Search And Replace ??

How would I search for a certain character in a variable and replace it with another character....

for example how would i search for a linefeed and replace it with a CarriageReturn ??

Thanx
AAG

here i found this code

Code:

---

int replstrr(const char *str, const char *sch, const char *rpl, char *tgt);

int replstrr(const char *str, const char *sch, const char *rpl, char *tgt)
{
        const char *p = NULL;

        if (str == NULL || tgt == NULL)
        {
                return(1);
        }
        for (p = str; *p; ++p)
        {
                if (strncmp(p, sch, strlen(sch)) == 0)
                {
                        strcat(tgt, rpl);
                        p += strlen(sch) - 1;

                }
                else
                {
                        strncat(tgt, p, 1);                               
                }
        }
        return(0);
}

---

I am calling the function as follows

Code:

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char FinalFileString[99999];
                         
replstrr(pszFileText, "\n", "\r", FinalFileString);

---

it finds the linefeeds and replaces them with Carriage returns yet the textbox that i'm sending FinalFileString to still reads the Carriage Return as a symbol and not a an Actual Carriage Return... How do i fix this ???

i also know that the ascii equvialents of LineFeed and CarriageReturn are as follows,

0xA = Line Feed

0xD = Carriage Return

i know how to do what i need to do in visual basic and in case u want to know, a line feed in visual basic is chr$(10) and a carriage return is chr$(32) or vbcrlf

strncat copies the string each time you call it, which means your algoritm is quadratic, and get's freakin slow with longer strings. I'll be back with a linear algoritm

Try this, it won't nessesarily need the strings to be on heap, and runs in linear time.

PHP Code:

---

char* replacestr(const char* str,const char* crt,const char* rep,char*trg){
    char* temp=trg;
    for(;*str; ){
        for(const char*i=crt,*j=str;*j&&*i&&*i==*j;j++,i++);
        if (!*i){
            for(i=rep;*i;*trg++=*i++)str++;
            str=j;
        }else 
            *trg++=*str++;
    }
    *trg=0;
    return temp;

}; 


---

Are you trying to do this without using the standard string functions?

because if not... wouldn't it be easier to do something like this

Code:

---

char* replacestr(const char* str,const char* crt,const char* rep,char*trg)
{

    strcpy ( trg, str );

    char * pos = strstr ( trg, str );

    if ( pos != NULL)
        *pos = *crt;

    return ( trg );

}

---

aight coo :) in fact that might not be neccessary if i can figure out how to change the the font format for the whole RichEdit Window... the richedit recognizes all linefeeds as for what they are and not as symbols but i need to set the font to Terminal.... any idea how ??

Take a look at the SelectObect function

SelectObject()

Code:

---

    HFONT hTheFont;
    HDC hDC = GetDC(RichHwnd);

    hTheFont = CreateFont(9, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY,DEFAULT_PITCH, "Terminal");

        SelectObject(hDC, hTheFont);
   
        ReleaseDC(RichHwnd, hDC);

---

it has no effect

Did you say you were using a Rich Edit control?

Take a look at this Rich Edit message

EM_SETCHARFORMAT