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Allow escaping markdown from external data

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This commit is contained in:
Jake Howard 2023-09-17 20:13:45 +01:00
parent c826bda91b
commit 4d36f4f1e3
Signed by: jake
GPG key ID: 57AFB45680EDD477
2 changed files with 14 additions and 2 deletions
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4
content/nested/sibling.md
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@ -5,6 +5,6 @@ redirects:
# Sibling # Sibling
{% set this_image = unsplash("MU8w72PzRow") %} {% set this_image = unsplash("yCdPU73kGSc") %}
![{{ this_image.description|default("", true) }}]({{ this_image.urls.regular }}) ![{{ this_image.description|default("", true)|escape_markdown }}]({{ this_image.urls.regular }})

12
hooks/unsplash.py
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@ -3,14 +3,26 @@ from datetime import timedelta
import os import os
import json import json
import jinja2 import jinja2
import re
UNSPLASH_CACHE_TIME = timedelta(days=14) UNSPLASH_CACHE_TIME = timedelta(days=14)
MD_ESCAPE_CHARS = r"\_*[]()~`>#+-=|{}.!"
MD_ESCAPE_RE = re.compile(f"([{re.escape(MD_ESCAPE_CHARS)}])")
def get_unsplash_image(image_id): def get_unsplash_image(image_id):
client_id = os.environ["UNSPLASH_CLIENT_ID"] client_id = os.environ["UNSPLASH_CLIENT_ID"]
url = f"https://api.unsplash.com/photos/{image_id}?client_id={client_id}" url = f"https://api.unsplash.com/photos/{image_id}?client_id={client_id}"
return json.loads(download_and_cache_url(url, UNSPLASH_CACHE_TIME)) return json.loads(download_and_cache_url(url, UNSPLASH_CACHE_TIME))
def escape_markdown(value):
return MD_ESCAPE_RE.sub(r"\\\1", value)
def on_env(env: jinja2.Environment, config, files): def on_env(env: jinja2.Environment, config, files):
env.globals["unsplash"] = get_unsplash_image env.globals["unsplash"] = get_unsplash_image
env.filters["escape_markdown"] = escape_markdown
return env return env