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Added vfs_path_tokens_count() and vfs_path_tokens_get() functions

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...for easy work with vfs_path_t tokens.

Signed-off-by: Slava Zanko <slavazanko@gmail.com>
This commit is contained in:
Slava Zanko 2011-07-31 23:44:15 +03:00
parent bd970f29da
commit a34a3b3aa5
4 changed files with 420 additions and 5 deletions
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181
lib/vfs/path.c
View File

@ -515,7 +515,8 @@ vfs_path_from_str_uri_parser (char *path)
(element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
vpath->path = g_list_prepend (vpath->path, element);
if (real_vfs_prefix_start > path && *(real_vfs_prefix_start) == PATH_SEP)
if ((real_vfs_prefix_start > path && *(real_vfs_prefix_start) == PATH_SEP) ||
(real_vfs_prefix_start == path && *(real_vfs_prefix_start) != PATH_SEP))
*real_vfs_prefix_start = '\0';
else
*(real_vfs_prefix_start + 1) = '\0';
@ -535,6 +536,52 @@ vfs_path_from_str_uri_parser (char *path)
return vpath;
}
/* --------------------------------------------------------------------------------------------- */
/**
* Add element's class info to result string (such as VFS name, host, encoding etc)
* This function used as helper only in vfs_path_tokens_get() function
*
* @param element current path element
* @param ret_tokens total tikens for return
* @param element_tokens accumulated element-only tokens
*/
static void
vfs_path_tokens_add_class_info (vfs_path_element_t * element, GString * ret_tokens,
GString * element_tokens)
{
if (((element->class->flags & VFSF_LOCAL) == 0 || ret_tokens->len > 0)
&& element_tokens->len > 0)
{
char *url_str;
if (ret_tokens->len > 0 && ret_tokens->str[ret_tokens->len - 1] != PATH_SEP)
g_string_append_c (ret_tokens, PATH_SEP);
g_string_append (ret_tokens, element->vfs_prefix);
g_string_append (ret_tokens, VFS_PATH_URL_DELIMITER);
url_str = vfs_path_build_url_params_str (element);
if (*url_str != '\0')
{
g_string_append (ret_tokens, url_str);
g_string_append_c (ret_tokens, PATH_SEP);
}
g_free (url_str);
}
if (element->encoding != NULL)
{
if (ret_tokens->len > 0 && ret_tokens->str[ret_tokens->len - 1] != PATH_SEP)
g_string_append (ret_tokens, PATH_SEP_STR);
g_string_append (ret_tokens, VFS_ENCODING_PREFIX);
g_string_append (ret_tokens, element->encoding);
g_string_append (ret_tokens, PATH_SEP_STR);
}
g_string_append (ret_tokens, element_tokens->str);
}
/* --------------------------------------------------------------------------------------------- */
/*** public functions ****************************************************************************/
/* --------------------------------------------------------------------------------------------- */
@ -583,8 +630,8 @@ vfs_path_to_str_elements_count (const vfs_path_t * vpath, int elements_count)
{
char *url_str;
if (buffer->str[buffer->len - 1] != '/')
g_string_append_c (buffer, '/');
if (buffer->len == 0 || buffer->str[buffer->len - 1] != PATH_SEP)
g_string_append_c (buffer, PATH_SEP);
g_string_append (buffer, element->vfs_prefix);
g_string_append (buffer, VFS_PATH_URL_DELIMITER);
@ -1038,8 +1085,10 @@ vfs_path_deserialize (const char *data, GError ** error)
/* --------------------------------------------------------------------------------------------- */
/**
* Build vfs_path_t object from arguments.
*
* return newly allocated vfs_path_t object
*
* @param ... path tokens, terminated by NULL
*
* @return newly allocated vfs_path_t object
*/
vfs_path_t *
@ -1061,6 +1110,14 @@ vfs_path_build_filename (const char *first_element, ...)
}
/* --------------------------------------------------------------------------------------------- */
/**
* Append tokens to path object
*
* @param vpath path object
* @param ... NULL-terminated strings
*
* @return newly allocated path object
*/
vfs_path_t *
vfs_path_append_new (const vfs_path_t * vpath, const char *first_element, ...)
@ -1086,3 +1143,117 @@ vfs_path_append_new (const vfs_path_t * vpath, const char *first_element, ...)
}
/* --------------------------------------------------------------------------------------------- */
/**
* get tockens count in path.
*
* @param vpath path object
*
* @return count of tokens
*/
size_t
vfs_path_tokens_count (const vfs_path_t * vpath)
{
size_t count_tokens = 0;
int element_index;
if (vpath == NULL)
return 0;
for (element_index = 0; element_index < vfs_path_elements_count (vpath); element_index++)
{
vfs_path_element_t *element;
char **path_tokens, **iterator;
element = vfs_path_get_by_index (vpath, element_index);
path_tokens = iterator = g_strsplit (element->path, PATH_SEP_STR, -1);
while (*iterator != NULL)
{
if (**iterator != '\0')
count_tokens++;
iterator++;
}
g_strfreev (path_tokens);
}
return count_tokens;
}
/* --------------------------------------------------------------------------------------------- */
/**
* Get subpath by tokens
*
* @param vpath path object
* @param start_position first token for got/ Started from 0.
* If negative, then position will be relative to end of path
* @param length count of tokens
*
* @return newly allocated string with path tokens separated by slash
*/
char *
vfs_path_tokens_get (const vfs_path_t * vpath, ssize_t start_position, size_t length)
{
GString *ret_tokens, *element_tokens;
int element_index;
size_t tokens_count = vfs_path_tokens_count (vpath);
if (length == 0)
length = tokens_count;
if (start_position < 0)
start_position = (ssize_t) tokens_count + start_position;
if (start_position < 0)
return NULL;
if (start_position >= (ssize_t) tokens_count)
return NULL;
if (start_position + (ssize_t) length > (ssize_t) tokens_count)
length = tokens_count - start_position;
ret_tokens = g_string_sized_new (32);
element_tokens = g_string_sized_new (32);
for (element_index = 0; element_index < vfs_path_elements_count (vpath); element_index++)
{
vfs_path_element_t *element;
char **path_tokens, **iterator;
g_string_assign (element_tokens, "");
element = vfs_path_get_by_index (vpath, element_index);
path_tokens = iterator = g_strsplit (element->path, PATH_SEP_STR, -1);
while (*iterator != NULL)
{
if (**iterator != '\0')
{
if (start_position == 0)
{
if (length == 0)
{
vfs_path_tokens_add_class_info (element, ret_tokens, element_tokens);
g_string_free (element_tokens, TRUE);
g_strfreev (path_tokens);
return g_string_free (ret_tokens, FALSE);
}
length--;
if (element_tokens->len != 0)
g_string_append_c (element_tokens, PATH_SEP);
g_string_append (element_tokens, *iterator);
}
else
start_position--;
}
iterator++;
}
g_strfreev (path_tokens);
vfs_path_tokens_add_class_info (element, ret_tokens, element_tokens);
}
g_string_free (element_tokens, TRUE);
return g_string_free (ret_tokens, !(start_position == 0 && length == 0));
}
/* --------------------------------------------------------------------------------------------- */

