X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Fxforms%2Frecode.c;h=62cf387eee9faf30b6afa4cff210c17124e76a26;hb=bc19562deb692e6db3271eb0402e9f9c99e4cbcb;hp=23fa2a68a3de4f3548fea3469b339679dd099d03;hpb=f5c108becd49d78f4898cab11352291f5689d24e;p=pspp-builds.git
diff --git a/src/language/xforms/recode.c b/src/language/xforms/recode.c
index 23fa2a68..62cf387e 100644
--- a/src/language/xforms/recode.c
+++ b/src/language/xforms/recode.c
@@ -1,20 +1,18 @@
-/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-9, 2000, 2009, 2010, 2011 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 the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- This program 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
- General Public License for more details.
+ This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see . */
#include
@@ -22,24 +20,26 @@
#include
#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
-#include
+#include "data/case.h"
+#include "data/data-in.h"
+#include "data/dictionary.h"
+#include "data/format.h"
+#include "data/procedure.h"
+#include "data/transformations.h"
+#include "data/variable.h"
+#include "language/command.h"
+#include "language/lexer/lexer.h"
+#include "language/lexer/value-parser.h"
+#include "language/lexer/variable-parser.h"
+#include "libpspp/assertion.h"
+#include "libpspp/cast.h"
+#include "libpspp/compiler.h"
+#include "libpspp/i18n.h"
+#include "libpspp/message.h"
+#include "libpspp/pool.h"
+#include "libpspp/str.h"
+
+#include "gl/xalloc.h"
#include "gettext.h"
#define _(msgid) gettext (msgid)
@@ -57,25 +57,18 @@ enum map_in_type
MAP_CONVERT /* "123" => 123. */
};
-/* A value involved in a RECODE mapping. */
-union recode_value
- {
- double f; /* Numeric. */
- char *c; /* Short or long string. */
- };
-
/* Describes input values to be mapped. */
struct map_in
{
enum map_in_type type; /* One of MAP_*. */
- union recode_value x, y; /* Source values. */
+ union value x, y; /* Source values. */
};
/* Describes the value used as output from a mapping. */
struct map_out
{
bool copy_input; /* If true, copy input to output. */
- union recode_value value; /* If copy_input false, recoded value. */
+ union value value; /* If copy_input false, recoded value. */
int width; /* If copy_input false, output value width. */
};
@@ -92,19 +85,24 @@ struct recode_trns
{
struct pool *pool;
+
+
/* Variable types, for convenience. */
- enum var_type src_type; /* src_vars[*]->type. */
- enum var_type dst_type; /* dst_vars[*]->type. */
+ enum val_type src_type; /* src_vars[*] type. */
+ enum val_type dst_type; /* dst_vars[*] type. */
/* Variables. */
const struct variable **src_vars; /* Source variables. */
const struct variable **dst_vars; /* Destination variables. */
+ const struct dictionary *dst_dict; /* Dictionary of dst_vars */
char **dst_names; /* Name of dest variables, if they're new. */
size_t var_cnt; /* Number of variables. */
/* Mappings. */
struct mapping *mappings; /* Value mappings. */
size_t map_cnt; /* Number of mappings. */
+ int max_src_width; /* Maximum width of src_vars[*]. */
+ int max_dst_width; /* Maximum width of any map_out in mappings. */
};
static bool parse_src_vars (struct lexer *, struct recode_trns *, const struct dictionary *dict);
@@ -115,16 +113,16 @@ static void add_mapping (struct recode_trns *,
size_t *map_allocated, const struct map_in *);
static bool parse_map_in (struct lexer *lexer, struct map_in *, struct pool *,
- enum var_type src_type, size_t max_src_width);
+ enum val_type src_type, size_t max_src_width);
static void set_map_in_generic (struct map_in *, enum map_in_type);
static void set_map_in_num (struct map_in *, enum map_in_type, double, double);
static void set_map_in_str (struct map_in *, struct pool *,
- const struct string *, size_t width);
+ struct substring, size_t width);
static bool parse_map_out (struct lexer *lexer, struct pool *, struct map_out *);
static void set_map_out_num (struct map_out *, double);
static void set_map_out_str (struct map_out *, struct pool *,
- const struct string *);
+ struct substring);
static void enlarge_dst_widths (struct recode_trns *);
static void create_dst_vars (struct recode_trns *, struct dictionary *);
@@ -156,20 +154,21 @@ cmd_recode (struct lexer *lexer, struct dataset *ds)
/* Ensure that all the output strings are at least as wide
as the widest destination variable. */
- if (trns->dst_type == VAR_STRING)
+ if (trns->dst_type == VAL_STRING)
enlarge_dst_widths (trns);
/* Create destination variables, if needed.
