override fun matches()

in version-utils/src/commonMain/kotlin/org/jetbrains/packagesearch/packageversionutils/VersionTokenMatcher.kt [9:38]

• 20 lines of code
• 9 McCabe index (conditional complexity)

        override fun matches(value: String): Boolean {
            val substringIndex = value.indexOf(toMatch, ignoreCase = true)
            if (substringIndex < 0) return false

            val afterSubstringIndex = substringIndex + toMatchLength
            val valueLength = value.length

            // Case 1. The value matches entirely
            if (substringIndex == 0 && afterSubstringIndex == valueLength) return true

            // Case 2. The match is at the beginning of value
            if (substringIndex == 0) {
                val nextLetter = value[afterSubstringIndex]
                return !nextLetter.isLetter() // Matching whole word
            }

            // Case 2. The match is at the end of value
            if (afterSubstringIndex == valueLength) {
                val previousLetter = value[substringIndex - 1]
                return !previousLetter.isLetterOrDigit() && previousLetter != '_' // Matching whole word
            }

            // Case 3. The match is somewhere inside of value
            val previousLetter = value[substringIndex - 1]
            val startsAtWordBoundary = !previousLetter.isLetterOrDigit() && previousLetter != '_'
            val nextLetter = value[afterSubstringIndex]
            val endsAtWordBoundary = !nextLetter.isLetter()

            return startsAtWordBoundary && endsAtWordBoundary // Needs to be matching a whole word
        }