add _extensions

_extensions/drwater/text-align/_extension.yml

@@ -0,0 +1,7 @@
+title: Right or Center Align Text
+author: Tom Ben
+version: 1.0.0
+quarto-required: ">=1.5.0"
+contributes:
+  filters:
+    - text-align.lua

_extensions/drwater/text-align/text-align.lua

@@ -0,0 +1,46 @@
+--- Align the content of a div (right/center)
+
+--- Copyright: © 2025–Present Tom Ben
+--- License: MIT License
+
+local function wrap_with(blocks, format, start, finish)
+    local content = {}
+    table.insert(content, pandoc.RawBlock(format, start))
+    for _, block in ipairs(blocks) do
+        table.insert(content, block)
+    end
+    table.insert(content, pandoc.RawBlock(format, finish))
+    return content
+end
+
+local function align_block(el, align)
+    if FORMAT == "docx" then
+        if align == "right" then
+            el.attributes['custom-style'] = 'Right Align'
+        else
+            el.attributes['custom-style'] = 'Center Align'
+        end
+        return el
+    elseif FORMAT == "latex" then
+        if align == "right" then
+            return wrap_with(el.content, "latex", "\\begin{flushright}", "\\end{flushright}")
+        else
+            return wrap_with(el.content, "latex", "\\begin{center}", "\\end{center}")
+        end
+    elseif FORMAT == "typst" then
+        return wrap_with(el.content, "typst", "#align(" .. align .. ")[", "]")
+    elseif FORMAT == "html" or FORMAT == "epub" then
+        el.attributes['style'] = "text-align: " .. align .. ";"
+        return el
+    else
+        return el
+    end
+end
+
+function Div(el)
+    if el.classes:includes("right") then
+        return align_block(el, "right")
+    elseif el.classes:includes("center") then
+        return align_block(el, "center")
+    end
+end