1 files changed, 97 insertions, 0 deletions
diff --git a/tools/messages.py b/tools/messages.py
new file mode 100755
index 0000000..a8a1431
--- /dev/null
+++ b/tools/messages.py
@@ -0,0 +1,97 @@
+#!/usr/bin/env python3
+
+from sys import argv, stderr, exit
+from charmap import parse_charmap
+
+def err(s):
+    print("ERROR:", s.rstrip(), file=stderr)
+    exit(1)
+
+charmap, constants = parse_charmap(argv[1])
+
+filename = argv[2]
+
+def convert_message(message):
+    while True:
+        if message.endswith("\r\n"):
+            message = message[:-2]
+            continue
+        if message.endswith("\n"):
+            message = message[:-1]
+            continue
+        break
+
+    values = []
+    in_braces = False
+    constant = ""
+    for char in message:
+        if char == "{" and not in_braces:
+            in_braces = True
+            constant = ""
+            continue
+        if char == "}" and in_braces:
+            in_braces = False
+            if constant in constants:
+                values.append(constants[constant])
+            elif constant in charmap:
+                values.append(charmap[constant])
+            else:
+                err("%s: Unrecognized constant %s" % (filename, constant))
+            continue
+
+        if in_braces:
+            constant += char
+            continue
+
+        if char == "\r":
+            continue
+        if char == "\n":
+            values.append(0xfffe)
+            continue
+
+        if char in charmap:
+            values.append(charmap[char])
+        else:
+            err("%s: Unrecognized character '%s'" % (filename, char))
+
+    values.append(0xffff)
+    return "    dw" + ", ".join(["$%04x" % val for val in values])
+
+name = None
+message = None
+for i, line in enumerate(open(filename)):
+    if i == 0 and not line.startswith(".org"):
+        print("SECTION \"%s\", ROMX" % filename)
+
+    if line.startswith("#"):
+        continue
+
+    if line.startswith("[") and line.endswith("]\n"):
+        if name is not None or message is not None:
+            print("\n%s::" % name)
+            print(convert_message(message))
+        message = ""
+        name = line[1:-2]
+        continue
+
+    if line.startswith(".org "):
+        split = line.split(" ", 1)
+        if len(split) < 2:
+            continue
+        split = split[1].strip().split(":")
+        if len(split) != 2:
+            continue
+        bank = split[0]
+        addr = split[1]
+        if i != 0:
+            print()
+        print("SECTION \"%s %s:%s\", ROMX[$%s], BANK[$%s]" %
+                (filename, bank, addr, addr, bank))
+        continue
+
+    if message is not None:
+        message += line
+
+if name is not None and message is not None:
+    print("\n%s::" % name)
+    print(convert_message(message))