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153 lines
3.2 KiB
153 lines
3.2 KiB
/*
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Checks if a valid Command Line is avaiable
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Copyright (C) 1998 Martin Vogt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Library General Public License as published by
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the Free Software Foundation.
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For more information look at the file COPYRIGHT in this package
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*/
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#include "parser.h"
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Parser::Parser() {
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commandLine=new CommandLine();
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parseString=new Buffer(200);
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}
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Parser::~Parser() {
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delete commandLine;
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delete parseString;
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}
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void Parser::setParseString(char* parseString){
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(this->parseString)->setData(parseString);
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// clear everything in commandline
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commandLine->clear();
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}
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void Parser::parse() {
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int commandCounter=0;
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parse(parseString->getData(),&commandCounter);
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commandLine->setCommandCount(commandCounter);
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}
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void Parser::parse(char* strStart,int* nCommand){
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char* doppelPkt;
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char* current;
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char* space;
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if (strlen(strStart) == 0) return;
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doppelPkt=strchr(strStart,':');
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if (doppelPkt == NULL) return;
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(*doppelPkt)='\0';
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commandLine->setIdentifier(*nCommand,strStart);
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strStart=++doppelPkt;
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current=strStart;
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// Now two possibilities:
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// a command with Msg : means the rest ist the value
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// a command different from Msg means: further processing
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if (strcmp("Msg",commandLine->getIdentifier(*nCommand)) == 0) {
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commandLine->setValue((*nCommand),current);
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(*nCommand)++;
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return;
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}
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// Now two possibilities:
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// a command with "Ret:" means string until the the ")" is the value
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// a command different from "Ret:" means: the string until the first space
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// ist the value
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if (strcmp("Ret",commandLine->getIdentifier(*nCommand)) == 0) {
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char* seperator;
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seperator=strchr(current,')');
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if (seperator == NULL) {
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commandLine->setValue((*nCommand),current);
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(*nCommand)++;
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return;
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} else {
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(*seperator)='\0';
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current++;
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commandLine->setValue((*nCommand),current);
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(*nCommand)++;
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seperator++;
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if (strlen(seperator) == 0) return;
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parse(++seperator,&(*nCommand));
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return;
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}
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}
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space=strchr(current,' ');
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if (space == NULL) {
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commandLine->setValue((*nCommand),current);
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(*nCommand)++;
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return;
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}
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(*space)='\0';
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commandLine->setValue((*nCommand),current);
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parse(++space,&(++(*nCommand)));
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}
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int Parser::isOK(){
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// a Commandline ist valid when it contains :
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// * 2 * (identifer/value)
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// * first identifier ist "Command"
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// * second identifier is "Msg"
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// or:
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// 3 identifier
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// first: "Command"
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// second "Ret"
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// third: "Msg"
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if (commandLine->getCommandCount() == 2){
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if (strcmp("Command",commandLine->getIdentifier(0)) != 0) return 0;
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if (strcmp("Msg",commandLine->getIdentifier(1)) != 0) return 0;
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return 1;
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}
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if (commandLine->getCommandCount() == 3){
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if (strcmp("Command",commandLine->getIdentifier(0)) != 0) return 0;
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if (strcmp("Ret",commandLine->getIdentifier(1)) != 0) return 0;
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if (strcmp("Msg",commandLine->getIdentifier(2)) != 0) return 0;
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return 1;
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}
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return 0;
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}
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CommandLine* Parser::getCommandLine(){
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return commandLine;
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}
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