2
lib/vfs/path.h
View File

@ -59,6 +59,8 @@ vfs_path_t *vfs_path_from_str (const char *path_str);
vfs_path_t *vfs_path_from_str_flags (const char *path_str, vfs_path_flag_t flags);
vfs_path_t *vfs_path_build_filename (const char *first_element, ...);
vfs_path_t *vfs_path_append_new (const vfs_path_t *, const char *first_element, ...);
size_t vfs_path_tokens_count (const vfs_path_t *);
char *vfs_path_tokens_get (const vfs_path_t * vpath, ssize_t start_position, size_t length);
vfs_path_element_t *vfs_path_get_by_index (const vfs_path_t * path, int element_index);
vfs_path_element_t *vfs_path_element_clone (const vfs_path_element_t * element);

4
tests/lib/vfs/Makefile.am
View File

@ -11,6 +11,7 @@ LIBS=@CHECK_LIBS@ \
TESTS = \
canonicalize_pathname \
current_dir \
path_manipulations \
path_recode \
path_serialize \
tempdir \
@ -28,6 +29,9 @@ canonicalize_pathname_SOURCES = \
current_dir_SOURCES = \
current_dir.c
path_manipulations_SOURCES = \
path_manipulations.c
path_recode_SOURCES = \
path_recode.c

