source: patches/bash-4.0-branch_update-1.patch@ 593f554e

arrayfunc.c

@@ -604 +604 @@
     }
 }
 
-/* This function assumes s[i] == '['; returns with s[ret] == ']' if
-   an array subscript is correctly parsed. */
-int
-skipsubscript (s, i)
-     const char *s;
-     int i;
-{
-  int count, c;
-#if defined (HANDLE_MULTIBYTE)
-  mbstate_t state, state_bak;
-  size_t slength, mblength;
-#endif
-
-#if defined (HANDLE_MULTIBYTE)
-  memset (&state, '\0', sizeof (mbstate_t));
-  slength = strlen (s + i);
-#endif
-  
-  count = 1;
-  while (count)
-    {
-      /* Advance one (possibly multibyte) character in S starting at I. */
-#if defined (HANDLE_MULTIBYTE)
-      if (MB_CUR_MAX > 1)
-        {
-          state_bak = state;
-          mblength = mbrlen (s + i, slength, &state);
-
-          if (MB_INVALIDCH (mblength))
-            {
-              state = state_bak;
-              i++;
-              slength--;
-            }
-          else if (MB_NULLWCH (mblength))
-            return i;
-          else
-            {
-              i += mblength;
-              slength -= mblength;
-            }
-        }
-      else
-#endif
-      ++i;
-
-      c = s[i];
-
-      if (c == 0)
-        break;
-      else if (c == '[')
-        count++;
-      else if (c == ']')
-        count--;
-    }
-
-  return i;
-}
+/* skipsubscript moved to subst.c to use private functions. 2009/02/24. */
 
 /* This function is called with SUB pointing to just after the beginning
    `[' of an array subscript and removes the array element to which SUB

builtins/declare.def

@@ -287 +287 @@
               name[offset - 1] = '\0';
             }
         }
+      else if (legal_identifier (name) == 0)
+        {
+          sh_invalidid (name);
+          assign_error++;
+          NEXT_VARIABLE ();
+        }
       else
         value = "";
 
@@ -295 +301 @@
       subscript_start = (char *)NULL;
       if (t = strchr (name, '['))       /* ] */
         {
+          /* If offset != 0 we have already validated any array reference */
+          if (offset == 0 && valid_array_reference (name) == 0)
+            {
+              sh_invalidid (name);
+              assign_error++;
+              NEXT_VARIABLE ();
+            }
           subscript_start = t;
           *t = '\0';
           making_array_special = 1;
@@ -484 +497 @@
             }
           /* declare -a name[[n]] or declare name[n] makes name an indexed
              array variable. */
-          else if ((making_array_special || (flags_on & att_array)) && array_p (var) == 0)
+          else if ((making_array_special || (flags_on & att_array)) && array_p (var) == 0 && assoc_p (var) == 0)
             var = convert_var_to_array (var);
 #endif /* ARRAY_VARS */
 

builtins/exit.def

@@ -113 +113 @@
       for (i = stopmsg = 0; i < js.j_jobslots; i++)
         if (jobs[i] && STOPPED (i))
           stopmsg = JSTOPPED;
-        else if (check_jobs_at_exit && stopmsg == 0 && RUNNING (i))
+        else if (check_jobs_at_exit && stopmsg == 0 && jobs[i] && RUNNING (i))
           stopmsg = JRUNNING;
 
       if (stopmsg == JSTOPPED)

parse.y

@@ -1615 +1615 @@
 {
   int *ret;
 
-  ret = (int *)xmalloc (3 * sizeof (int));
+  ret = (int *)xmalloc (4 * sizeof (int));
   ret[0] = last_read_token;
   ret[1] = token_before_that;
   ret[2] = two_tokens_ago;
+  ret[3] = current_token;
   return ret;
 }
 
@@ -1631 +1632 @@
   last_read_token = ts[0];
   token_before_that = ts[1];
   two_tokens_ago = ts[2];
+  current_token = ts[3];
 }
 
 /*
@@ -2668 +2670 @@
   FREE (word_desc_to_read);
   word_desc_to_read = (WORD_DESC *)NULL;
 
+  current_token = '\n';         /* XXX */
   last_read_token = '\n';
   token_to_read = '\n';
 }
@@ -2915 +2918 @@
 #define P_DQUOTE        0x04
 #define P_COMMAND       0x08    /* parsing a command, so look for comments */
 #define P_BACKQUOTE     0x10    /* parsing a backquoted command substitution */
+#define P_ARRAYSUB      0x20    /* parsing a [...] array subscript for assignment */
 
 /* Lexical state while parsing a grouping construct or $(...). */
 #define LEX_WASDOL      0x001
@@ -3129 +3133 @@
               APPEND_NESTRET ();
               FREE (nestret);
             }
+          else if ((flags & P_ARRAYSUB) && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '['))      /* ) } ] */
+            goto parse_dollar_word;
         }
       /* Parse an old-style command substitution within double quotes as a
          single word. */
@@ -3145 +3151 @@
       else if MBTEST(open != '`' && (tflags & LEX_WASDOL) && (ch == '(' || ch == '{' || ch == '['))     /* ) } ] */
         /* check for $(), $[], or ${} inside quoted string. */
         {
+parse_dollar_word:
           if (open == ch)       /* undo previous increment */
             count--;
           if (ch == '(')                /* ) */
@@ -3306 +3313 @@
         }
 
