X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fregex%2Fregcomp.c;h=322a5e67c437c2cd838240bd67e3100be2a3ab3c;hb=0d4d1a96e4fd827267250e469affc7ebfc44324f;hp=5f119d172e535a5ca8d6b0289ac1391e9913d045;hpb=a5a47783359dff3e583693bcddc1c5e3311d96ac;p=musl

diff --git a/src/regex/regcomp.c b/src/regex/regcomp.c
index 5f119d17..322a5e67 100644
--- a/src/regex/regcomp.c
+++ b/src/regex/regcomp.c
@@ -1052,8 +1052,6 @@ tre_parse(tre_parse_ctx_t *ctx)
 	  }
 
 	case PARSE_UNION:
-	  if (!*ctx->re)
-	    break;
 	  switch (*ctx->re)
 	    {
 	    case CHAR_PIPE:
@@ -1086,8 +1084,6 @@ tre_parse(tre_parse_ctx_t *ctx)
 
 	case PARSE_POSTFIX:
 	  /* Parse postfix operators. */
-	  if (!*ctx->re)
-	    break;
 	  switch (*ctx->re)
 	    {
 	    case CHAR_PLUS:
@@ -1186,7 +1182,7 @@ tre_parse(tre_parse_ctx_t *ctx)
 		  ctx->re++;
 		  goto lparen;
 		}
-	      if (!(ctx->cflags & REG_EXTENDED) && *(ctx->re + 1) == CHAR_LPAREN)
+	      if (!(ctx->cflags & REG_EXTENDED) && *(ctx->re + 1) == CHAR_RPAREN)
 		{
 		  goto empty_atom;
 		}
@@ -1210,7 +1206,7 @@ tre_parse(tre_parse_ctx_t *ctx)
 		  }
 	      }
 
-	      if (!*ctx->re)
+	      if (!ctx->re[1])
 		/* Trailing backslash. */
 		return REG_EESCAPE;
 
@@ -1353,6 +1349,8 @@ tre_parse(tre_parse_ctx_t *ctx)
 	      if (ctx->cflags & REG_EXTENDED
 		  || ctx->re == ctx->re_start)
 		{
+		  if (!(ctx->cflags & REG_EXTENDED))
+		    STACK_PUSHX(stack, int, PARSE_CATENATION);
 		  result = tre_ast_new_literal(ctx->mem, ASSERTION,
 					       ASSERT_AT_BOL, -1);
 		  if (result == NULL)