Diff: command_decoder.cpp

Revision:

1:b8d65b5745d1

Parent:

0:e69a0b7f4b41

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/command_decoder.cpp	Fri May 05 20:01:41 2017 +0000
@@ -0,0 +1,87 @@
+#include "string.h"
+#include "command_decoder.h"
+
+struct Keyword asKeywordList[MAX_KEYWORD_NR]=
+	{
+		{CALLIB, "callib"},
+		{GOTO, "goto"},
+		{STEP, "step"},
+		{ID, "id"}
+	};
+struct Token asToken[MAX_TOKEN_NR];
+
+unsigned char ucTokenNr;
+	
+unsigned char ucFindTokensInString(char *pcString){
+	
+	enum LedState { TOKEN, DELIMITER};
+	enum LedState eState = DELIMITER;
+	
+	unsigned char ucLicznikTokenu = 0;
+	unsigned char ucLicznikZnaku = 0;
+	char cAktualnyZnak;
+	
+	for(ucLicznikZnaku=0; pcString[ucLicznikZnaku] != NULL; ucLicznikZnaku++){
+		cAktualnyZnak = pcString[ucLicznikZnaku];
+		switch(eState){
+			case DELIMITER: 	
+				if(cAktualnyZnak == DELIMITER_CHAR){
+					eState = DELIMITER;
+				}else if(ucLicznikTokenu < MAX_TOKEN_NR){
+					eState = TOKEN;
+					asToken[ucLicznikTokenu].uValue.pcString = pcString + ucLicznikZnaku; 
+					ucLicznikTokenu++;
+				}else{
+					return(ucLicznikTokenu);
+				}
+				break;
+			case TOKEN: 
+				if(cAktualnyZnak!= DELIMITER_CHAR){
+					eState = TOKEN;
+				}else{
+					eState = DELIMITER;
+				}
+				break;
+		}	
+	}
+	return(ucLicznikTokenu);
+}
+
+enum Result eStringToKeyword(char pcStr[], enum KeywordCode *peKeywordCode){
+	
+	unsigned char ucKeywordIndex;
+	
+	for(ucKeywordIndex=0; ucKeywordIndex < MAX_KEYWORD_NR; ucKeywordIndex++){
+		if(eCompareString(pcStr, asKeywordList[ucKeywordIndex].cString) == EQUAL){
+			*peKeywordCode = asKeywordList[ucKeywordIndex].eCode;
+			return(OK);
+		}
+	}
+	return(ERROR);
+}
+
+void DecodeTokens(void){
+	
+	unsigned int uiNumber;
+	unsigned char ucTokenIndex;
+	enum KeywordCode eKeyword;
+	
+	for(ucTokenIndex=0; ucTokenIndex < ucTokenNr; ucTokenIndex++){
+		if((eStringToKeyword (asToken[ucTokenIndex].uValue.pcString, &eKeyword))== OK){
+			asToken[ucTokenIndex].eType = KEYWORD;
+			asToken[ucTokenIndex].uValue.eKeyword=eKeyword;
+		}else if((eHexStringToUInt(asToken[ucTokenIndex].uValue.pcString,&uiNumber))== OK){
+			asToken[ucTokenIndex].eType = NUMBER;
+			asToken[ucTokenIndex].uValue.uiNumber = uiNumber;		
+		}else{
+			asToken[ucTokenIndex].eType = STRING;
+		}
+	}
+}
+
+void DecodeMsg(char *pcString){
+
+	ucTokenNr = ucFindTokensInString (pcString);
+	ReplaceCharactersInString(pcString,' ',NULL);
+	DecodeTokens();
+}