Imported Upstream version 1.4.8upstream/1.4.8

1 files changed, 58 insertions, 35 deletions

diff --git a/grammar.y b/lib/grammar.y
index e484530..f578897 100644
--- a/grammar.y
+++ b/lib/grammar.y
@@ -1,20 +1,20 @@
 /* -*- mode: C -*- */
 /* ----------------------------------------------------------------------------
    libconfig - A library for processing structured configuration files
-   Copyright (C) 2005-2008  Mark A Lindner
- 
+   Copyright (C) 2005-2010  Mark A Lindner
+
    This file is part of libconfig.
-    
+
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public License
    as published by the Free Software Foundation; either version 2.1 of
    the License, or (at your option) any later version.
-    
+
    This library 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
    Lesser General Public License for more details.
-    
+
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, see
    <http://www.gnu.org/licenses/>.
@@ -27,6 +27,7 @@
 %lex-param{void *scanner}
 %parse-param{void *scanner}
 %parse-param{struct parse_context *ctx}
+%parse-param{struct scan_context *scan_ctx}
 
 %{
 #include <string.h>
@@ -39,30 +40,41 @@
 #ifndef _STDLIB_H
 #define _STDLIB_H
 #endif
-  
+
 #include <malloc.h>
 #endif
-#include "private.h"
+#include "parsectx.h"
+#include "scanctx.h"
 
 /* these delcarations are provided to suppress compiler warnings */
 extern int libconfig_yylex();
 extern int libconfig_yyget_lineno();
-  
+
 static const char *err_array_elem_type = "mismatched element type in array";
 static const char *err_duplicate_setting = "duplicate setting name";
 
+#define _delete(P) free((void *)(P))
+
 #define IN_ARRAY() \
   (ctx->parent && (ctx->parent->type == CONFIG_TYPE_ARRAY))
 
 #define IN_LIST() \
   (ctx->parent && (ctx->parent->type == CONFIG_TYPE_LIST))
 
-#define CAPTURE_PARSE_POS(S)                                    \
-  (S)->line = (unsigned int)libconfig_yyget_lineno(scanner)
+static void capture_parse_pos(void *scanner, struct scan_context *scan_ctx,
+                              config_setting_t *setting)
+{
+  setting->line = (unsigned int)libconfig_yyget_lineno(scanner);
+  setting->file = scanctx_current_filename(scan_ctx);
+}
+
+#define CAPTURE_PARSE_POS(S) \
+  capture_parse_pos(scanner, scan_ctx, (S))
 
 void libconfig_yyerror(void *scanner, struct parse_context *ctx,
-                      char const *s)
+                       struct scan_context *scan_ctx, char const *s)
 {
+  if(ctx->config->error_text) return;
   ctx->config->error_line = libconfig_yyget_lineno(scanner);
   ctx->config->error_text = s;
 }
@@ -71,7 +83,7 @@ void libconfig_yyerror(void *scanner, struct parse_context *ctx,
 
 %union
 {
-  long ival;
+  int ival;
   long long llval;
   double fval;
   char *sval;
@@ -81,7 +93,7 @@ void libconfig_yyerror(void *scanner, struct parse_context *ctx,
 %token <llval> TOK_INTEGER64 TOK_HEX64
 %token <fval> TOK_FLOAT
 %token <sval> TOK_STRING TOK_NAME
-%token TOK_EQUALS TOK_NEWLINE TOK_ARRAY_START TOK_ARRAY_END TOK_LIST_START TOK_LIST_END TOK_COMMA TOK_GROUP_START TOK_GROUP_END TOK_END TOK_GARBAGE
+%token TOK_EQUALS TOK_NEWLINE TOK_ARRAY_START TOK_ARRAY_END TOK_LIST_START TOK_LIST_END TOK_COMMA TOK_GROUP_START TOK_GROUP_END TOK_SEMICOLON TOK_GARBAGE TOK_ERROR
 
 %%
 
@@ -100,15 +112,20 @@ setting_list_optional:
   | setting_list
   ;
 
+setting_terminator:
+    /* empty */
+  | TOK_SEMICOLON
+  | TOK_COMMA
+  ;
+
 setting:
   TOK_NAME
   {
     ctx->setting = config_setting_add(ctx->parent, $1, CONFIG_TYPE_NONE);
-    free($1);
-  
+
     if(ctx->setting == NULL)
     {
-      libconfig_yyerror(scanner, ctx, err_duplicate_setting);
+      libconfig_yyerror(scanner, ctx, scan_ctx, err_duplicate_setting);
       YYABORT;
     }
     else
@@ -117,9 +134,9 @@ setting:
     }
   }
 
-  TOK_EQUALS value TOK_END
+  TOK_EQUALS value setting_terminator
   ;
-  
+
 array:
   TOK_ARRAY_START
   {
@@ -139,7 +156,7 @@ array:
   TOK_ARRAY_END
   {
     if(ctx->parent)
-      ctx->parent = ctx->parent->parent;    
+      ctx->parent = ctx->parent->parent;
   }
   ;
 
@@ -162,7 +179,7 @@ list:
   TOK_LIST_END
   {
     if(ctx->parent)
-      ctx->parent = ctx->parent->parent;    
+      ctx->parent = ctx->parent->parent;
   }
   ;
 
@@ -173,6 +190,11 @@ value:
   | group
   ;
 
+string:
+  TOK_STRING { parsectx_append_string(ctx, $1); free($1); }
+  | string TOK_STRING { parsectx_append_string(ctx, $2); free($2); }
+  ;
+
 simple_value:
     TOK_BOOLEAN
   {
@@ -180,10 +202,10 @@ simple_value:
     {
       config_setting_t *e = config_setting_set_bool_elem(ctx->parent, -1,
                                                          (int)$1);
-      
+
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -201,7 +223,7 @@ simple_value:
       config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1);
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -223,7 +245,7 @@ simple_value:
       config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1);
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -245,7 +267,7 @@ simple_value:
       config_setting_t *e = config_setting_set_int_elem(ctx->parent, -1, $1);
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -267,7 +289,7 @@ simple_value:
       config_setting_t *e = config_setting_set_int64_elem(ctx->parent, -1, $1);
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -289,7 +311,7 @@ simple_value:
       config_setting_t *e = config_setting_set_float_elem(ctx->parent, -1, $1);
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -300,17 +322,17 @@ simple_value:
     else
       config_setting_set_float(ctx->setting, $1);
   }
-  | TOK_STRING
+  | string
   {
     if(IN_ARRAY() || IN_LIST())
     {
-      config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1,
-                                                           $1);
-      free($1);
-      
+      const char *s = parsectx_take_string(ctx);
+      config_setting_t *e = config_setting_set_string_elem(ctx->parent, -1, s);
+      _delete(s);
+
       if(! e)
       {
-        libconfig_yyerror(scanner, ctx, err_array_elem_type);
+        libconfig_yyerror(scanner, ctx, scan_ctx, err_array_elem_type);
         YYABORT;
       }
       else
@@ -320,8 +342,9 @@ simple_value:
     }
     else
     {
-      config_setting_set_string(ctx->setting, $1);
-      free($1);
+      const char *s = parsectx_take_string(ctx);
+      config_setting_set_string(ctx->setting, s);
+      _delete(s);
     }
   }
   ;