238
tests/lib/vfs/path_manipulations.c Normal file
View File

@ -0,0 +1,238 @@
/* lib/vfs - test vfs_path_t manipulation functions
Copyright (C) 2011 Free Software Foundation, Inc.
Written by:
Slava Zanko <slavazanko@gmail.com>, 2011
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License
as published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#define TEST_SUITE_NAME "/lib/vfs"
#include <check.h>
#include "lib/global.c"
#ifndef HAVE_CHARSET
#define HAVE_CHARSET 1
#endif
#include "lib/charsets.h"
#include "lib/strutil.h"
#include "lib/vfs/xdirentry.h"
#include "lib/vfs/path.h"
#include "src/vfs/local/local.c"
struct vfs_s_subclass test_subclass1, test_subclass2, test_subclass3;
struct vfs_class vfs_test_ops1, vfs_test_ops2, vfs_test_ops3;
static void
setup (void)
{
str_init_strings (NULL);
vfs_init ();
init_localfs ();
vfs_setup_work_dir ();
test_subclass1.flags = VFS_S_REMOTE;
vfs_s_init_class (&vfs_test_ops1, &test_subclass1);
vfs_test_ops1.name = "testfs1";
vfs_test_ops1.flags = VFSF_NOLINKS;
vfs_test_ops1.prefix = "test1";
vfs_register_class (&vfs_test_ops1);
vfs_s_init_class (&vfs_test_ops2, &test_subclass2);
vfs_test_ops2.name = "testfs2";
vfs_test_ops2.prefix = "test2";
vfs_register_class (&vfs_test_ops2);
vfs_s_init_class (&vfs_test_ops3, &test_subclass3);
vfs_test_ops3.name = "testfs3";
vfs_test_ops3.prefix = "test3";
vfs_test_ops3.flags = VFSF_LOCAL;
vfs_register_class (&vfs_test_ops3);
mc_global.sysconfig_dir = (char *) TEST_SHARE_DIR;
load_codepages_list ();
}
static void
teardown (void)
{
free_codepages_list ();
vfs_shut ();
str_uninit_strings ();
}
/* --------------------------------------------------------------------------------------------- */
START_TEST (test_vfs_path_tokens_count)
{
size_t tokens_count;
vfs_path_t *vpath;
vpath = vfs_path_from_str ("/");
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 0, "actual: %zu; expected: 0\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str ("/path");
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 1, "actual: %zu; expected: 1\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str ("/path1/path2/path3");
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 3, "actual: %zu; expected: 3\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str_flags ("test3://path1/path2/path3/path4", VPF_NO_CANON);
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 4, "actual: %zu; expected: 4\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str_flags ("path1/path2/path3", VPF_NO_CANON);
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 3, "actual: %zu; expected: 3\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str ("/path1/path2/path3/");
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 3, "actual: %zu; expected: 3\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str ("/local/path/test1://user:pass@some.host:12345/bla-bla/some/path/");
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 5, "actual: %zu; expected: 5\n", tokens_count);
vfs_path_free (vpath);
vpath = vfs_path_from_str (
"/local/path/test1://user:pass@some.host:12345/bla-bla/some/path/test2://#enc:KOI8-R/bla-bla/some/path/test3://111/22/33"
);
tokens_count = vfs_path_tokens_count(vpath);
fail_unless (tokens_count == 11, "actual: %zu; expected: 11\n", tokens_count);
vfs_path_free (vpath);
}
END_TEST
/* --------------------------------------------------------------------------------------------- */
