Update included CLI11 library to 2.6.2

contrib/CLI11/LICENSE

@@ -1,4 +1,4 @@
-CLI11 2.2 Copyright (c) 2017-2024 University of Cincinnati, developed by Henry
+CLI11 2.6.2 Copyright (c) 2017-2026 University of Cincinnati, developed by Henry
 Schreiner under NSF AWARD 1414736. All rights reserved.
 
 Redistribution and use in source and binary forms of CLI11, with or without

contrib/CLI11/README.contrib

@@ -1,2 +1,2 @@
 Source: https://github.com/CLIUtils/CLI11
-Revision: v2.4.2
+Revision: v2.6.2

contrib/CLI11/include/CLI/Argv.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //

contrib/CLI11/include/CLI/CLI.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
@@ -41,4 +41,6 @@
 
 #include "Formatter.hpp"
 
+#include "ExtraValidators.hpp"
+
 // IWYU pragma: end_exports

contrib/CLI11/include/CLI/Config.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //

contrib/CLI11/include/CLI/ConfigFwd.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
@@ -16,7 +16,7 @@
 #include <string>
 #include <vector>
 // [CLI11:public_includes:end]
-
+#include "Encoding.hpp"
 #include "Error.hpp"
 #include "StringTools.hpp"
 
@@ -34,12 +34,14 @@ struct ConfigItem {
     std::string name{};
     /// Listing of inputs
     std::vector<std::string> inputs{};
-
+    /// @brief indicator if a multiline vector separator was inserted
+    bool multiline{false};
     /// The list of parents and name joined by "."
     CLI11_NODISCARD std::string fullname() const {
         std::vector<std::string> tmp = parents;
         tmp.emplace_back(name);
         return detail::join(tmp, ".");
+        (void)multiline;  // suppression for cppcheck false positive
     }
 };
 
@@ -68,7 +70,12 @@ class Config {
 
     /// Parse a config file, throw an error (ParseError:ConfigParseError or FileError) on failure
     CLI11_NODISCARD std::vector<ConfigItem> from_file(const std::string &name) const {
+#if defined CLI11_HAS_FILESYSTEM && CLI11_HAS_FILESYSTEM > 0
+        std::ifstream input{to_path(name)};
+#else
         std::ifstream input{name};
+#endif
+
         if(!input.good())
             throw FileError::Missing(name);
 
@@ -100,6 +107,10 @@ class ConfigBase : public Config {
     uint8_t maximumLayers{255};
     /// the separator used to separator parent layers
     char parentSeparatorChar{'.'};
+    /// comment default values
+    bool commentDefaultsBool = false;
+    /// specify the config reader should collapse repeated field names to a single vector
+    bool allowMultipleDuplicateFields{false};
     /// Specify the configuration index to use for arrayed sections
     int16_t configIndex{-1};
     /// Specify the configuration section that should be used
@@ -147,6 +158,11 @@ class ConfigBase : public Config {
         parentSeparatorChar = sep;
         return this;
     }
+    /// comment default value options
+    ConfigBase *commentDefaults(bool comDef = true) {
+        commentDefaultsBool = comDef;
+        return this;
+    }
     /// get a reference to the configuration section
     std::string &sectionRef() { return configSection; }
     /// get the section
@@ -166,6 +182,11 @@ class ConfigBase : public Config {
         configIndex = sectionIndex;
         return this;
     }
+    /// specify that multiple duplicate arguments should be merged even if not sequential
+    ConfigBase *allowDuplicateFields(bool value = true) {
+        allowMultipleDuplicateFields = value;
+        return this;
+    }
 };
 
 /// the default Config is the TOML file format

contrib/CLI11/include/CLI/Encoding.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //

contrib/CLI11/include/CLI/Error.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2017-2024, University of Cincinnati, developed by Henry Schreiner
+// Copyright (c) 2017-2026, University of Cincinnati, developed by Henry Schreiner
 // under NSF AWARD 1414736 and by the respective contributors.
 // All rights reserved.
 //
@@ -41,7 +41,7 @@ namespace CLI {
 
 /// These codes are part of every error in CLI. They can be obtained from e using e.exit_code or as a quick shortcut,
 /// int values from e.get_error_code().
-enum class ExitCodes {
+enum class ExitCodes : int {
     Success = 0,
     IncorrectConstruction = 100,
     BadNameString,
@@ -132,8 +132,8 @@ class BadNameString : public ConstructionError {
     static BadNameString BadPositionalName(std::string name) {
         return BadNameString("Invalid positional Name: " + name);
     }
-    static BadNameString DashesOnly(std::string name) {
-        return BadNameString("Must have a name, not just dashes: " + name);
+    static BadNameString ReservedName(std::string name) {
+        return BadNameString("Names '-','--','++' are reserved and not allowed as option names " + name);
     }
     static BadNameString MultiPositionalNames(std::string name) {
         return BadNameString("Only one positional name allowed, remove: " + name);
@@ -275,7 +275,7 @@ class ArgumentMismatch : public ParseError {
                                 std::to_string(received));
     }
     static ArgumentMismatch AtMost(std::string name, int num, std::size_t received) {
-        return ArgumentMismatch(name + ": At Most " + std::to_string(num) + " required but received " +
+        return ArgumentMismatch(name + ": At most " + std::to_string(num) + " required but received " +
                                 std::to_string(received));
     }
     static ArgumentMismatch TypedAtLeast(std::string name, int num, std::string type) {
@@ -310,13 +310,13 @@ class ExtrasError : public ParseError {
     explicit ExtrasError(std::vector<std::string> args)
         : ExtrasError((args.size() > 1 ? "The following arguments were not expected: "
                                        : "The following argument was not expected: ") +
-                          detail::rjoin(args, " "),
+                          detail::join(args, " "),
                       ExitCodes::ExtrasError) {}
     ExtrasError(const std::string &name, std::vector<std::string> args)
         : ExtrasError(name,
                       (args.size() > 1 ? "The following arguments were not expected: "
                                        : "The following argument was not expected: ") +
-                          detail::rjoin(args, " "),
+                          detail::join(args, " "),
                       ExitCodes::ExtrasError) {}
 };
 
@@ -347,7 +347,7 @@ class HorribleError : public ParseError {
 
 // After parsing
 
-/// Thrown when counting a non-existent option
+/// Thrown when counting a nonexistent option
 class OptionNotFound : public Error {
     CLI11_ERROR_DEF(Error, OptionNotFound)
     explicit OptionNotFound(std::string name) : OptionNotFound(name + " not found", ExitCodes::OptionNotFound) {}