--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gs2c.py	Mon Jun 06 04:09:34 2016 +0000
@@ -0,0 +1,135 @@
+# gs2 compiler (version 0.2)
+# (c) nooodl 2014
+
+import re
+import struct
+import sys
+
+if sys.platform == "win32":
+    import os, msvcrt
+    msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+
+mnemonics = {}
+with open('gs2.py') as f:
+    for line in f:
+        if '#=' in line:
+            a, b = line.split('#=')
+            a = re.findall(r'\\x(..)', a.strip())
+            b = b.strip().split(', ')
+            assert len(a) == len(b)
+            for i, j in zip(a, b):
+                for k in j.split():
+                    mnemonics[k] = chr(int(i, 16))
+
+mnemonics["'"] = '\xe0'  # block1
+
+for i in xrange(16):
+    mnemonics['@%d' % i]    = chr(0xA0 | i)
+    mnemonics['junk%d' % i] = chr(0xA0 | i)
+for i, c in enumerate('abcd'):
+    mnemonics['save-%s' % c] = chr(0xC8 | i)
+    mnemonics['pop-%s' % c]  = chr(0xCC | i)
+    mnemonics['push-%s' % c] = chr(0xD0 | i)
+    mnemonics['nip-%s' % c]  = chr(0xD4 | i)
+    mnemonics['tuck-%s' % c] = chr(0xD8 | i)
+    mnemonics['show-%s' % c] = chr(0xDC | i)
+for i in xrange(8):
+    mnemonics['b%d'      % (i+1)] = chr(0xE0 | i)
+    mnemonics['block%d'  % (i+1)] = chr(0xE0 | i)
+    mnemonics['m%d'      % (i+1)] = chr(0xE8 | i)
+    mnemonics['map%d'    % (i+1)] = chr(0xE8 | i)
+    mnemonics['f%d'      % (i+1)] = chr(0xF0 | i)
+    mnemonics['filter%d' % (i+1)] = chr(0xF0 | i)
+    if 0xF8 | i < 0xFD:
+        mnemonics['t%d'      % (i+1)] = chr(0xF8 | i)
+        mnemonics['both%d'   % (i+1)] = chr(0xF8 | i)
+
+def compile_num(i):
+    if 0 <= i <= 10:
+        return chr(i + 0x10)
+    elif i == 100:
+        return '\x1b'
+    elif i == 1000:
+        return '\x1c'
+    elif i == 16:
+        return '\x1d'
+    elif i == 64:
+        return '\x1e'
+    elif i == 256:
+        return '\x1f'
+
+    elif 0x00 <= i <= 0xFF:
+        return '\x01' + struct.pack('B', i)
+    elif -0x8000 <= i <= 0x7FFF:
+        return '\x02' + struct.pack('<h', i)
+    elif -0x80000000 <= i <= 0x7FFFFFFF:
+        return '\x03' + struct.pack('<l', i)
+    else:
+        raise Exception("couldn't compile number: %s" % i)
+
+def compile_gs2(s):
+    s = '\n'.join(l for l in s.split('\n') if l and l[0] != '#')
+    tokens = re.findall(r'"[^"]*"|\S+', s)
+    string_mode = False
+    string_array = False
+    strings = []
+    output_code = []
+
+    for i in tokens:
+        # sys.stderr.write('[%s]\n' % i)
+        try:
+            v = compile_num(int(i))
+            output_code.append(v)
+            continue
+        except ValueError: pass
+
+        if i[0] == "'" and len(i) > 1:
+            v = compile_num(ord(i[1]))
+            output_code.append(v)
+        elif i == ')':
+            string_mode = False
+            s_open  = '\x04'
+            s_close = {
+                'regular': '\x05',
+                'array': '\x06',
+                'printf': '\x9b',
+                'regex-match': '\x9c',
+                'regex-sub': '\x9d',
+                'regex-find': '\x9e',
+                'regex-split': '\x9f',
+            }[string_type]
+            if len(strings) == 1 and len(strings[0]) == 1:
+                output_code.append('\x07' + strings[0])
+            else:
+                output_code.append(s_open + '\x07'.join(strings) + s_close)
+        elif string_mode or i[0] == '"':
+            if i[0] == '"':
+                if string_mode:
+                    strings.append(eval(i))
+                elif len(eval(i)) == 1:
+                    output_code.append('\x07' + eval(i))
+                else:
+                    output_code.append('\x04' + eval(i) + '\x05')
+            else:
+                strings.append(i)
+        elif i in ['(', 'w(', 'p(', 'm(', 's(', 'f(', 'v(']:
+            string_mode = True
+            string_type = {
+                '(': 'regular',
+                'w(': 'array',
+                'p(': 'printf',
+                'm(': 'regex-match',
+                's(': 'regex-sub',
+                'f(': 'regex-find',
+                'v(': 'regex-split',
+            }[i]
+            strings = []
+        elif i.lower() in mnemonics:
+            output_code.append(mnemonics[i.lower()])
+        else:
+            raise Exception('unknown symbol: ' + i)
+    # shortcut: strip leading \x04
+    return ''.join(output_code).lstrip('\x04')
+
+if __name__ == '__main__':
+    sys.stdout.write(compile_gs2(sys.stdin.read()))