Getting to the way it's supposed to be!

modules/ufbx/misc/macro_expander.py

@@ -0,0 +1,75 @@
+import argparse
+import re
+
+parser = argparse.ArgumentParser(usage="macro_expander.py macro files")
+parser.add_argument("macro")
+parser.add_argument("files", nargs="*")
+argv = parser.parse_args()
+
+macro_lines = []
+macro_params = []
+
+RE_NEWLINE = re.compile(r"\n")
+RE_DEF = re.compile(f"\n\s*#define\\s+{re.escape(argv.macro)}\s*\\(([^)]*)\\)\s*(.*)\\\\\s*\r?\n", re.M)
+RE_LINE = re.compile(r"\t?(.*?)\s*(\\?)\r?\n", re.M)
+RE_USE = re.compile(f"{re.escape(argv.macro)}\s*\\(", re.M)
+
+for path in argv.files:
+    with open(path, "rt") as f:
+        text = f.read()
+
+    lineno = 1
+    linestart = 0
+    pos = 0
+    while True:
+        if not macro_lines:
+            m = RE_DEF.search(text, pos)
+            if m:
+                macro_params = [a.strip() for a in m.group(1).split(",")]
+                first_line = m.group(2).strip()
+                if first_line:
+                    macro_lines.append(first_line)
+                
+                pos = m.end()
+                while True:
+                    m = RE_LINE.match(text, pos)
+                    if not m: break
+                    pos = m.end()
+                    macro_lines.append(m.group(1))
+                    if not m.group(2): break
+        else:
+            m = RE_USE.search(text, pos)
+            if not m: break
+
+            lineno += sum(1 for _ in RE_NEWLINE.finditer(text, linestart, m.start()))
+            linestart = m.start()
+
+            tlen = len(text)
+            args = [[]]
+            level = 0
+            pos = m.end()
+            while pos < tlen:
+                c = text[pos]
+                if c == "(":
+                    level += 1
+                    args[-1].append(c)
+                elif c == ")":
+                    level -= 1
+                    if level < 0: break
+                    args[-1].append(c)
+                elif c == "," and level == 0:
+                    args.append([])
+                else:
+                    args[-1].append(c)
+                pos += 1
+            args = ["".join(a).strip() for a in args]
+
+            print()
+            print(f"-- {path}:{lineno}")
+            for param, arg in zip(macro_params, args):
+                print(f"#define {param} {arg}")
+            for line in macro_lines:
+                print(line)
+            for param in macro_params:
+                print(f"#undef {param}")
+