CommandParser Class Reference

#include <cmdparser.h>

Collaboration diagram for CommandParser:

List of all members.

Public Member Functions
	CommandParser (Tokenizer &)
	CommandParser (std::istream &)
const std::vector< std::string > *	getErrors () const
CommandSequence *	parse ()
	~CommandParser ()
Private Member Functions
void	error (const string)
Command *	parseCommand ()
Private Attributes
std::vector< std::string >	errorList
Parser *	parser
Tokenizer *	tokenizer

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Constructor & Destructor Documentation

CommandParser::CommandParser (  std::istream &   )

Definition at line 39 of file cmdparser.cpp. References parser, and tokenizer. { tokenizer = new Tokenizer(&in); parser = new Parser(tokenizer); }

CommandParser::CommandParser (  Tokenizer &   )

Definition at line 45 of file cmdparser.cpp. References parser, and tokenizer. { tokenizer = &tok; parser = new Parser(tokenizer); }

CommandParser::~CommandParser (   )

Definition at line 51 of file cmdparser.cpp. References parser, and tokenizer. { delete parser; delete tokenizer; }

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Member Function Documentation

void CommandParser::error (  const   string  )  [private]

Definition at line 111 of file cmdparser.cpp. References errorList. Referenced by parse(), and parseCommand(). { errorList.insert(errorList.end(), errMsg); }

const vector< string > * CommandParser::getErrors (   )  const

Definition at line 105 of file cmdparser.cpp. References errorList. Referenced by HandleOpenScript(), MainWindowProc(), openScript(), CelestiaCore::runScript(), and KdeApp::slotOpenFileURL(). { return &errorList; }

CommandSequence * CommandParser::parse (   )

Definition at line 58 of file cmdparser.cpp. References error(), Tokenizer::nextToken(), parseCommand(), Tokenizer::pushBack(), and tokenizer. Referenced by HandleOpenScript(), MainWindowProc(), openScript(), CelestiaCore::runScript(), and KdeApp::slotOpenFileURL(). { CommandSequence* seq = new CommandSequence(); if (tokenizer->nextToken() != Tokenizer::TokenBeginGroup) { error("'{' expected at start of script."); delete seq; return NULL; } Tokenizer::TokenType ttype = tokenizer->nextToken(); while (ttype != Tokenizer::TokenEnd && ttype != Tokenizer::TokenEndGroup) { tokenizer->pushBack(); Command* cmd = parseCommand(); if (cmd == NULL) { for (CommandSequence::const_iterator iter = seq->begin(); iter != seq->end(); iter++) { delete *iter; } delete seq; return NULL; } else { seq->insert(seq->end(), cmd); } ttype = tokenizer->nextToken(); } if (ttype != Tokenizer::TokenEndGroup) { error("Missing '}' at end of script."); for_each(seq->begin(), seq->end(), deleteFunc<Command*>());; delete seq; return NULL; } return seq; }

Command * CommandParser::parseCommand (   )  [private]

