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Replace string chars
Author
Which function and header do i need to replace characters in a string ?
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are you using stl strings or char*
dunno about std::strings but for char* such a function doesnt exist, but its trivial to write one yourself:
this will replace all 'a' with 'z' when str is either char* or std::string when you replace strlen(str) with str.length()
Runicsoft -- latest attraction: obfuscated Brainfuck Interpreter in SML
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[edited by - Burning_Ice on January 19, 2003 9:10:55 AM]
dunno about std::strings but for char* such a function doesnt exist, but its trivial to write one yourself:
char kill = 'a';char replace = 'z';for ( int i = 0; i < strlen(str); i++ ) if ( str[i] == kill ) str[i] = replace; this will replace all 'a' with 'z' when str is either char* or std::string when you replace strlen(str) with str.length()
Runicsoft -- latest attraction: obfuscated Brainfuck Interpreter in SML
This post was made entirely from re-cycled electrons
[edited by - Burning_Ice on January 19, 2003 9:10:55 AM]
Author
and if i should replace, for example, "......" with "..", what the code would be ?
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Hey, Your .sig is too big!
Now...
In that case you're creating a new string (".." is shorter than "......"), so it's not just a matter of replacement.
And that is why you should use std::string.
[edited by - Oluseyi on January 19, 2003 11:50:33 AM]
Now...
quote:Original post by penetrator
and if i should replace, for example, "......" with "..", what the code would be ?
In that case you're creating a new string (".." is shorter than "......"), so it's not just a matter of replacement.
char * found = 0;char formed[60] = {0};const char text[60] = "Some very long string incorporating a...... triple ellipsis";const char * trellipsis = "......"; found = strstr( text, trellipsis );if( found != 0 && found != text ){ strncpy( formed, text, (found - text) ); strcat( formed, ".." ); strcat( formed, (found + 6) );} And that is why you should use std::string.
[edited by - Oluseyi on January 19, 2003 11:50:33 AM]
Author
Still not working. All i want to do is to store string values which are separated by spaces, sometimes 2, sometimes 4 or 5 spaces, into 1 array. So just imagine the string is smt like this:
char mystring[8192]="1 4 6 7 2";
i want to store values into a simple array, so that i get smt like:
myarray[1]=1;
myarray[2]=4;
myarray[3]=6;
myarray[4]=7;
myarray[5]=2;
I was used to to this in VB very easily with a Split function, but in VC++ i''m lost !
char mystring[8192]="1 4 6 7 2";
i want to store values into a simple array, so that i get smt like:
myarray[1]=1;
myarray[2]=4;
myarray[3]=6;
myarray[4]=7;
myarray[5]=2;
I was used to to this in VB very easily with a Split function, but in VC++ i''m lost !
#include <sstream>
int main() {
char mystring[8192]="1 4 6 7 2";
std::stringstream s;
s << mystring;
int a[5];
for (int i=0; i<5; ++i)
s >> a;
}
int main() {
char mystring[8192]="1 4 6 7 2";
std::stringstream s;
s << mystring;
int a[5];
for (int i=0; i<5; ++i)
s >> a;
}
#include <sstream>int main() { char mystring[8192]="1 4 6 7 2"; std::stringstream s; s << mystring; int a[5]; for (int i=0; i<5; ++i) s >> a[i];} quote:Original post by penetrator
Still not working. All i want to do is to store string values which are separated by spaces, sometimes 2, sometimes 4 or 5 spaces, into 1 array...
In the future, say what you want to do. It saves both us and you time explaining stuff that doesn''t solve your problem.
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