static CONTEXTCALL __print_string(char * c, context_p o)
{
if(c) {
for(; *c; c++)
__print_char(*c, o);
} else {
debug(DEBUG_ERR, "NULL pointer");
__print_char('N', o);
__print_char('U', o);
__print_char('L', o);
__print_char('L', o);
}
return 0;
}
/**
* Print a number to the given string, with the given base.
*/
static int __print_int( _print_ctx_t* ctx,
int i,
int b,
int sg,
int width,
int pad,
int letbase,
int print_limit )
{
char print_buf[_PRINTFMT_INT_BUF_LEN];
register char *s;
register int t, neg = 0, pc = 0;
register unsigned int u = i;
if( i == 0 ) {
print_buf[0] = '0';
print_buf[1] = '\0';
return __print_str( ctx, print_buf, width, pad, print_limit, true );
}
if( sg && b == 10 && i < 0 ) {
neg = 1;
u = -i;
}
s = print_buf + _PRINTFMT_INT_BUF_LEN - 1;
*s = '\0';
while( u ) {
t = u % b;
if( t >= 10 )
t += letbase - '0' - 10;
*--s = t + '0';
u /= b;
}
if( neg ) {
if( width && ( pad & _PRINTFMT_PAD_ZERO ) ) {
__print_char( ctx, '-' );
++pc;
--width;
} else {
*--s = '-';
}
}
return pc + __print_str( ctx, s, width, pad, print_limit, true );
}
/**
* Print a string to a given string.
*/
static int __print_str( _print_ctx_t* ctx,
const char *string,
int width,
int pad,
int print_limit,
bool is_number )
{
int pc = 0;
int padchar = ' ';
int i, len;
if( width > 0 ) {
register int len = 0;
register const char *ptr;
for( ptr = string; *ptr; ++ptr )
++len;
if( len >= width )
width = 0;
else
width -= len;
if( pad & _PRINTFMT_PAD_ZERO )
padchar = '0';
}
if( !( pad & _PRINTFMT_PAD_RIGHT ) ) {
for( ; width > 0; --width ) {
__print_char( ctx, padchar );
++pc;
}
}
// The string to print is not the result of a number conversion to ascii.
if( false == is_number ) {
// For a string, printlimit is the max number of characters to display.
for( ; print_limit && *string; ++string, --print_limit ) {
__print_char( ctx, *string );
++pc;
}
}
// The string to print represents an integer number.
if( true == is_number ) {
// In this case, printlimit is the min number of digits to print.
// If the length of the number to print is less than the min nb of i
// digits to display, we add 0 before printing the number.
len = strlen( string );
if( len < print_limit ) {
i = print_limit - len;
for( ; i; i-- ) {
__print_char( ctx, '0' );
++pc;
}
}
}
/*
* Else: The string to print is not the result of a number conversion to ascii.
* For a string, printlimit is the max number of characters to display.
*/
for( ; print_limit && *string; ++string, --print_limit ) {
__print_char( ctx, *string );
++pc;
}
for( ; width > 0; --width ) {
__print_char( ctx, padchar );
++pc;
}
return pc;
}
