Fix two bugs concerning vowels in scanner

allzweckmesser/scanner.py

@@ -209,7 +209,7 @@ def get_syllables_for_accented_form(token):
     syll_vowel_length = 1
     syll_has_vowel = False
     for i, c in enumerate(chunks):
-        if c[0] in 'aeiouy':
+        if c[0] in 'AEIOUYaeiouy':
             if syll_has_vowel:
                 # Syllable already has a vowel.
                 # Add the current syllable and begin a new one.
@@ -229,7 +229,7 @@ def get_syllables_for_accented_form(token):
                 syll_text += c.rstrip('_^')
             syll_has_vowel = True
             syll_vowel_length = (
-                2 if len(c) > 1 and c[1] in 'aeiouy_' else 1
+                2 if len(c) > 1 and c[1] in 'AEIOUYaeiouy_' else 1
             )
         else:
             syll_text += c.rstrip('_^')
@@ -388,7 +388,7 @@ def get_syllables(reading):
 
 def muta_cum_liquida(verse):
     mcl_regex = re.compile(
-        r'[aeiouv](([bpsckgdt]|(qu)|(qv))\W*[lrmn])([aeiouv]|[.?!]|$)',
+        r'[aeiouvy](([bpsckgdt]|(qu)|(qv))\W*[lrmn])([aeiouvy]|[.?!]|$)',
         flags=re.IGNORECASE
     )
     if re.search(mcl_regex, verse.text):
@@ -406,7 +406,7 @@ def muta_cum_liquida(verse):
 
 def positional_lengthening(verse):
     pl_regex = re.compile(
-        r'[aeiouv](((([bcdfgjklmnprstvwxz]h?|(qu))\W*){2,})|[xz])',
+        r'[aeiouvy](((([bcdfgjklmnprstvwxz]h?|(qu))\W*){2,})|[xz])',
         flags=re.IGNORECASE
     )
     for match in re.finditer(pl_regex, verse.text):
@@ -439,9 +439,11 @@ def make_elisions(verse):
                     # Break the for and continue with the next reading.
                     break
 
-                m = re.search(r'[aeiouy][mh]*$', this_syllable.text)
+                m = re.search(r'[aeiouy][mh]*$', this_syllable.text,
+                              flags=re.IGNORECASE)
                 if m:
-                    if re.search(r'^h?[aeiouy]', next_syllable.text):
+                    if re.search(r'^h?[aeiouy]', next_syllable.text,
+                                 flags=re.IGNORECASE):
                         # Elision!
                         elision = Phenomenon(omitted=m.group())
                         this_syllable.phenomena['elision'] = elision