JDK-8290845: Consider an alternative item separator for multi-item option values

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/resources/standard.properties

@@ -531,14 +531,16 @@ doclet.usage.link-platform-properties.description=\
     Link to platform documentation URLs declared in properties file at <url>
 
 doclet.usage.excludedocfilessubdir.parameters=\
-    <name>:...
+    <name>,<name>,...
 doclet.usage.excludedocfilessubdir.description=\
-    Exclude any doc-files subdirectories with given name
+    Exclude any doc-files subdirectories with given name.\n\
+    ':' can also be used anywhere in the argument as a separator.
 
 doclet.usage.group.parameters=\
-    <name> <g1>:<g2>...
+    <name> <g1>,<g2>...
 doclet.usage.group.description=\
-    Group specified elements together in overview page
+    Group specified elements together in overview page.\n\
+    ':' can also be used anywhere in the argument as a separator.
 
 doclet.usage.legal-notices.parameters=\
     'default' | 'none' | <directory>
@@ -552,9 +554,10 @@ doclet.usage.nodeprecated.description=\
     Do not include @deprecated information
 
 doclet.usage.noqualifier.parameters=\
-    <name1>:<name2>:...
+    <name1>,<name2>,...
 doclet.usage.noqualifier.description=\
-    Exclude the list of qualifiers from the output
+    Exclude the list of qualifiers from the output.\n\
+    ':' can also be used anywhere in the argument as a separator.
 
 doclet.usage.nosince.description=\
     Do not include @since information

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/BaseConfiguration.java

@@ -471,9 +471,13 @@ private void initTagletManager(Set<List<String>> customTagStrs) {
                     tagletManager.addCustomTag(args.get(1), fileManager);
                     continue;
                 }
-                List<String> tokens = tokenize(args.get(1), TagletManager.SIMPLE_TAGLET_OPT_SEPARATOR, 3);
+                /* Since there are few constraints on the characters in a tag name,
+                 * and real world examples with ':' in the tag name, we cannot simply use
+                 * String.split(regex);  instead, we tokenize the string, allowing
+                 * special characters to be escaped with '\'. */
+                List<String> tokens = tokenize(args.get(1), 3);
                 switch (tokens.size()) {
-                    case 1:
+                    case 1 -> {
                         String tagName = args.get(1);
                         if (tagletManager.isKnownCustomTag(tagName)) {
                             //reorder a standard tag
@@ -484,18 +488,16 @@ private void initTagletManager(Set<List<String>> customTagStrs) {
                             heading.setCharAt(0, Character.toUpperCase(tagName.charAt(0)));
                             tagletManager.addNewSimpleCustomTag(tagName, heading.toString(), "a");
                         }
-                        break;
+                    }
 
-                    case 2:
+                    case 2 ->
                         //Add simple taglet without heading, probably to excluding it in the output.
                         tagletManager.addNewSimpleCustomTag(tokens.get(0), tokens.get(1), "");
-                        break;
 
-                    case 3:
+                    case 3 ->
                         tagletManager.addNewSimpleCustomTag(tokens.get(0), tokens.get(2), tokens.get(1));
-                        break;
 
-                    default:
+                    default ->
                         messages.error("doclet.Error_invalid_custom_tag_argument", args.get(1));
                 }
             }
@@ -505,18 +507,17 @@ private void initTagletManager(Set<List<String>> customTagStrs) {
     }
 
     /**
-     * Given a string, return an array of tokens.  The separator can be escaped
-     * with the '\' character.  The '\' character may also be escaped by the
-     * '\' character.
+     * Given a string, return an array of tokens, separated by ':'.
+     * The separator character can be escaped with the '\' character.
+     * The '\' character may also be escaped with the '\' character.
      *
-     * @param s         the string to tokenize.
-     * @param separator the separator char.
+     * @param s         the string to tokenize
      * @param maxTokens the maximum number of tokens returned.  If the
      *                  max is reached, the remaining part of s is appended
      *                  to the end of the last token.
-     * @return an array of tokens.
+     * @return an array of tokens
      */
-    private List<String> tokenize(String s, char separator, int maxTokens) {
+    private List<String> tokenize(String s, int maxTokens) {
         List<String> tokens = new ArrayList<>();
         StringBuilder token = new StringBuilder();
         boolean prevIsEscapeChar = false;
@@ -526,7 +527,7 @@ private List<String> tokenize(String s, char separator, int maxTokens) {
                 // Case 1:  escaped character
                 token.appendCodePoint(currentChar);
                 prevIsEscapeChar = false;
-            } else if (currentChar == separator && tokens.size() < maxTokens - 1) {
+            } else if (currentChar == ':' && tokens.size() < maxTokens - 1) {
                 // Case 2:  separator
                 tokens.add(token.toString());
                 token = new StringBuilder();

