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import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.checkerframework.checker.regex.RegexUtil;
import org.checkerframework.checker.regex.qual.*;
class TestIsRegex {
void test1(String str1) throws Exception {
if (!RegexUtil.isRegex(str1)) {
throw new Exception();
}
Pattern.compile(str1);
}
void test2(String str2) throws Exception {
if (!RegexUtil.isRegex(str2)) {
// :: error: (argument.type.incompatible)
Pattern.compile(str2);
}
}
void test3(String str3) throws Exception {
if (RegexUtil.isRegex(str3)) {
Pattern.compile(str3);
} else {
throw new Exception();
}
}
void test4(String str4) throws Exception {
if (RegexUtil.isRegex(str4)) {
Pattern.compile(str4);
} else {
// :: error: (argument.type.incompatible)
Pattern.compile(str4);
}
}
void test5(String str5) throws Exception {
if (!RegexUtil.isRegex(str5, 3)) {
throw new Exception();
}
Pattern.compile(str5).matcher("test").group(3);
}
void test6(String str6) throws Exception {
if (RegexUtil.isRegex(str6, 4)) {
Pattern.compile(str6).matcher("4kdfj").group(4);
} else {
// :: error: (argument.type.incompatible)
Pattern.compile(str6);
}
}
void test7(String str7) throws Exception {
if (RegexUtil.isRegex(str7, 5)) {
// :: error: (group.count.invalid)
Pattern.compile(str7).matcher("4kdfj").group(6);
}
}
@Regex Pattern test8(String input) {
String datePattern = null;
if (input != null) {
datePattern = "regexkdafj";
if (!RegexUtil.isRegex(datePattern, 1)) {
throw new Error(
"error parsing regex "
+ datePattern
+ ": "
+ RegexUtil.regexError(datePattern));
}
return Pattern.compile(datePattern);
}
@Regex(1) String dp = datePattern;
if (input != null) { // just some test...
Pattern pattern = datePattern != null ? Pattern.compile(datePattern) : null;
return pattern;
} else {
Pattern pattern = datePattern != null ? Pattern.compile(dp) : null;
return pattern;
}
}
@Regex(1) Pattern test9(String input) {
String datePattern = null;
if (input != null) {
datePattern = "regexkdafj";
if (!RegexUtil.isRegex(datePattern, 1)) {
throw new Error(
"error parsing regex "
+ datePattern
+ ": "
+ RegexUtil.regexError(datePattern));
}
return Pattern.compile(datePattern);
}
@Regex(1) String dp = datePattern;
if (input != null) { // just some test...
Pattern pattern = datePattern != null ? Pattern.compile(datePattern) : null;
return pattern;
} else {
Pattern pattern = datePattern != null ? Pattern.compile(dp) : null;
return pattern;
}
}
void test10(String s) throws Exception {
if (!RegexUtil.isRegex(s, 2)) {
throw new Exception();
}
Pattern p = Pattern.compile(s);
Matcher m = p.matcher("abc");
String g = m.group(1);
}
void test11(String s) throws Exception {
@Regex(2) String l1 = RegexUtil.asRegex(s, 2);
@Regex(1) String l2 = RegexUtil.asRegex(s, 2);
@Regex String l3 = RegexUtil.asRegex(s, 2);
// :: error: (assignment.type.incompatible)
@Regex(3) String l4 = RegexUtil.asRegex(s, 2);
}
@Regex(2) String test12(String s, boolean b) throws Exception {
return b ? null : RegexUtil.asRegex(s, 2);
}
}
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