/* Simple extendable string.
 * I think this doesn't leak?
 */
#ifndef _EXSTRING_H
#define _EXSTRING_H
#include <stddef.h>

typedef struct {
	size_t currentSize;

	char cstr[];
} exStringOpt;

typedef char* exString;

#define EXS(s) (* (char**)(s))

typedef char (*exsp_select)(void* state, char mapchar);
typedef int  (*exsp_where)(void* state, char mapchar);

exString* exs_new(const char* from);
exString* exs_clone(exString* from);
void exs_free(exString* str);
void exs_nappend(exString* str, const char* from, size_t length);
void exs_append(exString* str, const char* from);
void exs_appendf(exString* str, const char* fmt, ...);
size_t exs_realsize(exString* str);
void exs_reduce(exString* str, size_t by);
void exs_nappendc(exString* str, char c, int times);
void exs_appendc(exString* str, char c);
void exs_recalc(exString* str);
void exs_reset(exString * str);
exString* exs_where(exString* str, exsp_where func, void* state);
exString* exs_select(exString *str, exsp_select func, void* state);
void exs_whereip(exString* str, exsp_where, void* state);
void exs_selectip(exString* str, exsp_select, void* state);

char exspf_upper(void* state, char c);
char exspf_lower(void* state, char c);
int  exspf_only(void* state, char c);
int  exspf_only_not(void* state, char c);

#endif /* _EXSTRING_H */