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#!/usr/bin/env python3
import pygments
from pygments.formatters import HtmlFormatter
from pygments.lexers import get_lexer_for_filename
from pygments.lexers.special import TextLexer
from pygments.util import ClassNotFound
from starlette.applications import Starlette
from starlette.responses import HTMLResponse
from starlette.routing import Route
formatter = None
async def startup_task():
get_lexer_for_filename('x.txt')
global formatter
formatter = HtmlFormatter(style='pastie', nobackground=True)
async def run_highlight(request):
data = await request.body()
try:
lexer = get_lexer_for_filename(request.query_params['filename'], data)
except ClassNotFound:
lexer = TextLexer()
return HTMLResponse(''.join([
f'<!-- Pygments {pygments.__version__}: {lexer.name} ({lexer.__class__.__name__}) -->',
'<style>', formatter.get_style_defs('.highlight'), '</style>',
pygments.highlight(data, lexer, formatter)
]))
app = Starlette(
routes=[
Route('/highlight', run_highlight, methods=["POST"]),
],
on_startup=[startup_task],
)
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