slidoc.py 文件源码

def extract_slides(src_path, web_path):
    # Extract text for individual slides from Markdown file
    # Return (md_defaults, md_slides, new_image_number)
    try:
        with open(src_path) as f:
            source = f.read()
    except Exception, excp:
        raise Exception('Error in reading module source text %s: %s' % (src_path, excp))

    try:
        with open(web_path) as f:
            sessionIndex = read_index(f, path=web_path)
            sessionIndexParams = sessionIndex[0][-1]
    except Exception, excp:
        raise Exception('Error in reading module published HTML %s: %s' % (web_path, excp))

    md_source = preprocess(source).strip()
    if sliauth.digest_hex(md_source) != sessionIndexParams['md_digest']:
        raise Exception('Digest mismatch src=%s vs. web=%s; may need to re-publish HTML file %s by previewing all slides and saving' % (sliauth.digest_hex(md_source), sessionIndexParams['md_digest'], web_path))
    md_slides = []

    base = len(sessionIndexParams['md_defaults'])
    offset = 0
    for count in sessionIndexParams['md_breaks']:
        md_slides.append(md_source[base+offset:base+count])
        offset = count
    return (sessionIndexParams['md_defaults'], md_slides, sessionIndexParams['new_image_number'])