taskwarrior/src/DOM.cpp
Paul Beckingham 4f0276c062 DOM
- Implemented lookup for <id>.<attr> and <uuid>.<attr>.
2011-08-25 22:19:25 -04:00

296 lines
7.3 KiB
C++

////////////////////////////////////////////////////////////////////////////////
// taskwarrior - a command line task list manager.
//
// Copyright 2011, Paul Beckingham, Federico Hernandez.
// All rights reserved.
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software
// Foundation; either version 2 of the License, or (at your option) any later
// version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
// details.
//
// You should have received a copy of the GNU General Public License along with
// this program; if not, write to the
//
// Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor,
// Boston, MA
// 02110-1301
// USA
//
////////////////////////////////////////////////////////////////////////////////
#define L10N // Localization complete.
#include <sstream>
#include <Context.h>
#include <Nibbler.h>
#include <text.h>
#include <i18n.h>
#include <DOM.h>
#include <cmake.h>
#ifdef HAVE_LIBLUA
extern "C"
{
#include <lua.h>
}
#endif
extern Context context;
////////////////////////////////////////////////////////////////////////////////
DOM::DOM ()
{
}
////////////////////////////////////////////////////////////////////////////////
DOM::~DOM ()
{
}
////////////////////////////////////////////////////////////////////////////////
const std::vector <std::string> DOM::get_references () const
{
std::vector <std::string> refs;
refs.push_back ("context.program");
refs.push_back ("context.args");
refs.push_back ("context.width");
refs.push_back ("context.height");
refs.push_back ("system.version");
refs.push_back ("system.lua.version");
refs.push_back ("system.os");
return refs;
}
////////////////////////////////////////////////////////////////////////////////
// DOM Supported References:
// rc.<name>
//
// context.program
// context.args
// context.width
// context.height
//
// TODO stats.<name> <-- context.stats
//
// system.version
// system.lua.version
// system.os
const std::string DOM::get (const std::string& name)
{
// Cache test.
/*
std::map <std::string, std::string>::iterator hit = _cache.find (name);
if (hit != _cache.end ())
return hit->second;
*/
int len = name.length ();
Nibbler n (name);
// rc. --> context.config
if (len > 3 &&
name.substr (0, 3) == "rc.")
{
return /*_cache[name] =*/ context.config.get (name.substr (3));
}
// context.*
else if (len > 8 &&
name.substr (0, 8) == "context.")
{
if (name == "context.program")
return /*_cache[name] =*/ context.a3[0]._raw;
else if (name == "context.args")
{
return /*_cache[name] =*/ context.a3.combine ();
}
else if (name == "context.width")
{
std::stringstream s;
s << context.terminal_width;
return /*_cache[name] =*/ s.str ();
}
else if (name == "context.height")
{
std::stringstream s;
s << context.terminal_height;
return /*_cache[name] =*/ s.str ();
}
else
throw format (STRING_DOM_UNREC, name);
}
// TODO stats.<name>
// system. --> Implement locally.
else if (len > 7 &&
name.substr (0, 7) == "system.")
{
// Taskwarrior version number.
if (name == "system.version")
return /*_cache[name] =*/ VERSION;
#ifdef HAVE_LIBLUA
// Lua version number.
else if (name == "system.lua.version")
return /*_cache[name] =*/ LUA_RELEASE;
#endif
// OS type.
else if (name == "system.os")
#if defined (DARWIN)
return /*_cache[name] =*/ "Darwin";
#elif defined (SOLARIS)
return /*_cache[name] =*/ "Solaris";
#elif defined (CYGWIN)
return /*_cache[name] =*/ "Cygwin";
#elif defined (OPENBSD)
return /*_cache[name] =*/ "OpenBSD";
#elif defined (HAIKU)
return /*_cache[name] =*/ "Haiku";
#elif defined (FREEBSD)
return /*_cache[name] =*/ "FreeBSD";
#elif defined (LINUX)
return /*_cache[name] =*/ "Linux";
#else
return /*_cache[name] =*/ STRING_DOM_UNKNOWN;
#endif
else
throw format (STRING_DOM_UNREC, name);
}
// Pass-through.
return /*_cache[name] =*/ name;
}
////////////////////////////////////////////////////////////////////////////////
// DOM Supported References:
//
// TODO <id>.{entry,start,end,due,until,wait}
// TODO <id>.description
// TODO <id>.project
// TODO <id>.priority
// TODO <id>.parent
// TODO <id>.status
// TODO <id>.tags
// TODO <id>.urgency
// TODO <id>.recur
// TODO <id>.depends
//
// TODO <uuid>.{entry,start,end,due,until,wait}
// TODO <uuid>.description
// TODO <uuid>.project
// TODO <uuid>.priority
// TODO <uuid>.parent
// TODO <uuid>.status
// TODO <uuid>.tags
// TODO <uuid>.urgency
// TODO <uuid>.recur
// TODO <uuid>.depends
//
// {entry,start,end,due,until,wait}
// description
// project
// priority
// parent
// status
// tags
// urgency
// recur
// depends
//
const std::string DOM::get (const std::string& name, const Task& task)
{
// Cache test.
/*
std::map <std::string, std::string>::iterator hit = _cache.find (name);
if (hit != _cache.end ())
return hit->second;
*/
Nibbler n (name);
int id;
std::string uuid;
std::string canonical;
// <attr>
if (name == "id") return format (task.id);
else if (name == "urgency") return format (task.urgency_c (), 4, 3);
else if (A3::is_attribute (name, canonical)) return task.get (canonical);
// <id>.<name>
else if (n.getInt (id))
{
if (n.skip ('.'))
{
Task ref;
if (id == task.id)
ref = task;
else
context.tdb2.get (id, ref);
std::string attr;
n.getUntilEOS (attr);
if (attr == "id") return format (ref.id);
else if (attr == "urgency") return format (ref.urgency_c (), 4, 3);
else if (A3::is_attribute (name, canonical)) return ref.get (canonical);
}
}
// <uuid>.<name>
else if (n.getUUID (uuid))
{
if (n.skip ('.'))
{
Task ref;
if (uuid == task.get ("uuid"))
ref = task;
else
context.tdb2.get (uuid, ref);
std::string attr;
n.getUntilEOS (attr);
if (name == "id") return format (ref.id);
else if (name == "urgency") return format (ref.urgency_c (), 4, 3);
else if (A3::is_attribute (name, canonical)) return ref.get (canonical);
}
}
// Delegate to the context-free version of DOM::get.
return this->get (name);
}
// TODO Need a context-specific DOM::set. For Lua. Probably.
////////////////////////////////////////////////////////////////////////////////
void DOM::set (const std::string& name, const std::string& value)
{
int len = name.length ();
// rc. --> context.config
if (len > 3 &&
name.substr (0, 3) == "rc.")
{
context.config.set (name.substr (3), /*_cache[name] =*/ value);
}
// Unrecognized --> error.
else
throw format (STRING_DOM_CANNOT_SET, name);
}
////////////////////////////////////////////////////////////////////////////////