Definition at line 138 of file cmdparser.cpp. References compareIgnoringCase(), astro::Date::day, degToRad(), distance(), error(), Quaternion< T >::getAxisAngle(), Value::getHash(), AssociativeArray::getNumber(), AssociativeArray::getString(), Tokenizer::getStringValue(), Value::getType(), AssociativeArray::getVector(), astro::Date::hour, astro::kilometersToMicroLightYears(), astro::Date::minute, astro::Date::month, Tokenizer::nextToken(), parseCoordinateSystem(), parseLabelFlags(), parseOrbitFlags(), parser, parseRenderFlags(), Parser::readValue(), astro::Date::seconds, tokenizer, Vector3< T >::x, Quaternion< float >::xrotation(), Vector3< T >::y, astro::Date::year, Quaternion< float >::yrotation(), Vector3< T >::z, and Quaternion< float >::zrotation(). Referenced by parse(). { if (tokenizer->nextToken() != Tokenizer::TokenName) { error("Invalid command name"); return NULL; } string commandName = tokenizer->getStringValue(); Value* paramListValue = parser->readValue(); if (paramListValue == NULL || paramListValue->getType() != Value::HashType) { error("Bad parameter list"); return NULL; } Hash* paramList = paramListValue->getHash(); Command* cmd = NULL; if (commandName == "wait") { double duration = 1.0; paramList->getNumber("duration", duration); cmd = new CommandWait(duration); } else if (commandName == "set") { double value = 0.0; string name; paramList->getString("name", name); if (!paramList->getNumber("value", value)) { // Some values may be specified via strings string valstr; if (paramList->getString("value", valstr)) { if (compareIgnoringCase(valstr, "fuzzypoints") == 0) value = (double) Renderer::FuzzyPointStars; else if (compareIgnoringCase(valstr, "points") == 0) value = (double) Renderer::PointStars; else if (compareIgnoringCase(valstr, "scaleddiscs") == 0) value = (double) Renderer::ScaledDiscStars; } } cmd = new CommandSet(name, value); } else if (commandName == "select") { string object; paramList->getString("object", object); cmd = new CommandSelect(object); } else if (commandName == "setframe") { string refName; paramList->getString("ref", refName); string targetName; paramList->getString("target", targetName); string coordSysName; astro::CoordinateSystem coordSys = astro::Universal; if (paramList->getString("coordsys", coordSysName)) coordSys = parseCoordinateSystem(coordSysName); cmd = new CommandSetFrame(coordSys, refName, targetName); } else if (commandName == "setsurface") { string name; paramList->getString("name", name); cmd = new CommandSetSurface(name); } else if (commandName == "goto") { double t = 1.0; paramList->getNumber("time", t); double distance = 5.0; paramList->getNumber("distance", distance); astro::CoordinateSystem upFrame = astro::ObserverLocal; string frameString; if (paramList->getString("upframe", frameString)) upFrame = parseCoordinateSystem(frameString); Vec3d up(0, 1, 0); paramList->getVector("up", up); cmd = new CommandGoto(t, distance, Vec3f((float) up.x, (float) up.y, (float) up.z), upFrame); } else if (commandName == "gotolonglat") { double t = 1.0; paramList->getNumber("time", t); double distance = 5.0; paramList->getNumber("distance", distance); Vec3d up(0, 1, 0); paramList->getVector("up", up); double longitude; paramList->getNumber("longitude", longitude); double latitude; paramList->getNumber("latitude", latitude); cmd = new CommandGotoLongLat(t, distance, (float) degToRad(longitude), (float) degToRad(latitude), Vec3f((float) up.x, (float) up.y, (float) up.z)); } else if (commandName == "gotoloc") { double t = 1.0; paramList->getNumber("time", t); Vec3d pos(0, 1, 0); if (paramList->getVector("position", pos)) { pos = pos * astro::kilometersToMicroLightYears(1.0); double xrot = 0.0; paramList->getNumber("xrot", xrot); double yrot = 0.0; paramList->getNumber("yrot", yrot); double zrot = 0.0; paramList->getNumber("zrot", zrot); zrot = degToRad(zrot); Quatf rotation = Quatf::xrotation((float) degToRad(xrot)) * Quatf::yrotation((float) degToRad(yrot)) * Quatf::zrotation((float) degToRad(zrot)); cmd = new CommandGotoLocation(t, Point3d(0.0, 0.0, 0.0) + pos, rotation); } else { std::string x, y, z; paramList->getString("x", x); paramList->getString("y", y); paramList->getString("z", z); double ow, ox, oy, oz; paramList->getNumber("ow", ow); paramList->getNumber("ox", ox); paramList->getNumber("oy", oy); paramList->getNumber("oz", oz); Quatf orientation((float)ow, (float)ox, (float)oy, (float)oz); cmd = new CommandGotoLocation(t, Point3d((double)BigFix(x), (double)BigFix(y), (double)BigFix(z)), orientation); } } else