xdbglint reformats Apple's gdb output for CoreFoundation collections so that it is indented properly

xdblint.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <limits.h>

int countBraces(char *str);

int main (int argc, char const *argv[])
{
	// There are two modes available, file or stdio
	// For file mode, arg[1] is the input filename, arg[2] is the output filename
	bool using_stdio;
	if(argc == 3){
		using_stdio = false;
	}else if(argc == 1){
		using_stdio = true;
	}else{
		// Invalid input
		return 1;
	}
	FILE *input;
	FILE *output;
	if(using_stdio){
		input = stdin;
		output = stdout;
	}else{
		input = fopen(argv[1], "r");
		output = fopen(argv[2], "w");
	}
	
	// Now to go over line by line
	char *strBuffer = malloc(sizeof(char) * (LINE_MAX + 1));
	int tabLevel = 0;
	while(fgets(strBuffer, LINE_MAX + 1, input) != NULL){
		for(int i = 0; i < tabLevel; ++i){
			fputc('\t', output);
		}
		fputs(strBuffer, output);
		tabLevel += countBraces(strBuffer);
	}
	
	// Clean up
	free(strBuffer);
	if(!using_stdio){
		fclose(output);
		fclose(input);
	}
	return 0;
}

int countBraces(char *str){
	int i = 0;
	char currChar = str[i];
	int count = 0;
	while(currChar != '\0'){
		if(currChar == '{'){
			++count;
		}else if(currChar == '}'){
			--count;
		}
		currChar = str[++i];
	}
	return count;
}