599 lines
11 KiB
C
599 lines
11 KiB
C
/*
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* $Id: sa.c,v 1.29 2006-08-13 16:04:32 bacon Exp $
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*/
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#include <xp/awk/awk_i.h>
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#ifdef XP_AWK_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_T('\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_strncpy (tmp, str, len);
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return tmp;
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}
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xp_char_t* xp_strxdup2 (
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const xp_char_t* str1, xp_size_t len1,
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const xp_char_t* str2, xp_size_t len2)
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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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(len1 + len2 + 1) * xp_sizeof(xp_char_t));
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if (tmp == XP_NULL) return XP_NULL;
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xp_strncpy (tmp, str1, len1);
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xp_strncpy (tmp + len1, str2, len2);
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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_T('\0'));
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return buf - org - 1;
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}
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xp_size_t xp_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_T('\0');
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return len;
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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)
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{
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if (*s1 == XP_C('\0')) return 0;
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s1++, s2++;
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}
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return (*s1 > *s2)? 1: -1;
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}
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int xp_strxncmp (
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const xp_char_t* s1, xp_size_t len1,
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const xp_char_t* s2, xp_size_t len2)
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{
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const xp_char_t* end1 = s1 + len1;
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const xp_char_t* end2 = s2 + len2;
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while (s1 < end1 && s2 < end2 && *s1 == *s2) s1++, s2++;
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if (s1 == end1 && s2 == end2) return 0;
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if (*s1 == *s2) return (s1 < end1)? 1: -1;
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return (*s1 > *s2)? 1: -1;
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}
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xp_char_t* xp_strxnstr (
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const xp_char_t* str, xp_size_t strsz,
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const xp_char_t* sub, xp_size_t subsz)
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{
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const xp_char_t* end, * subp;
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if (subsz == 0) return (xp_char_t*)str;
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if (strsz < subsz) return XP_NULL;
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end = str + strsz - subsz;
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subp = sub + subsz;
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while (str <= end) {
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const xp_char_t* x = str;
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const xp_char_t* y = sub;
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while (xp_true) {
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if (y >= subp) return (xp_char_t*)str;
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if (*x != *y) break;
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x++; y++;
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}
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str++;
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}
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return XP_NULL;
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}
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xp_char_t* xp_strtok (const xp_char_t* s,
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const xp_char_t* delim, xp_char_t** tok, xp_size_t* tok_len)
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{
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const xp_char_t* p = s, *d;
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const xp_char_t* sp = XP_NULL, * ep = XP_NULL;
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xp_char_t c;
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int delim_mode;
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/* skip preceding space xp_char_tacters */
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while (/* *p != XP_T('\0') && */ xp_isspace(*p)) p++;
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if (delim == XP_NULL) delim_mode = 0;
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else {
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delim_mode = 1;
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for (d = delim; *d != XP_T('\0'); d++)
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if (!xp_isspace(*d)) delim_mode = 2;
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}
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if (delim_mode == 0) {
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/* when XP_NULL is given as "delim", it has an effect of cutting
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preceding and trailing space characters off "s". */
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while ((c = *p) != XP_T('\0'))
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{
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if (!xp_isspace(c))
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{
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if (sp == XP_NULL) sp = p;
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ep = p;
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}
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p++;
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}
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}
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else if (delim_mode == 1)
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{
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while ((c = *p) != XP_T('\0'))
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{
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if (xp_isspace(c)) break;
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if (sp == XP_NULL) sp = p;
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ep = p++;
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}
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}
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else /* if (delim_mode == 2) */
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{
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while ((c = *p) != XP_T('\0')) {
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if (xp_isspace(c)) {
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p++;
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continue;
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}
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for (d = delim; *d; d++) {
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if (c == *d) {
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goto exit_loop;
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}
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}
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if (sp == XP_NULL) sp = p;
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ep = p++;
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}
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}
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exit_loop:
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if (sp == XP_NULL) {
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*tok = XP_NULL;
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*tok_len = (xp_size_t)0;
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}
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else {
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*tok = (xp_char_t*)sp;
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*tok_len = ep - sp + 1;
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}
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return (c == XP_T('\0'))? XP_NULL: ((xp_char_t*)++p);
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}
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xp_char_t* xp_strxtok (const xp_char_t* s, xp_size_t len,
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const xp_char_t* delim, xp_char_t** tok, xp_size_t* tok_len)
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{
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const xp_char_t* p = s, *d;
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const xp_char_t* end = s + len;
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const xp_char_t* sp = XP_NULL, * ep = XP_NULL;
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xp_char_t c;
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int delim_mode;
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/* skip preceding space xp_char_tacters */
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while (p < end && xp_isspace(*p)) p++;
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if (delim == XP_NULL) delim_mode = 0;
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else
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{
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delim_mode = 1;
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for (d = delim; *d != XP_T('\0'); d++)
