1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ucx/string.c Thu Jan 05 14:53:54 2012 +0100
1.3 @@ -0,0 +1,99 @@
1.4 +/*
1.5 + * File: sstring.c
1.6 + * Author: olaf
1.7 + *
1.8 + * Created on 17. Juni 2010, 13:27
1.9 + */
1.10 +
1.11 +#include <stdlib.h>
1.12 +#include <string.h>
1.13 +#include <stdarg.h>
1.14 +
1.15 +#include "string.h"
1.16 +
1.17 +sstr_t sstr (char *s) {
1.18 + sstr_t string;
1.19 + string.ptr = s;
1.20 + string.length = strlen(s);
1.21 + return string;
1.22 +}
1.23 +
1.24 +sstr_t sstrn (char *s, size_t n) {
1.25 + sstr_t string;
1.26 + string.ptr = s;
1.27 + string.length = n;
1.28 + return string;
1.29 +}
1.30 +
1.31 +size_t sstrnlen (size_t n, sstr_t s, ...) {
1.32 + va_list ap;
1.33 + size_t size = s.length;
1.34 + va_start(ap, s);
1.35 +
1.36 + for (int i=0;i<n-1;i++) {
1.37 + sstr_t str = va_arg(ap, sstr_t);
1.38 + size += str.length;
1.39 + }
1.40 +
1.41 + return size;
1.42 +}
1.43 +
1.44 +sstr_t sstrcat (sstr_t s, ...) {
1.45 + va_list ap;
1.46 + va_start(ap, s);
1.47 + s.ptr[0] = 0;
1.48 +
1.49 + sstr_t str = va_arg (ap, sstr_t);
1.50 + while (str.ptr != NULL) {
1.51 + s.ptr = strncat (s.ptr, str.ptr, s.length);
1.52 + str = va_arg (ap, sstr_t);
1.53 + }
1.54 +
1.55 + return s;
1.56 +}
1.57 +
1.58 +sstr_t sstrncat (size_t n, sstr_t s, sstr_t c1, ...) {
1.59 + va_list ap;
1.60 + va_start(ap, c1);
1.61 + s.ptr[0] = 0;
1.62 +
1.63 + s.ptr = strncat (s.ptr, c1.ptr, s.length);
1.64 + for (int i=0;i<n-1;i++) {
1.65 + sstr_t str = va_arg (ap, sstr_t);
1.66 + s.ptr = strncat (s.ptr, str.ptr, s.length);
1.67 + }
1.68 +
1.69 + return s;
1.70 +}
1.71 +
1.72 +sstr_t sstrsubs (sstr_t s, size_t start) {
1.73 + return sstrsubsl (s, start, s.length-start);
1.74 +}
1.75 +
1.76 +sstr_t sstrsubsl (sstr_t s, size_t start, size_t length) {
1.77 + sstr_t new_sstr;
1.78 + if (start < 0 || start >= s.length || length < 0) {
1.79 + return s;
1.80 + }
1.81 + if (length > s.length-start) {
1.82 + length = s.length-start;
1.83 + }
1.84 + new_sstr.ptr = &s.ptr[start];
1.85 + new_sstr.length = length;
1.86 + return new_sstr;
1.87 +}
1.88 +
1.89 +int sstrcmp(sstr_t s1, sstr_t s2) {
1.90 + return strncmp(s1.ptr, s2.ptr, s1.length>s2.length ? s2.length: s1.length);
1.91 +}
1.92 +
1.93 +sstr_t sstrdub(sstr_t s) {
1.94 + sstr_t newstring;
1.95 + newstring.ptr = malloc(s.length + 1);
1.96 + newstring.length = s.length;
1.97 + newstring.ptr[newstring.length] = 0;
1.98 +
1.99 + memcpy(newstring.ptr, s.ptr, s.length);
1.100 +
1.101 + return newstring;
1.102 +}