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/BaseOptions.java

@@ -419,7 +419,7 @@ public boolean process(String opt, List<String> args) {
                 new Option(resources, "-excludedocfilessubdir", 1) {
                     @Override
                     public boolean process(String opt, List<String> args) {
-                        addToSet(excludedDocFileDirs, args.get(0));
+                        excludedDocFileDirs.addAll(List.of(args.get(0).split("[,:]")));
                         return true;
                     }
                 },
@@ -536,7 +536,7 @@ public boolean process(String opt, List<String> args) {
                 new Option(resources, "-noqualifier", 1) {
                     @Override
                     public boolean process(String opt, List<String> args) {
-                        addToSet(excludedQualifiers, args.get(0));
+                        excludedQualifiers.addAll(List.of(args.get(0).split("[,:]")));
                         return true;
                     }
                 },
@@ -764,15 +764,6 @@ private boolean checkOutputFileEncoding(String docencoding) {
         return true;
     }
 
-    private void addToSet(Set<String> s, String str) {
-        StringTokenizer st = new StringTokenizer(str, ":");
-        String current;
-        while (st.hasMoreTokens()) {
-            current = st.nextToken();
-            s.add(current);
-        }
-    }
-
     /**
      * Add a trailing file separator, if not found. Remove superfluous
      * file separators if any. Preserve the front double file separator for

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/taglets/TagletManager.java

@@ -85,11 +85,6 @@
  */
 public class TagletManager {
 
-    /**
-     * The default separator for the simple tag option.
-     */
-    public static final char SIMPLE_TAGLET_OPT_SEPARATOR = ':';
-
     /**
      * All taglets, keyed either by their {@link Taglet#getName() name},
      * or by an alias.

src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/toolkit/util/Group.java

@@ -115,7 +115,7 @@ public Group(BaseConfiguration configuration) {
      * @param moduleNameFormList List of the module name formats.
      */
     public boolean checkModuleGroups(String groupname, String moduleNameFormList) {
-        String[] mdlPatterns = moduleNameFormList.split(":");
+        String[] mdlPatterns = moduleNameFormList.split("[,:]");
         if (groupList.contains(groupname)) {
             initMessages();
             messages.warning("doclet.Groupname_already_used", groupname);
@@ -161,7 +161,7 @@ public boolean checkModuleGroups(String groupname, String moduleNameFormList) {
      * @param pkgNameFormList List of the package name formats.
      */
     public boolean checkPackageGroups(String groupname, String pkgNameFormList) {
-        String[] pkgPatterns = pkgNameFormList.split(":");
+        String[] pkgPatterns = pkgNameFormList.split("[,:]");
         if (groupList.contains(groupname)) {
             initMessages();
             messages.warning("doclet.Groupname_already_used", groupname);

