New tag MaxCiteNames

This determines the number of authors before "et al.". We had it
hardcoded to 2, but actually the nuumber differs.

lib/citeengines/basic.citeengine

@@ -7,7 +7,7 @@
 
 # Author: Julien Rioux <jrioux@lyx.org>
 
-Format 62
+Format 63
 
 # The framework (biblatex|bibtex)
 CiteFramework bibtex

lib/citeengines/jurabib.citeengine

@@ -8,7 +8,7 @@
 
 # Author: Julien Rioux <jrioux@lyx.org>
 
-Format 62
+Format 63
 
 Requires jurabib
 
@@ -22,6 +22,9 @@ CiteEngineType authoryear
 # Default style file
 DefaultBiblio  jurabib
 
+# Maximum number of names before "et al." chimes in
+MaxCiteNames 3
+
 
 # The syntax of the cite command definitions below is:
 # LyXName|alias*<!_stardesc!_stardesctooltip>[][]=latexcmd

lib/citeengines/natbib.citeengine

@@ -9,7 +9,7 @@
 
 # Author: Julien Rioux <jrioux@lyx.org>
 
-Format 62
+Format 63
 
 Requires natbib
 
@@ -23,6 +23,9 @@ CiteEngineType authoryear|numerical
 # Default style files for either engine type
 DefaultBiblio  authoryear:plainnat|numerical:plainnat
 
+# Maximum number of names before "et al." chimes in
+MaxCiteNames 2
+
 
 # The syntax of the cite command definitions below is:
 # LyXName|alias*<!_stardesc!_stardesctooltip>[][]=latexcmd

lib/scripts/layout2layout.py

@@ -11,7 +11,7 @@
 # This script will update a .layout file to current format
 
 # The latest layout format is also defined in src/TextClass.cpp
-currentFormat = 62
+currentFormat = 63
 
 
 # Incremented to format 4, 6 April 2007, lasgouttes
@@ -208,6 +208,10 @@ currentFormat = 62
 # Incremented to format 62, 21 October 2016 by spitz
 # New Layout argument tag "PassThru"
 
+# Incremented to format 63, 7 January 2017 by spitz
+# - New textclass tags CiteFramework, MaxCiteNames (for cite engines)
+# - Extended InsetCite syntax.
+
 # Do not forget to document format change in Customization
 # Manual (section "Declaring a new text class").
 
@@ -451,7 +455,7 @@ def convert(lines, end_format):
                 i += 1
             continue
 
-        if format >= 60 and format <= 61:
+        if format >= 60 and format <= 62:
             # nothing to do.
             i += 1
             continue

src/TextClass.cpp

@@ -62,7 +62,7 @@ namespace lyx {
 // You should also run the development/tools/updatelayouts.py script,
 // to update the format of all of our layout files.
 //
-int const LAYOUT_FORMAT = 62; //spitz PassThru for arguments.
+int const LAYOUT_FORMAT = 63; //spitz: new tags CiteFramework, MaxCiteNames, extended InsetCite syntax.
 
 
 // Layout format for the current lyx file format. Controls which format is
@@ -155,7 +155,7 @@ TextClass::TextClass()
 	  outputType_(LATEX), outputFormat_("latex"),
 	  defaultfont_(sane_font),
 	  titletype_(TITLE_COMMAND_AFTER), titlename_("maketitle"),
-	  min_toclevel_(0), max_toclevel_(0),
+	  min_toclevel_(0), max_toclevel_(0), maxcitenames_(2),
 	  cite_full_author_list_(true)
 {
 }
@@ -222,6 +222,7 @@ enum TextClassTags {
 	TC_CITEENGINETYPE,
 	TC_CITEFORMAT,
 	TC_CITEFRAMEWORK,
+	TC_MAXCITENAMES,
 	TC_DEFAULTBIBLIO,
 	TC_FULLAUTHORLIST,
 	TC_OUTLINERNAME
@@ -256,6 +257,7 @@ LexerKeyword textClassTags[] = {
 	{ "input",             TC_INPUT },
 	{ "insetlayout",       TC_INSETLAYOUT },
 	{ "leftmargin",        TC_LEFTMARGIN },
+	{ "maxcitenames",      TC_MAXCITENAMES },
 	{ "modifystyle",       TC_MODIFYSTYLE },
 	{ "nocounter",         TC_NOCOUNTER },
 	{ "nofloat",           TC_NOFLOAT },
@@ -765,6 +767,11 @@ TextClass::ReturnValues TextClass::read(Lexer & lexrc, ReadType rt)
 			citeframework_ = rtrim(lexrc.getString());
 			break;
 
+		case TC_MAXCITENAMES:
+			lexrc.next();
+			maxcitenames_ = size_t(lexrc.getInteger());
+			break;
+
 		case TC_DEFAULTBIBLIO:
 			if (lexrc.next()) {
 				vector<string> const dbs =

src/TextClass.h

@@ -335,6 +335,8 @@ protected:
 	std::map<std::string, std::string> cite_default_biblio_style_;
 	/// Citation command aliases
 	std::map<std::string, std::string> cite_command_aliases_;
+	/// The maximum number of citations before "et al."
+	size_t maxcitenames_;
 	/// Whether full author lists are supported
 	bool cite_full_author_list_;
 	/// The possible citation styles
@@ -498,6 +500,8 @@ public:
 	///
 	std::map<std::string, std::string> const & citeCommandAliases() const
 	{ return cite_command_aliases_; }
+	/// The maximum number of citations before "et al."
+	size_t max_citenames() const { return maxcitenames_; }
 	///
 	bool const & fullAuthorList() const { return cite_full_author_list_; }
 protected: