add mention highlighting

bink.py

@@ -3,21 +3,22 @@ from glob import glob
 from time import time_ns
 import datetime
 import os
+from pwd import getpwuid
 import sys
-from subprocess import run, call
+from subprocess import run
 import tempfile
 from math import floor
+from re import compile
 
 home = os.path.expanduser("~/.bink")
 our_path = "/town/our/data/.bink"
 filters = []
 filters_path = os.path.expanduser("~/.binkfilters")
 max_body_length = 64_000
-
 helptext = """see https://git.tilde.town/nebula/bink for details
---help: show this message
---pipe: use stdin as post content. ex `echo "hello!" | town bink --pipe`
---dump: print all posts in a json object"""
+--help or -h: show this message
+--pipe or -p: use stdin as post content. ex `echo "hello!" | town bink --pipe`
+--dump or -d: print all posts in a json object"""
 
 try:
     os.mkdir(home)
@@ -28,6 +29,8 @@ try:
     os.mkdir(our_path)
 except FileExistsError:
     pass
+except FileNotFoundError:
+    our_path = None
 
 try:
     with open(filters_path, "r") as f:
@@ -51,16 +54,16 @@ def file_object(path, our=False):
     # output: (999, "nebula", "/home/nebula/.bink/999")
     return (int(split[-1]), split[2] if not our else "our", path)
 
+def glob_posts(path):
+    return [
+        file_object(post_path) for post_path in glob(path)
+        if os.path.isfile(post_path) and not os.path.islink(post_path)
+    ]
+
 def generate_feed(before=None, count=200):
-    posts = [
-        file_object(path) for path in glob("/home/**/.bink/*")
-        if os.path.isfile(path) and not os.path.islink(path)
-    ]
-    our = [
-        file_object(path, our=True) for path in glob(f"{our_path}/*")
-        if os.path.isfile(path) and not os.path.islink(path)
-    ]
-    posts += our
+    posts = glob_posts("/home/**/.bink/*")
+    if our_path:
+        posts += glob_posts(f"{our_path}/*")
     for post in posts.copy():
         if post[1] in filters:
             posts.remove(post)
@@ -104,11 +107,12 @@ if len(sys.argv) > 1:
 
 import urwid
 
+name_re = compile(f"(~|@)?{getpwuid(os.getuid()).pw_name}")
 footer = "[c]reate [r]efresh [q]uit | scrolling: arrows, j/k, space, page up/down, ctrl-d/ctrl-u"
-
 attrmap = [
     ("bold", "default,bold", "default"),
-    ("reverse", "standout", "default")
+    ("reverse", "standout", "default"),
+    ("highlight", "light magenta", "default")
 ]
 
 class App():
@@ -132,11 +136,24 @@ class App():
             self.walker.append(self.post_to_widget(post))
 
     def post_to_widget(self, post):
+        body = post["body"]
         time_seconds = post["time"] / 1_000_000_000
         stamp = datetime.datetime.fromtimestamp(time_seconds)
+        if name_re.search(body):
+            widget_body = []
+            index = 0
+            for match in name_re.finditer(body):
+                start, end = match.span()
+                before = body[index:start]
+                highlight = body[start:end]
+                widget_body.append(before)
+                widget_body.append(("highlight", highlight))
+                index = end
+            widget_body.append(body[index:])
+            body = widget_body
         pile = urwid.Pile([
             urwid.Text([("bold", f"~{post['user']}"), " @ ", stamp.strftime("%H:%M (%A, %B %d, %Y)")]),
-            urwid.Text(post['body']),
+            urwid.Text(body),
             urwid.Divider()
         ])
         # pile.post_time = post["time"]