static Lisp_Object Vbytecomp_version_regexp;
static void to_multibyte P_ ((char **, char **, int *));
-static void readevalloop P_ ((Lisp_Object, FILE*, Lisp_Object,
+static void readevalloop P_ ((Lisp_Object, FILE*, Lisp_Object,
Lisp_Object (*) (), int,
Lisp_Object, Lisp_Object));
static Lisp_Object load_unwind P_ ((Lisp_Object));
The READCHAR and UNREAD macros are meant for reading/unreading a
byte code; they do not handle multibyte characters. The caller
should manage them if necessary.
-
+
[ Actually that seems to be a lie; READCHAR will definitely read
multibyte characters from buffer sources, at least. Is the
comment just out of date?
register int c;
readchar_count++;
-
+
if (BUFFERP (readcharfun))
{
register struct buffer *inbuffer = XBUFFER (readcharfun);
static Lisp_Object read_internal_start P_ ((Lisp_Object, Lisp_Object,
Lisp_Object));
static Lisp_Object read0 P_ ((Lisp_Object));
-static Lisp_Object read1 P_ ((Lisp_Object, int *, int));
+static Lisp_Object read1 P_ ((Lisp_Object, int *, int));
static Lisp_Object read_list P_ ((int, Lisp_Object));
static Lisp_Object read_vector P_ ((Lisp_Object, int));
if (display_hourglass_p)
cancel_hourglass ();
#endif
-
+
delayed_switch_frame = Qnil;
/* Read until we get an acceptable event. */
XSETFASTINT (val, XINT (tem1) | XINT (Fcar (Fcdr (tem))));
}
}
-
+
/* If we don't have a character now, deal with it appropriately. */
if (!INTEGERP (val))
{
return Vloads_in_progress = old;
}
+/* This handler function is used via internal_condition_case_1. */
+
+static Lisp_Object
+load_error_handler (data)
+ Lisp_Object data;
+{
+ return Qnil;
+}
DEFUN ("load", Fload, Sload, 1, 5, 0,
doc: /* Execute a file of Lisp code named FILE.
First try FILE with `.elc' appended, then try with `.el',
- then try FILE unmodified. Environment variable references in FILE
+ then try FILE unmodified (the exact suffixes are determined by
+`load-suffixes'). Environment variable references in FILE
are replaced with their values by calling `substitute-in-file-name'.
This function searches the directories in `load-path'.
If optional second arg NOERROR is non-nil,
everywhere, it accidentally stayed here. Since then, enough people
supposedly have things like (load "$PROJECT/foo.el") in their .emacs
that it seemed risky to remove. */
- file = Fsubstitute_in_file_name (file);
+ if (! NILP (noerror))
+ {
+ file = internal_condition_case_1 (Fsubstitute_in_file_name, file,
+ Qt, load_error_handler);
+ if (NILP (file))
+ return Qnil;
+ }
+ else
+ file = Fsubstitute_in_file_name (file);
+
/* Avoid weird lossage with null string as arg,
since it would try to load a directory as a Lisp file */
if (fd == -1)
{
if (NILP (noerror))
- while (1)
- Fsignal (Qfile_error, Fcons (build_string ("Cannot open load file"),
- Fcons (file, Qnil)));
+ Fsignal (Qfile_error, Fcons (build_string ("Cannot open load file"),
+ Fcons (file, Qnil)));
else
return Qnil;
}
{
safe_p = 0;
if (!load_dangerous_libraries)
- error ("File `%s' was not compiled in Emacs",
- SDATA (found));
+ {
+ if (fd >= 0)
+ emacs_close (fd);
+ error ("File `%s' was not compiled in Emacs",
+ SDATA (found));
+ }
else if (!NILP (nomessage))
message_with_string ("File `%s' not compiled in Emacs", found, 1);
}
Lisp_Object file;
file = Fsubstring (found, make_number (0), make_number (-1));
message_with_string ("Source file `%s' newer than byte-compiled file",
- file, STRING_MULTIBYTE (file));
+ file, 1);
}
}
}
complete_filename_p (pathname)
Lisp_Object pathname;
{
- register unsigned char *s = SDATA (pathname);
+ register const unsigned char *s = SDATA (pathname);
return (IS_DIRECTORY_SEP (s[0])
|| (SCHARS (pathname) > 2
&& IS_DEVICE_SEP (s[1]) && IS_DIRECTORY_SEP (s[2]))
}
else
{
- char *pfn;
+ const char *pfn;
encoded_fn = ENCODE_FILE (string);
pfn = SDATA (encoded_fn);
{
newelt = XCAR (tem2);
- if (NILP (Fmemq (newelt, tem)))
+ if (NILP (Fmember (newelt, tem)))
Fsetcar (tail, Fcons (XCAR (tem),
Fcons (newelt, XCDR (tem))));
The optional fourth argument UNIBYTE specifies `load-convert-to-unibyte'
for this invocation.
