Current state of mal for Clojure West lighting talk.

1 files changed, 32 insertions, 0 deletions

diff --git a/python/step1_read_print.py b/python/step1_read_print.py
new file mode 100644
index 0000000..165dfa3
--- /dev/null
+++ b/python/step1_read_print.py
@@ -0,0 +1,32 @@
+import sys, traceback
+import mal_readline
+from mal_types import (pr_str, sequential_Q, symbol_Q, coll_Q, list_Q,
+                       vector_Q, hash_map_Q, new_symbol, new_function,
+                       new_list, new_vector, new_hash_map, Env, types_ns)
+from reader import (read_str, Blank)
+
+# read
+def READ(str):
+    return read_str(str)
+
+# eval
+def EVAL(ast, env):
+    #print("EVAL %s" % ast)
+    return ast
+
+def PRINT(exp):
+    return pr_str(exp)
+
+# repl
+def REP(str):
+    return PRINT(EVAL(READ(str), {}))
+
+while True:
+    try:
+        line = mal_readline.readline("user> ")
+        if line == None: break
+        if line == "": continue
+        print(REP(line))
+    except Blank: continue
+    except Exception as e:
+        print "".join(traceback.format_exception(*sys.exc_info()))