stas            Tue Feb 12 00:20:33 2008 UTC

  Modified files:              (Branch: PHP_5_3)
    /ZendEngine2        zend_compile.c zend_compile.h zend_language_parser.y 
                        zend_language_scanner.l 
  Log:
  [DOC] Add compile-time __DIR__ constant which implements dirname(__FILE__)
  
  
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_compile.c?r1=1.647.2.27.2.41.2.39&r2=1.647.2.27.2.41.2.40&diff_format=u
Index: ZendEngine2/zend_compile.c
diff -u ZendEngine2/zend_compile.c:1.647.2.27.2.41.2.39 
ZendEngine2/zend_compile.c:1.647.2.27.2.41.2.40
--- ZendEngine2/zend_compile.c:1.647.2.27.2.41.2.39     Tue Jan 29 00:07:26 2008
+++ ZendEngine2/zend_compile.c  Tue Feb 12 00:20:32 2008
@@ -17,7 +17,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_compile.c,v 1.647.2.27.2.41.2.39 2008/01/29 00:07:26 tony2001 Exp 
$ */
+/* $Id: zend_compile.c,v 1.647.2.27.2.41.2.40 2008/02/12 00:20:32 stas Exp $ */
 
 #include <zend_language_parser.h>
 #include "zend.h"
@@ -26,6 +26,7 @@
 #include "zend_llist.h"
 #include "zend_API.h"
 #include "zend_exceptions.h"
+#include "tsrm_virtual_cwd.h"
 
 #ifdef ZEND_MULTIBYTE
 #include "zend_multibyte.h"
@@ -4944,6 +4945,97 @@
 }
 /* }}} */
 
+ZEND_API size_t zend_dirname(char *path, size_t len)
+{
+       register char *end = path + len - 1;
+       unsigned int len_adjust = 0;
+
+#ifdef PHP_WIN32
+       /* Note that on Win32 CWD is per drive (heritage from CP/M).
+        * This means dirname("c:foo") maps to "c:." or "c:" - which means CWD 
on C: drive.
+        */
+       if ((2 <= len) && isalpha((int)((unsigned char *)path)[0]) && (':' == 
path[1])) {
+               /* Skip over the drive spec (if any) so as not to change */
+               path += 2;
+               len_adjust += 2;
+               if (2 == len) {
+                       /* Return "c:" on Win32 for dirname("c:").
+                        * It would be more consistent to return "c:." 
+                        * but that would require making the string *longer*.
+                        */
+                       return len;
+               }
+       }
+#elif defined(NETWARE)
+       /*
+        * Find the first occurence of : from the left 
+        * move the path pointer to the position just after :
+        * increment the len_adjust to the length of path till colon 
character(inclusive)
+        * If there is no character beyond : simple return len
+        */
+       char *colonpos = NULL;
+       colonpos = strchr(path, ':');
+       if (colonpos != NULL) {
+               len_adjust = ((colonpos - path) + 1);
+               path += len_adjust;
+               if (len_adjust == len) {
+                       return len;
+               }
+    }
+#endif
+
+       if (len == 0) {
+               /* Illegal use of this function */
+               return 0;
+       }
+
+       /* Strip trailing slashes */
+       while (end >= path && IS_SLASH_P(end)) {
+               end--;
+       }
+       if (end < path) {
+               /* The path only contained slashes */
+               path[0] = DEFAULT_SLASH;
+               path[1] = '\0';
+               return 1 + len_adjust;
+       }
+
+       /* Strip filename */
+       while (end >= path && !IS_SLASH_P(end)) {
+               end--;
+       }
+       if (end < path) {
+               /* No slash found, therefore return '.' */
+#ifdef NETWARE
+               if (len_adjust == 0) {
+                       path[0] = '.';
+                       path[1] = '\0';
+                       return 1; //only one character
+               } else {
+                       path[0] = '\0';
+                       return len_adjust;
+               }
+#else
+               path[0] = '.';
+               path[1] = '\0';
+               return 1 + len_adjust;
+#endif
+       }
+
+       /* Strip slashes which came before the file name */
+       while (end >= path && IS_SLASH_P(end)) {
+               end--;
+       }
+       if (end < path) {
+               path[0] = DEFAULT_SLASH;
+               path[1] = '\0';
+               return 1 + len_adjust;
+       }
+       *(end+1) = '\0';
+
+       return (size_t)(end + 1 - path) + len_adjust;
+}
+/* }}} */
 /*
  * Local variables:
  * tab-width: 4
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_compile.h?r1=1.316.2.8.2.12.2.13&r2=1.316.2.8.2.12.2.14&diff_format=u
Index: ZendEngine2/zend_compile.h
diff -u ZendEngine2/zend_compile.h:1.316.2.8.2.12.2.13 
ZendEngine2/zend_compile.h:1.316.2.8.2.12.2.14
--- ZendEngine2/zend_compile.h:1.316.2.8.2.12.2.13      Thu Jan 24 09:41:37 2008
+++ ZendEngine2/zend_compile.h  Tue Feb 12 00:20:33 2008
@@ -17,7 +17,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_compile.h,v 1.316.2.8.2.12.2.13 2008/01/24 09:41:37 dmitry Exp $ 
*/
+/* $Id: zend_compile.h,v 1.316.2.8.2.12.2.14 2008/02/12 00:20:33 stas Exp $ */
 
