kezhuw commented on code in PR #2206:
URL: https://github.com/apache/zookeeper/pull/2206#discussion_r1857741746
##########
zookeeper-jute/src/main/java/org/apache/jute/compiler/JRecord.java:
##########
@@ -767,4 +793,88 @@ public static String getCsharpFQName(String name) {
}
return fQName.toString();
}
+
+ public String getJavaFieldComments(JField jField) {
+ return getFieldComments(jField, " ");
+ }
+
+ public String getCFieldComments(JField jField) {
+ return getFieldComments(jField, " ");
+ }
+
+ private String getFieldComments(JField jField, String space) {
+ if (jField == null || jField.getTypeToken() == null ||
jField.getNextToken() == null) {
+ return "";
+ }
+
+ // get the comment before the line
+ List<String> comments =
getComments(jField.getTypeToken().specialToken);
+
+ // get the end-of-line comments of fields
+ // If the current field and the next field are on the same line,
+ // the leading field comment of the next field should be discarded
+ Token tmpToken = jField.getNextToken();
+ while (tmpToken.specialToken != null) {
+
+ if (jField.getTypeToken().beginLine ==
tmpToken.specialToken.beginLine) {
+ Token endLineComments = tmpToken.specialToken;
+ tmpToken.specialToken = null;
+ comments.addAll(getComments(endLineComments));
+ break;
+ }
+
+ tmpToken = tmpToken.specialToken;
+ }
+
+ return formatComments(space, comments);
+ }
+
+ public String getRecordComments() {
+ if (getRecordToken() == null || getRecordToken().specialToken == null)
{
+ return "";
+ }
+
+ // get the comments before the class
+ return formatComments("", getComments(getRecordToken().specialToken));
+ }
+
+ private static String formatComments(String space, List<String>
commentList) {
+ if (commentList == null || commentList.isEmpty()) {
+ return "";
+ }
+
+ String comments = String.join("", commentList);
+
+ StringBuilder formatBuilder = new StringBuilder();
+ for (String s : comments.split("\r?\n")) {
+ formatBuilder.append("\n")
+ .append(space)
+ .append(s.replaceAll("^[ \t]+", ""));
+ }
+
+ return formatBuilder.append("\n").toString();
+ }
+
+ private static List<String> getComments(Token token) {
Review Comment:
> Or how about <MULTI_LINE_COMMENT: "/*" (~["*"])* "*" (~["*","/"] (~["*"])*
"*" | "*")* "/"> ?
(https://stackoverflow.com/questions/34550579/multiline-comments-in-javacc)
> I think it is easy to reconstruct original format if multi-line comment is
captured into one token.
I am not sure the `LOOKAHEAD` could help here. I tried but did not succeed.
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