Add more anchor links in lua_api.html

static/style.scss

@@ -137,11 +137,15 @@ code {
 	vertical-align: middle;
 }
 
+.header-link, .anchor {
+	text-decoration: none;
+	color: #bbb;
+	padding: 0 10px 0 0;
+}
+
 .header-link {
 	position: absolute;
 	right: 10px;
-	text-decoration: none;
-	color: #bbb;
 }
 
 .header-link:hover {

update_lua_api.py

@@ -1,5 +1,26 @@
-import markdown, urllib2, datetime
+import markdown, urllib2, datetime, re, string
+from bs4 import BeautifulSoup
 
+def get_key(index, li, title):
+	title = title.replace("  ", "-")
+	title = title.replace("  ", "-")
+	title = title.replace(" ", "-")
+	#title = re.sub(r'\([^)]*\)', '', title)
+	title = pattern.sub('', title)
+
+	if title == "":
+		return None
+
+	i = 0
+	while True:
+		key = title
+		if i > 0:
+			key = key + "_" + str(i)
+		i = i + 1
+		try:
+			existing = index[key]
+		except KeyError:
+			return key
 
 #
 # Downloading lua_api.txt
@@ -10,14 +31,12 @@ url = "https://raw.githubusercontent.com/minetest/minetest/master/doc/lua_api.tx
 text = urllib2.urlopen(url).read()
 
 
-print("Pre-processing...")
+print("Pre-generation replacements...")
 
 header = """Minetest Lua Modding API Reference 0.4.13
 ========================================="""
 text = text.replace(header, "")
 
-
-
 #
 # Generating HTML
 #
@@ -25,7 +44,7 @@ print("Generating HTML...")
 md = markdown.Markdown(extensions=['markdown.extensions.toc'])
 html = md.convert(text)
 
-print("Post-processing...")
+print("Post-generation replacements...")
 links = """<ul>
 <li>More information at <a href="http://www.minetest.net/">http://www.minetest.net/</a></li>
 <li>Developer Wiki: <a href="http://dev.minetest.net/">http://dev.minetest.net/</a></li>
@@ -39,6 +58,38 @@ links += ".<br />See <a href=\"https://github.com/minetest/minetest/blob/master/
 links += "<br />Generated using <a href=\"https://github.com/rubenwardy/minetest_modding_book/blob/gh-pages/update_lua_api.py\">a Python script</a>."
 html = html.replace("<h2 id=\"programming-in-lua\">", links + "<h2 id=\"programming-in-lua\">")
 
+print("Parsing HTML...")
+soup = BeautifulSoup(html, 'html.parser')
+
+pattern = re.compile('[\W]+')
+lis = soup.find_all("li")
+index = {}
+
+# Build index of anchors
+headings = soup.find_all({"h1", "h2", "h3", "h4", "h5", "h6"})
+for tag in headings:
+	if tag.has_attr("id"):
+		index[tag["id"]] = True
+	if tag.has_attr("name"):
+		index[tag["name"]] = True
+
+# Add anchors to <li>s containing <code>
+for li in lis:
+	code = li.find_all('code')
+	if len(code) > 0:
+		key = get_key(index, li, code[0].string)
+		if key is not None:
+			index[key] = True
+			#print("Created " + key)
+			new_tag = soup.new_tag('a', href="#" + key)
+			new_tag['class'] = "anchor"
+			new_tag['name'] = key
+			new_tag.string = "#"
+			li.insert(0, new_tag)
+
+
+html = str(soup)
+
 #
 # Writing to file
 #