Update convert.py

convert.py

@@ -13,91 +13,48 @@ def convert_to_braille_unicode(str_input: str, path: str = "./braille_map.json")
 
 
 def braille_to_text(braille_unicode: str) -> str:
-    """
-    Convert braille unicode characters to readable text
-    Based on standard English Braille Grade 1 alphabet
-    """
-    # Braille to text mapping for basic alphabet
-    braille_to_text_map = {
-        # Basic alphabet (a-z)
-        '⠁': 'a', '⠃': 'b', '⠉': 'c', '⠙': 'd', '⠑': 'e',
-        '⠋': 'f', '⠛': 'g', '⠓': 'h', '⠊': 'i', '⠚': 'j',
-        '⠅': 'k', '⠇': 'l', '⠍': 'm', '⠝': 'n', '⠕': 'o',
-        '⠏': 'p', '⠟': 'q', '⠗': 'r', '⠎': 's', '⠞': 't',
-        '⠥': 'u', '⠧': 'v', '⠺': 'w', '⠭': 'x', '⠽': 'y',
-        '⠵': 'z',
-        
-        # Additional common braille patterns
-        '⠪': 'u',  # Alternative representation for 'u'
-        '⠳': 'ou', # Common digraph
-        '⠡': 'a',  # Alternative 'a' pattern
-        '⠣': 'b',  # Alternative 'b' pattern  
-        '⠧': 'v',  # Alternative 'v' pattern
-        '⠯': 'x',  # Alternative 'x' pattern
-        
-        # Common punctuation
-        '⠀': ' ',  # space
-        '⠲': '.', '⠂': ',', '⠖': ';', '⠒': ':', '⠦': '?',
-        '⠄': "'", '⠤': '-', '⠌': '/', 
-        '⠣': '(', '⠜': ')', 
-        
-        # Special indicators (will handle separately)
-        '⠼': '',   # number indicator (ignore in output)
-        '⠠': '',   # capital indicator (ignore in output)
+    # Grade 1 Braille map (one‐to‐one)
+    braille_map = {
+        '⠁':'a','⠃':'b','⠉':'c','⠙':'d','⠑':'e',
+        '⠋':'f','⠛':'g','⠓':'h','⠊':'i','⠚':'j',
+        '⠅':'k','⠇':'l','⠍':'m','⠝':'n','⠕':'o',
+        '⠏':'p','⠟':'q','⠗':'r','⠎':'s','⠞':'t',
+        '⠥':'u','⠧':'v','⠺':'w','⠭':'x','⠽':'y','⠵':'z',
+        '⠀':' ',  # blank
+        '⠲':'.','⠂':',','⠖':';','⠒':':','⠦':'?','⠄':"'",'⠤':'-','⠌':'/','⠣':'(','⠜':')'
     }
-    
-    # Numbers when preceded by ⠼
     number_map = {
-        '⠁': '1', '⠃': '2', '⠉': '3', '⠙': '4', '⠑': '5',
-        '⠋': '6', '⠛': '7', '⠓': '8', '⠊': '9', '⠚': '0'
+        '⠁':'1','⠃':'2','⠉':'3','⠙':'4','⠑':'5',
+        '⠋':'6','⠛':'7','⠓':'8','⠊':'9','⠚':'0'
     }
-    
-    result = ""
-    i = 0
+
+    result = []
     number_mode = False
     capitalize_next = False
-    
-    while i < len(braille_unicode):
-        char = braille_unicode[i]
-        
-        # Handle number indicator
-        if char == '⠼':
+
+    for ch in braille_unicode:
+        if ch == '⠼':  # number indicator
             number_mode = True
-            i += 1
             continue
-            
-        # Handle capital indicator
-        if char == '⠠':
+        if ch == '⠠':  # capital indicator
             capitalize_next = True
-            i += 1
             continue
-        
-        # Convert current character
-        if number_mode and char in number_map:
-            # Convert to numbers when in number mode
-            result += number_map[char]
-        elif char in braille_to_text_map:
-            text_char = braille_to_text_map[char]
-            if text_char:  # Only add non-empty characters
-                if capitalize_next and text_char.isalpha():
-                    result += text_char.upper()
-                    capitalize_next = False
-                else:
-                    result += text_char
-        else:
-            # Unknown braille character - try to handle it gracefully
-            # For debugging, you might want to see what character is causing issues
-            print(f"Unknown braille character: {char} (Unicode: {ord(char)})")
-            result += '?'  # placeholder for unknown characters
-            
-        # Reset number mode after space or punctuation
-        if char == '⠀' or char in '⠲⠂⠖⠒⠦⠄⠤⠌':
-            number_mode = False
-            
-        i += 1
-    
-    return result
 
+        if number_mode:
+            if ch in number_map:
+                result.append(number_map[ch])
+                continue
+            else:
+                number_mode = False
+
+        txt = braille_map.get(ch, '?')
+        if capitalize_next and txt.isalpha():
+            txt = txt.upper()
+            capitalize_next = False
+
+        result.append(txt)
+
+    return ''.join(result)
 
 def parse_xywh_and_class(boxes: torch.Tensor) -> list:
     """