qse/ase/awk/sa.c

362 lines
6.7 KiB
C

/*
* $Id: sa.c,v 1.13 2006-03-31 16:35:37 bacon Exp $
*/
#include <xp/awk/awk_i.h>
#ifdef __STAND_ALONE
static xp_char_t* __adjust_format (const xp_char_t* format);
xp_size_t xp_strlen (const xp_char_t* str)
{
const xp_char_t* p = str;
while (*p != XP_CHAR('\0')) p++;
return p - str;
}
xp_char_t* xp_strdup (const xp_char_t* str)
{
xp_char_t* tmp;
tmp = (xp_char_t*) xp_malloc (
(xp_strlen(str) + 1) * xp_sizeof(xp_char_t));
if (tmp == XP_NULL) return XP_NULL;
xp_strcpy (tmp, str);
return tmp;
}
xp_char_t* xp_strxdup (const xp_char_t* str, xp_size_t len)
{
xp_char_t* tmp;
tmp = (xp_char_t*) xp_malloc ((len + 1) * xp_sizeof(xp_char_t));
if (tmp == XP_NULL) return XP_NULL;
xp_strxncpy (tmp, len + 1, str, len);
return tmp;
}
xp_size_t xp_strcpy (xp_char_t* buf, const xp_char_t* str)
{
xp_char_t* org = buf;
while ((*buf++ = *str++) != XP_CHAR('\0'));
return buf - org - 1;
}
xp_size_t xp_strxncpy (
xp_char_t* buf, xp_size_t bsz, const xp_char_t* str, xp_size_t len)
{
xp_size_t n;
if (bsz <= 0) return 0;
if ((n = bsz - 1) > len) n = len;
xp_memcpy (buf, str, n * xp_sizeof(xp_char_t));
buf[n] = XP_CHAR('\0');
return n;
}
int xp_strcmp (const xp_char_t* s1, const xp_char_t* s2)
{
while (*s1 == *s2 && *s2 != XP_CHAR('\0')) s1++, s2++;
if (*s1 > *s2) return 1;
else if (*s1 < *s2) return -1;
return 0;
}
xp_long_t xp_strtolong (xp_char_t* str)
{
xp_long_t n = 0;
while (xp_isdigit(*str))
{
n = n * 10 + (*str - XP_CHAR('0'));
str++;
}
return n;
}
xp_real_t xp_strtoreal (xp_char_t* str)
{
/* TODO: */
return (xp_real_t)0.0;
}
int xp_printf (const xp_char_t* fmt, ...)
{
int n;
xp_va_list ap;
xp_va_start (ap, fmt);
n = xp_vprintf (fmt, ap);
xp_va_end (ap);
return n;
}
int xp_vprintf (const xp_char_t* fmt, xp_va_list ap)
{
int n;
xp_char_t* nf = __adjust_format (fmt);
if (nf == XP_NULL) return -1;
#ifdef XP_CHAR_IS_MCHAR
n = vprintf (nf, ap);
#else
n = vwprintf (nf, ap);
#endif
xp_free (nf);
return n;
}
int xp_sprintf (xp_char_t* buf, xp_size_t size, const xp_char_t* fmt, ...)
{
int n;
xp_va_list ap;
xp_va_start (ap, fmt);
n = xp_vsprintf (buf, size, fmt, ap);
xp_va_end (ap);
return n;
}
int xp_vsprintf (xp_char_t* buf, xp_size_t size, const xp_char_t* fmt, xp_va_list ap)
{
int n;
xp_char_t* nf = __adjust_format (fmt);
if (nf == XP_NULL) return -1;
#if defined(XP_CHAR_IS_MCHAR)
n = vsnprintf (buf, size, nf, ap);
#elif defined(_WIN32)
n = _vsnwprintf (buf, size, nf, ap);
#else
n = vswprintf (buf, size, nf, ap);
#endif
xp_free (nf);
return n;
}
xp_str_t* xp_str_open (xp_str_t* str, xp_size_t capa)
{
if (str == XP_NULL) {
str = (xp_str_t*)xp_malloc (sizeof(xp_str_t));
if (str == XP_NULL) return XP_NULL;
str->__dynamic = xp_true;
}
else str->__dynamic = xp_false;
str->buf = (xp_char_t*)xp_malloc (
xp_sizeof(xp_char_t) * (capa + 1));
if (str->buf == XP_NULL) {
if (str->__dynamic) xp_free (str);
return XP_NULL;
}
str->size = 0;
str->capa = capa;
str->buf[0] = XP_CHAR('\0');
return str;
}
void xp_str_close (xp_str_t* str)
{
xp_free (str->buf);
if (str->__dynamic) xp_free (str);
}
void xp_str_forfeit (xp_str_t* str)
{
if (str->__dynamic) xp_free (str);
}
xp_size_t xp_str_cat (xp_str_t* str, const xp_char_t* s)
{
/* TODO: improve it */
