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2 commits
8573bc1c5c
...
546a6c5f1a
Author | SHA1 | Date | |
---|---|---|---|
546a6c5f1a | |||
86dce61030 |
16 changed files with 1215 additions and 1407 deletions
5
Makefile
5
Makefile
|
@ -8,11 +8,10 @@ BINDIR = $(PREFIX)/bin
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CFLAGS = -Os -march=native -mtune=native -pipe -s -flto -std=c99 -pedantic -Wall -D_DEFAULT_SOURCE
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SRC != find src -name *.c
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INCLUDE = include
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SRC = vip.c
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$(TARGET): $(SRC) config.h
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$(CC) $(SRC) -o $@ $(CFLAGS) -I$(INCLUDE) -I.
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$(CC) $(SRC) -o $@ $(CFLAGS)
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dist:
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mkdir -p $(TARGET)-$(VERSION)
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@ -1,8 +0,0 @@
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#ifndef BAR_H_
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#define BAR_H_
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void draw_status_bar(struct abuf *ab);
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void draw_message_bar(struct abuf *ab);
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void set_status_bar_message(const char *fmt, ...);
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#endif
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@ -1,16 +0,0 @@
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#ifndef EDITOR_H_
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#define EDITOR_H_
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void refresh_screen(void);
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void move_cursor(int key);
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void scroll(void);
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void insert_char(int c);
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void insert_new_line(void);
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void shift_new_line(void);
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void del_char(void);
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void init_editor(void);
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void open_editor(char *filename);
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char *prompt_editor(char *prompt, void (*callback)(char *, int));
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void find_editor(void);
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#endif
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@ -1,9 +0,0 @@
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#ifndef IO_H_
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#define IO_H_
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int read_key(void);
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void save_file(void);
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void process_key(void);
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void draw_rows(struct abuf *ab);
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#endif
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@ -1,25 +0,0 @@
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#ifndef ROW_H_
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#define ROW_H_
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typedef struct row {
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int idx;
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int size;
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int render_size;
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char *chars;
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char *render;
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unsigned char *hl;
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int opened_comment;
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} row;
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int row_cx_to_rx(row *row, int cx);
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int row_rx_to_cx(row *row, int rx);
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void update_row(row *row);
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void insert_row(int at, char *s, size_t len);
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void free_row(row *row);
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void del_row(int at);
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void row_insert_char(row *row, int at, int c);
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void row_append_str(row *row, char *s, size_t len);
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void row_del_char(row *row, int at);
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char *rows_to_str(int *buflen);
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#endif
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@ -1,26 +0,0 @@
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#ifndef SYNTAX_H_
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#define SYNTAX_H_
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#include <stdio.h>
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#include "row.h"
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#define HL_NUMBERS (1 << 0)
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#define HL_STRINGS (1 << 1)
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typedef struct language {
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char *filetype;
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int flags;
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char *singleline_comment_start;
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char *multiline_comment_start;
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char *multiline_comment_end;
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char **keywords;
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char **extensions;
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} language;
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int is_separator(int c);
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void update_highlight(row *row);
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char *syntax_to_color(int hl, size_t *len);
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void select_syntax_highlight(void);
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#endif
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@ -1,12 +0,0 @@
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#ifndef TERM_H_
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#define TERM_H_
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#define CTRL_KEY(k) ((k) & 0x1f)
