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37 * Implements gmx::CommandLineHelpContext.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_commandline
44 #include "cmdlinehelpcontext.h"
46 #include "gromacs/utility/gmxassert.h"
48 #include "shellcompletions.h"
57 * Stores the global context set with GlobalCommandLineHelpContext.
59 * This is not protected by a mutex, since it is only used in command-line
60 * start-up (i.e., single-threaded context), and is inherently not thread-safe.
62 * \ingroup module_commandline
64 const CommandLineHelpContext *g_globalContext = NULL;
69 * Private implementation class for CommandLineHelpContext.
71 * \ingroup module_commandline
73 class CommandLineHelpContext::Impl
76 //! Creates the implementation class and the low-level context.
77 Impl(File *file, HelpOutputFormat format, const HelpLinks *links)
78 : writerContext_(file, format, links), moduleDisplayName_("gmx"),
79 completionWriter_(NULL), bHidden_(false)
82 //! Creates an implementation class from a low-level context.
83 explicit Impl(const HelpWriterContext &writerContext)
84 : writerContext_(writerContext),
85 completionWriter_(NULL), bHidden_(false)
89 //! Wrapped lower-level context.
90 HelpWriterContext writerContext_;
91 //! Display name for the module for which help is written.
92 std::string moduleDisplayName_;
93 //! Shell completion writer (`NULL` if not doing completions).
94 ShellCompletionWriter *completionWriter_;
95 //! Whether hidden options should be shown in help output.
99 CommandLineHelpContext::CommandLineHelpContext(
100 File *file, HelpOutputFormat format, const HelpLinks *links)
101 : impl_(new Impl(file, format, links))
105 CommandLineHelpContext::CommandLineHelpContext(
106 const HelpWriterContext &writerContext)
107 : impl_(new Impl(writerContext))
111 CommandLineHelpContext::CommandLineHelpContext(
112 ShellCompletionWriter *writer)
113 : impl_(new Impl(writer->outputFile(), eHelpOutputFormat_Other, NULL))
115 impl_->completionWriter_ = writer;
118 CommandLineHelpContext::CommandLineHelpContext(
119 const CommandLineHelpContext &other)
120 : impl_(new Impl(*other.impl_))
124 CommandLineHelpContext::~CommandLineHelpContext()
128 void CommandLineHelpContext::setModuleDisplayName(const std::string &name)
130 impl_->writerContext_.setReplacement("[THISMODULE]", "[TT]" + name + "[tt]");
131 impl_->moduleDisplayName_ = name;
134 void CommandLineHelpContext::setShowHidden(bool bHidden)
136 impl_->bHidden_ = bHidden;
139 const HelpWriterContext &CommandLineHelpContext::writerContext() const
141 return impl_->writerContext_;
144 const char *CommandLineHelpContext::moduleDisplayName() const
146 return impl_->moduleDisplayName_.c_str();
149 bool CommandLineHelpContext::showHidden() const
151 return impl_->bHidden_;
154 bool CommandLineHelpContext::isCompletionExport() const
156 return impl_->completionWriter_ != NULL;
159 ShellCompletionWriter &CommandLineHelpContext::shellCompletionWriter() const
161 GMX_RELEASE_ASSERT(isCompletionExport(),
162 "Invalid call when not writing shell completions");
163 return *impl_->completionWriter_;
166 /********************************************************************
167 * GlobalCommandLineHelpContext
171 const CommandLineHelpContext *GlobalCommandLineHelpContext::get()
173 return g_globalContext;
176 GlobalCommandLineHelpContext::GlobalCommandLineHelpContext(
177 const CommandLineHelpContext &context)
179 GMX_RELEASE_ASSERT(g_globalContext == NULL,
180 "Global context set more than once");
181 g_globalContext = &context;
184 GlobalCommandLineHelpContext::~GlobalCommandLineHelpContext()
186 g_globalContext = NULL;