+ return source_file_->get_line (end_);
+ return 0;
+}
+
+int
+Input::end_column_number () const
+{
+ int line, chr, col, offset = 0;
+ source_file_->get_counts (end_, &line, &chr, &col, &offset);
+
+ return col;
+}
+
+void
+Input::get_counts (int *line, int *chr, int *col, int *offset) const
+{
+ source_file_->get_counts (start_, line, chr, col, offset);
+}
+
+void
+Input::set (Source_file *sf, char const *start, char const *end)
+{
+ source_file_ = sf;
+ start_ = start;
+ end_ = end;
+}
+
+Source_file *
+Input::get_source_file () const
+{
+ return source_file_;
+}
+
+char const *
+Input::start () const
+{
+ return start_;
+}
+
+char const *
+Input::end () const
+{
+ return end_;
+}
+
+static SCM
+with_location_hook_0 (void *it)
+{
+ SCM *args = static_cast <SCM *> (it);
+ return scm_call_0 (args[0]);
+}
+
+SCM
+with_location (SCM loc, SCM proc)
+{
+ return scm_c_with_fluid (Lily::f_location,
+ unsmob<Input> (loc) ? loc : SCM_BOOL_F,
+ with_location_hook_0,
+ static_cast <void *> (&proc));
+}
+
+static SCM
+with_location_hook_1 (void *it)
+{
+ SCM *args = static_cast <SCM *> (it);
+ return scm_call_1 (args[0], args[1]);
+}
+
+SCM
+with_location (SCM loc, SCM proc, SCM arg1)
+{
+ SCM args[] = { proc, arg1 };
+ return scm_c_with_fluid (Lily::f_location,
+ unsmob<Input> (loc) ? loc : SCM_BOOL_F,
+ with_location_hook_1,
+ static_cast <void *> (&args));
+}
+
+static SCM
+with_location_hook_2 (void *it)
+{
+ SCM *args = static_cast <SCM *> (it);
+ return scm_call_2 (args[0], args[1], args[2]);
+}
+
+SCM
+with_location (SCM loc, SCM proc, SCM arg1, SCM arg2)
+{
+ SCM args[] = { proc, arg1, arg2 };
+ return scm_c_with_fluid (Lily::f_location,
+ unsmob<Input> (loc) ? loc : SCM_BOOL_F,
+ with_location_hook_2,
+ static_cast <void *> (&args));
+}
+
+static SCM
+with_location_hook_3 (void *it)
+{
+ SCM *args = static_cast <SCM *> (it);
+ return scm_call_3 (args[0], args[1], args[2], args[3]);
+}