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void die(const char *s);
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void reset_term(void);
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void setup_term(void);
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int get_cursor_position(int *rows, int *cols);
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int get_window_size(int *rows, int *cols);
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#endif
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@ -1,75 +0,0 @@
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#ifndef VIP_H_
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#define VIP_H_
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#include <termios.h>
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#include <time.h>
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#define VERSION "0.0.1"
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#define COLOR_LEN 19
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enum keys {
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BACKSPACE = 127,
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ARROW_LEFT = 1000,
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ARROW_RIGHT,
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ARROW_UP,
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ARROW_DOWN,
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DEL_KEY,
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HOME_KEY,
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END_KEY,
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PAGE_UP,
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PAGE_DOWN
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};
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enum modes {
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NORMAL,
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INSERT,
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VISUAL,
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COMMAND
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};
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enum highlight {
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DEFAULT = 0,
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COMMENT,
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MLCOMMENT,
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KEYWORD1, /* default */
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KEYWORD2, /* types */
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STRING,
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NUMBER,
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MATCH,
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RESET
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};
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#include "row.h"
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#include "syntax.h"
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#include "config.h"
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typedef struct editor {
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int cx, cy; /* chars x, y */
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int rx; /* render x */
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int rowoff;
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int coloff;
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int screenrows, screencols;
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int rows;
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row *row;
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int dirty;
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int mode;
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char *filename;
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char statusmsg[80];
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time_t statusmsg_time;
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language *syntax;
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struct termios termios;
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} editor;
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struct abuf {
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char *b;
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int len;
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};
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#define ABUF_INIT { NULL, 0 }
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void abAppend(struct abuf *ab, const char *s, int len);
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void abFree(struct abuf *ab);
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extern editor vip;
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#endif
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115
src/bar.c
115
src/bar.c
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@ -1,115 +0,0 @@
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#include <stdio.h>
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#include <stdarg.h>
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#include <string.h>
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#include <time.h>
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#include "vip.h"
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extern editor vip;
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void draw_status_bar(struct abuf *ab)
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{
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abAppend(ab, "\x1b[7m", 4);
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abAppend(ab, "\x1b[1m", 4);
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int mode_len;
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if (vip.mode == NORMAL) {
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abAppend(ab, BLUE_BG, COLOR_LEN);
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char mode[9] = " NORMAL ";
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abAppend(ab, mode, 8);
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mode_len = 8;
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} else if (vip.mode == INSERT) {
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abAppend(ab, GREEN_BG, COLOR_LEN);
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char mode[9] = " INSERT ";
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abAppend(ab, mode, 8);
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mode_len = 8;
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} else if (vip.mode == COMMAND) {
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abAppend(ab, PEACH_BG, COLOR_LEN);
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char mode[10] = " COMMAND ";
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abAppend(ab, mode, 9);
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mode_len = 9;
