cache line.strip() to speed up reading

mmllib/parser.py

@@ -53,14 +53,15 @@ def mml_file(path, _play=None, _barline=None, _mmltrk=None):
 
     with codecs.open(path, "r", "UTF-8") as mmlfile:
         for line in mmlfile:
-            if line.strip().startswith("#"):
+            line = line.strip()
+            if line.startswith("#"):
                 continue
-            elif line.strip() == "":
+            elif line == "":
                 vcount = 0
             else:
                 if len(vstrings) <= vcount:
                     vstrings.append("")
-                vstrings[vcount] += line.strip()
+                vstrings[vcount] += line
                 vcount += 1
 
     for vstring in vstrings:
@@ -82,24 +83,25 @@ def mml_file_meta(path):
 
     with codecs.open(path, "r", "UTF-8") as mmlfile:
         for line in mmlfile:
+            line = line.strip()
             if state == 0:
                 # Header fields
-                if line.strip() == "":
+                if line == "":
                     state = 1
-                elif line.strip().startswith("# ") and ":" in line:
-                    parts = line.strip()[1:].split(":")
+                elif line.startswith("# ") and ":" in line:
+                    parts = line[1:].split(":")
                     key = str(parts.pop(0))
                     value = ":".join(parts)
 
                     meta[key.strip().lower()] = value.strip()
             if state == 1:
                 # Skip first empty line (header/body separator)
-                if not line.strip() == "":
+                if not line == "":
                     state = 2
             if state == 2:
-                if line.strip().startswith("#"):
+                if line.startswith("#"):
                     continue
-                if line.strip() == "":
+                if line == "":
                     if not vcount:
                         # comment block preceding music
                         continue