add

ccxt/static_dependencies/lark/tools/serialize.py

@@ -0,0 +1,32 @@
+import sys
+import json
+
+from lark.grammar import Rule
+from lark.lexer import TerminalDef
+from lark.tools import lalr_argparser, build_lalr
+
+import argparse
+
+argparser = argparse.ArgumentParser(prog='python -m lark.tools.serialize', parents=[lalr_argparser],
+                                    description="Lark Serialization Tool - Stores Lark's internal state & LALR analysis as a JSON file",
+                                    epilog='Look at the Lark documentation for more info on the options')
+
+
+def serialize(lark_inst, outfile):
+    data, memo = lark_inst.memo_serialize([TerminalDef, Rule])
+    outfile.write('{\n')
+    outfile.write('  "data": %s,\n' % json.dumps(data))
+    outfile.write('  "memo": %s\n' % json.dumps(memo))
+    outfile.write('}\n')
+
+
+def main():
+    if len(sys.argv)==1:
+        argparser.print_help(sys.stderr)
+        sys.exit(1)
+    ns = argparser.parse_args()
+    serialize(*build_lalr(ns))
+
+
+if __name__ == '__main__':
+    main()