cockscomb · April 23, 2013 11:12 · Apr 23, 2013
diff --git a/remove-empty-glyphs.py b/remove-empty-glyphs.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import fontforge
+import argparse
+
+
+def remove_empty_glyphs(input, output):
+    font = fontforge.open(input)
+    code_points = []
+    for glyph in font.glyphs():
+        # 実際には glyph のデータが空になっていることがある
+        if glyph.left_side_bearing != 0.0 and glyph.right_side_bearing != 0.0:
+            pass
+        else:
+            font.removeGlyph(glyph)
+    font.generate(output)
+    font.close()
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Make unicode-range from font.')
+    parser.add_argument('input', nargs=1, help='path to input font file')
+    parser.add_argument('output', nargs=1, help='path to output font file')
+    args = parser.parse_args()
+    input_file_path = args.input[0]
+    output_file_path = args.output[0]
+
+
+    remove_empty_glyphs(input_file_path, output_file_path)
diff --git a/unicode-range-maker.py b/unicode-range-maker.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import fontforge
+import argparse
+
+
+def _code_points_from_font(filepath):
+    font = fontforge.open(filepath)
+    code_points = []
+    for glyph in font.glyphs():
+        point = glyph.unicode
+        # unicode が見つからないとき -1
+        # 実際には glyph のデータが空になっていることがあるから side_bearing が 0.0 のものを除く
+        if point != -1 and glyph.left_side_bearing != 0.0 and glyph.right_side_bearing != 0.0:
+            code_points.append(point)
+    return sorted(code_points)
+
+
+def _code_ranges_from_code_points(code_points):
+    code_ranges = []
+    last_point = code_points[0]
+    code_ranges.append([last_point])
+    for point in code_points:
+        if point - last_point > 1 and point != last_point:
+            # 連続していない
+            code_ranges[-1].append(last_point)
+            code_ranges.append([point])
+        else:
+            # 連続している
+            pass
+        last_point = point
+    return code_ranges
+
+
+def unicode_range_from_font(filepath):
+    code_points = _code_points_from_font(filepath)
+    code_ranges = _code_ranges_from_code_points(code_points)
+
+    unicode_ranges = []
+    for code_range in code_ranges:
+        if len(code_range) > 1:
+            unicode_ranges.append('U+{0:X}-{1:X}'.format(code_range[0], code_range[-1]))
+        elif len(code_range) == 1:
+            unicode_ranges.append('U+{0:X}'.format(code_range[0]))
+
+    unicode_range = ', '.join(unicode_ranges)
+    unicode_range = 'unicode-range: {0};'.format(unicode_range)
+
+    return unicode_range
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Make unicode-range from font.')
+    parser.add_argument('font', nargs=1, help='path to font file')
+    filepath = parser.parse_args().font[0]
+
+    unicode_range = unicode_range_from_font(filepath)
+    print unicode_range