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}
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abAppend(ab, "\x1b[22m", 5);
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char git_branch[80], git_diff[80], file[80], info[80], lines[80], coord[80];
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int gitb_len = snprintf(git_branch, sizeof(git_branch), " %s ", "master");
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int gitd_len = snprintf(git_diff, sizeof(git_diff), " %s ", "+1");
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int file_len = snprintf(file, sizeof(file), " %.20s %s",
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vip.filename ? vip.filename : "[No Name]", vip.dirty ? "[+]" : "");
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int info_len = snprintf(info, sizeof(info), " %s ", vip.syntax ? vip.syntax->filetype : "");
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int lines_len;
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if (vip.rows == 0 || vip.rows == vip.cy + 1) {
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lines_len = snprintf(lines, sizeof(lines), " %s ", vip.rows == 0 ? "Top" : "Bot");
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} else {
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lines_len = snprintf(lines, sizeof(lines), " %d%% ", ((vip.cy + 1) * 100 / vip.rows));
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}
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int coord_len = snprintf(coord, sizeof(coord), " %d:%d ", vip.cy + 1, vip.rx + 1);
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abAppend(ab, SURFACE_1_BG, COLOR_LEN); /* background */
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if (vip.mode == NORMAL) {
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abAppend(ab, BLUE_FG, COLOR_LEN); /* text */
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} else if (vip.mode == INSERT) {
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abAppend(ab, GREEN_FG, COLOR_LEN);
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} else if (vip.mode == COMMAND) {
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abAppend(ab, PEACH_FG, COLOR_LEN);
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}
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abAppend(ab, git_branch, gitb_len);
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abAppend(ab, "|", 1);
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abAppend(ab, GREEN_FG, COLOR_LEN);
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abAppend(ab, git_diff, gitd_len);
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abAppend(ab, BLACK_BG, COLOR_LEN);
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abAppend(ab, WHITE_FG, COLOR_LEN);
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abAppend(ab, file, file_len);
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while (file_len < vip.screencols) {
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if (vip.screencols - mode_len - file_len - gitb_len - gitd_len - 1 == info_len + lines_len + coord_len) {
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abAppend(ab, info, info_len);
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abAppend(ab, SURFACE_1_BG, COLOR_LEN);
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if (vip.mode == NORMAL) {
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abAppend(ab, BLUE_FG, COLOR_LEN);
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} else if (vip.mode == INSERT) {
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abAppend(ab, GREEN_FG, COLOR_LEN);
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} else if (vip.mode == COMMAND) {
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abAppend(ab, PEACH_FG, COLOR_LEN);
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}
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abAppend(ab, lines, lines_len);
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if (vip.mode == NORMAL) {
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abAppend(ab, BLUE_BG, COLOR_LEN);
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} else if (vip.mode == INSERT) {
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abAppend(ab, GREEN_BG, COLOR_LEN);
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} else if (vip.mode == COMMAND) {
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abAppend(ab, PEACH_BG, COLOR_LEN);
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}
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abAppend(ab, BLACK_FG, COLOR_LEN);
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abAppend(ab, "\x1b[1m", 4);
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abAppend(ab, coord, coord_len);
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abAppend(ab, "\x1b[22m", 5);
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break;
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} else {
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abAppend(ab, " ", 1);
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file_len++;
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}
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}
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abAppend(ab, "\x1b[m", 3);
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abAppend(ab, "\r\n", 2);
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}
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void draw_message_bar(struct abuf *ab)
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{
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abAppend(ab, "\x1b[K", 3);
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int msglen = strlen(vip.statusmsg);
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if (msglen > vip.screencols) msglen = vip.screencols;
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if (msglen && time(NULL) - vip.statusmsg_time < 5)
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abAppend(ab, vip.statusmsg, msglen);
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}
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void set_status_bar_message(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(vip.statusmsg, sizeof(vip.statusmsg), fmt, ap);
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va_end(ap);
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vip.statusmsg_time = time(NULL);
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}
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298
src/editor.c
298
src/editor.c
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@ -1,298 +0,0 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include "editor.h"
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#include "vip.h"
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#include "term.h"
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#include "io.h"
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#include "bar.h"