if (commandName == "seturl") { std::string url; paramList->getString("url", url); cmd = new CommandSetUrl(url); } else if (commandName == "center") { double t = 1.0; paramList->getNumber("time", t); cmd = new CommandCenter(t); } else if (commandName == "follow") { cmd = new CommandFollow(); } else if (commandName == "synchronous") { cmd = new CommandSynchronous(); } else if (commandName == "lock") { cmd = new CommandLock(); } else if (commandName == "chase") { cmd = new CommandChase(); } else if (commandName == "track") { cmd = new CommandTrack(); } else if (commandName == "cancel") { cmd = new CommandCancel(); } else if (commandName == "exit") { cmd = new CommandExit(); } else if (commandName == "print") { string text; string origin; int horig = -1; int vorig = -1; double hoff = 0; double voff = 0; double duration = 1.0e9; paramList->getString("text", text); paramList->getString("origin", origin); paramList->getNumber("duration", duration); paramList->getNumber("row", voff); paramList->getNumber("column", hoff); if (compareIgnoringCase(origin, "left") == 0) { horig = -1; vorig = 0; } else if (compareIgnoringCase(origin, "right") == 0) { horig = 1; vorig = 0; } else if (compareIgnoringCase(origin, "center") == 0) { horig = 0; vorig = 0; } else if (compareIgnoringCase(origin, "left") == 0) { horig = -1; vorig = 0; } else if (compareIgnoringCase(origin, "top") == 0) { horig = 0; vorig = 1; } else if (compareIgnoringCase(origin, "bottom") == 0) { horig = 0; vorig = -1; } else if (compareIgnoringCase(origin, "topright") == 0) { horig = 1; vorig = 1; } else if (compareIgnoringCase(origin, "topleft") == 0) { horig = -1; vorig = 1; } else if (compareIgnoringCase(origin, "bottomleft") == 0) { horig = -1; vorig = -1; } else if (compareIgnoringCase(origin, "bottomright") == 0) { horig = 1; vorig = -1; } cmd = new CommandPrint(text, horig, vorig, (int) hoff, (int) -voff, duration); } else if (commandName == "cls") { cmd = new CommandClearScreen(); } else if (commandName == "time") { double jd = 2451545; if (!paramList->getNumber("jd", jd)) { std::string utc; paramList->getString("utc", utc); astro::Date date = astro::Date(0.0); sscanf(utc.c_str(), "%d-%d-%dT%d:%d:%lf", &date.year, &date.month, &date.day, &date.hour, &date.minute, &date.seconds); jd = (double)date; } cmd = new CommandSetTime(jd); } else if (commandName == "timerate") { double rate = 1.0; paramList->getNumber("rate", rate); cmd = new CommandSetTimeRate(rate); } else if (commandName == "changedistance") { double rate = 0.0; double duration = 1.0; paramList->getNumber("rate", rate); paramList->getNumber("duration", duration); cmd = new CommandChangeDistance(duration, rate); } else if (commandName == "orbit") { double rate = 0.0; double duration = 1.0; Vec3d axis; paramList->getNumber("duration", duration); paramList->getNumber("rate", rate); paramList->getVector("axis", axis); cmd = new CommandOrbit(duration, Vec3f((float) axis.x, (float) axis.y, (float) axis.z), (float) degToRad(rate)); } else if (commandName == "rotate") { double rate = 0.0; double duration = 1.0; Vec3d axis; paramList->getNumber("duration", duration); paramList->getNumber("rate", rate); paramList->getVector("axis", axis); cmd = new CommandRotate(duration, Vec3f((float) axis.x, (float) axis.y, (float) axis.z), (float) degToRad(rate)); } else if (commandName == "move") { Vec3d velocity; double duration; paramList->getNumber("duration", duration); paramList->getVector("velocity", velocity); cmd = new CommandMove(duration, velocity * astro::kilometersToMicroLightYears(1.0)); } else if (commandName == "setposition") { Vec3d base, offset; if (paramList->getVector("base", base)) { paramList->getVector("offset", offset); cmd = new CommandSetPosition(astro::universalPosition(Point3d(offset.x, offset.y, offset.z), Point3f((float) base.x, (float) base.y, (float) base.z))); } else { std::string x, y, z; paramList->getString("x", x); paramList->getString("y", y); paramList->getString("z", z); cmd = new CommandSetPosition(UniversalCoord(BigFix(x), BigFix(y), BigFix(z))); } } else if (commandName == "setorientation") { Vec3d axis; double angle; if (paramList->getNumber("angle", angle)) { paramList->getVector("axis", axis); cmd = new CommandSetOrientation(Vec3f((float) axis.x, (float) axis.y, (float) axis.z), (float) degToRad(angle)); } else { double ow, ox, oy, oz; paramList->getNumber("ow", ow); paramList->getNumber("ox", ox); paramList->getNumber("oy", oy); paramList->getNumber("oz", oz); Quatf