* Track the line number of the current buffer position, so that error

  messages can refer to the line.  Change representation of buffer
  pointers to include the line number.  Add operation to generate a
  string that shows the line number and character number of either a
  given pointer or the current position.

* Eliminate DECREMENT-PARSER-BUFFER-POINTER, which was unused and
  makes implementing the line number more difficult.

* Add -NO-ADVANCE versions of procedures that match single characters.

* Change terminology: the index of the current character in the buffer
  is called a "position".  The word "pointer" is reserved to refer to
  pointer objects that are handed to the users, which themselves refer
  to positions.

diff --git a/v7/src/star-parser/buffer.scm b/v7/src/star-parser/buffer.scm
index 1a9ee589999b23786067b204ae85916685eb5511..afc78ad0e5f7d7fe7655e8c991b7e0a97cd82db6 100644 (file)
--- a/v7/src/star-parser/buffer.scm
+++ b/v7/src/star-parser/buffer.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;; $Id: buffer.scm,v 1.4 2001/06/29 05:19:24 cph Exp $
+;;; $Id: buffer.scm,v 1.5 2001/06/29 05:21:43 cph Exp $
 ;;;
 ;;; Copyright (c) 2001 Massachusetts Institute of Technology
 ;;;
@@ -53,10 +53,10 @@
 ;;; length.
 
 (define (substring->parser-buffer string start end)
-  (make-parser-buffer string start end 0 start #f #t 0 0))
+  (make-parser-buffer string start end 0 start #f #t 0))
 
 (define (source->parser-buffer source)
-  (make-parser-buffer (make-string min-length) 0 0 0 0 source #f 0 0))
+  (make-parser-buffer (make-string min-length) 0 0 0 0 source #f 0))
 
 (define-integrable min-length 256)
 

diff --git a/v7/src/star-parser/ed-ffi.scm b/v7/src/star-parser/ed-ffi.scm
index a3454775d81695e06662a3f95e0e760794e2db34..13e87cf4b5221cd2e3aa268b3a6ff56e3628145d 100644 (file)
--- a/v7/src/star-parser/ed-ffi.scm
+++ b/v7/src/star-parser/ed-ffi.scm
@@ -1,6 +1,6 @@
 ;;; -*-Scheme-*-
 ;;;
-;;; $Id: ed-ffi.scm,v 1.1 2001/06/26 18:51:22 cph Exp $
+;;; $Id: ed-ffi.scm,v 1.2 2001/06/29 05:23:24 cph Exp $
 ;;;
 ;;; Copyright (c) 2001 Massachusetts Institute of Technology
 ;;;
@@ -22,7 +22,7 @@
 ;;;; Parser language: Edwin buffer packaging info
 
 (standard-scheme-find-file-initialization
- '#(("buffer"  (runtime *parser)
+ '#(("buffer"  (runtime *parser buffer)
                system-global-syntax-table)
     ("matcher" (runtime *parser)
                system-global-syntax-table)