95 lines
2.2 KiB
C++
95 lines
2.2 KiB
C++
#include "buffer_manager.hh"
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#include "assert.hh"
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#include "buffer.hh"
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#include "exception.hh"
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#include "string.hh"
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namespace Kakoune
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{
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struct name_not_unique : logic_error {};
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BufferManager::~BufferManager()
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{
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// delete remaining buffers
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while (not m_buffers.empty())
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delete m_buffers.front().get();
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}
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void BufferManager::register_buffer(Buffer& buffer)
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{
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const String& name = buffer.name();
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for (auto& buf : m_buffers)
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{
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if (buf->name() == name)
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throw name_not_unique();
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}
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m_buffers.push_back(safe_ptr<Buffer>(&buffer));
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}
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void BufferManager::unregister_buffer(Buffer& buffer)
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{
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for (auto it = m_buffers.begin(); it != m_buffers.end(); ++it)
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{
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if (*it == &buffer)
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{
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m_buffers.erase(it);
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return;
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}
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}
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assert(false);
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}
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Buffer* BufferManager::get_buffer(const String& name)
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{
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for (auto& buf : m_buffers)
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{
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if (buf->name() == name)
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return buf.get();
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}
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return nullptr;
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}
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void BufferManager::set_last_used_buffer(Buffer& buffer)
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{
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auto it = m_buffers.begin();
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while (*it != &buffer and it != m_buffers.end())
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++it;
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assert(it != m_buffers.end());
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m_buffers.erase(it);
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m_buffers.emplace(m_buffers.begin(), &buffer);
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}
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CandidateList BufferManager::complete_buffername(const String& prefix,
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ByteCount cursor_pos)
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{
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String real_prefix = prefix.substr(0, cursor_pos);
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CandidateList result;
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for (auto& buffer : m_buffers)
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{
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const String& name = buffer->name();
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if (name.substr(0, real_prefix.length()) == real_prefix)
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result.push_back(escape(name));
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}
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// no prefix completion found, check regex matching
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if (result.empty())
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{
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try
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{
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Regex ex(real_prefix.begin(), real_prefix.end());
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for (auto& buffer : m_buffers)
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{
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const String& name = buffer->name();
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if (boost::regex_search(name.begin(), name.end(), ex))
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result.push_back(escape(name));
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}
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}
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catch (boost::regex_error& err) {}
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}
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return result;
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}
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}
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