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extern editor vip;
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void refresh_screen(void)
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{
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scroll();
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struct abuf ab = ABUF_INIT;
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abAppend(&ab, "\x1b[?25l", 6);
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abAppend(&ab, "\x1b[H", 3);
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draw_rows(&ab);
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draw_status_bar(&ab);
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draw_message_bar(&ab);
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char buf[32];
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snprintf(buf, sizeof(buf), "\x1b[%d;%dH", (vip.cy - vip.rowoff) + 1,
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(vip.rx - vip.coloff) + 1);
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abAppend(&ab, buf, strlen(buf));
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abAppend(&ab, "\x1b[?25h", 6);
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write(STDOUT_FILENO, ab.b, ab.len);
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abFree(&ab);
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}
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void move_cursor(int key)
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{
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row *row = (vip.cy >= vip.rows) ? NULL : &vip.row[vip.cy];
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switch (key) {
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case ARROW_LEFT:
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if (vip.cx != 0) {
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vip.cx--;
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}
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break;
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case ARROW_RIGHT:
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if (row && vip.cx < row->size) {
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vip.cx++;
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}
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break;
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case ARROW_UP:
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if (vip.cy != 0) {
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vip.cy--;
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}
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break;
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case ARROW_DOWN:
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if (vip.cy < vip.rows) {
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vip.cy++;
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}
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break;
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}
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row = (vip.cy >= vip.rows) ? NULL : &vip.row[vip.cy];
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int rowlen = row ? row->size : 0;
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if (vip.cx > rowlen) {
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vip.cx = rowlen;
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}
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}
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void scroll(void)
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{
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vip.rx = 0;
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if (vip.cy < vip.rows) {
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vip.rx = row_cx_to_rx(&vip.row[vip.cy], vip.cx);
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}
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if (vip.cy < vip.rowoff) {
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vip.rowoff = vip.cy;
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}
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if (vip.cy >= vip.rowoff + vip.screenrows) {
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vip.rowoff = vip.cy - vip.screenrows + 1;
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}
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if (vip.rx < vip.coloff) {
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vip.coloff = vip.rx;
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}
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if (vip.rx >= vip.coloff + vip.screencols) {
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vip.coloff = vip.rx - vip.screencols + 1;
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}
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}
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void insert_char(int c)
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{
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if (vip.cy == vip.rows) {
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insert_row(vip.rows, "", 0);
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}
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row_insert_char(&vip.row[vip.cy], vip.cx, c);
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vip.cx++;
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}
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void insert_new_line(void)
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{
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if (vip.cx == 0) {
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insert_row(vip.cy, "", 0);
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} else {
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row *row = &vip.row[vip.cy];
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insert_row(vip.cy + 1, &row->chars[vip.cx], row->size - vip.cx);
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row = &vip.row[vip.cy];
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row->size = vip.cx;
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row->chars[row->size] = '\0';
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update_row(row);
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}
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vip.cy++;
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vip.cx = 0;
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}
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/*
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* 'o' in vim
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*/
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void shift_new_line(void)
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{
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insert_row(vip.cy + 1, "", 0);
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vip.cy++;
