that `readchar' has already advanced over. */
static int readchar_backlog;
-/* This contains the last string skipped with #@, but only on some systems.
- On other systems we can't put the string here. */
+/* This contains the last string skipped with #@. */
static char *saved_doc_string;
/* Length of buffer allocated in saved_doc_string. */
static int saved_doc_string_size;
/* This is the file position that string came from. */
static int saved_doc_string_position;
+/* This contains the previous string skipped with #@.
+ We copy it from saved_doc_string when a new string
+ is put in saved_doc_string. */
+static char *prev_saved_doc_string;
+/* Length of buffer allocated in prev_saved_doc_string. */
+static int prev_saved_doc_string_size;
+/* Length of actual data in prev_saved_doc_string. */
+static int prev_saved_doc_string_length;
+/* This is the file position that string came from. */
+static int prev_saved_doc_string_position;
+
/* Nonzero means inside a new-style backquote
with no surrounding parentheses.
Fread initializes this to zero, so we need not specbind it
saved_doc_string = 0;
saved_doc_string_size = 0;
+ if (prev_saved_doc_string)
+ free (prev_saved_doc_string);
+ prev_saved_doc_string = 0;
+ prev_saved_doc_string_size = 0;
+
if (!noninteractive && NILP (nomessage))
{
if (!compiled)
return read_list (0, readcharfun);
case '[':
- return read_vector (readcharfun);
+ return read_vector (readcharfun, 0);
case ')':
case ']':
if (c == '[')
{
Lisp_Object tmp;
- tmp = read_vector (readcharfun);
+ tmp = read_vector (readcharfun, 0);
if (XVECTOR (tmp)->size < CHAR_TABLE_STANDARD_SLOTS
|| XVECTOR (tmp)->size > CHAR_TABLE_STANDARD_SLOTS + 10)
error ("Invalid size char-table");
if (c == '[')
{
Lisp_Object tmp;
- tmp = read_vector (readcharfun);
+ tmp = read_vector (readcharfun, 0);
if (XVECTOR (tmp)->size != SUB_CHAR_TABLE_STANDARD_SLOTS)
error ("Invalid size char-table");
XSETCHAR_TABLE (tmp, XCHAR_TABLE (tmp));
/* Accept compiled functions at read-time so that we don't have to
build them using function calls. */
Lisp_Object tmp;
- tmp = read_vector (readcharfun);
+ tmp = read_vector (readcharfun, 1);
return Fmake_byte_code (XVECTOR (tmp)->size,
XVECTOR (tmp)->contents);
}
if (c >= 0)
UNREAD (c);
-#ifndef WINDOWSNT /* I don't know if filepos works right on Windoze. */
if (load_force_doc_strings && EQ (readcharfun, Qget_file_char))
{
/* If we are supposed to force doc strings into core right now,
record the last string that we skipped,
and record where in the file it comes from. */
+
+ /* But first exchange saved_doc_string
+ with prev_saved_doc_string, so we save two strings. */
+ {
+ char *temp = saved_doc_string;
+ int temp_size = saved_doc_string_size;
+ int temp_pos = saved_doc_string_position;
+ int temp_len = saved_doc_string_length;
+
+ saved_doc_string = prev_saved_doc_string;
+ saved_doc_string_size = prev_saved_doc_string_size;
+ saved_doc_string_position = prev_saved_doc_string_position;
+ saved_doc_string_length = prev_saved_doc_string_length;
+
+ prev_saved_doc_string = temp;
+ prev_saved_doc_string_size = temp_size;
+ prev_saved_doc_string_position = temp_pos;
+ prev_saved_doc_string_length = temp_len;
+ }
+
if (saved_doc_string_size == 0)
{
saved_doc_string_size = nskip + 100;
saved_doc_string_length = i;
}
else
-#endif /* not WINDOWSNT */
{
/* Skip that many characters. */
