From 22dcdd6d8ff39206bcb627ea6ce4de8c6c07417f Mon Sep 17 00:00:00 2001
From: Georg Baum <baum@lyx.org>
Date: Fri, 4 Jul 2014 19:55:44 +0200
Subject: [PATCH] Fix bug #9162: Missing \use_indices

The lyx2lyx conversion for format 352 was incomplete: It should have been
added the \use_indices setting, but it relied on the fact that the default in
LyX for missing \use_indices is the same as the old format without that
setting used. However, the default might change in the future, and later
lyx2lyx conversions rely on that setting as well.
---
 lib/lyx2lyx/LyX.py     |  2 ++
 lib/lyx2lyx/lyx_2_0.py | 33 +++++++++++++++++++++++++++------
 lib/lyx2lyx/lyx_2_1.py | 10 ++++++++--
 3 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/lib/lyx2lyx/LyX.py b/lib/lyx2lyx/LyX.py
index 5ee8d5f4a8..eb0b079355 100644
--- a/lib/lyx2lyx/LyX.py
+++ b/lib/lyx2lyx/LyX.py
@@ -720,6 +720,7 @@ class File(LyX_base):
         self.read()
 
 
+# FIXME: header settings are completely outdated, don't use like this
 #class NewFile(LyX_base):
 #    " This class is to create new LyX files."
 #    def set_header(self, **params):
@@ -748,6 +749,7 @@ class File(LyX_base):
 #            "\\use_amsmath 1",
 #            "\\cite_engine basic",
 #            "\\use_bibtopic false",
+#            "\\use_indices false",
 #            "\\paperorientation portrait",
 #            "\\secnumdepth 3",
 #            "\\tocdepth 3",
diff --git a/lib/lyx2lyx/lyx_2_0.py b/lib/lyx2lyx/lyx_2_0.py
index 2756418f88..7914cc4995 100644
--- a/lib/lyx2lyx/lyx_2_0.py
+++ b/lib/lyx2lyx/lyx_2_0.py
@@ -317,11 +317,33 @@ def revert_backgroundcolor(document):
         '\\pagecolor{page_backgroundcolor}'])
 
 
-def revert_splitindex(document):
-    " Reverts splitindex-aware documents "
+def add_use_indices(document):
+    " Add \\use_indices if it is missing "
     i = find_token(document.header, '\\use_indices', 0)
+    if i != -1:
+        return i
+    i = find_token(document.header, '\\use_bibtopic', 0)
+    if i == -1:
+        i = find_token(document.header, '\\cite_engine', 0)
+    if i == -1:
+        i = find_token(document.header, '\\use_mathdots', 0)
+    if i == -1:
+        i = find_token(document.header, '\\use_mhchem', 0)
+    if i == -1:
+        i = find_token(document.header, '\\use_esint', 0)
+    if i == -1:
+        i = find_token(document.header, '\\use_amsmath', 0)
     if i == -1:
         document.warning("Malformed LyX document: Missing \\use_indices.")
+        return -1
+    document.header.insert(i + 1, '\\use_indices 0')
+    return i + 1
+
+
+def revert_splitindex(document):
+    " Reverts splitindex-aware documents "
+    i = add_use_indices(document)
+    if i == -1:
         return
     useindices = str2bool(get_value(document.header, "\\use_indices", i))
     del document.header[i]
@@ -398,6 +420,7 @@ def revert_splitindex(document):
 
 def convert_splitindex(document):
     " Converts index and printindex insets to splitindex-aware format "
+    add_use_indices(document)
     i = 0
     while True:
         i = find_token(document.body, "\\begin_inset Index", i)
@@ -422,9 +445,8 @@ def convert_splitindex(document):
 
 def revert_subindex(document):
     " Reverts \\printsubindex CommandInset types "
-    i = find_token(document.header, '\\use_indices', 0)
+    i = add_use_indices(document)
     if i == -1:
-        document.warning("Malformed LyX document: Missing \\use_indices.")
         return
     useindices = str2bool(get_value(document.header, "\\use_indices", i))
     i = 0
@@ -448,9 +470,8 @@ def revert_subindex(document):
 
 def revert_printindexall(document):
     " Reverts \\print[sub]index* CommandInset types "
-    i = find_token(document.header, '\\use_indices', 0)
+    i = add_use_indices(document)
     if i == -1:
-        document.warning("Malformed LyX document: Missing \\use_indices.")
         return
     useindices = str2bool(get_value(document.header, "\\use_indices", i))
     i = 0
diff --git a/lib/lyx2lyx/lyx_2_1.py b/lib/lyx2lyx/lyx_2_1.py
index ae95841fa5..f9b1e32b63 100644
--- a/lib/lyx2lyx/lyx_2_1.py
+++ b/lib/lyx2lyx/lyx_2_1.py
@@ -409,9 +409,15 @@ def revert_japanese_encodings(document):
 
 def convert_justification(document):
     " Add the \\justification buffer param"
-    i = find_token(document.header, "\\use_indices" , 0)
+    i = find_token(document.header, "\\suppress_date" , 0)
     if i == -1:
-        document.warning("Malformed LyX document: Missing \\use_indices.")
+        i = find_token(document.header, "\\paperorientation" , 0)
+    if i == -1:
+        i = find_token(document.header, "\\use_indices" , 0)
+    if i == -1:
+        i = find_token(document.header, "\\use_bibtopic" , 0)
+    if i == -1:
+        document.warning("Malformed LyX document: Missing \\suppress_date.")
         return
     document.header.insert(i + 1, "\\justification true")
 
-- 
2.39.5