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if (!xp_isspace(*d)) delim_mode = 2;
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}
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if (delim_mode == 0)
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{
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/* when XP_NULL is given as "delim", it has an effect of cutting
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preceding and trailing space xp_char_tacters off "s". */
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while (p < end)
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{
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c = *p;
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if (!xp_isspace(c))
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{
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if (sp == XP_NULL) sp = p;
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ep = p;
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}
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p++;
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}
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}
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else if (delim_mode == 1)
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{
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while (p < end)
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{
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c = *p;
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if (xp_isspace(c)) break;
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if (sp == XP_NULL) sp = p;
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ep = p++;
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}
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}
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else /* if (delim_mode == 2) */
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{
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while (p < end)
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{
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c = *p;
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if (xp_isspace(c))
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{
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p++;
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continue;
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}
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for (d = delim; *d != XP_T('\0'); d++)
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{
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if (c == *d) goto exit_loop;
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}
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if (sp == XP_NULL) sp = p;
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ep = p++;
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}
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}
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exit_loop:
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if (sp == XP_NULL)
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{
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*tok = XP_NULL;
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*tok_len = (xp_size_t)0;
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}
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else
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{
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*tok = (xp_char_t*)sp;
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*tok_len = ep - sp + 1;
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}
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return (p >= end)? XP_NULL: ((xp_char_t*)++p);
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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(dos) || defined(__dos)
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n = vsprintf (buf, nf, ap); /* TODO: write your own vsnprintf */
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#elif 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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{
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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 (xp_sizeof(xp_char_t) * (capa + 1));
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if (str->buf == XP_NULL)
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{
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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_T('\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_cpy (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_ncpy (str, s, xp_strlen(s));
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}
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xp_size_t xp_str_ncpy (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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if (len > str->capa)
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{
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buf = (xp_char_t*) xp_malloc (xp_sizeof(xp_char_t) * (len + 1));
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if (buf == XP_NULL) return (xp_size_t)-1;
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xp_free (str->buf);
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str->capa = len;
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str->buf = buf;
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}
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str->size = xp_strncpy (str->buf, s, len);
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str->buf[str->size] = XP_T('\0');
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return str->size;
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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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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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{
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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 += xp_strncpy (&str->buf[str->size], s, len);
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str->buf[str->size] = XP_T('\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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xp_size_t xp_str_nccat (xp_str_t* str, xp_char_t c, xp_size_t len)
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{
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while (len > 0)
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{
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if (xp_str_ncat (str, &c, 1) == (xp_size_t)-1)
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{
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return (xp_size_t)-1;
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}
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len--;
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}
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return str->size;
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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_T('\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_T('\0'))
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{
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while (*fp != XP_T('\0') && *fp != XP_T('%'))
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{
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ADDC (str, *fp++);
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}
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if (*fp == XP_T('\0')) break;
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xp_assert (*fp == XP_T('%'));
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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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{
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if (ch == XP_T(' ') || ch == XP_T('+') ||
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ch == XP_T('-') || ch == XP_T('#'))
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{
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ADDC (str, ch);
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}
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else if (ch == XP_T('0'))
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{
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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_T('*')) ADDC (str, ch);
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else
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{
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while (xp_isdigit(ch))
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{
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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_T('.'))
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{
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ADDC (str, ch);
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ch = *fp++;
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if (ch == XP_T('*')) ADDC (str, ch);
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else
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{
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while (xp_isdigit(ch))
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{
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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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{
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if (ch == XP_T('h')) modifier = MOD_SHORT;
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else if (ch == XP_T('l'))
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{
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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 */
|
|
if (ch == XP_T('%')) ADDC (str, ch);
|
|
else if (ch == XP_T('c') || ch == XP_T('s'))
|
|
{
|
|
#if !defined(XP_CHAR_IS_MCHAR) && !defined(_WIN32)
|
|
ADDC (str, 'l');
|
|
#endif
|
|
ADDC (str, ch);
|
|
}
|
|
else if (ch == XP_T('C') || ch == XP_T('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_T('d') || ch == XP_T('i') ||
|
|
ch == XP_T('o') || ch == XP_T('u') ||
|
|
ch == XP_T('x') || ch == XP_T('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_T('\0')) break;
|
|
else ADDC (str, ch);
|
|
}
|
|
|
|
tmp = XP_STR_BUF(&str);
|
|
xp_str_forfeit (&str);
|
|
return tmp;
|
|
}
|
|
|
|
#endif
|