/* Primitive operations on Lisp data types for GNU Emacs Lisp interpreter.
- Copyright (C) 1985, 1986, 1988, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1985,86,88,93,94,95,97,98,99, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
+the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU Emacs is distributed in the hope that it will be useful,
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+#include <config.h>
#include <signal.h>
-
-#include "config.h"
+#include <stdio.h>
#include "lisp.h"
#include "puresize.h"
-
-#ifndef standalone
+#include "charset.h"
#include "buffer.h"
+#include "keyboard.h"
+#include "frame.h"
+#include "syssignal.h"
+
+#ifdef STDC_HEADERS
+#include <float.h>
#endif
-#include "syssignal.h"
+/* If IEEE_FLOATING_POINT isn't defined, default it from FLT_*. */
+#ifndef IEEE_FLOATING_POINT
+#if (FLT_RADIX == 2 && FLT_MANT_DIG == 24 \
+ && FLT_MIN_EXP == -125 && FLT_MAX_EXP == 128)
+#define IEEE_FLOATING_POINT 1
+#else
+#define IEEE_FLOATING_POINT 0
+#endif
+#endif
+
+/* Work around a problem that happens because math.h on hpux 7
+ defines two static variables--which, in Emacs, are not really static,
+ because `static' is defined as nothing. The problem is that they are
+ here, in floatfns.c, and in lread.c.
+ These macros prevent the name conflict. */
+#if defined (HPUX) && !defined (HPUX8)
+#define _MAXLDBL data_c_maxldbl
+#define _NMAXLDBL data_c_nmaxldbl
+#endif
-#ifdef LISP_FLOAT_TYPE
#include <math.h>
-#endif /* LISP_FLOAT_TYPE */
+
+#if !defined (atof)
+extern double atof ();
+#endif /* !atof */
Lisp_Object Qnil, Qt, Qquote, Qlambda, Qsubr, Qunbound;
Lisp_Object Qerror_conditions, Qerror_message, Qtop_level;
Lisp_Object Qerror, Qquit, Qwrong_type_argument, Qargs_out_of_range;
Lisp_Object Qvoid_variable, Qvoid_function, Qcyclic_function_indirection;
+Lisp_Object Qcyclic_variable_indirection, Qcircular_list;
Lisp_Object Qsetting_constant, Qinvalid_read_syntax;
Lisp_Object Qinvalid_function, Qwrong_number_of_arguments, Qno_catch;
-Lisp_Object Qend_of_file, Qarith_error;
+Lisp_Object Qend_of_file, Qarith_error, Qmark_inactive;
Lisp_Object Qbeginning_of_buffer, Qend_of_buffer, Qbuffer_read_only;
-Lisp_Object Qintegerp, Qnatnump, Qsymbolp, Qlistp, Qconsp;
+Lisp_Object Qtext_read_only;
+Lisp_Object Qintegerp, Qnatnump, Qwholenump, Qsymbolp, Qlistp, Qconsp;
Lisp_Object Qstringp, Qarrayp, Qsequencep, Qbufferp;
Lisp_Object Qchar_or_string_p, Qmarkerp, Qinteger_or_marker_p, Qvectorp;
+Lisp_Object Qbuffer_or_string_p, Qkeywordp;
Lisp_Object Qboundp, Qfboundp;
+Lisp_Object Qchar_table_p, Qvector_or_char_table_p;
+
Lisp_Object Qcdr;
+Lisp_Object Qad_advice_info, Qad_activate_internal;
+
+Lisp_Object Qrange_error, Qdomain_error, Qsingularity_error;
+Lisp_Object Qoverflow_error, Qunderflow_error;
-#ifdef LISP_FLOAT_TYPE
-Lisp_Object Qfloatp, Qinteger_or_floatp, Qinteger_or_float_or_marker_p;
+Lisp_Object Qfloatp;
Lisp_Object Qnumberp, Qnumber_or_marker_p;
-#endif
-static Lisp_Object swap_in_symval_forwarding ();
+static Lisp_Object Qinteger, Qsymbol, Qstring, Qcons, Qmarker, Qoverlay;
+static Lisp_Object Qfloat, Qwindow_configuration, Qwindow;
+Lisp_Object Qprocess;
+static Lisp_Object Qcompiled_function, Qbuffer, Qframe, Qvector;
+static Lisp_Object Qchar_table, Qbool_vector, Qhash_table;
+static Lisp_Object Qsubrp, Qmany, Qunevalled;
+
+static Lisp_Object swap_in_symval_forwarding P_ ((Lisp_Object, Lisp_Object));
+
+int most_positive_fixnum, most_negative_fixnum;
+
+
+void
+circular_list_error (list)
+ Lisp_Object list;
+{
+ Fsignal (Qcircular_list, list);
+}
+
Lisp_Object
wrong_type_argument (predicate, value)
{
if (!EQ (Vmocklisp_arguments, Qt))
{
- if (XTYPE (value) == Lisp_String &&
+ if (STRINGP (value) &&
(EQ (predicate, Qintegerp) || EQ (predicate, Qinteger_or_marker_p)))
- return Fstring_to_int (value, Qt);
- if (XTYPE (value) == Lisp_Int && EQ (predicate, Qstringp))
- return Fint_to_string (value);
+ return Fstring_to_number (value, Qnil);
+ if (INTEGERP (value) && EQ (predicate, Qstringp))
+ return Fnumber_to_string (value);
}
+
+ /* If VALUE is not even a valid Lisp object, abort here
+ where we can get a backtrace showing where it came from. */
+ if ((unsigned int) XGCTYPE (value) >= Lisp_Type_Limit)
+ abort ();
+
value = Fsignal (Qwrong_type_argument, Fcons (predicate, Fcons (value, Qnil)));
tem = call1 (predicate, value);
}
return value;
}
+void
pure_write_error ()
{
error ("Attempt to modify read-only object");
Fsignal (Qargs_out_of_range, Fcons (a1, Fcons (a2, Fcons (a3, Qnil))));
}
-Lisp_Object
-make_number (num)
- int num;
-{
- register Lisp_Object val;
- XSET (val, Lisp_Int, num);
- return val;
-}
-
/* On some machines, XINT needs a temporary location.
Here it is, in case it is needed. */
int
sign_extend_lisp_int (num)
- int num;
+ EMACS_INT num;
{
- if (num & (1 << (VALBITS - 1)))
- return num | ((-1) << VALBITS);
+ if (num & (((EMACS_INT) 1) << (VALBITS - 1)))
+ return num | (((EMACS_INT) (-1)) << VALBITS);
else
- return num & ((1 << VALBITS) - 1);
+ return num & ((((EMACS_INT) 1) << VALBITS) - 1);
}
\f
/* Data type predicates */
DEFUN ("eq", Feq, Seq, 2, 2, 0,
- "T if the two args are the same Lisp object.")
+ "Return t if the two args are the same Lisp object.")
(obj1, obj2)
Lisp_Object obj1, obj2;
{
return Qnil;
}
-DEFUN ("null", Fnull, Snull, 1, 1, 0, "T if OBJECT is nil.")
- (obj)
- Lisp_Object obj;
+DEFUN ("null", Fnull, Snull, 1, 1, 0, "Return t if OBJECT is nil.")
+ (object)
+ Lisp_Object object;
{
- if (NILP (obj))
+ if (NILP (object))
return Qt;
return Qnil;
}
-DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "T if OBJECT is a cons cell.")
- (obj)
- Lisp_Object obj;
+DEFUN ("type-of", Ftype_of, Stype_of, 1, 1, 0,
+ "Return a symbol representing the type of OBJECT.\n\
+The symbol returned names the object's basic type;\n\
+for example, (type-of 1) returns `integer'.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Cons)
+ switch (XGCTYPE (object))
+ {
+ case Lisp_Int:
+ return Qinteger;
+
+ case Lisp_Symbol:
+ return Qsymbol;
+
+ case Lisp_String:
+ return Qstring;
+
+ case Lisp_Cons:
+ return Qcons;
+
+ case Lisp_Misc:
+ switch (XMISCTYPE (object))
+ {
+ case Lisp_Misc_Marker:
+ return Qmarker;
+ case Lisp_Misc_Overlay:
+ return Qoverlay;
+ case Lisp_Misc_Float:
+ return Qfloat;
+ }
+ abort ();
+
+ case Lisp_Vectorlike:
+ if (GC_WINDOW_CONFIGURATIONP (object))
+ return Qwindow_configuration;
+ if (GC_PROCESSP (object))
+ return Qprocess;
+ if (GC_WINDOWP (object))
+ return Qwindow;
+ if (GC_SUBRP (object))
+ return Qsubr;
+ if (GC_COMPILEDP (object))
+ return Qcompiled_function;
+ if (GC_BUFFERP (object))
+ return Qbuffer;
+ if (GC_CHAR_TABLE_P (object))
+ return Qchar_table;
+ if (GC_BOOL_VECTOR_P (object))
+ return Qbool_vector;
+ if (GC_FRAMEP (object))
+ return Qframe;
+ if (GC_HASH_TABLE_P (object))
+ return Qhash_table;
+ return Qvector;
+
+ case Lisp_Float:
+ return Qfloat;
+
+ default:
+ abort ();
+ }
+}
+
+DEFUN ("consp", Fconsp, Sconsp, 1, 1, 0, "Return t if OBJECT is a cons cell.")
+ (object)
+ Lisp_Object object;
+{
+ if (CONSP (object))
return Qt;
return Qnil;
}
-DEFUN ("atom", Fatom, Satom, 1, 1, 0, "T if OBJECT is not a cons cell. This includes nil.")
- (obj)
- Lisp_Object obj;
+DEFUN ("atom", Fatom, Satom, 1, 1, 0,
+ "Return t if OBJECT is not a cons cell. This includes nil.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Cons)
+ if (CONSP (object))
return Qnil;
return Qt;
}
-DEFUN ("listp", Flistp, Slistp, 1, 1, 0, "T if OBJECT is a list. This includes nil.")
- (obj)
- Lisp_Object obj;
+DEFUN ("listp", Flistp, Slistp, 1, 1, 0,
+ "Return t if OBJECT is a list. This includes nil.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Cons || NILP (obj))
+ if (CONSP (object) || NILP (object))
return Qt;
return Qnil;
}
-DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0, "T if OBJECT is not a list. Lists include nil.")
- (obj)
- Lisp_Object obj;
+DEFUN ("nlistp", Fnlistp, Snlistp, 1, 1, 0,
+ "Return t if OBJECT is not a list. Lists include nil.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Cons || NILP (obj))
+ if (CONSP (object) || NILP (object))
return Qnil;
return Qt;
}
\f
-DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0, "T if OBJECT is a symbol.")
- (obj)
- Lisp_Object obj;
+DEFUN ("symbolp", Fsymbolp, Ssymbolp, 1, 1, 0,
+ "Return t if OBJECT is a symbol.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Symbol)
+ if (SYMBOLP (object))
return Qt;
return Qnil;
}
-DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0, "T if OBJECT is a vector.")
- (obj)
- Lisp_Object obj;
+/* Define this in C to avoid unnecessarily consing up the symbol
+ name. */
+DEFUN ("keywordp", Fkeywordp, Skeywordp, 1, 1, 0,
+ "Return t if OBJECT is a keyword.\n\
+This means that it is a symbol with a print name beginning with `:'\n\
+interned in the initial obarray.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Vector)
+ if (SYMBOLP (object)
+ && XSYMBOL (object)->name->data[0] == ':'
+ && SYMBOL_INTERNED_IN_INITIAL_OBARRAY_P (object))
return Qt;
return Qnil;
}
-DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0, "T if OBJECT is a string.")
- (obj)
- Lisp_Object obj;
+DEFUN ("vectorp", Fvectorp, Svectorp, 1, 1, 0,
+ "Return t if OBJECT is a vector.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_String)
+ if (VECTORP (object))
return Qt;
return Qnil;
}
-DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "T if OBJECT is an array (string or vector).")
- (obj)
- Lisp_Object obj;
+DEFUN ("stringp", Fstringp, Sstringp, 1, 1, 0,
+ "Return t if OBJECT is a string.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String)
+ if (STRINGP (object))
return Qt;
return Qnil;
}
-DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0,
- "T if OBJECT is a sequence (list or array).")
- (obj)
- register Lisp_Object obj;
+DEFUN ("multibyte-string-p", Fmultibyte_string_p, Smultibyte_string_p,
+ 1, 1, 0, "Return t if OBJECT is a multibyte string.")
+ (object)
+ Lisp_Object object;
{
- if (CONSP (obj) || NILP (obj) ||
- XTYPE (obj) == Lisp_Vector || XTYPE (obj) == Lisp_String)
+ if (STRINGP (object) && STRING_MULTIBYTE (object))
return Qt;
return Qnil;
}
-DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "T if OBJECT is an editor buffer.")
- (obj)
- Lisp_Object obj;
+DEFUN ("char-table-p", Fchar_table_p, Schar_table_p, 1, 1, 0,
+ "Return t if OBJECT is a char-table.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Buffer)
+ if (CHAR_TABLE_P (object))
return Qt;
return Qnil;
}
-DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "T if OBJECT is a marker (editor pointer).")
- (obj)
- Lisp_Object obj;
+DEFUN ("vector-or-char-table-p", Fvector_or_char_table_p,
+ Svector_or_char_table_p, 1, 1, 0,
+ "Return t if OBJECT is a char-table or vector.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Marker)
+ if (VECTORP (object) || CHAR_TABLE_P (object))
return Qt;
return Qnil;
}
-DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0,
- "T if OBJECT is an integer or a marker (editor pointer).")
- (obj)
- register Lisp_Object obj;
+DEFUN ("bool-vector-p", Fbool_vector_p, Sbool_vector_p, 1, 1, 0, "Return t if OBJECT is a bool-vector.")
+ (object)
+ Lisp_Object object;
+{
+ if (BOOL_VECTOR_P (object))
+ return Qt;
+ return Qnil;
+}
+
+DEFUN ("arrayp", Farrayp, Sarrayp, 1, 1, 0, "Return t if OBJECT is an array (string or vector).")
+ (object)
+ Lisp_Object object;
+{
+ if (VECTORP (object) || STRINGP (object)
+ || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object))
+ return Qt;
+ return Qnil;
+}
+
+DEFUN ("sequencep", Fsequencep, Ssequencep, 1, 1, 0,
+ "Return t if OBJECT is a sequence (list or array).")
+ (object)
+ register Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Marker || XTYPE (obj) == Lisp_Int)
+ if (CONSP (object) || NILP (object) || VECTORP (object) || STRINGP (object)
+ || CHAR_TABLE_P (object) || BOOL_VECTOR_P (object))
return Qt;
return Qnil;
}
-DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "T if OBJECT is a built-in function.")
- (obj)
- Lisp_Object obj;
+DEFUN ("bufferp", Fbufferp, Sbufferp, 1, 1, 0, "Return t if OBJECT is an editor buffer.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Subr)
+ if (BUFFERP (object))
return Qt;
return Qnil;
}
-DEFUN ("compiled-function-p", Fcompiled_function_p, Scompiled_function_p,
- 1, 1, 0, "T if OBJECT is a compiled function object.")
- (obj)
- Lisp_Object obj;
+DEFUN ("markerp", Fmarkerp, Smarkerp, 1, 1, 0, "Return t if OBJECT is a marker (editor pointer).")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Compiled)
+ if (MARKERP (object))
return Qt;
return Qnil;
}
-DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0, "T if OBJECT is a character (a number) or a string.")
- (obj)
- register Lisp_Object obj;
+DEFUN ("subrp", Fsubrp, Ssubrp, 1, 1, 0, "Return t if OBJECT is a built-in function.")
+ (object)
+ Lisp_Object object;
+{
+ if (SUBRP (object))
+ return Qt;
+ return Qnil;
+}
+
+DEFUN ("byte-code-function-p", Fbyte_code_function_p, Sbyte_code_function_p,
+ 1, 1, 0, "Return t if OBJECT is a byte-compiled function object.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Int || XTYPE (obj) == Lisp_String)
+ if (COMPILEDP (object))
+ return Qt;
+ return Qnil;
+}
+
+DEFUN ("char-or-string-p", Fchar_or_string_p, Schar_or_string_p, 1, 1, 0,
+ "Return t if OBJECT is a character (an integer) or a string.")
+ (object)
+ register Lisp_Object object;
+{
+ if (INTEGERP (object) || STRINGP (object))
return Qt;
return Qnil;
}
\f
-DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "T if OBJECT is a number.")
