Initial commit

ocxparser.py

@@ -0,0 +1,61 @@
+import os
+import re
+
+from dataclasses import Glyph
+
+offset = ord('R')
+
+
+def generate_glyphs():
+    """Translates the .ocX files to a dictionary containing every glyph's information.
+
+    The file extension begins with .oc1 and goes up to .oc4.
+    Returns a dictionary where the key is the Hershey number and the value is the glyph information.
+    """
+
+    print('\nReading .ocX files')
+    folder = 'modsources'
+    result = {}
+
+    for filename in os.listdir(folder):
+        if not (re.match(r'.+\.oc\d', filename)):
+            continue
+        with open(os.path.join(folder, filename)) as file:
+            print(f'Reading {filename}')
+            for line in _iterate_file(file):
+                glyph = _generate_glyph(line)
+                result[glyph.number] = glyph
+    return result
+
+
+def _iterate_file(file):
+    # Some glyphs use more than one line.
+    # Buffer the lines until the next glyph begins
+    glyph = []
+    for line in file:
+        # Each glyph begins with a number left padded with spaces
+        if re.match(r'^[ \d]{5}', line) and glyph:
+            # Last glyph finished. Yield it.
+            yield _remove_line_breaks(''.join(glyph))
+            glyph = []
+        glyph.append(line)
+
+
+def _remove_line_breaks(string):
+    return string.replace('\n', '').replace('\r', '')
+
+
+def _generate_glyph(line):
+    number = int(line[0:5].strip())
+    start = ord(line[8]) - offset
+    end = ord(line[9]) - offset
+
+    coordinates = []
+    for x, y in zip(line[10::2], line[11::2]):
+        if x == ' ' and y == 'R':
+            # Space + R is a pen up operation
+            coordinates.append(None)
+        else:
+            coordinates.append((ord(x) - offset, ord(y) - offset))
+
+    return Glyph(number, start, end, coordinates)