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import argparse
from urllib.parse import urlparse
import webbrowser
import database
import getpass
import app
import re
import os
HEADER_INCREMENTER = 1
IMAGE_TYPES = [".png", ".jpg"]
def get_thought_from_id(db, id_):
category_name, title, dt, markdown = db.get_thought(id_)
return category_name, title, dt, parse_text(markdown)
def parse_file(path):
with open(path, "r") as f:
unformatted = f.read()
return parse_text(unformatted)
def parse_text(unformatted):
formatted = parse_headers(unformatted)
formatted = parse_asteriscs(formatted)
formatted = parse_links(formatted)
formatted = parse_code(formatted)
formatted = parse_lists(formatted)
formatted = add_linebreaks(formatted)
return '{% extends "template.html" %}\n{% block content %}\n' + formatted + '\n{% endblock %}'
def parse_headers(test_str):
regex = r"^#{1,5}\s\w.*$"
matches = re.finditer(regex, test_str, re.MULTILINE)
offset = 0
for match in matches:
# work out if its h2, h3 etc. from the number of #s
headerNo = len(match.group().split(" ")[0]) + HEADER_INCREMENTER
replacement = "<h%i>%s</h%i>" % (headerNo, " ".join(match.group().split(" ")[1:]), headerNo)
#don't use .replace() in the unlikely case the the regex hit appears in a block
test_str = test_str[:match.start()+offset] + replacement + test_str[match.end()+offset:]
#replacing the hits fucks up the indexes, accommodate for this
offset += (len(replacement) - (match.end() - match.start()))
return test_str
def parse_asteriscs(test_str):
regex = r"(?<!\\)\*{1,3}.*?\*{1,3}"
matches = re.finditer(regex, test_str, re.MULTILINE)
offset = 0
for match in matches:
if len(re.findall(r"\*{1,3}.*?\\\*{1,3}", match.group())) == 0: #need to find a way of doing this with regexes
if match.group().startswith(re.findall(r"\w\*{1,3}", match.group())[0][1:]): #this too
if match.group().startswith("***"):
replacement = "<b><i>%s</i></b>" % (match.group()[3:-3])
elif match.group().startswith("**"):
replacement = "<b>%s</b>" % (match.group()[2:-2])
else:
replacement = "<i>%s</i>" % (match.group()[1:-1])
test_str = test_str[:match.start()+offset] + replacement + test_str[match.end()+offset:]
offset += (len(replacement) - (match.end() - match.start()))
return test_str
def parse_links(test_str):
regex = r"(?<!\\)\[.*?\]\(http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+\)"
matches = re.finditer(regex, test_str, re.MULTILINE)
offset = 0
for match in matches:
s = match.group().split("(")
label = s[0][1:-1]
url = s[1][:-1]
if os.path.splitext(urlparse(url).path)[1] in IMAGE_TYPES:
replacement = "<img alt='%s' src=%s>" % (label, url)
else:
replacement = "<a href=%s>%s</a>" % (url, label)
test_str = test_str[:match.start()+offset] + replacement + test_str[match.end()+offset:]
offset += (len(replacement) - (match.end() - match.start()))
return test_str
def parse_code(test_str):
regex = r"(?<!\\)`\w{1,}?`"
# this only matches single words, but escaping is less complicated
matches = re.finditer(regex, test_str, re.MULTILINE)
offset = 0
for match in matches:
replacement = "<em class=inlineCode style='font-family: monospace;font-style: normal;'>%s</em>" % match.group()[1:-1]
test_str = test_str[:match.start()+offset] + replacement + test_str[match.end()+offset:]
offset += (len(replacement) - (match.end() - match.start()))
out = ""
inBlock = 0
for line in test_str.split("\n"):
if line == "```":
if inBlock % 2 == 0:
out += "<p class=codeBlock style='font-family: monospace;font-style: normal;white-space: pre-wrap;'>\n"
else:
out += "</p>\n"
inBlock += 1
else:
out += line + "\n"
return out
def parse_lists(test_str):
regex = r"^[1-9][.)] .*$|- .*$"
matches = re.finditer(regex, test_str, re.MULTILINE)
offset = 0
theFirstOne = True
for match in matches:
if theFirstOne:
if match.group()[0].isdigit():
listType = "ol"
cutoff = 3
else:
listType = "ul"
cutoff = 2
replacement = "<%s>\n<li>%s</li>" % (listType, match.group()[cutoff:])
theFirstOne = False
else:
if re.match(regex, [i for i in test_str[match.end()+offset:].split("\n") if i != ''][0]) is None:
theFirstOne = True
replacement = "<li>%s</li>\n</%s>" % (match.group()[cutoff:], listType)
else:
replacement = "<li>%s</li>" % match.group()[cutoff:]
test_str = test_str[:match.start()+offset] + replacement + test_str[match.end()+offset:]
offset += (len(replacement) - (match.end() - match.start()))
return test_str
def add_linebreaks(test_str):
return re.sub(r"^$", "<br><br>", test_str, 0, re.MULTILINE)
def preview_markdown(path, title, category):
def startBrowser():
webbrowser.get("firefox").open("http://localhost:5000/preview")
del os.environ["PREVIEW"]
del os.environ["PREVIEW_TITLE"]
del os.environ["CATEGORY"]
os.environ["PREVIEW"] = parse_file(path)
os.environ["PREVIEW_TITLE"] = title
os.environ["CATEGORY"] = category
import threading
threading.Timer(1.25, startBrowser ).start()
app.app.run(host = "0.0.0.0", debug = True)
def main():
p = argparse.ArgumentParser()
p.add_argument(
"markdown",
help = "Path to a markdown file",
type = str
)
p.add_argument(
"-u", "--username",
help = "Username to use for the database",
required = True,
type = str
)
p.add_argument(
"-t", "--title",
help = "Article title",
required = True,
type = str
)
p.add_argument(
"-c", "--category",
help = "Article category",
required = True,
type = str
)
g = p.add_mutually_exclusive_group(required = True)
g.add_argument(
"-p", "--preview",
help = "Preview markdown rendering",
action='store_true'
)
g.add_argument(
"-s", "--save",
help = "Save markdown to database",
action='store_true'
)
g.add_argument(
"-e", "--echo",
help = "Print parsed markdown to stdout",
action='store_true'
)
args = vars(p.parse_args())
passwd = getpass.getpass("Enter password for %s@%s: " % (args["username"], app.CONFIG["mysql"]["host"]))
with database.Database(
safeLogin = False,
user = args["username"],
passwd = passwd
) as db:
if args["preview"]:
preview_markdown(args["markdown"], args["title"], args["category"])
elif args["save"]:
if db.add_category(args["category"]):
print("Added category...")
with open(args["markdown"], "r") as f:
db.add_thought(args["category"], args["title"], f.read())
print("Added thought...")
else:
print(parse_file(args["markdown"]))
if __name__ == "__main__":
main()
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