backend v4 half

SerpentRace_Backend/node_modules/libphonenumber-js/source/findNumbers/isValidPreCandidate.js

@@ -0,0 +1,29 @@
+// Matches strings that look like dates using "/" as a separator.
+// Examples: 3/10/2011, 31/10/96 or 08/31/95.
+const SLASH_SEPARATED_DATES = /(?:(?:[0-3]?\d\/[01]?\d)|(?:[01]?\d\/[0-3]?\d))\/(?:[12]\d)?\d{2}/
+
+// Matches timestamps.
+// Examples: "2012-01-02 08:00".
+// Note that the reg-ex does not include the
+// trailing ":\d\d" -- that is covered by TIME_STAMPS_SUFFIX.
+const TIME_STAMPS = /[12]\d{3}[-/]?[01]\d[-/]?[0-3]\d +[0-2]\d$/
+const TIME_STAMPS_SUFFIX_LEADING = /^:[0-5]\d/
+
+export default function isValidPreCandidate(candidate, offset, text)
+{
+	// Skip a match that is more likely to be a date.
+	if (SLASH_SEPARATED_DATES.test(candidate)) {
+		return false
+	}
+
+	// Skip potential time-stamps.
+	if (TIME_STAMPS.test(candidate))
+	{
+		const followingText = text.slice(offset + candidate.length)
+		if (TIME_STAMPS_SUFFIX_LEADING.test(followingText)) {
+			return false
+		}
+	}
+
+	return true
+}