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Reduce duplication in the validateCSSFont helper function

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Currently we're *virtually* duplicating the same code, for validating quotation marks, twice in this helper function.

The size decrease is quite small (107 bytes) and this makes the code slightly harder to reader, hence I completely understand if this patch is rejected.
This commit is contained in:
Jonas Jenwald 2023-03-25 13:25:44 +01:00
parent 8a2dfdb032
commit ef70988027
1 changed files with 6 additions and 9 deletions
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15
src/core/core_utils.js
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@ -470,14 +470,11 @@ function validateCSSFont(cssFontInfo) {
const { fontFamily, fontWeight, italicAngle } = cssFontInfo;
// See https://developer.mozilla.org/en-US/docs/Web/CSS/string.
if (/^".*"$/.test(fontFamily)) {
if (/[^\\]"/.test(fontFamily.slice(1, -1))) {
warn(`XFA - FontFamily contains some unescaped ": ${fontFamily}.`);
return false;
}
} else if (/^'.*'$/.test(fontFamily)) {
if (/[^\\]'/.test(fontFamily.slice(1, -1))) {
warn(`XFA - FontFamily contains some unescaped ': ${fontFamily}.`);
const m = /^("|').*("|')$/.exec(fontFamily);
if (m && m[1] === m[2]) {
const re = new RegExp(`[^\\\\]${m[1]}`);
if (re.test(fontFamily.slice(1, -1))) {
warn(`XFA - FontFamily contains unescaped ${m[1]}: ${fontFamily}.`);
return false;
}
} else {
@ -485,7 +482,7 @@ function validateCSSFont(cssFontInfo) {
for (const ident of fontFamily.split(/[ \t]+/)) {
if (/^(\d|(-(\d|-)))/.test(ident) || !/^[\w-\\]+$/.test(ident)) {
warn(
`XFA - FontFamily contains some invalid <custom-ident>: ${fontFamily}.`
`XFA - FontFamily contains invalid <custom-ident>: ${fontFamily}.`
);
return false;
}