From fe63f7705b5feef0a5eb67a4c3ed47c38301788b Mon Sep 17 00:00:00 2001
From: Rickard Green <rickard@erlang.org>
Date: Tue, 14 Jun 2016 17:54:40 +0200
Subject: Present OTP base version on top html documentation page

---
 system/doc/top/Makefile                 |  5 +++--
 system/doc/top/src/erl_html_tools.erl   | 28 ++++++++++++++--------------
 system/doc/top/templates/index.html.src |  4 ++--
 3 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/system/doc/top/Makefile b/system/doc/top/Makefile
index 6aa9d8d340..7f9cec540b 100644
--- a/system/doc/top/Makefile
+++ b/system/doc/top/Makefile
@@ -121,10 +121,11 @@ $(HTMLDIR)/index.html + $(HTMLDIR)/applications.html: $(INDEX_SCRIPT) $(TEMPLATE
 # Check if we are building the index from source or an installed release
 	if test "$$RELEASE_ROOT" = "" ; then \
 		$(ERL) -noshell -pa $(EBIN) -s erl_html_tools top_index src $(ERL_TOP) \
-		$(HTMLDIR) $(SYSTEM_VSN) -s erlang halt ;\
+		$(HTMLDIR) `cat "$(ERL_TOP)/OTP_VERSION"` -s erlang halt ;\
 	else \
 		$(ERL) -noshell -pa $(EBIN) -s erl_html_tools top_index rel $(RELEASE_ROOT) \
-		$(HTMLDIR) $(SYSTEM_VSN) -s erlang halt ;\
+		$(HTMLDIR) `cat "$(RELEASE_ROOT)/releases/$(SYSTEM_VSN)/OTP_VERSION"` \
+		-s erlang halt ;\
 	fi
 
 
diff --git a/system/doc/top/src/erl_html_tools.erl b/system/doc/top/src/erl_html_tools.erl
index ab58fdf666..d55c2e1164 100644
--- a/system/doc/top/src/erl_html_tools.erl
+++ b/system/doc/top/src/erl_html_tools.erl
@@ -54,24 +54,24 @@ top_index() ->
 	    top_index(src, Value, filename:join(Value, "doc"), RelName)
     end.
 
-top_index([src, RootDir, DestDir, OtpRel])
-  when is_atom(RootDir), is_atom(DestDir), is_atom(OtpRel) ->
-    top_index(src, atom_to_list(RootDir), atom_to_list(DestDir), atom_to_list(OtpRel));
-top_index([rel, RootDir, DestDir, OtpRel])
-  when is_atom(RootDir), is_atom(DestDir), is_atom(OtpRel) ->
-    top_index(rel, atom_to_list(RootDir), atom_to_list(DestDir), atom_to_list(OtpRel));
+top_index([src, RootDir, DestDir, OtpBaseVsn])
+  when is_atom(RootDir), is_atom(DestDir), is_atom(OtpBaseVsn) ->
+    top_index(src, atom_to_list(RootDir), atom_to_list(DestDir), atom_to_list(OtpBaseVsn));
+top_index([rel, RootDir, DestDir, OtpBaseVsn])
+  when is_atom(RootDir), is_atom(DestDir), is_atom(OtpBaseVsn) ->
+    top_index(rel, atom_to_list(RootDir), atom_to_list(DestDir), atom_to_list(OtpBaseVsn));
 top_index(RootDir)  when is_atom(RootDir) -> 
     {_,RelName} = init:script_id(),
     top_index(rel, RootDir, filename:join(RootDir, "doc"), RelName).
 
 
 
-top_index(Source, RootDir, DestDir, OtpRel) ->
+top_index(Source, RootDir, DestDir, OtpBaseVsn) ->
     report("****\nRootDir: ~p", [RootDir]),
     report("****\nDestDir: ~p", [DestDir]),
-    report("****\nOtpRel: ~p", [OtpRel]),
+    report("****\nOtpBaseVsn: ~p", [OtpBaseVsn]),
 
-    put(otp_release, OtpRel),
+    put(otp_base_vsn, OtpBaseVsn),
 
     Templates = find_templates(["","templates",DestDir]),
     report("****\nTemplates: ~p", [Templates]),
@@ -81,9 +81,9 @@ top_index(Source, RootDir, DestDir, OtpRel) ->
     report("****\nGroups: ~p", [Groups]),
     process_templates(Templates, DestDir, Groups).
 
-top_index_silent(RootDir, DestDir, OtpRel) ->
+top_index_silent(RootDir, DestDir, OtpBaseVsn) ->
     put(silent,true),
-    Result = top_index(rel, RootDir, DestDir, OtpRel),
+    Result = top_index(rel, RootDir, DestDir, OtpBaseVsn),
     erase(silent),
     Result.
 
@@ -361,7 +361,7 @@ subst_template_1(Group, Stream, Info) ->
     case file:read(Stream, 100000) of
 	{ok, Template} ->
 	    Fun = fun(Match, _) -> {subst(Match, Info, Group),Info} end,
-	    gsub(Template, "#[A-Za-z0-9]+#", Fun, Info);
+	    gsub(Template, "#[A-Za-z_0-9]+#", Fun, Info);
 	{error, Reason} ->
 	    {error, Reason}
     end.
@@ -379,8 +379,8 @@ get_version(Info) ->
 	    ""
     end.
 		    
-subst("#release#", _Info, _Group) ->
-    get(otp_release);
+subst("#otp_base_vsn#", _Info, _Group) ->
+    get(otp_base_vsn);
 subst("#version#", Info, _Group) ->
     get_version(Info);
 subst("#copyright#", _Info, _Group) ->
diff --git a/system/doc/top/templates/index.html.src b/system/doc/top/templates/index.html.src
index 9637685946..ffda92f45f 100644
--- a/system/doc/top/templates/index.html.src
+++ b/system/doc/top/templates/index.html.src
@@ -22,7 +22,7 @@ limitations under the License.
 <html>
 <head>
   <link rel="stylesheet" href="otp_doc.css" type="text/css"/>
-  <title>Erlang/OTP #release#</title>
+  <title>Erlang/OTP #otp_base_vsn#</title>
 
 <script id="js" type="text/javascript" language="JavaScript" src="js/flipmenu/flipmenu.js">
 
@@ -74,7 +74,7 @@ limitations under the License.
 <div id="content">
 <div class="innertube">
 <center>
-<font size="+1"><b>Erlang/OTP #release#</b></font><br>
+<font size="+1"><b>Erlang/OTP #otp_base_vsn#</b></font><br>
 </center>
 <center>
 <p>
-- 
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