Start refactoring into multiple lines and make it my own #8
This commit is contained in:
Aaron Fischer
parent
184827cfd1
commit
6b2c3a00a5
6 changed files with 252 additions and 211 deletions
16
Makefile
16
Makefile
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@ -1,2 +1,14 @@
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kilo: kilo.c
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$(CC) kilo.c -o kilo -Wall -Wextra -pedantic -std=c99
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kilo: fn.c terminal.c
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$(CC) fn.c terminal.c -o fn \
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-Wall \
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-Wextra \
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-Wbad-function-cast \
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-Wcast-align \
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-Wcast-qual \
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-Wmissing-declarations \
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-Wnested-externs \
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-Wpointer-arith \
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-Wwrite-strings \
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-Wno-discarded-qualifiers \
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-pedantic \
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-std=c99
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BIN
fn
Executable file
BIN
fn
Executable file
Binary file not shown.
221
kilo.c → fn.c
221
kilo.c → fn.c
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@ -17,84 +17,9 @@
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#include <time.h>
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#include <unistd.h>
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/*** defines ***/
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#include "fn.h"
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#include "terminal.h"
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#define KILO_VERSION "0.0.1"
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#define KILO_TAB_STOP 8
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#define KILO_QUIT_TIMES 3
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#define CTRL_KEY(k) ((k) & 0x1f)
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enum editorKey {
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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 editorHighlight {
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HL_NORMAL = 0,
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HL_COMMENT,
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HL_MLCOMMENT,
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HL_KEYWORD1,
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HL_KEYWORD2,
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HL_STRING,
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HL_NUMBER,
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HL_MATCH
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};
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#define HL_HIGHLIGHT_NUMBERS (1<<0)
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#define HL_HIGHLIGHT_STRINGS (1<<1)
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/*** data ***/
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struct editorSyntax {
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char *filetype;
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char **filematch;
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char **keywords;
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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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int flags;
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};
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typedef struct erow {
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int idx;
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int size;
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int rsize;
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char *chars;
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char *render;
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unsigned char *hl;
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int hl_open_comment;
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} erow;
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struct editorConfig {
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int cx, cy;
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int rx; // The x position in the rendered line (for tabs)
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int rowoff;
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int coloff;
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int screenrows;
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int screencols;
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int numrows;
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erow *row;
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int dirty;
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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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struct editorSyntax *syntax;
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struct termios orig_termios;
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};
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struct editorConfig E;
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/*** filetypes ***/
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char *C_HL_extensions[] = { ".c", ".h", ".cpp", NULL };
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char *C_HL_keywords[] = {
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@ -117,128 +42,6 @@ struct editorSyntax HLDB[] = {
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#define HLDB_ENTRIES (sizeof(HLDB) / sizeof(HLDB[0]))
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/*** prototypes ***/
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void editorSetStatusMessage(const char *fmt, ...);
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void editorRefreshScreen();
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char *editorPrompt(char *prompt, void (*callback)(char *, int));
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/*** terminal ***/
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void die(const char *s) {
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write(STDOUT_FILENO, "\x1b[2J", 4);
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write(STDOUT_FILENO, "\x1b[H", 3);
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perror(s);
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exit(1);
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}
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void disableRawMode() {
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &E.orig_termios) == -1)
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die("tcsetattr");
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}
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void enableRawMode() {
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if (tcgetattr(STDIN_FILENO, &E.orig_termios) == -1)
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die("tcgetattr");
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atexit(disableRawMode);
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struct termios raw = E.orig_termios;
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raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