This must be the final step; otherwise we'd have to
delete destination variables on failure. */
+ trns->dst_dict = dataset_dict (ds);
if (trns->src_vars != trns->dst_vars)
- create_dst_vars (trns, dataset_dict (ds));
+ create_dst_vars (trns, dataset_dict (ds));
/* Done. */
add_transformation (ds,
recode_trns_proc, recode_trns_free, trns);
}
- while (lex_match (lexer, '/'));
+ while (lex_match (lexer, T_SLASH));
return lex_end_of_command (lexer);
}
@@ -195,18 +194,17 @@ parse_src_vars (struct lexer *lexer,
static bool
parse_mappings (struct lexer *lexer, struct recode_trns *trns)
{
- size_t max_src_width;
size_t map_allocated;
bool have_dst_type;
size_t i;
/* Find length of longest source variable. */
- max_src_width = var_get_width (trns->src_vars[0]);
+ trns->max_src_width = var_get_width (trns->src_vars[0]);
for (i = 1; i < trns->var_cnt; i++)
{
size_t var_width = var_get_width (trns->src_vars[i]);
- if (var_width > max_src_width)
- max_src_width = var_width;
+ if (var_width > trns->max_src_width)
+ trns->max_src_width = var_width;
}
/* Parse the mappings in parentheses. */
@@ -214,11 +212,11 @@ parse_mappings (struct lexer *lexer, struct recode_trns *trns)
trns->map_cnt = 0;
map_allocated = 0;
have_dst_type = false;
- if (!lex_force_match (lexer, '('))
+ if (!lex_force_match (lexer, T_LPAREN))
return false;
do
{
- enum var_type dst_type;
+ enum val_type dst_type;
if (!lex_match_id (lexer, "CONVERT"))
{
@@ -232,17 +230,22 @@ parse_mappings (struct lexer *lexer, struct recode_trns *trns)
do
{
struct map_in in;
+
if (!parse_map_in (lexer, &in, trns->pool,
- trns->src_type, max_src_width))
+ trns->src_type, trns->max_src_width))
return false;
add_mapping (trns, &map_allocated, &in);
- lex_match (lexer, ',');
+ lex_match (lexer, T_COMMA);
}
- while (!lex_match (lexer, '='));
+ while (!lex_match (lexer, T_EQUALS));
if (!parse_map_out (lexer, trns->pool, &out))
return false;
- dst_type = var_type_from_width (out.width);
+
+ if (out.copy_input)
+ dst_type = trns->src_type;
+ else
+ dst_type = val_type_from_width (out.width);
if (have_dst_type && dst_type != trns->dst_type)
{
msg (SE, _("Inconsistent target variable types. "
@@ -262,9 +265,9 @@ parse_mappings (struct lexer *lexer, struct recode_trns *trns)
add_mapping (trns, &map_allocated, &in);
set_map_out_num (&trns->mappings[trns->map_cnt - 1].out, 0.0);
- dst_type = VAR_NUMERIC;
- if (trns->src_type != VAR_STRING
- || (have_dst_type && trns->dst_type != VAR_NUMERIC))
+ dst_type = VAL_NUMERIC;
+ if (trns->src_type != VAL_STRING
+ || (have_dst_type && trns->dst_type != VAL_NUMERIC))
{
msg (SE, _("CONVERT requires string input values and "
"numeric output values."));
@@ -274,10 +277,10 @@ parse_mappings (struct lexer *lexer, struct recode_trns *trns)
trns->dst_type = dst_type;
have_dst_type = true;
- if (!lex_force_match (lexer, ')'))
+ if (!lex_force_match (lexer, T_RPAREN))
return false;
}
- while (lex_match (lexer, '('));
+ while (lex_match (lexer, T_LPAREN));
return true;
}
@@ -289,11 +292,12 @@ parse_mappings (struct lexer *lexer, struct recode_trns *trns)
false on parse error. */
static bool
parse_map_in (struct lexer *lexer, struct map_in *in, struct pool *pool,
- enum var_type src_type, size_t max_src_width)
+ enum val_type src_type, size_t max_src_width)
{
+
if (lex_match_id (lexer, "ELSE"))
set_map_in_generic (in, MAP_ELSE);
- else if (src_type == VAR_NUMERIC)
+ else if (src_type == VAL_NUMERIC)
{
if (lex_match_id (lexer, "MISSING"))
set_map_in_generic (in, MAP_MISSING);
