mercurial/revsetlang.py

35497:3c9c05a38d78

        for s in tree[1:]:
            funcs |= funcsused(s)
        if tree[0] == 'func':
            funcs.add(tree[1][1])
        return funcs

35498:dd911f95cbda

        for s in tree[1:]:
            funcs |= funcsused(s)
        if tree[0] == 'func':
            funcs.add(tree[1][1])
        return funcs

_hashre = util.re.compile('[0-9a-fA-F]{1,40}$')

def _ishashlikesymbol(symbol):
    """returns true if the symbol looks like a hash"""
    return _hashre.match(symbol)

def gethashlikesymbols(tree):
    """returns the list of symbols of the tree that look like hashes

    >>> gethashlikesymbols(('dagrange', ('symbol', '3'), ('symbol', 'abe3ff')))
    ['3', 'abe3ff']
    >>> gethashlikesymbols(('func', ('symbol', 'precursors'), ('symbol', '.')))
    []
    >>> gethashlikesymbols(('func', ('symbol', 'precursors'), ('symbol', '34')))
    ['34']
    >>> gethashlikesymbols(('symbol', 'abe3ffZ'))
    []
    """
    if not tree:
        return []

    if tree[0] == "symbol":
        if _ishashlikesymbol(tree[1]):
            return [tree[1]]
    elif len(tree) >= 3:
        results = []
        for subtree in tree[1:]:
            results += gethashlikesymbols(subtree)
        return results
    return []