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-rw-r--r--ted.c102
1 files changed, 51 insertions, 51 deletions
diff --git a/ted.c b/ted.c
index 0e21031..86616b7 100644
--- a/ted.c
+++ b/ted.c
@@ -53,28 +53,28 @@ typedef struct erow {
char *chars;
} erow_t;
-typedef struct editor_config {
+typedef struct editor {
int cx, cy;
int screen_rows;
int screen_cols;
int num_rows;
erow_t row;
struct termios orig_termios;
-} editor_config_t;
+} editor_t;
-editor_config_t E;
+editor_t E;
int get_cursor_position(int *rows, int *cols);
int get_window_size(int *rows, int *cols);
-void editor_init(editor_config_t *ec);
-void editor_open(editor_config_t *ec, char *filename);
+void editor_init(editor_t *e);
+void editor_open(editor_t *e, char *filename);
int editor_read_key();
-void editor_move_cursor(editor_config_t *ec, int key);
-void editor_process_key(editor_config_t *ec);
-void editor_draw_rows(editor_config_t *ec, string_builder_t *sb);
+void editor_move_cursor(editor_t *e, int key);
+void editor_process_key(editor_t *e);
+void editor_draw_rows(editor_t *e, string_builder_t *sb);
void editor_clear_screen();
-void editor_refresh_screen(editor_config_t *ec);
+void editor_refresh_screen(editor_t *e);
void disable_raw_mode();
void enable_raw_mode();
void die(const char *s);
@@ -98,34 +98,34 @@ main(int argc, char *argv[])
}
void
-editor_init(editor_config_t *ec)
+editor_init(editor_t *e)
{
- ec->cx = 0;
- ec->cy = 0;
- ec->num_rows = 0;
- if (get_window_size(&ec->screen_rows, &ec->screen_cols) == -1) {
+ e->cx = 0;
+ e->cy = 0;
+ e->num_rows = 0;
+ if (get_window_size(&e->screen_rows, &e->screen_cols) == -1) {
die("get_window_size");
}
}
void
-editor_open(editor_config_t *ec, char *filename)
+editor_open(editor_t *e, char *filename)
{
FILE *fp = fopen(filename, "r");
if (!fp) die("fopen");
char* line = NULL;
- size_t linecap = 0;
- ssize_t linelen = getline(&line, &linecap, fp);
+ size_t lineap = 0;
+ ssize_t linelen = getline(&line, &lineap, fp);
if (linelen != -1) {
while (linelen > 0 && (line[linelen - 1] == '\n' || line[linelen - 1] == '\r')) {
linelen--;
}
- ec->row.size = linelen;
- ec->row.chars = malloc(linelen + 1);
- memcpy(ec->row.chars, line, linelen);
- ec->row.chars[linelen] = '\0';
- ec->num_rows = 1;
+ e->row.size = linelen;
+ e->row.chars = malloc(linelen + 1);
+ memcpy(e->row.chars, line, linelen);
+ e->row.chars[linelen] = '\0';
+ e->num_rows = 1;
}
free(line);
fclose(fp);
@@ -232,34 +232,34 @@ get_window_size(int *rows, int *cols)
}
void
-editor_move_cursor(editor_config_t *ec, int key)
+editor_move_cursor(editor_t *e, int key)
{
switch (key) {
case ARROW_LEFT:
- if (ec->cx != 0) {
- ec->cx--;
+ if (e->cx != 0) {
+ e->cx--;
}
break;
case ARROW_RIGHT:
- if (ec->cx != ec->screen_cols - 1) {
- ec->cx++;
+ if (e->cx != e->screen_cols - 1) {
+ e->cx++;
}
break;
case ARROW_UP:
- if (ec->cy != 0) {
- ec->cy--;
+ if (e->cy != 0) {
+ e->cy--;
}
break;
case ARROW_DOWN:
- if (ec->cy != ec->screen_rows - 1) {
- ec->cy++;
+ if (e->cy != e->screen_rows - 1) {
+ e->cy++;
}
break;
}
}
void
-editor_process_key(editor_config_t *ec)
+editor_process_key(editor_t *e)
{
int c = editor_read_key();
@@ -269,17 +269,17 @@ editor_process_key(editor_config_t *ec)
exit(EXIT_SUCCESS);
break;
case HOME_KEY:
- ec->cx = 0;
+ e->cx = 0;
break;
case END_KEY:
- ec->cx = ec->screen_cols - 1;
+ e->cx = e->screen_cols - 1;
break;
case PAGE_UP:
case PAGE_DOWN:
{
- int times = ec->screen_rows;
+ int times = e->screen_rows;
while (times--) {
- editor_move_cursor(ec, c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
+ editor_move_cursor(e, c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
}
}
break;
@@ -287,7 +287,7 @@ editor_process_key(editor_config_t *ec)
case ARROW_DOWN:
case ARROW_LEFT:
case ARROW_RIGHT:
- editor_move_cursor(ec, c);
+ editor_move_cursor(e, c);
break;
}
}
@@ -300,18 +300,18 @@ editor_clear_screen()
}
void
-editor_draw_rows(editor_config_t *ec, string_builder_t *sb)
+editor_draw_rows(editor_t *e, string_builder_t *sb)
{
- for (int y = 0; y < ec->screen_rows; ++y) {
- if (y >= ec->num_rows) {
- if (ec->num_rows == 0 && y == ec->screen_rows / 3) {
+ for (int y = 0; y < e->screen_rows; ++y) {
+ if (y >= e->num_rows) {
+ if (e->num_rows == 0 && y == e->screen_rows / 3) {
char welcome[80];
int welcomelen = snprintf(welcome, sizeof(welcome), "Ted editor --- version %s", TED_VERSION);
- if (welcomelen > ec->screen_cols) {
- welcomelen = ec->screen_cols;
+ if (welcomelen > e->screen_cols) {
+ welcomelen = e->screen_cols;
}
- int padding = (ec->screen_cols - welcomelen) / 2;
+ int padding = (e->screen_cols - welcomelen) / 2;
if (padding) {
string_builder_append(sb, "~", 1);
padding--;
@@ -326,30 +326,30 @@ editor_draw_rows(editor_config_t *ec, string_builder_t *sb)
string_builder_append(sb, "~", 1);
}
} else {
- int len = ec->row.size;
- if (len > ec->screen_cols) len = ec->screen_cols;
- string_builder_append(sb, ec->row.chars, len);
+ int len = e->row.size;
+ if (len > e->screen_cols) len = e->screen_cols;
+ string_builder_append(sb, e->row.chars, len);
}
string_builder_append(sb, "\x1b[K", 3);
- if (y < ec->screen_rows - 1) {
+ if (y < e->screen_rows - 1) {
string_builder_append(sb, "\r\n", 2);
}
}
}
void
-editor_refresh_screen(editor_config_t *ec)
+editor_refresh_screen(editor_t *e)
{
string_builder_t sb = STRING_BUILDER_INIT;
string_builder_append(&sb, "\x1b[?25l", 6);
string_builder_append(&sb, "\x1b[H", 3);
- editor_draw_rows(ec, &sb);
+ editor_draw_rows(e, &sb);
char buf[32];
- snprintf(buf, sizeof(buf), "\x1b[%d;%dH", ec->cy + 1, ec->cx + 1);
+ snprintf(buf, sizeof(buf), "\x1b[%d;%dH", e->cy + 1, e->cx + 1);
string_builder_append(&sb, buf, strlen(buf));
string_builder_append(&sb, "\x1b[?25h", 6);
generated by cgit v1.2.3 (git 2.25.1) at 2025-09-10 22:03:23 +0000