json_parser

#include "Parser.h"
#include <string.h>

void parseATResponse(const char *buffer, unsigned int size, unsigned int offset, char *response)
{
  const char *twoPointsPointer = strchr(buffer, ':');
  unsigned int twoPointsIndex = (int)(twoPointsPointer - buffer);
  unsigned int valueStartIndex = twoPointsIndex + offset;
  for (unsigned int i = valueStartIndex; i < valueStartIndex + size; ++i)
  {
    response[i - valueStartIndex] = buffer[i];
    response[i - valueStartIndex + 1] = '\0';
  }
}

void parseJSONResponse(const char *buffer, unsigned int bufferSize, char *response)
{
  unsigned int start_index = 0;
  unsigned int i = 0;
  while (i < bufferSize - 1 && start_index == 0)
  {
    char c = buffer[i];
    if ('{' == c)
    {
      start_index = i;
    }
    ++i;
  }

  unsigned int end_index = 0;
  int j = bufferSize - 1;
  while (j >= 0 && end_index == 0)
  {
    char c = buffer[j];
    if ('}' == c)
    {
      end_index = j;
    }
    --j;
  }

  for (int k = 0; k < (end_index - start_index) + 2; ++k)
  {
    response[k] = buffer[start_index + k];
    response[k + 1] = '\0';
  }
}