for (i = 0; i < nskip && c >= 0; i++)
#endif /* LISP_FLOAT_TYPE */
\f
static Lisp_Object
-read_vector (readcharfun)
+read_vector (readcharfun, bytecodeflag)
Lisp_Object readcharfun;
+ int bytecodeflag;
{
register int i;
register int size;
register Lisp_Object *ptr;
- register Lisp_Object tem, vector;
+ register Lisp_Object tem, item, vector;
register struct Lisp_Cons *otem;
Lisp_Object len;
len = Flength (tem);
vector = (read_pure ? make_pure_vector (XINT (len)) : Fmake_vector (len, Qnil));
-
size = XVECTOR (vector)->size;
ptr = XVECTOR (vector)->contents;
for (i = 0; i < size; i++)
{
- ptr[i] = read_pure ? Fpurecopy (Fcar (tem)) : Fcar (tem);
+ item = Fcar (tem);
+ /* If `load-force-doc-strings' is t when reading a lazily-loaded
+ bytecode object, the docstring containing the bytecode and
+ constants values must be treated as unibyte and passed to
+ Fread, to get the actual bytecode string and constants vector. */
+ if (bytecodeflag && load_force_doc_strings)
+ {
+ if (i == COMPILED_BYTECODE)
+ {
+ if (!STRINGP (item))
+ error ("invalid byte code");
+
+ /* Delay handling the bytecode slot until we know whether
+ it is lazily-loaded (we can tell by whether the
+ constants slot is nil). */
+ ptr[COMPILED_CONSTANTS] = item;
+ item = Qnil;
+ }
+ else if (i == COMPILED_CONSTANTS)
+ {
+ Lisp_Object bytestr = ptr[COMPILED_CONSTANTS];
+
+ if (NILP (item))
+ {
+ /* Coerce string to unibyte (like string-as-unibyte,
+ but without generating extra garbage and
+ guaranteeing no change in the contents). */
+ XSTRING (bytestr)->size = STRING_BYTES (XSTRING (bytestr));
+ SET_STRING_BYTES (XSTRING (bytestr), -1);
+
+ item = Fread (bytestr);
+ if (!CONSP (item))
+ error ("invalid byte code");
+
+ otem = XCONS (item);
+ bytestr = XCONS (item)->car;
+ item = XCONS (item)->cdr;
+ free_cons (otem);
+ }
+
+ /* Now handle the bytecode slot. */
+ ptr[COMPILED_BYTECODE] = read_pure ? Fpurecopy (bytestr) : bytestr;
+ }
+ }
+ ptr[i] = read_pure ? Fpurecopy (item) : item;
otem = XCONS (tem);
tem = Fcdr (tem);
free_cons (otem);
/* Get a doc string from the file we are loading.
If it's in saved_doc_string, get it from there. */
int pos = XINT (XCONS (val)->cdr);
+ /* Position is negative for user variables. */
+ if (pos < 0) pos = -pos;
if (pos >= saved_doc_string_position
&& pos < (saved_doc_string_position
+ saved_doc_string_length))
return make_string (saved_doc_string + start,
to - start);
}
+ /* Look in prev_saved_doc_string the same way. */
+ else if (pos >= prev_saved_doc_string_position
+ && pos < (prev_saved_doc_string_position
+ + prev_saved_doc_string_length))
+ {
+ int start = pos - prev_saved_doc_string_position;
+ int from, to;
+
+ /* Process quoting with ^A,
+ and find the end of the string,
+ which is marked with ^_ (037). */
+ for (from = start, to = start;
+ prev_saved_doc_string[from] != 037;)
+ {
+ int c = prev_saved_doc_string[from++];
+ if (c == 1)
+ {
+ c = prev_saved_doc_string[from++];
+ if (c == 1)
+ prev_saved_doc_string[to++] = c;
+ else if (c == '0')
+ prev_saved_doc_string[to++] = 0;
+ else if (c == '_')
+ prev_saved_doc_string[to++] = 037;
+ }
+ else
+ prev_saved_doc_string[to++] = c;
+ }
+
+ return make_string (prev_saved_doc_string + start,
+ to - start);
+ }
else
- return read_doc_string (val);
+ return get_doc_string (val, 0);
}
return val;
projects / emacs.git / commitdiff