#ifndef DOC_H
#define DOC_H

#include "buf.h"

#define DOC_LINK_NONE 0xffff

struct doc_line {
	unsigned short prev, link, len;
	char txt[];
};

enum doc_type {
	DOC_UNKNOWN,
	DOC_GOPHERDOC,
	DOC_GEMTEXT,
	DOC_PLAIN,
};

struct doc {
	buf_t txt, lnk;
	size_t latest;
};

void doc_init(struct doc *);
void doc_fini(struct doc *);

void doc_new_line(struct doc *);
void doc_add_line(struct doc *, const char *);
void doc_add_text(struct doc *, const char *);
void doc_add_textn(struct doc *, const char *, size_t);

struct doc_line *doc_line_at(struct doc *d, size_t ofs);
int doc_line_prev(struct doc *d, size_t *ofs);
int doc_line_next(struct doc *d, size_t *ofs);

#endif