Added two modules for ASCII characters and a simple editing form (ESR)

1 files changed, 102 insertions, 0 deletions

diff --git a/Lib/curses/ascii.py b/Lib/curses/ascii.py
new file mode 100644
index 0000000..b53c91c
--- /dev/null
+++ b/Lib/curses/ascii.py
@@ -0,0 +1,102 @@
+#
+# ascii.py -- constants and memembership tests for ASCII characters
+#
+
+NUL	= 0x00	# ^@
+SOH	= 0x01	# ^A
+STX	= 0x02	# ^B
+ETX	= 0x03	# ^C
+EOT	= 0x04	# ^D
+ENQ	= 0x05	# ^E
+ACK	= 0x06	# ^F
+BEL	= 0x07	# ^G
+BS	= 0x08	# ^H
+TAB	= 0x09	# ^I
+HT	= 0x09	# ^I
+LF	= 0x0a	# ^J
+NL	= 0x0a	# ^J
+VT	= 0x0b	# ^K
+FF	= 0x0c	# ^L
+CR	= 0x0d	# ^M
+SO	= 0x0e	# ^N
+SI	= 0x0f	# ^O
+DLE	= 0x10	# ^P
+DC1	= 0x11	# ^Q
+DC2	= 0x12	# ^R
+DC3	= 0x13	# ^S
+DC4	= 0x14	# ^T
+NAK	= 0x15	# ^U
+SYN	= 0x16	# ^V
+ETB	= 0x17	# ^W
+CAN	= 0x18	# ^X
+EM	= 0x19	# ^Y
+SUB	= 0x1a	# ^Z
+ESC	= 0x1b	# ^[
+FS	= 0x1c	# ^\
+GS	= 0x1d	# ^]
+RS	= 0x1e	# ^^
+US	= 0x1f	# ^_
+SP	= 0x20	# space
+DEL	= 0x7f	# delete
+
+controlnames = [
+"NUL", "SOH", "STX", "ETX", "EOT", "ENQ", "ACK", "BEL",
+"BS",  "HT",  "LF",  "VT",  "FF",  "CR",  "SO",  "SI",
+"DLE", "DC1", "DC2", "DC3", "DC4", "NAK", "SYN", "ETB",
+"CAN", "EM",  "SUB", "ESC", "FS",  "GS",  "RS",  "US",
+"SP"
+]
+
+def _ctoi(c):
+    if type(c) == type(""):
+        return ord(c)
+    else:
+        return c
+
+def isalnum(c): return isalpha(c) or isdigit(c)
+def isalpha(c): return isupper(c) or islower(c)
+def isascii(c): return _ctoi(c) <= 127		# ?
+def isblank(c): return _ctoi(c) in (8,32)
+def iscntrl(c): return _ctoi(c) <= 31
+def isdigit(c): return _ctoi(c) >= 48 and _ctoi(c) <= 57
+def isgraph(c): return _ctoi(c) >= 33 and _ctoi(c) <= 126
+def islower(c): return _ctoi(c) >= 97 and _ctoi(c) <= 122
+def isprint(c): return _ctoi(c) >= 32 and _ctoi(c) <= 126
+def ispunct(c): return _ctoi(c) != 32 and not isalnum(c)
+def isspace(c): return _ctoi(c) in (12, 10, 13, 9, 11)
+def isupper(c): return _ctoi(c) >= 65 and _ctoi(c) <= 90
+def isxdigit(c): return isdigit(c) or \
+    (_ctoi(c) >= 65 and _ctoi(c) <= 70) or (_ctoi(c) >= 97 and _ctoi(c) <= 102)
+def isctrl(c): return _ctoi(c) < 32
+def ismeta(c): return _ctoi(c) > 127
+
+def ascii(c):
+    if type(c) == type(""):
+        return chr(_ctoi(c) & 0x7f)
+    else:
+        return _ctoi(c) & 0x7f
+
+def ctrl(c):
+    if type(c) == type(""):
+        return chr(_ctoi(c) & 0x1f)
+    else:
+        return _ctoi(c) & 0x1f
+
+def alt(c):
+    if type(c) == type(""):
+        return chr(_ctoi(c) | 0x80)
+    else:
+        return _ctoi(c) | 0x80
+
+def unctrl(c):
+    bits = _ctoi(c)
+    if bits == 0x7f:
+        rep = "^?"
+    elif bits & 0x20:
+        rep = chr((bits & 0x7f) | 0x20)
+    else:
+        rep = "^" + chr(((bits & 0x7f) | 0x20) + 0x20)
+    if bits & 0x80:
+        return "!" + rep
+    return rep
+