- (obj)
- Lisp_Object obj;
+DEFUN ("integerp", Fintegerp, Sintegerp, 1, 1, 0, "Return t if OBJECT is an integer.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Int)
+ if (INTEGERP (object))
return Qt;
return Qnil;
}
-DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0, "T if OBJECT is a nonnegative number.")
- (obj)
- Lisp_Object obj;
+DEFUN ("integer-or-marker-p", Finteger_or_marker_p, Sinteger_or_marker_p, 1, 1, 0,
+ "Return t if OBJECT is an integer or a marker (editor pointer).")
+ (object)
+ register Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Int && XINT (obj) >= 0)
+ if (MARKERP (object) || INTEGERP (object))
return Qt;
return Qnil;
}
-#ifdef LISP_FLOAT_TYPE
-DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0,
- "T if OBJECT is a floating point number.")
- (obj)
- Lisp_Object obj;
+DEFUN ("natnump", Fnatnump, Snatnump, 1, 1, 0,
+ "Return t if OBJECT is a nonnegative integer.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Float)
+ if (NATNUMP (object))
return Qt;
return Qnil;
}
DEFUN ("numberp", Fnumberp, Snumberp, 1, 1, 0,
- "T if OBJECT is a number (floating point or integer).")
- (obj)
- Lisp_Object obj;
+ "Return t if OBJECT is a number (floating point or integer).")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Float || XTYPE (obj) == Lisp_Int)
+ if (NUMBERP (object))
return Qt;
- return Qnil;
+ else
+ return Qnil;
}
DEFUN ("number-or-marker-p", Fnumber_or_marker_p,
Snumber_or_marker_p, 1, 1, 0,
- "T if OBJECT is a number or a marker.")
- (obj)
- Lisp_Object obj;
+ "Return t if OBJECT is a number or a marker.")
+ (object)
+ Lisp_Object object;
+{
+ if (NUMBERP (object) || MARKERP (object))
+ return Qt;
+ return Qnil;
+}
+
+DEFUN ("floatp", Ffloatp, Sfloatp, 1, 1, 0,
+ "Return t if OBJECT is a floating point number.")
+ (object)
+ Lisp_Object object;
{
- if (XTYPE (obj) == Lisp_Float
- || XTYPE (obj) == Lisp_Int
- || XTYPE (obj) == Lisp_Marker)
+ if (FLOATP (object))
return Qt;
return Qnil;
}
-#endif /* LISP_FLOAT_TYPE */
+
\f
/* Extract and set components of lists */
DEFUN ("car", Fcar, Scar, 1, 1, 0,
- "Return the car of CONSCELL. If arg is nil, return nil.\n\
+ "Return the car of LIST. If arg is nil, return nil.\n\
Error if arg is not nil and not a cons cell. See also `car-safe'.")
(list)
register Lisp_Object list;
{
while (1)
{
- if (XTYPE (list) == Lisp_Cons)
- return XCONS (list)->car;
+ if (CONSP (list))
+ return XCAR (list);
else if (EQ (list, Qnil))
return Qnil;
else
(object)
Lisp_Object object;
{
- if (XTYPE (object) == Lisp_Cons)
- return XCONS (object)->car;
+ if (CONSP (object))
+ return XCAR (object);
else
return Qnil;
}
DEFUN ("cdr", Fcdr, Scdr, 1, 1, 0,
- "Return the cdr of CONSCELL. If arg is nil, return nil.\n\
+ "Return the cdr of LIST. If arg is nil, return nil.\n\
Error if arg is not nil and not a cons cell. See also `cdr-safe'.")
(list)
{
while (1)
{
- if (XTYPE (list) == Lisp_Cons)
- return XCONS (list)->cdr;
+ if (CONSP (list))
+ return XCDR (list);
else if (EQ (list, Qnil))
return Qnil;
else
}
DEFUN ("cdr-safe", Fcdr_safe, Scdr_safe, 1, 1, 0,
- "Return the cdr of OBJECT if it is a cons cell, or else nil.")
+ "Return the cdr of OBJECT if it is a cons cell, or else nil.")
(object)
Lisp_Object object;
{
- if (XTYPE (object) == Lisp_Cons)
- return XCONS (object)->cdr;
+ if (CONSP (object))
+ return XCDR (object);
else
return Qnil;
}
DEFUN ("setcar", Fsetcar, Ssetcar, 2, 2, 0,
- "Set the car of CONSCELL to be NEWCAR. Returns NEWCAR.")
+ "Set the car of CELL to be NEWCAR. Returns NEWCAR.")
(cell, newcar)
register Lisp_Object cell, newcar;
{
- if (XTYPE (cell) != Lisp_Cons)
+ if (!CONSP (cell))
cell = wrong_type_argument (Qconsp, cell);
CHECK_IMPURE (cell);
- XCONS (cell)->car = newcar;
+ XSETCAR (cell, newcar);
return newcar;
}
DEFUN ("setcdr", Fsetcdr, Ssetcdr, 2, 2, 0,
- "Set the cdr of CONSCELL to be NEWCDR. Returns NEWCDR.")
+ "Set the cdr of CELL to be NEWCDR. Returns NEWCDR.")
(cell, newcdr)
register Lisp_Object cell, newcdr;
{
- if (XTYPE (cell) != Lisp_Cons)
+ if (!CONSP (cell))
cell = wrong_type_argument (Qconsp, cell);
CHECK_IMPURE (cell);
- XCONS (cell)->cdr = newcdr;
+ XSETCDR (cell, newcdr);
return newcdr;
}
\f
/* Extract and set components of symbols */
-DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "T if SYMBOL's value is not void.")
- (sym)
- register Lisp_Object sym;
+DEFUN ("boundp", Fboundp, Sboundp, 1, 1, 0, "Return t if SYMBOL's value is not void.")
+ (symbol)
+ register Lisp_Object symbol;
{
Lisp_Object valcontents;
- CHECK_SYMBOL (sym, 0);
+ CHECK_SYMBOL (symbol, 0);
- valcontents = XSYMBOL (sym)->value;
+ valcontents = SYMBOL_VALUE (symbol);
-#ifdef SWITCH_ENUM_BUG
- switch ((int) XTYPE (valcontents))
-#else
- switch (XTYPE (valcontents))
-#endif
- {
- case Lisp_Buffer_Local_Value:
- case Lisp_Some_Buffer_Local_Value:
- valcontents = swap_in_symval_forwarding (sym, valcontents);
- }
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ valcontents = swap_in_symval_forwarding (symbol, valcontents);
- return (XTYPE (valcontents) == Lisp_Void || EQ (valcontents, Qunbound)
- ? Qnil : Qt);
+ return (EQ (valcontents, Qunbound) ? Qnil : Qt);
}
-DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "T if SYMBOL's function definition is not void.")
- (sym)
- register Lisp_Object sym;
+DEFUN ("fboundp", Ffboundp, Sfboundp, 1, 1, 0, "Return t if SYMBOL's function definition is not void.")
+ (symbol)
+ register Lisp_Object symbol;
{
- CHECK_SYMBOL (sym, 0);
- return (XTYPE (XSYMBOL (sym)->function) == Lisp_Void
- || EQ (XSYMBOL (sym)->function, Qunbound))
- ? Qnil : Qt;
+ CHECK_SYMBOL (symbol, 0);
+ return (EQ (XSYMBOL (symbol)->function, Qunbound) ? Qnil : Qt);
}
DEFUN ("makunbound", Fmakunbound, Smakunbound, 1, 1, 0, "Make SYMBOL's value be void.")
- (sym)
- register Lisp_Object sym;
+ (symbol)
+ register Lisp_Object symbol;
{
- CHECK_SYMBOL (sym, 0);
- if (NILP (sym) || EQ (sym, Qt))
- return Fsignal (Qsetting_constant, Fcons (sym, Qnil));
- Fset (sym, Qunbound);
- return sym;
+ CHECK_SYMBOL (symbol, 0);
+ if (XSYMBOL (symbol)->constant)
+ return Fsignal (Qsetting_constant, Fcons (symbol, Qnil));
+ Fset (symbol, Qunbound);
+ return symbol;
}
DEFUN ("fmakunbound", Ffmakunbound, Sfmakunbound, 1, 1, 0, "Make SYMBOL's function definition be void.")
- (sym)
- register Lisp_Object sym;
+ (symbol)
+ register Lisp_Object symbol;
{
- CHECK_SYMBOL (sym, 0);
- XSYMBOL (sym)->function = Qunbound;
- return sym;
+ CHECK_SYMBOL (symbol, 0);
+ if (NILP (symbol) || EQ (symbol, Qt))
+ return Fsignal (Qsetting_constant, Fcons (symbol, Qnil));
+ XSYMBOL (symbol)->function = Qunbound;
+ return symbol;
}
DEFUN ("symbol-function", Fsymbol_function, Ssymbol_function, 1, 1, 0,
}
DEFUN ("symbol-plist", Fsymbol_plist, Ssymbol_plist, 1, 1, 0, "Return SYMBOL's property list.")
- (sym)
- register Lisp_Object sym;
+ (symbol)
+ register Lisp_Object symbol;
{
- CHECK_SYMBOL (sym, 0);
- return XSYMBOL (sym)->plist;
+ CHECK_SYMBOL (symbol, 0);
+ return XSYMBOL (symbol)->plist;
}
DEFUN ("symbol-name", Fsymbol_name, Ssymbol_name, 1, 1, 0, "Return SYMBOL's name, a string.")
- (sym)
- register Lisp_Object sym;
+ (symbol)
+ register Lisp_Object symbol;
{
register Lisp_Object name;
- CHECK_SYMBOL (sym, 0);
- XSET (name, Lisp_String, XSYMBOL (sym)->name);
+ CHECK_SYMBOL (symbol, 0);
+ XSETSTRING (name, XSYMBOL (symbol)->name);
return name;
}
DEFUN ("fset", Ffset, Sfset, 2, 2, 0,
- "Set SYMBOL's function definition to NEWVAL, and return NEWVAL.")
- (sym, newdef)
- register Lisp_Object sym, newdef;
+ "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.")
+ (symbol, definition)
+ register Lisp_Object symbol, definition;
{
- CHECK_SYMBOL (sym, 0);
- if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (sym)->function, Qunbound))
- Vautoload_queue = Fcons (Fcons (sym, XSYMBOL (sym)->function),
+ CHECK_SYMBOL (symbol, 0);
+ if (NILP (symbol) || EQ (symbol, Qt))
+ return Fsignal (Qsetting_constant, Fcons (symbol, Qnil));
+ if (!NILP (Vautoload_queue) && !EQ (XSYMBOL (symbol)->function, Qunbound))
+ Vautoload_queue = Fcons (Fcons (symbol, XSYMBOL (symbol)->function),
Vautoload_queue);
- XSYMBOL (sym)->function = newdef;
- return newdef;
+ XSYMBOL (symbol)->function = definition;
+ /* Handle automatic advice activation */
+ if (CONSP (XSYMBOL (symbol)->plist) && !NILP (Fget (symbol, Qad_advice_info)))
+ {
+ call2 (Qad_activate_internal, symbol, Qnil);
+ definition = XSYMBOL (symbol)->function;
+ }
+ return definition;
+}
+
+DEFUN ("defalias", Fdefalias, Sdefalias, 2, 2, 0,
+ "Set SYMBOL's function definition to DEFINITION, and return DEFINITION.\n\
+Associates the function with the current load file, if any.")
+ (symbol, definition)
+ register Lisp_Object symbol, definition;
+{
+ definition = Ffset (symbol, definition);
+ LOADHIST_ATTACH (symbol);
+ return definition;
}
DEFUN ("setplist", Fsetplist, Ssetplist, 2, 2, 0,
"Set SYMBOL's property list to NEWVAL, and return NEWVAL.")
- (sym, newplist)
- register Lisp_Object sym, newplist;
+ (symbol, newplist)
+ register Lisp_Object symbol, newplist;
{
- CHECK_SYMBOL (sym, 0);
- XSYMBOL (sym)->plist = newplist;
+ CHECK_SYMBOL (symbol, 0);
+ XSYMBOL (symbol)->plist = newplist;
return newplist;
}
+DEFUN ("subr-arity", Fsubr_arity, Ssubr_arity, 1, 1, 0,
+ "Return minimum and maximum number of args allowed for SUBR.\n\
+SUBR must be a built-in function.\n\
+The returned value is a pair (MIN . MAX). MIN is the minimum number\n\
+of args. MAX is the maximum number or the symbol `many', for a\n\
+function with `&rest' args, or `unevalled' for a special form.")
+ (subr)
+ Lisp_Object subr;
+{
+ short minargs, maxargs;
+ if (!SUBRP (subr))
+ wrong_type_argument (Qsubrp, subr);
+ minargs = XSUBR (subr)->min_args;
+ maxargs = XSUBR (subr)->max_args;
+ if (maxargs == MANY)
+ return Fcons (make_number (minargs), Qmany);
+ else if (maxargs == UNEVALLED)
+ return Fcons (make_number (minargs), Qunevalled);
+ else
+ return Fcons (make_number (minargs), make_number (maxargs));
+}
+
+DEFUN ("subr-interactive-form", Fsubr_interactive_form, Ssubr_interactive_form, 1, 1, 0,
+ "Return the interactive form of SUBR or nil if none.\n\
+SUBR must be a built-in function. Value, if non-nil, is a list\n\
+\(interactive SPEC).")
+ (subr)
+ Lisp_Object subr;
+{
+ if (!SUBRP (subr))
+ wrong_type_argument (Qsubrp, subr);
+ if (XSUBR (subr)->prompt)
+ return list2 (Qinteractive, build_string (XSUBR (subr)->prompt));
+ return Qnil;
+}
+
\f
-/* Getting and setting values of symbols */
+/***********************************************************************
+ Getting and Setting Values of Symbols
+ ***********************************************************************/
+
+/* Return the symbol holding SYMBOL's value. Signal
+ `cyclic-variable-indirection' if SYMBOL's chain of variable
+ indirections contains a loop. */
+
+Lisp_Object
+indirect_variable (symbol)
+ Lisp_Object symbol;
+{
+ Lisp_Object tortoise, hare;
+
+ hare = tortoise = symbol;
+
+ while (XSYMBOL (hare)->indirect_variable)
+ {
+ hare = XSYMBOL (hare)->value;
+ if (!XSYMBOL (hare)->indirect_variable)
+ break;
+
+ hare = XSYMBOL (hare)->value;
+ tortoise = XSYMBOL (tortoise)->value;
+
+ if (EQ (hare, tortoise))
+ Fsignal (Qcyclic_variable_indirection, Fcons (symbol, Qnil));
+ }
+
+ return hare;
+}
+
+
+DEFUN ("indirect-variable", Findirect_variable, Sindirect_variable, 1, 1, 0,
+ "Return the variable at the end of OBJECT's variable chain.\n\
+If OBJECT is a symbol, follow all variable indirections and return the final\n\
+variable. If OBJECT is not a symbol, just return it.\n\
+Signal a cyclic-variable-indirection error if there is a loop in the\n\
+variable chain of symbols.")
+ (object)
+ Lisp_Object object;
+{
+ if (SYMBOLP (object))
+ object = indirect_variable (object);
+ return object;
+}
+
/* Given the raw contents of a symbol value cell,
return the Lisp value of the symbol.
register Lisp_Object valcontents;
{
register Lisp_Object val;
-#ifdef SWITCH_ENUM_BUG
- switch ((int) XTYPE (valcontents))
-#else
- switch (XTYPE (valcontents))
-#endif
- {
- case Lisp_Intfwd:
- XSET (val, Lisp_Int, *XINTPTR (valcontents));
- return val;
+ int offset;
+ if (MISCP (valcontents))
+ switch (XMISCTYPE (valcontents))
+ {
+ case Lisp_Misc_Intfwd:
+ XSETINT (val, *XINTFWD (valcontents)->intvar);
+ return val;
- case Lisp_Boolfwd:
- if (*XINTPTR (valcontents))
- return Qt;
- return Qnil;
+ case Lisp_Misc_Boolfwd:
+ return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil);
- case Lisp_Objfwd:
- return *XOBJFWD (valcontents);
+ case Lisp_Misc_Objfwd:
+ return *XOBJFWD (valcontents)->objvar;
- case Lisp_Buffer_Objfwd:
- return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer);
- }
+ case Lisp_Misc_Buffer_Objfwd:
+ offset = XBUFFER_OBJFWD (valcontents)->offset;
+ return PER_BUFFER_VALUE (current_buffer, offset);
+
+ case Lisp_Misc_Kboard_Objfwd:
+ offset = XKBOARD_OBJFWD (valcontents)->offset;
+ return *(Lisp_Object *)(offset + (char *)current_kboard);
+ }
return valcontents;
}
-/* Store NEWVAL into SYM, where VALCONTENTS is found in the value cell
- of SYM. If SYM is buffer-local, VALCONTENTS should be the
+/* Store NEWVAL into SYMBOL, where VALCONTENTS is found in the value cell
+ of SYMBOL. If SYMBOL is buffer-local, VALCONTENTS should be the
buffer-independent contents of the value cell: forwarded just one
- step past the buffer-localness. */
+ step past the buffer-localness.
