1 files changed, 32 insertions, 0 deletions
diff --git a/src/piraha/Or.cc b/src/piraha/Or.cc
new file mode 100644
index 00000000..eebf2e74
--- /dev/null
+++ b/src/piraha/Or.cc
@@ -0,0 +1,32 @@
+#include <iostream>
+#include <stdarg.h>
+#include "Piraha.hpp"
+
+Or::Or(Pattern *p,...) : patterns() {
+    va_list ap;
+    va_start(ap,p);
+    patterns.push_back(p);
+    while(true) {
+        Pattern *pat = va_arg(ap,Pattern*);
+        if(pat == NULL)
+            break;
+        //std::cout << "pat=" << pat->fmt() << std::endl;
+        patterns.push_back(pat);
+        assert(patterns.size()<7);
+    }
+    va_end(ap);
+}
+
+bool Or::match(Matcher *m) {
+    typedef vector<smart_ptr<Pattern> >::iterator pattern_iter;
+    int save = m->pos;
+    vector<smart_ptr<Group> > chSave;
+    chSave = m->children;
+    for(pattern_iter p = patterns.begin();p != patterns.end();++p) {
+        m->pos = save;
+        m->children = chSave;
+        if((*p)->match(m))
+            return true;
+    }
+    return false;
+}