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authorKaroly Lorentey <[email protected]>2006-06-12 07:27:12 +0000
committerKaroly Lorentey <[email protected]>2006-06-12 07:27:12 +0000
commit476e9367ec1f440aa23904b7bc482ea4a3b8041c (patch)
tree4f7f5a5e9a6668f908834bb6e216c8fa3727d4b3 /src/lread.c
parenta13f8f50d4cc544d3bbfa78568e82ce09e68bded (diff)
parent6b519504c3297595101628e823e72c91e562ab45 (diff)
Merged from [email protected].
Patches applied: * [email protected]/emacs--devo--0--patch-294 Update from CVS * [email protected]/emacs--devo--0--patch-295 Merge from gnus--rel--5.10 * [email protected]/emacs--devo--0--patch-296 Update from CVS: admin/FOR-RELEASE: Update refcard section. * [email protected]/emacs--devo--0--patch-297 Update from CVS * [email protected]/emacs--devo--0--patch-298 Update from CVS * [email protected]/emacs--devo--0--patch-299 Update from CVS * [email protected]/emacs--devo--0--patch-300 Update from CVS * [email protected]/emacs--devo--0--patch-301 Update from CVS * [email protected]/emacs--devo--0--patch-302 Update from CVS * [email protected]/emacs--devo--0--patch-303 Update from CVS * [email protected]/emacs--devo--0--patch-304 Update from CVS * [email protected]/gnus--rel--5.10--patch-103 Update from CVS * [email protected]/gnus--rel--5.10--patch-104 Update from CVS git-archimport-id: [email protected]/emacs--multi-tty--0--patch-570
Diffstat (limited to 'src/lread.c')
-rw-r--r--src/lread.c119
1 files changed, 97 insertions, 22 deletions
diff --git a/src/lread.c b/src/lread.c
index 8d0d6b098c..797ae1078f 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -89,6 +89,7 @@ Lisp_Object Qascii_character, Qload, Qload_file_name;
Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction;
Lisp_Object Qinhibit_file_name_operation;
Lisp_Object Qeval_buffer_list, Veval_buffer_list;
+Lisp_Object Qfile_truename, Qdo_after_load_evaluation; /* ACM 2006/5/16 */
extern Lisp_Object Qevent_symbol_element_mask;
extern Lisp_Object Qfile_exists_p;
@@ -720,8 +721,8 @@ Return t if the file exists and loads successfully. */)
register int fd = -1;
int count = SPECPDL_INDEX ();
Lisp_Object temp;
- struct gcpro gcpro1, gcpro2;
- Lisp_Object found, efound;
+ struct gcpro gcpro1, gcpro2, gcpro3;
+ Lisp_Object found, efound, hist_file_name;
/* 1 means we printed the ".el is newer" message. */
int newer = 0;
/* 1 means we are loading a compiled file. */
@@ -729,6 +730,7 @@ Return t if the file exists and loads successfully. */)
Lisp_Object handler;
int safe_p = 1;
char *fmode = "r";
+ Lisp_Object tmp[2];
#ifdef DOS_NT
fmode = "rt";
#endif /* DOS_NT */
@@ -745,7 +747,7 @@ Return t if the file exists and loads successfully. */)
the need to gcpro noerror, nomessage and nosuffix.
(Below here, we care only whether they are nil or not.)
The presence of this call is the result of a historical accident:
- it used to be in every file-operations and when it got removed
+ it used to be in every file-operation and when it got removed
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. */
@@ -765,7 +767,6 @@ Return t if the file exists and loads successfully. */)
if (SCHARS (file) > 0)
{
int size = SBYTES (file);
- Lisp_Object tmp[2];
found = Qnil;
GCPRO2 (file, found);
@@ -849,6 +850,13 @@ Return t if the file exists and loads successfully. */)
Vloads_in_progress = Fcons (found, Vloads_in_progress);
}
+ /* Get the name for load-history. */
+ hist_file_name = (! NILP (Vpurify_flag)
+ ? Fconcat (2, (tmp[0] = Ffile_name_directory (file),
+ tmp[1] = Ffile_name_nondirectory (found),
+ tmp))
+ : found) ;
+
if (!bcmp (SDATA (found) + SBYTES (found) - 4,
".elc", 4))
/* Load .elc files directly, but not when they are
@@ -859,7 +867,7 @@ Return t if the file exists and loads successfully. */)
struct stat s1, s2;
int result;
- GCPRO2 (file, found);
+ GCPRO3 (file, found, hist_file_name);
if (!safe_to_load_p (fd))
{
@@ -913,14 +921,14 @@ Return t if the file exists and loads successfully. */)
if (fd >= 0)
emacs_close (fd);
- val = call4 (Vload_source_file_function, found, file,
+ val = call4 (Vload_source_file_function, found, hist_file_name,
NILP (noerror) ? Qnil : Qt,
NILP (nomessage) ? Qnil : Qt);
return unbind_to (count, val);
}
}
- GCPRO2 (file, found);
+ GCPRO3 (file, found, hist_file_name);
#ifdef WINDOWSNT
emacs_close (fd);
@@ -959,14 +967,15 @@ Return t if the file exists and loads successfully. */)
load_descriptor_list
= Fcons (make_number (fileno (stream)), load_descriptor_list);
load_in_progress++;
- readevalloop (Qget_file_char, stream, (! NILP (Vpurify_flag) ? file : found),