+
+ BUF non-zero means set the value in buffer BUF instead of the
+ current buffer. This only plays a role for per-buffer variables. */
void
-store_symval_forwarding (sym, valcontents, newval)
- Lisp_Object sym;
+store_symval_forwarding (symbol, valcontents, newval, buf)
+ Lisp_Object symbol;
register Lisp_Object valcontents, newval;
+ struct buffer *buf;
{
-#ifdef SWITCH_ENUM_BUG
- switch ((int) XTYPE (valcontents))
-#else
- switch (XTYPE (valcontents))
-#endif
+ switch (SWITCH_ENUM_CAST (XTYPE (valcontents)))
{
- case Lisp_Intfwd:
- CHECK_NUMBER (newval, 1);
- *XINTPTR (valcontents) = XINT (newval);
- break;
+ case Lisp_Misc:
+ switch (XMISCTYPE (valcontents))
+ {
+ case Lisp_Misc_Intfwd:
+ CHECK_NUMBER (newval, 1);
+ *XINTFWD (valcontents)->intvar = XINT (newval);
+ if (*XINTFWD (valcontents)->intvar != XINT (newval))
+ error ("Value out of range for variable `%s'",
+ XSYMBOL (symbol)->name->data);
+ break;
- case Lisp_Boolfwd:
- *XINTPTR (valcontents) = NILP(newval) ? 0 : 1;
- break;
+ case Lisp_Misc_Boolfwd:
+ *XBOOLFWD (valcontents)->boolvar = NILP (newval) ? 0 : 1;
+ break;
- case Lisp_Objfwd:
- *XOBJFWD (valcontents) = newval;
- break;
+ case Lisp_Misc_Objfwd:
+ *XOBJFWD (valcontents)->objvar = newval;
+ break;
- case Lisp_Buffer_Objfwd:
- *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer) = newval;
+ case Lisp_Misc_Buffer_Objfwd:
+ {
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ Lisp_Object type;
+
+ type = PER_BUFFER_TYPE (offset);
+ if (XINT (type) == -1)
+ error ("Variable %s is read-only", XSYMBOL (symbol)->name->data);
+
+ if (! NILP (type) && ! NILP (newval)
+ && XTYPE (newval) != XINT (type))
+ buffer_slot_type_mismatch (offset);
+
+ if (buf == NULL)
+ buf = current_buffer;
+ PER_BUFFER_VALUE (buf, offset) = newval;
+ }
+ break;
+
+ case Lisp_Misc_Kboard_Objfwd:
+ {
+ char *base = (char *) current_kboard;
+ char *p = base + XKBOARD_OBJFWD (valcontents)->offset;
+ *(Lisp_Object *) p = newval;
+ }
+ break;
+
+ default:
+ goto def;
+ }
break;
default:
- valcontents = XSYMBOL (sym)->value;
- if (XTYPE (valcontents) == Lisp_Buffer_Local_Value
- || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
- XCONS (XSYMBOL (sym)->value)->car = newval;
+ def:
+ valcontents = SYMBOL_VALUE (symbol);
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ XBUFFER_LOCAL_VALUE (valcontents)->realvalue = newval;
else
- XSYMBOL (sym)->value = newval;
+ SET_SYMBOL_VALUE (symbol, newval);
}
}
-/* Set up the buffer-local symbol SYM for validity in the current
- buffer. VALCONTENTS is the contents of its value cell.
- Return the value forwarded one step past the buffer-local indicator. */
+/* Set up SYMBOL to refer to its global binding.
+ This makes it safe to alter the status of other bindings. */
-static Lisp_Object
-swap_in_symval_forwarding (sym, valcontents)
- Lisp_Object sym, valcontents;
-{
- /* valcontents is a list
- (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)).
-
- CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's
- local_var_alist, that being the element whose car is this variable.
- Or it can be a pointer to the (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER
- does not have an element in its alist for this variable.
-
- If the current buffer is not BUFFER, we store the current REALVALUE value into
- CURRENT-ALIST-ELEMENT, then find the appropriate alist element for
- the buffer now current and set up CURRENT-ALIST-ELEMENT.
- Then we set REALVALUE out of that element, and store into BUFFER.
- Note that REALVALUE can be a forwarding pointer. */
+void
+swap_in_global_binding (symbol)
+ Lisp_Object symbol;
+{
+ Lisp_Object valcontents, cdr;
+
+ valcontents = SYMBOL_VALUE (symbol);
+ if (!BUFFER_LOCAL_VALUEP (valcontents)
+ && !SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ abort ();
+ cdr = XBUFFER_LOCAL_VALUE (valcontents)->cdr;
+
+ /* Unload the previously loaded binding. */
+ Fsetcdr (XCAR (cdr),
+ do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue));
+
+ /* Select the global binding in the symbol. */
+ XSETCAR (cdr, cdr);
+ store_symval_forwarding (symbol, valcontents, XCDR (cdr), NULL);
+
+ /* Indicate that the global binding is set up now. */
+ XBUFFER_LOCAL_VALUE (valcontents)->frame = Qnil;
+ XBUFFER_LOCAL_VALUE (valcontents)->buffer = Qnil;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0;
+}
+
+/* Set up the buffer-local symbol SYMBOL for validity in the current buffer.
+ VALCONTENTS is the contents of its value cell,
+ which points to a struct Lisp_Buffer_Local_Value.
+
+ Return the value forwarded one step past the buffer-local stage.
+ This could be another forwarding pointer. */
+static Lisp_Object
+swap_in_symval_forwarding (symbol, valcontents)
+ Lisp_Object symbol, valcontents;
+{
register Lisp_Object tem1;
- tem1 = XCONS (XCONS (valcontents)->cdr)->car;
+
+ tem1 = XBUFFER_LOCAL_VALUE (valcontents)->buffer;
- if (NILP (tem1) || current_buffer != XBUFFER (tem1))
+ if (NILP (tem1)
+ || current_buffer != XBUFFER (tem1)
+ || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame
+ && ! EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame)))
{
- tem1 = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car;
- Fsetcdr (tem1, do_symval_forwarding (XCONS (valcontents)->car));
- tem1 = assq_no_quit (sym, current_buffer->local_var_alist);
+ if (XSYMBOL (symbol)->indirect_variable)
+ symbol = indirect_variable (symbol);
+
+ /* Unload the previously loaded binding. */
+ tem1 = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
+ Fsetcdr (tem1,
+ do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue));
+ /* Choose the new binding. */
+ tem1 = assq_no_quit (symbol, current_buffer->local_var_alist);
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0;
if (NILP (tem1))
- tem1 = XCONS (XCONS (valcontents)->cdr)->cdr;
- XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1;
- XSET (XCONS (XCONS (valcontents)->cdr)->car, Lisp_Buffer, current_buffer);
- store_symval_forwarding (sym, XCONS (valcontents)->car, Fcdr (tem1));
+ {
+ if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame)
+ tem1 = assq_no_quit (symbol, XFRAME (selected_frame)->param_alist);
+ if (! NILP (tem1))
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1;
+ else
+ tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr;
+ }
+ else
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1;
+
+ /* Load the new binding. */
+ XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, tem1);
+ XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, current_buffer);
+ XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame;
+ store_symval_forwarding (symbol,
+ XBUFFER_LOCAL_VALUE (valcontents)->realvalue,
+ Fcdr (tem1), NULL);
}
- return XCONS (valcontents)->car;
+ return XBUFFER_LOCAL_VALUE (valcontents)->realvalue;
}
\f
/* Find the value of a symbol, returning Qunbound if it's not bound.
This is helpful for code which just wants to get a variable's value
- if it has one, without signalling an error.
+ if it has one, without signaling an error.
Note that it must not be possible to quit
within this function. Great care is required for this. */
Lisp_Object
-find_symbol_value (sym)
- Lisp_Object sym;
+find_symbol_value (symbol)
+ Lisp_Object symbol;
{
- register Lisp_Object valcontents, tem1;
+ register Lisp_Object valcontents;
register Lisp_Object val;
- CHECK_SYMBOL (sym, 0);
- valcontents = XSYMBOL (sym)->value;
+
+ CHECK_SYMBOL (symbol, 0);
+ valcontents = SYMBOL_VALUE (symbol);
- retry:
-#ifdef SWITCH_ENUM_BUG
- switch ((int) XTYPE (valcontents))
-#else
- switch (XTYPE (valcontents))
-#endif
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ valcontents = swap_in_symval_forwarding (symbol, valcontents);
+
+ if (MISCP (valcontents))
{
- case Lisp_Buffer_Local_Value:
- case Lisp_Some_Buffer_Local_Value:
- valcontents = swap_in_symval_forwarding (sym, valcontents);
- goto retry;
+ switch (XMISCTYPE (valcontents))
+ {
+ case Lisp_Misc_Intfwd:
+ XSETINT (val, *XINTFWD (valcontents)->intvar);
+ return val;
- case Lisp_Intfwd:
- XSET (val, Lisp_Int, *XINTPTR (valcontents));
- return val;
+ case Lisp_Misc_Boolfwd:
+ return (*XBOOLFWD (valcontents)->boolvar ? Qt : Qnil);
- case Lisp_Boolfwd:
- if (*XINTPTR (valcontents))
- return Qt;
- return Qnil;
+ case Lisp_Misc_Objfwd:
+ return *XOBJFWD (valcontents)->objvar;
- case Lisp_Objfwd:
- return *XOBJFWD (valcontents);
+ case Lisp_Misc_Buffer_Objfwd:
+ return PER_BUFFER_VALUE (current_buffer,
+ XBUFFER_OBJFWD (valcontents)->offset);
- case Lisp_Buffer_Objfwd:
- return *(Lisp_Object *)(XUINT (valcontents) + (char *)current_buffer);
-
- case Lisp_Void:
- return Qunbound;
+ case Lisp_Misc_Kboard_Objfwd:
+ return *(Lisp_Object *)(XKBOARD_OBJFWD (valcontents)->offset
+ + (char *)current_kboard);
+ }
}
return valcontents;
DEFUN ("symbol-value", Fsymbol_value, Ssymbol_value, 1, 1, 0,
"Return SYMBOL's value. Error if that is void.")
- (sym)
- Lisp_Object sym;
+ (symbol)
+ Lisp_Object symbol;
{
- Lisp_Object val = find_symbol_value (sym);
+ Lisp_Object val;
+ val = find_symbol_value (symbol);
if (EQ (val, Qunbound))
- return Fsignal (Qvoid_variable, Fcons (sym, Qnil));
+ return Fsignal (Qvoid_variable, Fcons (symbol, Qnil));
else
return val;
}
DEFUN ("set", Fset, Sset, 2, 2, 0,
"Set SYMBOL's value to NEWVAL, and return NEWVAL.")
- (sym, newval)
- register Lisp_Object sym, newval;
+ (symbol, newval)
+ register Lisp_Object symbol, newval;
{
- int voide = (XTYPE (newval) == Lisp_Void || EQ (newval, Qunbound));
+ return set_internal (symbol, newval, current_buffer, 0);
+}
-#ifndef RTPC_REGISTER_BUG
- register Lisp_Object valcontents, tem1, current_alist_element;
-#else /* RTPC_REGISTER_BUG */
- register Lisp_Object tem1;
- Lisp_Object valcontents, current_alist_element;
-#endif /* RTPC_REGISTER_BUG */
+/* Return 1 if SYMBOL currently has a let-binding
+ which was made in the buffer that is now current. */
+
+static int
+let_shadows_buffer_binding_p (symbol)
+ Lisp_Object symbol;
+{
+ struct specbinding *p;
- CHECK_SYMBOL (sym, 0);
- if (NILP (sym) || EQ (sym, Qt))
- return Fsignal (Qsetting_constant, Fcons (sym, Qnil));
- valcontents = XSYMBOL (sym)->value;
+ for (p = specpdl_ptr - 1; p >= specpdl; p--)
+ if (p->func == NULL
+ && CONSP (p->symbol))
+ {
+ Lisp_Object let_bound_symbol = XCAR (p->symbol);
+ if ((EQ (symbol, let_bound_symbol)
+ || (XSYMBOL (let_bound_symbol)->indirect_variable
+ && EQ (symbol, indirect_variable (let_bound_symbol))))
+ && XBUFFER (XCDR (XCDR (p->symbol))) == current_buffer)
+ break;
+ }
- if (XTYPE (valcontents) == Lisp_Buffer_Objfwd)
+ return p >= specpdl;
+}
+
+/* Store the value NEWVAL into SYMBOL.
+ If buffer-locality is an issue, BUF specifies which buffer to use.
+ (0 stands for the current buffer.)
+
+ If BINDFLAG is zero, then if this symbol is supposed to become
+ local in every buffer where it is set, then we make it local.
+ If BINDFLAG is nonzero, we don't do that. */
+
+Lisp_Object
+set_internal (symbol, newval, buf, bindflag)
+ register Lisp_Object symbol, newval;
+ struct buffer *buf;
+ int bindflag;
+{
+ int voide = EQ (newval, Qunbound);
+
+ register Lisp_Object valcontents, innercontents, tem1, current_alist_element;
+
+ if (buf == 0)
+ buf = current_buffer;
+
+ /* If restoring in a dead buffer, do nothing. */
+ if (NILP (buf->name))
+ return newval;
+
+ CHECK_SYMBOL (symbol, 0);
+ if (SYMBOL_CONSTANT_P (symbol)
+ && (NILP (Fkeywordp (symbol))
+ || !EQ (newval, SYMBOL_VALUE (symbol))))
+ return Fsignal (Qsetting_constant, Fcons (symbol, Qnil));
+
+ innercontents = valcontents = SYMBOL_VALUE (symbol);
+
+ if (BUFFER_OBJFWDP (valcontents))
{
- register int idx = XUINT (valcontents);
- register int mask = *(int *)(idx + (char *) &buffer_local_flags);
- if (mask > 0)
- current_buffer->local_var_flags |= mask;
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ int idx = PER_BUFFER_IDX (offset);
+ if (idx > 0
+ && !bindflag
+ && !let_shadows_buffer_binding_p (symbol))
+ SET_PER_BUFFER_VALUE_P (buf, idx, 1);
}
-
- if (XTYPE (valcontents) == Lisp_Buffer_Local_Value
- || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
+ else if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
{
- /* valcontents is a list
- (REALVALUE BUFFER CURRENT-ALIST-ELEMENT . DEFAULT-VALUE)).
-
- CURRENT-ALIST-ELEMENT is a pointer to an element of BUFFER's
- local_var_alist, that being the element whose car is this variable.
- Or it can be a pointer to the (CURRENT-ALIST-ELEMENT . DEFAULT-VALUE), if BUFFER
- does not have an element in its alist for this variable.
-
- If the current buffer is not BUFFER, we store the current REALVALUE value into
- CURRENT-ALIST-ELEMENT, then find the appropriate alist element for
- the buffer now current and set up CURRENT-ALIST-ELEMENT.
- Then we set REALVALUE out of that element, and store into BUFFER.
- Note that REALVALUE can be a forwarding pointer. */
-
- current_alist_element = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car;
- if (current_buffer != ((XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
- ? XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)
- : XBUFFER (XCONS (current_alist_element)->car)))
+ /* valcontents is a struct Lisp_Buffer_Local_Value. */
+ if (XSYMBOL (symbol)->indirect_variable)
+ symbol = indirect_variable (symbol);
+
+ /* What binding is loaded right now? */
+ current_alist_element
+ = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
+
+ /* If the current buffer is not the buffer whose binding is
+ loaded, or if there may be frame-local bindings and the frame
+ isn't the right one, or if it's a Lisp_Buffer_Local_Value and
+ the default binding is loaded, the loaded binding may be the
+ wrong one. */
+ if (!BUFFERP (XBUFFER_LOCAL_VALUE (valcontents)->buffer)
+ || buf != XBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer)
+ || (XBUFFER_LOCAL_VALUE (valcontents)->check_frame
+ && !EQ (selected_frame, XBUFFER_LOCAL_VALUE (valcontents)->frame))
+ || (BUFFER_LOCAL_VALUEP (valcontents)
+ && EQ (XCAR (current_alist_element),
+ current_alist_element)))
{
- Fsetcdr (current_alist_element, do_symval_forwarding (XCONS (valcontents)->car));
+ /* The currently loaded binding is not necessarily valid.
