Oops...

[lyx.git] / src / paragraph_funcs.C

diff --git a/src/paragraph_funcs.C b/src/paragraph_funcs.C
index 5796f158c1bfac6ac855efc9ceaec1b4fa758f09..ccdbd46fe4d93cdfedabc1e780d4aaaeadb0097a 100644 (file)
--- a/src/paragraph_funcs.C
+++ b/src/paragraph_funcs.C
@@ -288,8 +288,10 @@ TeXEnvironment(Buffer const * buf,
 
        Language const * language = pit->getParLanguage(bparams);
        Language const * doc_language = bparams.language;
-       Language const * previous_language = pit->previous()
-               ? pit->previous()->getParLanguage(bparams) : doc_language;
+       Language const * previous_language =
+               (pit != buf->paragraphs.begin())
+               ? boost::prior(pit)->getParLanguage(bparams)
+               : doc_language;
        if (language->babel() != previous_language->babel()) {
 
                if (!lyxrc.language_command_end.empty() &&
@@ -424,7 +426,7 @@ TeXOnePar(Buffer const * buf,
                }
 
                if (!pit->params().spacing().isDefault()
-                       && (!pit->previous() || !pit->previous()->hasSameLayout(&*pit))) {
+                       && (pit == buf->paragraphs.begin() || !boost::prior(pit)->hasSameLayout(&*pit))) {
                        os << pit->params().spacing().writeEnvirBegin() << '\n';
                        texrow.newline();
                }
@@ -459,16 +461,18 @@ TeXOnePar(Buffer const * buf,
 
        Language const * language = pit->getParLanguage(bparams);
        Language const * doc_language = bparams.language;
-       Language const * previous_language = pit->previous()
-               ? pit->previous()->getParLanguage(bparams) : doc_language;
+       Language const * previous_language =
+               (pit != buf->paragraphs.begin())
+               ? boost::prior(pit)->getParLanguage(bparams)
+               : doc_language;
 
        if (language->babel() != previous_language->babel()
            // check if we already put language command in TeXEnvironment()
            && !(style->isEnvironment()
-                && (!pit->previous() ||
-                    (pit->previous()->layout() != pit->layout() &&
-                     pit->previous()->getDepth() <= pit->getDepth())
-                    || pit->previous()->getDepth() < pit->getDepth())))
+                && (pit == buf->paragraphs.begin() ||
+                    (boost::prior(pit)->layout() != pit->layout() &&
+                     boost::prior(pit)->getDepth() <= pit->getDepth())
+                    || boost::prior(pit)->getDepth() < pit->getDepth())))
        {
                if (!lyxrc.language_command_end.empty() &&
                    previous_language->babel() != doc_language->babel())
@@ -538,7 +542,9 @@ TeXOnePar(Buffer const * buf,
 
        bool is_command = style->isCommand();
 
-       if (style->resfont.size() != font.size() && pit->next() && !is_command) {
+       if (style->resfont.size() != font.size()
+           && boost::next(pit) != buf->paragraphs.end()
+           && !is_command) {
                if (!need_par)
                        os << '{';
                os << "\\" << font.latexSize() << " \\par}";
@@ -550,7 +556,8 @@ TeXOnePar(Buffer const * buf,
        switch (style->latextype) {
        case LATEX_ITEM_ENVIRONMENT:
        case LATEX_LIST_ENVIRONMENT:
-               if (pit->next() && (pit->params().depth() < pit->next()->params().depth())) {
+               if (boost::next(pit) != buf->paragraphs.end()
+                   && (pit->params().depth() < boost::next(pit)->params().depth())) {
                        os << '\n';
                        texrow.newline();
                }
@@ -558,14 +565,14 @@ TeXOnePar(Buffer const * buf,
        case LATEX_ENVIRONMENT:
                // if its the last paragraph of the current environment
                // skip it otherwise fall through
-               if (pit->next()
-                   && (pit->next()->layout() != pit->layout()
-                       || pit->next()->params().depth() != pit->params().depth()))
+               if (boost::next(pit) != buf->paragraphs.end()
+                   && (boost::next(pit)->layout() != pit->layout()
+                       || boost::next(pit)->params().depth() != pit->params().depth()))
                        break;
                // fall through possible
        default:
                // we don't need it for the last paragraph!!!
-               if (pit->next()) {
+               if (boost::next(pit) != buf->paragraphs.end()) {
                        os << '\n';
                        texrow.newline();
                }
@@ -594,14 +601,14 @@ TeXOnePar(Buffer const * buf,
                }
 
                if (!pit->params().spacing().isDefault()
-                       && (!pit->next() || !pit->next()->hasSameLayout(&*pit))) {
+                       && (boost::next(pit) == buf->paragraphs.end()|| !boost::next(pit)->hasSameLayout(&*pit))) {
                        os << pit->params().spacing().writeEnvirEnd() << '\n';
                        texrow.newline();
                }
        }
 
        // we don't need it for the last paragraph!!!
-       if (pit->next()) {
+       if (boost::next(pit) != buf->paragraphs.end()) {
                os << '\n';
                texrow.newline();
        } else {
@@ -624,6 +631,6 @@ TeXOnePar(Buffer const * buf,
                }
        }
 
-       lyxerr[Debug::LATEX] << "TeXOnePar...done " << pit->next() << endl;
+       lyxerr[Debug::LATEX] << "TeXOnePar...done " << &*boost::next(pit) << endl;
        return ++pit;
 }