#define check_invalid_token_str(input, start, length) { \
vpath = vfs_path_from_str (input); \
path_tokens = vfs_path_tokens_get(vpath, start, length); \
fail_unless (path_tokens == NULL, "path_tokens should be NULL!\n"); \
g_free (path_tokens); \
vfs_path_free (vpath); \
}
#define check_token_str(input, start, length, etalon) { \
vpath = vfs_path_from_str_flags (input, VPF_NO_CANON); \
path_tokens = vfs_path_tokens_get(vpath, start, length); \
fail_unless (path_tokens != NULL, "path_tokens shouldn't equal to NULL!\n"); \
if (path_tokens != NULL) \
fail_unless (strcmp(path_tokens, etalon) == 0, "\nactual: '%s'\netalon: '%s'", path_tokens, etalon); \
g_free (path_tokens); \
vfs_path_free (vpath); \
}
START_TEST (test_vfs_path_tokens_get)
{
vfs_path_t *vpath;
char *path_tokens;
/* Invalid start position */
check_invalid_token_str ("/" , 2, 1);
/* Invalid negative position */
check_invalid_token_str ("/path" , -3, 1);
/* Count of tokens is zero. Count should be autocorrected */
check_token_str ("/path", 0, 0, "path");
/* get 'path2/path3' by 1,2 */
check_token_str ("/path1/path2/path3/path4", 1, 2, "path2/path3");
/* get 'path2/path3' by 1,2 from LOCAL VFS */
check_token_str ("test3://path1/path2/path3/path4", 1, 2, "path2/path3");
/* get 'path2/path3' by 1,2 from LOCAL VFS with encoding */
check_token_str ("test3://path1/path2/test3://#enc:KOI8-R/path3/path4", 1, 2, "path2/test3://#enc:KOI8-R/path3");
/* get 'path2/path3' by 1,2 with encoding */
check_token_str ("#enc:KOI8-R/path1/path2/path3/path4", 1, 2, "#enc:KOI8-R/path2/path3");
/* get 'path2/path3' by 1,2 from non-LOCAL VFS */
check_token_str ("test2://path1/path2/path3/path4", 1, 2, "test2://path2/path3");
/* get 'path2/path3' by 1,2 throught non-LOCAL VFS */
check_token_str ("/path1/path2/test1://user:pass@some.host:12345/path3/path4", 1, 2, "path2/test1://user:pass@some.host:12345/path3");
/* get 'path2/path3' by 1,2 from LOCAL VFS */
/* TODO: currently this test don't passed. Probably broken string URI parser */
/* check_token_str ("test3://path1/path2/test2://test3://path3/path4", 1, 2, "path2/path3"); */
/* get 'path2/path3' by 1,2 where path2 it's LOCAL VFS */
check_token_str ("test3://path1/path2/test2://path3/path4", 1, 2, "path2/test2://path3");
/* get 'path2/path3' by 1,2 where path3 it's LOCAL VFS */
check_token_str ("test2://path1/path2/test3://path3/path4", 1, 2, "test2://path2/test3://path3");
/* get 'path4' by -1,1 */
check_token_str ("/path1/path2/path3/path4", -1, 1, "path4");
/* get 'path2/path3/path4' by -3,0 */
check_token_str ("/path1/path2/path3/path4", -3, 0, "path2/path3/path4");
}
END_TEST
/* --------------------------------------------------------------------------------------------- */
int
main (void)
{
int number_failed;
Suite *s = suite_create (TEST_SUITE_NAME);
TCase *tc_core = tcase_create ("Core");
SRunner *sr;
tcase_add_checked_fixture (tc_core, setup, teardown);
/* Add new tests here: *************** */
tcase_add_test (tc_core, test_vfs_path_tokens_count);
tcase_add_test (tc_core, test_vfs_path_tokens_get);
/* *********************************** */
suite_add_tcase (s, tc_core);
sr = srunner_create (s);
srunner_set_log (sr, "path_manipulations.log");
srunner_run_all (sr, CK_NORMAL);
number_failed = srunner_ntests_failed (sr);
srunner_free (sr);
return (number_failed == 0) ? 0 : 1;
}
/* --------------------------------------------------------------------------------------------- */