1082 // $VNUM is a dot-separated list of integers of arbitrary length
1083 String[] split = m.group(VersionPattern.VNUM_GROUP).split("\\.");
1084 Integer[] version = new Integer[split.length];
1085 for (int i = 0; i < split.length; i++) {
1086 version[i] = Integer.parseInt(split[i]);
1087 }
1088
1089 Optional<String> pre = Optional.ofNullable(
1090 m.group(VersionPattern.PRE_GROUP));
1091
1092 String b = m.group(VersionPattern.BUILD_GROUP);
1093 // $BUILD is an integer
1094 Optional<Integer> build = (b == null)
1095 ? Optional.empty()
1096 : Optional.of(Integer.parseInt(b));
1097
1098 Optional<String> optional = Optional.ofNullable(
1099 m.group(VersionPattern.OPT_GROUP));
1100
1101 // empty '+'
1102 if ((m.group(VersionPattern.PLUS_GROUP) != null)
1103 && !build.isPresent()) {
1104 if (optional.isPresent()) {
1105 if (pre.isPresent())
1106 throw new IllegalArgumentException("'+' found with"
1107 + " pre-release and optional components:'" + s
1108 + "'");
1109 } else {
1110 throw new IllegalArgumentException("'+' found with neither"
1111 + " build or optional components: '" + s + "'");
1112 }
1113 }
1114 return new Version(List.of(version), pre, build, optional);
1115 }
1116
1117 private static boolean isSimpleNumber(String s) {
1118 for (int i = 0; i < s.length(); i++) {
1119 char c = s.charAt(i);
1120 char lowerBound = (i > 0) ? '0' : '1';
1121 if (c < lowerBound || c > '9') {
1122 return false;
1123 }
1124 }
1125 return true;
1126 }
1127
1128 /**
1129 * Returns the value of the <a href="#FEATURE">feature</a> element of
1130 * the version number.
1131 *
1132 * @return The value of the feature element
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1082 // $VNUM is a dot-separated list of integers of arbitrary length
1083 String[] split = m.group(VersionPattern.VNUM_GROUP).split("\\.");
1084 Integer[] version = new Integer[split.length];
1085 for (int i = 0; i < split.length; i++) {
1086 version[i] = Integer.parseInt(split[i]);
1087 }
1088
1089 Optional<String> pre = Optional.ofNullable(
1090 m.group(VersionPattern.PRE_GROUP));
1091
1092 String b = m.group(VersionPattern.BUILD_GROUP);
1093 // $BUILD is an integer
1094 Optional<Integer> build = (b == null)
1095 ? Optional.empty()
1096 : Optional.of(Integer.parseInt(b));
1097
1098 Optional<String> optional = Optional.ofNullable(
1099 m.group(VersionPattern.OPT_GROUP));
1100
1101 // empty '+'
1102 if (!build.isPresent()) {
1103 if (m.group(VersionPattern.PLUS_GROUP) != null) {
1104 if (optional.isPresent()) {
1105 if (pre.isPresent())
1106 throw new IllegalArgumentException("'+' found with"
1107 + " pre-release and optional components:'" + s
1108 + "'");
1109 } else {
1110 throw new IllegalArgumentException("'+' found with neither"
1111 + " build or optional components: '" + s + "'");
1112 }
1113 } else {
1114 if (optional.isPresent() && !pre.isPresent()) {
1115 throw new IllegalArgumentException("optional component"
1116 + " must be preceeded by a pre-release component"
1117 + " or '+': '" + s + "'");
1118 }
1119 }
1120 }
1121 return new Version(List.of(version), pre, build, optional);
1122 }
1123
1124 private static boolean isSimpleNumber(String s) {
1125 for (int i = 0; i < s.length(); i++) {
1126 char c = s.charAt(i);
1127 char lowerBound = (i > 0) ? '0' : '1';
1128 if (c < lowerBound || c > '9') {
1129 return false;
1130 }
1131 }
1132 return true;
1133 }
1134
1135 /**
1136 * Returns the value of the <a href="#FEATURE">feature</a> element of
1137 * the version number.
1138 *
1139 * @return The value of the feature element
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