-The optional fifth argument DO-ALLOW-PRINT, if not-nil, specifies that
+The optional fifth argument DO-ALLOW-PRINT, if non-nil, specifies that
`print' and related functions should work normally even if PRINTFLAG is nil.
This function preserves the position of point. */)
read_from_string_index_byte = string_char_to_byte (stream, startval);
read_from_string_limit = endval;
}
-
+
retval = read0 (stream);
if (EQ (Vread_with_symbol_positions, Qt)
|| EQ (Vread_with_symbol_positions, stream))
return c | alt_modifier;
case 's':
+ if (stringp)
+ return ' ';
c = READCHAR;
- if (c != '-')
- error ("Invalid escape character syntax");
+ if (c != '-') {
+ UNREAD (c);
+ return ' ';
+ }
c = READCHAR;
if (c == '\\')
c = read_escape (readcharfun, 0, byterep);
break;
}
}
-
+
*byterep = 1;
return i;
}
}
else if (c == '+')
c = READCHAR;
-
+
while (c >= 0)
{
int digit;
-
+
if (c >= '0' && c <= '9')
digit = c - '0';
else if (c >= 'a' && c <= 'z')
if (nbytes != *nchars)
nbytes = str_as_multibyte (read_buffer, read_buffer_size,
*p - read_buffer, nchars);
-
+
*p = read_buffer + nbytes;
}
== (SCHARS (tmp) - 1) * BITS_PER_CHAR))
Fsignal (Qinvalid_read_syntax,
Fcons (make_string ("#&...", 5), Qnil));
-
+
val = Fmake_bool_vector (length, Qnil);
bcopy (SDATA (tmp), XBOOL_VECTOR (val)->data,
size_in_chars);
UNGCPRO;
return tmp;
}
-
+
/* #@NUMBER is used to skip NUMBER following characters.
That's used in .elc files to skip over doc strings
and function definitions. */
}
if (c >= 0)
UNREAD (c);
-
+
if (load_force_doc_strings && EQ (readcharfun, Qget_file_char))
{
/* If we are supposed to force doc strings into core right now,
goto retry;
}
+ if (c == '!')
+ {
+ /* #! appears at the beginning of an executable file.
+ Skip the first line. */
+ while (c != '\n')
+ c = READCHAR;
+ goto retry;
+ }
if (c == '$')
return Vload_file_name;
if (c == '\'')
/* ...and #n# will use the real value from now on. */
Fsetcdr (cell, tem);
-
+
return tem;
}
/* #n# returns a previously read object. */
}
else if (c == 'r' || c == 'R')
return read_integer (readcharfun, n);
-
+
/* Fall through to error message. */
}
else if (c == 'x' || c == 'X')
case '?':
{
int discard;
+ int next_char;
+ int ok;
c = READCHAR;
if (c < 0)
end_of_file_error ();
+ /* Accept `single space' syntax like (list ? x) where the
+ whitespace character is SPC or TAB.
+ Other literal whitespace like NL, CR, and FF are not accepted,
+ as there are well-established escape sequences for these. */
+ if (c == ' ' || c == '\t')
+ return make_number (c);
+
if (c == '\\')
c = read_escape (readcharfun, 0, &discard);
else if (BASE_LEADING_CODE_P (c))
c = read_multibyte (c, readcharfun);
+ next_char = READCHAR;
+ if (next_char == '.')
