work on lexer

[pspp] / src / data / caseinit.h

diff --git a/src/data/caseinit.h b/src/data/caseinit.h
index 66226f5683c806728ca36fccc8dcc96d5a18dfa7..ff79a947fed8e6dac0200400047b60820af17d97 100644 (file)
--- a/src/data/caseinit.h
+++ b/src/data/caseinit.h
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 2007 Free Software Foundation, Inc.
+   Copyright (C) 2007, 2010 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
 /* Case initializer.
 
    The procedure code has to resize cases provided by the active
-   file data source, to provide room for any other variables that
+   dataset data source, to provide room for any other variables that
    should go in the case, fill in the values of "left" variables,
    and initialize the values of other non-left variable to zero
    or spaces.  Then, when we're done with that case, we have to
    save the values of "left" variables to copy into the next case
-   read from the active file.
+   read from the active dataset.
 
    The caseinit data structure provides a little help for
    tracking what data to initialize or to copy from case to
@@ -31,11 +31,13 @@
 #ifndef DATA_CASEINIT_H
 #define DATA_CASEINIT_H 1
 
+struct caseproto;
 struct dictionary;
 struct ccase;
 
 /* Creation and destruction. */
 struct caseinit *caseinit_create (void);
+struct caseinit *caseinit_clone (struct caseinit *);
 void caseinit_clear (struct caseinit *);
 void caseinit_destroy (struct caseinit *);
 
@@ -45,6 +47,12 @@ void caseinit_mark_for_init (struct caseinit *, const struct dictionary *);
 
 /* Initialize data and copy data from case to case. */
 void caseinit_init_vars (const struct caseinit *, struct ccase *);
-void caseinit_update_left_vars (struct caseinit *, const struct ccase *);
+void caseinit_save_left_vars (struct caseinit *, const struct ccase *);
+void caseinit_restore_left_vars (struct caseinit *, struct ccase *);
+
+/* Translate. */
+struct casereader *caseinit_translate_casereader_to_init_vars (
+  struct caseinit *, const struct caseproto *output_proto,
+  struct casereader *);
 
 #endif /* data/caseinit.h */