501 lines
11 KiB
Plaintext
501 lines
11 KiB
Plaintext
%{ /* rclex.l -- lexer for Windows rc files parser */
|
|
/* Copyright 1997, 1998, 1999, 2001, 2002 Free Software Foundation, Inc.
|
|
Written by Ian Lance Taylor, Cygnus Support.
|
|
|
|
This file is part of GNU Binutils.
|
|
|
|
This program 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 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
|
|
02111-1307, USA. */
|
|
|
|
/* This is a lex input file which generates a lexer used by the
|
|
Windows rc file parser. It basically just recognized a bunch of
|
|
keywords. */
|
|
|
|
#include "bfd.h"
|
|
#include "bucomm.h"
|
|
#include "libiberty.h"
|
|
#include "safe-ctype.h"
|
|
#include "windres.h"
|
|
#include "rcparse.h"
|
|
|
|
#include <assert.h>
|
|
|
|
/* Whether we are in rcdata mode, in which we returns the lengths of
|
|
strings. */
|
|
|
|
static int rcdata_mode;
|
|
|
|
/* Whether we are supressing lines from cpp (including windows.h or
|
|
headers from your C sources may bring in externs and typedefs).
|
|
When active, we return IGNORED_TOKEN, which lets us ignore these
|
|
outside of resource constructs. Thus, it isn't required to protect
|
|
all the non-preprocessor lines in your header files with #ifdef
|
|
RC_INVOKED. It also means your RC file can't include other RC
|
|
files if they're named "*.h". Sorry. Name them *.rch or whatever. */
|
|
|
|
static int suppress_cpp_data;
|
|
|
|
#define MAYBE_RETURN(x) return suppress_cpp_data ? IGNORED_TOKEN : (x)
|
|
|
|
/* The first filename we detect in the cpp output. We use this to
|
|
tell included files from the original file. */
|
|
|
|
static char *initial_fn;
|
|
|
|
/* List of allocated strings. */
|
|
|
|
struct alloc_string
|
|
{
|
|
struct alloc_string *next;
|
|
char *s;
|
|
};
|
|
|
|
static struct alloc_string *strings;
|
|
|
|
/* Local functions. */
|
|
|
|
static void cpp_line PARAMS ((const char *));
|
|
static char *handle_quotes PARAMS ((const char *, unsigned long *));
|
|
static char *get_string PARAMS ((int));
|
|
|
|
%}
|
|
|
|
%%
|
|
|
|
"BEGIN" { MAYBE_RETURN (BEG); }
|
|
"{" { MAYBE_RETURN (BEG); }
|
|
"END" { MAYBE_RETURN (END); }
|
|
"}" { MAYBE_RETURN (END); }
|
|
"ACCELERATORS" { MAYBE_RETURN (ACCELERATORS); }
|
|
"VIRTKEY" { MAYBE_RETURN (VIRTKEY); }
|
|
"ASCII" { MAYBE_RETURN (ASCII); }
|
|
"NOINVERT" { MAYBE_RETURN (NOINVERT); }
|
|
"SHIFT" { MAYBE_RETURN (SHIFT); }
|
|
"CONTROL" { MAYBE_RETURN (CONTROL); }
|
|
"ALT" { MAYBE_RETURN (ALT); }
|
|
"BITMAP" { MAYBE_RETURN (BITMAP); }
|
|
"CURSOR" { MAYBE_RETURN (CURSOR); }
|
|
"DIALOG" { MAYBE_RETURN (DIALOG); }
|
|
"DIALOGEX" { MAYBE_RETURN (DIALOGEX); }
|
|
"EXSTYLE" { MAYBE_RETURN (EXSTYLE); }
|
|
"CAPTION" { MAYBE_RETURN (CAPTION); }
|
|
"CLASS" { MAYBE_RETURN (CLASS); }
|
|
"STYLE" { MAYBE_RETURN (STYLE); }
|
|
"AUTO3STATE" { MAYBE_RETURN (AUTO3STATE); }
|
|
"AUTOCHECKBOX" { MAYBE_RETURN (AUTOCHECKBOX); }
|
|
