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rewrote replace_all()

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added replace_all() tests
This commit is contained in:
David Anderson
2006-09-10 08:15:00 +00:00
parent 3754604686
commit d95f794844
2 changed files with 72 additions and 13 deletions
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51
plugins/include/string.inc
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@ -20,7 +20,7 @@ native contain(const source[],const string[]);
native containi(const source[],const string[]);
/* Replaces given string to another in given text. */
native replace(text[],len,const what[],const with[]);
native replace(text[], len, const what[], const with[]);
/* Adds one string to another. Last parameter different from 0, specifies
* how many chars we want to add. Function returns number of all merged chars. */
@ -215,19 +215,50 @@ stock remove_filepath(szFilePath[], szFile[], pMax)
return;
}
/* Replaces a contained string
By jtp10181
*/
/* Replaces a contained string iteratively.
* This ensures that no infinite replacements will take place by
* intelligently moving to the next string position each iteration.
*/
stock replace_all(string[], len, what[], with[])
{
new withlen, charnum = 0;
new total = 0;
new pos = 0;
withlen = strlen(with);
while (replace(string[charnum], len, what, with) != 0)
if ((pos = contain(string, what)) == -1)
{
charnum += contain(string[charnum], what) + withlen;
return 0;
}
new total = 0;
new with_len = strlen(with);
new diff = strlen(what) - with_len;
new total_len = strlen(string);
new temp_pos = 0
while (replace(string[pos], len, what, with) != 0)
{
/* jump to position after replacement */
pos += with_len;
/* update cached length of string */
total_len -= diff;
/* will the next call be operating on the last character? */
if (pos >= total_len)
{
break;
}
/* find the next position from our offset */
temp_pos = contain(string[pos], what);
/* if it's invalid, we're done */
if (temp_pos == -1)
{
break;
}
/* otherwise, reposition and update counters */
pos += temp_pos;
total++;
}