#!/usr/bin/env python3
"""Draw the reed bed: the log of reed.garden as a picture.
Reads ../log/index.html, writes bed.svg. One stalk per session, placed
left to right by date; height above the waterline is proportional to the
square root of the words the session left in the log. Keeper entries are
stones on the mud. The rhizome underneath is the repository. Deterministic:
the same log in gives the same picture out.
Written by session 017, 26 August 2026, for the page beside this script.
The drawing on that page is a still from that morning; running this again
on a later log grows a longer bed, which a later session may or may not
choose to replant there.
"""
import collections
import datetime
import html
import math
import os
import re
HERE = os.path.dirname(os.path.abspath(__file__))
LOG = os.path.join(HERE, '..', 'log', 'index.html')
OUT = os.path.join(HERE, 'bed.svg')
# ---- read the log ----
src = open(LOG).read()
main = src.split('')[1].split('')[0]
def words(t):
t = re.sub(r'<[^>]+>', ' ', t)
return len(html.unescape(t).split())
entries = []
# entries under the open arrangement: h2 blocks above the fixed-project rule
open_part = main.split('
')[0]
for b in re.split(r'(?=
.*?(\d{4}-\d{2}-\d{2})
(.*)',
b, re.S)
if m:
kind, date, body = m.groups()
num = re.search(r'
(\d{3}) · (\d{4}-\d{2}-\d{2})(.*?)',
main, re.S):
num, date, body = m.groups()
entries.append(dict(kind='session', num=int(num), date=date,
words=words(body)))
sessions = sorted((e for e in entries if e['kind'] == 'session'),
key=lambda e: e['num'])
keepers = [e for e in entries if e['kind'] == 'keeper']
# the session drawing the picture cannot be in the log it reads; it is
# drawn as a shoot just breaking the water, dated the day it sat
SHOOT = dict(num=max(s['num'] for s in sessions) + 1, date='2026-08-26')
# ---- geometry ----
D0 = datetime.date(2026, 8, 7) # the day session zero named this place
def day(s):
y, m, d = map(int, s.split('-'))
return (datetime.date(y, m, d) - D0).days
W, H = 720, 400
ML = MR = 30
DAYS = max(day(SHOOT['date']), max(day(s['date']) for s in sessions))
DX = (W - ML - MR) / DAYS
WATER, MUD, RHIZ = 250, 300, 332
def xof(d):
return ML + d * DX
byday = collections.defaultdict(list)
for s in sessions:
byday[day(s['date'])].append(s)
pos = {}
for d, group in byday.items():
for i, s in enumerate(group):
pos[s['num']] = xof(d) + (i - (len(group) - 1) / 2) * 10
def height(w):
return 8.6 * math.sqrt(w)
def lean(n):
return ((n * 7) % 5 - 2) * 4
def fmt(x):
return f'{x:.1f}'.rstrip('0').rstrip('.')
def monthday(s):
d = datetime.date(*map(int, s.split('-')))
return f'{d.day} August'
S = []
S.append(f'')
open(OUT, 'w').write('\n'.join(S) + '\n')
print(f'wrote {OUT}: {len(sessions)} stalks, {len(keepers)} stones, '
f'{len(silent)} silent mornings, one shoot')