1 files changed, 125 insertions, 0 deletions
diff --git a/Lib/dos_8x3/tracebac.py b/Lib/dos_8x3/tracebac.py
new file mode 100755
index 0000000..8d2dfdc
--- /dev/null
+++ b/Lib/dos_8x3/tracebac.py
@@ -0,0 +1,125 @@
+# Format and print Python stack traces
+
+import linecache
+import string
+import sys
+import types
+
+def _print(file, str='', terminator='\n'):
+	file.write(str+terminator)
+	
+
+def print_tb(tb, limit=None, file=None):
+	if not file:
+		file = sys.stderr
+	if limit is None:
+		if hasattr(sys, 'tracebacklimit'):
+			limit = sys.tracebacklimit
+	n = 0
+	while tb is not None and (limit is None or n < limit):
+		f = tb.tb_frame
+		lineno = tb.tb_lineno
+		co = f.f_code
+		filename = co.co_filename
+		name = co.co_name
+		_print(file,
+		       '  File "%s", line %d, in %s' % (filename,lineno,name))
+		line = linecache.getline(filename, lineno)
+		if line: _print(file, '    ' + string.strip(line))
+		tb = tb.tb_next
+		n = n+1
+
+def format_tb(tb, limit = None):
+	list = []
+	for filename, lineno, name, line in extract_tb(tb, limit):
+		item = '  File "%s", line %d, in %s\n' % (filename,lineno,name)
+		if line:
+			item = item + '    %s\n' % string.strip(line)
+		list.append(item)
+	return list
+
+def extract_tb(tb, limit = None):
+	if limit is None:
+		if hasattr(sys, 'tracebacklimit'):
+			limit = sys.tracebacklimit
+	list = []
+	n = 0
+	while tb is not None and (limit is None or n < limit):
+		f = tb.tb_frame
+		lineno = tb.tb_lineno
+		co = f.f_code
+		filename = co.co_filename
+		name = co.co_name
+		line = linecache.getline(filename, lineno)
+		if line: line = string.strip(line)
+		else: line = None
+		list.append(filename, lineno, name, line)
+		tb = tb.tb_next
+		n = n+1
+	return list
+
+
+def print_exception(etype, value, tb, limit=None, file=None):
+	if not file:
+		file = sys.stderr
+	if tb:
+		_print(file, 'Traceback (innermost last):')
+		print_tb(tb, limit, file)
+	lines = format_exception_only(etype, value)
+	for line in lines[:-1]:
+		_print(file, line, ' ')
+	_print(file, lines[-1], '')
+
+def format_exception(etype, value, tb, limit = None):
+	if tb:
+		list = ['Traceback (innermost last):\n']
+		list = list + format_tb(tb, limit)
+	list = list + format_exception_only(etype, value)
+	return list
+
+def format_exception_only(etype, value):
+	list = []
+	if type(etype) == types.ClassType:
+		stype = etype.__name__
+	else:
+		stype = etype
+	if value is None:
+		list.append(str(stype) + '\n')
+	else:
+		if etype is SyntaxError:
+			try:
+				msg, (filename, lineno, offset, line) = value
+			except:
+				pass
+			else:
+				if not filename: filename = "<string>"
+				list.append('  File "%s", line %d\n' %
+					    (filename, lineno))
+				i = 0
+				while i < len(line) and \
+				      line[i] in string.whitespace:
+					i = i+1
+				list.append('    %s\n' % string.strip(line))
+				s = '    '
+				for c in line[i:offset-1]:
+					if c in string.whitespace:
+						s = s + c
+					else:
+						s = s + ' '
+				list.append('%s^\n' % s)
+				value = msg
+		list.append('%s: %s\n' % (str(stype), str(value)))
+	return list
+
+
+def print_exc(limit=None, file=None):
+	if not file:
+		file = sys.stderr
+	print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback,
+			limit, file)
+
+def print_last(limit=None, file=None):
+	if not file:
+		file = sys.stderr
+	print_exception(sys.last_type, sys.last_value, sys.last_traceback,
+			limit, file)