+ We need to unload it, and choose a new binding. */
+
+ /* Write out `realvalue' to the old loaded binding. */
+ Fsetcdr (current_alist_element,
+ do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue));
+
+ /* Find the new binding. */
+ tem1 = Fassq (symbol, buf->local_var_alist);
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 1;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 0;
- tem1 = Fassq (sym, current_buffer->local_var_alist);
if (NILP (tem1))
- /* This buffer sees the default value still.
- If type is Lisp_Some_Buffer_Local_Value, set the default value.
- If type is Lisp_Buffer_Local_Value, give this buffer a local value
- and set that. */
- if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
- tem1 = XCONS (XCONS (valcontents)->cdr)->cdr;
- else
- {
- tem1 = Fcons (sym, Fcdr (current_alist_element));
- current_buffer->local_var_alist = Fcons (tem1, current_buffer->local_var_alist);
- }
- XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car = tem1;
- XSET (XCONS (XCONS (valcontents)->cdr)->car, Lisp_Buffer, current_buffer);
+ {
+ /* This buffer still sees the default value. */
+
+ /* If the variable is a Lisp_Some_Buffer_Local_Value,
+ or if this is `let' rather than `set',
+ make CURRENT-ALIST-ELEMENT point to itself,
+ indicating that we're seeing the default value.
+ Likewise if the variable has been let-bound
+ in the current buffer. */
+ if (bindflag || SOME_BUFFER_LOCAL_VALUEP (valcontents)
+ || let_shadows_buffer_binding_p (symbol))
+ {
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0;
+
+ if (XBUFFER_LOCAL_VALUE (valcontents)->check_frame)
+ tem1 = Fassq (symbol,
+ XFRAME (selected_frame)->param_alist);
+
+ if (! NILP (tem1))
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame = 1;
+ else
+ tem1 = XBUFFER_LOCAL_VALUE (valcontents)->cdr;
+ }
+ /* If it's a Lisp_Buffer_Local_Value, being set not bound,
+ and we're not within a let that was made for this buffer,
+ create a new buffer-local binding for the variable.
+ That means, give this buffer a new assoc for a local value
+ and load that binding. */
+ else
+ {
+ tem1 = Fcons (symbol, Fcdr (current_alist_element));
+ buf->local_var_alist
+ = Fcons (tem1, buf->local_var_alist);
+ }
+ }
+
+ /* Record which binding is now loaded. */
+ XSETCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr,
+ tem1);
+
+ /* Set `buffer' and `frame' slots for thebinding now loaded. */
+ XSETBUFFER (XBUFFER_LOCAL_VALUE (valcontents)->buffer, buf);
+ XBUFFER_LOCAL_VALUE (valcontents)->frame = selected_frame;
}
- valcontents = XCONS (valcontents)->car;
+ innercontents = XBUFFER_LOCAL_VALUE (valcontents)->realvalue;
}
+
/* If storing void (making the symbol void), forward only through
buffer-local indicator, not through Lisp_Objfwd, etc. */
if (voide)
- store_symval_forwarding (sym, Qnil, newval);
+ store_symval_forwarding (symbol, Qnil, newval, buf);
else
- store_symval_forwarding (sym, valcontents, newval);
+ store_symval_forwarding (symbol, innercontents, newval, buf);
+
+ /* If we just set a variable whose current binding is frame-local,
+ store the new value in the frame parameter too. */
+
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ {
+ /* What binding is loaded right now? */
+ current_alist_element
+ = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
+
+ /* If the current buffer is not the buffer whose binding is
+ loaded, or if there may be frame-local bindings and the frame
+ isn't the right one, or if it's a Lisp_Buffer_Local_Value and
+ the default binding is loaded, the loaded binding may be the
+ wrong one. */
+ if (XBUFFER_LOCAL_VALUE (valcontents)->found_for_frame)
+ XSETCDR (current_alist_element, newval);
+ }
+
return newval;
}
\f
/* Access or set a buffer-local symbol's default value. */
-/* Return the default value of SYM, but don't check for voidness.
- Return Qunbound or a Lisp_Void object if it is void. */
+/* Return the default value of SYMBOL, but don't check for voidness.
+ Return Qunbound if it is void. */
Lisp_Object
-default_value (sym)
- Lisp_Object sym;
+default_value (symbol)
+ Lisp_Object symbol;
{
register Lisp_Object valcontents;
- CHECK_SYMBOL (sym, 0);
- valcontents = XSYMBOL (sym)->value;
+ CHECK_SYMBOL (symbol, 0);
+ valcontents = SYMBOL_VALUE (symbol);
/* For a built-in buffer-local variable, get the default value
rather than letting do_symval_forwarding get the current value. */
- if (XTYPE (valcontents) == Lisp_Buffer_Objfwd)
+ if (BUFFER_OBJFWDP (valcontents))
{
- register int idx = XUINT (valcontents);
-
- if (*(int *) (idx + (char *) &buffer_local_flags) != 0)
- return *(Lisp_Object *)(idx + (char *) &buffer_defaults);
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ if (PER_BUFFER_IDX (offset) != 0)
+ return PER_BUFFER_DEFAULT (offset);
}
/* Handle user-created local variables. */
- if (XTYPE (valcontents) == Lisp_Buffer_Local_Value
- || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
{
/* If var is set up for a buffer that lacks a local value for it,
the current value is nominally the default value.
- But the current value slot may be more up to date, since
+ But the `realvalue' slot may be more up to date, since
ordinary setq stores just that slot. So use that. */
Lisp_Object current_alist_element, alist_element_car;
current_alist_element
- = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car;
- alist_element_car = XCONS (current_alist_element)->car;
+ = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
+ alist_element_car = XCAR (current_alist_element);
if (EQ (alist_element_car, current_alist_element))
- return do_symval_forwarding (XCONS (valcontents)->car);
+ return do_symval_forwarding (XBUFFER_LOCAL_VALUE (valcontents)->realvalue);
else
- return XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr;
+ return XCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
}
/* For other variables, get the current value. */
return do_symval_forwarding (valcontents);
}
DEFUN ("default-boundp", Fdefault_boundp, Sdefault_boundp, 1, 1, 0,
- "Return T if SYMBOL has a non-void default value.\n\
+ "Return t if SYMBOL has a non-void default value.\n\
This is the value that is seen in buffers that do not have their own values\n\
for this variable.")
- (sym)
- Lisp_Object sym;
+ (symbol)
+ Lisp_Object symbol;
{
register Lisp_Object value;
- value = default_value (sym);
- return (XTYPE (value) == Lisp_Void || EQ (value, Qunbound)
- ? Qnil : Qt);
+ value = default_value (symbol);
+ return (EQ (value, Qunbound) ? Qnil : Qt);
}
DEFUN ("default-value", Fdefault_value, Sdefault_value, 1, 1, 0,
This is the value that is seen in buffers that do not have their own values\n\
for this variable. The default value is meaningful for variables with\n\
local bindings in certain buffers.")
- (sym)
- Lisp_Object sym;
+ (symbol)
+ Lisp_Object symbol;
{
register Lisp_Object value;
- value = default_value (sym);
- if (XTYPE (value) == Lisp_Void || EQ (value, Qunbound))
- return Fsignal (Qvoid_variable, Fcons (sym, Qnil));
+ value = default_value (symbol);
+ if (EQ (value, Qunbound))
+ return Fsignal (Qvoid_variable, Fcons (symbol, Qnil));
return value;
}
"Set SYMBOL's default value to VAL. SYMBOL and VAL are evaluated.\n\
The default value is seen in buffers that do not have their own values\n\
for this variable.")
- (sym, value)
- Lisp_Object sym, value;
+ (symbol, value)
+ Lisp_Object symbol, value;
{
register Lisp_Object valcontents, current_alist_element, alist_element_buffer;
- CHECK_SYMBOL (sym, 0);
- valcontents = XSYMBOL (sym)->value;
+ CHECK_SYMBOL (symbol, 0);
+ valcontents = SYMBOL_VALUE (symbol);
/* Handle variables like case-fold-search that have special slots
in the buffer. Make them work apparently like Lisp_Buffer_Local_Value
variables. */
- if (XTYPE (valcontents) == Lisp_Buffer_Objfwd)
+ if (BUFFER_OBJFWDP (valcontents))
{
- register int idx = XUINT (valcontents);
-#ifndef RTPC_REGISTER_BUG
- register struct buffer *b;
-#else
- struct buffer *b;
-#endif
- register int mask = *(int *) (idx + (char *) &buffer_local_flags);
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ int idx = PER_BUFFER_IDX (offset);
+
+ PER_BUFFER_DEFAULT (offset) = value;
- if (mask > 0)
+ /* If this variable is not always local in all buffers,
+ set it in the buffers that don't nominally have a local value. */
+ if (idx > 0)
{
- *(Lisp_Object *)(idx + (char *) &buffer_defaults) = value;
+ struct buffer *b;
+
for (b = all_buffers; b; b = b->next)
- if (!(b->local_var_flags & mask))
- *(Lisp_Object *)(idx + (char *) b) = value;
+ if (!PER_BUFFER_VALUE_P (b, idx))
+ PER_BUFFER_VALUE (b, offset) = value;
}
return value;
}
- if (XTYPE (valcontents) != Lisp_Buffer_Local_Value &&
- XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value)
- return Fset (sym, value);
+ if (!BUFFER_LOCAL_VALUEP (valcontents)
+ && !SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ return Fset (symbol, value);
- /* Store new value into the DEFAULT-VALUE slot */
- XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->cdr = value;
+ /* Store new value into the DEFAULT-VALUE slot. */
+ XSETCDR (XBUFFER_LOCAL_VALUE (valcontents)->cdr, value);
- /* If that slot is current, we must set the REALVALUE slot too */
- current_alist_element = XCONS (XCONS (XCONS (valcontents)->cdr)->cdr)->car;
+ /* If the default binding is now loaded, set the REALVALUE slot too. */
+ current_alist_element
+ = XCAR (XBUFFER_LOCAL_VALUE (valcontents)->cdr);
alist_element_buffer = Fcar (current_alist_element);
if (EQ (alist_element_buffer, current_alist_element))
- store_symval_forwarding (sym, XCONS (valcontents)->car, value);
+ store_symval_forwarding (symbol,
+ XBUFFER_LOCAL_VALUE (valcontents)->realvalue,
+ value, NULL);
return value;
}
DEFUN ("setq-default", Fsetq_default, Ssetq_default, 2, UNEVALLED, 0,
- "\
-(setq-default SYM VAL SYM VAL ...): set each SYM's default value to its VAL.\n\
-VAL is evaluated; SYM is not. The default value is seen in buffers that do\n\
-not have their own values for this variable.")
+ "Set the default value of variable VAR to VALUE.\n\
+VAR, the variable name, is literal (not evaluated);\n\
+VALUE is an expression and it is evaluated.\n\
+The default value of a variable is seen in buffers\n\
+that do not have their own values for the variable.\n\
+\n\
+More generally, you can use multiple variables and values, as in\n\
+ (setq-default SYMBOL VALUE SYMBOL VALUE...)\n\
+This sets each SYMBOL's default value to the corresponding VALUE.\n\
+The VALUE for the Nth SYMBOL can refer to the new default values\n\
+of previous SYMs.")
(args)
Lisp_Object args;
{
register Lisp_Object args_left;
- register Lisp_Object val, sym;
+ register Lisp_Object val, symbol;
struct gcpro gcpro1;
if (NILP (args))
do
{
val = Feval (Fcar (Fcdr (args_left)));
- sym = Fcar (args_left);
- Fset_default (sym, val);
+ symbol = Fcar (args_left);
+ Fset_default (symbol, val);
args_left = Fcdr (Fcdr (args_left));
}
while (!NILP (args_left));
return val;
}
\f
+/* Lisp functions for creating and removing buffer-local variables. */
+
DEFUN ("make-variable-buffer-local", Fmake_variable_buffer_local, Smake_variable_buffer_local,
1, 1, "vMake Variable Buffer Local: ",
- "Make VARIABLE have a separate value for each buffer.\n\
-At any time, the value for the current buffer is in effect.\n\
-There is also a default value which is seen in any buffer which has not yet\n\
-set its own value.\n\
-Using `set' or `setq' to set the variable causes it to have a separate value\n\
-for the current buffer if it was previously using the default value.\n\
+ "Make VARIABLE become buffer-local whenever it is set.\n\
+At any time, the value for the current buffer is in effect,\n\
+unless the variable has never been set in this buffer,\n\
+in which case the default value is in effect.\n\
+Note that binding the variable with `let', or setting it while\n\
+a `let'-style binding made in this buffer is in effect,\n\
+does not make the variable buffer-local.\n\
+\n\
The function `default-value' gets the default value and `set-default' sets it.")
- (sym)
- register Lisp_Object sym;
+ (variable)
+ register Lisp_Object variable;
{
- register Lisp_Object tem, valcontents;
+ register Lisp_Object tem, valcontents, newval;
- CHECK_SYMBOL (sym, 0);
+ CHECK_SYMBOL (variable, 0);
- if (EQ (sym, Qnil) || EQ (sym, Qt))
- error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data);
+ valcontents = SYMBOL_VALUE (variable);
+ if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents))
+ error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data);
- valcontents = XSYMBOL (sym)->value;
- if ((XTYPE (valcontents) == Lisp_Buffer_Local_Value) ||
- (XTYPE (valcontents) == Lisp_Buffer_Objfwd))
- return sym;
- if (XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
+ if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents))
+ return variable;
+ if (SOME_BUFFER_LOCAL_VALUEP (valcontents))
{
- XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value);
- return sym;
+ XMISCTYPE (SYMBOL_VALUE (variable)) = Lisp_Misc_Buffer_Local_Value;
+ return variable;
}
if (EQ (valcontents, Qunbound))
- XSYMBOL (sym)->value = Qnil;
- tem = Fcons (Qnil, Fsymbol_value (sym));
- XCONS (tem)->car = tem;
- XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Fcurrent_buffer (), tem));
- XSETTYPE (XSYMBOL (sym)->value, Lisp_Buffer_Local_Value);
- return sym;
+ SET_SYMBOL_VALUE (variable, Qnil);
+ tem = Fcons (Qnil, Fsymbol_value (variable));
+ XSETCAR (tem, tem);
+ newval = allocate_misc ();
+ XMISCTYPE (newval) = Lisp_Misc_Buffer_Local_Value;
+ XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable);
+ XBUFFER_LOCAL_VALUE (newval)->buffer = Fcurrent_buffer ();
+ XBUFFER_LOCAL_VALUE (newval)->frame = Qnil;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0;
+ XBUFFER_LOCAL_VALUE (newval)->check_frame = 0;
+ XBUFFER_LOCAL_VALUE (newval)->cdr = tem;
+ SET_SYMBOL_VALUE (variable, newval);
+ return variable;
}
DEFUN ("make-local-variable", Fmake_local_variable, Smake_local_variable,
1, 1, "vMake Local Variable: ",
"Make VARIABLE have a separate value in the current buffer.\n\
Other buffers will continue to share a common default value.\n\
-See also `make-variable-buffer-local'.\n\n\
+\(The buffer-local value of VARIABLE starts out as the same value\n\
+VARIABLE previously had. If VARIABLE was void, it remains void.\)\n\
+See also `make-variable-buffer-local'.\n\
+\n\
If the variable is already arranged to become local when set,\n\
this function causes a local value to exist for this buffer,\n\
-just as if the variable were set.")
- (sym)
- register Lisp_Object sym;
+just as setting the variable would do.\n\
+\n\
+This function returns VARIABLE, and therefore\n\
+ (set (make-local-variable 'VARIABLE) VALUE-EXP)\n\
+works.\n\
+\n\
+Do not use `make-local-variable' to make a hook variable buffer-local.\n\
+Use `make-local-hook' instead.")
