Add basic support for cprotect

[features.git] / src / insets / InsetText.cpp

diff --git a/src/insets/InsetText.cpp b/src/insets/InsetText.cpp
index b19b3841ae6689ea0776c2dffd66ab172aec976e..4c560f492c7314d9297075e6005ea541fcedd3bf 100644 (file)
--- a/src/insets/InsetText.cpp
+++ b/src/insets/InsetText.cpp
@@ -458,7 +458,9 @@ void InsetText::latex(otexstream & os, OutputParams const & runparams) const
                        // FIXME UNICODE
                        // FIXME \protect should only be used for fragile
                        //    commands, but we do not provide this information yet.
-                       if (runparams.moving_arg)
+                       if (hasCProtectContent())
+                               os << "\\cprotect";
+                       else if (runparams.moving_arg)
                                os << "\\protect";
                        os << '\\' << from_utf8(il.latexname());
                        if (!il.latexargs().empty())
@@ -760,6 +762,19 @@ ParagraphList & InsetText::paragraphs()
 }
 
 
+bool InsetText::hasCProtectContent() const
+{
+       ParagraphList const & pars = paragraphs();
+       pit_type pend = paragraphs().size();
+       for (pit_type pit = 0; pit != pend; ++pit) {
+               Paragraph const & par = pars[pit];
+               if (par.needsCProtection())
+                       return true;
+       }
+       return false;
+}
+
+
 bool InsetText::insetAllowed(InsetCode code) const
 {
        switch (code) {
@@ -1070,4 +1085,35 @@ InsetText::XHTMLOptions operator|(InsetText::XHTMLOptions a1, InsetText::XHTMLOp
        return static_cast<InsetText::XHTMLOptions>((int)a1 | (int)a2);
 }
 
+
+bool InsetText::needsCProtection() const
+{
+       if (!getLayout().needsCProtect())
+               return false;
+
+       // Environments need cprotection regardless the content
+       if (getLayout().latextype() == InsetLayout::ENVIRONMENT)
+               return true;
+
+       // Commands need cprotection if they contain specific chars
+       int const nchars_escape = 9;
+       static char_type const chars_escape[nchars_escape] = {
+               '&', '_', '$', '%', '#', '^', '{', '}', '\\'};
+
+       ParagraphList const & pars = paragraphs();
+       pit_type pend = paragraphs().size();
+
+       for (pit_type pit = 0; pit != pend; ++pit) {
+               Paragraph const & par = pars[pit];
+               if (par.needsCProtection())
+                       return true;
+               docstring const pars = par.asString();
+               for (int k = 0; k < nchars_escape; k++) {
+                       if (contains(pars, chars_escape[k]))
+                               return true;
+               }
+       }
+       return false;
+}
+
 } // namespace lyx