Files
textmate/Frameworks/editor/src/write.cc
2013-02-08 11:20:34 +01:00

109 lines
3.6 KiB
C++

#include "write.h"
#include <text/utf8.h>
#include <text/ctype.h>
#include <oak/server.h>
namespace
{
struct write_t
{
struct request_t { int fd; std::string str; };
WATCH_LEAKS(write_t);
write_t (int fd, std::string const& str);
virtual ~write_t ();
static int handle_request (write_t::request_t const& request);
void handle_reply (int error);
private:
size_t client_key;
};
static oak::server_t<write_t>& server ()
{
static oak::server_t<write_t> instance;
return instance;
}
write_t::write_t (int fd, std::string const& str)
{
client_key = server().register_client(this);
int newFd = dup(fd);
fcntl(newFd, F_SETFD, FD_CLOEXEC);
server().send_request(client_key, (request_t){ newFd, str });
}
write_t::~write_t ()
{
server().unregister_client(client_key);
}
int write_t::handle_request (write_t::request_t const& request)
{
bool success = write(request.fd, request.str.data(), request.str.size()) == request.str.size();
close(request.fd);
return success ? 0 : errno;
}
void write_t::handle_reply (int error)
{
delete this;
}
}
namespace ng
{
static size_t count_columns (buffer_t const& buffer, index_t caret, size_t tabSize)
{
std::string const str = buffer.substr(buffer.begin(buffer.convert(caret.index).line), caret.index);
size_t len = 0;
citerate(ch, diacritics::make_range(str.data(), str.data() + str.size()))
len += *ch == '\t' ? tabSize - (len % tabSize) : (text::is_east_asian_width(*ch) ? 2 : 1);
return len + caret.carry;
}
text::range_t write_unit_to_fd (buffer_t const& buffer, range_t const& range, size_t tabSize, int fd, input::type unit, input::type fallbackUnit, input_format::type format, scope::selector_t const& scopeSelector, std::map<std::string, std::string>& variables, bool* inputWasSelection) // TODO Move write_unit_to_fd to command framework.
{
input::type actualUnit = unit == input::selection && range.empty() ? fallbackUnit : unit;
*inputWasSelection = actualUnit == input::selection;
range_t r;
switch(actualUnit)
{
case input::character: r = extend_if_empty(buffer, range, kSelectionExtendRight).last(); break;
case input::word: r = extend_if_empty(buffer, range, kSelectionExtendToWord).last(); break;
case input::line: r = extend_if_empty(buffer, range, kSelectionExtendToLineExclLF).last(); break;
case input::scope: r = select_scope(buffer, range, scopeSelector).last(); break;
case input::selection: r = range; break;
case input::entire_document: r = extend(buffer, range, kSelectionExtendToAll).last(); break;
};
if(!r.empty())
{
std::string str = "";
bool first = true;
citerate(range, dissect_columnar(buffer, r))
{
if(!first)
str += "\n";
str += format == input_format::xml ? to_xml(buffer, range->min().index, range->max().index) : buffer.substr(range->min().index, range->max().index);
first = false;
}
new write_t(fd, str);
}
close(fd);
if(r && actualUnit != input::entire_document)
{
text::pos_t const& pos = buffer.convert(r.min().index);
variables.insert(std::make_pair("TM_INPUT_START_LINE", std::to_string(pos.line + 1)));
variables.insert(std::make_pair("TM_INPUT_START_LINE_INDEX", std::to_string(pos.column)));
variables.insert(std::make_pair("TM_INPUT_START_COLUMN", std::to_string(count_columns(buffer, r.min(), tabSize) + 1)));
}
return text::range_t(buffer.convert(r.min().index), buffer.convert(r.max().index));
}
} /* ng */