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raw.c_oflag &= ~(OPOST);
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raw.c_cflag |= (CS8);
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raw.c_lflag &= ~(ECHO | ICANON | ISIG);
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raw.c_cc[VMIN] = 0;
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raw.c_cc[VTIME] = 1;
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw) == -1)
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die("tcsetattr");
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}
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int editorReadKey() {
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int nread;
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char c;
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while ((nread = read(STDIN_FILENO, &c, 1)) != 1) {
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if (nread == -1 && errno != EAGAIN) die("read");
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}
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// Process escape sequences
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if (c == '\x1b') {
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char seq[3];
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if (read(STDIN_FILENO, &seq[0], 1) != 1) return '\x1b';
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if (read(STDIN_FILENO, &seq[1], 1) != 1) return '\x1b';
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if (seq[0] == '[') {
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if (seq[1] >= '0' && seq[1] <= '9') {
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if (read(STDIN_FILENO, &seq[2], 1) != 1) return '\x1b';
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if (seq[2] == '~') {
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switch (seq[1]) {
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case '1': return HOME_KEY;
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case '3': return DEL_KEY;
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case '4': return END_KEY;
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case '5': return PAGE_UP;
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case '6': return PAGE_DOWN;
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case '7': return HOME_KEY;
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case '8': return END_KEY;
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}
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}
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} else {
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switch (seq[1]) {
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case 'A': return ARROW_UP;
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case 'B': return ARROW_DOWN;
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case 'C': return ARROW_RIGHT;
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case 'D': return ARROW_LEFT;
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}
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}
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} else if (seq[0] == '0') {
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switch (seq[1]) {
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case 'H': return HOME_KEY;
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case 'F': return END_KEY;
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}
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}
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return '\x1b';
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} else {
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return c;
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}
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}
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int getCursorPosition(int *rows, int *cols) {
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char buf[32];
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unsigned int i = 0;
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if (write(STDOUT_FILENO, "\x1b[6n", 4) != 4) // CPR (custor position report)
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return -1;
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while (i < sizeof(buf) - 1) {
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if (read(STDIN_FILENO, &buf[i], 1) != 1) break;
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if (buf[i] == 'R') break;
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i++;
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}
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buf[i] = '\0';
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if (buf[0] != '\x1b' || buf[1] != '[') return -1;
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if (sscanf(&buf[2], "%d;%d", rows, cols) != 2) return -1;
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return 0;
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}
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int getWindowSize(int *rows, int *cols) {
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struct winsize ws;
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if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) {
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// Move cursor to the lower right as a fallback if TIOCGWINSZ does
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// not work. We count the columns and rows then by hand.
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if (write(STDOUT_FILENO, "\x1b[999C\x1b[999B", 12) != 12)
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return -1;
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return getCursorPosition(rows, cols);
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return -1;
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} else {
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*cols = ws.ws_col;
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*rows = ws.ws_row;
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return 0;
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}
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}
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/*** syntax highlighting ***/
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@ -413,7 +216,7 @@ int editorRowCxToRx(erow *row, int cx) {
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int j;
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for (j=0; j<cx; j++) {
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if (row->chars[j] == '\t') {
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rx += (KILO_TAB_STOP - 1) - (rx % KILO_TAB_STOP);
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rx += (FN_TAB_STOP - 1) - (rx % FN_TAB_STOP);
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}
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rx++;
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}
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@ -425,7 +228,7 @@ int editorRowRxToCx(erow *row, int rx) {
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int cx;
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for (cx=0; cx < row->size; cx++) {
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if (row->chars[cx] == '\t')
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cur_rx += (KILO_TAB_STOP - 1) - (cur_rx % KILO_TAB_STOP);
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cur_rx += (FN_TAB_STOP - 1) - (cur_rx % FN_TAB_STOP);
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cur_rx++;
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if (cur_rx > rx) return cx;
