From 92b8744bb51907c7147018d4fb44b0c56298d472 Mon Sep 17 00:00:00 2001
From: Radek Czajka <rczajka@rczajka.pl>
Date: Tue, 21 Dec 2021 13:44:24 +0100
Subject: [PATCH] Support for numeracja in HTML.

---
 src/librarian/html.py             | 16 +++++++++++++---
 src/librarian/xslt/book2html.xslt |  8 ++++++++
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/librarian/html.py b/src/librarian/html.py
index d4b9795..fddeb2f 100644
--- a/src/librarian/html.py
+++ b/src/librarian/html.py
@@ -312,6 +312,7 @@ def any_ancestor(element, test):
 
 def add_anchors(root):
     counter = 1
+    visible_counter = 1
     for element in root.iterdescendants():
         def f(e):
             return (
@@ -322,16 +323,25 @@ def add_anchors(root):
                 or e.tag == 'blockquote'
                 or e.get('id') == 'footnotes'
             )
+
+        if element.get('class') == 'numeracja':
+            try:
+                visible_counter = int(element.get('data-start'))
+            except ValueError:
+                visible_counter = 1
+
         if any_ancestor(element, f):
             continue
 
         if element.tag == 'div' and 'verse' in element.get('class', ''):
-            if counter == 1 or counter % 5 == 0:
-                add_anchor(element, "f%d" % counter, link_text=counter)
+            if visible_counter == 1 or visible_counter % 5 == 0:
+                add_anchor(element, "f%d" % counter, link_text=visible_counter)
             counter += 1
+            visible_counter += 1
         elif 'paragraph' in element.get('class', ''):
-            add_anchor(element, "f%d" % counter, link_text=counter)
+            add_anchor(element, "f%d" % counter, link_text=visible_counter)
             counter += 1
+            visible_counter += 1
 
 
 def raw_printable_text(element):
diff --git a/src/librarian/xslt/book2html.xslt b/src/librarian/xslt/book2html.xslt
index 9b77b5e..ba9dbb4 100644
--- a/src/librarian/xslt/book2html.xslt
+++ b/src/librarian/xslt/book2html.xslt
@@ -559,4 +559,12 @@
         <a name="{concat('sec', count(ancestor-or-self::*[last()-2]/preceding-sibling::*) + 1)}" />
 </xsl:template>
 
+<xsl:template match="numeracja">
+	<span class="numeracja">
+		<xsl:attribute name="data-start">
+			<xsl:value-of select="@start" />
+		</xsl:attribute>
+	</span>
+</xsl:template>
+
 </xsl:stylesheet>
-- 
2.20.1