Initial cursory reader attempt

pyembroidery/PltReader.py

@@ -1,5 +1,36 @@
+import re
+
 from .EmbFunctions import *
 
+PU_COMMAND = re.compile(r"PU\s*([0-9]+)\s*,\s*([0-9]+)")
+PD_COMMAND = re.compile(r"PD\s*([0-9]+)\s*,\s*([0-9]+)")
+SP_COMMAND = re.compile(r"SP\s*([0-9]+)\s*")
+
 
 def read(f, out, settings=None):
-    pass
+    data = f.read()
+    data = str(data, "utf8")
+    lines = data.split(";")
+    for line in lines:
+        line = line.strip()
+        match = PU_COMMAND.match(line)
+        if match:
+            x = int(match.group(1)) / 4.0
+            y = int(match.group(2)) / 4.0
+            out.move_abs(x, y)
+            out.stitch_abs(x, y)
+
+        match = PD_COMMAND.match(line)
+        if match:
+            x = int(match.group(1)) / 4.0
+            y = int(match.group(2)) / 4.0
+            out.stitch_abs(x, y)
+
+        match = SP_COMMAND.match(line)
+        if match:
+            pen = int(match.group(1))
+            out.needle_change(pen)
+
+        if line == "EN":
+            print("Done")
+            break