Add Syllable function

kefir/__init__.py

@@ -80,6 +80,7 @@
 from .subject import subject, locative, genitive
 from .predication import predicate, Copula
 from .functional import enum_values
+from .syllable import syllable
 
 def sentence(subject, predicate, delimiter=' '):
   return delimiter.join((subject, predicate))

kefir/syllable.py

@@ -0,0 +1,70 @@
+
+def syllable(word):
+    boundaries = get_syllable_boundaries(word)
+    result = []
+    for i in range(0,len(boundaries)-1):
+        result.append(word[boundaries[i]:boundaries[i+1]])
+    if len(boundaries) > 0:
+        result.append(word[boundaries[len(boundaries)-1]:])
+
+    return result
+
+def get_syllable_boundaries(word):
+    size = len(word)
+    boundary_indexes = []
+    last_index = size
+    index = 0
+    while last_index > 0:
+        letter_count = letter_count_for_last_syllable(word,last_index)
+        if letter_count == -1:
+            return [0]
+
+        boundary_indexes.append(last_index - letter_count)
+        index += 1
+        last_index -= letter_count
+    result = []
+    for i in range(0,index):
+        result.append(boundary_indexes[index - i - 1])
+    return result
+
+def is_vowel(character):
+    if character in "aeiıoöuü":
+        return True
+    return False
+
+def letter_count_for_last_syllable(chrs,end_index):
+    if end_index == 0:
+        return -1
+
+    if is_vowel(chrs[end_index - 1]):
+        if end_index == 1:
+            return 1
+        if is_vowel(chrs[end_index - 2]):
+            return 1
+        if end_index == 2:
+            return 2
+        if not is_vowel(chrs[end_index - 3]) and end_index == 3:
+            return 3
+        return 2
+    else :
+        if end_index == 1:
+            return -1
+        if is_vowel(chrs[end_index - 2]):
+            if end_index == 2 or is_vowel(chrs[end_index - 3]):
+                return 2
+            if end_index == 3 or is_vowel(chrs[end_index - 4]):
+                return 3
+            if end_index == 4:
+                return -1
+            if not is_vowel(chrs[end_index - 5]):
+                return 3
+            return 3
+        else:
+            if not is_vowel(chrs[end_index - 2]):
+                return -1
+            if end_index == 2 or not is_vowel(chrs[end_index - 2]):
+                return -1
+            if end_index > 3 and not is_vowel(chrs[end_index - 4]):
+                return 4
+            return 3
+