reveal.js HTML slides markdown importer for Leo

read_reveal_md.py

# reveal.js markdown uses two blank lines to separate stacked slides
# and three to separate side by side slides.  This snippet reads
# such markdown into the appropriate tree layout in the Leo
# editor (http://leoeditor.com/)

lines = p.b.strip().split('\n')
while lines[0][0] == '@':
    del lines[0]
    
nd = p.insertAfter()
nd.h = "@clean %s" % p.h.split(None, 1)[1]
nd.b = "@others"
top = nd.copy()

blanks = -1
for line in lines:
    line = line.rstrip()
    if not line:
        blanks += 1
        continue
    if blanks == 1:
        nd.b += '\n'
    if blanks in (2, -1):
        if nd == top:
            nd = top.insertAsLastChild()
        else:
            nd = nd.insertAfter()
        if blanks == -1:  # first time exception
            top = nd.copy()
        nd.h = line.split(None, 1)[1]
    if blanks == 3:
        nd = top.insertAfter()
        top = nd.copy()
        nd.h = line.split(None, 1)[1]
    blanks = 0
    nd.b += "%s\n" % line
c.redraw()

space_reveal_js.py

# this does the opposite of read_reveal_md.py, adding two or three
# blanks at the end of nodes to reflect slide layout from reveal.js's
# point of view

while not p.h[:5] in ('@edit', '@clea') and p.parent():
    p = p.parent()

for nd in p.children_iter():
    if nd.hasChildren():
        nd.b = nd.b.strip()+'\n\n\n'
        for child in nd.children():
            child.b = child.b.strip()+'\n\n\n'
        child = nd.lastChild()
        child.b = child.b.strip()+'\n\n\n\n'
        
    else:
        nd.b = nd.b.strip()+'\n\n\n\n'
nd = p.lastChild()
nd.b = nd.b.strip()