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/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2010 Wayne Meissner
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
#include "jruby.h"
#include "ruby.h"
extern "C" VALUE
rb_range_new(VALUE beg, VALUE end, int exclude_end)
{
return callMethod(rb_cRange, "new", 3, beg, end, exclude_end ? Qtrue : Qfalse);
}
extern "C" VALUE
rb_range_beg_len(VALUE range, long* begp, long* lenp, long len, int err)
{
long beg, end, b, e;
if(!rb_obj_is_kind_of(range, rb_cRange)) return Qfalse;
beg = b = NUM2LONG(rb_funcall(range, rb_intern("begin"), 0));
end = e = NUM2LONG(rb_funcall(range, rb_intern("end"), 0));
if(beg < 0) {
beg += len;
if(beg < 0) goto out_of_range;
}
if(err == 0 || err == 2) {
if(beg > len) goto out_of_range;
if(end > len) end = len;
}
if(end < 0) end += len;
if(!RTEST(rb_funcall(range, rb_intern("exclude_end?"), 0))) end++; /* include end point */
len = end - beg;
if(len < 0) len = 0;
*begp = beg;
*lenp = len;
return Qtrue;
out_of_range:
if(err) {
rb_raise(rb_eRangeError, "%ld..%ld out of range",
b, e);
}
return Qnil;
}
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