X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=inline;f=src%2Flanguage%2Fstats%2Fflip.c;h=e1ae9330dd89ac143b399509abcbfc505edb0353;hb=refs%2Fbuilds%2F20130902030504%2Fpspp;hp=6049f1fa9c9acfbde0cd035c808e849ccd067c65;hpb=b401615e6db40bf74394839b96600afe3a868a95;p=pspp
diff --git a/src/language/stats/flip.c b/src/language/stats/flip.c
index 6049f1fa9c..e1ae9330dd 100644
--- a/src/language/stats/flip.c
+++ b/src/language/stats/flip.c
@@ -1,5 +1,5 @@
/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2009, 2010, 2011, 2013 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
@@ -14,7 +14,7 @@
You should have received a copy of the GNU General Public License
along with this program. If not, see . */
-#include "config.h"
+#include
#include
#include
@@ -68,7 +68,7 @@ struct flip_pgm
int n_cases; /* Pre-flip number of cases. */
struct variable *new_names_var; /* Variable with new variable names. */
- struct dictionary *dict; /* Dictionary of the names */
+ const char *encoding; /* Variable names' encoding. */
struct var_names old_names; /* Variable names before FLIP. */
struct var_names new_names; /* Variable names after FLIP. */
@@ -87,7 +87,8 @@ static void make_new_var (struct dictionary *, const char *name);
int
cmd_flip (struct lexer *lexer, struct dataset *ds)
{
- struct dictionary *dict = dataset_dict (ds);
+ struct dictionary *old_dict = dataset_dict (ds);
+ struct dictionary *new_dict = NULL;
const struct variable **vars;
struct flip_pgm *flip;
struct casereader *input, *reader;
@@ -108,31 +109,30 @@ cmd_flip (struct lexer *lexer, struct dataset *ds)
flip->file = NULL;
flip->cases_read = 0;
flip->error = false;
- flip->dict = dict;
lex_match (lexer, T_SLASH);
if (lex_match_id (lexer, "VARIABLES"))
{
lex_match (lexer, T_EQUALS);
- if (!parse_variables_const (lexer, dict, &vars, &flip->n_vars,
+ if (!parse_variables_const (lexer, old_dict, &vars, &flip->n_vars,
PV_NO_DUPLICATE))
goto error;
lex_match (lexer, T_SLASH);
}
else
- dict_get_vars (dict, &vars, &flip->n_vars, DC_SYSTEM);
+ dict_get_vars (old_dict, &vars, &flip->n_vars, DC_SYSTEM);
pool_register (flip->pool, free, vars);
lex_match (lexer, T_SLASH);
if (lex_match_id (lexer, "NEWNAMES"))
{
lex_match (lexer, T_EQUALS);
- flip->new_names_var = parse_variable (lexer, dict);
+ flip->new_names_var = parse_variable (lexer, old_dict);
if (!flip->new_names_var)
goto error;
}
else
- flip->new_names_var = dict_lookup_var (dict, "CASE_LBL");
+ flip->new_names_var = dict_lookup_var (old_dict, "CASE_LBL");
if (flip->new_names_var)
{
@@ -161,7 +161,12 @@ cmd_flip (struct lexer *lexer, struct dataset *ds)
/* Read the active dataset into a flip_sink. */
proc_discard_output (ds);
- input = proc_open (ds);
+ /* Save old dictionary. */
+ new_dict = dict_clone (old_dict);
+ flip->encoding = dict_get_encoding (new_dict);
+ dict_clear (new_dict);
+
+ input = proc_open_filtering (ds, false);
while ((c = casereader_read (input)) != NULL)
{
flip->n_cases++;
@@ -185,8 +190,9 @@ cmd_flip (struct lexer *lexer, struct dataset *ds)
}
else
{
- name = data_out_pool (value, dict_get_encoding (flip->dict), var_get_write_format (flip->new_names_var),
- flip->pool);
+ name = data_out_pool (value, dict_get_encoding (old_dict),
+ var_get_write_format (flip->new_names_var),
+ flip->pool);
}
var_names_add (flip->pool, &flip->new_names, name);
}
@@ -203,26 +209,27 @@ cmd_flip (struct lexer *lexer, struct dataset *ds)
}
/* Flip the dictionary. */
- dict_clear (dict);
- dict_create_var_assert (dict, "CASE_LBL", 8);
+ dict_create_var_assert (new_dict, "CASE_LBL", 8);
for (i = 0; i < flip->n_cases; i++)
if (flip->new_names.n_names)
- make_new_var (dict, flip->new_names.names[i]);
+ make_new_var (new_dict, flip->new_names.names[i]);
else
{
char s[3 + INT_STRLEN_BOUND (i) + 1];
sprintf (s, "VAR%03zu", i);
- dict_create_var_assert (dict, s, 0);
+ dict_create_var_assert (new_dict, s, 0);
}
/* Set up flipped data for reading. */
- reader = casereader_create_sequential (NULL, dict_get_proto (dict),
+ reader = casereader_create_sequential (NULL, dict_get_proto (new_dict),
flip->n_vars,
&flip_casereader_class, flip);
+ dataset_set_dict (ds, new_dict);
dataset_set_source (ds, reader);
return CMD_SUCCESS;
error:
+ dict_destroy (new_dict);
destroy_flip_pgm (flip);
return CMD_CASCADING_FAILURE;
}
@@ -398,7 +405,6 @@ static struct ccase *
flip_casereader_read (struct casereader *reader, void *flip_)
{
struct flip_pgm *flip = flip_;
- const char *encoding;
struct ccase *c;
size_t i;
@@ -406,9 +412,8 @@ flip_casereader_read (struct casereader *reader, void *flip_)
return false;
c = case_create (casereader_get_proto (reader));
- encoding = dict_get_encoding (flip->dict);
- data_in (ss_cstr (flip->old_names.names[flip->cases_read]), encoding,
- FMT_A, case_data_rw_idx (c, 0), 8, encoding);
+ data_in (ss_cstr (flip->old_names.names[flip->cases_read]), flip->encoding,
+ FMT_A, case_data_rw_idx (c, 0), 8, flip->encoding);
for (i = 0; i < flip->n_cases; i++)
{