+ (variable)
+ register Lisp_Object variable;
{
register Lisp_Object tem, valcontents;
- CHECK_SYMBOL (sym, 0);
+ CHECK_SYMBOL (variable, 0);
- if (EQ (sym, Qnil) || EQ (sym, Qt))
- error ("Symbol %s may not be buffer-local", XSYMBOL (sym)->name->data);
+ valcontents = SYMBOL_VALUE (variable);
+ if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents))
+ error ("Symbol %s may not be buffer-local", XSYMBOL (variable)->name->data);
- valcontents = XSYMBOL (sym)->value;
- if (XTYPE (valcontents) == Lisp_Buffer_Local_Value
- || XTYPE (valcontents) == Lisp_Buffer_Objfwd)
+ if (BUFFER_LOCAL_VALUEP (valcontents) || BUFFER_OBJFWDP (valcontents))
{
- tem = Fboundp (sym);
-
+ tem = Fboundp (variable);
+
/* Make sure the symbol has a local value in this particular buffer,
by setting it to the same value it already has. */
- Fset (sym, (EQ (tem, Qt) ? Fsymbol_value (sym) : Qunbound));
- return sym;
+ Fset (variable, (EQ (tem, Qt) ? Fsymbol_value (variable) : Qunbound));
+ return variable;
}
- /* Make sure sym is set up to hold per-buffer values */
- if (XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value)
+ /* Make sure symbol is set up to hold per-buffer values. */
+ if (!SOME_BUFFER_LOCAL_VALUEP (valcontents))
{
- if (EQ (valcontents, Qunbound))
- XSYMBOL (sym)->value = Qnil;
+ Lisp_Object newval;
tem = Fcons (Qnil, do_symval_forwarding (valcontents));
- XCONS (tem)->car = tem;
- XSYMBOL (sym)->value = Fcons (XSYMBOL (sym)->value, Fcons (Qnil, tem));
- XSETTYPE (XSYMBOL (sym)->value, Lisp_Some_Buffer_Local_Value);
+ XSETCAR (tem, tem);
+ newval = allocate_misc ();
+ XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value;
+ XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable);
+ XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil;
+ XBUFFER_LOCAL_VALUE (newval)->frame = Qnil;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0;
+ XBUFFER_LOCAL_VALUE (newval)->check_frame = 0;
+ XBUFFER_LOCAL_VALUE (newval)->cdr = tem;
+ SET_SYMBOL_VALUE (variable, newval);;
}
- /* Make sure this buffer has its own value of sym */
- tem = Fassq (sym, current_buffer->local_var_alist);
+ /* Make sure this buffer has its own value of symbol. */
+ tem = Fassq (variable, current_buffer->local_var_alist);
if (NILP (tem))
{
+ /* Swap out any local binding for some other buffer, and make
+ sure the current value is permanently recorded, if it's the
+ default value. */
+ find_symbol_value (variable);
+
current_buffer->local_var_alist
- = Fcons (Fcons (sym, XCONS (XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->cdr)->cdr),
+ = Fcons (Fcons (variable, XCDR (XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->cdr)),
current_buffer->local_var_alist);
/* Make sure symbol does not think it is set up for this buffer;
- force it to look once again for this buffer's value */
+ force it to look once again for this buffer's value. */
{
- /* This local variable avoids "expression too complex" on IBM RT. */
- Lisp_Object xs;
-
- xs = XSYMBOL (sym)->value;
- if (current_buffer == XBUFFER (XCONS (XCONS (xs)->cdr)->car))
- XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->car = Qnil;
- }
+ Lisp_Object *pvalbuf;
+ valcontents = SYMBOL_VALUE (variable);
+
+ pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer;
+ if (current_buffer == XBUFFER (*pvalbuf))
+ *pvalbuf = Qnil;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0;
+ }
}
- return sym;
+
+ /* If the symbol forwards into a C variable, then load the binding
+ for this buffer now. If C code modifies the variable before we
+ load the binding in, then that new value will clobber the default
+ binding the next time we unload it. */
+ valcontents = XBUFFER_LOCAL_VALUE (SYMBOL_VALUE (variable))->realvalue;
+ if (INTFWDP (valcontents) || BOOLFWDP (valcontents) || OBJFWDP (valcontents))
+ swap_in_symval_forwarding (variable, SYMBOL_VALUE (variable));
+
+ return variable;
}
DEFUN ("kill-local-variable", Fkill_local_variable, Skill_local_variable,
1, 1, "vKill Local Variable: ",
"Make VARIABLE no longer have a separate value in the current buffer.\n\
From now on the default value will apply in this buffer.")
- (sym)
- register Lisp_Object sym;
+ (variable)
+ register Lisp_Object variable;
{
register Lisp_Object tem, valcontents;
- CHECK_SYMBOL (sym, 0);
+ CHECK_SYMBOL (variable, 0);
- valcontents = XSYMBOL (sym)->value;
+ valcontents = SYMBOL_VALUE (variable);
- if (XTYPE (valcontents) == Lisp_Buffer_Objfwd)
+ if (BUFFER_OBJFWDP (valcontents))
{
- register int idx = XUINT (valcontents);
- register int mask = *(int *) (idx + (char *) &buffer_local_flags);
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ int idx = PER_BUFFER_IDX (offset);
- if (mask > 0)
+ if (idx > 0)
{
- *(Lisp_Object *)(idx + (char *) current_buffer)
- = *(Lisp_Object *)(idx + (char *) &buffer_defaults);
- current_buffer->local_var_flags &= ~mask;
+ SET_PER_BUFFER_VALUE_P (current_buffer, idx, 0);
+ PER_BUFFER_VALUE (current_buffer, offset)
+ = PER_BUFFER_DEFAULT (offset);
}
- return sym;
+ return variable;
}
- if (XTYPE (valcontents) != Lisp_Buffer_Local_Value &&
- XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value)
- return sym;
+ if (!BUFFER_LOCAL_VALUEP (valcontents)
+ && !SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ return variable;
- /* Get rid of this buffer's alist element, if any */
+ /* Get rid of this buffer's alist element, if any. */
- tem = Fassq (sym, current_buffer->local_var_alist);
+ tem = Fassq (variable, current_buffer->local_var_alist);
if (!NILP (tem))
- current_buffer->local_var_alist = Fdelq (tem, current_buffer->local_var_alist);
+ current_buffer->local_var_alist
+ = Fdelq (tem, current_buffer->local_var_alist);
- /* Make sure symbol does not think it is set up for this buffer;
- force it to look once again for this buffer's value */
+ /* If the symbol is set up with the current buffer's binding
+ loaded, recompute its value. We have to do it now, or else
+ forwarded objects won't work right. */
{
- Lisp_Object sv;
- sv = XSYMBOL (sym)->value;
- if (current_buffer == XBUFFER (XCONS (XCONS (sv)->cdr)->car))
- XCONS (XCONS (sv)->cdr)->car = Qnil;
+ Lisp_Object *pvalbuf;
+ valcontents = SYMBOL_VALUE (variable);
+ pvalbuf = &XBUFFER_LOCAL_VALUE (valcontents)->buffer;
+ if (current_buffer == XBUFFER (*pvalbuf))
+ {
+ *pvalbuf = Qnil;
+ XBUFFER_LOCAL_VALUE (valcontents)->found_for_buffer = 0;
+ find_symbol_value (variable);
+ }
}
- return sym;
+ return variable;
+}
+
+/* Lisp functions for creating and removing buffer-local variables. */
+
+DEFUN ("make-variable-frame-local", Fmake_variable_frame_local, Smake_variable_frame_local,
+ 1, 1, "vMake Variable Frame Local: ",
+ "Enable VARIABLE to have frame-local bindings.\n\
+When a frame-local binding exists in the current frame,\n\
+it is in effect whenever the current buffer has no buffer-local binding.\n\
+A frame-local binding is actual a frame parameter value;\n\
+thus, any given frame has a local binding for VARIABLE\n\
+if it has a value for the frame parameter named VARIABLE.\n\
+See `modify-frame-parameters'.")
+ (variable)
+ register Lisp_Object variable;
+{
+ register Lisp_Object tem, valcontents, newval;
+
+ CHECK_SYMBOL (variable, 0);
+
+ valcontents = SYMBOL_VALUE (variable);
+ if (EQ (variable, Qnil) || EQ (variable, Qt) || KBOARD_OBJFWDP (valcontents)
+ || BUFFER_OBJFWDP (valcontents))
+ error ("Symbol %s may not be frame-local", XSYMBOL (variable)->name->data);
+
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ {
+ XBUFFER_LOCAL_VALUE (valcontents)->check_frame = 1;
+ return variable;
+ }
+
+ if (EQ (valcontents, Qunbound))
+ SET_SYMBOL_VALUE (variable, Qnil);
+ tem = Fcons (Qnil, Fsymbol_value (variable));
+ XSETCAR (tem, tem);
+ newval = allocate_misc ();
+ XMISCTYPE (newval) = Lisp_Misc_Some_Buffer_Local_Value;
+ XBUFFER_LOCAL_VALUE (newval)->realvalue = SYMBOL_VALUE (variable);
+ XBUFFER_LOCAL_VALUE (newval)->buffer = Qnil;
+ XBUFFER_LOCAL_VALUE (newval)->frame = Qnil;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_buffer = 0;
+ XBUFFER_LOCAL_VALUE (newval)->found_for_frame = 0;
+ XBUFFER_LOCAL_VALUE (newval)->check_frame = 1;
+ XBUFFER_LOCAL_VALUE (newval)->cdr = tem;
+ SET_SYMBOL_VALUE (variable, newval);
+ return variable;
+}
+
+DEFUN ("local-variable-p", Flocal_variable_p, Slocal_variable_p,
+ 1, 2, 0,
+ "Non-nil if VARIABLE has a local binding in buffer BUFFER.\n\
+BUFFER defaults to the current buffer.")
+ (variable, buffer)
+ register Lisp_Object variable, buffer;
+{
+ Lisp_Object valcontents;
+ register struct buffer *buf;
+
+ if (NILP (buffer))
+ buf = current_buffer;
+ else
+ {
+ CHECK_BUFFER (buffer, 0);
+ buf = XBUFFER (buffer);
+ }
+
+ CHECK_SYMBOL (variable, 0);
+
+ valcontents = SYMBOL_VALUE (variable);
+ if (BUFFER_LOCAL_VALUEP (valcontents)
+ || SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ {
+ Lisp_Object tail, elt;
+
+ variable = indirect_variable (variable);
+ for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail))
+ {
+ elt = XCAR (tail);
+ if (EQ (variable, XCAR (elt)))
+ return Qt;
+ }
+ }
+ if (BUFFER_OBJFWDP (valcontents))
+ {
+ int offset = XBUFFER_OBJFWD (valcontents)->offset;
+ int idx = PER_BUFFER_IDX (offset);
+ if (idx == -1 || PER_BUFFER_VALUE_P (buf, idx))
+ return Qt;
+ }
+ return Qnil;
+}
+
+DEFUN ("local-variable-if-set-p", Flocal_variable_if_set_p, Slocal_variable_if_set_p,
+ 1, 2, 0,
+ "Non-nil if VARIABLE will be local in buffer BUFFER if it is set there.\n\
+BUFFER defaults to the current buffer.")
+ (variable, buffer)
+ register Lisp_Object variable, buffer;
+{
+ Lisp_Object valcontents;
+ register struct buffer *buf;
+
+ if (NILP (buffer))
+ buf = current_buffer;
+ else
+ {
+ CHECK_BUFFER (buffer, 0);
+ buf = XBUFFER (buffer);
+ }
+
+ CHECK_SYMBOL (variable, 0);
+
+ valcontents = SYMBOL_VALUE (variable);
+
+ /* This means that make-variable-buffer-local was done. */
+ if (BUFFER_LOCAL_VALUEP (valcontents))
+ return Qt;
+ /* All these slots become local if they are set. */
+ if (BUFFER_OBJFWDP (valcontents))
+ return Qt;
+ if (SOME_BUFFER_LOCAL_VALUEP (valcontents))
+ {
+ Lisp_Object tail, elt;
+ for (tail = buf->local_var_alist; CONSP (tail); tail = XCDR (tail))
+ {
+ elt = XCAR (tail);
+ if (EQ (variable, XCAR (elt)))
+ return Qt;
+ }
+ }
+ return Qnil;
}
\f
/* Find the function at the end of a chain of symbol function indirections. */
This is like Findirect_function, except that it doesn't signal an
error if the chain ends up unbound. */
Lisp_Object
-indirect_function (object, error)
- register Lisp_Object object;
+indirect_function (object)
+ register Lisp_Object object;
{
- Lisp_Object tortise, hare;
+ Lisp_Object tortoise, hare;
- hare = tortise = object;
+ hare = tortoise = object;
for (;;)
{
- if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound))
+ if (!SYMBOLP (hare) || EQ (hare, Qunbound))
break;
hare = XSYMBOL (hare)->function;
- if (XTYPE (hare) != Lisp_Symbol || EQ (hare, Qunbound))
+ if (!SYMBOLP (hare) || EQ (hare, Qunbound))
break;
hare = XSYMBOL (hare)->function;
- tortise = XSYMBOL (tortise)->function;
+ tortoise = XSYMBOL (tortoise)->function;
- if (EQ (hare, tortise))
+ if (EQ (hare, tortoise))
Fsignal (Qcyclic_function_indirection, Fcons (object, Qnil));
}
/* Extract and set vector and string elements */
DEFUN ("aref", Faref, Saref, 2, 2, 0,
- "Return the element of ARRAY at index INDEX.\n\
-ARRAY may be a vector or a string, or a byte-code object. INDEX starts at 0.")
+ "Return the element of ARRAY at index IDX.\n\
+ARRAY may be a vector, a string, a char-table, a bool-vector,\n\
+or a byte-code object. IDX starts at 0.")
(array, idx)
register Lisp_Object array;
Lisp_Object idx;
CHECK_NUMBER (idx, 1);
idxval = XINT (idx);
- if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String
- && XTYPE (array) != Lisp_Compiled)
- array = wrong_type_argument (Qarrayp, array);
- if (idxval < 0 || idxval >= XVECTOR (array)->size)
- args_out_of_range (array, idx);
- if (XTYPE (array) == Lisp_String)
+ if (STRINGP (array))
+ {
+ int c, idxval_byte;
+
+ if (idxval < 0 || idxval >= XSTRING (array)->size)
+ args_out_of_range (array, idx);
+ if (! STRING_MULTIBYTE (array))
+ return make_number ((unsigned char) XSTRING (array)->data[idxval]);
+ idxval_byte = string_char_to_byte (array, idxval);
+
+ c = STRING_CHAR (&XSTRING (array)->data[idxval_byte],
+ STRING_BYTES (XSTRING (array)) - idxval_byte);
+ return make_number (c);
+ }
+ else if (BOOL_VECTOR_P (array))
+ {
+ int val;
+
+ if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size)
+ args_out_of_range (array, idx);
+
+ val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR];
+ return (val & (1 << (idxval % BITS_PER_CHAR)) ? Qt : Qnil);
+ }
+ else if (CHAR_TABLE_P (array))
{
Lisp_Object val;
- XFASTINT (val) = (unsigned char) XSTRING (array)->data[idxval];
- return val;
+
+ val = Qnil;
+
+ if (idxval < 0)
+ args_out_of_range (array, idx);
+ if (idxval < CHAR_TABLE_ORDINARY_SLOTS)
+ {
+ /* For ASCII and 8-bit European characters, the element is
+ stored in the top table. */
+ val = XCHAR_TABLE (array)->contents[idxval];
+ if (NILP (val))
+ val = XCHAR_TABLE (array)->defalt;
+ while (NILP (val)) /* Follow parents until we find some value. */
+ {
+ array = XCHAR_TABLE (array)->parent;
+ if (NILP (array))
+ return Qnil;
+ val = XCHAR_TABLE (array)->contents[idxval];
+ if (NILP (val))
+ val = XCHAR_TABLE (array)->defalt;
+ }
+ return val;
+ }
+ else
+ {
+ int code[4], i;
+ Lisp_Object sub_table;
+
+ SPLIT_CHAR (idxval, code[0], code[1], code[2]);
+ if (code[1] < 32) code[1] = -1;
+ else if (code[2] < 32) code[2] = -1;
+
+ /* Here, the possible range of CODE[0] (== charset ID) is
+ 128..MAX_CHARSET. Since the top level char table contains
+ data for multibyte characters after 256th element, we must
+ increment CODE[0] by 128 to get a correct index. */
+ code[0] += 128;
+ code[3] = -1; /* anchor */
+
+ try_parent_char_table:
+ sub_table = array;
+ for (i = 0; code[i] >= 0; i++)
+ {
+ val = XCHAR_TABLE (sub_table)->contents[code[i]];
+ if (SUB_CHAR_TABLE_P (val))
+ sub_table = val;
+ else
+ {
+ if (NILP (val))
+ val = XCHAR_TABLE (sub_table)->defalt;
+ if (NILP (val))
+ {
+ array = XCHAR_TABLE (array)->parent;
+ if (!NILP (array))
+ goto try_parent_char_table;
+ }
+ return val;
+ }
+ }
+ /* Here, VAL is a sub char table. We try the default value
+ and parent. */
+ val = XCHAR_TABLE (val)->defalt;
+ if (NILP (val))
+ {
+ array = XCHAR_TABLE (array)->parent;
+ if (!NILP (array))
+ goto try_parent_char_table;
+ }
+ return val;
+ }
}
else
- return XVECTOR (array)->contents[idxval];
+ {
+ int size = 0;
+ if (VECTORP (array))
+ size = XVECTOR (array)->size;
+ else if (COMPILEDP (array))
+ size = XVECTOR (array)->size & PSEUDOVECTOR_SIZE_MASK;
+ else
+ wrong_type_argument (Qarrayp, array);
+
+ if (idxval < 0 || idxval >= size)
+ args_out_of_range (array, idx);
+ return XVECTOR (array)->contents[idxval];
+ }
}
+/* Don't use alloca for relocating string data larger than this, lest
+ we overflow their stack. The value is the same as what used in
+ fns.c for base64 handling. */
+#define MAX_ALLOCA 16*1024
+
DEFUN ("aset", Faset, Saset, 3, 3, 0,
- "Store into the element of ARRAY at index INDEX the value NEWVAL.\n\
-ARRAY may be a vector or a string. INDEX starts at 0.")
