1.1 --- a/src/string.c Wed Aug 31 23:12:05 2022 +0200
1.2 +++ b/src/string.c Sat Sep 03 14:56:07 2022 +0200
1.3 @@ -32,6 +32,13 @@
1.4 #include <string.h>
1.5 #include <stdarg.h>
1.6 #include <stdint.h>
1.7 +#include <ctype.h>
1.8 +
1.9 +#ifndef _WIN32
1.10 +
1.11 +#include <strings.h> /* for strncasecmp() */
1.12 +
1.13 +#endif /* _WIN32 */
1.14
1.15 cxmutstr cx_mutstr(char *cstring) {
1.16 return (cxmutstr) {cstring, strlen(cstring)};
1.17 @@ -336,3 +343,90 @@
1.18 return cx_strsplit_a(allocator, cx_strcast(string),
1.19 delim, limit, (cxstring **) output);
1.20 }
1.21 +
1.22 +int cx_strcmp(cxstring s1, cxstring s2) {
1.23 + if (s1.length == s2.length) {
1.24 + return memcmp(s1.ptr, s2.ptr, s1.length);
1.25 + } else if (s1.length > s2.length) {
1.26 + return 1;
1.27 + } else {
1.28 + return -1;
1.29 + }
1.30 +}
1.31 +
1.32 +int cx_strcasecmp(cxstring s1, cxstring s2) {
1.33 + if (s1.length == s2.length) {
1.34 +#ifdef _WIN32
1.35 + return _strnicmp(s1.ptr, s2.ptr, s1.length);
1.36 +#else
1.37 + return strncasecmp(s1.ptr, s2.ptr, s1.length);
1.38 +#endif
1.39 + } else if (s1.length > s2.length) {
1.40 + return 1;
1.41 + } else {
1.42 + return -1;
1.43 + }
1.44 +}
1.45 +
1.46 +cxmutstr cx_strdup_a(CxAllocator *allocator, cxstring string) {
1.47 + cxmutstr result = {
1.48 + cxMalloc(allocator, string.length + 1),
1.49 + string.length
1.50 + };
1.51 + if (result.ptr == NULL) {
1.52 + result.length = 0;
1.53 + return result;
1.54 + }
1.55 + memcpy(result.ptr, string.ptr, string.length);
1.56 + result.ptr[string.length] = '\0';
1.57 + return result;
1.58 +}
1.59 +
1.60 +cxstring cx_strtrim(cxstring string) {
1.61 + cxstring result = string;
1.62 + // TODO: optimize by comparing multiple bytes at once
1.63 + while (result.length > 0 && isspace(*result.ptr)) {
1.64 + result.ptr++;
1.65 + result.length--;
1.66 + }
1.67 + while (result.length > 0 && isspace(result.ptr[result.length - 1])) {
1.68 + result.length--;
1.69 + }
1.70 + return result;
1.71 +}
1.72 +
1.73 +cxmutstr cx_strtrim_m(cxmutstr string) {
1.74 + cxstring result = cx_strtrim(cx_strcast(string));
1.75 + return (cxmutstr) {(char *) result.ptr, result.length};
1.76 +}
1.77 +
1.78 +bool cx_strprefix(cxstring string, cxstring prefix) {
1.79 + if (string.length < prefix.length) return false;
1.80 + return memcmp(string.ptr, prefix.ptr, prefix.length) == 0;
1.81 +}
1.82 +
1.83 +bool cx_strsuffix(cxstring string, cxstring suffix) {
1.84 + if (string.length < suffix.length) return false;
1.85 + return memcmp(string.ptr + string.length - suffix.length,
1.86 + suffix.ptr, suffix.length) == 0;
1.87 +}
1.88 +
1.89 +bool cx_casestrprefix(cxstring string, cxstring prefix) {
1.90 + if (string.length < prefix.length) return false;
1.91 +#ifdef _WIN32
1.92 + return _strnicmp(string.ptr, prefix.ptr, prefix.length) == 0;
1.93 +#else
1.94 + return strncasecmp(string.ptr, prefix.ptr, prefix.length) == 0;
1.95 +#endif
1.96 +}
1.97 +
1.98 +bool cx_casestrsuffix(cxstring string, cxstring suffix) {
1.99 + if (string.length < suffix.length) return false;
1.100 +#ifdef _WIN32
1.101 + return _strnicmp(string.ptr+string.length-suffix.length,
1.102 + suffix.ptr, suffix.length) == 0;
1.103 +#else
1.104 + return strncasecmp(string.ptr + string.length - suffix.length,
1.105 + suffix.ptr, suffix.length) == 0;
1.106 +#endif
1.107 +}