orientation((float)ow, (float)ox, (float)oy, (float)oz); Vec3f axis; float angle; orientation.getAxisAngle(axis, angle); cmd = new CommandSetOrientation(axis, angle); } } else if (commandName == "lookback") { cmd = new CommandLookBack(); } else if (commandName == "renderflags") { int setFlags = 0; int clearFlags = 0; string s; if (paramList->getString("set", s)) setFlags = parseRenderFlags(s); if (paramList->getString("clear", s)) clearFlags = parseRenderFlags(s); cmd = new CommandRenderFlags(setFlags, clearFlags); } else if (commandName == "labels") { int setFlags = 0; int clearFlags = 0; string s; if (paramList->getString("set", s)) setFlags = parseLabelFlags(s); if (paramList->getString("clear", s)) clearFlags = parseLabelFlags(s); cmd = new CommandLabels(setFlags, clearFlags); } else if (commandName == "orbitflags") { int setFlags = 0; int clearFlags = 0; string s; if (paramList->getString("set", s)) setFlags = parseOrbitFlags(s); if (paramList->getString("clear", s)) clearFlags = parseOrbitFlags(s); cmd = new CommandOrbitFlags(setFlags, clearFlags); } else if (commandName == "setvisibilitylimit") { double mag = 6.0; paramList->getNumber("magnitude", mag); cmd = new CommandSetVisibilityLimit(mag); } else if (commandName == "setfaintestautomag45deg") { double mag = 8.5; paramList->getNumber("magnitude", mag); cmd = new CommandSetFaintestAutoMag45deg(mag); } else if (commandName == "setambientlight") { double brightness = 0.0; paramList->getNumber("brightness", brightness); cmd = new CommandSetAmbientLight((float) brightness); } else if (commandName == "preloadtex") { string object; paramList->getString("object", object); cmd = new CommandPreloadTextures(object); } else if (commandName == "mark") { string object; paramList->getString("object", object); double size = 10.0f; paramList->getNumber("size", size); Vec3d colorv(1.0f, 0.0f, 0.0f); paramList->getVector("color", colorv); Color color((float) colorv.x, (float) colorv.y, (float) colorv.z, 0.9f); Marker::Symbol symbol = Marker::Diamond; string symbolString; if (paramList->getString("symbol", symbolString)) { if (compareIgnoringCase(symbolString, "diamond") == 0) symbol = Marker::Diamond; else if (compareIgnoringCase(symbolString, "square") == 0) symbol = Marker::Square; else if (compareIgnoringCase(symbolString, "triangle") == 0) symbol = Marker::Triangle; else if (compareIgnoringCase(symbolString, "plus") == 0) symbol = Marker::Plus; else if (compareIgnoringCase(symbolString, "x") == 0) symbol = Marker::X; } cmd = new CommandMark(object, color, (float) size, symbol); } else if (commandName == "unmark") { string object; paramList->getString("object", object); cmd = new CommandUnmark(object); } else if (commandName == "unmarkall") { cmd = new CommandUnmarkAll(); } else if (commandName == "capture") { string type, filename; paramList->getString("type", type); paramList->getString("filename", filename); cmd = new CommandCapture(type, filename); } else if (commandName == "renderpath") { GLContext::GLRenderPath glcpath = GLContext::GLPath_Basic; string path; paramList->getString("path", path); if (compareIgnoringCase(path, "basic") == 0) glcpath = GLContext::GLPath_Basic; else if (compareIgnoringCase(path, "multitexture") == 0) glcpath = GLContext::GLPath_Multitexture; else if (compareIgnoringCase(path, "vp") == 0) glcpath = GLContext::GLPath_DOT3_ARBVP; else if (compareIgnoringCase(path, "vp-nv") == 0) glcpath = GLContext::GLPath_NvCombiner_ARBVP; else if (compareIgnoringCase(path, "glsl") == 0) glcpath = GLContext::GLPath_GLSL; cmd = new CommandRenderPath(glcpath); } else { error("Unknown command name '" + commandName + "'"); cmd = NULL; } delete paramListValue; return cmd; }

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Member Data Documentation

std::vector<std::string> CommandParser::errorList [private]

Definition at line 36 of file cmdparser.h. Referenced by error(), and getErrors().

Parser* CommandParser::parser [private]

Definition at line 34 of file cmdparser.h. Referenced by CommandParser(), parseCommand(), and ~CommandParser().

Tokenizer* CommandParser::tokenizer [private]

Definition at line 35 of file cmdparser.h. Referenced by CommandParser(), parse(), parseCommand(), and ~CommandParser().

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The documentation for this class was generated from the following files:

• src/celengine/cmdparser.h
• src/celengine/cmdparser.cpp

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