src/jdk.javadoc/share/man/javadoc.1

@@ -1,4 +1,4 @@
-.\" Copyright (c) 1994, 2021, Oracle and/or its affiliates. All rights reserved.
+.\" Copyright (c) 1994, 2022, Oracle and/or its affiliates. All rights reserved.
 .\" DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 .\"
 .\" This code is free software; you can redistribute it and/or modify it
@@ -21,7 +21,7 @@
 .\"
 .\" Automatically generated by Pandoc 2.3.1
 .\"
-.TH "JAVADOC" "1" "2023" "JDK 20\-ea" "JDK Commands"
+.TH "JAVADOC" "1" "2022" "JDK 20\-internal" "JDK Commands"
 .hy
 .SH NAME
 .PP
@@ -609,6 +609,13 @@ javadoc\ \-docencoding\ "iso\-8859\-1"\ mypackage
 .TP
 .B \f[CB]\-docfilessubdirs\f[R]
 Recursively copies doc\-file subdirectories.
+Enables deep copying of doc\-files directories.
+Subdirectories and all contents are recursively copied to the
+destination.
+For example, the directory \f[CB]doc\-files/example/images\f[R] and all of
+its contents are copied.
+The \f[B]\f[BC]\-excludedocfilessubdir\f[B]\f[R] option can be used to
+exclude specific subdirectories.
 .RS
 .RE
 .TP
@@ -625,14 +632,12 @@ For example,
 .RS
 .RE
 .TP
-.B \f[CB]\-excludedocfilessubdir\f[R] \f[I]name\f[R]
-Excludes any doc files subdirectories with the given name.
-Enables deep copying of doc\-files directories.
-Subdirectories and all contents are recursively copied to the
-destination.
-For example, the directory \f[CB]doc\-files/example/images\f[R] and all of
-its contents are copied.
-There is also an option to exclude subdirectories.
+.B \f[CB]\-excludedocfilessubdir\f[R] \f[I]name1\f[R]\f[CB],\f[R]\f[I]name2...\f[R]
+Excludes any subdirectories with the given names when recursively
+copying doc\-file subdirectories.
+See \f[B]\f[BC]\-docfilessubdirs\f[B]\f[R].
+For historical reasons, \f[CB]:\f[R] can be used anywhere in the argument
+as a separator instead of \f[CB],\f[R].
 .RS
 .RE
 .TP
@@ -648,8 +653,10 @@ Use escape characters for any internal quotation marks within a footer.
 .RS
 .RE
 .TP
-.B \f[CB]\-group\f[R] \f[I]namep1\f[R]\f[CB]:\f[R]\f[I]p2\f[R]
+.B \f[CB]\-group\f[R] \f[I]name\f[R] \f[I]p1\f[R]\f[CB],\f[R]\f[I]p2...\f[R]
 Group the specified packages together in the Overview page.
+For historical reasons, \f[CB]:\f[R] can be used as a separator anywhere
+in the argument instead of \f[CB],\f[R].
 .RS
 .RE
 .TP
@@ -1004,10 +1011,12 @@ These links are generated by default.
 .RS
 .RE
 .TP
-.B \f[CB]\-noqualifier\f[R] \f[I]name1\f[R]\f[CB]:\f[R]\f[I]name2\f[R]...
+.B \f[CB]\-noqualifier\f[R] \f[I]name1\f[R]\f[CB],\f[R]\f[I]name2...\f[R]
 Excludes the list of qualifiers from the output.
 The package name is removed from places where class or interface names
 appear.
+For historical reasons, \f[CB]:\f[R] can be used anywhere in the argument
+as a separator instead of \f[CB],\f[R].
 .RS
 .PP
 The following example omits all package qualifiers:
@@ -1134,7 +1143,7 @@ snippet, and then searches all the directories in the given list.
 .RS
 .RE
 .TP
-.B \f[CB]\-sourcetab\f[R] \f[I]tablength\f[R]
+.B \f[CB]\-sourcetab\f[R] \f[I]tab\-length\f[R]
 Specifies the number of spaces each tab uses in the source.
 .RS
 .RE
@@ -1162,6 +1171,8 @@ to include a \f[CB]\-tag\f[R] option for every custom tag that is present
 in the source code, disabling (with \f[CB]X\f[R]) those that aren\[aq]t
 being output in the current run.
 The colon (\f[CB]:\f[R]) is always the separator.
+To include a colon in the tag name, escape it with a backward slash
+(\f[CB]\\\f[R]).
 The \f[CB]\-tag\f[R] option outputs the tag heading, \f[I]header\f[R], in
 bold, followed on the next line by the text from its single argument.
 Similar to any block tag, the argument text can contain inline tags,
@@ -1170,7 +1181,35 @@ The output is similar to standard one\-argument tags, such as the
 \f[CB]\@return\f[R] and \f[CB]\@author\f[R] tags.
 Omitting a \f[I]header\f[R] value causes the \f[I]name\f[R] to be the
 heading.
+\f[I]locations\f[R] is a list of characters specifying the kinds of
+declarations in which the tag may be used.
+The following characters may be used, in either uppercase or lowercase:
 .RS
+.IP \[bu] 2
+\f[CB]A\f[R]: all declarations
+.IP \[bu] 2
+\f[CB]C\f[R]: constructors
+.IP \[bu] 2
+\f[CB]F\f[R]: fields
+.IP \[bu] 2
+\f[CB]M\f[R]: methods
+.IP \[bu] 2
+\f[CB]O\f[R]: the overview page and other documentation files in
+\f[CB]doc\-files\f[R] subdirectories
+.IP \[bu] 2
+\f[CB]P\f[R]: packages
+.IP \[bu] 2
+\f[CB]S\f[R]: modules
+.IP \[bu] 2
+\f[CB]T\f[R]: types (classes and interfaces)
+.IP \[bu] 2
+\f[CB]X\f[R]: nowhere: the tag is disabled, and will be ignored
+.PP
+The order in which tags are given on the command line will be used as
+the order in which the tags appear in the generated output.
+You can include standard tags in the order given on the command line by
+using the \f[CB]\-tag\f[R] option with no \f[I]locations\f[R] or
+\f[I]header\f[R].
 .RE
 .TP
 .B \f[CB]\-taglet\f[R] \f[I]class\f[R]