fix(regex): fix space removal to only include leading and trailing spaces

Author: kollhof

src/regex.fnk

@@ -18,7 +18,7 @@ reg = rx'
 ```
 ---
 rx = fn strings, ...exprs:
-  ingorables = regex raw'(\#.*\n)|[\n\s]'
+  ingorables = regex raw'(\s*#.*\n)|(\n\s*)'
 
   [...parts] = pipe strings.raw:
     map part:

src/regex.test.fnk

@@ -1,6 +1,6 @@
 {describe, it, expect, to_equal} = import '@fink/jest'
 
-{matches, match_all, find_index, split, replace_all, replace, rx} = import './regex'
+{matches, match_all, find_index, split, replace_all, replace, rx, regex} = import './regex'
 
 
 describe 'regex', fn:
@@ -63,8 +63,21 @@ describe 'string templates', fn:
     expect
       rx'
         (?<year>\d{4})-    # year part of a date
-        (?<month>\d{2})-   # month part of a date
+        (?<month>\d{2})-  # month part of a date
         (?<day>\d{2})      # day part of a date
       '
       to_equal rx'(?<year>\d{4})-(?<month>\d{2})-(?<day>\d{2})'
 
+
+  it 'handles escaping comment', fn:
+    expect
+      rx'foo\#bar'
+      to_equal regex 'foo\\#bar'
+
+
+  it 'handles spaces', fn:
+    expect
+      rx'[ ]{3}'
+      to_equal regex '[ ]{3}'
+
+