06-15-2010
Extracting parts from an absolute path
Hi,
How can I extract parts from an absolute path?
For example :
The absolute path is /dir1/dir2/dir3/dir4/dir5.I need the relative path starting with directory given as parameter : for instance if the parameter is dir3 then the result should be dir3/dir4/dir5
I need generic solution independent of the depth of the directory structure.
Any ideas?
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LEARN ABOUT DEBIAN
ns_homepath
Ns_Pathname(3aolserver) AOLserver Library Procedures Ns_Pathname(3aolserver)
__________________________________________________________________________________________________________________________________________________
NAME
Ns_HomePath, Ns_LibPath, Ns_MakePath, Ns_ModulePath, Ns_NormalizePath, Ns_PathIsAbsolute - Pathname procedures
SYNOPSIS
#include "ns.h"
char *
Ns_HomePath(Ns_DString *dest, ...)
char *
Ns_LibPath(Ns_DString *dest, ...)
char *
Ns_MakePath(Ns_DString *dest, ...)
char *
Ns_ModulePath(Ns_DString *dest, char *server, char *module, ...)
char *
Ns_NormalizePath(Ns_DString *dsPtr, char *path)
int
Ns_PathIsAbsolute(char *path)
_________________________________________________________________
DESCRIPTION
These functions operate on file pathnames. They work with Unix and Windows pathnames on their respective hosts.
Ns_HomePath(dest, ...)
Construct a path name relative to the home directory of the server. The full path is constructed by appending the library directory
followed by each of the variable number of string elements after the dest argument. The elements will be separated by a / charac-
ter. The list must be terminated with a NULL string.
Ns_LibPath(dest, ...)
Construct a path name relative to the library directory of the server, normally the lib/ subdirectory of the home directory. The
full path is constructed by appending the library directory followed by each of the variable number of string elements after the
dest argument. The elements will be separated by a / character. The list must be terminated with a NULL string.
Ns_MakePath(dest, ...)
Construct a path name from a list of path elements. The Ns_MakePath function constructs a path name by appending a list of path ele-
ments to the given Ns_DString. The path elements are separated by single slashes, and the resulting path name is appended to the
given Ns_DString. The last argument needs to be NULL to indicate the end of the argument list.
Ns_ModulePath(dest, char *server, char *module, ...)
Construct a server and/or module specific pathname relative to the server home directory. The path in constructed by first append-
ing the server home directory. Next, if the server argument is not NULL, "server/servere appended to the destination and if the
module argument is not NULL, "module/module" will be appended. Finally, all other string elements, if any, will be appended to the
destination with separating / characters. The list must be terminated with a NULL string.
Ns_NormalizePath(dsPtr, path)
Normalize a path name. This function removes any extraneous slashes from the path and resolves "." and ".." references. The result
is appended to the given Ns_DString. The following code appends "/dog" to the Ns_DString:
Ns_NormalizePath(&ds,
"/dog/cat/../../rat/../../dog//mouse/..");
Ns_PathIsAbsolute(path)
Check for an absolute path name. Return NS_TRUE if the path is absolute and NS_FALSE otherwise. Under Unix, an absolute path starts
with a "/". On Windows, it starts with a drive letter followed immediately by a ":".
SEE ALSO
nsd(1), info(n)
KEYWORDS
AOLserver 4.0 Ns_Pathname(3aolserver)