hmm, I believe that every different implementation means new different
logic, and a different logic means better/worse performance ...
I'll be sending you the final result for comparsion anyway ;)
Regards,
Khalid Al-Kary
>
>
>
> > Hi fellows,
> > I'm developing a low-level C-based string manipulation API ...
> > in my Implementation of the function "explode" which splits a
> > string into
> > pieces (with a specified separator) and returns these pieces
> > into an array.
>
>
>While you are reinventing the wheel, you can take a look at GLib's
>sources at www.gtk.org. More specifically the funciton g_strsplit():
>
>http://developer.gnome.org/doc/API/2.0/glib/glib-String-Utility-Functions.ht
>ml#g-strsplit
>
>
>Here is the code:
>
>
>Note: "GSList" is a single linked list pointer.
>
>
>
>
>- 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8<
>
>/**
> * g_strsplit:
> * @string: a string to split.
> * @delimiter: a string which specifies the places at which to split the
>string.
> * The delimiter is not included in any of the resulting strings,
>unless
> * @max_tokens is reached.
> * @max_tokens: the maximum number of pieces to split @string into. If
>this
>is
> * less than 1, the string is split completely.
> *
> * Splits a string into a maximum of @max_tokens pieces, using the given
> * @delimiter. If @max_tokens is reached, the remainder of @string is
>appended
> * to the last token.
> *
> * As a special case, the result of splitting the empty string "" is an
>empty
> * vector, not a vector containing a single string. The reason for this
> * special case is that being able to represent a empty vector is
>typically
> * more useful than consistent handling of empty elements. If you do need
> * to represent empty elements, you'll need to check for the empty string
> * before calling g_strsplit().
> *
> * Return value: a newly-allocated %NULL-terminated array of strings. Use
> * g_strfreev() to free it.
> **/
>gchar**
>g_strsplit (const gchar *string,
> const gchar *delimiter,
> gint max_tokens)
>{
> GSList *string_list = NULL, *slist;
> gchar **str_array, *s;
> guint n = 0;
> const gchar *remainder;
>
> g_return_val_if_fail (string != NULL, NULL);
> g_return_val_if_fail (delimiter != NULL, NULL);
> g_return_val_if_fail (delimiter[0] != '\0', NULL);
>
> if (max_tokens < 1)
> max_tokens = G_MAXINT;
>
> remainder = string;
> s = strstr (remainder, delimiter);
> if (s)
> {
> gsize delimiter_len = strlen (delimiter);
>
> while (--max_tokens && s)
> {
> gsize len;
> gchar *new_string;
>
> len = s - remainder;
> new_string = g_new (gchar, len + 1);
> strncpy (new_string, remainder, len);
> new_string[len] = 0;
> string_list = g_slist_prepend (string_list, new_string);
> n++;
> remainder = s + delimiter_len;
> s = strstr (remainder, delimiter);
> }
> }
> if (*string)
> {
> n++;
> string_list = g_slist_prepend (string_list, g_strdup (remainder));
> }
>
> str_array = g_new (gchar*, n + 1);
>
> str_array[n--] = NULL;
> for (slist = string_list; slist; slist = slist->next)
> str_array[n--] = slist->data;
>
> g_slist_free (string_list);
>
> return str_array;
>}
>
>- 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8< - 8<
>
>
>
>
>
>
>
>
>Daniel K. O.
>
>
>Only ask questions with yes/no answers if you want "yes" or "no" as the
>answer.
>http://homepages.tesco.net/~J.deBoynePollard/FGA/questions-with-yes-or-no-an
>swers.html
>
>
>
>
_________________________________________________________________
MSN 8 with e-mail virus protection service: 2 months FREE*
http://join.msn.com/?page=features/virus
|
