def lexeme(parser):
    whitespace()
    v = parser()
    whitespace()
    return v
Given a lookup_type of 'year', 'month' or 'day', returns the SQL that
dataset/ETHPy150Open brehaut/picoparse/picoparse/text.py/lexeme--crossover with--dataset/ETHPy150Open cloudera/hue/desktop/core/ext-py/Django-1.6.10/django/db/backends/__init__.py/BaseDatabaseOperations.date_extract_sql