return xp_str_ncat (str, s, xp_strlen(s));
}
static xp_size_t __strncpy (xp_char_t* buf, const xp_char_t* str, xp_size_t len)
{
const xp_char_t* end = str + len;
while (str < end) *buf++ = *str++;
*buf = XP_CHAR('\0');
return len;
}
xp_size_t xp_str_ncat (xp_str_t* str, const xp_char_t* s, xp_size_t len)
{
xp_char_t* buf;
xp_size_t capa;
if (len > str->capa - str->size) {
capa = str->size + len;
/* double the capa if necessary for concatenation */
if (capa < str->capa * 2) capa = str->capa * 2;
buf = (xp_char_t*)xp_realloc (
str->buf, xp_sizeof(xp_char_t) * (capa + 1));
if (buf == XP_NULL) return (xp_size_t)-1;
str->capa = capa;
str->buf = buf;
}
str->size += __strncpy (&str->buf[str->size], s, len);
str->buf[str->size] = XP_CHAR('\0');
return str->size;
}
xp_size_t xp_str_ccat (xp_str_t* str, xp_char_t c)
{
return xp_str_ncat (str, &c, 1);
}
void xp_str_clear (xp_str_t* str)
{
str->size = 0;
str->buf[0] = XP_CHAR('\0');
}
#define MOD_SHORT 1
#define MOD_LONG 2
#define MOD_LONGLONG 3
#define ADDC(str,c) \
do { \
if (xp_str_ccat(&str, c) == (xp_size_t)-1) { \
xp_str_close (&str); \
return XP_NULL; \
} \
} while (0)
static xp_char_t* __adjust_format (const xp_char_t* format)
{
const xp_char_t* fp = format;
xp_char_t* tmp;
xp_str_t str;
xp_char_t ch;
int modifier;
if (xp_str_open (&str, 256) == XP_NULL) return XP_NULL;
while (*fp != XP_CHAR('\0')) {
while (*fp != XP_CHAR('\0') && *fp != XP_CHAR('%')) {
ADDC (str, *fp++);
}
if (*fp == XP_CHAR('\0')) break;
xp_assert (*fp == XP_CHAR('%'));
ch = *fp++;
ADDC (str, ch); /* add % */
ch = *fp++;
/* flags */
for (;;) {
if (ch == XP_CHAR(' ') || ch == XP_CHAR('+') ||
ch == XP_CHAR('-') || ch == XP_CHAR('#')) {
ADDC (str, ch);
}
else if (ch == XP_CHAR('0')) {
ADDC (str, ch);
ch = *fp++;
break;
}
else break;
ch = *fp++;
}
/* check the width */
if (ch == XP_CHAR('*')) ADDC (str, ch);
else {
while (xp_isdigit(ch)) {
ADDC (str, ch);
ch = *fp++;
}
}
/* precision */
if (ch == XP_CHAR('.')) {
ADDC (str, ch);
ch = *fp++;
if (ch == XP_CHAR('*')) ADDC (str, ch);
else {
while (xp_isdigit(ch)) {
ADDC (str, ch);
ch = *fp++;
}
}
}
/* modifier */
for (modifier = 0;;) {
if (ch == XP_CHAR('h')) modifier = MOD_SHORT;
else if (ch == XP_CHAR('l')) {
modifier = (modifier == MOD_LONG)? MOD_LONGLONG: MOD_LONG;
}
else break;
ch = *fp++;
}
/* type */
if (ch == XP_CHAR('%')) ADDC (str, ch);
else if (ch == XP_CHAR('c') || ch == XP_CHAR('s')) {
#if !defined(XP_CHAR_IS_MCHAR) && !defined(_WIN32)
ADDC (str, 'l');
#endif
ADDC (str, ch);
}
else if (ch == XP_CHAR('C') || ch == XP_CHAR('S')) {
#ifdef _WIN32
ADDC (str, ch);
#else
#ifdef XP_CHAR_IS_MCHAR
ADDC (str, 'l');
#endif
ADDC (str, xp_tolower(ch));
#endif
}
else if (ch == XP_CHAR('d') || ch == XP_CHAR('i') ||
ch == XP_CHAR('o') || ch == XP_CHAR('u') ||
ch == XP_CHAR('x') || ch == XP_CHAR('X')) {
if (modifier == MOD_SHORT) {
ADDC (str, 'h');
}
else if (modifier == MOD_LONG) {
ADDC (str, 'l');
}
else if (modifier == MOD_LONGLONG) {
#if defined(_WIN32) && !defined(__LCC__)
ADDC (str, 'I');
ADDC (str, '6');
ADDC (str, '4');
#else
ADDC (str, 'l');
ADDC (str, 'l');
#endif
}
ADDC (str, ch);
}
else if (ch == XP_CHAR('\0')) break;
else ADDC (str, ch);
}
tmp = XP_STR_BUF(&str);
xp_str_forfeit (&str);
return tmp;
}
#endif