From 39f7ac4cb5e436820a2023761aaf4ef8a43a5054 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Sun, 9 Aug 2015 15:03:00 +0200
Subject: Add support for DOCTYPE declaration

---
 genx.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 genx.h | 13 +++++++++++++
 2 files changed, 65 insertions(+)

diff --git a/genx.c b/genx.c
index 3b2f905..9848a63 100644
--- a/genx.c
+++ b/genx.c
@@ -2143,6 +2143,58 @@ genxStatus genxXmlDeclaration(genxWriter w,
   return GENX_SUCCESS;
 }
 
+genxStatus genxDoctypeDeclaration(genxWriter w,
+                                  constUtf8 re,
+                                  constUtf8 pi,
+                                  constUtf8 si,
+                                  constUtf8 is)
+{
+  if (w->sequence != SEQUENCE_PRE_DOC)
+    return w->status = GENX_SEQUENCE_ERROR;
+
+  if ((w->status = genxCheckText(w, re)) != GENX_SUCCESS)
+    return w->status;
+
+  if (pi != NULL && (w->status = genxCheckText(w, pi)) != GENX_SUCCESS)
+    return w->status;
+
+  if (si != NULL && (w->status = genxCheckText(w, si)) != GENX_SUCCESS)
+    return w->status;
+
+  if (is != NULL && (w->status = genxCheckText(w, is)) != GENX_SUCCESS)
+    return w->status;
+
+  SendCheck (w, "<!DOCTYPE ");
+  SendCheck (w, re);
+
+  if (pi != NULL)
+  {
+    SendCheck (w, " PUBLIC\n  \"");
+    SendCheck (w, pi);
+    SendCheck (w, "\"");
+  }
+
+  if (si != NULL)
+  {
+    if (pi == NULL)
+      SendCheck (w, " SYSTEM");
+
+    SendCheck (w, "\n  \"");
+    SendCheck (w, si);
+    SendCheck (w, "\"");
+  }
+
+  if (is != NULL)
+  {
+    SendCheck (w, " [\n");
+    SendCheck (w, is);
+    SendCheck (w, "\n]");
+  }
+
+  SendCheck (w, ">\n");
+  return GENX_SUCCESS;
+}
+
 genxStatus genxComment(genxWriter w, constUtf8 text)
 {
   size_t i;
diff --git a/genx.h b/genx.h
index bdaeee1..e55b467 100644
--- a/genx.h
+++ b/genx.h
@@ -205,6 +205,19 @@ genxStatus genxXmlDeclaration(genxWriter w,
                               constUtf8 encoding,
                               constUtf8 standalone);
 /*
+ * Write DOCTYPE declaration. If public_id is not NULL, then this is
+ * a PUBLIC DOCTYPE declaration, otherwise, if system_id is not NULL,
+ * then this is a SYSTEM DOCTYPE. If both are NULL, then a DOCTYPE
+ * that only contains the root element and, if not NULL, internal
+ * subset is written.
+ */
+genxStatus genxDoctypeDeclaration(genxWriter w,
+                                  constUtf8 root_element,
+                                  constUtf8 public_id,
+                                  constUtf8 system_id,
+                                  constUtf8 internal_subset);
+
+/*
  * Write a comment
  */
 genxStatus genxComment(genxWriter w, constUtf8 text);
-- 
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