File size: 1,360 Bytes
95ca844 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | import { stripAnsi } from "../strip-ansi/index.js";
import { eastAsianWidth } from "../eastasianwidth/index.js";
import { emojiRegex } from "../emoji-regex/index.js";
export function stringWidth(str, options = {}) {
if (typeof str !== "string" || str.length === 0) {
return 0;
}
options = {
ambiguousIsNarrow: true,
...options,
};
str = stripAnsi(str);
if (str.length === 0) {
return 0;
}
str = str.replace(emojiRegex(), " ");
const ambiguousCharacterWidth = options.ambiguousIsNarrow ? 1 : 2;
let width = 0;
for (const character of str) {
const codePoint = character.codePointAt(0);
// Ignore control characters
if (!codePoint ||
codePoint <= 0x1f ||
(codePoint >= 0x7f && codePoint <= 0x9f)) {
continue;
}
// Ignore combining characters
if (codePoint >= 0x300 && codePoint <= 0x36f) {
continue;
}
const code = eastAsianWidth(character);
switch (code) {
case "F":
case "W":
width += 2;
break;
case "A":
width += ambiguousCharacterWidth;
break;
default:
width += 1;
}
}
return width;
}
//# sourceMappingURL=index.js.map |