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authordaurnimator <quae@daurnimator.com>2017-06-01 18:15:00 +1000
committerdaurnimator <quae@daurnimator.com>2017-06-01 18:15:00 +1000
commit5396746440918081a19f58bdc3fd784da683d69e (patch)
treeaceedf73c84b49f42527984d0e2bac2f9bac4121 /src
parent9fea5d9d6b32a8694d150398c2fff55c6696ba5f (diff)
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src/lauxlib.js: Stop using .slice in skipBOM
Diffstat (limited to 'src')
-rw-r--r--src/lauxlib.js9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/lauxlib.js b/src/lauxlib.js
index c6a975c..84b625e 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -694,16 +694,17 @@ if (!WEB) {
return bytes > 0 ? b.readUInt8() : null;
};
+ const utf8_bom = [0XEF, 0XBB, 0XBF]; /* UTF-8 BOM mark */
const skipBOM = function(lf) {
- let p = [0XEF, 0XBB, 0XBF]; /* UTF-8 BOM mark */
lf.n = 0;
let c;
+ let p = 0;
do {
c = getc(lf);
- if (c === null || c !== p[0]) return c;
- p = p.slice(1);
+ if (c === null || c !== utf8_bom[p]) return c;
+ p++;
lf.buff[lf.n++] = c; /* to be read by the parser */
- } while (p.length > 0);
+ } while (p < utf8_bom.length);
lf.n = 0; /* prefix matched; discard it */
return getc(lf); /* return next character */
};