Bruce/ascii-table
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Bruce Hill 2019-01-05 22:26:00 -08:00
parent a9062812aa
commit b3264e954c
1 changed files with 32 additions and 21 deletions
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53
ascii.c
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@ -91,6 +91,7 @@ static inline void shift(int dy, int dx) {
move(y+dy, x+dx);
}
// Same as printw, except it doesn't do text wrapping, and it sets attributes
#define printwattrs(_attrs, ...) \
{ char _buf[W+1];\
chtype _bufch[W+1];\
@ -132,7 +133,7 @@ static void redraw(int selected)
int selectedx = (selected / (H-2)) * COL_WIDTH;
int scrollx = (selectedx + COL_WIDTH < W) ? 0 : (((selectedx + COL_WIDTH) - W)/COL_WIDTH+1)*COL_WIDTH;
if (last_selected == -1 || last_scrollx != scrollx || last_W != W || last_H != H) {
// Redraw everything
// Redraw all the entries
erase();
for (int i = 0; i < 128; i++) {
draw_entry(i, scrollx, i == selected ? A_REVERSE : 0);
@ -141,12 +142,15 @@ static void redraw(int selected)
last_H = H;
last_W = W;
} else if (selected != last_selected) {
// Otherwise, we can lazily just redraw 2 entries
draw_entry(selected, scrollx, A_REVERSE);
draw_entry(last_selected, scrollx, 0);
}
last_selected = selected;
}
// Find the ascii character starting at `start`, going in `direction`, matching
// `searchbuff`, and return `fallback` if nothing matches.
static int find_ascii_match(int start, int fallback, int direction, char *searchbuf)
{
if (searchbuf[0] == '\0') return fallback;
@ -173,10 +177,10 @@ static int find_ascii_match(int start, int fallback, int direction, char *search
return fallback;
}
// To prevent wasted work, wait until 200ms has elapsed with no additional
// resizes before doing anything, then set the correct W/H values.
static void handle_resize()
{
// To prevent wasted work, wait until 200ms has elapsed
// with no additional resizes before doing anything
timeout(0);
do {
// Wait 200ms
@ -199,24 +203,30 @@ int main(int argc, char *argv[])
return 0;
}
char* term_type = getenv("TERM");
if (term_type == NULL || *term_type == '\0') {
term_type = "unknown";
// Instead of initscr(), set up the terminal this way to play nicely with
// the unix pipeline:
{
char* term_type = getenv("TERM");
if (term_type == NULL || *term_type == '\0') {
term_type = "unknown";
}
FILE* term_in = fopen("/dev/tty", "r");
if (term_in == NULL) {
perror("fopen(/dev/tty)");
exit(EXIT_FAILURE);
}
SCREEN *screen = newterm(term_type, stderr, term_in);
set_term(screen);
}
FILE* term_in = fopen("/dev/tty", "r");
if (term_in == NULL) {
perror("fopen(/dev/tty)");
exit(EXIT_FAILURE);
}
SCREEN *screen = newterm(term_type, stderr, term_in);
set_term(screen);
set_escdelay(5);
W = getmaxx(stdscr);
H = getmaxy(stdscr);
noecho();
set_escdelay(5);
keypad(stdscr, 1);
curs_set(2);
start_color();
DECIMAL_COLORS = new_colorpair(COLOR_YELLOW, COLOR_BLACK) | A_BOLD;
HEX_COLORS = new_colorpair(COLOR_GREEN, COLOR_BLACK) | A_BOLD;
CHAR_COLORS = new_colorpair(COLOR_MAGENTA, COLOR_BLACK) | A_BOLD;
@ -231,8 +241,8 @@ int main(int argc, char *argv[])
INSERT_MODE_COLORS = new_colorpair(COLOR_WHITE, COLOR_RED) | A_BOLD;
SEARCH_MODE_COLORS = new_colorpair(COLOR_BLACK, COLOR_BLUE);
size_t chunk = 256;
size_t buf_size = chunk, buf_i = 0;
size_t buf_chunk = 1024;
size_t buf_size = buf_chunk, buf_i = 0;
char *outbuf = calloc(buf_size, sizeof(char));
{ // Read stdin if anything was piped in
@ -241,11 +251,12 @@ int main(int argc, char *argv[])
desc.events = POLLIN;
int ret = poll(&desc, 1, 50);
if (ret > 0) {
for (size_t consumed; (consumed = fread(&outbuf[buf_i], 1, chunk, stdin));
buf_i += consumed) {
if (consumed == chunk) {
chunk *= 2;
buf_size += chunk;
size_t consumed;
while ((consumed = fread(&outbuf[buf_i], 1, buf_chunk, stdin))) {
buf_i += consumed;
if (consumed == buf_chunk) {
buf_chunk *= 2;
buf_size += buf_chunk;
outbuf = realloc(outbuf, buf_size);
}
}