Function _normexpr

test/test_template.py:22–41

Normalize an Expression object's parts, collapsing multiple adjacent text blocks and removing empty text blocks. Generates a sequence of parts.

(expr)

def _normexpr(expr):
    """Normalize an Expression object's parts, collapsing multiple
    adjacent text blocks and removing empty text blocks. Generates a
    sequence of parts.
    """
    textbuf = []
    for part in expr.parts:
        if isinstance(part, str):
            textbuf.append(part)
        else:
            if textbuf:
                text = "".join(textbuf)
                if text:
                    yield text
                    textbuf = []
            yield part
    if textbuf:
        text = "".join(textbuf)
        if text:
            yield text


def _normparse(text):