* NEWS: The -g and --graph options now output graphs in Graphviz

[bison.git] / src / location.h

diff --git a/src/location.h b/src/location.h
index b03f6d0e69e3904f5392cd812796c3f20d04665e..542c632057276b29dd646fc40db7efd85ca47247 100644 (file)
--- a/src/location.h
+++ b/src/location.h
@@ -1,5 +1,5 @@
 /* Locations for Bison
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -29,15 +29,26 @@ typedef struct
   /* The name of the file that contains the boundary.  */
   uniqstr file;
 
-  /* The (origin-1) line that contains the boundary.  */
+  /* The (origin-1) line that contains the boundary.
+     If this is INT_MAX, the line number has overflowed.  */
   int line;
 
   /* The (origin-1) column just after the boundary.  This is neither a
-     byte count, nor a character count; it is a column count.  */
+     byte count, nor a character count; it is a column count.
+     If this is INT_MAX, the column number has overflowed.  */
   int column;
 
 } boundary;
 
+/* Set the position of \a a. */
+static inline void
+boundary_set (boundary *b, const char *f, int l, int c)
+{
+  b->file = f; 
+  b->line = l;         
+  b->column = c;               
+}
+
 /* Return nonzero if A and B are equal boundaries.  */
 static inline bool
 equal_boundaries (boundary a, boundary b)
@@ -62,6 +73,11 @@ typedef struct
 
 extern location const empty_location;
 
-void location_print (FILE *, location);
+/* Set *LOC and adjust scanner cursor to account for token TOKEN of
+   size SIZE.  */
+void location_compute (location *loc,
+                      boundary *cur, char const *token, size_t size);
+
+void location_print (FILE *out, location loc);
 
 #endif /* ! defined LOCATION_H_ */