Function is_empty_all

libraries/hoedown/src/document.c:330–336

is_empty_all: verify that all the data is spacing */

/* is_empty_all: verify that all the data is spacing */
static int
is_empty_all(const uint8_t *data, size_t size)
{
    size_t i = 0;
    while (i < size && _isspace(data[i])) i++;
    return i == size;
}

/*
 * Replace all spacing characters in data with spaces. As a special