mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-27 10:54:40 +00:00
Revert "Revert part of 59732a83c8 to fix bug#52969"
This reverts commit 460f35e96d.
Re-remove the code that scans .el files for docstrings, now
that even `lisp/loaddefs.el` is compiled.
* lib-src/make-docfile.c (scan_file): Don't call `scan_lisp_file`.
(scan_lisp_file, skip_white, read_lisp_symbol, search_lisp_doc_at_eol):
Delete functions.
This commit is contained in:
Stefan Monnier
parent
eb2f394289
commit
9e9b0e13bc
@ -19,8 +19,8 @@ You should have received a copy of the GNU General Public License
|
||||
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
|
||||
|
||||
|
||||
/* The arguments given to this program are all the C and some Lisp source files
|
||||
of GNU Emacs. .el and .c files are allowed.
|
||||
/* The arguments given to this program are all the C files
|
||||
of GNU Emacs. .c files are allowed.
|
||||
A .o file can also be specified; the .c file it was made from is used.
|
||||
This helps the makefile pass the correct list of files.
|
||||
Option -d DIR means change to DIR before looking for files.
|
||||
@ -66,7 +66,6 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
|
||||
#endif /* not DOS_NT */
|
||||
|
||||
static void scan_file (char *filename);
|
||||
static void scan_lisp_file (const char *filename, const char *mode);
|
||||
static void scan_c_file (char *filename, const char *mode);
|
||||
static void scan_c_stream (FILE *infile);
|
||||
static void start_globals (void);
|
||||
@ -236,13 +235,8 @@ put_filename (char *filename)
|
||||
static void
|
||||
scan_file (char *filename)
|
||||
{
|
||||
ptrdiff_t len = strlen (filename);
|
||||
|
||||
if (!generate_globals)
|
||||
put_filename (filename);
|
||||
if (len > 3 && !strcmp (filename + len - 3, ".el"))
|
||||
scan_lisp_file (filename, "r");
|
||||
else
|
||||
scan_c_file (filename, "r");
|
||||
}
|
||||
|
||||
@ -1221,352 +1215,4 @@ scan_c_stream (FILE *infile)
|
||||
fatal ("read error");
|
||||
}
|
||||
|
||||
/* Read a file of Lisp source code.
|
||||
Looks for
|
||||
(defun NAME ARGS DOCSTRING ...)
|
||||
(defmacro NAME ARGS DOCSTRING ...)
|
||||
(defsubst NAME ARGS DOCSTRING ...)
|
||||
(autoload (quote NAME) FILE DOCSTRING ...)
|
||||
(defvar NAME VALUE DOCSTRING)
|
||||
(defconst NAME VALUE DOCSTRING)
|
||||
(fset (quote NAME) (make-byte-code ... DOCSTRING ...))
|
||||
(fset (quote NAME) #[... DOCSTRING ...])
|
||||
(defalias (quote NAME) #[... DOCSTRING ...])
|
||||
(custom-declare-variable (quote NAME) VALUE DOCSTRING ...)
|
||||
starting in column zero.
|
||||
(quote NAME) may appear as 'NAME as well.
|
||||
|
||||
We also look for #@LENGTH CONTENTS^_ at the beginning of the line.
|
||||
When we find that, we save it for the following defining-form,
|
||||
and we use that instead of reading a doc string within that defining-form.
|
||||
|
||||
For defvar, defconst, and fset we skip to the docstring with a kludgy
|
||||
formatting convention: all docstrings must appear on the same line as the
|
||||
initial open-paren (the one in column zero) and must contain a backslash
|
||||
and a newline immediately after the initial double-quote. No newlines
|
||||
must appear between the beginning of the form and the first double-quote.
|
||||
For defun, defmacro, and autoload, we know how to skip over the
|
||||
arglist, but the doc string must still have a backslash and newline
|
||||
immediately after the double quote.
|
||||
The only source files that follow this convention are autoload-generated
|
||||
files like loaddefs.el;
|
||||
The NAME and DOCSTRING are output.
|
||||
NAME is preceded by `F' for a function or `V' for a variable.
|
||||
An entry is output only if DOCSTRING has \ newline just after the opening ".