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@ -441,13 +244,13 @@ void editorUpdateRow(erow *row) {
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}
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free(row->render);
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row->render = malloc(row->size + tabs*(KILO_TAB_STOP - 1) + 1);
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row->render = malloc(row->size + tabs*(FN_TAB_STOP - 1) + 1);
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int idx = 0;
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for (j=0; j<row->size; j++) {
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if (row->chars[j] == '\t') {
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row->render[idx++] = ' ';
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while (idx % KILO_TAB_STOP != 0) row->render[idx++] = ' ';
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while (idx % FN_TAB_STOP != 0) row->render[idx++] = ' ';
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} else {
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row->render[idx++] = row->chars[j];
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}
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@ -764,7 +567,7 @@ void editorDrawRows(struct abuf *ab) {
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if (E.numrows == 0 && y == E.screenrows / 3) {
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char welcome[80];
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int welcomelen = snprintf(welcome, sizeof(welcome),
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"Kilo editor -- version %s", KILO_VERSION);
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"FuNote v%s", FN_VERSION);
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if (welcomelen > E.screencols) welcomelen = E.screencols;
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int padding = (E.screencols - welcomelen) / 2;
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if (padding) {
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@ -823,9 +626,9 @@ void editorDrawRows(struct abuf *ab) {
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void editorDrawStatusBar(struct abuf *ab) {
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abAppend(ab, "\x1b[7m", 4);
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char status[80], rstatus[80];
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int len = snprintf(status, sizeof(status), "%.20s - %d lines %s",
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E.filename ? E.filename : "[No Name]", E.numrows,
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E.dirty ? "(modified)" : "");
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int len = snprintf(status, sizeof(status), "%.20s%s",
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E.filename ? E.filename : "[No Name]",
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E.dirty ? "*" : "");
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int rlen = snprintf(rstatus, sizeof(rstatus), "%s | %d/%d",
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E.syntax ? E.syntax->filetype : "no ft", E.cy + 1, E.numrows);
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if (len > E.screencols) len = E.screencols;
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@ -963,7 +766,7 @@ void editorMoveCursor(int key) {
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void editorProcessKeypress() {
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static int quit_times = KILO_QUIT_TIMES;
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static int quit_times = FN_QUIT_TIMES;
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int c = editorReadKey(); // Blocking!
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@ -1039,7 +842,7 @@ void editorProcessKeypress() {
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break;
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}
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quit_times = KILO_QUIT_TIMES;
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quit_times = FN_QUIT_TIMES;
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}
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/*** init ***/
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88
fn.h
Normal file
88
fn.h
Normal file
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@ -0,0 +1,88 @@
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#ifndef _FN_H
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#define _FN_H
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#define FN_VERSION "0.2"
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#define FN_TAB_STOP 4
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#define FN_QUIT_TIMES 2
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#define CTRL_KEY(k) ((k) & 0x1f)
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enum editorKey {
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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 editorHighlight {
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HL_NORMAL = 0,
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HL_COMMENT,
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HL_MLCOMMENT,
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HL_KEYWORD1,
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HL_KEYWORD2,
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HL_STRING,
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HL_NUMBER,
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HL_MATCH
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};
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#define HL_HIGHLIGHT_NUMBERS (1<<0)
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#define HL_HIGHLIGHT_STRINGS (1<<1)
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/*** data ***/
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struct editorSyntax {
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char *filetype;
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char **filematch;
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char **keywords;
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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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int flags;
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};
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typedef struct erow {
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int idx;
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int size;
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int rsize;
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char *chars;
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char *render;
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unsigned char *hl;
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int hl_open_comment;
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} erow;
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struct editorConfig {
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int cx, cy;
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int rx; // The x position in the rendered line (for tabs)
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int rowoff;
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int coloff;
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int screenrows;
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int screencols;
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int numrows;
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erow *row;
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int dirty;
