342 lines
6.5 KiB
C
342 lines
6.5 KiB
C
/*
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* $Id: sa.c,v 1.14 2006-04-04 16:03:14 bacon Exp $
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*/
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#include <xp/awk/awk_i.h>
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#ifdef __STAND_ALONE
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static xp_char_t* __adjust_format (const xp_char_t* format);
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xp_size_t xp_strlen (const xp_char_t* str)
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{
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const xp_char_t* p = str;
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while (*p != XP_CHAR('\0')) p++;
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return p - str;
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}
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xp_char_t* xp_strdup (const xp_char_t* str)
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{
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xp_char_t* tmp;
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tmp = (xp_char_t*) xp_malloc (
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(xp_strlen(str) + 1) * xp_sizeof(xp_char_t));
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if (tmp == XP_NULL) return XP_NULL;
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xp_strcpy (tmp, str);
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return tmp;
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}
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xp_char_t* xp_strxdup (const xp_char_t* str, xp_size_t len)
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{
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xp_char_t* tmp;
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tmp = (xp_char_t*) xp_malloc ((len + 1) * xp_sizeof(xp_char_t));
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if (tmp == XP_NULL) return XP_NULL;
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xp_strxncpy (tmp, len + 1, str, len);
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return tmp;
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}
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xp_size_t xp_strcpy (xp_char_t* buf, const xp_char_t* str)
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{
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xp_char_t* org = buf;
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while ((*buf++ = *str++) != XP_CHAR('\0'));
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return buf - org - 1;
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}
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xp_size_t xp_strxncpy (
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xp_char_t* buf, xp_size_t bsz, const xp_char_t* str, xp_size_t len)
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{
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xp_size_t n;
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if (bsz <= 0) return 0;
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if ((n = bsz - 1) > len) n = len;
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xp_memcpy (buf, str, n * xp_sizeof(xp_char_t));
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buf[n] = XP_CHAR('\0');
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return n;
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}
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int xp_strcmp (const xp_char_t* s1, const xp_char_t* s2)
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{
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while (*s1 == *s2 && *s2 != XP_CHAR('\0')) s1++, s2++;
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if (*s1 > *s2) return 1;
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else if (*s1 < *s2) return -1;
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return 0;
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}
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int xp_printf (const xp_char_t* fmt, ...)
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{
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int n;
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xp_va_list ap;
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xp_va_start (ap, fmt);
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n = xp_vprintf (fmt, ap);
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xp_va_end (ap);
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return n;
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}
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int xp_vprintf (const xp_char_t* fmt, xp_va_list ap)
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{
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int n;
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xp_char_t* nf = __adjust_format (fmt);
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if (nf == XP_NULL) return -1;
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#ifdef XP_CHAR_IS_MCHAR
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n = vprintf (nf, ap);
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#else
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n = vwprintf (nf, ap);
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#endif
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xp_free (nf);
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return n;
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}
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int xp_sprintf (xp_char_t* buf, xp_size_t size, const xp_char_t* fmt, ...)
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{
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int n;
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xp_va_list ap;
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xp_va_start (ap, fmt);
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n = xp_vsprintf (buf, size, fmt, ap);
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xp_va_end (ap);
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return n;
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}
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int xp_vsprintf (xp_char_t* buf, xp_size_t size, const xp_char_t* fmt, xp_va_list ap)
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{
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int n;
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xp_char_t* nf = __adjust_format (fmt);
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if (nf == XP_NULL) return -1;
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#if defined(XP_CHAR_IS_MCHAR)
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n = vsnprintf (buf, size, nf, ap);
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#elif defined(_WIN32)
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n = _vsnwprintf (buf, size, nf, ap);
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#else
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n = vswprintf (buf, size, nf, ap);
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#endif
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xp_free (nf);
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return n;
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}
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xp_str_t* xp_str_open (xp_str_t* str, xp_size_t capa)
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{
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if (str == XP_NULL) {
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str = (xp_str_t*)xp_malloc (sizeof(xp_str_t));
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if (str == XP_NULL) return XP_NULL;
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str->__dynamic = xp_true;
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}
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else str->__dynamic = xp_false;
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str->buf = (xp_char_t*)xp_malloc (
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xp_sizeof(xp_char_t) * (capa + 1));
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if (str->buf == XP_NULL) {
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if (str->__dynamic) xp_free (str);
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return XP_NULL;
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}
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str->size = 0;
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str->capa = capa;
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str->buf[0] = XP_CHAR('\0');
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return str;
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}
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void xp_str_close (xp_str_t* str)
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{
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xp_free (str->buf);
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if (str->__dynamic) xp_free (str);
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}
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void xp_str_forfeit (xp_str_t* str)
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{
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if (str->__dynamic) xp_free (str);
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}
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xp_size_t xp_str_cat (xp_str_t* str, const xp_char_t* s)
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{
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/* TODO: improve it */
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return xp_str_ncat (str, s, xp_strlen(s));
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}
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static xp_size_t __strncpy (xp_char_t* buf, const xp_char_t* str, xp_size_t len)
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{
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const xp_char_t* end = str + len;
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while (str < end) *buf++ = *str++;
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*buf = XP_CHAR('\0');
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return len;
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}
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xp_size_t xp_str_ncat (xp_str_t* str, const xp_char_t* s, xp_size_t len)
