Fix: indentation

1 files changed, 51 insertions, 1 deletions

diff --git a/conf.typ b/conf.typ
index 3ee5917..192d2e0 100644
--- a/conf.typ
+++ b/conf.typ
@@ -186,7 +186,6 @@
   set page(numbering: "1")
   // Отступ начала абазаца 1.25 см и выравнивание по ширине
   set par(
-    first-line-indent: 1.25cm, 
     justify: true
   )
   if settings.contents_page.enabled {
@@ -212,3 +211,54 @@
     #abstract
   ]*/
 }
+
+
+#let indent = 1cm
+#let styled = [#set text(red)].func()
+#let space = [ ].func()
+#let sequence = [].func()
+
+#let turn-on-first-line-indentation(
+  doc,
+  last-is-heading: false, // space and parbreak are ignored
+  indent-already-added: false,
+) = {
+  for (i, elem) in doc.children.enumerate() {
+    let element = elem.func()
+    if element == text {
+      let previous-elem = doc.children.at(i - 1)
+      if i == 0 or last-is-heading or previous-elem.func() == parbreak {
+        if not indent-already-added {
+          indent-already-added = true
+          h(indent)
+        }
+      }
+      elem
+    } else if element == heading {
+      indent-already-added = false
+      last-is-heading = true
+      elem
+    } else if element == space {
+      elem
+    } else if element == parbreak {
+      indent-already-added = false
+      elem
+    } else if element == sequence {
+      turn-on-first-line-indentation(
+        elem,
+        last-is-heading: last-is-heading,
+        indent-already-added: indent-already-added,
+      )
+    } else if element == styled {
+      styled(turn-on-first-line-indentation(
+        elem.child,
+        last-is-heading: last-is-heading,
+        indent-already-added: indent-already-added,
+      ), elem.styles)
+    } else {
+      indent-already-added = false
+      last-is-heading = false
+      elem
+    }
+  }
+}