+ "Store into the element of ARRAY at index IDX the value NEWELT.\n\
+ARRAY may be a vector, a string, a char-table or a bool-vector.\n\
+IDX starts at 0.")
(array, idx, newelt)
register Lisp_Object array;
Lisp_Object idx, newelt;
CHECK_NUMBER (idx, 1);
idxval = XINT (idx);
- if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String)
+ if (!VECTORP (array) && !STRINGP (array) && !BOOL_VECTOR_P (array)
+ && ! CHAR_TABLE_P (array))
array = wrong_type_argument (Qarrayp, array);
- if (idxval < 0 || idxval >= XVECTOR (array)->size)
- args_out_of_range (array, idx);
CHECK_IMPURE (array);
- if (XTYPE (array) == Lisp_Vector)
- XVECTOR (array)->contents[idxval] = newelt;
+ if (VECTORP (array))
+ {
+ if (idxval < 0 || idxval >= XVECTOR (array)->size)
+ args_out_of_range (array, idx);
+ XVECTOR (array)->contents[idxval] = newelt;
+ }
+ else if (BOOL_VECTOR_P (array))
+ {
+ int val;
+
+ if (idxval < 0 || idxval >= XBOOL_VECTOR (array)->size)
+ args_out_of_range (array, idx);
+
+ val = (unsigned char) XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR];
+
+ if (! NILP (newelt))
+ val |= 1 << (idxval % BITS_PER_CHAR);
+ else
+ val &= ~(1 << (idxval % BITS_PER_CHAR));
+ XBOOL_VECTOR (array)->data[idxval / BITS_PER_CHAR] = val;
+ }
+ else if (CHAR_TABLE_P (array))
+ {
+ if (idxval < 0)
+ args_out_of_range (array, idx);
+ if (idxval < CHAR_TABLE_ORDINARY_SLOTS)
+ XCHAR_TABLE (array)->contents[idxval] = newelt;
+ else
+ {
+ int code[4], i;
+ Lisp_Object val;
+
+ SPLIT_CHAR (idxval, code[0], code[1], code[2]);
+ if (code[1] < 32) code[1] = -1;
+ else if (code[2] < 32) code[2] = -1;
+
+ /* See the comment of the corresponding part in Faref. */
+ code[0] += 128;
+ code[3] = -1; /* anchor */
+ for (i = 0; code[i + 1] >= 0; i++)
+ {
+ val = XCHAR_TABLE (array)->contents[code[i]];
+ if (SUB_CHAR_TABLE_P (val))
+ array = val;
+ else
+ {
+ Lisp_Object temp;
+
+ /* VAL is a leaf. Create a sub char table with the
+ default value VAL or XCHAR_TABLE (array)->defalt
+ and look into it. */
+
+ temp = make_sub_char_table (NILP (val)
+ ? XCHAR_TABLE (array)->defalt
+ : val);
+ XCHAR_TABLE (array)->contents[code[i]] = temp;
+ array = temp;
+ }
+ }
+ XCHAR_TABLE (array)->contents[code[i]] = newelt;
+ }
+ }
+ else if (STRING_MULTIBYTE (array))
+ {
+ int idxval_byte, prev_bytes, new_bytes;
+ unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1;
+
+ if (idxval < 0 || idxval >= XSTRING (array)->size)
+ args_out_of_range (array, idx);
+ CHECK_NUMBER (newelt, 2);
+
+ idxval_byte = string_char_to_byte (array, idxval);
+ p1 = &XSTRING (array)->data[idxval_byte];
+ PARSE_MULTIBYTE_SEQ (p1, nbytes - idxval_byte, prev_bytes);
+ new_bytes = CHAR_STRING (XINT (newelt), p0);
+ if (prev_bytes != new_bytes)
+ {
+ /* We must relocate the string data. */
+ int nchars = XSTRING (array)->size;
+ int nbytes = STRING_BYTES (XSTRING (array));
+ unsigned char *str;
+
+ str = (nbytes <= MAX_ALLOCA
+ ? (unsigned char *) alloca (nbytes)
+ : (unsigned char *) xmalloc (nbytes));
+ bcopy (XSTRING (array)->data, str, nbytes);
+ allocate_string_data (XSTRING (array), nchars,
+ nbytes + new_bytes - prev_bytes);
+ bcopy (str, XSTRING (array)->data, idxval_byte);
+ p1 = XSTRING (array)->data + idxval_byte;
+ bcopy (str + idxval_byte + prev_bytes, p1 + new_bytes,
+ nbytes - (idxval_byte + prev_bytes));
+ if (nbytes > MAX_ALLOCA)
+ xfree (str);
+ clear_string_char_byte_cache ();
+ }
+ while (new_bytes--)
+ *p1++ = *p0++;
+ }
else
{
+ if (idxval < 0 || idxval >= XSTRING (array)->size)
+ args_out_of_range (array, idx);
CHECK_NUMBER (newelt, 2);
- XSTRING (array)->data[idxval] = XINT (newelt);
+
+ if (XINT (newelt) < 0 || SINGLE_BYTE_CHAR_P (XINT (newelt)))
+ XSTRING (array)->data[idxval] = XINT (newelt);
+ else
+ {
+ /* We must relocate the string data while converting it to
+ multibyte. */
+ int idxval_byte, prev_bytes, new_bytes;
+ unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1;
+ unsigned char *origstr = XSTRING (array)->data, *str;
+ int nchars, nbytes;
+
+ nchars = XSTRING (array)->size;
+ nbytes = idxval_byte = count_size_as_multibyte (origstr, idxval);
+ nbytes += count_size_as_multibyte (origstr + idxval,
+ nchars - idxval);
+ str = (nbytes <= MAX_ALLOCA
+ ? (unsigned char *) alloca (nbytes)
+ : (unsigned char *) xmalloc (nbytes));
+ copy_text (XSTRING (array)->data, str, nchars, 0, 1);
+ PARSE_MULTIBYTE_SEQ (str + idxval_byte, nbytes - idxval_byte,
+ prev_bytes);
+ new_bytes = CHAR_STRING (XINT (newelt), p0);
+ allocate_string_data (XSTRING (array), nchars,
+ nbytes + new_bytes - prev_bytes);
+ bcopy (str, XSTRING (array)->data, idxval_byte);
+ p1 = XSTRING (array)->data + idxval_byte;
+ while (new_bytes--)
+ *p1++ = *p0++;
+ bcopy (str + idxval_byte + prev_bytes, p1,
+ nbytes - (idxval_byte + prev_bytes));
+ if (nbytes > MAX_ALLOCA)
+ xfree (str);
+ clear_string_char_byte_cache ();
+ }
}
return newelt;
}
-
-Lisp_Object
-Farray_length (array)
- register Lisp_Object array;
-{
- register Lisp_Object size;
- if (XTYPE (array) != Lisp_Vector && XTYPE (array) != Lisp_String
- && XTYPE (array) != Lisp_Compiled)
- array = wrong_type_argument (Qarrayp, array);
- XFASTINT (size) = XVECTOR (array)->size;
- return size;
-}
\f
/* Arithmetic functions */
Lisp_Object num1, num2;
enum comparison comparison;
{
- double f1, f2;
+ double f1 = 0, f2 = 0;
int floatp = 0;
-#ifdef LISP_FLOAT_TYPE
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0);
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0);
- if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float)
+ if (FLOATP (num1) || FLOATP (num2))
{
floatp = 1;
- f1 = (XTYPE (num1) == Lisp_Float) ? XFLOAT (num1)->data : XINT (num1);
- f2 = (XTYPE (num2) == Lisp_Float) ? XFLOAT (num2)->data : XINT (num2);
+ f1 = (FLOATP (num1)) ? XFLOAT_DATA (num1) : XINT (num1);
+ f2 = (FLOATP (num2)) ? XFLOAT_DATA (num2) : XINT (num2);
}
-#else
- CHECK_NUMBER_COERCE_MARKER (num1, 0);
- CHECK_NUMBER_COERCE_MARKER (num2, 0);
-#endif /* LISP_FLOAT_TYPE */
switch (comparison)
{
if (floatp ? f1 >= f2 : XINT (num1) >= XINT (num2))
return Qt;
return Qnil;
+
+ default:
+ abort ();
}
}
DEFUN ("=", Feqlsign, Seqlsign, 2, 2, 0,
- "T if two args, both numbers or markers, are equal.")
+ "Return t if two args, both numbers or markers, are equal.")
(num1, num2)
register Lisp_Object num1, num2;
{
}
DEFUN ("<", Flss, Slss, 2, 2, 0,
- "T if first arg is less than second arg. Both must be numbers or markers.")
+ "Return t if first arg is less than second arg. Both must be numbers or markers.")
(num1, num2)
register Lisp_Object num1, num2;
{
}
DEFUN (">", Fgtr, Sgtr, 2, 2, 0,
- "T if first arg is greater than second arg. Both must be numbers or markers.")
+ "Return t if first arg is greater than second arg. Both must be numbers or markers.")
(num1, num2)
register Lisp_Object num1, num2;
{
}
DEFUN ("<=", Fleq, Sleq, 2, 2, 0,
- "T if first arg is less than or equal to second arg.\n\
+ "Return t if first arg is less than or equal to second arg.\n\
Both must be numbers or markers.")
(num1, num2)
register Lisp_Object num1, num2;
}
DEFUN (">=", Fgeq, Sgeq, 2, 2, 0,
- "T if first arg is greater than or equal to second arg.\n\
+ "Return t if first arg is greater than or equal to second arg.\n\
Both must be numbers or markers.")
(num1, num2)
register Lisp_Object num1, num2;
}
DEFUN ("/=", Fneq, Sneq, 2, 2, 0,
- "T if first arg is not equal to second arg. Both must be numbers or markers.")
+ "Return t if first arg is not equal to second arg. Both must be numbers or markers.")
(num1, num2)
register Lisp_Object num1, num2;
{
return arithcompare (num1, num2, notequal);
}
-DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "T if NUMBER is zero.")
- (num)
- register Lisp_Object num;
+DEFUN ("zerop", Fzerop, Szerop, 1, 1, 0, "Return t if NUMBER is zero.")
+ (number)
+ register Lisp_Object number;
{
-#ifdef LISP_FLOAT_TYPE
- CHECK_NUMBER_OR_FLOAT (num, 0);
+ CHECK_NUMBER_OR_FLOAT (number, 0);
- if (XTYPE(num) == Lisp_Float)
+ if (FLOATP (number))
{
- if (XFLOAT(num)->data == 0.0)
+ if (XFLOAT_DATA (number) == 0.0)
return Qt;
return Qnil;
}
-#else
- CHECK_NUMBER (num, 0);
-#endif /* LISP_FLOAT_TYPE */
- if (!XINT (num))
+ if (!XINT (number))
return Qt;
return Qnil;
}
\f
-DEFUN ("int-to-string", Fint_to_string, Sint_to_string, 1, 1, 0,
- "Convert INT to a string by printing it in decimal.\n\
-Uses a minus sign if negative.")
- (num)
- Lisp_Object num;
+/* Convert between long values and pairs of Lisp integers. */
+
+Lisp_Object
+long_to_cons (i)
+ unsigned long i;
+{
+ unsigned int top = i >> 16;
+ unsigned int bot = i & 0xFFFF;
+ if (top == 0)
+ return make_number (bot);
+ if (top == (unsigned long)-1 >> 16)
+ return Fcons (make_number (-1), make_number (bot));
+ return Fcons (make_number (top), make_number (bot));
+}
+
+unsigned long
+cons_to_long (c)
+ Lisp_Object c;
+{
+ Lisp_Object top, bot;
+ if (INTEGERP (c))
+ return XINT (c);
+ top = XCAR (c);
+ bot = XCDR (c);
+ if (CONSP (bot))
+ bot = XCAR (bot);
+ return ((XINT (top) << 16) | XINT (bot));
+}
+\f
+DEFUN ("number-to-string", Fnumber_to_string, Snumber_to_string, 1, 1, 0,
+ "Convert NUMBER to a string by printing it in decimal.\n\
+Uses a minus sign if negative.\n\
+NUMBER may be an integer or a floating point number.")
+ (number)
+ Lisp_Object number;
{
- char buffer[20];
+ char buffer[VALBITS];
-#ifndef LISP_FLOAT_TYPE
- CHECK_NUMBER (num, 0);
-#else
- CHECK_NUMBER_OR_FLOAT (num, 0);
+ CHECK_NUMBER_OR_FLOAT (number, 0);
- if (XTYPE(num) == Lisp_Float)
+ if (FLOATP (number))
{
char pigbuf[350]; /* see comments in float_to_string */
- float_to_string (pigbuf, XFLOAT(num)->data);
- return build_string (pigbuf);
+ float_to_string (pigbuf, XFLOAT_DATA (number));
+ return build_string (pigbuf);
}
-#endif /* LISP_FLOAT_TYPE */
- sprintf (buffer, "%d", XINT (num));
+ if (sizeof (int) == sizeof (EMACS_INT))
+ sprintf (buffer, "%d", XINT (number));
+ else if (sizeof (long) == sizeof (EMACS_INT))
+ sprintf (buffer, "%ld", (long) XINT (number));
+ else
+ abort ();
return build_string (buffer);
}
-DEFUN ("string-to-int", Fstring_to_int, Sstring_to_int, 1, 1, 0,
- "Convert STRING to an integer by parsing it as a decimal number.")
- (str)
- register Lisp_Object str;
+INLINE static int
+digit_to_number (character, base)
+ int character, base;
{
- CHECK_STRING (str, 0);
+ int digit;
+
+ if (character >= '0' && character <= '9')
+ digit = character - '0';
+ else if (character >= 'a' && character <= 'z')
+ digit = character - 'a' + 10;
+ else if (character >= 'A' && character <= 'Z')
+ digit = character - 'A' + 10;
+ else
+ return -1;
+
+ if (digit >= base)
+ return -1;
+ else
+ return digit;
+}
+
+DEFUN ("string-to-number", Fstring_to_number, Sstring_to_number, 1, 2, 0,
+ "Convert STRING to a number by parsing it as a decimal number.\n\
+This parses both integers and floating point numbers.\n\
+It ignores leading spaces and tabs.\n\
+\n\
+If BASE, interpret STRING as a number in that base. If BASE isn't\n\
+present, base 10 is used. BASE must be between 2 and 16 (inclusive).\n\
+If the base used is not 10, floating point is not recognized.")