"AUTORADIOBUTTON" { MAYBE_RETURN (AUTORADIOBUTTON); }
|
|
"CHECKBOX" { MAYBE_RETURN (CHECKBOX); }
|
|
"COMBOBOX" { MAYBE_RETURN (COMBOBOX); }
|
|
"CTEXT" { MAYBE_RETURN (CTEXT); }
|
|
"DEFPUSHBUTTON" { MAYBE_RETURN (DEFPUSHBUTTON); }
|
|
"EDITTEXT" { MAYBE_RETURN (EDITTEXT); }
|
|
"GROUPBOX" { MAYBE_RETURN (GROUPBOX); }
|
|
"LISTBOX" { MAYBE_RETURN (LISTBOX); }
|
|
"LTEXT" { MAYBE_RETURN (LTEXT); }
|
|
"PUSHBOX" { MAYBE_RETURN (PUSHBOX); }
|
|
"PUSHBUTTON" { MAYBE_RETURN (PUSHBUTTON); }
|
|
"RADIOBUTTON" { MAYBE_RETURN (RADIOBUTTON); }
|
|
"RTEXT" { MAYBE_RETURN (RTEXT); }
|
|
"SCROLLBAR" { MAYBE_RETURN (SCROLLBAR); }
|
|
"STATE3" { MAYBE_RETURN (STATE3); }
|
|
"USERBUTTON" { MAYBE_RETURN (USERBUTTON); }
|
|
"BEDIT" { MAYBE_RETURN (BEDIT); }
|
|
"HEDIT" { MAYBE_RETURN (HEDIT); }
|
|
"IEDIT" { MAYBE_RETURN (IEDIT); }
|
|
"FONT" { MAYBE_RETURN (FONT); }
|
|
"ICON" { MAYBE_RETURN (ICON); }
|
|
"LANGUAGE" { MAYBE_RETURN (LANGUAGE); }
|
|
"CHARACTERISTICS" { MAYBE_RETURN (CHARACTERISTICS); }
|
|
"VERSION" { MAYBE_RETURN (VERSIONK); }
|
|
"MENU" { MAYBE_RETURN (MENU); }
|
|
"MENUEX" { MAYBE_RETURN (MENUEX); }
|
|
"MENUITEM" { MAYBE_RETURN (MENUITEM); }
|
|
"SEPARATOR" { MAYBE_RETURN (SEPARATOR); }
|
|
"POPUP" { MAYBE_RETURN (POPUP); }
|
|
"CHECKED" { MAYBE_RETURN (CHECKED); }
|
|
"GRAYED" { MAYBE_RETURN (GRAYED); }
|
|
"HELP" { MAYBE_RETURN (HELP); }
|
|
"INACTIVE" { MAYBE_RETURN (INACTIVE); }
|
|
"MENUBARBREAK" { MAYBE_RETURN (MENUBARBREAK); }
|
|
"MENUBREAK" { MAYBE_RETURN (MENUBREAK); }
|
|
"MESSAGETABLE" { MAYBE_RETURN (MESSAGETABLE); }
|
|
"RCDATA" { MAYBE_RETURN (RCDATA); }
|
|
"STRINGTABLE" { MAYBE_RETURN (STRINGTABLE); }
|
|
"VERSIONINFO" { MAYBE_RETURN (VERSIONINFO); }
|
|
"FILEVERSION" { MAYBE_RETURN (FILEVERSION); }
|
|
"PRODUCTVERSION" { MAYBE_RETURN (PRODUCTVERSION); }
|
|
"FILEFLAGSMASK" { MAYBE_RETURN (FILEFLAGSMASK); }
|
|
"FILEFLAGS" { MAYBE_RETURN (FILEFLAGS); }
|
|
"FILEOS" { MAYBE_RETURN (FILEOS); }
|
|
"FILETYPE" { MAYBE_RETURN (FILETYPE); }
|
|
"FILESUBTYPE" { MAYBE_RETURN (FILESUBTYPE); }
|
|
"VALUE" { MAYBE_RETURN (VALUE); }
|
|
"MOVEABLE" { MAYBE_RETURN (MOVEABLE); }
|
|
"FIXED" { MAYBE_RETURN (FIXED); }
|
|
"PURE" { MAYBE_RETURN (PURE); }
|
|
"IMPURE" { MAYBE_RETURN (IMPURE); }
|
|
"PRELOAD" { MAYBE_RETURN (PRELOAD); }
|
|
"LOADONCALL" { MAYBE_RETURN (LOADONCALL); }
|
|
"DISCARDABLE" { MAYBE_RETURN (DISCARDABLE); }
|
|
"NOT" { MAYBE_RETURN (NOT); }
|
|
|
|
"BLOCK"[ \t\n]*"\""[^\#\n]*"\"" {
|
|
char *s, *send;
|
|
|
|
/* This is a hack to let us parse version
|
|
information easily. */
|
|
|
|
s = strchr (yytext, '"');
|
|
++s;
|
|
send = strchr (s, '"');
|
|
if (strncmp (s, "StringFileInfo",
|
|
sizeof "StringFileInfo" - 1) == 0
|
|
&& s + sizeof "StringFileInfo" - 1 == send)
|
|
MAYBE_RETURN (BLOCKSTRINGFILEINFO);
|
|
else if (strncmp (s, "VarFileInfo",
|
|
sizeof "VarFileInfo" - 1) == 0
|
|
&& s + sizeof "VarFileInfo" - 1 == send)
|
|
MAYBE_RETURN (BLOCKVARFILEINFO);
