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To: vim_dev@googlegroups.com
Subject: Patch 7.3.307
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
------------

Patch 7.3.307
Problem:    Python 3 doesn't support slice assignment.
Solution:   Implement slices. (Brett Overesch, Roland Puntaier)
Files:	    src/if_python3.c


*** ../vim-7.3.306/src/if_python3.c	2011-08-28 16:00:14.000000000 +0200
--- src/if_python3.c	2011-09-14 15:01:26.000000000 +0200
***************
*** 855,862 ****
  
  static Py_ssize_t BufferLength(PyObject *);
  static PyObject *BufferItem(PyObject *, Py_ssize_t);
! static PyObject* BufferSubscript(PyObject *self, PyObject* idx);
! static Py_ssize_t BufferAsSubscript(PyObject *self, PyObject* idx, PyObject* val);
  
  
  /* Line range type - Implementation functions
--- 855,862 ----
  
  static Py_ssize_t BufferLength(PyObject *);
  static PyObject *BufferItem(PyObject *, Py_ssize_t);
! static PyObject* BufferSubscript(PyObject *self, PyObject *idx);
! static Py_ssize_t BufferAsSubscript(PyObject *self, PyObject *idx, PyObject *val);
  
  
  /* Line range type - Implementation functions
***************
*** 865,872 ****
  
  #define RangeType_Check(obj) ((obj)->ob_base.ob_type == &RangeType)
  
! static PyObject* RangeSubscript(PyObject *self, PyObject* idx);
  static Py_ssize_t RangeAsItem(PyObject *, Py_ssize_t, PyObject *);
  
  /* Current objects type - Implementation functions
   * -----------------------------------------------
--- 865,873 ----
  
  #define RangeType_Check(obj) ((obj)->ob_base.ob_type == &RangeType)
  
! static PyObject* RangeSubscript(PyObject *self, PyObject *idx);
  static Py_ssize_t RangeAsItem(PyObject *, Py_ssize_t, PyObject *);
+ static Py_ssize_t RangeAsSubscript(PyObject *self, PyObject *idx, PyObject *val);
  
  /* Current objects type - Implementation functions
   * -----------------------------------------------
***************
*** 1035,1041 ****
  	      &step, &slicelen) < 0) {
  	    return NULL;
  	}
! 	return BufferSlice(self,start,stop);
      } else {
  	PyErr_SetString(PyExc_IndexError, "Index must be int or slice");
  	return NULL;
--- 1036,1042 ----
  	      &step, &slicelen) < 0) {
  	    return NULL;
  	}
! 	return BufferSlice(self, start, stop);
      } else {
  	PyErr_SetString(PyExc_IndexError, "Index must be int or slice");
  	return NULL;
***************
*** 1084,1090 ****
  PyMappingMethods RangeAsMapping = {
      /* mp_length	*/ (lenfunc)RangeLength,
      /* mp_subscript     */ (binaryfunc)RangeSubscript,
!     /* mp_ass_subscript */ (objobjargproc)0,
  };
  
  /* Line range object - Implementation
--- 1085,1091 ----
  PyMappingMethods RangeAsMapping = {
      /* mp_length	*/ (lenfunc)RangeLength,
      /* mp_subscript     */ (binaryfunc)RangeSubscript,
!     /* mp_ass_subscript */ (objobjargproc)RangeAsSubscript,
  };
  
  /* Line range object - Implementation
***************
*** 1123,1128 ****
--- 1124,1138 ----
  		    &((RangeObject *)(self))->end);
  }
  
+     static Py_ssize_t
+ RangeAsSlice(PyObject *self, Py_ssize_t lo, Py_ssize_t hi, PyObject *val)
+ {
+     return RBAsSlice(((RangeObject *)(self))->buf, lo, hi, val,
+ 		    ((RangeObject *)(self))->start,
+ 		    ((RangeObject *)(self))->end,
+ 		    &((RangeObject *)(self))->end);
+ }
+ 
      static PyObject *
  RangeSubscript(PyObject *self, PyObject* idx)
  {
***************
*** 1138,1150 ****
  		&step, &slicelen) < 0) {
  	    return NULL;
  	}
! 	return RangeSlice(self,start,stop+1);
      } else {
  	PyErr_SetString(PyExc_IndexError, "Index must be int or slice");
  	return NULL;
      }
  }
  
  /* Buffer list object - Definitions
   */
  
--- 1148,1183 ----
  		&step, &slicelen) < 0) {
  	    return NULL;
  	}
! 	return RangeSlice(self, start, stop);
      } else {
  	PyErr_SetString(PyExc_IndexError, "Index must be int or slice");
  	return NULL;
      }
  }
  
+     static Py_ssize_t
+ RangeAsSubscript(PyObject *self, PyObject *idx, PyObject *val)
+ {
+     if (PyLong_Check(idx)) {
+ 	long n = PyLong_AsLong(idx);
+ 	return RangeAsItem(self, n, val);
+     } else if (PySlice_Check(idx)) {
+ 	Py_ssize_t start, stop, step, slicelen;
+ 
+ 	if (PySlice_GetIndicesEx((PySliceObject *)idx,
+ 		((RangeObject *)(self))->end-((RangeObject *)(self))->start+1,
+ 		&start, &stop,
+ 		&step, &slicelen) < 0) {
+ 	    return -1;
+ 	}
+ 	return RangeAsSlice(self, start, stop, val);
+     } else {
+ 	PyErr_SetString(PyExc_IndexError, "Index must be int or slice");
+ 	return -1;
+     }
+ }
+ 
+ 
  /* Buffer list object - Definitions
   */
  
*** ../vim-7.3.306/src/version.c	2011-09-14 14:43:21.000000000 +0200
--- src/version.c	2011-09-14 14:58:16.000000000 +0200
***************
*** 711,712 ****
--- 711,714 ----
  {   /* Add new patch number below this line */
+ /**/
+     307,
  /**/

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 /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
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