|
||||
*/
|
||||
|
||||
static void
|
||||
skip_white (FILE *infile)
|
||||
{
|
||||
int c;
|
||||
do
|
||||
c = getc (infile);
|
||||
while (c_isspace (c));
|
||||
|
||||
ungetc (c, infile);
|
||||
}
|
||||
|
||||
static void
|
||||
read_lisp_symbol (FILE *infile, char *buffer)
|
||||
{
|
||||
int c;
|
||||
char *fillp = buffer;
|
||||
|
||||
skip_white (infile);
|
||||
while (true)
|
||||
{
|
||||
c = getc (infile);
|
||||
if (c == '\\')
|
||||
{
|
||||
c = getc (infile);
|
||||
if (c < 0)
|
||||
return;
|
||||
*fillp++ = c;
|
||||
}
|
||||
else if (c_isspace (c) || c == '(' || c == ')' || c < 0)
|
||||
{
|
||||
ungetc (c, infile);
|
||||
*fillp = 0;
|
||||
break;
|
||||
}
|
||||
else
|
||||
*fillp++ = c;
|
||||
}
|
||||
|
||||
if (! buffer[0])
|
||||
fprintf (stderr, "## expected a symbol, got '%c'\n", c);
|
||||
|
||||
skip_white (infile);
|
||||
}
|
||||
|
||||
static bool
|
||||
search_lisp_doc_at_eol (FILE *infile)
|
||||
{
|
||||
int c = 0, c1 = 0, c2 = 0;
|
||||
|
||||
/* Skip until the end of line; remember two previous chars. */
|
||||
while (c != '\n' && c != '\r' && c != EOF)
|
||||
{
|
||||
c2 = c1;
|
||||
c1 = c;
|
||||
c = getc (infile);
|
||||
}
|
||||
|
||||
/* If two previous characters were " and \,
|
||||
this is a doc string. Otherwise, there is none. */
|
||||
if (c2 != '"' || c1 != '\\')
|
||||
{
|
||||
#ifdef DEBUG
|
||||
fprintf (stderr, "## non-docstring found\n");
|
||||
#endif
|
||||
ungetc (c, infile);
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static void
|
||||
scan_lisp_file (const char *filename, const char *mode)
|
||||
{
|
||||
FILE *infile;
|
||||
int c;
|
||||
|
||||
if (generate_globals)
|
||||
fatal ("scanning lisp file when -g specified");
|
||||
|
||||
infile = fopen (filename, mode);
|
||||
if (infile == NULL)
|
||||
{
|
||||
perror (filename);
|
||||
exit (EXIT_FAILURE);
|
||||
}
|
||||
|
||||
c = '\n';
|
||||
while (!feof (infile))
|
||||
{
|
||||
char buffer[BUFSIZ];
|
||||
char type;
|
||||
|
||||
/* If not at end of line, skip till we get to one. */
|
||||
if (c != '\n' && c != '\r')
|
||||
{
|
||||
c = getc (infile);
|
||||
continue;
|
||||
}
|
||||
/* Skip the line break. */
|
||||
while (c == '\n' || c == '\r')
|
||||
c = getc (infile);
|
||||
|
||||
if (c != '(')
|
||||
continue;
|
||||
|
||||
read_lisp_symbol (infile, buffer);
|
||||
|
||||
if (! strcmp (buffer, "defun")
|
||||
|| ! strcmp (buffer, "defmacro")
|
||||
|| ! strcmp (buffer, "defsubst"))
|
||||
{
|
||||
type = 'F';
|
||||
read_lisp_symbol (infile, buffer);
|
||||
|
||||
/* Skip the arguments: either "nil" or a list in parens. */
|
||||
|
||||
c = getc (infile);
|
||||
if (c == 'n') /* nil */
|
||||
{
|
||||
if ((c = getc (infile)) != 'i'
|
||||
|| (c = getc (infile)) != 'l')
|
||||
{
|
||||
fprintf (stderr, "## unparsable arglist in %s (%s)\n",
|
||||
buffer, filename);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
else if (c != '(')
|
||||
{
|
||||
fprintf (stderr, "## unparsable arglist in %s (%s)\n",
|
||||
buffer, filename);
|
||||
continue;
|
||||
}
|
||||
else
|
||||
while (! (c == ')' || c < 0))
|
||||
c = getc (infile);
|
||||
skip_white (infile);
|
||||
|
||||
/* If the next three characters aren't `dquote bslash newline'
|
||||
then we're not reading a docstring.
