Do not overwrite read-only files. We now move the file to the backup directory and...

[lyx.git] / src / Layout.cpp

diff --git a/src/Layout.cpp b/src/Layout.cpp
index fd4709e35659bf8927e4974b014f3efc588b5a14..5ba77ce1c6d0c67a0c8983d6f4c4231b6b5ed5a9 100644 (file)
--- a/src/Layout.cpp
+++ b/src/Layout.cpp
@@ -23,8 +23,9 @@
 #include "support/lassert.h"
 #include "support/lstrings.h"
 #include "support/Messages.h"
-
 #include "support/regex.h"
+#include "support/textutils.h"
+
 
 using namespace std;
 using namespace lyx::support;
@@ -183,7 +184,7 @@ bool Layout::read(Lexer & lex, TextClass const & tclass)
                { "htmllabel",      LT_HTMLLABEL },
                { "htmllabelattr",  LT_HTMLLABELATTR },
                { "htmllabelfirst", LT_HTMLLABELFIRST },
-               { "htmlpremable",   LT_HTMLPREAMBLE },
+               { "htmlpreamble",   LT_HTMLPREAMBLE },
                { "htmlstyle",      LT_HTMLSTYLE },
                { "htmltag",        LT_HTMLTAG },
                { "htmltitle",      LT_HTMLTITLE },
@@ -996,14 +997,20 @@ string Layout::defaultCSSClass() const
        docstring::const_iterator it = name().begin();
        docstring::const_iterator en = name().end();
        for (; it != en; ++it) {
-               if (!isalpha(*it))
-                       continue;
-               if (islower(*it))
-                       d += *it;
-               else 
-                       d += lowercase(*it);
+               char_type const c = *it;
+               if (!isAlphaASCII(c)) {
+                       if (d.empty())
+                               // make sure we don't start with an underscore,
+                               // as that sometimes causes problems.
+                               d = from_ascii("lyx_");
+                       else
+                               d += '_';
+               } else if (islower(c))
+                       d += c;
+               else
+                       // this is slow, so do it only if necessary
+                       d += lowercase(c);
        }
-       // are there other characters we need to remove?
        defaultcssclass_ = to_utf8(d);
        return defaultcssclass_;
 }