@@ -309,16 +313,21 @@ parse_map_in (struct lexer *lexer, struct map_in *in, struct pool *pool,
}
else
{
- if (!lex_force_string (lexer))
+ if (lex_match_id (lexer, "MISSING"))
+ set_map_in_generic (in, MAP_MISSING);
+ else if (!lex_force_string (lexer))
return false;
- set_map_in_str (in, pool, lex_tokstr (lexer), max_src_width);
- lex_get (lexer);
- if (lex_token (lexer) == T_ID
- && lex_id_match (ss_cstr ("THRU"), ss_cstr (lex_tokid (lexer))))
- {
- msg (SE, _("THRU is not allowed with string variables."));
- return false;
- }
+ else
+ {
+ set_map_in_str (in, pool, lex_tokss (lexer), max_src_width);
+ lex_get (lexer);
+ if (lex_token (lexer) == T_ID
+ && lex_id_match (ss_cstr ("THRU"), lex_tokss (lexer)))
+ {
+ msg (SE, _("THRU is not allowed with string variables."));
+ return false;
+ }
+ }
}
return true;
@@ -362,11 +371,13 @@ set_map_in_num (struct map_in *in, enum map_in_type type, double x, double y)
right to WIDTH characters long. */
static void
set_map_in_str (struct map_in *in, struct pool *pool,
- const struct string *string, size_t width)
+ struct substring string, size_t width)
{
in->type = MAP_SINGLE;
- in->x.c = pool_alloc_unaligned (pool, width);
- buf_copy_rpad (in->x.c, width, ds_data (string), ds_length (string));
+ value_init_pool (pool, &in->x, width);
+ value_copy_buf_rpad (&in->x, width,
+ CHAR_CAST_BUG (uint8_t *, ss_data (string)),
+ ss_length (string), ' ');
}
/* Parses a mapping output value into OUT, allocating memory from
@@ -381,13 +392,16 @@ parse_map_out (struct lexer *lexer, struct pool *pool, struct map_out *out)
}
else if (lex_match_id (lexer, "SYSMIS"))
set_map_out_num (out, SYSMIS);
- else if (lex_token (lexer) == T_STRING)
+ else if (lex_is_string (lexer))
{
- set_map_out_str (out, pool, lex_tokstr (lexer));
+ set_map_out_str (out, pool, lex_tokss (lexer));
lex_get (lexer);
}
- else if (lex_match_id (lexer, "COPY"))
- out->copy_input = true;
+ else if (lex_match_id (lexer, "COPY"))
+ {
+ out->copy_input = true;
+ out->width = 0;
+ }
else
{
lex_error (lexer, _("expecting output value"));
@@ -408,14 +422,22 @@ set_map_out_num (struct map_out *out, double value)
/* Sets OUT as a string mapping output with the given VALUE. */
static void
set_map_out_str (struct map_out *out, struct pool *pool,
- const struct string *value)
+ const struct substring value)
{
- const char *string = ds_data (value);
- size_t length = ds_length (value);
+ const char *string = ss_data (value);
+ size_t length = ss_length (value);
+
+ if (length == 0)
+ {
+ /* A length of 0 will yield a numeric value, which is not
+ what we want. */
+ string = " ";
+ length = 1;
+ }
out->copy_input = false;
- out->value.c = pool_alloc_unaligned (pool, length);
- memcpy (out->value.c, string, length);
+ value_init_pool (pool, &out->value, length);
+ memcpy (value_str_rw (&out->value, length), string, length);
out->width = length;
}
@@ -439,10 +461,10 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
if (name_cnt != trns->var_cnt)
{
- msg (SE, _("%u variable(s) cannot be recoded into "
- "%u variable(s). Specify the same number "
+ msg (SE, _("%zu variable(s) cannot be recoded into "
+ "%zu variable(s). Specify the same number "
"of variables as source and target variables."),
- (unsigned) trns->var_cnt, (unsigned) name_cnt);
+ trns->var_cnt, name_cnt);
return false;
}
@@ -452,7 +474,7 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
{
const struct variable *v;
v = trns->dst_vars[i] = dict_lookup_var (dict, trns->dst_names[i]);
- if (v == NULL && trns->dst_type == VAR_STRING)
