X-Git-Url: https://harishankar.org/repos/?p=biaweb2.git;a=blobdiff_plain;f=biawebutil.hpp;h=c8603ea106530e7cdc55e52168cc8a0d7e8827e9;hp=36aa0df16242a20f6aebfb8d324dd65e4b1e8aba;hb=44d5fb1ff24147859c5f198dd47f6956ec5fea51;hpb=9dd960dd37c92af1ca6531c72b82849ea59a354c

diff --git a/biawebutil.hpp b/biawebutil.hpp
index 36aa0df..c8603ea 100644
--- a/biawebutil.hpp
+++ b/biawebutil.hpp
@@ -2,9 +2,43 @@
 #define __BIAWEBUTIL__
 #include <string>
 
+// "discount" markdown library is a C library and hence requires to be wrapped in 
+// extern "C"
+extern "C" {
+    #include <mkdio.h>
+}
+
 // utility functions for Biaweb that don't fit into any class and can be used by 
 // any class
 namespace biaweb {
+
+    // convert markdown
+    std::string convert_to_markdown (std::string str) {
+        // discount is a C library and it doesn't work well with C++ streams
+        // and there seems no way to get the output of any of these functions
+        // into an std::string. 
+        // the only option seems to be to write the output of the markdown()
+        // function to a temporary working file and then read it back into C++ 
+        // with the normal std::ifstream and feed it into the std::string 
+        // till a cleaner solution can be found. 
+        MMIOT *doc;
+        doc = mkd_string (str.c_str(), str.size(), 0);
+        char tempfile[20];
+        strcpy (tempfile, "/tmp/biawebXXXXXX");
+        int fd = mkstemp (tempfile);
+        FILE *f = fdopen (fd, "w");
+        markdown (doc, f, 0);
+        fclose (f);
+        std::ifstream ftmp (tempfile);
+        std::string tmpl ( (std::istreambuf_iterator<char> (ftmp)),
+                            (std::istreambuf_iterator<char> ())
+                                );
+        ftmp.close ();
+        mkd_cleanup (doc);
+        remove (tempfile);
+        return tmpl;
+    }
+
     // convert a document title to a file title - strip out the non-alpha
     // chars and spaces
     std::string convert_title (std::string title)