From 317c0644ccf108aa23ef3fd8358bd66c2840bfc0 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 14 Apr 2024 15:40:54 +0200 Subject: Adding upstream version 5:7.2.4. Signed-off-by: Daniel Baumann --- deps/lua/src/strbuf.h | 146 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100644 deps/lua/src/strbuf.h (limited to 'deps/lua/src/strbuf.h') diff --git a/deps/lua/src/strbuf.h b/deps/lua/src/strbuf.h new file mode 100644 index 0000000..c10f83f --- /dev/null +++ b/deps/lua/src/strbuf.h @@ -0,0 +1,146 @@ +/* strbuf - String buffer routines + * + * Copyright (c) 2010-2012 Mark Pulford + * + * 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. + */ + +#include +#include + +/* Size: Total bytes allocated to *buf + * Length: String length, excluding optional NULL terminator. + * Dynamic: True if created via strbuf_new() + */ + +typedef struct { + char *buf; + size_t size; + size_t length; + int dynamic; + int reallocs; + int debug; +} strbuf_t; + +#ifndef STRBUF_DEFAULT_SIZE +#define STRBUF_DEFAULT_SIZE 1023 +#endif + +/* Initialise */ +extern strbuf_t *strbuf_new(size_t len); +extern void strbuf_init(strbuf_t *s, size_t len); + +/* Release */ +extern void strbuf_free(strbuf_t *s); +extern char *strbuf_free_to_string(strbuf_t *s, size_t *len); + +/* Management */ +extern void strbuf_resize(strbuf_t *s, size_t len); +static size_t strbuf_empty_length(strbuf_t *s); +static size_t strbuf_length(strbuf_t *s); +static char *strbuf_string(strbuf_t *s, size_t *len); +static void strbuf_ensure_empty_length(strbuf_t *s, size_t len); +static char *strbuf_empty_ptr(strbuf_t *s); +static void strbuf_extend_length(strbuf_t *s, size_t len); + +/* Update */ +static void strbuf_append_mem(strbuf_t *s, const char *c, size_t len); +extern void strbuf_append_string(strbuf_t *s, const char *str); +static void strbuf_append_char(strbuf_t *s, const char c); +static void strbuf_ensure_null(strbuf_t *s); + +/* Reset string for before use */ +static inline void strbuf_reset(strbuf_t *s) +{ + s->length = 0; +} + +static inline int strbuf_allocated(strbuf_t *s) +{ + return s->buf != NULL; +} + +/* Return bytes remaining in the string buffer + * Ensure there is space for a NULL terminator. */ +static inline size_t strbuf_empty_length(strbuf_t *s) +{ + return s->size - s->length - 1; +} + +static inline void strbuf_ensure_empty_length(strbuf_t *s, size_t len) +{ + if (len > strbuf_empty_length(s)) + strbuf_resize(s, s->length + len); +} + +static inline char *strbuf_empty_ptr(strbuf_t *s) +{ + return s->buf + s->length; +} + +static inline void strbuf_extend_length(strbuf_t *s, size_t len) +{ + s->length += len; +} + +static inline size_t strbuf_length(strbuf_t *s) +{ + return s->length; +} + +static inline void strbuf_append_char(strbuf_t *s, const char c) +{ + strbuf_ensure_empty_length(s, 1); + s->buf[s->length++] = c; +} + +static inline void strbuf_append_char_unsafe(strbuf_t *s, const char c) +{ + s->buf[s->length++] = c; +} + +static inline void strbuf_append_mem(strbuf_t *s, const char *c, size_t len) +{ + strbuf_ensure_empty_length(s, len); + memcpy(s->buf + s->length, c, len); + s->length += len; +} + +static inline void strbuf_append_mem_unsafe(strbuf_t *s, const char *c, size_t len) +{ + memcpy(s->buf + s->length, c, len); + s->length += len; +} + +static inline void strbuf_ensure_null(strbuf_t *s) +{ + s->buf[s->length] = 0; +} + +static inline char *strbuf_string(strbuf_t *s, size_t *len) +{ + if (len) + *len = s->length; + + return s->buf; +} + +/* vi:ai et sw=4 ts=4: + */ -- cgit v1.2.3