|
|
else
|
|
{
|
|
char *r;
|
|
|
|
r = get_string (send - s + 1);
|
|
strncpy (r, s, send - s);
|
|
r[send - s] = '\0';
|
|
yylval.s = r;
|
|
MAYBE_RETURN (BLOCK);
|
|
}
|
|
}
|
|
|
|
"#"[^\n]* {
|
|
cpp_line (yytext);
|
|
}
|
|
|
|
[0-9][x0-9A-Fa-f]*L {
|
|
yylval.i.val = strtoul (yytext, 0, 0);
|
|
yylval.i.dword = 1;
|
|
MAYBE_RETURN (NUMBER);
|
|
}
|
|
|
|
[0-9][x0-9A-Fa-f]* {
|
|
yylval.i.val = strtoul (yytext, 0, 0);
|
|
yylval.i.dword = 0;
|
|
MAYBE_RETURN (NUMBER);
|
|
}
|
|
|
|
("\""[^\"\n]*"\""[ \t\n]*)+ {
|
|
char *s;
|
|
unsigned long length;
|
|
|
|
s = handle_quotes (yytext, &length);
|
|
if (! rcdata_mode)
|
|
{
|
|
yylval.s = s;
|
|
MAYBE_RETURN (QUOTEDSTRING);
|
|
}
|
|
else
|
|
{
|
|
yylval.ss.length = length;
|
|
yylval.ss.s = s;
|
|
MAYBE_RETURN (SIZEDSTRING);
|
|
}
|
|
}
|
|
|
|
[A-Za-z][^ ,\t\r\n]* {
|
|
char *s;
|
|
|
|
/* I rejected comma in a string in order to
|
|
handle VIRTKEY, CONTROL in an accelerator
|
|
resource. This means that an unquoted
|
|
file name can not contain a comma. I
|
|
don't know what rc permits. */
|
|
|
|
s = get_string (strlen (yytext) + 1);
|
|
strcpy (s, yytext);
|
|
yylval.s = s;
|
|
MAYBE_RETURN (STRING);
|
|
}
|
|
|
|
[\n] { ++rc_lineno; }
|
|
[ \t\r]+ { /* ignore whitespace */ }
|
|
. { MAYBE_RETURN (*yytext); }
|
|
|
|
%%
|
|
#ifndef yywrap
|
|
/* This is needed for some versions of lex. */
|
|
int yywrap ()
|
|
{
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* Handle a C preprocessor line. */
|
|
|
|
static void
|
|
cpp_line (s)
|
|
const char *s;
|
|
{
|
|
int line;
|
|
char *send, *fn;
|
|
|
|
++s;
|
|
while (ISSPACE (*s))
|
|
++s;
|
|
|
|
line = strtol (s, &send, 0);
|
|
if (*send != '\0' && ! ISSPACE (*send))
|
|
return;
|
|
|
|
/* Subtract 1 because we are about to count the newline. */
|
|
rc_lineno = line - 1;
|
|
|
|
s = send;
|
|
while (ISSPACE (*s))
|
|
++s;
|
|
|
|
if (*s != '"')
|
|
return;
|
|
|
|
++s;
|
|
send = strchr (s, '"');
|
|
if (send == NULL)
|
|
return;
|
|
|
|
fn = (char *) xmalloc (send - s + 1);
|
|
strncpy (fn, s, send - s);
|
|
fn[send - s] = '\0';
|
|
|
|
free (rc_filename);
|
|
rc_filename = fn;
|
|
|
|
if (!initial_fn)
|
|
{
|
|
initial_fn = xmalloc (strlen (fn) + 1);
|
|
strcpy (initial_fn, fn);
|
|
}
|
|
|
|
/* Allow the initial file, regardless of name. Suppress all other
|
|
files if they end in ".h" (this allows included "*.rc"). */
|
|
if (strcmp (initial_fn, fn) == 0
|
|
|| strcmp (fn + strlen (fn) - 2, ".h") != 0)
|
|
suppress_cpp_data = 0;
|
|
else
|
|
suppress_cpp_data = 1;
|
|
}
|
|
|
|
/* Handle a quoted string. The quotes are stripped. A pair of quotes
|
|
in a string are turned into a single quote. Adjacent strings are
|
|
merged separated by whitespace are merged, as in C. */
|
|
|
|
static char *
|
|
handle_quotes (input, len)
|
|
const char *input;
|
|
unsigned long *len;
|
|
{
|
|
char *ret, *s;
|
|
const char *t;
|
|
int ch;
|
|
|
|
