add hg and python

1 files changed, 71 insertions, 0 deletions

diff --git a/sys/lib/python/plat-riscos/rourl2path.py b/sys/lib/python/plat-riscos/rourl2path.py
new file mode 100644
index 000000000..7a8badf44
--- /dev/null
+++ b/sys/lib/python/plat-riscos/rourl2path.py
@@ -0,0 +1,71 @@
+"""riscos specific module for conversion between pathnames and URLs.
+Based on macurl2path.
+Do not import directly, use urllib instead."""
+
+import string
+import urllib
+import os
+
+__all__ = ["url2pathname","pathname2url"]
+
+__slash_dot = string.maketrans("/.", "./")
+
+def url2pathname(url):
+    """OS-specific conversion from a relative URL of the 'file' scheme
+    to a file system path; not recommended for general use."""
+    tp = urllib.splittype(url)[0]
+    if tp and tp <> 'file':
+        raise RuntimeError, 'Cannot convert non-local URL to pathname'
+    # Turn starting /// into /, an empty hostname means current host
+    if url[:3] == '///':
+        url = url[2:]
+    elif url[:2] == '//':
+        raise RuntimeError, 'Cannot convert non-local URL to pathname'
+    components = string.split(url, '/')
+    if not components[0]:
+        if '$' in components:
+            del components[0]
+        else:
+            components[0] = '$'
+    # Remove . and embedded ..
+    i = 0
+    while i < len(components):
+        if components[i] == '.':
+            del components[i]
+        elif components[i] == '..' and i > 0 and \
+                                  components[i-1] not in ('', '..'):
+            del components[i-1:i+1]
+            i -= 1
+        elif components[i] == '..':
+            components[i] = '^'
+            i += 1
+        elif components[i] == '' and i > 0 and components[i-1] <> '':
+            del components[i]
+        else:
+            i += 1
+    components = map(lambda x: urllib.unquote(x).translate(__slash_dot), components)
+    return '.'.join(components)
+
+def pathname2url(pathname):
+    """OS-specific conversion from a file system path to a relative URL
+    of the 'file' scheme; not recommended for general use."""
+    return urllib.quote('///' + pathname.translate(__slash_dot), "/$:")
+
+def test():
+    for url in ["index.html",
+                "/SCSI::SCSI4/$/Anwendung/Comm/Apps/!Fresco/Welcome",
+                "/SCSI::SCSI4/$/Anwendung/Comm/Apps/../!Fresco/Welcome",
+                "../index.html",
+                "bar/index.html",
+                "/foo/bar/index.html",
+                "/foo/bar/",
+                "/"]:
+        print '%r -> %r' % (url, url2pathname(url))
+    print "*******************************************************"
+    for path in ["SCSI::SCSI4.$.Anwendung",
+                 "PythonApp:Lib",
+                 "PythonApp:Lib.rourl2path/py"]:
+        print '%r -> %r' % (path, pathname2url(path))
+
+if __name__ == '__main__':
+    test()