+ {
+ /* Only a dotted-pair dot is valid after a char constant. */
+ int next_next_char = READCHAR;
+ UNREAD (next_next_char);
+
+ ok = (next_next_char <= 040
+ || index ("\"';([#?", next_next_char)
+ || (!first_in_list && next_next_char == '`')
+ || (new_backquote_flag && next_next_char == ','));
+ }
+ else
+ {
+ ok = (next_char <= 040
+ || index ("\"';()[]#?", next_char)
+ || (!first_in_list && next_char == '`')
+ || (new_backquote_flag && next_char == ','));
+ }
+ UNREAD (next_char);
+ if (!ok)
+ Fsignal (Qinvalid_read_syntax, Fcons (make_string ("?", 1), Qnil));
+
return make_number (c);
}
UNREAD (next_char);
if (next_char <= 040
- || index ("\"'`,(", next_char))
+ || index ("\"';([#?", next_char)
+ || (!first_in_list && next_char == '`')
+ || (new_backquote_flag && next_char == ','))
{
*pch = c;
return Qnil;
char *end = read_buffer + read_buffer_size;
while (c > 040
- && !(c == '\"' || c == '\'' || c == ';'
- || c == '(' || c == ')'
- || c == '[' || c == ']' || c == '#'))
+ && !index ("\"';()[]#", c)
+ && !(!first_in_list && c == '`')
+ && !(new_backquote_flag && c == ','))
{
if (end - p < MAX_MULTIBYTE_LENGTH)
{
p = read_buffer + offset;
end = read_buffer + read_buffer_size;
}
-
+
if (c == '\\')
{
c = READCHAR;
: intern (read_buffer);
if (EQ (Vread_with_symbol_positions, Qt)
|| EQ (Vread_with_symbol_positions, readcharfun))
- Vread_symbol_positions_list =
+ Vread_symbol_positions_list =
/* Kind of a hack; this will probably fail if characters
in the symbol name were escaped. Not really a big
deal, though. */
/* Make all the substitutions. */
check_object
= substitute_object_recurse (object, placeholder, object);
-
+
/* Clear seen_list because we're done with it. */
seen_list = Qnil;
read_objects. */
if (!EQ (Qnil, Frassq (subtree, read_objects)))
seen_list = Fcons (subtree, seen_list);
-
+
/* Recurse according to subtree's type.
Every branch must return a Lisp_Object. */
switch (XTYPE (subtree))
{
Lisp_Object idx = make_number (i);
SUBSTITUTE (Faref (subtree, idx),
- Faset (subtree, idx, true_value));
+ Faset (subtree, idx, true_value));
}
return subtree;
}
INTERVAL root_interval = STRING_INTERVALS (subtree);
Lisp_Object arg = Fcons (object, placeholder);
-
+
traverse_intervals_noorder (root_interval,
&substitute_in_interval, arg);
register char *cp;
{
register int state;
-
+
char *start = cp;
state = 0;
}
return vector;
}
-
+
/* FLAG = 1 means check for ] to terminate rather than ) and .
FLAG = -1 means check for starting with defun
and make structure pure. */
struct gcpro gcpro1, gcpro2;
/* 0 is the normal case.
1 means this list is a doc reference; replace it with the number 0.
- 2 means this list is a doc reference; replace it with the doc string. */
+ 2 means this list is a doc reference; replace it with the doc string. */
int doc_reference = 0;
/* Initialize this to 1 if we are reading a list. */
int oblookup_last_bucket_number;
static int hash_string ();
-Lisp_Object oblookup ();
/* Get an error if OBARRAY is not an obarray.
