diff options
Diffstat (limited to 'include/stc/crawstr.h')
| -rw-r--r-- | include/stc/crawstr.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/include/stc/crawstr.h b/include/stc/crawstr.h new file mode 100644 index 00000000..9dbdb6f7 --- /dev/null +++ b/include/stc/crawstr.h @@ -0,0 +1,108 @@ +/* MIT License + * + * Copyright (c) 2023 Tyge Løvset + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#define _i_inc_utf8 +#include "utf8.h" + +#ifndef CRAWSTR_H_INCLUDED +#define CRAWSTR_H_INCLUDED + +#define crawstr_init() c_rs("") +#define crawstr_clone(rs) c_default_clone(rs) +#define crawstr_drop(self) c_default_drop(self) +#define crawstr_toraw(self) (self)->str + +STC_INLINE crawstr crawstr_from(const char* str) + { return c_rs_2(str, c_strlen(str)); } +STC_INLINE void crawstr_clear(crawstr* self) { *self = c_rs(""); } +STC_INLINE csview crawstr_sv(crawstr rs) { return c_sv_2(rs.str, rs.size); } + +STC_INLINE intptr_t crawstr_size(crawstr rs) { return rs.size; } +STC_INLINE bool crawstr_empty(crawstr rs) { return rs.size == 0; } + +STC_INLINE bool crawstr_equals(crawstr rs, const char* str) { + intptr_t n = c_strlen(str); + return rs.size == n && !c_memcmp(rs.str, str, n); +} + +STC_INLINE intptr_t crawstr_find(crawstr rs, const char* search) { + char* res = strstr(rs.str, search); + return res ? (res - rs.str) : c_NPOS; +} + +STC_INLINE bool crawstr_contains(crawstr rs, const char* str) + { return crawstr_find(rs, str) != c_NPOS; } + +STC_INLINE bool crawstr_starts_with(crawstr rs, const char* str) { + intptr_t n = c_strlen(str); + return n > rs.size ? false : !c_memcmp(rs.str, str, n); +} + +STC_INLINE bool crawstr_ends_with(crawstr rs, const char* str) { + intptr_t n = c_strlen(str); + return n > rs.size ? false : !c_memcmp(rs.str + rs.size - n, str, n); +} + +/* utf8 iterator */ +STC_INLINE crawstr_iter crawstr_begin(const crawstr* self) { + if (!self->size) return c_LITERAL(crawstr_iter){.ref = NULL}; + return c_LITERAL(crawstr_iter){.u8 = {{self->str, utf8_chr_size(self->str)}}}; +} +STC_INLINE crawstr_iter crawstr_end(const crawstr* self) { + (void)self; return c_LITERAL(crawstr_iter){.ref = NULL}; +} +STC_INLINE void crawstr_next(crawstr_iter* it) { + it->ref += it->chr.size; + it->chr.size = utf8_chr_size(it->ref); + if (!*it->ref) it->ref = NULL; +} +STC_INLINE crawstr_iter crawstr_advance(crawstr_iter it, intptr_t pos) { + int inc = -1; + if (pos > 0) pos = -pos, inc = 1; + while (pos && *it.ref) pos += (*(it.ref += inc) & 0xC0) != 0x80; + it.chr.size = utf8_chr_size(it.ref); + if (!*it.ref) it.ref = NULL; + return it; +} + +/* utf8 ignore case cmp: depends on src/utf8code.c */ +STC_INLINE int crawstr_icmp(const crawstr* x, const crawstr* y) + { return utf8_icmp_sv(c_sv_2(x->str, x->size), c_sv_2(y->str, y->size)); } + +STC_INLINE int crawstr_cmp(const crawstr* x, const crawstr* y) { + intptr_t n = x->size < y->size ? x->size : y->size; + int c = c_memcmp(x->str, y->str, n); + return c ? c : (int)(x->size - y->size); +} + +STC_INLINE bool crawstr_eq(const crawstr* x, const crawstr* y) + { return x->size == y->size && !c_memcmp(x->str, y->str, x->size); } + +STC_INLINE uint64_t crawstr_hash(const crawstr *self) + { return stc_hash(self->str, self->size); } + +#endif // CRAWSTR_H_INCLUDED +#undef i_static +#undef i_header +#undef i_implement +#undef i_import +#undef i_opt |