Import table cells in sideways environment.

This is a part of bug #8081: Translate cells in
\begin{sideways}...\end{sideways} to native syntax. The turn environment
comes in a later commit, since this one os suitable for backporting.

src/tex2lyx/Preamble.cpp

@@ -173,9 +173,9 @@ const char * const known_xetex_packages[] = {"arabxetex", "fixlatvian",
 
 /// packages that are automatically skipped if loaded by LyX
 const char * const known_lyx_packages[] = {"amsbsy", "amsmath", "amssymb",
-"amstext", "amsthm", "array", "booktabs", "calc",
-"color", "float", "graphicx", "hhline", "ifthen", "longtable", "makeidx",
-"multirow", "nomencl", "pdfpages", "rotfloat", "splitidx", "setspace",
+"amstext", "amsthm", "array", "booktabs", "calc", "color", "float",
+"graphicx", "hhline", "ifthen", "longtable", "makeidx", "multirow",
+"nomencl", "pdfpages", "rotating", "rotfloat", "splitidx", "setspace",
 "subscript", "textcomp", "ulem", "url", "varioref", "verbatim", "wrapfig", 0};
 
 // codes used to remove packages that are loaded automatically by LyX.

src/tex2lyx/table.cpp

@@ -1194,11 +1194,35 @@ void handle_tabular(Parser & p, ostream & os, string const & name,
 				for (size_t c = 1; c < colinfo.size(); ++c)
 					cellinfo[row][c].multi = CELL_PART_OF_MULTICOLUMN;
 			} else {
+				bool sideways = false;
+				if (p.next_token().cs() == "begin") {
+					p.pushPosition();
+					p.get_token();
+					string const env = p.getArg('{', '}');
+					if (env == "sideways") {
+						active_environments.push_back(env);
+						p.verbatimEnvironment(env);
+						active_environments.pop_back();
+						p.skip_spaces();
+						if (!p.good())
+							sideways = true;
+					}
+					p.popPosition();
+				}
 				cellinfo[row][col].leftlines  = colinfo[col].leftlines;
 				cellinfo[row][col].rightlines = colinfo[col].rightlines;
 				cellinfo[row][col].align      = colinfo[col].align;
 				ostringstream os;
-				parse_text_in_inset(p, os, FLAG_CELL, false, context);
+				if (sideways) {
+					cellinfo[row][col].rotate = 90;
+					p.get_token();
+					active_environments.push_back(p.getArg('{', '}'));
+					parse_text_in_inset(p, os, FLAG_END, false, context);
+					active_environments.pop_back();
+					preamble.registerAutomaticallyLoadedPackage("rotating");
+				} else {
+					parse_text_in_inset(p, os, FLAG_CELL, false, context);
+				}
 				cellinfo[row][col].content += os.str();
 			}
 		}

src/tex2lyx/test/test-insets.tex

@@ -27,6 +27,7 @@
 \usepackage{longtable}
 \usepackage{xargs}
 \usepackage{subscript}
+\usepackage{rotating}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%% LyX specific LaTeX commands.
 \providecommand{\LyX}{L\kern-.1667em\lower.25em\hbox{Y}\kern-.125emX\@}
@@ -375,7 +376,7 @@ A table*:
 \begin{tabular*} % some comment
 {0.8\columnwidth}[b]{lr}
 two\\
-lonely&lines
+lonely&\begin{sideways}lines\end{sideways}
 \end{tabular*}
 
 A booktabs table: