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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. typedef struct {
  6. 	char **args; /* An array of strings*/
  7. } asmInstruction;
  8.  
  9. int countTokens(char *charLine){
  10. 	return 3;//mock
  11. }
  12.  
  13. asmInstruction *tokenizeLine(char *charLine) {
  14. 	int words = countTokens(charLine);
  15. 	char *tokens;
  16.  
  17. 	asmInstruction *instr = (asmInstruction*) malloc(sizeof(asmInstruction));
  18. 	instr->args = (char**) malloc((words+1) * sizeof(char*));//+1 for NULL, or add member E.g instr->numOfWords = words
  19.  
  20. 	int count = 0;
  21. 	tokens = strtok(charLine, " ,");
  22. 	while (tokens) {
  23. 		instr->args[count] = malloc(strlen(tokens)+1);
  24. 		strcpy(instr->args[count++], tokens);
  25. 		tokens = strtok(NULL, " ,");
  26. 	}
  27. 	instr->args[count] = NULL;
  28.  
  29. 	return instr;
  30. }
  31.  
  32. int main(void) {
  33. 	char s[] = "ldr r2,r1";
  34. 	asmInstruction *instr = tokenizeLine(s);
  35. 	//test print
  36. 	for(int i=0; instr->args[i]; ++i)
  37. 		printf("%s\n", instr->args[i]);
  38. 	//...
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 2184KB
comments (?)
stdin
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Standard input is empty
stdout
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ldr
r2
r1
https://ideone.com/QNRQNB
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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