Remove unsupported macros from autocompletion

We have some math macros that exist only because LyX can display them easily,
but which require user preamble code. These commands should not appear in
autocompletion, they are only there to make the formulas of users who actually
need thgese symbols and know what to put into the preamble more beautiful.

lib/symbols

@@ -49,7 +49,7 @@ underrightarrow     decoration none       amsmath
 #Do not load automatically, it redefines some other symbols, and we don't
 #have a possibility to turn automatic loading off like for ams
 #undertilde          decoration none       accents
-undertilde          decoration none
+undertilde          decoration none       hiddensymbol
 utilde              decoration none       undertilde
 vec                 decoration none
 widehat             decoration none
@@ -60,7 +60,7 @@ dots              dots        none
 #Do not load automatically, it redefines some other symbols, and we don't
 #have a possibility to turn automatic loading off like for ams
 #adots             dots        none        yhmath
-adots             dots        none
+adots             dots        none        hiddensymbol
 cdots             dots        none
 ddots             dots        none
 dotsb             dots        none        amsmath
@@ -93,12 +93,12 @@ Biggr             big         none
 # packages. No 'm' versions!
 # See lucidabr.dtx for a possible implementation if you want to use these
 # with other fonts.
-biggg             big         none
-bigggl            big         none
-bigggr            big         none
-Biggg             big         none
-Bigggl            big         none
-Bigggr            big         none
+biggg             big         none        hiddensymbol
+bigggl            big         none        hiddensymbol
+bigggr            big         none        hiddensymbol
+Biggg             big         none        hiddensymbol
+Bigggl            big         none        hiddensymbol
+Bigggr            big         none        hiddensymbol
 
 # font changes
 # name           "font"       math/text family  series  shape  color

src/mathed/InsetMathNest.cpp

@@ -2113,7 +2113,7 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
 
 	// fill in global macros
 	macros.clear();
-	MacroTable::globalMacros().getMacroNames(macros);
+	MacroTable::globalMacros().getMacroNames(macros, false);
 	//lyxerr << "Globals completion macros: ";
 	for (it = macros.begin(); it != macros.end(); ++it) {
 		//lyxerr << "\\" + *it << " ";
@@ -2198,7 +2198,7 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
 	MathWordList::const_iterator it2;
 	//lyxerr << "Globals completion commands: ";
 	for (it2 = words.begin(); it2 != words.end(); ++it2) {
-		if (it2->second.inset != "macro") {
+		if (it2->second.inset != "macro" && !it2->second.hidden) {
 			// macros are already read from MacroTable::globalMacros()
 			globals.push_back('\\' + it2->first);
 			//lyxerr << '\\' + it2->first << ' ';

src/mathed/MacroTable.cpp

@@ -119,6 +119,14 @@ string const MacroData::requires() const
 }
 
 
+bool MacroData::hidden() const
+{
+	if (sym_)
+		return sym_->hidden;
+	return false;
+}
+
+
 docstring const MacroData::xmlname() const
 {
 	if (sym_)
@@ -242,9 +250,10 @@ MacroTable::insert(Buffer * buf, docstring const & def)
 }
 
 
-void MacroTable::getMacroNames(std::set<docstring> & names) const
+void MacroTable::getMacroNames(std::set<docstring> & names, bool gethidden) const
 {
 	for (const_iterator it = begin(); it != end(); ++it)
+		if (gethidden || !it->second.hidden())
 			names.insert(it->first);
 }
 

src/mathed/MacroTable.h

@@ -62,6 +62,8 @@ public:
 	///
 	std::string const requires() const;
 	///
+	bool hidden() const;
+	///
 	docstring const xmlname() const;
 	///
 	char const * MathMLtype() const;
@@ -162,7 +164,7 @@ public:
 	///
 	void dump();
 	///
-	void getMacroNames(std::set<docstring> & names) const;
+	void getMacroNames(std::set<docstring> & names, bool gethidden) const;
 
 	/// the global list
 	static MacroTable & globalMacros();

src/mathed/MathFactory.cpp

@@ -185,6 +185,7 @@ void initSymbols()
 			string requires;
 			string extra;
 			string xmlname;
+			bool hidden = false;
 			is >> macro >> requires;
 			if ((is >> xmlname)) {
 				extra = requires;
@@ -205,6 +206,10 @@ void initSymbols()
 					tmp.name = it->first;
 					tmp.extra = from_utf8(extra);
 					tmp.xmlname = from_utf8(xmlname);
+					if (requires == "hiddensymbol") {
+						requires = "";
+						tmp.hidden = hidden = true;
+					} else
 						tmp.requires = requires;
 					theMathWordList[it->first] = tmp;
 					wit = theMathWordList.find(it->first);
@@ -218,7 +223,8 @@ void initSymbols()
 				<< "  draw: 0"
 				<< "  extra: " << extra
 				<< "  xml: " << xmlname
-				<< "  requires: " << requires << '\'');
+				<< "  requires: " << requires
+				<< "  hidden: " << hidden << '\'');
 			continue;
 		}
 
@@ -294,6 +300,12 @@ void initSymbols()
 					      << " used for " << to_utf8(tmp.name));
 		}
 
+		if (tmp.requires == "hiddensymbol")
+		{
+			tmp.requires = "";
+			tmp.hidden = true;
+		}
+
 		if (theMathWordList.find(tmp.name) != theMathWordList.end())
 			LYXERR(Debug::MATHED, "readSymbols: inset " << to_utf8(tmp.name)
 				<< " already exists.");
@@ -307,7 +319,8 @@ void initSymbols()
 			<< "  draw: " << int(tmp.draw.empty() ? 0 : tmp.draw[0])
 			<< "  extra: " << to_utf8(tmp.extra)
 			<< "  xml: " << to_utf8(tmp.xmlname)
-			<< "  requires: " << tmp.requires << '\'');
+			<< "  requires: " << tmp.requires
+			<< "  hidden: " << tmp.hidden << '\'');
 	}
 	string tmp = "cmm";
 	string tmp2 = "cmsy";

src/mathed/MathParser.h

@@ -30,6 +30,8 @@ class Lexer;
 ///
 class latexkeys {
 public:
+	///
+	latexkeys() : hidden(false) {}
 	///
 	char const * MathMLtype() const;
 	/// name of the macro or primitive
@@ -56,6 +58,9 @@ public:
 	docstring xmlname;
 	/// required LaTeXFeatures
 	std::string requires;
+	/// Should this macro be hidden from autocompletion (since it requires
+	/// user preamble code)?
+	bool hidden;
 };