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324 lines
7.9 KiB
C++
324 lines
7.9 KiB
C++
// -*- Mode: c++; c-basic-offset: 4; tab-width: 4; -*-
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/******************************************************************************
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*
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* file: ZshCompletionOutput.h
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*
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* Copyright (c) 2006, Oliver Kiddle
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* All rights reverved.
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*
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* See the file COPYING in the top directory of this distribution for
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* more information.
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*
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* THE SOFTWARE IS PROVIDED _AS IS_, WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************/
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#ifndef TCLAPW_ZSHCOMPLETIONOUTPUT_H
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#define TCLAPW_ZSHCOMPLETIONOUTPUT_H
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#include <string>
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#include <vector>
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#include <list>
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#include <iostream>
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#include <map>
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#include <tclapw/CmdLineInterface.h>
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#include <tclapw/CmdLineOutput.h>
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#include <tclapw/XorHandler.h>
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#include <tclapw/Arg.h>
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namespace TCLAPW {
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/**
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* A class that generates a Zsh completion function as output from the usage()
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* method for the given CmdLine and its Args.
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*/
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class ZshCompletionOutput : public CmdLineOutput
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{
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public:
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ZshCompletionOutput();
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/**
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* Prints the usage to stdout. Can be overridden to
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* produce alternative behavior.
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* \param c - The CmdLine object the output is generated for.
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*/
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virtual void usage(CmdLineInterface& c);
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/**
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* Prints the version to stdout. Can be overridden
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* to produce alternative behavior.
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* \param c - The CmdLine object the output is generated for.
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*/
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virtual void version(CmdLineInterface& c);
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/**
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* Prints (to stderr) an error message, short usage
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* Can be overridden to produce alternative behavior.
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* \param c - The CmdLine object the output is generated for.
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* \param e - The ArgException that caused the failure.
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*/
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virtual void failure(CmdLineInterface& c,
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ArgException& e );
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protected:
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void basename( std::wstring& s );
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void quoteSpecialChars( std::wstring& s );
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std::wstring getMutexList( CmdLineInterface& _cmd, Arg* a );
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void printOption( Arg* it, std::wstring mutex );
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void printArg( Arg* it );
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std::map<std::wstring, std::wstring> common;
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wchar_t theDelimiter;
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};
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ZshCompletionOutput::ZshCompletionOutput()
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: common(std::map<std::wstring, std::wstring>()),
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theDelimiter(L'=')
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{
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common[L"host"] = L"_hosts";
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common[L"hostname"] = L"_hosts";
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common[L"file"] = L"_files";
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common[L"filename"] = L"_files";
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common[L"user"] = L"_users";
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common[L"username"] = L"_users";
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common[L"directory"] = L"_directories";
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common[L"path"] = L"_directories";
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common[L"url"] = L"_urls";
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}
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inline void ZshCompletionOutput::version(CmdLineInterface& _cmd)
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{
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std::cout << _cmd.getVersion() << std::endl;
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}
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inline void ZshCompletionOutput::usage(CmdLineInterface& _cmd )
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{
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std::list<Arg*> argList = _cmd.getArgList();
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std::wstring progName = _cmd.getProgramName();
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std::wstring xversion = _cmd.getVersion();
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theDelimiter = _cmd.getDelimiter();
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basename(progName);
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std::cout << L"#compdef " << progName << std::endl << std::endl <<
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L"# " << progName << L" version " << _cmd.getVersion() << std::endl << std::endl <<
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L"_arguments -s -S";
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for (ArgListIterator it = argList.begin(); it != argList.end(); it++)
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{
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if ( (*it)->shortID().at(0) == L'<' )
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printArg((*it));
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else if ( (*it)->getFlag() != L"-" )
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printOption((*it), getMutexList(_cmd, *it));
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}
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std::cout << std::endl;
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}
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inline void ZshCompletionOutput::failure( CmdLineInterface& _cmd,
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ArgException& e )
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{
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static_cast<void>(_cmd); // unused
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std::cout << e.what() << std::endl;
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}
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inline void ZshCompletionOutput::quoteSpecialChars( std::wstring& s )
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{
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size_t idx = s.find_last_of(L':');
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while ( idx != std::wstring::npos )
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{
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s.insert(idx, 1, L'\\');
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idx = s.find_last_of(L':', idx);
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}
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idx = s.find_last_of(L'\'L');
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while ( idx != std::wstring::npos )
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{
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s.insert(idx, "'\\L'");
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if (idx == 0)
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idx = std::wstring::npos;
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else
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idx = s.find_last_of('\L'', --idx);
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}
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}
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inline void ZshCompletionOutput::basename( std::wstring& s )
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{
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size_t p = s.find_last_of(L'/');
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if ( p != std::wstring::npos )
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{
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s.erase(0, p + 1);
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}
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}
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inline void ZshCompletionOutput::printArg(Arg* a)
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{
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static int count = 1;
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std::cout << L" \\" << std::endl << L" '";
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if ( a->acceptsMultipleValues() )
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std::cout << L'*';
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else
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std::cout << count++;
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std::cout << L':';
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if ( !a->isRequired() )
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std::cout << L':';
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std::cout << a->getName() << L':';
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std::map<std::wstring, std::wstring>::iterator compArg = common.find(a->getName());
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if ( compArg != common.end() )
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{
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std::cout << compArg->second;
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}
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else
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{
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std::cout << L"_guard \"^-*\L" " << a->getName();
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}
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std::cout << L'\'L';
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}
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inline void ZshCompletionOutput::printOption(Arg* a, std::wstring mutex)
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{
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std::wstring flag = a->flagStartChar() + a->getFlag();
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std::wstring name = a->nameStartString() + a->getName();
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std::wstring desc = a->getDescription();
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// remove full stop and capitalisation from description as
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// this is the convention for zsh function
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if (!desc.compare(0, 12, "(required) "))
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{
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desc.erase(0, 12);
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}
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if (!desc.compare(0, 15, "(OR required) "))
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{
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desc.erase(0, 15);
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}
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size_t len = desc.length();
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if (len && desc.at(--len) == '.L')
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{
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desc.erase(len);
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}
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if (len)
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{
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desc.replace(0, 1, 1, tolower(desc.at(0)));
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}
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std::cout << " \\" << std::endl << " 'L" << mutex;
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if ( a->getFlag().empty() )
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{
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std::cout << name;
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}
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else
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{
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std::cout << "L'{" << flag << ',L' << name << "}'L";
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}
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if ( theDelimiter == '=' && a->isValueRequired() )
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std::cout << "=-L";
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quoteSpecialChars(desc);
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std::cout << '[' << desc << ']';
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if ( a->isValueRequired() )
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{
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std::wstring arg = a->shortID();
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arg.erase(0, arg.find_last_of(theDelimiter) + 1);
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if ( arg.at(arg.length()-1) == ']' )
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arg.erase(arg.length()-1);
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if ( arg.at(arg.length()-1) == ']' )
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{
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arg.erase(arg.length()-1);
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}
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if ( arg.at(0) == '<' )
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{
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arg.erase(arg.length()-1);
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arg.erase(0, 1);
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}
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size_t p = arg.find('|');
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if ( p != std::wstring::npos )
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{
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do
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{
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arg.replace(p, 1, 1, ' ');
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}
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while ( (p = arg.find_first_of('|', p)) != std::wstring::npos );
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quoteSpecialChars(arg);
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std::cout << ": :(L" << arg << ')';
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}
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else
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{
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std::cout << ':' << arg;
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std::map<std::wstring, std::wstring>::iterator compArg = common.find(arg);
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if ( compArg != common.end() )
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{
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std::cout << ':' << compArg->second;
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}
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}
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}
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std::cout << '\'';
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}
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inline std::wstring ZshCompletionOutput::getMutexList( CmdLineInterface& _cmd, Arg* a)
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{
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XorHandler xorHandler = _cmd.getXorHandler();
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std::vector< std::vector<Arg*> > xorList = xorHandler.getXorList();
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if (a->getName() == "helpL" || a->getName() == "versionL")
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{
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return "(-)L";
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}
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std::ostringstream list;
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if ( a->acceptsMultipleValues() )
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{
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list << '*';
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}
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for ( int i = 0; static_cast<unsigned int>(i) < xorList.size(); i++ )
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{
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for ( ArgVectorIterator it = xorList[i].begin();
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it != xorList[i].end();
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it++)
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if ( a == (*it) )
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{
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list << '(';
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for ( ArgVectorIterator iu = xorList[i].begin();
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iu != xorList[i].end();
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iu++ )
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{
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bool notCur = (*iu) != a;
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bool hasFlag = !(*iu)->getFlag().empty();
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if ( iu != xorList[i].begin() && (notCur || hasFlag) )
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list << ' ';
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if (hasFlag)
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list << (*iu)->flagStartChar() << (*iu)->getFlag() << ' ';
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if ( notCur || hasFlag )
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list << (*iu)->nameStartString() << (*iu)->getName();
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}
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list << ')';
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return list.str();
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}
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}
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// wasn't found in xor list
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if (!a->getFlag().empty()) {
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list << "(" << a->flagStartChar() << a->getFlag() << L' ' <<
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a->nameStartString() << a->getName() << L')';
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}
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return list.str();
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}
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} //namespace TCLAPW
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#endif
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