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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;
54 template <typename T> class ConstArrayRef;
57 * Writes help information for Options in ascii format.
60 * \ingroup module_commandline
62 class CommandLineHelpWriter
66 * Creates an object that writer ascii-formatted help for Options.
68 * \param[in] options Options for which help should be printed.
70 explicit CommandLineHelpWriter(const Options &options);
71 ~CommandLineHelpWriter();
74 * Sets whether long descriptions for sections are shown in the help.
76 CommandLineHelpWriter &setShowDescriptions(bool bShow);
78 * Sets time unit to show in descriptions.
80 * \param[in] timeUnit Time unit to show in descriptions.
81 * \throws std::bad_alloc if out of memory.
83 * For each time parameter, any "%t" in the description is replaced
85 * If not called, uses a default "ps".
87 CommandLineHelpWriter &setTimeUnitString(const char *timeUnit);
90 * Sets the list of known bugs/limitations.
92 * \param[in] bugs Array of bugs/limitations.
94 * Each entry in the input array identifies a separate issue.
95 * The array passed should remain valid for the lifetime of the writer
98 CommandLineHelpWriter &
99 setKnownIssues(const ConstArrayRef<const char *> &bugs);
104 * \param[in] context Context object for writing the help.
105 * \throws std::bad_alloc if out of memory.
106 * \throws FileIOError on any I/O error.
108 void writeHelp(const CommandLineHelpContext &context);
113 PrivateImplPointer<Impl> impl_;