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Code Issues Releases Wiki Activity

Collapse numbered re/fwd

This commit is contained in:
M66B 2021-12-23 15:22:27 +01:00
parent e8487db1ff
commit d94c662870
1 changed files with 13 additions and 3 deletions
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16
app/src/main/java/eu/faircode/email/EntityMessage.java
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@ -48,6 +48,8 @@ import java.util.List;
import java.util.Locale;
import java.util.Objects;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.mail.Address;
import javax.mail.internet.InternetAddress;
@ -329,19 +331,27 @@ public class EntityMessage implements Serializable {
for (String fwd : Helper.getStrings(context, language, R.string.title_subject_forward_alt, ""))
prefixes.add(new Pair<>(fwd.trim().toLowerCase(), true));
String counts = "((\\[\\d+\\])|(\\(\\d+\\)))?";
List<Boolean> scanned = new ArrayList<>();
subject = subject.trim();
while (true) {
boolean found = false;
for (Pair<String, Boolean> prefix : prefixes)
if (subject.toLowerCase().startsWith(prefix.first)) {
for (Pair<String, Boolean> prefix : prefixes) {
String pre = prefix.first.endsWith(":")
? "(^" + Pattern.quote(prefix.first.substring(0, prefix.first.length() - 1)) + counts + ":)"
: "(^" + Pattern.quote(prefix.first) + ")";
Pattern p = Pattern.compile(pre + "(\\s*)(.*)", Pattern.CASE_INSENSITIVE);
Matcher m = p.matcher(subject);
if (m.matches()) {
found = true;
int count = scanned.size();
if (!prefix.second.equals(count == 0 ? forward : scanned.get(count - 1)))
scanned.add(prefix.second);
subject = subject.substring(prefix.first.length()).trim();
subject = m.group(m.groupCount());
break;
}
}
if (!found)
break;
}