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/* Copyright (c) 2021 nytpu <alex@nytpu.com>
* SPDX-License-Identifier: GPL-3.0-only
* For more license details, see LICENSE or <https://www.gnu.org/licenses/gpl-3.0.html>.
*/
#pragma once
#ifndef _COMMON_H
#define _COMMON_H
#include <stdbool.h>
#include <stddef.h>
// ensure that regex.h and other headers follow POSIX 2008/2017
#define _POSIX_C_SOURCE 200809L
// XXX: possibly stop mandating C11/C17. AFAIK the only C11 features I'm using
// are anonymous structs/unions and noreturn, which seem to be supported
// in GCC's & Clang's extensions to C99?
#define _ISOC11_SOURCE
// should be set to proper number by preprocessor
#ifndef VERSION
#define VERSION " Unknown"
#endif // VERSION
// default to 80 columns
#define DEFAULT_WIDTH 80
typedef long RowNum;
struct Row {
RowNum idx; // Row number (zero-based)
size_t size; // Size of row (excluding trailing \0)
char *chars; // Row content (no trailing \n) -- MUST FREE
};
// doubles as an editor state/editor config struct as well
struct Editor {
/* actual buffer stuff */
char *filename; // -- MUST FREE
RowNum numrows;
struct Row *rows; // -- MUST FREE
/* command line options */
bool prompt_enabled;
char *prompt; // don't free - usually pointer to argv
bool quiet;
bool verbose;
bool loose;
/* misc state information */
bool dirty; // has the buffer been modified since last write?
int scols; // number of columns we can display on screen
RowNum crow; // current row address - ONE INDEXED
const char *last_err; // verbose error message for previous error
};
extern struct Editor E;
// print the current perror then exit failure
void die(const char *m);
// initialize global struct Buffer to null/zero values
void editor_init(void);
void editor_deinit(void);
// print the standard "?\n", and also print a given msg if verbosity is enabled
// the msg will be saved for a future "h" command.
void error(const char *msg);
#endif // _COMMON_H
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