I only have access to 'C' and need to replace characters within a character array. I have not come up with any clean solutions for this relatively simple procedure.
I pass in a character array, for example:
char strBuffer[] = "/html/scorm12/course/course_index.jsp?user_id=100000232&course_id=100000879&course_prefix=ACQ&version=2&scorm_version=3&roster_id=100011365&course_name=Test%20Course%201.2&mode=browse&course_number=0000&mode_id=1";
I need to modify this buffer to replace all the &
with &
. The resulting buffer does not have to overwrite strBuffer
(a new buffer can be created).
Any suggestions?
Edit:
In the past I have used the strstr()
function in a loop, but was looking for a simpler solution, perhaps the C equivalent to the String.Replace()
method.
Edit:
For my immediate needs, the following is all that I need.
char strBuffer[] = "/html/scorm12/course/course_index.jsp?user_id=100000232&course_id=100000879&course_prefix=ACQ&version=2&scorm_version=3&roster_id=100011365&course_name=Test%20Course%201.2&mode=browse&course_number=0000&mode_id=1";
char strTemp[1024];
char *s = (char*)strBuffer;
int i=0;
while (*s)
{
strTemp[i++] = *s;
if (strncmp(s,"&",5) == 0)
{
s += 5;
}
else
s++;
}
strTemp[i] = 0;
Future modifications:
strTemp
variable.EDIT:
I created a blog post to detail the steps and provide a more flexible solution:
http://www.solutionmaniacs.com/blog/2012/11/25/c-removereplace-characters-in-a-string.html
char *s = (char*)strBuffer;
char sClean[strlen(strBuffer) + 1]; /* +1 for null-byte */
/* if above does not work in your compiler, use:
char *sClean = (char*)malloc(sizeof(strBuffer) + 1);
*/
int i=0;
while (*s)
{
sClean[i++]= *s;
if ((*s == '&') && (!strncmp(s, "&", 5)) s += 5;
else s++;
}
sClean[i] = 0;