
- * <link>.
- *
- * To disable strict typing, comment out the directive below.
- */
-
 declare(strict_types=1);
 
 function calculate($question = "")
 {
     preg_match(
-        "/What is (-?\d+) (plus|minus|multiplied by|divided by) "
-        . "(-?\d+)(?: (plus|minus|multiplied by|divided by) (-?\d+))?\?/",
+        "/What is (-?\d+)(?: (plus|minus|multiplied by|divided by) "
+        . "(-?\d+)(?: (plus|minus|multiplied by|divided by) (-?\d+))?)?\?/",
         $question,
         $matches
     );
 
-    if (empty($matches[2])) {
+    if (!isset($matches[1])) {
         throw new InvalidArgumentException();
     }
 
-    switch ($matches[2]) {
-        case 'plus':
-            $number = $matches[1] + $matches[3];
-            break;
-        case 'minus':
-            $number = $matches[1] - $matches[3];
-            break;
-        case 'multiplied by':
-            $number = $matches[1] * $matches[3];
-            break;
-        case 'divided by':
-            $number = $matches[1] / $matches[3];
-            break;
-        default:
-            $number = 0;
+    $number = $matches[1];
+
+    if (isset($matches[2]) && isset($matches[3])) {
+        switch ($matches[2]) {
+            case 'plus':
+                $number = $matches[1] + $matches[3];
+                break;
+            case 'minus':
+                $number = $matches[1] - $matches[3];
+                break;
+            case 'multiplied by':
+                $number = $matches[1] * $matches[3];
+                break;
+            case 'divided by':
+                $number = $matches[1] / $matches[3];
+                break;
+            default:
+                throw new InvalidArgumentException();
+        }
     }
 
     if (isset($matches[4]) && isset($matches[5])) {

exercises/practice/wordy/.meta/tests.toml

@@ -1,13 +1,32 @@
-# This is an auto-generated file. Regular comments will be removed when this
-# file is regenerated. Regenerating will not touch any manually added keys,
-# so comments can be added in a "comment" key.
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
 
 [88bf4b28-0de3-4883-93c7-db1b14aa806e]
 description = "just a number"
 
+[18983214-1dfc-4ebd-ac77-c110dde699ce]
+description = "just a zero"
+
+[607c08ee-2241-4288-916d-dae5455c87e6]
+description = "just a negative number"
+
 [bb8c655c-cf42-4dfc-90e0-152fcfd8d4e0]
 description = "addition"
 
+[bb9f2082-171c-46ad-ad4e-c3f72087c1b5]
+description = "addition with a left hand zero"
+
+[6fa05f17-405a-4742-80ae-5d1a8edb0d5d]
+description = "addition with a right hand zero"
+
 [79e49e06-c5ae-40aa-a352-7a3a01f70015]
 description = "more addition"