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#include "config.h"
#include "buffer.h"
#include "funcs.h"
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <math.h>
#define CHUNK 512
void Buffer::append(int c)
{
int newsize=bufsize+CHUNK;
unsigned char *newbuf=new unsigned char[newsize];
if (!newbuf) outofmem();
if (bufsize) memcpy(newbuf, buf, bufsize);
if (buf) delete[] buf;
buf=newbuf;
bufsize = newsize;
buf[buflength++]=c;
}
void Buffer::set(const char *p)
{
int l=strlen(p);
if (bufsize < l)
{
int newsize=l + CHUNK-1;
newsize -= (newsize % CHUNK);
unsigned char *newbuf=new unsigned char[newsize];
if (!newbuf) outofmem();
if (buf) delete[] buf;
buf=newbuf;
bufsize=newsize;
}
memcpy(buf, p, l);
buflength=l;
}
int Buffer::operator-(const Buffer &o) const
{
int i;
for (i=0; i<buflength && i < o.buflength; i++)
{
if (buf[i] < o.buf[i]) return (-1);
if (buf[i] > o.buf[i]) return (1);
}
return (buflength < o.buflength ? -1:
buflength > o.buflength ? 1:0);
}
int Buffer::operator-(const char *o) const
{
int i;
for (i=0; i<buflength && o[i]; i++)
{
if (buf[i] < o[i]) return (-1);
if (buf[i] > o[i]) return (1);
}
return (i < buflength ? 1: o[i] ? -1:0);
}
Buffer &Buffer::operator=(const Buffer &o)
{
if (bufsize < o.buflength)
{
int newsize=(o.buflength + CHUNK-1);
newsize -= (newsize % CHUNK);
unsigned char *newbuf=new unsigned char[newsize];
if (!newbuf) outofmem();
if (buf) delete[] buf;
buf=newbuf;
bufsize=newsize;
}
if (o.buflength) memcpy(buf, o.buf, o.buflength);
buflength=o.buflength;
return (*this);
}
void Buffer::append(const void *p, int l)
{
if (bufsize - buflength < l)
{
int newsize=(buflength+l + CHUNK-1);
newsize -= (newsize % CHUNK);
unsigned char *newbuf=new unsigned char[newsize];
if (!newbuf) outofmem();
if (buf)
{
memcpy(newbuf, buf, buflength);
delete[] buf;
}
buf=newbuf;
bufsize=newsize;
}
if (l) memcpy(buf+buflength, p, l);
buflength += l;
}
void Buffer::append(unsigned long n)
{
char tbuf[40];
char *p=tbuf+sizeof(tbuf)-1;
*p=0;
do
{
*--p= (n % 10) + '0';
} while ( (n /= 10) != 0);
append(p);
}
void Buffer::append(double d)
{
char tbuf[MAXLONGSIZE < 40 ? 40:MAXLONGSIZE+4];
sprintf(tbuf, "%1.*g", MAXLONGSIZE, d);
operator += (tbuf);
}
int Buffer::Int(const char *def) const
{
const unsigned char *p=buf;
int l=buflength;
int minus=0;
unsigned num=0;
while (l && isspace(*p))
{
--l;
++p;
}
if ((!l || (*p != '-' && (*p < '0' || *p > '9'))) && def != 0)
{
p= (const unsigned char *)def;
l=strlen(def);
}
if (l && *p == '-')
{
minus=1;
--l;
++p;
}
while (l)
{
if (*p < '0' || *p > '9') break;
num = num * 10 + (*p-'0');
++p;
--l;
}
if (minus) num= -num;
return ( (int)num );
}
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