Added emacs.py (for misc/py-connect.el).
posixpath.py: added undocumented expanndvars() (expands $VAR in string).
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index b178e67..d2bda10 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -230,3 +230,29 @@
return path
userhome = pwent[5]
return userhome + path[i:]
+
+
+# Expand paths containing shell variable substitutions.
+# This is done by piping it through the shell.
+# Shell quoting characters (\ " ' `) are protected by a backslash.
+# NB: a future version may avoid starting a subprocess and do the
+# substitutions internally. This may slightly change the syntax
+# for variables.
+
+def expandvars(path):
+ if '$' not in path:
+ return path
+ q = ''
+ for c in path:
+ if c in ('\\', '"', '\'', '`'):
+ c = '\\' + c
+ q = q + c
+ d = '!'
+ if q == d:
+ d = '+'
+ p = posix.popen('cat <<' + d + '\n' + q + '\n' + d + '\n', 'r')
+ res = p.read()
+ del p
+ if res[-1:] == '\n':
+ res = res[:-1]
+ return res