Function process_combine_contexts

LightRAG/lightrag/utils.py:275–309

(hl, ll)

def process_combine_contexts(hl, ll):
    header = None
    list_hl = csv_string_to_list(hl.strip())
    list_ll = csv_string_to_list(ll.strip())

    if list_hl:
        header = list_hl[0]
        list_hl = list_hl[1:]
    if list_ll:
        header = list_ll[0]
        list_ll = list_ll[1:]
    if header is None:
        return ""

    if list_hl:
        list_hl = [",".join(item[1:]) for item in list_hl if item]
    if list_ll:
        list_ll = [",".join(item[1:]) for item in list_ll if item]

    combined_sources = []
    seen = set()

    for item in list_hl + list_ll:
        if item and item not in seen:
            combined_sources.append(item)
            seen.add(item)

    combined_sources_result = [",\t".join(header)]

    for i, item in enumerate(combined_sources, start=1):
        combined_sources_result.append(f"{i},\t{item}")

    combined_sources_result = "\n".join(combined_sources_result)

    return combined_sources_result