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+/*****
+ * envcompleter.h
+ * Andy Hammerlindl 2006/07/31
+ *
+ * Implements a text completion function for readline based on symbols in the
+ * environment.
+ *****/
+
+#ifndef ENVCOMPLETER_H
+#define ENVCOMPLETER_H
+
+#include "env.h"
+#include "interact.h"
+
+namespace trans {
+
+class envCompleter : public interact::completer {
+public:
+ typedef protoenv::symbol_list symbol_list;
+
+private:
+ protoenv &e;
+ symbol_list l;
+ symbol_list::iterator index;
+
+ // These are completions that don't come from the environment, such as
+ // keywords. They are read from the keywords file.
+ static void basicCompletions(symbol_list &l, string start);
+
+ void makeList(const char *text);
+
+public:
+ envCompleter(protoenv &e)
+ : e(e), l(), index(l.end()) {}
+
+ char *operator () (const char *text, int state);
+};
+
+} // namespace trans
+
+#endif // ENVCOMPLETER_H