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vip.cx = 0;
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}
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void del_char(void)
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{
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if (vip.cy == vip.rows) return;
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if (vip.cx == 0 && vip.cy == 0) return;
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row *row = &vip.row[vip.cy];
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if (vip.cx > 0) {
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row_del_char(row, vip.cx - 1);
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vip.cx--;
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} else {
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vip.cx = vip.row[vip.cy - 1].size;
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row_append_str(&vip.row[vip.cy - 1], row->chars, row->size);
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del_row(vip.cy);
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vip.cy--;
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}
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}
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void init_editor(void)
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{
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vip.cx = 0;
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vip.cy = 0;
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vip.rx = 0;
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vip.rowoff = 0;
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vip.coloff = 0;
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vip.rows = 0;
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vip.row = NULL;
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vip.dirty = 0;
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vip.mode = NORMAL;
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vip.filename = NULL;
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vip.statusmsg[0] = '\0';
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vip.statusmsg_time = 0;
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vip.syntax = NULL;
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if (get_window_size(&vip.screenrows, &vip.screencols) == -1) {
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die("get_window_size");
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}
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vip.screenrows -= 2;
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}
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void open_editor(char *filename)
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{
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free(vip.filename);
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vip.filename = strdup(filename);
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||||
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select_syntax_highlight();
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FILE *fp = fopen(filename, "r");
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if (!fp) {
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||||
die("fopen");
|
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}
|
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char *line = NULL;
|
||||
size_t linecap = 0;
|
||||
ssize_t len;
|
||||
while ((len = getline(&line, &linecap, fp)) != -1) {
|
||||
/* remove new line and carriage return at end of line */
|
||||
while (len > 0 && (line[len - 1] == '\n' || line[len - 1] == '\r')) {
|
||||
len--;
|
||||
}
|
||||
insert_row(vip.rows, line, len);
|
||||
}
|
||||
free(line);
|
||||
fclose(fp);
|
||||
/* reset dirtiness as nothing is modified yet */
|
||||
vip.dirty = 0;
|
||||
}
|
||||
|
||||
char *prompt_editor(char *prompt, void (*callback)(char *, int))
|
||||
{
|
||||
size_t bufsize = 128;
|
||||
char *buf = malloc(bufsize);
|
||||
size_t buflen = 0;
|
||||
buf[0] = '\0';
|
||||
while (1) {
|
||||
set_status_bar_message(prompt, buf);
|
||||
refresh_screen();
|
||||
int c = read_key();
|
||||
if (c == DEL_KEY || c == CTRL_KEY('h') || c == BACKSPACE) {
|
||||
if (buflen != 0) {
|
||||
buf[--buflen] = '\0';
|
||||
}
|
||||
} else if (c == '\x1b') {
|
||||
set_status_bar_message("");
|
||||
if (callback) callback(buf, c);
|
||||
free(buf);
|
||||
return NULL;
|
||||
} else if (c == '\r') {
|
||||
if (buflen != 0) {
|
||||
set_status_bar_message("");
|
||||
if (callback) callback(buf, c);
|
||||
return buf;
|
||||
}
|
||||
} else if (!iscntrl(c) && c < 128) {
|
||||
if (buflen == bufsize - 1) {
|
||||
bufsize *= 2;
|
||||
buf = realloc(buf, bufsize);
|
||||
}
|
||||
buf[buflen++] = c;
|
||||
buf[buflen] = '\0';
|
||||
}
|
||||
|
||||
if (callback) callback(buf, c);
|
||||
}
|
||||
}
|
||||
|
||||
void find_callback(char *query, int key)
|
||||
{
|
||||
static int last_match = -1;
|
||||
static int direction = 1;
|
||||
|
||||
static int saved_hl_line;
|
||||
static char *saved_hl = NULL;
|
||||
if (saved_hl) {
|
||||
memcpy(vip.row[saved_hl_line].hl, saved_hl, vip.row[saved_hl_line].render_size);
|
||||
free(saved_hl);
|
||||
saved_hl = NULL;
|
||||
}
|
||||
|
||||
if (key == '\r' || key == '\x1b') {
|
||||
last_match = -1;
|
||||
direction = 1;
|
||||
return;
|
||||
} else if (key == CTRL_KEY('n')) {
|
||||
direction = 1;
|
||||
} else if (key == CTRL_KEY('p')) {
|
||||
direction = -1;
|
||||
} else {
|
||||
last_match = -1;
|
||||
direction = 1;
|
||||
}
|
||||
|
||||
if (last_match == -1) direction = 1;
|
||||
int current = last_match;
|
||||
for (int i = 0; i < vip.rows; i++) {
|
||||
current += direction;
|
||||
|
||||
if (current == -1) current = vip.rows - 1;
|
||||
else if (current == vip.rows) current = 0;
|
||||
|
||||
row *row = &vip.row[current];
|
||||
char *match = strstr(row->render, query);
|
||||
if (match) {
|
||||
last_match = current;
|
||||
vip.cy = current;
|
||||
vip.cx = row_rx_to_cx(row, match - row->render);
|
||||
vip.rowoff = vip.rows;
|
||||
|
||||
saved_hl_line = current;
|
||||
saved_hl = malloc(row->render_size);
|
||||
memcpy(saved_hl, row->hl, row->render_size);
|
||||
|
||||
memset(&row->hl[match - row->render], MATCH, strlen(query));
|
||||
memset(&row->hl[match - row->render + strlen(query)], RESET, row->render_size - (match - row->render + strlen(query)));
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void find_editor(void)
|
||||
{
|
||||
int tmp_cx = vip.cx;
|
||||
int tmp_cy = vip.cy;
|
||||
int tmp_coloff = vip.coloff;
|
||||
int tmp_rowoff = vip.rowoff;
|
||||
char *query = prompt_editor("/%s", find_callback);
|
||||
if (query) {
|
||||
free(query);
|
||||
} else {
|
||||
vip.cx = tmp_cx;
|
||||
vip.cy = tmp_cy;
|
||||
vip.coloff = tmp_coloff;
|
||||
vip.rowoff = tmp_rowoff;
|
||||
}
|
||||
}
|
317
src/io.c
317
src/io.c
|
@ -1,317 +0,0 @@
|
