char*
stringBufferToString(string_buffer* buffer)
{
//this is the realloc dependent function - it does not work
// char* result = buffer->string;
//ensure that the string ends with 0
if (buffer->string_length == 0 || buffer->string[(buffer->string_length - 1)]
!= 0)
{
stringBufferAdd(0, buffer);
}
/* char* string = realloc(result, buffer->string_length);
if (string==NULL) {
free(result);
}
buffer->string=NULL;
free(buffer);
return string;*/
char* result = malloc(buffer->string_length * sizeof(char));
if (result == NULL)
{
return NULL;
}
strcpy(result, global_buffer);
buffer->string = NULL;
free(buffer);
return result;
}
// Parse the input text into an unescaped cstring, and populate item.
int
aJsonClass::parseString(aJsonObject *item, FILE* stream)
{
//we do not need to skip here since the first byte should be '\"'
int in = fgetc(stream);
if (in != '\"')
{
return EOF; // not a string!
}
item->type = aJson_String;
//allocate a buffer & track how long it is and how much we have read
string_buffer* buffer = stringBufferCreate();
if (buffer == NULL)
{
//unable to allocate the string
return EOF;
}
in = fgetc(stream);
if (in == EOF)
{
stringBufferFree(buffer);
return EOF;
}
while (in != EOF)
{
while (in != '\"' && in >= 32)
{
if (in != '\\')
{
stringBufferAdd((char) in, buffer);
}
else
{
in = fgetc(stream);
if (in == EOF)
{
stringBufferFree(buffer);
return EOF;
}
switch (in)
{
case '\\':
stringBufferAdd('\\', buffer);
break;
case '\"':
stringBufferAdd('\"', buffer);
break;
case 'b':
stringBufferAdd('\b', buffer);
break;
case 'f':
stringBufferAdd('\f', buffer);
break;
case 'n':
stringBufferAdd('\n', buffer);
break;
case 'r':
stringBufferAdd('\r', buffer);
break;
case 't':
stringBufferAdd('\t', buffer);
break;
default:
//we do not understand it so we skip it
break;
}
}
in = fgetc(stream);
if (in == EOF)
{
stringBufferFree(buffer);
return EOF;
}
}
//the string ends here
item->valuestring = stringBufferToString(buffer);
return 0;
}
//we should not be here but it is ok
return 0;
}