ret = get_string (strlen (input) + 1);
|
|
|
|
s = ret;
|
|
t = input;
|
|
if (*t == '"')
|
|
++t;
|
|
while (*t != '\0')
|
|
{
|
|
if (*t == '\\')
|
|
{
|
|
++t;
|
|
switch (*t)
|
|
{
|
|
case '\0':
|
|
rcparse_warning ("backslash at end of string");
|
|
break;
|
|
|
|
case '\"':
|
|
rcparse_warning ("use \"\" to put \" in a string");
|
|
break;
|
|
|
|
case 'a':
|
|
*s++ = ESCAPE_B; /* Strange, but true... */
|
|
++t;
|
|
break;
|
|
|
|
case 'b':
|
|
*s++ = ESCAPE_B;
|
|
++t;
|
|
break;
|
|
|
|
case 'f':
|
|
*s++ = ESCAPE_F;
|
|
++t;
|
|
break;
|
|
|
|
case 'n':
|
|
*s++ = ESCAPE_N;
|
|
++t;
|
|
break;
|
|
|
|
case 'r':
|
|
*s++ = ESCAPE_R;
|
|
++t;
|
|
break;
|
|
|
|
case 't':
|
|
*s++ = ESCAPE_T;
|
|
++t;
|
|
break;
|
|
|
|
case 'v':
|
|
*s++ = ESCAPE_V;
|
|
++t;
|
|
break;
|
|
|
|
case '\\':
|
|
*s++ = *t++;
|
|
break;
|
|
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
ch = *t - '0';
|
|
++t;
|
|
if (*t >= '0' && *t <= '7')
|
|
{
|
|
ch = (ch << 3) | (*t - '0');
|
|
++t;
|
|
if (*t >= '0' && *t <= '7')
|
|
{
|
|
ch = (ch << 3) | (*t - '0');
|
|
++t;
|
|
}
|
|
}
|
|
*s++ = ch;
|
|
break;
|
|
|
|
case 'x':
|
|
++t;
|
|
ch = 0;
|
|
while (1)
|
|
{
|
|
if (*t >= '0' && *t <= '9')
|
|
ch = (ch << 4) | (*t - '0');
|
|
else if (*t >= 'a' && *t <= 'f')
|
|
ch = (ch << 4) | (*t - 'a' + 10);
|
|
else if (*t >= 'A' && *t <= 'F')
|
|
ch = (ch << 4) | (*t - 'A' + 10);
|
|
else
|
|
break;
|
|
++t;
|
|
}
|
|
*s++ = ch;
|
|
break;
|
|
|
|
default:
|
|
rcparse_warning ("unrecognized escape sequence");
|
|
*s++ = '\\';
|
|
*s++ = *t++;
|
|
break;
|
|
}
|
|
}
|
|
else if (*t != '"')
|
|
*s++ = *t++;
|
|
else if (t[1] == '\0')
|
|
break;
|
|
else if (t[1] == '"')
|
|
{
|
|
*s++ = '"';
|
|
t += 2;
|
|
}
|
|
else
|
|
{
|
|
++t;
|
|
assert (ISSPACE (*t));
|
|
while (ISSPACE (*t))
|
|
{
|
|
if ((*t) == '\n')
|
|
++rc_lineno;
|
|
++t;
|
|
}
|
|
if (*t == '\0')
|
|
break;
|
|
assert (*t == '"');
|
|
++t;
|
|
}
|
|
}
|
|
|
|
*s = '\0';
|
|
|
|
*len = s - ret;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Allocate a string of a given length. */
|
|
|
|
static char *
|
|
get_string (len)
|
|
int len;
|
|
{
|
|
struct alloc_string *as;
|
|
|
|
as = (struct alloc_string *) xmalloc (sizeof *as);
|
|
as->s = xmalloc (len);
|
|
|
|
as->next = strings;
|
|
strings = as;
|
|
|
|
return as->s;
|
|
}
|
|
|
|
/* Discard all the strings we have allocated. The parser calls this
|
|
when it no longer needs them. */
|
|
|
|
void
|
|
rcparse_discard_strings ()
|
|
{
|
|
struct alloc_string *as;
|
|
|
|
as = strings;
|
|
while (as != NULL)
|
|
{
|
|
struct alloc_string *n;
|
|
|
|
free (as->s);
|
|
n = as->next;
|
|
free (as);
|
|
as = n;
|
|
}
|
|
|
|
strings = NULL;
|
|
}
|
|
|
|
/* Enter rcdata mode. */
|
|
|
|
void
|
|
rcparse_rcdata ()
|
|
{
|
|
rcdata_mode = 1;
|
|
}
|
|
|
|
/* Go back to normal mode from rcdata mode. */
|
|
|
|
void
|
|
rcparse_normal ()
|
|
{
|
|
rcdata_mode = 0;
|
|
}
|