erasable_chars.append('0')
erased = ''
#### dbg("fstr[0]:'%s'" % fstr[0])
#### dbg('field_index:', field._index)
#### dbg("fstr[0] in erasable_chars?", fstr[0] in erasable_chars)
erasable_chars.append('0')
erased = ''
#### dbg("fstr[0]:'%s'" % fstr[0])
#### dbg('field_index:', field._index)
#### dbg("fstr[0] in erasable_chars?", fstr[0] in erasable_chars)