1. Enable --with-superscript

2. Write a superscript test case
3. Up to version 1.2.7
4. have the version string include whether superscripts are enabled

INSTALL

@@ -29,6 +29,7 @@ Configure.sh has a few options that can be set:
 --enable-dl-tag	Use the DL tag extension
 --enable-pandoc-header	Use pandoc-style header blocks
 --with-tabstops=N	Set tabstops to N characters (default is 4)
+--with-superscript	A^B expands to A<sup>B</sup>
 --enable-amalloc	Use a debugging memory allocator (to detect leaks)
 
 3) Installing sample programs and manpages

VERSION

@@ -1 +1 @@
-1.2.6
+1.2.7

configure.sh

@@ -10,6 +10,7 @@
 ac_help='--enable-dl-tag	Use the DL tag extension
 --enable-pandoc-header	Use pandoc-style header blocks
 --with-tabstops=N	Set tabstops to N characters (default is 4)
+--with-superscript	A^B becomes A<sup>B</sup>
 --enable-amalloc	Enable memory allocation debugging'
 
 LOCAL_AC_OPTIONS='
@@ -100,6 +101,9 @@ fi
 AC_DEFINE 'TABSTOP' $TABSTOP
 AC_SUB    'TABSTOP' $TABSTOP
 
+test -z "$WITH_SUPERSCRIPT" || AC_DEFINE 'SUPERSCRIPT'	1
+
+
 
 if [ "$WITH_AMALLOC" ]; then
     AC_DEFINE	'USE_AMALLOC'	1

generate.c

@@ -925,7 +925,7 @@ text(MMIOT *f)
 	case '[':   if ( tag_text(f) || !linkylinky(0, f) )
 			Qchar(c, f);
 		    break;
-#if WITH_SUPERSCRIPT
+#if SUPERSCRIPT
 	case '^':   if ( isthisspace(f,-1) || isthisspace(f,1) )
 			Qchar(c,f);
 		    else {

tests/smarty.t

@@ -113,4 +113,14 @@ else
     rc=1
 fi
 
+if ./markdown -V | grep SUPERSCRIPT >/dev/null; then
+    ./echo -n "  A^B -> A<sup>B</sup> ............. "
+    if ./echo "A^B" | ./markdown | grep '<sup>B</sup>' >/dev/null; then
+	./echo "ok"
+    else
+	./echo "FAILED"
+	rc=1
+    fi
+fi
+
 exit $rc

version.c.in

@@ -10,6 +10,9 @@ char markdown_version[] = VERSION
 #if @TABSTOP@ != 4
 		" TAB=@TABSTOP@"
 #endif
+#if SUPERSCRIPT
+		" SUPERSCRIPT"
+#endif
 #if USE_AMALLOC
 		" DEBUG"
 #endif