#pragma once

#include <alloca.h>

#include <stdbool.h>

#include <stddef.h>

#include <string.h>

#include "macro.h"

#define WHITESPACE " \t\n\r"

#define NEWLINE "\n\r"

#define QUOTES "\"\'"

#define COMMENTS "#;"

#define GLOB_CHARS "*?["

#define DIGITS "0123456789"

#define LOWERCASE_LETTERS "abcdefghijklmnopqrstuvwxyz"

#define UPPERCASE_LETTERS "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

#define LETTERS LOWERCASE_LETTERS UPPERCASE_LETTERS

#define ALPHANUMERICAL LETTERS DIGITS

#define streq(a,b) (strcmp((a),(b)) == 0)

#define strneq(a, b, n) (strncmp((a), (b), (n)) == 0)

#define strcaseeq(a,b) (strcasecmp((a),(b)) == 0)

#define strncaseeq(a, b, n) (strncasecmp((a), (b), (n)) == 0)

int strcmp_ptr(const char *a, const char *b) _pure_;

static inline bool streq_ptr(const char *a, const char *b) {

return strcmp_ptr(a, b) == 0;

}

static inline const char* strempty(const char *s) {

return s ? s : "";

}

static inline const char* strnull(const char *s) {

return s ? s : "(null)";

}

static inline const char *strna(const char *s) {

return s ? s : "n/a";

}

static inline bool isempty(const char *p) {

return !p || !p[0];

}

static inline char *startswith(const char *s, const char *prefix) {

size_t l;

l = strlen(prefix);

if (strncmp(s, prefix, l) == 0)

return (char*) s + l;

return NULL;

}

static inline char *startswith_no_case(const char *s, const char *prefix) {

size_t l;

l = strlen(prefix);

if (strncasecmp(s, prefix, l) == 0)

return (char*) s + l;

return NULL;

}

char *endswith(const char *s, const char *postfix) _pure_;

char *endswith_no_case(const char *s, const char *postfix) _pure_;

char *first_word(const char *s, const char *word) _pure_;

const char* split(const char **state, size_t *l, const char *separator, bool quoted);

#define FOREACH_WORD(word, length, s, state) \

_FOREACH_WORD(word, length, s, WHITESPACE, false, state)

#define FOREACH_WORD_SEPARATOR(word, length, s, separator, state) \

_FOREACH_WORD(word, length, s, separator, false, state)

#define FOREACH_WORD_QUOTED(word, length, s, state) \

_FOREACH_WORD(word, length, s, WHITESPACE, true, state)

#define _FOREACH_WORD(word, length, s, separator, quoted, state) \

for ((state) = (s), (word) = split(&(state), &(length), (separator), (quoted)); (word); (word) = split(&(state), &(length), (separator), (quoted)))

char *strappend(const char *s, const char *suffix);

char *strnappend(const char *s, const char *suffix, size_t length);

char *strjoin(const char *x, ...) _sentinel_;

#define strjoina(a, ...) \

({ \

const char *_appendees_[] = { a, __VA_ARGS__ }; \

char *_d_, *_p_; \

int _len_ = 0; \

unsigned _i_; \

for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \

_len_ += strlen(_appendees_[_i_]); \

_p_ = _d_ = alloca(_len_ + 1); \

for (_i_ = 0; _i_ < ELEMENTSOF(_appendees_) && _appendees_[_i_]; _i_++) \

_p_ = stpcpy(_p_, _appendees_[_i_]); \

*_p_ = 0; \

_d_; \

})

char *strstrip(char *s);

char *delete_chars(char *s, const char *bad);

char *truncate_nl(char *s);

char ascii_tolower(char x);

char *ascii_strlower(char *s);

char *ascii_strlower_n(char *s, size_t n);

int ascii_strcasecmp_n(const char *a, const char *b, size_t n);

int ascii_strcasecmp_nn(const char *a, size_t n, const char *b, size_t m);

bool chars_intersect(const char *a, const char *b) _pure_;

static inline bool _pure_ in_charset(const char *s, const char* charset) {

assert(s);

assert(charset);

return s[strspn(s, charset)] == '\0';

}

bool string_has_cc(const char *p, const char *ok) _pure_;

char *ellipsize_mem(const char *s, size_t old_length_bytes, size_t new_length_columns, unsigned percent);

char *ellipsize(const char *s, size_t length, unsigned percent);

bool nulstr_contains(const char*nulstr, const char *needle);

char* strshorten(char *s, size_t l);

char *strreplace(const char *text, const char *old_string, const char *new_string);

char *strip_tab_ansi(char **p, size_t *l);

char *strextend(char **x, ...) _sentinel_;

char *strrep(const char *s, unsigned n);

int split_pair(const char *s, const char *sep, char **l, char **r);

int free_and_strdup(char **p, const char *s);

static inline void *memmem_safe(const void *haystack, size_t haystacklen, const void *needle, size_t needlelen) {

if (needlelen <= 0)

return (void*) haystack;

if (haystacklen < needlelen)

return NULL;

assert(haystack);

assert(needle);

return memmem(haystack, haystacklen, needle, needlelen);

}

void* memory_erase(void *p, size_t l);

char *string_erase(char *x);

char *string_free_erase(char *s);

DEFINE_TRIVIAL_CLEANUP_FUNC(char *, string_free_erase);

#define _cleanup_string_free_erase_ _cleanup_(string_free_erasep)

bool string_is_safe(const char *p) _pure_;