|||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <unistd.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include "editor.h"
|
||||
#include "term.h"
|
||||
#include "vip.h"
|
||||
#include "bar.h"
|
||||
|
||||
int read_key(void)
|
||||
{
|
||||
int nread;
|
||||
char c;
|
||||
while ((nread = read(STDIN_FILENO, &c, 1)) != 1) {
|
||||
if (nread == -1 && errno != EAGAIN) {
|
||||
die("read");
|
||||
}
|
||||
}
|
||||
|
||||
if (c == '\x1b') {
|
||||
char seq[3];
|
||||
|
||||
if (read(STDIN_FILENO, &seq[0], 1) != 1)
|
||||
return '\x1b';
|
||||
if (read(STDIN_FILENO, &seq[1], 1) != 1)
|
||||
return '\x1b';
|
||||
|
||||
if (seq[0] == '[') {
|
||||
if (seq[1] >= '0' && seq[1] <= '9') {
|
||||
if (read(STDIN_FILENO, &seq[2], 1) != 1)
|
||||
return '\x1b';
|
||||
if (seq[2] == '~') {
|
||||
switch (seq[1]) {
|
||||
case '1': return HOME_KEY;
|
||||
case '3': return DEL_KEY;
|
||||
case '4': return END_KEY;
|
||||
case '5': return PAGE_UP;
|
||||
case '6': return PAGE_DOWN;
|
||||
case '7': return HOME_KEY;
|
||||
case '8': return END_KEY;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
switch (seq[1]) {
|
||||
case 'A': return ARROW_UP;
|
||||
case 'B': return ARROW_DOWN;
|
||||
case 'C': return ARROW_RIGHT;
|
||||
case 'D': return ARROW_LEFT;
|
||||
case 'F': return END_KEY;
|
||||
case 'H': return HOME_KEY;
|
||||
}
|
||||
}
|
||||
} else if (seq[0] == 'O') {
|
||||
switch (seq[1]) {
|
||||
case 'F': return END_KEY;
|
||||
case 'H': return HOME_KEY;
|
||||
}
|
||||
}
|
||||
return '\x1b';
|
||||
} else {
|
||||
return c;
|
||||
}
|
||||
}
|
||||
|
||||
void save_file(void)
|
||||
{
|
||||
if (vip.filename == NULL) {
|
||||
vip.filename = prompt_editor("Save as: %s", NULL);
|
||||
if (vip.filename == NULL) {
|
||||
set_status_bar_message("Save aborted");
|
||||
return;
|
||||
}
|
||||
select_syntax_highlight();
|
||||
}
|
||||
int len;
|
||||
char *buf = rows_to_str(&len);
|
||||
int fd = open(vip.filename, O_RDWR | O_CREAT, 0644);
|
||||
if (fd != -1) {
|
||||
if (ftruncate(fd, len) != -1) {
|
||||
if (write(fd, buf, len) == len) {
|
||||
close(fd);
|
||||
free(buf);
|
||||
vip.dirty = 0;
|
||||
set_status_bar_message("\"%s\" %dL, %dB written", vip.filename, vip.rows, len);
|
||||
return;
|
||||
}
|
||||
}
|
||||
close(fd);
|
||||
}
|
||||
free(buf);
|
||||
set_status_bar_message("Error saving: %s", strerror(errno));
|
||||
}
|
||||
|
||||
void process_key(void)
|
||||
{
|
||||
int c = read_key();
|
||||
switch (c) {
|
||||
case '\r':
|
||||
insert_new_line();
|
||||
break;
|
||||
|
||||
case HOME_KEY:
|
||||
vip.cx = 0;
|
||||
break;
|
||||
|
||||
case END_KEY:
|
||||
if (vip.cy < vip.rows) {
|
||||
vip.cx = vip.row[vip.cy].size;
|
||||
}
|
||||
break;
|
||||
|
||||
case BACKSPACE:
|
||||
case CTRL_KEY('h'):
|
||||
case DEL_KEY: /* PASSTHROUGH */
|
||||
if (vip.mode == INSERT) {
|
||||
if (c == DEL_KEY)
|
||||
move_cursor(ARROW_RIGHT);
|
||||
del_char();
|
||||
}
|
||||
break;
|
||||
|
||||
case PAGE_UP:
|
||||
case PAGE_DOWN:
|
||||
{
|
||||
if (c == PAGE_UP) {
|
||||
vip.cy = vip.rowoff;
|
||||
} else if (c == PAGE_DOWN) {
|
||||
vip.cy = vip.rowoff + vip.screenrows - 1;
|
||||
if (vip.cy > vip.rows) vip.cy = vip.rows;
|
||||
}
|
||||
int times = vip.screenrows;
|
||||
while (times--)
|
||||
move_cursor(c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
|
||||
}
|
||||
break;
|
||||
|
||||
case ARROW_UP:
|
||||
case ARROW_DOWN:
|
||||
case ARROW_LEFT:
|
||||
case ARROW_RIGHT:
|
||||
if (vip.mode == INSERT) {
|
||||
move_cursor(c);
|
||||
}
|
||||
break;
|
||||
|
||||
case CTRL_KEY('l'):
|
||||
case '\x1b':
|
||||
if (vip.mode == INSERT) {
|
||||
vip.mode = NORMAL;
|
||||
move_cursor(ARROW_LEFT);
|
||||
}
|
||||
break;
|
||||
|
||||
case 'i': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
vip.mode = INSERT;
|
||||
break;
|
||||
}
|
||||
|
||||
case ':': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
vip.mode = COMMAND;
|
||||
char *cmd = prompt_editor(":%s", NULL);
|
||||
if (cmd == NULL) {
|
||||
vip.mode = NORMAL;
|
||||
return;
|
||||
}
|
||||
switch (cmd[0]) {
|
||||
case 'q':
|
||||
if (cmd[1] == '!') {
|
||||
exit(0);
|
||||
break;
|
||||
} else {
|
||||
if (vip.dirty) {
|
||||
set_status_bar_message("No write since last change for buffer \"%s\"", vip.filename);
|
||||
vip.mode = NORMAL;
|
||||
return;
|
||||
}
|
||||
|
||||
exit(0);
|
||||
break;
|
||||
|
||||
}
|
||||
case 'w':
|
||||
save_file();
|
||||
vip.mode = NORMAL;
|
||||
}
|
||||
}
|
||||
case '/': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
find_editor();
|
||||
break;
|
||||
}
|
||||
|
||||
case 'k': /* PASSTHROUGH */
|
||||
if (vip.mode != INSERT) {
|
||||
move_cursor(ARROW_UP);
|
||||
break;
|
||||
}
|
||||
|
||||
case 'j': /* PASSTHROUGH */
|
||||
if (vip.mode != INSERT) {
|
||||
move_cursor(ARROW_DOWN);
|
||||
break;
|
||||
}
|
||||
|
||||
case 'l': /* PASSTHROUGH */
|
||||
if (vip.mode != INSERT) {
|
||||
move_cursor(ARROW_RIGHT);
|
||||
break;
|
||||
}
|
||||
|
||||
case 'h': /* PASSTHROUGH */
|
||||
if (vip.mode != INSERT) {
|
||||
move_cursor(ARROW_LEFT);
|
||||
break;
|
||||
}
|
||||
|
||||
case 'o': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
shift_new_line();
|
||||
vip.mode = INSERT;
|
||||
break;
|
||||
}
|
||||
|
||||
case '0': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
vip.cx = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
case '$': /* PASSTHROUGH */
|
||||
if (vip.mode == NORMAL) {
|
||||
vip.cx = vip.row[vip.cy].size;
|
||||
break;
|
||||
}
|
||||
|
||||
default:
|
||||
if (vip.mode == INSERT) {
|
||||
insert_char(c);
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void draw_rows(struct abuf *ab)
|
||||
{
|
||||
for (int y = 0; y < vip.screenrows; y++) {
|
||||
int filerow = y + vip.rowoff;
|
||||
if (filerow >= vip.rows) {
|
||||
if (vip.rows == 0 && y == vip.screenrows / 3) {
|
||||
char welcome[11];
|
||||
int welcomelen = snprintf(welcome, sizeof(welcome),
|
||||
"VIP v%s", VERSION);
|
||||
if (welcomelen > vip.screencols)
|
||||
welcomelen = vip.screencols;
|
||||
int padding = (vip.screencols - welcomelen) / 2;
|
||||
if (padding) {
|
||||
abAppend(ab, "~", 1);
|
||||
padding--;
|
||||
}
|
||||
while (padding--) abAppend(ab, " ", 1);
|
||||
abAppend(ab, welcome, welcomelen);
|
||||
} else {
|
||||
abAppend(ab, "~", 1);
|
||||
}
|
||||
} else {
|
||||
int len = vip.row[filerow].render_size - vip.coloff;
|
||||
if (len < 0) len = 0;
|
||||
if (len > vip.screencols) len = vip.screencols;
|
||||
char *c = &vip.row[filerow].render[vip.coloff];
|
||||
unsigned char *hl = &vip.row[filerow].hl[vip.coloff];
|
||||
|
||||
char *current_color = malloc(COLOR_LEN * 2);
|
||||
int current_color_len = 0;
|
||||
for (int j = 0; j < len; j++) {
|
||||
if (iscntrl(c[j])) {
|
||||
char sym = (c[j] <= 26) ? '@' + c[j] : '?';
|
||||
abAppend(ab, "\x1b[7m", 4);
|
||||
abAppend(ab, &sym, 1);
|
||||
abAppend(ab, "\x1b[m", 3);
|
||||
if (strncmp(current_color, WHITE_BG, COLOR_LEN)) {
|
||||
char *buf = malloc(COLOR_LEN * 2);
|
||||
memcpy(buf, current_color, current_color_len);
