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37 * Declares gmx::CommandLineHelpWriter.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_commandline
43 #ifndef GMX_COMMANDLINE_CMDLINEHELPWRITER_H
44 #define GMX_COMMANDLINE_CMDLINEHELPWRITER_H
46 #include "../utility/common.h"
51 class CommandLineHelpContext;
55 * Writes help information for Options in ascii format.
58 * \ingroup module_commandline
60 class CommandLineHelpWriter
64 * Creates an object that writer ascii-formatted help for Options.
66 * \param[in] options Options for which help should be printed.
68 explicit CommandLineHelpWriter(const Options &options);
69 ~CommandLineHelpWriter();
72 * Sets whether long descriptions for sections are shown in the help.
74 CommandLineHelpWriter &setShowDescriptions(bool bShow);
76 * Sets time unit to show in descriptions.
78 * \param[in] timeUnit Time unit to show in descriptions.
79 * \throws std::bad_alloc if out of memory.
81 * For each time parameter, any "%t" in the description is replaced
83 * If not called, uses a default "ps".
85 CommandLineHelpWriter &setTimeUnitString(const char *timeUnit);
90 * \param[in] context Context object for writing the help.
91 * \throws std::bad_alloc if out of memory.
92 * \throws FileIOError on any I/O error.
94 void writeHelp(const CommandLineHelpContext &context);
99 PrivateImplPointer<Impl> impl_;