public boolean next()

in maven-resolver-util/src/main/java/org/eclipse/aether/util/version/GenericVersion.java [219:269]

• 44 lines of code
• 14 McCabe index (conditional complexity)

        public boolean next() {
            if (index >= versionLength) {
                return false;
            }

            int state = -2;

            int start = index;
            int end = versionLength;
            terminatedByNumber = false;

            for (; index < versionLength; index++) {
                char c = version.charAt(index);

                if (c == '.' || c == '-' || c == '_') {
                    end = index;
                    index++;
                    break;
                } else {
                    if (c >= '0' && c <= '9') { // only ASCII digits
                        int digit = c - '0';
                        if (state == -1) {
                            end = index;
                            terminatedByNumber = true;
                            break;
                        }
                        if (state == 0) {
                            // normalize numbers and strip leading zeros (prereq for Integer/BigInteger handling)
                            start++;
                        }
                        state = (state > 0 || digit > 0) ? 1 : 0;
                    } else {
                        if (state >= 0) {
                            end = index;
                            break;
                        }
                        state = -1;
                    }
                }
            }

            if (end - start > 0) {
                token = version.substring(start, end);
                number = state >= 0;
            } else {
                token = "0";
                number = true;
            }

            return true;
        }