|
||||
abAppend(ab, buf, current_color_len);
|
||||
free(buf);
|
||||
}
|
||||
} else if (hl[j] == NORMAL) {
|
||||
if (strncmp(current_color, WHITE_BG, COLOR_LEN)) {
|
||||
memcpy(current_color, WHITE_BG, COLOR_LEN);
|
||||
current_color_len = COLOR_LEN;
|
||||
abAppend(ab, WHITE_BG, COLOR_LEN);
|
||||
}
|
||||
abAppend(ab, &c[j], 1);
|
||||
} else {
|
||||
size_t len;
|
||||
char *color = syntax_to_color(hl[j], &len);
|
||||
if (strncmp(current_color, color, len)) {
|
||||
memcpy(current_color, color, len);
|
||||
current_color_len = len;
|
||||
abAppend(ab, color, len);
|
||||
}
|
||||
free(color);
|
||||
abAppend(ab, &c[j], 1);
|
||||
}
|
||||
}
|
||||
free(current_color);
|
||||
abAppend(ab, WHITE_BG, COLOR_LEN);
|
||||
}
|
||||
|
||||
abAppend(ab, "\x1b[K", 3);
|
||||
abAppend(ab, "\r\n", 2);
|
||||
}
|
||||
}
|
156
src/row.c
156
src/row.c
|
@ -1,156 +0,0 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "vip.h"
|
||||
#include "row.h"
|
||||
#include "syntax.h"
|
||||
|
||||
extern editor vip;
|
||||
|
||||
int row_cx_to_rx(row *row, int cx)
|
||||
{
|
||||
int rx = 0;
|
||||
for (int j = 0; j < cx; j++) {
|
||||
if (row->chars[j] == '\t') {
|
||||
rx += (TAB_SIZE - 1) - (rx % TAB_SIZE);
|
||||
}
|
||||
rx++;
|
||||
}
|
||||
return rx;
|
||||
}
|
||||
|
||||
int row_rx_to_cx(row *row, int rx)
|
||||
{
|
||||
int cur_rx = 0;
|
||||
int cx;
|
||||
for (cx = 0; cx < row->size; cx++) {
|
||||
if (row->chars[cx] == '\t') {
|
||||
cur_rx += (TAB_SIZE - 1) - (cur_rx % TAB_SIZE);
|
||||
}
|
||||
cur_rx++;
|
||||
if (cur_rx > rx)
|
||||
return cx;
|
||||
}
|
||||
return cx;
|
||||
}
|
||||
|
||||
void update_row(row *row)
|
||||
{
|
||||
int tabs = 0;
|
||||
for (int j = 0; j < row->size; j++)
|
||||
if (row->chars[j] == '\t') tabs++;
|
||||
free(row->render);
|
||||
row->render = malloc(row->size + tabs * (TAB_SIZE - 1) + 1);
|
||||
int idx = 0;
|
||||
for (int j = 0; j < row->size; j++) {
|
||||
if (row->chars[j] == '\t') {
|
||||
row->render[idx++] = ' ';
|
||||
while (idx % TAB_SIZE != 0) {
|
||||
row->render[idx++] = ' ';
|
||||
}
|
||||
}
|
||||
else {
|
||||
row->render[idx++] = row->chars[j];
|
||||
}
|
||||
}
|
||||
row->render[idx] = '\0';
|
||||
row->render_size = idx;
|
||||
update_highlight(row);
|
||||
}
|
||||
|
||||
void insert_row(int at, char *s, size_t len)
|
||||
{
|
||||
if (at < 0 || at > vip.rows) return;
|
||||
|
||||
vip.row = realloc(vip.row, sizeof(row) * (vip.rows + 1));
|
||||
memmove(&vip.row[at + 1], &vip.row[at], sizeof(row) * (vip.rows - at));
|
||||
for (int j = at + 1; j <= vip.rows; j++) {
|
||||
vip.row[j].idx++;
|
||||
}
|
||||
|
||||
vip.row[at].idx = at;
|
||||
|
||||
vip.row[at].size = len;
|
||||
vip.row[at].chars = malloc(len + 1);
|
||||
memcpy(vip.row[at].chars, s, len);
|
||||
vip.row[at].chars[len] = '\0';
|
||||
|
||||
vip.row[at].render_size = 0;
|
||||
vip.row[at].render = NULL;
|
||||
vip.row[at].hl = NULL;
|
||||
vip.row[at].opened_comment = 0;
|
||||
update_row(&vip.row[at]);
|
||||
|
||||
vip.rows++;
|
||||
vip.dirty++;
|
||||
}
|
||||
|
||||
void free_row(row *row)
|
||||
{
|
||||
free(row->render);
|
||||
free(row->chars);
|
||||
free(row->hl);
|
||||
}
|
||||
|
||||
void del_row(int at)
|
||||
{
|
||||
if (at < 0 || at >= vip.rows) return;
|
||||
free_row(&vip.row[at]);
|
||||
memmove(&vip.row[at], &vip.row[at + 1], sizeof(row) * (vip.rows - at - 1));
|
||||
for (int j = at; j < vip.rows - 1; j++) {
|
||||
vip.row[j].idx--;
|
||||
}
|
||||
vip.rows--;
|
||||
vip.dirty++;
|
||||
}
|
||||
|
||||
void row_insert_char(row *row, int at, int c)
|
||||
{
|
||||
if (at < 0 || at > row->size) {
|
||||
at = row->size;
|
||||
}
|
||||
row->chars = realloc(row->chars, row->size + 2);
|
||||
memmove(&row->chars[at + 1], &row->chars[at], row->size - at + 1);
|
||||
row->size++;
|
||||
row->chars[at] = c;
|
||||
update_row(row);
|
||||
vip.dirty++;
|
||||
}
|
||||
|
||||
void row_append_str(row *row, char *s, size_t len)
|
||||
{
|
||||
row->chars = realloc(row->chars, row->size + len + 1);
|
||||
memcpy(&row->chars[row->size], s, len);
|
||||
row->size += len;
|
||||
row->chars[row->size] = '\0';
|
||||
update_row(row);
|
||||
vip.dirty++;
|
||||
}
|
||||
|
||||
void row_del_char(row *row, int at)
|
||||
{
|
||||
if (at < 0 || at >= row->size) return;
|
||||
memmove(&row->chars[at], &row->chars[at + 1], row->size - at);
|
||||
row->size--;
|
||||
update_row(row);
|
||||
vip.dirty++;
|
||||
}
|
||||
|
||||
char *rows_to_str(int *buflen)
|
||||
{
|
||||
int total_len = 0;
|
||||
for (int j = 0; j < vip.rows; j++) {
|
||||
total_len += vip.row[j].size + 1;
|
||||
}
|
||||
*buflen = total_len;
|
||||
char *buf = malloc(total_len);
|
||||
char *p = buf;
|
||||
for (int j = 0; j < vip.rows; j++) {
|
||||
memcpy(p, vip.row[j].chars, vip.row[j].size);
|
||||
p += vip.row[j].size;
|
||||
*p = '\n';
|
||||
p++;
|
||||
}
|
||||
return buf;
|
||||
}
|
211
src/syntax.c
211
src/syntax.c
|
@ -1,211 +0,0 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
|
||||
#include "vip.h"
|
||||
#include "row.h"
|
||||
#include "syntax.h"
|
||||
|
||||
char *c_keywords[] = { "switch", "if", "while", "for", "break", "continue", "return", "else", "struct", "union", "typedef", "static", "enum", "case", "sizeof", "int|", "long|", "double|", "float|", "char|", "unsigned|", "void|", NULL };
|
||||
char *c_ext[] = { ".c", ".h", ".cpp", NULL };
|
||||
|
||||
language langs[] = {
|
||||
{
|
||||
"c",
|
||||
HL_NUMBERS | HL_STRINGS,
|
||||
"//",
|
||||
"/*",
|
||||
"*/",
|
||||
c_keywords,
|
||||
c_ext,
|
||||
},
|
||||
};
|
||||
|
||||
#define LANGS_LEN (sizeof(langs) / sizeof(langs[0]))
|
||||
|
||||
int is_separator(int c)
|
||||
{
|
||||
return isspace(c) || c == '\0' || strchr(",.()+-/*=~%<>[];", c) != NULL;
|
||||
}
|
||||
|
||||
void update_highlight(row *row)
|
||||
{
|
||||
row->hl = realloc(row->hl, row->render_size);
|
||||
memset(row->hl, NORMAL, row->render_size);
|
||||
|
||||
if (vip.syntax == NULL) return;
|
||||
|
||||
char **keywords = vip.syntax->keywords;
|
||||
|
||||
char *scs = vip.syntax->singleline_comment_start;
|
||||
char *mcs = vip.syntax->multiline_comment_start;
|
||||
char *mce = vip.syntax->multiline_comment_end;
|
||||
|
||||
int scs_len = scs ? strlen(scs) : 0;
|
||||
int mcs_len = mcs ? strlen(mcs) : 0;
|
||||
int mce_len = mce ? strlen(mce) : 0;
|
||||
|
||||
int prev_sep = 1;
|
||||
int in_string = 0;
|
||||
int in_comment = (row->idx > 0 && vip.row[row->idx - 1].opened_comment);
|
||||
|
||||
int i = 0;
|
||||
while (i < row->render_size) {
|
||||
char c = row->render[i];
|
||||
unsigned char prev_hl = (i > 0) ? row->hl[i - 1] : NORMAL;
|
||||
|
||||
if (scs_len && !in_string && !in_comment) {
|
||||
if (!strncmp(&row->render[i], scs, scs_len)) {
|
||||
memset(&row->hl[i], COMMENT, row->render_size - i);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (mcs_len && mce_len && !in_string) {
|
||||
if (in_comment) {
|
||||
row->hl[i] = MLCOMMENT;
|
||||
if (!strncmp(&row->render[i], mce, mce_len)) {
|
