def inside_entities(i):

return any(map(lambda e:

e['offset'] <= i < e['offset']+e['length'],

entities))

# Split string into char sequence and escape in-place to

# preserve index positions.

seq = list(map(lambda c, i: escape_map[c] if c in escape_map and not inside_entities(

i) else c, list(text), range(len(text)))) # escape special characters

# Ensure smaller offsets come first

sorted_entities = sorted(entities, key=lambda e: e['offset'])

offset = 0

result = ''

for e in sorted_entities:

f, n, t = e['offset'], e['length'], e['type']

result += ''.join(seq[offset:f])

if t in format_map:

# apply format

result += format_map[t](''.join(seq[f:f+n]), e)

else:

result += ''.join(seq[f:f+n])

offset = f + n

result += ''.join(seq[offset:])

"""

escapes = {'*': '\\*', '_': '\\_', '[': '\\[', '`': '\\`'}

formatters = {'bold': lambda s, e: f'*{s}*', 'italic': lambda s, e: f'_{s}_', 'text_link': lambda s,

e: f'[{s}](' + e['url'] + ')', 'text_mention': lambda s, e: f'[{s}](tg://user?id=' + str(e['user']['id']) + ')', 'code': lambda s, e: f'`{s}`', 'pre': lambda s, e: '```text\n' + s + '```'}

"""

escapes = {'<': '&lt;', '>': '&gt;', '&': '&amp;'}

formatters = {'bold': lambda s, e: f'<b>{s}</b>', 'italic': lambda s, e: f'<i>{s}</i>', 'text_link': lambda s, e: '<a href="' +

e['url'] + '">' + s + '</a>', 'text_mention': lambda s, e: '<a href="tg://user?id=' + str(e['user']['id']) + '">' + s + '</a>', 'code': lambda s, e: f'<code>{s}</code>', 'pre': lambda s, e: f'<pre>{s}</pre>'}