Create gen-glyph-list.py

gen-glyph-list.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+
+import sys
+import os
+import re
+
+def write_glyph_list(content: str) -> int:
+    out_file_name = "glyph-list.txt"
+    try:
+        with open(out_file_name, "w") as out:
+            out.write(content)
+        print(f"Writing {out_file_name} done.")
+        return 0
+    except FileNotFoundError:
+        print("Directory not found", file = sys.stderr)
+        return 2
+    except PermissionError:
+        print("Permission denied", file = sys.stderr)
+        return 1
+    except OSError as error:
+        print(f"Error writing file: {error}", file = sys.stderr)
+        return 1
+
+def main():
+    if len(sys.argv) != 2:
+        print(f"Usage: {sys.argv[0]} INPUT", file = sys.stderr)
+        return 2
+    try:
+        fn = sys.argv[1]
+        with open(fn) as spline_font_db:
+            print(f"File {os.path.basename(fn)} found.")
+            data = spline_font_db.read()
+            pattern = r"^StartChar:\s*([\w\.\-]+?)\s*\nEncoding:\s*(\d+)\s+-?\d+\s+\d+$"
+            matches = re.findall(pattern, data, re.M)
+            glyph_cnt = len(matches)
+
+            if glyph_cnt < 1:
+                print(f"No glyphs found!")
+                return 1
+
+            glyph_list = f"count: {glyph_cnt}\n"
+            glyph_list += "UniCode  | Dec   | S | Name\n"
+            glyph_list += "---------+-------+---+-----------------\n"
+            for match in matches:
+                uni = f"\\U+{int(match[1]):04X}"
+                dec = f"{int(match[1]):5}"
+                sym = f"{chr(int(match[1]))}"
+                name = match[0]
+                glyph_list += f"{uni:8} | {dec} | {sym} | {name}\n"
+
+            return write_glyph_list(glyph_list)
+
+    except FileNotFoundError:
+        print(f"File {os.path.basename(fn)} does not exist.", file=sys.stderr)
+        return 2
+    except PermissionError:
+        print(f"Permission denied for {os.path.basename(fn)}!", file=sys.stderr)
+        return 1
+
+if __name__ == "__main__":
+    raise SystemExit(main())