+ readevalloop (Qget_file_char, stream, hist_file_name,
Feval, 0, Qnil, Qnil, Qnil, Qnil);
unbind_to (count, Qnil);
- /* Run any load-hooks for this file. */
- temp = Fassoc (file, Vafter_load_alist);
- if (!NILP (temp))
- Fprogn (Fcdr (temp));
+ /* Run any eval-after-load forms for this file */
+ if (NILP (Vpurify_flag)
+ && (!NILP (Ffboundp (Qdo_after_load_evaluation))))
+ call1 (Qdo_after_load_evaluation, hist_file_name) ;
+
UNGCPRO;
if (saved_doc_string)
@@ -1393,6 +1402,12 @@ readevalloop (readcharfun, stream, sourcename, evalfun,
GCPRO4 (sourcename, readfun, start, end);
+ /* Try to ensure sourcename is a truename, except whilst preloading. */
+ if (NILP (Vpurify_flag)
+ && !NILP (sourcename) && Ffile_name_absolute_p (sourcename)
+ && (!NILP (Ffboundp (Qfile_truename))))
+ sourcename = call1 (Qfile_truename, sourcename) ;
+
LOADHIST_ATTACH (sourcename);
continue_reading_p = 1;
@@ -1751,6 +1766,9 @@ read_escape (readcharfun, stringp, byterep)
int *byterep;
{
register int c = READCHAR;
+ /* \u allows up to four hex digits, \U up to eight. Default to the
+ behaviour for \u, and change this value in the case that \U is seen. */
+ int unicode_hex_count = 4;
*byterep = 0;
@@ -1915,6 +1933,52 @@ read_escape (readcharfun, stringp, byterep)
return i;
}
+ case 'U':
+ /* Post-Unicode-2.0: Up to eight hex chars. */
+ unicode_hex_count = 8;
+ case 'u':
+
+ /* A Unicode escape. We only permit them in strings and characters,
+ not arbitrarily in the source code, as in some other languages. */
+ {
+ int i = 0;
+ int count = 0;
+ Lisp_Object lisp_char;
+ struct gcpro gcpro1;
+
+ while (++count <= unicode_hex_count)
+ {
+ c = READCHAR;
+ /* isdigit(), isalpha() may be locale-specific, which we don't
+ want. */
+ if (c >= '0' && c <= '9') i = (i << 4) + (c - '0');
+ else if (c >= 'a' && c <= 'f') i = (i << 4) + (c - 'a') + 10;
+ else if (c >= 'A' && c <= 'F') i = (i << 4) + (c - 'A') + 10;
+ else
+ {
+ error ("Non-hex digit used for Unicode escape");
+ break;
+ }
+ }
+
+ GCPRO1 (readcharfun);
+ lisp_char = call2(intern("decode-char"), intern("ucs"),
+ make_number(i));
+ UNGCPRO;
+
+ if (EQ(Qnil, lisp_char))
+ {
+ /* This is ugly and horrible and trashes the user's data. */
+ XSETFASTINT (i, MAKE_CHAR (charset_katakana_jisx0201,
+ 34 + 128, 46 + 128));
+ return i;
+ }
+ else
+ {
+ return XFASTINT (lisp_char);
+ }
+ }
+
default:
if (BASE_LEADING_CODE_P (c))
c = read_multibyte (c, readcharfun);
@@ -3973,16 +4037,17 @@ customize `jka-compr-load-suffixes' rather than the present variable. */);
DEFVAR_LISP ("after-load-alist", &Vafter_load_alist,
doc: /* An alist of expressions to be evalled when particular files are loaded.
-Each element looks like (FILENAME FORMS...).
-When `load' is run and the file-name argument is FILENAME,
-the FORMS in the corresponding element are executed at the end of loading.
-
-FILENAME must match exactly! Normally FILENAME is the name of a library,
-with no directory specified, since that is how `load' is normally called.
-An error in FORMS does not undo the load,
-but does prevent execution of the rest of the FORMS.
-FILENAME can also be a symbol (a feature) and FORMS are then executed
-when the corresponding call to `provide' is made. */);
+Each element looks like (REGEXP-OR-FEATURE FORMS...).
+
+REGEXP-OR-FEATURE is either a regular expression to match file names, or
+a symbol \(a feature name).
+
+When `load' is run and the file-name argument matches an element's
+REGEXP-OR-FEATURE, or when `provide' is run and provides the symbol
+REGEXP-OR-FEATURE, the FORMS in the element are executed.
+
+An error in FORMS does not undo the load, but does prevent execution of
+the rest of the FORMS. */);
Vafter_load_alist = Qnil;
DEFVAR_LISP ("load-history", &Vload_history,
@@ -3990,6 +4055,10 @@ when the corresponding call to `provide' is made. */);
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 file name is absolute and is the true file name (i.e. it doesn't
+contain symbolic links) of the loaded file.
+
The remaining elements of each list are symbols defined as variables
and cons cells of the form `(provide . FEATURE)', `(require . FEATURE)',
`(defun . FUNCTION)', `(autoload . SYMBOL)', and `(t . SYMBOL)'.
@@ -4120,6 +4189,12 @@ to load. See also `load-dangerous-libraries'. */);
Qeval_buffer_list = intern ("eval-buffer-list");
staticpro (&Qeval_buffer_list);
+ Qfile_truename = intern ("file-truename");
+ staticpro (&Qfile_truename) ;
+
+ Qdo_after_load_evaluation = intern ("do-after-load-evaluation");
+ staticpro (&Qdo_after_load_evaluation) ;
+
staticpro (&dump_path);
staticpro (&read_objects);