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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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struct editorSyntax *syntax;
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struct termios orig_termios;
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};
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struct editorConfig E;
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/*** filetypes ***/
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/*** prototypes ***/
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void editorSetStatusMessage(const char *fmt, ...);
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void editorRefreshScreen();
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char *editorPrompt(char *prompt, void (*callback)(char *, int));
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#endif
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125
terminal.c
Normal file
125
terminal.c
Normal file
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@ -0,0 +1,125 @@
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#include <stdio.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <time.h>
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#include "fn.h"
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#include "terminal.h"
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void die(const char *s) {
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write(STDOUT_FILENO, "\x1b[2J", 4);
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write(STDOUT_FILENO, "\x1b[H", 3);
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perror(s);
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exit(1);
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}
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void disableRawMode() {
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &E.orig_termios) == -1)
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die("tcsetattr");
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}
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void enableRawMode() {
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if (tcgetattr(STDIN_FILENO, &E.orig_termios) == -1)
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die("tcgetattr");
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atexit(disableRawMode);
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struct termios raw = E.orig_termios;
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raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
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raw.c_oflag &= ~(OPOST);
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raw.c_cflag |= (CS8);
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raw.c_lflag &= ~(ECHO | ICANON | ISIG);
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raw.c_cc[VMIN] = 0;
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raw.c_cc[VTIME] = 1;
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if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw) == -1)
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die("tcsetattr");
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}
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int editorReadKey() {
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int nread;
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char c;
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while ((nread = read(STDIN_FILENO, &c, 1)) != 1) {
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if (nread == -1 && errno != EAGAIN) die("read");
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}
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// Process escape sequences
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if (c == '\x1b') {
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char seq[3];
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if (read(STDIN_FILENO, &seq[0], 1) != 1) return '\x1b';
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if (read(STDIN_FILENO, &seq[1], 1) != 1) return '\x1b';
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if (seq[0] == '[') {
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if (seq[1] >= '0' && seq[1] <= '9') {
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if (read(STDIN_FILENO, &seq[2], 1) != 1) return '\x1b';
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if (seq[2] == '~') {
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switch (seq[1]) {
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case '1': return HOME_KEY;
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case '3': return DEL_KEY;
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case '4': return END_KEY;
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case '5': return PAGE_UP;
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case '6': return PAGE_DOWN;
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case '7': return HOME_KEY;
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case '8': return END_KEY;
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}
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}
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} else {
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switch (seq[1]) {
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case 'A': return ARROW_UP;
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case 'B': return ARROW_DOWN;
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case 'C': return ARROW_RIGHT;
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case 'D': return ARROW_LEFT;
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}
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}
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} else if (seq[0] == '0') {
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switch (seq[1]) {
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case 'H': return HOME_KEY;
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case 'F': return END_KEY;
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}
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}
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return '\x1b';
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} else {
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return c;
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}
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}
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||||
|
||||
int getCursorPosition(int *rows, int *cols) {
|
||||
char buf[32];
|
||||
unsigned int i = 0;
|
||||
|
||||
if (write(STDOUT_FILENO, "\x1b[6n", 4) != 4) // CPR (custor position report)
|
||||
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 getWindowSize(int *rows, int *cols) {
|
||||
struct winsize ws;
|
||||
|
||||
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) {
|
||||
// Move cursor to the lower right as a fallback if TIOCGWINSZ does
|
||||
// not work. We count the columns and rows then by hand.
|
||||
if (write(STDOUT_FILENO, "\x1b[999C\x1b[999B", 12) != 12)
|
||||
return -1;
|
||||
return getCursorPosition(rows, cols);
|
||||
return -1;
|
||||
} else {
|
||||
*cols = ws.ws_col;
|
||||
*rows = ws.ws_row;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
13
terminal.h
Normal file
13
terminal.h
Normal file
|
|
@ -0,0 +1,13 @@
|
|||
#ifndef _TERMINAL_H
|
||||
#define _TERMINAL_H
|
||||
|
||||
void die(const char *s);
|
||||
|
||||
void disableRawMode();
|
||||
void enableRawMode();
|
||||
|
||||
int editorReadKey();
|
||||
int getCursorPosition(int *rows, int *cols);
|
||||
int getWindowSize(int *rows, int *cols);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue