from flask import Flask, Response, request, render_template_string, redirect, send_from_directory
import markdown
from os import listdir, environ
+from os.path import getmtime
from markdown.extensions.toc import TocExtension
import re
import mmap
template_string = open(f"{blog_path}/templates/{self.template}", "r").read()
+ recent = get_recent(10)
+ with open(f"{blog_path}/templates/sidebar.md", "r") as f:
+ sidebar = md.convert(f.read())
+
page = render_template_string(
template_string,
title = self.title,
abstract = self.abstract,
keywords = format_keywords,
content = self.content,
- filename = self.filename
+ filename = self.filename,
+ recent = recent,
+ sidebar = sidebar
)
return Response(page, mimetype="text/html")
+def get_plaintext(file_name: str):
+ page = open(f"{blog_path}/pages/{file_name}", "r").read()
+ return re.sub(
+ r"((?<![\S ])\w*:[\S\t ]*)|((?<=\n)##* )|(\n![\S ]*(?=\n))|(\[\^\d*\])|([\S ]*\<[\S ]*\>[\S ]*)|(``*)",
+ "",
+ page)
+
+def get_metadata(file_name: str):
+ title = "Untitled post"
+ abstract = "..."
+ keywords = ["Undefined"]
+
+ with open(f"{blog_path}/pages/{file_name}", "r") as f:
+ while keywords == ["Undefined"]:
+ line = f.readline().split(":") # Split metdata into [key, value]
+ if len(line) == 2: # len != 2 when metadata block is over
+ key, value = line
+ match key:
+ case "title":
+ title = value.strip().title()
+ case "abstract":
+ abstract = value.strip()
+ case "keywords":
+ keywords = [x.strip() for x in value.split(",")]
+ else:
+ break
+
+ return title, abstract, keywords
+
+def get_recent(n):
+ modification_times = {file_name: getmtime(f"{blog_path}/pages/{file_name}") for file_name in listdir(f"{blog_path}/pages")}
+ pages = sorted(modification_times.items(), key=lambda x: x[1])[:n]
+
+ content = "<ul>"
+
+ for page in pages:
+ title, abstract, keywords = get_metadata(page[0])
+ content += f"""
+ <li>
+ <a href='/{page[0][:-3]}'><b>{title}</b></a>
+ </li>
+ """
+
+ content += "</ul>"
+
+ return content
+
@app.route("/")
def homepage():
page = Page(
)
return page.make()
+@app.route("/search")
def get_search():
- names = [re.sub('[\W_]+', '', name) for name in request.args.get("name").split()]
-
- name_string = "</em>' '<em>".join(names)
- content = f"<h1>Search '<em>{name_string}</em>'</h1><ul>"
-
- for file_name in listdir(f"{blog_path}/pages"):
- with open(f"{blog_path}/pages/{file_name}", "r") as f:
- s = mmap.mmap(f.fileno(), 0, access=mmap.ACCESS_READ)
- for name in names:
- i = s.find(str.encode(name))
- if i != -1:
- post_content = f.read()
-
- post_content = re.sub('<.*>', ' ', post_content)
- post_content = re.sub('.[^\s\d\w]', ' ', post_content)
- post_content = re.sub(' ', ' ', post_content)
-
- i = post_content.find(name)
- excerpt = "'..." + post_content[i-50:i] + "</em><b>" + post_content[i:i+len(name)] + "</b><em>" + post_content[i+len(name):i+50] + "...'"
-
- lines = post_content.split("\n")
- title = "Unamed page"
- for line in lines:
- line = line.split()
- print(line)
- if len(line) == 2 and line[0] == "title":
- title = line[1].strip().title()
- elif len(line) == 2: pass
- else: break
-
- content += f"<li><a href='/{file_name[:-3]}'>{title}</a> - <em>{excerpt}</em></li>"
- break
-
- content += "</ul>"
+ search = request.args.get("name")
+
+ results = 0
+ content = f"<h1>Search '<em>{search}</em>'</h1><ul>"
+
+ if search != "":
+ for file_name in listdir(f"{blog_path}/pages"):
+ page = get_plaintext(file_name)
+ i = page.casefold().find(search.casefold())
+
+ if i != -1:
+ results += 1
+ content += f"""
+ <li>
+ <a href='/{file_name[:-3]}'>
+ {get_metadata(file_name)[0]}
+ </a> - <em>
+ '...
+ <b>{page[i:i+len(search)]}</b>
+ {page[i+len(search):i+50]}
+ ...'
+ </em>
+ </li>"""
+
+ if results == 0:
+ content += "</ul><p>No results found</p>"
+ else:
+ content += f"</ul><p>{results} results found</p>"
page = Page(
title = "Post search",
return redirect("/categories")
for file_name in listdir(f"{blog_path}/pages"):
- keywords = ["Undefined"]
- title = "Untitled post"
- abstract = "..."
- with open(f"{blog_path}/pages/{file_name}", "r") as f:
- while keywords == ["Undefined"]:
- line = f.readline().split(":")
- if len(line) == 2:
- key, value = line
- match key:
- case "title":
- title = value.strip().title()
- case "abstract":
- abstract = value.strip()
- case "keywords":
- keywords = [x.strip() for x in value.split(",")]
- else:
- break
+ title, abstract, keywords = get_metadata(file_name)
entry = {"title": title, "abstract": abstract, "path": f"/{file_name[:-3]}"}
for key in keywords:
if key in index:
index[key] += [entry]
- elif key == name or name is None:
+
+ elif name is None:
+ index.update({key: [entry]})
+
+ elif key.lower() == name.lower():
index.update({key: [entry]})
content = ""
for c in index:
- content += f"<h1>{c}</h1><ul>"
+ content += f"<h1>{c
.title()}</h1><ul>"
for post in index[c]:
- content += f"<li><a href='{post['path']}'>{post['title']}</a> - <em>{abstract}</em></li>"
+ content += f"<li><a href='{post['path']}'>{post['title']}</a> - <em>{post['abstract']}</em></li>"
content += "</ul>"
With the power of technology, the Bayeux tapestry is now avaiable for the blind.
-<!-- <audio src="blog.ozva.co.uk/static/bayeux.wav" controls /> -->
+<audio src="blog.ozva.co.uk/bayeux/bayeux.wav" controls />
In this post I'll show you how this was achived.
```
for (i, pixel) in enumerate(line):
- value = np.mean(pixel) # Get the brightness
- if value < THRESHHOLD:
- front_index = i # Set the index of our in-point
- break
+ value = np.mean(pixel) # Get the brightness
+ if value < THRESHHOLD:
+ front_index = i # Set the index of our in-point
+ break
```
As you can see, by scrolling our way across each line and noting where the pixel value is greater than our threshold (set at 225), we can figure out the bounds of that particular line of the tapestry.
```
high_point = data[1500]
for i in range(0, len(data), 1500):
- data[i] -= high_point
+ data[i] -= high_point
```
If we split the image in half and process seperately, we can then combine them over the right and left audio channels to get a more resolute image.
-[^1]: Link: <a href="https://en.wikipedia.org/wiki/File:Tapisserie_de_Bayeux_31109.jpg">https://en.wikipedia.org/wiki/File:Tapisserie_de_Bayeux_31109.jpg</a>
+[^1]: Link: <https://en.wikipedia.org/wiki/File:Tapisserie_de_Bayeux_31109.jpg>
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