       /* Meta-characters that can introduce a reserved word.  Not perfect yet. */
-      if MBTEST((tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && shellmeta(ch))
+      if MBTEST((tflags & LEX_PASSNEXT) == 0 && (tflags & LEX_RESWDOK) == 0 && (tflags & LEX_CKCASE) && (tflags & LEX_INCOMMENT) == 0 && shellmeta(ch))
         {
           /* Add this character. */
           RESIZE_MALLOCED_BUFFER (ret, retind, 1, retsize, 64);
@@ -3394 +3401 @@
                 }
               else
                 shell_ungetc (peekc);
-              tflags |= LEX_HEREDELIM;
-              lex_firstind = -1;
+              if (peekc != '<')
+                {
+                  tflags |= LEX_HEREDELIM;
+                  lex_firstind = -1;
+                }
               continue;
             }
           else
@@ -4248 +4258 @@
                      ((token_index > 0 && assignment_acceptable (last_read_token) && token_is_ident (token, token_index)) ||
                       (token_index == 0 && (parser_state&PST_COMPASSIGN))))
         {
-          ttok = parse_matched_pair (cd, '[', ']', &ttoklen, 0);
+          ttok = parse_matched_pair (cd, '[', ']', &ttoklen, P_ARRAYSUB);
           if (ttok == &matched_pair_error)
             return -1;          /* Bail immediately. */
           RESIZE_MALLOCED_BUFFER (token, token_index, ttoklen + 2,
@@ -4449 +4459 @@
     case '}':           /* XXX */
     case AND_AND:
     case BANG:
+    case BAR_AND:
     case DO:
     case DONE:
     case ELIF:

pcomplete.c

@@ -1032 +1032 @@
   cmdlist = build_arg_list (funcname, text, lwords, cw);
 
   pps = &ps;
+  save_parser_state (pps);
   begin_unwind_frame ("gen-shell-function-matches");
   add_unwind_protect (restore_parser_state, (char *)pps);
   add_unwind_protect (dispose_words, (char *)cmdlist);

subst.c

@@ -222 +222 @@
 static int skip_double_quoted __P((char *, size_t, int));
 static char *extract_delimited_string __P((char *, int *, char *, char *, char *, int));
 static char *extract_dollar_brace_string __P((char *, int *, int, int));
+static int skip_matched_pair __P((const char *, int, int, int, int));
 
 static char *pos_params __P((char *, int, int, int));
 
@@ -1374 +1375 @@
 
 #define CQ_RETURN(x) do { no_longjmp_on_fatal_error = 0; return (x); } while (0)
 
+/* This function assumes s[i] == open; returns with s[ret] == close; used to
+   parse array subscripts.  FLAGS currently unused. */
+static int
+skip_matched_pair (string, start, open, close, flags)
+     const char *string;
+     int start, open, close, flags;
+{
+  int i, pass_next, backq, si, c, count;
+  size_t slen;
+  char *temp, *ss;
+  DECLARE_MBSTATE;
+
+  slen = strlen (string + start) + start;
+  no_longjmp_on_fatal_error = 1;
+
+  i = start + 1;                /* skip over leading bracket */
+  count = 1;
+  pass_next = backq = 0;
+  ss = (char *)string;
+  while (c = string[i])
+    {
+      if (pass_next)
+        {
+          pass_next = 0;
+          if (c == 0)
+            CQ_RETURN(i);
+          ADVANCE_CHAR (string, slen, i);
+          continue;
+        }
+      else if (c == '\\')
+        {
+          pass_next = 1;
+          i++;
+          continue;
+        }
+      else if (backq)
+        {
+          if (c == '`')
+            backq = 0;
+          ADVANCE_CHAR (string, slen, i);
+          continue;
+        }
+      else if (c == '`')
+        {
+          backq = 1;
+          i++;
+          continue;
+        }
+      else if (c == open)
+        {
+          count++;
+          i++;
+          continue;
+        }
+      else if (c == close)
+        {
+          count--;
+          if (count == 0)
+            break;
+          i++;
+          continue;
+        }
+      else if (c == '\'' || c == '"')
+        {
+          i = (c == '\'') ? skip_single_quoted (ss, slen, ++i)
+                          : skip_double_quoted (ss, slen, ++i);
+          /* no increment, the skip functions increment past the closing quote. */
+        }
+      else if (c == '$' && (string[i+1] == LPAREN || string[i+1] == LBRACE))
+        {
+          si = i + 2;
+          if (string[si] == '\0')
+            CQ_RETURN(si);
+
+          if (string[i+1] == LPAREN)
+            temp = extract_delimited_string (ss, &si, "$(", "(", ")", SX_NOALLOC|SX_COMMAND); /* ) */
+          else
+            temp = extract_dollar_brace_string (ss, &si, 0, SX_NOALLOC);
+          i = si;
+          if (string[i] == '\0')        /* don't increment i past EOS in loop */
+            break;
+          i++;
+          continue;
+        }
+      else
+        ADVANCE_CHAR (string, slen, i);
+    }
+
+  CQ_RETURN(i);
+}
+
+#if defined (ARRAY_VARS)
+int
+skipsubscript (string, start)
+     const char *string;
+     int start;
+{
+  return (skip_matched_pair (string, start, '[', ']', 0));
+}
+#endif
+
 /* Skip characters in STRING until we find a character in DELIMS, and return
    the index of that character.  START is the index into string at which we
    begin.  This is similar in spirit to strpbrk, but it returns an index into