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37 * Declares gmx::CommandLineHelpModule.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_commandline
42 #ifndef GMX_COMMANDLINE_CMDLINEHELPMODULE_H
43 #define GMX_COMMANDLINE_CMDLINEHELPMODULE_H
45 #include "cmdlinemodule.h"
46 #include "cmdlinemodulemanager-impl.h"
48 #include "gromacs/onlinehelp/helptopicinterface.h"
49 #include "gromacs/utility/common.h"
54 class CommandLineHelpContext;
57 class CommandLineHelpModuleImpl;
61 * Command-line module for producing help.
63 * This module implements the 'help' subcommand that is automatically added by
64 * CommandLineModuleManager.
66 * \ingroup module_commandline
68 class CommandLineHelpModule : public CommandLineModuleInterface
72 * Creates a command-line help module.
74 * \param[in] programInfo Information about the running binary.
75 * \param[in] modules List of modules for to use for module listings.
76 * \param[in] groups List of module groups.
77 * \throws std::bad_alloc if out of memory.
79 CommandLineHelpModule(const ProgramInfo &programInfo,
80 const CommandLineModuleMap &modules,
81 const CommandLineModuleGroupList &groups);
82 ~CommandLineHelpModule();
85 * Creates a help topic for a command-line module.
87 * \param[in] module Module the create the help topic for.
88 * \throws std::bad_alloc if out of memory.
90 * The caller should add the topic using addTopic() if that is desired.
91 * This method is provided separately to allow for strong exception
92 * safety in CommandLineModuleManager::addModule().
95 createModuleHelpTopic(const CommandLineModuleInterface &module) const;
97 * Adds a top-level help topic.
99 * \param[in] topic Help topic to add.
100 * \throws std::bad_alloc if out of memory.
102 void addTopic(HelpTopicPointer topic);
103 //! Sets whether hidden options will be shown in help.
104 void setShowHidden(bool bHidden);
106 * Sets an override to show the help for the given module.
108 * If called, the help module directly prints the help for the given
109 * module when called, skipping any other processing.
111 void setModuleOverride(const CommandLineModuleInterface &module);
113 virtual const char *name() const { return "help"; }
114 virtual const char *shortDescription() const
116 return "Print help information";
119 virtual int run(int argc, char *argv[]);
120 virtual void writeHelp(const CommandLineHelpContext &context) const;
123 typedef CommandLineHelpModuleImpl Impl;
125 PrivateImplPointer<Impl> impl_;