||||
memset(&row->hl[i], MLCOMMENT, mce_len);
|
||||
i += mce_len;
|
||||
in_comment = 0;
|
||||
prev_sep = 1;
|
||||
continue;
|
||||
} else {
|
||||
i++;
|
||||
continue;
|
||||
}
|
||||
} else if (!strncmp(&row->render[i], mcs, mcs_len)) {
|
||||
memset(&row->hl[i], MLCOMMENT, mcs_len);
|
||||
i += mcs_len;
|
||||
in_comment = 1;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (vip.syntax->flags & HL_STRINGS) {
|
||||
if (in_string) {
|
||||
row->hl[i] = STRING;
|
||||
if (c == '\\' && i + 1 < row->render_size) {
|
||||
row->hl[i + 1] = STRING;
|
||||
i += 2;
|
||||
continue;
|
||||
}
|
||||
if (c == in_string) in_string = 0;
|
||||
i++;
|
||||
prev_sep = 1;
|
||||
continue;
|
||||
} else {
|
||||
if (c == '"') {
|
||||
in_string = c;
|
||||
row->hl[i] = STRING;
|
||||
i++;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (vip.syntax->flags & HL_NUMBERS) {
|
||||
if ((isdigit(c) && (prev_sep || prev_hl == NUMBER)) ||
|
||||
(c == '.' && prev_hl == NUMBER)) {
|
||||
row->hl[i] = NUMBER;
|
||||
i++;
|
||||
prev_sep = 0;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (prev_sep) {
|
||||
int j;
|
||||
for (j = 0; keywords[j]; j++) {
|
||||
int klen = strlen(keywords[j]);
|
||||
int type_keyword = keywords[j][klen - 1] == '|';
|
||||
if (type_keyword) klen--;
|
||||
if (!strncmp(&row->render[i], keywords[j], klen) &&
|
||||
is_separator(row->render[i + klen])) {
|
||||
memset(&row->hl[i], type_keyword ? KEYWORD2 : KEYWORD1, klen);
|
||||
i += klen;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (keywords[j] != NULL) {
|
||||
prev_sep = 0;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
prev_sep = is_separator(c);
|
||||
i++;
|
||||
}
|
||||
int changed = (row->opened_comment != in_comment);
|
||||
row->opened_comment = in_comment;
|
||||
if (changed && row->idx + 1 < vip.rows)
|
||||
update_highlight(&vip.row[row->idx + 1]);
|
||||
}
|
||||
|
||||
char *syntax_to_color(int hl, size_t *len)
|
||||
{
|
||||
switch (hl) {
|
||||
case NUMBER:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(PEACH_BG);
|
||||
|
||||
case STRING:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(GREEN_BG);
|
||||
|
||||
case COMMENT:
|
||||
case MLCOMMENT:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(OVERLAY_0_BG);
|
||||
|
||||
case KEYWORD1:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(MAUVE_BG);
|
||||
|
||||
case KEYWORD2:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(YELLOW_BG);
|
||||
|
||||
case MATCH:;
|
||||
char *str = malloc(COLOR_LEN * 2 + 1);
|
||||
snprintf(str, COLOR_LEN * 2 + 1, "%s%s", BLACK_BG, SKY_FG);
|
||||
*len = COLOR_LEN * 2;
|
||||
return str;
|
||||
|
||||
case RESET:;
|
||||
char *res = malloc(COLOR_LEN * 2 + 1);
|
||||
snprintf(res, COLOR_LEN * 2 + 1, "%s%s", WHITE_BG, BLACK_FG);
|
||||
*len = COLOR_LEN * 2;
|
||||
return res;
|
||||
|
||||
default:
|
||||
*len = COLOR_LEN;
|
||||
return strdup(WHITE_BG);
|
||||
}
|
||||
}
|
||||
|
||||
void select_syntax_highlight(void)
|
||||
{
|
||||
vip.syntax = NULL;
|
||||
if (vip.filename == NULL) return;
|
||||
char *ext = strrchr(vip.filename, '.');
|
||||
for (unsigned int j = 0; j < LANGS_LEN; j++) {
|
||||
language *s = &langs[j];
|
||||
unsigned int i = 0;
|
||||
while (s->extensions[i]) {
|
||||
int is_ext = (s->extensions[i][0] == '.');
|
||||
if ((is_ext && ext && !strcmp(ext, s->extensions[i])) ||
|
||||
(!is_ext && strstr(vip.filename, s->extensions[i]))) {
|
||||
vip.syntax = s;
|
||||
|
||||
for (int row = 0; row < vip.rows; row++) {
|
||||
update_highlight(&vip.row[row]);
|
||||
}
|
||||
return;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
90
src/term.c
90
src/term.c
|
@ -1,90 +0,0 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <termios.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/ioctl.h>
|
||||
|
||||
#include "vip.h"
|
||||
|
||||
extern editor vip;
|
||||
|
||||
void die(const char *s)
|
||||
{
|
||||
write(STDOUT_FILENO, "\x1b[2J\x1b[H", 7);
|
||||
perror(s);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
void reset_term(void)
|
||||
{
|
||||
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &vip.termios) == -1) {
|
||||
die("tcsetattr");
|
||||
}
|
||||
write(STDOUT_FILENO, "\x1b[2J\x1b[?1049l", 12);
|
||||
}
|
||||
|
||||
/*
|
||||
* Setup terminal
|
||||
*/
|
||||
void setup_term(void)
|
||||
{
|
||||
write(STDOUT_FILENO, "\x1b[?1049h\x1b[2J", 12);
|
||||
if (tcgetattr(STDIN_FILENO, &vip.termios) == -1) {
|
||||
die("tcgetattr");
|
||||
}
|
||||
atexit(reset_term);
|
||||
|
||||
struct termios raw = vip.termios;
|
||||
/* disbable echo, line output and signals */
|
||||
raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
|
||||
raw.c_oflag &= ~(OPOST);
|
||||
raw.c_cflag |= (CS8);
|
||||
raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
|
||||
raw.c_cc[VMIN] = 0;
|
||||
raw.c_cc[VTIME] = 1;
|
||||
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw) == -1) {
|
||||
die("tcsetattr");
|
||||
}
|
||||
}
|
||||
|
||||
int get_cursor_position(int *rows, int *cols)
|
||||
{
|
||||
char buf[32];
|
||||
unsigned int i = 0;
|
||||
if (write(STDOUT_FILENO, "\x1b[6n", 4) != 4) {
|
||||
return -1;
|
||||
}
|
||||
while (i < sizeof(buf) - 1) {
|
||||
if (read(STDIN_FILENO, &buf[i], 1) != 1) {
|
||||
break;
|
||||
}
|
||||
if (buf[i] == 'R') {
|
||||
break;
|
||||
}
|
||||
i++;
|
||||
}
|
||||
buf[i] = '\0';
|
||||
if (buf[0] != '\x1b' || buf[1] != '[') {
|
||||
return -1;
|
||||
}
|
||||
if (sscanf(&buf[2], "%d;%d", rows, cols) != 2) {
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int get_window_size(int *rows, int *cols)
|
||||
{
|
||||
struct winsize ws;
|
||||
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) {
|
||||
/* Can't get window size */
|
||||
if (write(STDOUT_FILENO, "\x1b[999C\x1b[999B", 12) != 12) {
|
||||
return -1;
|
||||
}
|
||||
return get_cursor_position(rows, cols);
|
||||
} else {
|
||||
*cols = ws.ws_col;
|
||||
*rows = ws.ws_row;
|
||||
return 0;
|
||||
}
|
||||
}
|
46
src/vip.c
46
src/vip.c
|
@ -1,46 +0,0 @@
|
|||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <ctype.h>
|
||||
#include <termios.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/types.h>
|
||||
|
||||
#include "vip.h"
|
||||
#include "term.h"
|
||||
#include "editor.h"
|
||||
#include "bar.h"
|
||||
#include "io.h"
|
||||
|
||||
editor vip;
|
||||
|
||||
void abAppend(struct abuf *ab, const char *s, int len)
|
||||
{
|
||||
char *new = realloc(ab->b, ab->len + len);
|
||||
if (new == NULL) return;
|
||||
memcpy(&new[ab->len], s, len);
|
||||
ab->b = new;
|
||||
ab->len += len;
|
||||
}
|
||||
|
||||
void abFree(struct abuf *ab)
|
||||
{
|
||||
free(ab->b);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
setup_term();
|
||||
init_editor();
|
||||
if (argc >= 2) {
|
||||
open_editor(argv[1]);
|
||||
}
|
||||
|
||||
set_status_bar_message("By night0721 and gnucolas");
|
||||
|
||||
while (1) {
|
||||
refresh_screen();
|
||||
process_key();
|
||||
}
|
||||
return 0;
|
||||
}
|
Loading…
Reference in a new issue