1 files changed, 173 insertions, 0 deletions
diff --git a/modules/freetype2/builds/meson/parse_modules_cfg.py b/modules/freetype2/builds/meson/parse_modules_cfg.py
new file mode 100644
index 0000000000..6030bb2098
--- /dev/null
+++ b/modules/freetype2/builds/meson/parse_modules_cfg.py
@@ -0,0 +1,173 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020-2023 by
+# David Turner, Robert Wilhelm, and Werner Lemberg.
+#
+# This file is part of the FreeType project, and may only be used, modified,
+# and distributed under the terms of the FreeType project license,
+# LICENSE.TXT.  By continuing to use, modify, or distribute this file you
+# indicate that you have read the license and understand and accept it
+# fully.
+
+"""Parse modules.cfg and dump its output either as ftmodule.h or a list of
+base extensions.
+"""
+
+from __future__ import print_function
+
+import argparse
+import os
+import re
+import sys
+
+# Expected input:
+#
+#  ...
+#  FONT_MODULES += <name>
+#  HINTING_MODULES += <name>
+#  RASTER_MODULES += <name>
+#  AUX_MODULES += <name>
+#  BASE_EXTENSIONS += <name>
+#  ...
+
+
+def parse_modules_cfg(input_file):
+
+    lists = {
+        "FONT_MODULES": [],
+        "HINTING_MODULES": [],
+        "RASTER_MODULES": [],
+        "AUX_MODULES": [],
+        "BASE_EXTENSIONS": [],
+    }
+
+    for line in input_file.splitlines():
+        line = line.rstrip()
+        # Ignore empty lines and those that start with a comment.
+        if not line or line[0] == "#":
+            continue
+
+        items = line.split()
+        assert len(items) == 3 and items[1] == "+=", (
+            "Unexpected input line [%s]" % line
+        )
+        assert items[0] in lists, (
+            "Unexpected configuration variable name " + items[0]
+        )
+
+        lists[items[0]].append(items[2])
+
+    return lists
+
+
+def generate_ftmodule(lists):
+    result = "/* This is a generated file. */\n"
+    for driver in lists["FONT_MODULES"]:
+        if driver == "sfnt":  # Special case for the sfnt 'driver'.
+            result += "FT_USE_MODULE( FT_Module_Class, sfnt_module_class )\n"
+            continue
+
+        name = {
+            "truetype": "tt",
+            "type1": "t1",
+            "cid": "t1cid",
+            "type42": "t42",
+            "winfonts": "winfnt",
+        }.get(driver, driver)
+        result += (
+            "FT_USE_MODULE( FT_Driver_ClassRec, %s_driver_class )\n" % name
+        )
+
+    for module in lists["HINTING_MODULES"]:
+        result += (
+            "FT_USE_MODULE( FT_Module_Class, %s_module_class )\n" % module
+        )
+
+    for module in lists["RASTER_MODULES"]:
+        names = {
+            "raster": ("ft_raster1",),
+            "smooth": ("ft_smooth",),
+            "svg": ("ft_svg",),
+            "sdf": ("ft_sdf", "ft_bitmap_sdf"),
+        }.get(module)
+        for name in names:
+            result += (
+                "FT_USE_MODULE( FT_Renderer_Class, %s_renderer_class )\n" % name
+            )
+
+    for module in lists["AUX_MODULES"]:
+        if module in ("psaux", "psnames", "otvalid", "gxvalid"):
+            result += (
+                "FT_USE_MODULE( FT_Module_Class, %s_module_class )\n" % module
+            )
+
+    result += "/* EOF */\n"
+    return result
+
+
+def generate_main_modules(lists):
+    return "\n".join(
+        lists["FONT_MODULES"]
+        + lists["HINTING_MODULES"]
+        + lists["RASTER_MODULES"]
+    )
+
+
+def generate_aux_modules(lists):
+    return "\n".join(lists["AUX_MODULES"])
+
+
+def generate_base_extensions(lists):
+    return "\n".join(lists["BASE_EXTENSIONS"])
+
+
+def main():
+    parser = argparse.ArgumentParser(description=__doc__)
+
+    parser.add_argument(
+        "--format",
+        required=True,
+        choices=(
+            "ftmodule.h",
+            "main-modules",
+            "aux-modules",
+            "base-extensions-list",
+        ),
+        help="Select output format.",
+    )
+
+    parser.add_argument(
+        "input",
+        metavar="CONFIGURE_RAW",
+        help="The input configure.raw file to parse.",
+    )
+
+    parser.add_argument("--output", help="Output file (default is stdout).")
+
+    args = parser.parse_args()
+    with open(args.input) as f:
+        input_data = f.read()
+
+    lists = parse_modules_cfg(input_data)
+
+    if args.format == "ftmodule.h":
+        result = generate_ftmodule(lists)
+    elif args.format == "main-modules":
+        result = generate_main_modules(lists)
+    elif args.format == "aux-modules":
+        result = generate_aux_modules(lists)
+    elif args.format == "base-extensions-list":
+        result = generate_base_extensions(lists)
+    else:
+        assert False, "Invalid output format!"
+
+    if args.output:
+        with open(args.output, "w") as f:
+            f.write(result)
+    else:
+        print(result)
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())