C++ parseInput函数代码示例

bool ofxGuiInputField<Type>::keyPressed(ofKeyEventArgs & args){
	if(hasFocus && !bMousePressed){

		int newCursorIdx = -1;
		if(args.key >= '0' && args.key <= '9'){
			int digit = args.key - '0';
			newCursorIdx = insertKeystroke(ofToString(digit));
		}else if(args.key == '.' ){
			newCursorIdx = insertKeystroke(".");
		}else if(args.key == OF_KEY_BACKSPACE || args.key == OF_KEY_DEL){
			if(hasSelectedText()){
				input.erase(selectStartPos,selectEndPos-selectStartPos);
				newCursorIdx = selectStartPos;
				parseInput();
			}else{
				int deleteIdx = -1;
				if(args.key == OF_KEY_BACKSPACE){
					deleteIdx = selectStartPos-1;
				}else if(args.key == OF_KEY_DEL){
					deleteIdx = selectStartPos;
				}

				//erase char if valid deleteIdx
				if(deleteIdx >= 0 && deleteIdx < (int)input.size()){
					input.erase(deleteIdx,1);
					newCursorIdx = deleteIdx;
					parseInput();
				}
			}
		}else if(args.key == OF_KEY_LEFT){
			if(hasSelectedText()){
				newCursorIdx = selectStartPos;
			}else{
				newCursorIdx = selectStartPos == 0 ? 0 : selectStartPos-1;
			}
		}else if(args.key == OF_KEY_RIGHT){
			if(hasSelectedText()){
				newCursorIdx = selectEndPos;
			}else{
				newCursorIdx = selectStartPos == (int)input.size() ? (int)input.size() : selectStartPos+1;
			}
		}else if(args.key == OF_KEY_RETURN){
			leaveFocus();
		}else if((args.key >= '!' && args.key <= '~')
				 || (args.key <= 'a' && args.key >= 'Z')
				 || (args.key == ' ')){
			newCursorIdx = insertAlphabetic(ofToString((char)args.key));
		}

		if(newCursorIdx != -1){
			//set cursor
			calculateSelectionArea(newCursorIdx,newCursorIdx);
		}
		return true;
	}
	return false;
}

void interaction::takeAction() {
    int status;
    switch((status=parseInput())) {
        case QUIT:
            quit();
            break;
        case HELP:
            help();
            break;
        case ME:
            traceMe();
            break;
        case FNAME:
            traceFname();
            break;
        case IPHOST:
            traceIpHost(ipHostFname);
            break;
        case INVLD:
            invalid();
            break;
        default:
            break;
    }
}

Engine::Engine(std::string inputFileName, unsigned int baseTicks) throw (std::string) 
{
    this->baseTicks = baseTicks;

    // set parse error message
    std::stringstream parseErrorStream;
    parseErrorStream << "Was not able to parse File." << std::endl << "Please check if syntax is valid" 
        << std::endl << "Abborting ...." << std::endl;
    parseError = parseErrorStream.str();

    // Try to open File
    inputFile = new std::ifstream(inputFileName.c_str(), std::ifstream::in);
    // Check if File was opened succesfull
    if (!*inputFile) 
    {
        std::stringstream error;
        error << "Was not able to open File." << std::endl << "Please check if File exists" 
            << std::endl << "Abborting ...." << std::endl;
        throw error.str();
    }

    // Parse Input
    try 
    {
        parseInput();
    }
    catch (std::string error)
    {
        throw error;
    }
}

int main(void)
{
	char connect_param[200];
	
	sprintf(connect_param,
				"host=csl2.cs.technion.ac.il dbname=%s user=%s password=%s",
				USERNAME, USERNAME, PASSWORD);
				
	conn = PQconnectdb(connect_param);
	
	/* check to see that the backend connection was successfully made */
	if (!conn || PQstatus(conn) == CONNECTION_BAD)
	{
		fprintf(stderr, "Connection to server failed: %s\n",
		PQerrorMessage(conn));
		PQfinish(conn);
		return 1;
	}

	parseInput();
	
	/* Close the connection to the database and cleanup */
	PQfinish(conn);
	
	return 0;
}

int main()
{
    while(loop == 0)
    {
        // Gets the current working directory for the application and prints it out
        char currDir[256];
        getcwd(currDir, 255);
        fprintf(stdout, "%s\n", currDir);
        
        fgets(input, buffer, stdin);
        