+ (string, base)
+ register Lisp_Object string, base;
+{
+ register unsigned char *p;
+ register int b;
+ int sign = 1;
+ Lisp_Object val;
+
+ CHECK_STRING (string, 0);
+
+ if (NILP (base))
+ b = 10;
+ else
+ {
+ CHECK_NUMBER (base, 1);
+ b = XINT (base);
+ if (b < 2 || b > 16)
+ Fsignal (Qargs_out_of_range, Fcons (base, Qnil));
+ }
+
+ /* Skip any whitespace at the front of the number. Some versions of
+ atoi do this anyway, so we might as well make Emacs lisp consistent. */
+ p = XSTRING (string)->data;
+ while (*p == ' ' || *p == '\t')
+ p++;
+
+ if (*p == '-')
+ {
+ sign = -1;
+ p++;
+ }
+ else if (*p == '+')
+ p++;
+
+ if (isfloat_string (p) && b == 10)
+ val = make_float (sign * atof (p));
+ else
+ {
+ double v = 0;
-#ifdef LISP_FLOAT_TYPE
- if (isfloat_string (XSTRING (str)->data))
- return make_float (atof (XSTRING (str)->data));
-#endif /* LISP_FLOAT_TYPE */
+ while (1)
+ {
+ int digit = digit_to_number (*p++, b);
+ if (digit < 0)
+ break;
+ v = v * b + digit;
+ }
+
+ val = make_fixnum_or_float (sign * v);
+ }
- return make_number (atoi (XSTRING (str)->data));
+ return val;
}
-\f
+
+\f
enum arithop
- { Aadd, Asub, Amult, Adiv, Alogand, Alogior, Alogxor, Amax, Amin };
+ {
+ Aadd,
+ Asub,
+ Amult,
+ Adiv,
+ Alogand,
+ Alogior,
+ Alogxor,
+ Amax,
+ Amin
+ };
+
+static Lisp_Object float_arith_driver P_ ((double, int, enum arithop,
+ int, Lisp_Object *));
+extern Lisp_Object fmod_float ();
Lisp_Object
-arith_driver
- (code, nargs, args)
+arith_driver (code, nargs, args)
enum arithop code;
int nargs;
register Lisp_Object *args;
{
register Lisp_Object val;
register int argnum;
- register int accum;
- register int next;
+ register EMACS_INT accum = 0;
+ register EMACS_INT next;
-#ifdef SWITCH_ENUM_BUG
- switch ((int) code)
-#else
- switch (code)
-#endif
+ switch (SWITCH_ENUM_CAST (code))
{
case Alogior:
case Alogxor:
case Aadd:
case Asub:
- accum = 0; break;
+ accum = 0;
+ break;
case Amult:
- accum = 1; break;
+ accum = 1;
+ break;
case Alogand:
- accum = -1; break;
+ accum = -1;
+ break;
+ default:
+ break;
}
for (argnum = 0; argnum < nargs; argnum++)
{
- val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */
-#ifdef LISP_FLOAT_TYPE
+ /* Using args[argnum] as argument to CHECK_NUMBER_... */
+ val = args[argnum];
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum);
- if (XTYPE (val) == Lisp_Float) /* time to do serious math */
- return (float_arith_driver ((double) accum, argnum, code,
- nargs, args));
-#else
- CHECK_NUMBER_COERCE_MARKER (val, argnum);
-#endif /* LISP_FLOAT_TYPE */
- args[argnum] = val; /* runs into a compiler bug. */
+ if (FLOATP (val))
+ return float_arith_driver ((double) accum, argnum, code,
+ nargs, args);
+ args[argnum] = val;
next = XINT (args[argnum]);
-#ifdef SWITCH_ENUM_BUG
- switch ((int) code)
-#else
- switch (code)
-#endif
+ switch (SWITCH_ENUM_CAST (code))
{
- case Aadd: accum += next; break;
+ case Aadd:
+ accum += next;
+ break;
case Asub:
- if (!argnum && nargs != 1)
- next = - next;
- accum -= next;
+ accum = argnum ? accum - next : nargs == 1 ? - next : next;
+ break;
+ case Amult:
+ accum *= next;
break;
- case Amult: accum *= next; break;
case Adiv:
- if (!argnum) accum = next;
- else accum /= next;
+ if (!argnum)
+ accum = next;
+ else
+ {
+ if (next == 0)
+ Fsignal (Qarith_error, Qnil);
+ accum /= next;
+ }
+ break;
+ case Alogand:
+ accum &= next;
+ break;
+ case Alogior:
+ accum |= next;
+ break;
+ case Alogxor:
+ accum ^= next;
+ break;
+ case Amax:
+ if (!argnum || next > accum)
+ accum = next;
+ break;
+ case Amin:
+ if (!argnum || next < accum)
+ accum = next;
break;
- case Alogand: accum &= next; break;
- case Alogior: accum |= next; break;
- case Alogxor: accum ^= next; break;
- case Amax: if (!argnum || next > accum) accum = next; break;
- case Amin: if (!argnum || next < accum) accum = next; break;
}
}
- XSET (val, Lisp_Int, accum);
+ XSETINT (val, accum);
return val;
}
-#ifdef LISP_FLOAT_TYPE
-Lisp_Object
+#undef isnan
+#define isnan(x) ((x) != (x))
+
+static Lisp_Object
float_arith_driver (accum, argnum, code, nargs, args)
double accum;
register int argnum;
{
register Lisp_Object val;
double next;
-
+
for (; argnum < nargs; argnum++)
{
val = args[argnum]; /* using args[argnum] as argument to CHECK_NUMBER_... */
CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (val, argnum);
- if (XTYPE (val) == Lisp_Float)
+ if (FLOATP (val))
{
- next = XFLOAT (val)->data;
+ next = XFLOAT_DATA (val);
}
else
{
args[argnum] = val; /* runs into a compiler bug. */
next = XINT (args[argnum]);
}
-#ifdef SWITCH_ENUM_BUG
- switch ((int) code)
-#else
- switch (code)
-#endif
+ switch (SWITCH_ENUM_CAST (code))
{
case Aadd:
accum += next;
break;
case Asub:
- if (!argnum && nargs != 1)
- next = - next;
- accum -= next;
+ accum = argnum ? accum - next : nargs == 1 ? - next : next;
break;
case Amult:
accum *= next;
if (!argnum)
accum = next;
else
- accum /= next;
+ {
+ if (! IEEE_FLOATING_POINT && next == 0)
+ Fsignal (Qarith_error, Qnil);
+ accum /= next;
+ }
break;
case Alogand:
case Alogior:
case Alogxor:
return wrong_type_argument (Qinteger_or_marker_p, val);
case Amax:
- if (!argnum || next > accum)
+ if (!argnum || isnan (next) || next > accum)
accum = next;
break;
case Amin:
- if (!argnum || next < accum)
+ if (!argnum || isnan (next) || next < accum)
accum = next;
break;
}
return make_float (accum);
}
-#endif /* LISP_FLOAT_TYPE */
+
DEFUN ("+", Fplus, Splus, 0, MANY, 0,
- "Return sum of any number of arguments, which are numbers or markers.")
+ "Return sum of any number of arguments, which are numbers or markers.
+usage: (+ &rest NUMBERS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("-", Fminus, Sminus, 0, MANY, 0,
"Negate number or subtract numbers or markers.\n\
With one arg, negates it. With more than one arg,\n\
-subtracts all but the first from the first.")
+subtracts all but the first from the first.
+usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
}
DEFUN ("*", Ftimes, Stimes, 0, MANY, 0,
- "Returns product of any number of arguments, which are numbers or markers.")
+ "Returns product of any number of arguments, which are numbers or markers.
+usage: (* &rest NUMBERS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("/", Fquo, Squo, 2, MANY, 0,
"Returns first argument divided by all the remaining arguments.\n\
-The arguments must be numbers or markers.")
+The arguments must be numbers or markers.
+usage: (/ DIVIDEND DIVISOR &rest DIVISORS)")
(nargs, args)
int nargs;
Lisp_Object *args;
}
DEFUN ("%", Frem, Srem, 2, 2, 0,
- "Returns remainder of first arg divided by second.\n\
-Both must be numbers or markers.")
- (num1, num2)
- register Lisp_Object num1, num2;
+ "Returns remainder of X divided by Y.\n\
+Both must be integers or markers.")
+ (x, y)
+ register Lisp_Object x, y;
{
Lisp_Object val;
-#ifdef LISP_FLOAT_TYPE
- CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num1, 0);
- CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num2, 0);
+ CHECK_NUMBER_COERCE_MARKER (x, 0);
+ CHECK_NUMBER_COERCE_MARKER (y, 1);
- if (XTYPE (num1) == Lisp_Float || XTYPE (num2) == Lisp_Float)
- {
- double f1, f2;
+ if (XFASTINT (y) == 0)
+ Fsignal (Qarith_error, Qnil);
- f1 = XTYPE (num1) == Lisp_Float ? XFLOAT (num1)->data : XINT (num1);
- f2 = XTYPE (num2) == Lisp_Float ? XFLOAT (num2)->data : XINT (num2);
- return (make_float (drem (f1,f2)));
- }
-#else /* not LISP_FLOAT_TYPE */
- CHECK_NUMBER_COERCE_MARKER (num1, 0);
- CHECK_NUMBER_COERCE_MARKER (num2, 1);
-#endif /* not LISP_FLOAT_TYPE */
+ XSETINT (val, XINT (x) % XINT (y));
+ return val;
+}
+
+#ifndef HAVE_FMOD
+double
+fmod (f1, f2)
+ double f1, f2;
+{
+ double r = f1;
+
+ if (f2 < 0.0)
+ f2 = -f2;
+
+ /* If the magnitude of the result exceeds that of the divisor, or
+ the sign of the result does not agree with that of the dividend,
+ iterate with the reduced value. This does not yield a
+ particularly accurate result, but at least it will be in the
+ range promised by fmod. */
+ do
+ r -= f2 * floor (r / f2);
+ while (f2 <= (r < 0 ? -r : r) || ((r < 0) != (f1 < 0) && ! isnan (r)));
+
+ return r;
+}
+#endif /* ! HAVE_FMOD */
+
+DEFUN ("mod", Fmod, Smod, 2, 2, 0,
+ "Returns X modulo Y.\n\
+The result falls between zero (inclusive) and Y (exclusive).\n\
+Both X and Y must be numbers or markers.")
+ (x, y)
+ register Lisp_Object x, y;
+{
+ Lisp_Object val;
+ EMACS_INT i1, i2;
+
+ CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (x, 0);
+ CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (y, 1);
- XSET (val, Lisp_Int, XINT (num1) % XINT (num2));
+ if (FLOATP (x) || FLOATP (y))
+ return fmod_float (x, y);
+
+ i1 = XINT (x);
+ i2 = XINT (y);
+
+ if (i2 == 0)
+ Fsignal (Qarith_error, Qnil);
+
+ i1 %= i2;
+
+ /* If the "remainder" comes out with the wrong sign, fix it. */
+ if (i2 < 0 ? i1 > 0 : i1 < 0)
+ i1 += i2;
+
+ XSETINT (val, i1);
return val;
}
DEFUN ("max", Fmax, Smax, 1, MANY, 0,
"Return largest of all the arguments (which must be numbers or markers).\n\
-The value is always a number; markers are converted to numbers.")
+The value is always a number; markers are converted to numbers.
+usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("min", Fmin, Smin, 1, MANY, 0,
"Return smallest of all the arguments (which must be numbers or markers).\n\
-The value is always a number; markers are converted to numbers.")
+The value is always a number; markers are converted to numbers.
+usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("logand", Flogand, Slogand, 0, MANY, 0,
"Return bitwise-and of all the arguments.\n\
-Arguments may be integers, or markers converted to integers.")
+Arguments may be integers, or markers converted to integers.
+usage: (logand &rest INTS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("logior", Flogior, Slogior, 0, MANY, 0,
"Return bitwise-or of all the arguments.\n\
-Arguments may be integers, or markers converted to integers.")
+Arguments may be integers, or markers converted to integers.
+usage: (logior &rest INTS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
DEFUN ("logxor", Flogxor, Slogxor, 0, MANY, 0,
"Return bitwise-exclusive-or of all the arguments.\n\
-Arguments may be integers, or markers converted to integers.")
+Arguments may be integers, or markers converted to integers.
+usage: (logxor &rest INTS-OR-MARKERS)")
(nargs, args)
int nargs;
Lisp_Object *args;
"Return VALUE with its bits shifted left by COUNT.\n\
If COUNT is negative, shifting is actually to the right.\n\
In this case, the sign bit is duplicated.")
- (num1, num2)
- register Lisp_Object num1, num2;
+ (value, count)
+ register Lisp_Object value, count;
{
register Lisp_Object val;
- CHECK_NUMBER (num1, 0);
- CHECK_NUMBER (num2, 1);
+ CHECK_NUMBER (value, 0);
+ CHECK_NUMBER (count, 1);
- if (XINT (num2) > 0)
- XSET (val, Lisp_Int, XINT (num1) << XFASTINT (num2));
+ if (XINT (count) >= BITS_PER_EMACS_INT)
+ XSETINT (val, 0);
+ else if (XINT (count) > 0)
+ XSETINT (val, XINT (value) << XFASTINT (count));
+ else if (XINT (count) <= -BITS_PER_EMACS_INT)
+ XSETINT (val, XINT (value) < 0 ? -1 : 0);
else
- XSET (val, Lisp_Int, XINT (num1) >> -XINT (num2));
+ XSETINT (val, XINT (value) >> -XINT (count));
return val;
}
"Return VALUE with its bits shifted left by COUNT.\n\
If COUNT is negative, shifting is actually to the right.\n\
In this case, zeros are shifted in on the left.")
- (num1, num2)
- register Lisp_Object num1, num2;
+ (value, count)
+ register Lisp_Object value, count;
{
register Lisp_Object val;
- CHECK_NUMBER (num1, 0);
- CHECK_NUMBER (num2, 1);
+ CHECK_NUMBER (value, 0);
+ CHECK_NUMBER (count, 1);
- if (XINT (num2) > 0)
- XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) << XFASTINT (num2));
+ if (XINT (count) >= BITS_PER_EMACS_INT)
+ XSETINT (val, 0);
+ else if (XINT (count) > 0)
+ XSETINT (val, (EMACS_UINT) XUINT (value) << XFASTINT (count));
+ else if (XINT (count) <= -BITS_PER_EMACS_INT)
+ XSETINT (val, 0);
else
- XSET (val, Lisp_Int, (unsigned) XFASTINT (num1) >> -XINT (num2));
+ XSETINT (val, (EMACS_UINT) XUINT (value) >> -XINT (count));
return val;
}
DEFUN ("1+", Fadd1, Sadd1, 1, 1, 0,
"Return NUMBER plus one. NUMBER may be a number or a marker.\n\
Markers are converted to integers.")
- (num)
- register Lisp_Object num;
+ (number)
+ register Lisp_Object number;
{
-#ifdef LISP_FLOAT_TYPE
- CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0);
+ CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0);
- if (XTYPE (num) == Lisp_Float)
- return (make_float (1.0 + XFLOAT (num)->data));
-#else
- CHECK_NUMBER_COERCE_MARKER (num, 0);
-#endif /* LISP_FLOAT_TYPE */
+ if (FLOATP (number))
+ return (make_float (1.0 + XFLOAT_DATA (number)));
- XSETINT (num, XFASTINT (num) + 1);
- return num;
+ XSETINT (number, XINT (number) + 1);
+ return number;
}
DEFUN ("1-", Fsub1, Ssub1, 1, 1, 0,
"Return NUMBER minus one. NUMBER may be a number or a marker.\n\
Markers are converted to integers.")
- (num)
- register Lisp_Object num;
+ (number)
+ register Lisp_Object number;
{
-#ifdef LISP_FLOAT_TYPE
- CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (num, 0);
+ CHECK_NUMBER_OR_FLOAT_COERCE_MARKER (number, 0);
- if (XTYPE (num) == Lisp_Float)
- return (make_float (-1.0 + XFLOAT (num)->data));
-#else
- CHECK_NUMBER_COERCE_MARKER (num, 0);
-#endif /* LISP_FLOAT_TYPE */
+ if (FLOATP (number))
+ return (make_float (-1.0 + XFLOAT_DATA (number)));
- XSETINT (num, XFASTINT (num) - 1);
- return num;
+ XSETINT (number, XINT (number) - 1);
+ return number;
}
DEFUN ("lognot", Flognot, Slognot, 1, 1, 0,
- "Return the bitwise complement of ARG. ARG must be an integer.")
- (num)
- register Lisp_Object num;
+ "Return the bitwise complement of NUMBER. NUMBER must be an integer.")