 #ifndef ZEND_COMPILE_H
 #define ZEND_COMPILE_H
@@ -570,6 +570,7 @@
 ZEND_API int zend_register_auto_global(char *name, uint name_len, 
zend_auto_global_callback auto_global_callback TSRMLS_DC);
 ZEND_API zend_bool zend_is_auto_global(char *name, uint name_len TSRMLS_DC);
 ZEND_API int zend_auto_global_disable_jit(char *varname, zend_uint 
varname_length TSRMLS_DC);
+ZEND_API size_t zend_dirname(char *path, size_t len);
 
 int zendlex(znode *zendlval TSRMLS_DC);
 
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_language_parser.y?r1=1.160.2.4.2.8.2.14&r2=1.160.2.4.2.8.2.15&diff_format=u
Index: ZendEngine2/zend_language_parser.y
diff -u ZendEngine2/zend_language_parser.y:1.160.2.4.2.8.2.14 
ZendEngine2/zend_language_parser.y:1.160.2.4.2.8.2.15
--- ZendEngine2/zend_language_parser.y:1.160.2.4.2.8.2.14       Sun Feb  3 
14:32:48 2008
+++ ZendEngine2/zend_language_parser.y  Tue Feb 12 00:20:33 2008
@@ -18,7 +18,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_language_parser.y,v 1.160.2.4.2.8.2.14 2008/02/03 14:32:48 helly 
Exp $ */
+/* $Id: zend_language_parser.y,v 1.160.2.4.2.8.2.15 2008/02/12 00:20:33 stas 
Exp $ */
 
 /*
  * LALR shift/reduce conflicts and how they are resolved:
@@ -132,6 +132,7 @@
 %token T_FUNC_C
 %token T_LINE
 %token T_FILE
+%token T_DIR
 %token T_COMMENT
 %token T_DOC_COMMENT
 %token T_OPEN_TAG
@@ -715,6 +716,7 @@
        |       T_CONSTANT_ENCAPSED_STRING      { $$ = $1; }
        |       T_LINE                                          { $$ = $1; }
        |       T_FILE                                          { $$ = $1; }
+       |       T_DIR                                           { $$ = $1; }
        |       T_CLASS_C                                       { $$ = $1; }
        |       T_METHOD_C                                      { $$ = $1; }
        |       T_FUNC_C                                        { $$ = $1; }
http://cvs.php.net/viewvc.cgi/ZendEngine2/zend_language_scanner.l?r1=1.131.2.11.2.13.2.4&r2=1.131.2.11.2.13.2.5&diff_format=u
Index: ZendEngine2/zend_language_scanner.l
diff -u ZendEngine2/zend_language_scanner.l:1.131.2.11.2.13.2.4 
ZendEngine2/zend_language_scanner.l:1.131.2.11.2.13.2.5
--- ZendEngine2/zend_language_scanner.l:1.131.2.11.2.13.2.4     Mon Jan 21 
19:39:55 2008
+++ ZendEngine2/zend_language_scanner.l Tue Feb 12 00:20:33 2008
@@ -19,7 +19,7 @@
    +----------------------------------------------------------------------+
 */
 
-/* $Id: zend_language_scanner.l,v 1.131.2.11.2.13.2.4 2008/01/21 19:39:55 
dmitry Exp $ */
+/* $Id: zend_language_scanner.l,v 1.131.2.11.2.13.2.5 2008/02/12 00:20:33 stas 
Exp $ */
 
 #define yyleng SCNG(yy_leng)
 #define yytext SCNG(yy_text)
@@ -62,6 +62,8 @@
 #include "zend_API.h"
 #include "zend_strtod.h"
 #include "zend_exceptions.h"
+#include "tsrm_virtual_cwd.h"
+#include "tsrm_config_common.h"
 
 #ifdef HAVE_STDARG_H
 # include <stdarg.h>
@@ -1545,6 +1547,33 @@
        return T_FILE;
 }
 
+<ST_IN_SCRIPTING>"__DIR__" {
+       char *filename = zend_get_compiled_filename(TSRMLS_C);
+       const size_t filename_len = strlen(filename);
+       char *dirname;
+
+       if (!filename) {
+               filename = "";
+       }
+
+       dirname = estrndup(filename, filename_len);
+       zend_dirname(dirname, filename_len);
+
+       if (strcmp(dirname, ".") == 0) {
+               dirname = erealloc(dirname, MAXPATHLEN);
+#if HAVE_GETCWD
+               VCWD_GETCWD(dirname, MAXPATHLEN);
+#elif HAVE_GETWD
+               VCWD_GETWD(dirname);
+#endif
+       }
+
+       zendlval->value.str.len = strlen(dirname);
+       zendlval->value.str.val = dirname;
+       zendlval->type = IS_STRING;
+       return T_DIR;
+}
+
 <ST_IN_SCRIPTING>"__NAMESPACE__" {
        if (CG(current_namespace)) {
                *zendlval = *CG(current_namespace);

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