From 5b52ee1afa7c1127c25f255b03fbaa79f8cdaa1c Mon Sep 17 00:00:00 2001
From: Feufochmar <feufochmar.gd@gmail.com>
Date: Sat, 23 Jun 2018 00:24:55 +0200
Subject: [PATCH] Ignore stress in rulemaker if all vowels of a phonology is
 tagged unstressed

---
 py-phonagen/phonagen.py | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/py-phonagen/phonagen.py b/py-phonagen/phonagen.py
index 4a44f18..f45dfe6 100644
--- a/py-phonagen/phonagen.py
+++ b/py-phonagen/phonagen.py
@@ -229,6 +229,15 @@ class Phonology:
         phonemeList.append(id)
     return phonemeList
 
+  def hasStressedVowels(self):
+    """Check if all vowels are tagged #unstressed"""
+    hasStressed = False
+    for id in self.entries:
+      if self.isNucleus(id) and self.isInStressedSyllables(id):
+        hasStressed = True
+        break
+    return hasStressed
+
 class Distribution:
   """Discrete distribution"""
   def __init__(self):
@@ -552,7 +561,7 @@ class RuleGenerator(Generator):
     # Step 1: Generate the word rules based on the min and max number of syllables, and the presence of stress
     stressId = phonology.getStress()
     syllableBreakId = phonology.getSyllableBreak()
-    isStressed = stressPosition != 0
+    isStressed = (stressPosition != 0) and phonology.hasStressedVowels()
     # Add the 'word' rule, initialized with an empty distribution
     self.rules.update({'word': Distribution()})
     # Add the syllable rules and word patterns
@@ -578,7 +587,7 @@ class RuleGenerator(Generator):
         nbSyllables = nbMiddleSyllables + 2
         wordPattern = []
         for position in range(1, nbSyllables + 1):
-          isStressPosition = RuleGenerator.isStressPosition(position, nbSyllables, stressPosition)
+          isStressPosition = isStressed and RuleGenerator.isStressPosition(position, nbSyllables, stressPosition)
           # add syllable separator
           if isStressPosition:
             wordPattern.append(stressId)