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37 * Implements gmx::CommandLineHelpContext.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_commandline
42 #include "cmdlinehelpcontext.h"
44 #include "gromacs/commandline/shellcompletions.h"
45 #include "gromacs/utility/gmxassert.h"
54 * Stores the global context set with GlobalCommandLineHelpContext.
56 * This is not protected by a mutex, since it is only used in command-line
57 * start-up (i.e., single-threaded context), and is inherently not thread-safe.
59 * \ingroup module_commandline
61 const CommandLineHelpContext *g_globalContext = NULL;
66 * Private implementation class for CommandLineHelpContext.
68 * \ingroup module_commandline
70 class CommandLineHelpContext::Impl
73 //! Creates the implementation class and the low-level context.
74 Impl(File *file, HelpOutputFormat format, const HelpLinks *links)
75 : writerContext_(file, format, links), moduleDisplayName_("gmx"),
76 completionWriter_(NULL), bHidden_(false)
79 //! Creates an implementation class from a low-level context.
80 explicit Impl(const HelpWriterContext &writerContext)
81 : writerContext_(writerContext),
82 completionWriter_(NULL), bHidden_(false)
86 //! Wrapped lower-level context.
87 HelpWriterContext writerContext_;
88 //! Display name for the module for which help is written.
89 std::string moduleDisplayName_;
90 //! Shell completion writer (`NULL` if not doing completions).
91 ShellCompletionWriter *completionWriter_;
92 //! Whether hidden options should be shown in help output.
96 CommandLineHelpContext::CommandLineHelpContext(
97 File *file, HelpOutputFormat format, const HelpLinks *links)
98 : impl_(new Impl(file, format, links))
102 CommandLineHelpContext::CommandLineHelpContext(
103 const HelpWriterContext &writerContext)
104 : impl_(new Impl(writerContext))
108 CommandLineHelpContext::CommandLineHelpContext(
109 ShellCompletionWriter *writer)
110 : impl_(new Impl(writer->outputFile(), eHelpOutputFormat_Other, NULL))
112 impl_->completionWriter_ = writer;
115 CommandLineHelpContext::CommandLineHelpContext(
116 const CommandLineHelpContext &other)
117 : impl_(new Impl(*other.impl_))
121 CommandLineHelpContext::~CommandLineHelpContext()
125 void CommandLineHelpContext::setModuleDisplayName(const std::string &name)
127 impl_->writerContext_.setReplacement("[THISMODULE]", "[TT]" + name + "[tt]");
128 impl_->moduleDisplayName_ = name;
131 void CommandLineHelpContext::setShowHidden(bool bHidden)
133 impl_->bHidden_ = bHidden;
136 const HelpWriterContext &CommandLineHelpContext::writerContext() const
138 return impl_->writerContext_;
141 const char *CommandLineHelpContext::moduleDisplayName() const
143 return impl_->moduleDisplayName_.c_str();
146 bool CommandLineHelpContext::showHidden() const
148 return impl_->bHidden_;
151 bool CommandLineHelpContext::isCompletionExport() const
153 return impl_->completionWriter_ != NULL;
156 ShellCompletionWriter &CommandLineHelpContext::shellCompletionWriter() const
158 GMX_RELEASE_ASSERT(isCompletionExport(),
159 "Invalid call when not writing shell completions");
160 return *impl_->completionWriter_;
163 /********************************************************************
164 * GlobalCommandLineHelpContext
168 const CommandLineHelpContext *GlobalCommandLineHelpContext::get()
170 return g_globalContext;
173 GlobalCommandLineHelpContext::GlobalCommandLineHelpContext(
174 const CommandLineHelpContext &context)
176 GMX_RELEASE_ASSERT(g_globalContext == NULL,
177 "Global context set more than once");
178 g_globalContext = &context;
181 GlobalCommandLineHelpContext::~GlobalCommandLineHelpContext()
183 g_globalContext = NULL;