Added parseLrcLine()

utils.py

@@ -2,6 +2,8 @@
 A set of common utilities.
 """
 
+import re
+
 def inputYN(text: str, default: bool=None):
     """
     Prompty the user with a yes/no prompt.
@@ -20,3 +22,28 @@ def inputYN(text: str, default: bool=None):
             return False
         if default is not None and i == '':
             return default
+
+def parseLrcLine(lrcLine: str) -> [float, str]:
+    """
+    Parses a line from an lrc file.
+    Turns "[00:36.21] If you decide to stay" into
+    [36.21, 'If you decide to stay'].
+
+    Args:
+        lrcLine (str): The single line from the lrc file.
+    
+    Returns:
+        float: How many seconds into the song the lyric is.
+        str: The lytic.
+    """
+
+    t = None
+
+    if re.search(r'^\[[0-9][0-9]:[0-9][0-9](\.[0-9][0-9])?\].*$', lrcLine):
+        timeStamp = lrcLine[1:].split(']')[0]
+        minutes, seconds = timeStamp.split(':')
+        minutes, seconds = (int(minutes), float(seconds))
+        t = minutes * 60 + seconds
+        lrcLine = ']'.join(lrcLine.split(']')[1:]).strip()
+
+    return t, lrcLine