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{
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xp_char_t* buf;
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xp_size_t capa;
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if (len > str->capa - str->size) {
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capa = str->size + len;
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/* double the capa if necessary for concatenation */
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if (capa < str->capa * 2) capa = str->capa * 2;
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buf = (xp_char_t*)xp_realloc (
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str->buf, xp_sizeof(xp_char_t) * (capa + 1));
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if (buf == XP_NULL) return (xp_size_t)-1;
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str->capa = capa;
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str->buf = buf;
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}
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str->size += __strncpy (&str->buf[str->size], s, len);
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str->buf[str->size] = XP_CHAR('\0');
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return str->size;
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}
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xp_size_t xp_str_ccat (xp_str_t* str, xp_char_t c)
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{
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return xp_str_ncat (str, &c, 1);
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}
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void xp_str_clear (xp_str_t* str)
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{
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str->size = 0;
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str->buf[0] = XP_CHAR('\0');
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}
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#define MOD_SHORT 1
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#define MOD_LONG 2
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#define MOD_LONGLONG 3
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#define ADDC(str,c) \
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do { \
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if (xp_str_ccat(&str, c) == (xp_size_t)-1) { \
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xp_str_close (&str); \
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return XP_NULL; \
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} \
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} while (0)
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static xp_char_t* __adjust_format (const xp_char_t* format)
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{
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const xp_char_t* fp = format;
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xp_char_t* tmp;
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xp_str_t str;
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xp_char_t ch;
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int modifier;
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if (xp_str_open (&str, 256) == XP_NULL) return XP_NULL;
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while (*fp != XP_CHAR('\0')) {
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while (*fp != XP_CHAR('\0') && *fp != XP_CHAR('%')) {
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ADDC (str, *fp++);
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}
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if (*fp == XP_CHAR('\0')) break;
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xp_assert (*fp == XP_CHAR('%'));
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ch = *fp++;
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ADDC (str, ch); /* add % */
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ch = *fp++;
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/* flags */
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for (;;) {
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if (ch == XP_CHAR(' ') || ch == XP_CHAR('+') ||
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ch == XP_CHAR('-') || ch == XP_CHAR('#')) {
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ADDC (str, ch);
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}
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else if (ch == XP_CHAR('0')) {
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ADDC (str, ch);
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ch = *fp++;
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break;
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}
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else break;
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ch = *fp++;
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}
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/* check the width */
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if (ch == XP_CHAR('*')) ADDC (str, ch);
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else {
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while (xp_isdigit(ch)) {
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ADDC (str, ch);
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ch = *fp++;
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}
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}
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/* precision */
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if (ch == XP_CHAR('.')) {
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ADDC (str, ch);
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ch = *fp++;
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if (ch == XP_CHAR('*')) ADDC (str, ch);
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else {
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while (xp_isdigit(ch)) {
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ADDC (str, ch);
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ch = *fp++;
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}
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}
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}
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/* modifier */
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for (modifier = 0;;) {
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if (ch == XP_CHAR('h')) modifier = MOD_SHORT;
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else if (ch == XP_CHAR('l')) {
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modifier = (modifier == MOD_LONG)? MOD_LONGLONG: MOD_LONG;
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}
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else break;
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ch = *fp++;
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}
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/* type */
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if (ch == XP_CHAR('%')) ADDC (str, ch);
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else if (ch == XP_CHAR('c') || ch == XP_CHAR('s')) {
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#if !defined(XP_CHAR_IS_MCHAR) && !defined(_WIN32)
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ADDC (str, 'l');
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#endif
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ADDC (str, ch);
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}
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else if (ch == XP_CHAR('C') || ch == XP_CHAR('S')) {
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#ifdef _WIN32
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ADDC (str, ch);
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#else
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#ifdef XP_CHAR_IS_MCHAR
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ADDC (str, 'l');
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#endif
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ADDC (str, xp_tolower(ch));
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#endif
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}
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else if (ch == XP_CHAR('d') || ch == XP_CHAR('i') ||
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ch == XP_CHAR('o') || ch == XP_CHAR('u') ||
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ch == XP_CHAR('x') || ch == XP_CHAR('X')) {
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if (modifier == MOD_SHORT) {
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ADDC (str, 'h');
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}
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else if (modifier == MOD_LONG) {
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ADDC (str, 'l');
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}
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else if (modifier == MOD_LONGLONG) {
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#if defined(_WIN32) && !defined(__LCC__)
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ADDC (str, 'I');
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ADDC (str, '6');
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ADDC (str, '4');
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#else
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ADDC (str, 'l');
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ADDC (str, 'l');
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#endif
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}
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ADDC (str, ch);
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}
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else if (ch == XP_CHAR('\0')) break;
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else ADDC (str, ch);
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}
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tmp = XP_STR_BUF(&str);
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xp_str_forfeit (&str);
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return tmp;
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}
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#endif
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