meld_katex_lshort.py 文件源码

def merge_ams(amsmath, amshelp, lshort):
    for amsk, amsv in chain(amsmath.items(), amshelp.items()):
        if amsk not in lshort:
            lshort.update({amsk: amsv})
            continue
        lvdict = lshort[amsk]
        for k, v in amsv.items():
            # Can't just check ``__contains__`` here bec. some vals are None.
            if k not in lvdict or (v in lvdict[k] if is_seq(lvdict[k]) else
                                   v == lvdict[k]):
                continue
            if k not in ('name', 'meta'):
                lvdict.update({k: enlist(v, lvdict[k])})
            elif k == 'meta' and v is not None:
                if lvdict['meta'] is None:
                    lvdict['meta'] = {}
                for mk, mv in v.items():
                    if mk not in lvdict['meta']:
                        lvdict['meta'].update({mk: mv})
                    else:
                        # This doesn't run, but add concat logic if that
                        # ever changes.
                        pass
            else:
                assert v is None