If it is one, return it. */
Lisp_Object
intern (str)
- char *str;
+ const char *str;
{
Lisp_Object tem;
int len = strlen (str);
(name, obarray)
Lisp_Object name, obarray;
{
- register Lisp_Object tem;
- struct Lisp_String *string;
+ register Lisp_Object tem, string;
if (NILP (obarray)) obarray = Vobarray;
obarray = check_obarray (obarray);
if (!SYMBOLP (name))
{
CHECK_STRING (name);
- string = XSTRING (name);
+ string = name;
}
else
- string = XSTRING (SYMBOL_NAME (name));
+ string = SYMBOL_NAME (name);
- tem = oblookup (obarray, string->data, string->size, STRING_BYTES (string));
+ tem = oblookup (obarray, SDATA (string), SCHARS (string), SBYTES (string));
if (INTEGERP (tem) || (SYMBOLP (name) && !EQ (name, tem)))
return Qnil;
else
Lisp_Object
oblookup (obarray, ptr, size, size_byte)
Lisp_Object obarray;
- register char *ptr;
+ register const char *ptr;
int size, size_byte;
{
int hash;
static int
hash_string (ptr, len)
- unsigned char *ptr;
+ const unsigned char *ptr;
int len;
{
- register unsigned char *p = ptr;
- register unsigned char *end = p + len;
+ register const unsigned char *p = ptr;
+ register const unsigned char *end = p + len;
register unsigned char c;
register int hash = 0;
/* Intern nil in the obarray */
XSYMBOL (Qnil)->interned = SYMBOL_INTERNED_IN_INITIAL_OBARRAY;
XSYMBOL (Qnil)->constant = 1;
-
+
/* These locals are to kludge around a pyramid compiler bug. */
hash = hash_string ("nil", 3);
/* Separate statement here to avoid VAXC bug. */
SET_SYMBOL_VALUE (sym, val);
PER_BUFFER_SYMBOL (offset) = sym;
PER_BUFFER_TYPE (offset) = type;
-
+
if (PER_BUFFER_IDX (offset) == 0)
/* Did a DEFVAR_PER_BUFFER without initializing the corresponding
slot of buffer_local_flags */
#endif
#ifndef WINDOWSNT
- /* When Emacs is invoked over network shares on NT, PATH_LOADSEARCH is
- almost never correct, thereby causing a warning to be printed out that
+ /* When Emacs is invoked over network shares on NT, PATH_LOADSEARCH is
+ almost never correct, thereby causing a warning to be printed out that
confuses users. Since PATH_LOADSEARCH is always overridden by the
EMACSLOADPATH environment variable below, disable the warning on NT. */
Vread_with_symbol_positions = Qnil;
DEFVAR_LISP ("read-symbol-positions-list", &Vread_symbol_positions_list,
- doc: /* An list mapping read symbols to their positions.
+ doc: /* A list mapping read symbols to their positions.
This variable is modified during calls to `read' or
`read-from-string', but only when `read-with-symbol-positions' is
non-nil.
Each element of the list looks like (SYMBOL . CHAR-POSITION), where
-CHAR-POSITION is an integer giving the offset of that occurence of the
+CHAR-POSITION is an integer giving the offset of that occurrence of the
symbol from the position where `read' or `read-from-string' started.
Note that a symbol will appear multiple times in this list, if it was
read multiple times. The list is in the same order as the symbols
were read in. */);
- Vread_symbol_positions_list = Qnil;
+ Vread_symbol_positions_list = Qnil;
DEFVAR_LISP ("load-path", &Vload_path,
doc: /* *List of directories to search for files to load.
Each alist element is a list that starts with a file name,
except for one element (optional) that starts with nil and describes
definitions evaluated from buffers not visiting files.
-The remaining elements of each list are symbols defined as functions
-or variables, and cons cells `(provide . FEATURE)', `(require . FEATURE)',
-and `(autoload . SYMBOL)'. */);
+The remaining elements of each list are symbols defined as functions,
+and cons cells of the form `(provide . FEATURE)', `(require . FEATURE)',
+`(defvar . VARIABLE), `(autoload . SYMBOL)', and `(t . SYMBOL)'.
+An element `(t . SYMBOL)' precedes an entry that is just SYMBOL,
+and means that SYMBOL was an autoload before this file redefined it
+as a function. */);
Vload_history = Qnil;
DEFVAR_LISP ("load-file-name", &Vload_file_name,
staticpro (&read_objects);
read_objects = Qnil;
staticpro (&seen_list);
-
+
Vloads_in_progress = Qnil;
staticpro (&Vloads_in_progress);
}
HCoop / bpt / emacs.git / blobdiff