        // Get a list of all the commands to be run
        cmdTok = strtok(input, &delim);
        numCmd = 1;
        while(cmdTok)
        {            
           cmdArray = realloc (cmdArray, sizeof (char*) * numCmd);
           if(cmdTok[strlen(cmdTok)-1] == '\n')
                cmdTok[strlen(cmdTok)-1] = '\0';
           cmdArray[numCmd-1] = cmdTok;
           numCmd++;            
           cmdTok = strtok(NULL, &delim);
        }
        // Run all the commands (This didn't work for me in the one loop for some reason)
        for(i = 0; i < numCmd-1; i++)
        {
            parseInput(cmdArray[i]);
        }
    }
    
    return 0;
}

void startDemon() {
  DWIFIClose();
  sleep(500);
  DWIFITCPOpenServer(80);
  RS485clearRead();
  parseInput();
}

/*** Parse a statement ***/
Node* Parser::parseStatement()
{
	if(hasTokens(2) && peekToken().getType() == T_IDENTIFIER && peekToken(2).getType() == T_ASSIGN)
		return parseAssign();
	if(hasTokens(2) && peekToken().getType() == T_IDENTIFIER && peekToken(2).getType() == T_LPAREN)
		return parseCall();
	if(hasTokens() && peekToken().getType() == T_CALL)
		return parseCall();
	if(hasTokens() && peekToken().getType() == T_CASE)
		return parseCase();
	if(hasTokens() && peekToken().getType() == T_DO)
		return parseDo();
	if(hasTokens() && peekToken().getType() == T_END)
		return parseEnd();
	if(hasTokens() && peekToken().getType() == T_EXIT)
		return parseExit();
	if(hasTokens() && peekToken().getType() == T_FOR)
		return parseFor();
	if(hasTokens() && peekToken().getType() == T_IF)
		return parseIf();
	if(hasTokens() && peekToken().getType() == T_INPUT)
		return parseInput();
	if(hasTokens() && peekToken().getType() == T_OUTPUT)
		return parseOutput();
	if(hasTokens() && peekToken().getType() == T_REPEAT)
		return parseRepeat();
	if(hasTokens() && peekToken().getType() == T_RETURN)
		return parseReturn();
	if(hasTokens(2) && peekToken(1).getType() == T_IDENTIFIER && peekToken(2).getType() == T_LBRACKET)
		return parseSliceSelectAssign();
	if(hasTokens() && peekToken().getType() == T_WHILE)
		return parseWhile();
	throw ParserSyntaxException(getToken(), "Invalid statement!");
	return 0;
}

//Read the blocks file
int readBlocksFile() {
	
	FILE* fp;
	char line[256];
	int blockIndex = 0;
	
	//if fp is null, display error
	fp = fopen("Blocks.txt", "r");
	if(fp == NULL){
		perror("[ERROR]");
		return 0;
	} else {
		//loop through each line (ignoring text at beginning) and store relevant information
		while(fgets(line, 300, fp) != NULL) {
			if(line[0] == '#' || line[0] == ' ' || line[0] == '\n'){ continue; } 
			else {
				parseInput(line, blockIndex);
				blockIndex++;
			}
		}

		fclose(fp);
		return blockIndex;
	}
}

/* Note: When a single t is given, we assume R = r
 */
int main(void)
{
    int T, input[MAX_NUM_INPUT], numInput;
    char line[MAX_LEN_LINE + 1];
    double R, r;

    scanf("%d", &T);
    gets(line);

    while(T)
    {
        gets(line);

        numInput = parseInput(line, input);

        if(numInput == 1)
        {
            R = input[0] / 4.0;
            r = R;
        }
        else
        {
            R = (double) input[0];
            r = (double) input[1];
        }
        printf("%.4lf\n", computeCircleArea(R + r)
               - computeCircleArea(R)
               - computeCircleArea(r));
        T--;
    }
    return 0;
}

void acceptInput() {

        char line[256];
        char input[256];
	char request[256];
	char response[256];