|
||||
*/
|
||||
if ((c = getc (infile)) != '"'
|
||||
|| (c = getc (infile)) != '\\'
|
||||
|| ((c = getc (infile)) != '\n' && c != '\r'))
|
||||
{
|
||||
#ifdef DEBUG
|
||||
fprintf (stderr, "## non-docstring in %s (%s)\n",
|
||||
buffer, filename);
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
else if (! strcmp (buffer, "defvar")
|
||||
|| ! strcmp (buffer, "defconst")
|
||||
|| ! strcmp (buffer, "defcustom"))
|
||||
{
|
||||
type = 'V';
|
||||
read_lisp_symbol (infile, buffer);
|
||||
|
||||
if (!search_lisp_doc_at_eol (infile))
|
||||
continue;
|
||||
}
|
||||
|
||||
else if (! strcmp (buffer, "custom-declare-variable")
|
||||
|| ! strcmp (buffer, "defvaralias")
|
||||
)
|
||||
{
|
||||
type = 'V';
|
||||
|
||||
c = getc (infile);
|
||||
if (c == '\'')
|
||||
read_lisp_symbol (infile, buffer);
|
||||
else
|
||||
{
|
||||
if (c != '(')
|
||||
{
|
||||
fprintf (stderr,
|
||||
"## unparsable name in custom-declare-variable in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
if (strcmp (buffer, "quote"))
|
||||
{
|
||||
fprintf (stderr,
|
||||
"## unparsable name in custom-declare-variable in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
c = getc (infile);
|
||||
if (c != ')')
|
||||
{
|
||||
fprintf (stderr,
|
||||
"## unparsable quoted name in custom-declare-variable in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (!search_lisp_doc_at_eol (infile))
|
||||
continue;
|
||||
}
|
||||
|
||||
else if (! strcmp (buffer, "fset") || ! strcmp (buffer, "defalias"))
|
||||
{
|
||||
type = 'F';
|
||||
|
||||
c = getc (infile);
|
||||
if (c == '\'')
|
||||
read_lisp_symbol (infile, buffer);
|
||||
else
|
||||
{
|
||||
if (c != '(')
|
||||
{
|
||||
fprintf (stderr, "## unparsable name in fset in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
if (strcmp (buffer, "quote"))
|
||||
{
|
||||
fprintf (stderr, "## unparsable name in fset in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
c = getc (infile);
|
||||
if (c != ')')
|
||||
{
|
||||
fprintf (stderr,
|
||||
"## unparsable quoted name in fset in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (!search_lisp_doc_at_eol (infile))
|
||||
continue;
|
||||
}
|
||||
|
||||
else if (! strcmp (buffer, "autoload"))
|
||||
{
|
||||
type = 'F';
|
||||
c = getc (infile);
|
||||
if (c == '\'')
|
||||
read_lisp_symbol (infile, buffer);
|
||||
else
|
||||
{
|
||||
if (c != '(')
|
||||
{
|
||||
fprintf (stderr, "## unparsable name in autoload in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
if (strcmp (buffer, "quote"))
|
||||
{
|
||||
fprintf (stderr, "## unparsable name in autoload in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
read_lisp_symbol (infile, buffer);
|
||||
c = getc (infile);
|
||||
if (c != ')')
|
||||
{
|
||||
fprintf (stderr,
|
||||
"## unparsable quoted name in autoload in %s\n",
|
||||
filename);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
skip_white (infile);
|
||||
c = getc (infile);
|
||||
if (c != '\"')
|
||||
{
|
||||
fprintf (stderr, "## autoload of %s unparsable (%s)\n",
|
||||
buffer, filename);
|
||||
continue;
|
||||
}
|
||||
read_c_string_or_comment (infile, 0, false, 0);
|
||||
|
||||
if (!search_lisp_doc_at_eol (infile))
|
||||
continue;
|
||||
}
|
||||
|
||||
#ifdef DEBUG
|
||||
else if (! strcmp (buffer, "if")
|
||||
|| ! strcmp (buffer, "byte-code"))
|
||||
continue;
|
||||
#endif
|
||||
|
||||
else
|
||||
{
|
||||
#ifdef DEBUG
|
||||
fprintf (stderr, "## unrecognized top-level form, %s (%s)\n",
|
||||
buffer, filename);
|
||||
#endif
|
||||
continue;
|
||||
}
|
||||
|
||||
/* At this point, we should gobble a doc string from the input file.
|
||||
The opening quote (and leading backslash-newline)
|
||||
have already been read. */
|
||||
|
||||
printf ("\037%c%s\n", type, buffer);
|
||||
read_c_string_or_comment (infile, 1, false, 0);
|
||||
}
|
||||
if (ferror (infile) || fclose (infile) != 0)
|
||||
fatal ("%s: read error", filename);
|
||||
}
|
||||
|
||||
|
||||
/* make-docfile.c ends here */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user