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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/commandline/shellcompletions.h"
47 #include "gromacs/utility/gmxassert.h"
56 * Stores the global context set with GlobalCommandLineHelpContext.
58 * This is not protected by a mutex, since it is only used in command-line
59 * start-up (i.e., single-threaded context), and is inherently not thread-safe.
61 * \ingroup module_commandline
63 const CommandLineHelpContext *g_globalContext = NULL;
68 * Private implementation class for CommandLineHelpContext.
70 * \ingroup module_commandline
72 class CommandLineHelpContext::Impl
75 //! Creates the implementation class and the low-level context.
76 Impl(File *file, HelpOutputFormat format, const HelpLinks *links)
77 : writerContext_(file, format, links), moduleDisplayName_("gmx"),
78 completionWriter_(NULL), bHidden_(false)
81 //! Creates an implementation class from a low-level context.
82 explicit Impl(const HelpWriterContext &writerContext)
83 : writerContext_(writerContext),
84 completionWriter_(NULL), bHidden_(false)
88 //! Wrapped lower-level context.
89 HelpWriterContext writerContext_;
90 //! Display name for the module for which help is written.
91 std::string moduleDisplayName_;
92 //! Shell completion writer (`NULL` if not doing completions).
93 ShellCompletionWriter *completionWriter_;
94 //! Whether hidden options should be shown in help output.
98 CommandLineHelpContext::CommandLineHelpContext(
99 File *file, HelpOutputFormat format, const HelpLinks *links)
100 : impl_(new Impl(file, format, links))
104 CommandLineHelpContext::CommandLineHelpContext(
105 const HelpWriterContext &writerContext)
106 : impl_(new Impl(writerContext))
110 CommandLineHelpContext::CommandLineHelpContext(
111 ShellCompletionWriter *writer)
112 : impl_(new Impl(writer->outputFile(), eHelpOutputFormat_Other, NULL))
114 impl_->completionWriter_ = writer;
117 CommandLineHelpContext::CommandLineHelpContext(
118 const CommandLineHelpContext &other)
119 : impl_(new Impl(*other.impl_))
123 CommandLineHelpContext::~CommandLineHelpContext()
127 void CommandLineHelpContext::setModuleDisplayName(const std::string &name)
129 impl_->writerContext_.setReplacement("[THISMODULE]", "[TT]" + name + "[tt]");
130 impl_->moduleDisplayName_ = name;
133 void CommandLineHelpContext::setShowHidden(bool bHidden)
135 impl_->bHidden_ = bHidden;
138 const HelpWriterContext &CommandLineHelpContext::writerContext() const
140 return impl_->writerContext_;
143 const char *CommandLineHelpContext::moduleDisplayName() const
145 return impl_->moduleDisplayName_.c_str();
148 bool CommandLineHelpContext::showHidden() const
150 return impl_->bHidden_;
153 bool CommandLineHelpContext::isCompletionExport() const
155 return impl_->completionWriter_ != NULL;
158 ShellCompletionWriter &CommandLineHelpContext::shellCompletionWriter() const
160 GMX_RELEASE_ASSERT(isCompletionExport(),
161 "Invalid call when not writing shell completions");
162 return *impl_->completionWriter_;
165 /********************************************************************
166 * GlobalCommandLineHelpContext
170 const CommandLineHelpContext *GlobalCommandLineHelpContext::get()
172 return g_globalContext;
175 GlobalCommandLineHelpContext::GlobalCommandLineHelpContext(
176 const CommandLineHelpContext &context)
178 GMX_RELEASE_ASSERT(g_globalContext == NULL,
179 "Global context set more than once");
180 g_globalContext = &context;
183 GlobalCommandLineHelpContext::~GlobalCommandLineHelpContext()
185 g_globalContext = NULL;