        // infinite loop
        while(1) {
                // display prompt
                fputs(">> ", stderr);
                // accept input
                fgets(line, sizeof line, stdin);
                sscanf(line, "%s", input);
                // if input is "exit"
                if(strcmp(input, "exit") == 0)
                        exit(0); // quit program
                else {
                        fprintf(stdout, "String Entered %s, Characters read : %d\n", input, strlen(line) - 1);
			parseInput(input, request);
			submitRequest(request);
			acceptResponse(response);
			parseResponse(response);
		}
        }
}

void shellLoop()
{
    char *input, *originalInput;
    TokenContainer tc;
    bool running = true;

    while(running)
    {
        printf(YELLOW "λ mini437sh-JG-DS: " NORMAL_COLOR);
        input = getInput();
        originalInput = malloc(strlen(input) + 1);
        strcpy(originalInput, input);
        tc = parseInput(input);
        if (!emptyInput(&tc))
        {
            if (exitRequested(&tc))
                running = false;
            else
            {
                running = launchCommands(&tc, originalInput);
            }
        }
        free(input);
        free(originalInput);
    }
    killChildren();
    free(tc.tokens);
}

void
ManagerFilter::buildInitialWork()
{
    // Get Params and Read Graph
    int numVertices;
    string graphFile = getArgument("n");
    parseInput(graphFile, edges, numVertices);
    this->gamma = atof(getArgument("g").c_str());
    this->minQCSize = atoi(getArgument("q").c_str());

    // Initially, all vertices ar in candExt
    Candidate start;
    for (int i = 1; i <= numVertices; i++) {
        start.candExt.insert(i);
    }

    // Remove vertices that obviously are not candidates 
    int min = (int) ceil(gamma*(minQCSize-1));
    IntSet::iterator it = start.candExt.begin();
    while (it != start.candExt.end()) {
        IntSet::iterator aux = it;
        it++;
        if (edges[*aux].size() < min) {
            start.candExt.erase(aux);
        }
    }

    // Add it as new work
    workQueue.push(start);
}

void searchInput(const char *flastok, const char *fhit)
{
	MFILE *mfbuf=mfopen();
	const char *input, *ta, *hit, *select, *end, *test;

	hit=flastok;
	do{
		input=strstr(hit, "<input");
		ta=strstr(hit, "<textarea");
		select=strstr(hit, "<select");
		hit=(char*)0x8FFFFFFF;
		if(input!=NULL && input<hit) hit=input;
		if(ta!=NULL && ta<hit) hit=ta;
		if(select!=NULL && select < hit) hit=select;
		if(hit!=(char*)0x8FFFFFFF && hit<fhit){
			end=strchr(hit, '>');
			test=strchr(hit+1, '<');
			if(test!=NULL && test<end) end=strchr(end+1, '>');
			mfSetLength(mfbuf, 0);
			mfwrite((void*)hit+1, 1, end-hit-1, mfbuf);
			printf("Input: %s\n", mfGetData(mfbuf));
			parseInput(mfGetData(mfbuf));
			hit++;
		}
	}while(hit!=(char*)0x8FFFFFFF && hit<fhit);

	mfclose(mfbuf);
}

SodController::SodController(QWidget* parent)
  : QWidget(parent)
{
  input = new CLineEdit(this);
  output = new QPlainTextEdit(this);

  commandPos = 0;
  historySize = 300;
  connect(input, SIGNAL(returnPressed()), this, SLOT(parseInput()) );
  connect(input, SIGNAL(arrowPressed(bool)), this, SLOT(repeatCommand(bool)) );

  QVBoxLayout* mainBox = new QVBoxLayout(this);
  mainBox->addWidget(output);
  mainBox->addWidget(input);

  // and the set of general functions
  general_functions["read_distances"] = &SodController::read_distances;
  general_functions["read_positions"] = &SodController::read_positions;
  general_functions["read_annotation"] = &SodController::read_annotation;
  general_functions["shrink_dims"] = &SodController::shrink_dims;
  general_functions["set_plot_par"] = &SodController::set_plot_par;
  general_functions["titrate"] = &SodController::titrate;
  general_functions["gaussian_bg"] = &SodController::make_gaussian_background;
  general_functions["export_points"] = &SodController::export_points;
  general_functions["export_positions"] = &SodController::export_positions;
  general_functions["postscript"] = &SodController::postscript;
  general_functions["draw_grid"] = &SodController::drawGrid;
}

progC::progC(std::ifstream& infile){
    

    //infile.open("file1");
	parseInput(infile);
    
}