make rules in html linkable

1 files changed, 44 insertions, 0 deletions

diff --git a/scripts/prepare_html_rules.py b/scripts/prepare_html_rules.py
new file mode 100755
index 00000000..4d533bec
--- /dev/null
+++ b/scripts/prepare_html_rules.py
@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# TODO: support nested lists
+
+import sys
+import re
+
+def add_ids(ol):
+    """add ids to all li"""
+    id = ""
+    for s in ol.previous_siblings:
+        if not s.name:
+            continue
+        if s.name.startswith("h"):
+            id = s.attrs["data-number"]
+            break
+
+    for i, li in enumerate(ol.find_all("li")):
+        li["id"] = f"{id}-{i+1}"
+        li["class"] = "rule"
+
+header_re = re.compile(r'<h\d')
+data_number_re = re.compile(r'data\-number="([^"]*)"')
+def extract_headline_nr(line: str) -> str:
+    m = data_number_re.search(line)
+    if m:
+        return m.group(1)
+    else:
+        return ""
+
+headline = ""
+i = 0
+for line in sys.stdin.readlines():
+    if header_re.match(line):
+        headline = extract_headline_nr(line)
+        h_idx = line.find('<h') + 3
+        line = line[:h_idx] + ' class="rule"' + line[h_idx:]
+    if '<ol' in line and headline:
+        i = 1
+    if '<li' in line and i:
+        line = line.replace('<li', f'<li id="{headline}-{i}" class="rule"')
+        i = i + 1
+    if '</ol' in line:
+        i = 0
+    print(line, end="")