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Implement wordWidth

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This commit is contained in:
C. McEnroe 2020-02-02 01:54:51 -05:00
parent 05256b68fe
commit c799310d67
1 changed files with 15 additions and 6 deletions
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21
ui.c
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@ -25,6 +25,8 @@
#include <string.h>
#include <sysexits.h>
#include <time.h>
#include <wchar.h>
#include <wctype.h>
#include "chat.h"
@ -112,7 +114,6 @@ static struct Window *windowFor(size_t id) {
if (!window) err(EX_OSERR, "malloc");
window->id = id;
window->pad = newpad(PadLines, COLS);
wsetscrreg(window->pad, 0, PadLines - 1);
scrollok(window->pad, true);
wmove(window->pad, PadLines - 1, 0);
window->heat = Cold;
@ -211,20 +212,28 @@ static void styleParse(struct Style *style, const char **str, size_t *len) {
static int wordWidth(const char *str) {
size_t len = strcspn(str, " ");
// TODO: wcswidth.
return len;
int width = 0;
while (len) {
wchar_t wc;
int n = mbtowc(&wc, str, len);
if (n < 1) return width + len;
width += (iswprint(wc) ? wcwidth(wc) : 0);
str += n;
len -= n;
}
return width;
}
static void styleAdd(WINDOW *win, const char *str) {
int _, x, width;
getmaxyx(win, _, width);
int y, x, width;
getmaxyx(win, y, width);
size_t len;
struct Style style = Reset;
while (*str) {
if (*str == ' ') {
getyx(win, y, x);
const char *word = &str[strspn(str, " ")];
getyx(win, _, x);
if (width - x - 1 < wordWidth(word)) {
waddch(win, '\n');
str = word;