refactor(*): refactor several exercises (#126)

Squash commit of the following commits:

- 2024-07-21 10:51:54 +1000 |ajborla| refactor(leap:config.json): reformat to conform to standard format
- 2024-07-21 10:50:31 +1000 |ajborla| refactor(grains:example.rexx): restructure code for brevity
- 2024-07-21 10:48:36 +1000 |ajborla| refactor(gigasecond-check.rexx): reformat to conform to standard format

exercises/practice/gigasecond/gigasecond-check.rexx

@@ -1,23 +1,22 @@
 /* Unit Test Runner: t-rexx */
-function = 'From'
-context('Checking the' function 'function')
+context('Checking the From function')
 
 /* Test Options */
 numeric digits 20
 
 /* Unit tests */
-check('date only specification of time' function||'("2011-04-25")',,
-      function||'("2011-04-25")',, '=', '2043-01-01 01:46:40')
+check('date only specification of time' 'From("2011-04-25")',,
+      'From("2011-04-25")',, '=', '2043-01-01 01:46:40')
 
-check('second test for date only specification of time' function||'("1977-06-13")',,
-      function||'("1977-06-13")',, '=', '2009-02-19 01:46:40')
+check('second test for date only specification of time' 'From("1977-06-13")',,
+      'From("1977-06-13")',, '=', '2009-02-19 01:46:40')
 
-check('third test for date only specification of time' function||'("1959-07-19")',,
-      function||'("1959-07-19")',, '=', '1991-03-27 01:46:40')
+check('third test for date only specification of time' 'From("1959-07-19")',,
+      'From("1959-07-19")',, '=', '1991-03-27 01:46:40')
 
-check('full time specified' function||'("2015-01-24", "22:00:00")',,
-      function||'("2015-01-24", "22:00:00")',, '=', '2046-10-02 23:46:40')
+check('full time specified' 'From("2015-01-24", "22:00:00")',,
+      'From("2015-01-24", "22:00:00")',, '=', '2046-10-02 23:46:40')
 
-check('full time with day roll-over' function||'("2015-01-24", "23:59:59")',,
-      function||'("2015-01-24", "23:59:59")',,'=', '2046-10-03 01:46:39')
+check('full time with day roll-over' 'From("2015-01-24", "23:59:59")',,
+      'From("2015-01-24", "23:59:59")',, '=', '2046-10-03 01:46:39')
 

exercises/practice/grains/.meta/example.rexx

@@ -8,5 +8,4 @@ Square : procedure
   if n < 1 | n > 64 then ; return -1
   else ; return ComputeSquare(n)
 
-Total : procedure
-return Square(64) * 2 - 1
+Total : procedure ; return Square(64) * 2 - 1

exercises/practice/leap/.meta/config.json

@@ -1,19 +1,11 @@
 {
-  "authors": [
-    "ajborla"
-  ],
+  "authors": ["ajborla"],
   "files": {
-    "solution": [
-      "leap.rexx"
-    ],
-    "test": [
-      "test-leap"
-    ],
-    "example": [
-      ".meta/example.rexx"
-    ]
+    "solution": ["leap.rexx"],
+    "test": ["test-leap"],
+    "example": [".meta/example.rexx"]
   },
-  "blurb": "Determine whether a given year is a leap year.",
+  "blurb": "Given a year, report if it is a leap year.",
   "source": "CodeRanch Cattle Drive, Assignment 3",
   "source_url": "https://coderanch.com/t/718816/Leap"
 }