+ (number)
+ register Lisp_Object number;
{
- CHECK_NUMBER (num, 0);
- XSETINT (num, ~XFASTINT (num));
- return num;
+ CHECK_NUMBER (number, 0);
+ XSETINT (number, ~XINT (number));
+ return number;
}
\f
void
syms_of_data ()
{
+ Lisp_Object error_tail, arith_tail;
+
Qquote = intern ("quote");
Qlambda = intern ("lambda");
Qsubr = intern ("subr");
Qargs_out_of_range = intern ("args-out-of-range");
Qvoid_function = intern ("void-function");
Qcyclic_function_indirection = intern ("cyclic-function-indirection");
+ Qcyclic_variable_indirection = intern ("cyclic-variable-indirection");
Qvoid_variable = intern ("void-variable");
Qsetting_constant = intern ("setting-constant");
Qinvalid_read_syntax = intern ("invalid-read-syntax");
Qbeginning_of_buffer = intern ("beginning-of-buffer");
Qend_of_buffer = intern ("end-of-buffer");
Qbuffer_read_only = intern ("buffer-read-only");
+ Qtext_read_only = intern ("text-read-only");
+ Qmark_inactive = intern ("mark-inactive");
Qlistp = intern ("listp");
Qconsp = intern ("consp");
Qsymbolp = intern ("symbolp");
+ Qkeywordp = intern ("keywordp");
Qintegerp = intern ("integerp");
Qnatnump = intern ("natnump");
+ Qwholenump = intern ("wholenump");
Qstringp = intern ("stringp");
Qarrayp = intern ("arrayp");
Qsequencep = intern ("sequencep");
Qvectorp = intern ("vectorp");
Qchar_or_string_p = intern ("char-or-string-p");
Qmarkerp = intern ("markerp");
+ Qbuffer_or_string_p = intern ("buffer-or-string-p");
Qinteger_or_marker_p = intern ("integer-or-marker-p");
Qboundp = intern ("boundp");
Qfboundp = intern ("fboundp");
-#ifdef LISP_FLOAT_TYPE
Qfloatp = intern ("floatp");
Qnumberp = intern ("numberp");
Qnumber_or_marker_p = intern ("number-or-marker-p");
-#endif /* LISP_FLOAT_TYPE */
+
+ Qchar_table_p = intern ("char-table-p");
+ Qvector_or_char_table_p = intern ("vector-or-char-table-p");
+
+ Qsubrp = intern ("subrp");
+ Qunevalled = intern ("unevalled");
+ Qmany = intern ("many");
Qcdr = intern ("cdr");
+ /* Handle automatic advice activation */
+ Qad_advice_info = intern ("ad-advice-info");
+ Qad_activate_internal = intern ("ad-activate-internal");
+
+ error_tail = Fcons (Qerror, Qnil);
+
/* ERROR is used as a signaler for random errors for which nothing else is right */
Fput (Qerror, Qerror_conditions,
- Fcons (Qerror, Qnil));
+ error_tail);
Fput (Qerror, Qerror_message,
build_string ("error"));
build_string ("Quit"));
Fput (Qwrong_type_argument, Qerror_conditions,
- Fcons (Qwrong_type_argument, Fcons (Qerror, Qnil)));
+ Fcons (Qwrong_type_argument, error_tail));
Fput (Qwrong_type_argument, Qerror_message,
build_string ("Wrong type argument"));
Fput (Qargs_out_of_range, Qerror_conditions,
- Fcons (Qargs_out_of_range, Fcons (Qerror, Qnil)));
+ Fcons (Qargs_out_of_range, error_tail));
Fput (Qargs_out_of_range, Qerror_message,
build_string ("Args out of range"));
Fput (Qvoid_function, Qerror_conditions,
- Fcons (Qvoid_function, Fcons (Qerror, Qnil)));
+ Fcons (Qvoid_function, error_tail));
Fput (Qvoid_function, Qerror_message,
build_string ("Symbol's function definition is void"));
Fput (Qcyclic_function_indirection, Qerror_conditions,
- Fcons (Qcyclic_function_indirection, Fcons (Qerror, Qnil)));
+ Fcons (Qcyclic_function_indirection, error_tail));
Fput (Qcyclic_function_indirection, Qerror_message,
build_string ("Symbol's chain of function indirections contains a loop"));
+ Fput (Qcyclic_variable_indirection, Qerror_conditions,
+ Fcons (Qcyclic_variable_indirection, error_tail));
+ Fput (Qcyclic_variable_indirection, Qerror_message,
+ build_string ("Symbol's chain of variable indirections contains a loop"));
+
+ Qcircular_list = intern ("circular-list");
+ staticpro (&Qcircular_list);
+ Fput (Qcircular_list, Qerror_conditions,
+ Fcons (Qcircular_list, error_tail));
+ Fput (Qcircular_list, Qerror_message,
+ build_string ("List contains a loop"));
+
Fput (Qvoid_variable, Qerror_conditions,
- Fcons (Qvoid_variable, Fcons (Qerror, Qnil)));
+ Fcons (Qvoid_variable, error_tail));
Fput (Qvoid_variable, Qerror_message,
build_string ("Symbol's value as variable is void"));
Fput (Qsetting_constant, Qerror_conditions,
- Fcons (Qsetting_constant, Fcons (Qerror, Qnil)));
+ Fcons (Qsetting_constant, error_tail));
Fput (Qsetting_constant, Qerror_message,
build_string ("Attempt to set a constant symbol"));
Fput (Qinvalid_read_syntax, Qerror_conditions,
- Fcons (Qinvalid_read_syntax, Fcons (Qerror, Qnil)));
+ Fcons (Qinvalid_read_syntax, error_tail));
Fput (Qinvalid_read_syntax, Qerror_message,
build_string ("Invalid read syntax"));
Fput (Qinvalid_function, Qerror_conditions,
- Fcons (Qinvalid_function, Fcons (Qerror, Qnil)));
+ Fcons (Qinvalid_function, error_tail));
Fput (Qinvalid_function, Qerror_message,
build_string ("Invalid function"));
Fput (Qwrong_number_of_arguments, Qerror_conditions,
- Fcons (Qwrong_number_of_arguments, Fcons (Qerror, Qnil)));
+ Fcons (Qwrong_number_of_arguments, error_tail));
Fput (Qwrong_number_of_arguments, Qerror_message,
build_string ("Wrong number of arguments"));
Fput (Qno_catch, Qerror_conditions,
- Fcons (Qno_catch, Fcons (Qerror, Qnil)));
+ Fcons (Qno_catch, error_tail));
Fput (Qno_catch, Qerror_message,
build_string ("No catch for tag"));
Fput (Qend_of_file, Qerror_conditions,
- Fcons (Qend_of_file, Fcons (Qerror, Qnil)));
+ Fcons (Qend_of_file, error_tail));
Fput (Qend_of_file, Qerror_message,
build_string ("End of file during parsing"));
+ arith_tail = Fcons (Qarith_error, error_tail);
Fput (Qarith_error, Qerror_conditions,
- Fcons (Qarith_error, Fcons (Qerror, Qnil)));
+ arith_tail);
Fput (Qarith_error, Qerror_message,
build_string ("Arithmetic error"));
Fput (Qbeginning_of_buffer, Qerror_conditions,
- Fcons (Qbeginning_of_buffer, Fcons (Qerror, Qnil)));
+ Fcons (Qbeginning_of_buffer, error_tail));
Fput (Qbeginning_of_buffer, Qerror_message,
build_string ("Beginning of buffer"));
Fput (Qend_of_buffer, Qerror_conditions,
- Fcons (Qend_of_buffer, Fcons (Qerror, Qnil)));
+ Fcons (Qend_of_buffer, error_tail));
Fput (Qend_of_buffer, Qerror_message,
build_string ("End of buffer"));
Fput (Qbuffer_read_only, Qerror_conditions,
- Fcons (Qbuffer_read_only, Fcons (Qerror, Qnil)));
+ Fcons (Qbuffer_read_only, error_tail));
Fput (Qbuffer_read_only, Qerror_message,
build_string ("Buffer is read-only"));
+ Fput (Qtext_read_only, Qerror_conditions,
+ Fcons (Qtext_read_only, error_tail));
+ Fput (Qtext_read_only, Qerror_message,
+ build_string ("Text is read-only"));
+
+ Qrange_error = intern ("range-error");
+ Qdomain_error = intern ("domain-error");
+ Qsingularity_error = intern ("singularity-error");
+ Qoverflow_error = intern ("overflow-error");
+ Qunderflow_error = intern ("underflow-error");
+
+ Fput (Qdomain_error, Qerror_conditions,
+ Fcons (Qdomain_error, arith_tail));
+ Fput (Qdomain_error, Qerror_message,
+ build_string ("Arithmetic domain error"));
+
+ Fput (Qrange_error, Qerror_conditions,
+ Fcons (Qrange_error, arith_tail));
+ Fput (Qrange_error, Qerror_message,
+ build_string ("Arithmetic range error"));
+
+ Fput (Qsingularity_error, Qerror_conditions,
+ Fcons (Qsingularity_error, Fcons (Qdomain_error, arith_tail)));
+ Fput (Qsingularity_error, Qerror_message,
+ build_string ("Arithmetic singularity error"));
+
+ Fput (Qoverflow_error, Qerror_conditions,
+ Fcons (Qoverflow_error, Fcons (Qdomain_error, arith_tail)));
+ Fput (Qoverflow_error, Qerror_message,
+ build_string ("Arithmetic overflow error"));
+
+ Fput (Qunderflow_error, Qerror_conditions,
+ Fcons (Qunderflow_error, Fcons (Qdomain_error, arith_tail)));
+ Fput (Qunderflow_error, Qerror_message,
+ build_string ("Arithmetic underflow error"));
+
+ staticpro (&Qrange_error);
+ staticpro (&Qdomain_error);
+ staticpro (&Qsingularity_error);
+ staticpro (&Qoverflow_error);
+ staticpro (&Qunderflow_error);
+
staticpro (&Qnil);
staticpro (&Qt);
staticpro (&Qquote);
staticpro (&Qbeginning_of_buffer);
staticpro (&Qend_of_buffer);
staticpro (&Qbuffer_read_only);
+ staticpro (&Qtext_read_only);
+ staticpro (&Qmark_inactive);
staticpro (&Qlistp);
staticpro (&Qconsp);
staticpro (&Qsymbolp);
+ staticpro (&Qkeywordp);
staticpro (&Qintegerp);
staticpro (&Qnatnump);
+ staticpro (&Qwholenump);
staticpro (&Qstringp);
staticpro (&Qarrayp);
staticpro (&Qsequencep);
staticpro (&Qvectorp);
staticpro (&Qchar_or_string_p);
staticpro (&Qmarkerp);
+ staticpro (&Qbuffer_or_string_p);
staticpro (&Qinteger_or_marker_p);
-#ifdef LISP_FLOAT_TYPE
staticpro (&Qfloatp);
- staticpro (&Qinteger_or_floatp);
- staticpro (&Qinteger_or_float_or_marker_p);
-#endif /* LISP_FLOAT_TYPE */
+ staticpro (&Qnumberp);
+ staticpro (&Qnumber_or_marker_p);
+ staticpro (&Qchar_table_p);
+ staticpro (&Qvector_or_char_table_p);
+ staticpro (&Qsubrp);
+ staticpro (&Qmany);
+ staticpro (&Qunevalled);
staticpro (&Qboundp);
staticpro (&Qfboundp);
staticpro (&Qcdr);
-
+ staticpro (&Qad_advice_info);
+ staticpro (&Qad_activate_internal);
+
+ /* Types that type-of returns. */
+ Qinteger = intern ("integer");
+ Qsymbol = intern ("symbol");
+ Qstring = intern ("string");
+ Qcons = intern ("cons");
+ Qmarker = intern ("marker");
+ Qoverlay = intern ("overlay");
+ Qfloat = intern ("float");
+ Qwindow_configuration = intern ("window-configuration");
+ Qprocess = intern ("process");
+ Qwindow = intern ("window");
+ /* Qsubr = intern ("subr"); */
+ Qcompiled_function = intern ("compiled-function");
+ Qbuffer = intern ("buffer");
+ Qframe = intern ("frame");
+ Qvector = intern ("vector");
+ Qchar_table = intern ("char-table");
+ Qbool_vector = intern ("bool-vector");
+ Qhash_table = intern ("hash-table");
+
+ staticpro (&Qinteger);
+ staticpro (&Qsymbol);
+ staticpro (&Qstring);
+ staticpro (&Qcons);
+ staticpro (&Qmarker);
+ staticpro (&Qoverlay);
+ staticpro (&Qfloat);
+ staticpro (&Qwindow_configuration);
+ staticpro (&Qprocess);
+ staticpro (&Qwindow);
+ /* staticpro (&Qsubr); */
+ staticpro (&Qcompiled_function);
+ staticpro (&Qbuffer);
+ staticpro (&Qframe);
+ staticpro (&Qvector);
+ staticpro (&Qchar_table);
+ staticpro (&Qbool_vector);
+ staticpro (&Qhash_table);
+
+ defsubr (&Sindirect_variable);
+ defsubr (&Ssubr_interactive_form);
defsubr (&Seq);
defsubr (&Snull);
+ defsubr (&Stype_of);
defsubr (&Slistp);
defsubr (&Snlistp);
defsubr (&Sconsp);
defsubr (&Satom);
defsubr (&Sintegerp);
-#ifdef LISP_FLOAT_TYPE
- defsubr (&Sfloatp);
+ defsubr (&Sinteger_or_marker_p);
defsubr (&Snumberp);
defsubr (&Snumber_or_marker_p);
-#endif /* LISP_FLOAT_TYPE */
+ defsubr (&Sfloatp);
defsubr (&Snatnump);
defsubr (&Ssymbolp);
+ defsubr (&Skeywordp);
defsubr (&Sstringp);
+ defsubr (&Smultibyte_string_p);
defsubr (&Svectorp);
+ defsubr (&Schar_table_p);
+ defsubr (&Svector_or_char_table_p);
+ defsubr (&Sbool_vector_p);
defsubr (&Sarrayp);
defsubr (&Ssequencep);
defsubr (&Sbufferp);
defsubr (&Smarkerp);
- defsubr (&Sinteger_or_marker_p);
defsubr (&Ssubrp);
- defsubr (&Scompiled_function_p);
+ defsubr (&Sbyte_code_function_p);
defsubr (&Schar_or_string_p);
defsubr (&Scar);
defsubr (&Scdr);
defsubr (&Sboundp);
defsubr (&Sfboundp);
defsubr (&Sfset);
+ defsubr (&Sdefalias);
defsubr (&Ssetplist);
defsubr (&Ssymbol_value);
defsubr (&Sset);
defsubr (&Smake_variable_buffer_local);
defsubr (&Smake_local_variable);
defsubr (&Skill_local_variable);
+ defsubr (&Smake_variable_frame_local);
+ defsubr (&Slocal_variable_p);
+ defsubr (&Slocal_variable_if_set_p);
defsubr (&Saref);
defsubr (&Saset);
- defsubr (&Sint_to_string);
- defsubr (&Sstring_to_int);
+ defsubr (&Snumber_to_string);
+ defsubr (&Sstring_to_number);
defsubr (&Seqlsign);
defsubr (&Slss);
defsubr (&Sgtr);
defsubr (&Stimes);
defsubr (&Squo);
defsubr (&Srem);
+ defsubr (&Smod);
defsubr (&Smax);
defsubr (&Smin);
defsubr (&Slogand);
defsubr (&Sadd1);
defsubr (&Ssub1);
defsubr (&Slognot);
+ defsubr (&Ssubr_arity);
+
+ XSYMBOL (Qwholenump)->function = XSYMBOL (Qnatnump)->function;
+
+ DEFVAR_INT ("most-positive-fixnum", &most_positive_fixnum,
+ "The largest value that is representable in a Lisp integer.");
+ most_positive_fixnum = MOST_POSITIVE_FIXNUM;
+
+ DEFVAR_INT ("most-negative-fixnum", &most_negative_fixnum,
+ "The smallest value that is representable in a Lisp integer.");
+ most_negative_fixnum = MOST_NEGATIVE_FIXNUM;
}
SIGTYPE
arith_error (signo)
int signo;
{
-#ifdef USG
+#if defined(USG) && !defined(POSIX_SIGNALS)
/* USG systems forget handlers when they are used;
must reestablish each time */
signal (signo, arith_error);
Fsignal (Qarith_error, Qnil);
}
+void
init_data ()
{
/* Don't do this if just dumping out.
return;
#endif /* CANNOT_DUMP */
signal (SIGFPE, arith_error);
-
+
#ifdef uts
signal (SIGEMT, arith_error);
#endif /* uts */
}
+
+