+ if (v == NULL && trns->dst_type == VAL_STRING)
{
msg (SE, _("There is no variable named "
"%s. (All string variables specified "
@@ -463,6 +485,7 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
return false;
}
}
+
}
else
{
@@ -471,8 +494,8 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
{
msg (SE, _("INTO is required with %s input values "
"and %s output values."),
- trns->src_type == VAR_NUMERIC ? _("numeric") : _("string"),
- trns->dst_type == VAR_NUMERIC ? _("numeric") : _("string"));
+ trns->src_type == VAL_NUMERIC ? _("numeric") : _("string"),
+ trns->dst_type == VAL_NUMERIC ? _("numeric") : _("string"));
return false;
}
}
@@ -484,7 +507,7 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
{
msg (SE, _("Type mismatch. Cannot store %s data in "
"%s variable %s."),
- trns->dst_type == VAR_STRING ? _("string") : _("numeric"),
+ trns->dst_type == VAL_STRING ? _("string") : _("numeric"),
var_is_alpha (v) ? _("string") : _("numeric"),
var_get_name (v));
return false;
@@ -499,26 +522,22 @@ parse_dst_vars (struct lexer *lexer, struct recode_trns *trns,
static void
enlarge_dst_widths (struct recode_trns *trns)
{
- size_t max_dst_width;
size_t i;
- max_dst_width = 0;
+ trns->max_dst_width = 0;
for (i = 0; i < trns->var_cnt; i++)
{
const struct variable *v = trns->dst_vars[i];
- if (var_get_width (v) > max_dst_width)
- max_dst_width = var_get_width (v);
+ if (var_get_width (v) > trns->max_dst_width)
+ trns->max_dst_width = var_get_width (v);
}
for (i = 0; i < trns->map_cnt; i++)
{
struct map_out *out = &trns->mappings[i].out;
- if (!out->copy_input && out->width < max_dst_width)
- {
- char *s = pool_alloc_unaligned (trns->pool, max_dst_width + 1);
- buf_copy_rpad (s, max_dst_width + 1, out->value.c, out->width);
- out->value.c = s;
- }
+ if (!out->copy_input)
+ value_resize_pool (trns->pool, &out->value,
+ out->width, trns->max_dst_width);
}
}
@@ -586,8 +605,11 @@ find_src_numeric (struct recode_trns *trns, double value, const struct variable
/* Returns the output mapping in TRNS for an input of VALUE with
the given WIDTH, or a null pointer if there is no mapping. */
static const struct map_out *
-find_src_string (struct recode_trns *trns, const char *value, int width)
+find_src_string (struct recode_trns *trns, const uint8_t *value,
+ const struct variable *src_var)
{
+ const char *encoding = dict_get_encoding (trns->dst_dict);
+ int width = var_get_width (src_var);
struct mapping *m;
for (m = trns->mappings; m < trns->mappings + trns->map_cnt; m++)
@@ -599,7 +621,8 @@ find_src_string (struct recode_trns *trns, const char *value, int width)
switch (in->type)
{
case MAP_SINGLE:
- match = !memcmp (value, in->x.c, width);
+ match = !memcmp (value, value_str (&in->x, trns->max_src_width),
+ width);
break;
case MAP_ELSE:
match = true;
@@ -607,13 +630,19 @@ find_src_string (struct recode_trns *trns, const char *value, int width)
case MAP_CONVERT:
{
union value uv;
+ char *error;
+
+ error = data_in (ss_buffer (CHAR_CAST_BUG (char *, value), width),
+ C_ENCODING, FMT_F, &uv, 0, encoding);
+ match = error == NULL;
+ free (error);
- msg_disable ();
- match = data_in (ss_buffer (value, width), FMT_F, 0, 0, &uv, 0);
- msg_enable ();
out->value.f = uv.f;
break;
}
+ case MAP_MISSING:
+ match = var_is_str_missing (src_var, value, MV_ANY);
+ break;
default:
NOT_REACHED ();
}
@@ -627,45 +656,49 @@ find_src_string (struct recode_trns *trns, const char *value, int width)
/* Performs RECODE transformation. */
static int
-recode_trns_proc (void *trns_, struct ccase *c, casenumber case_idx UNUSED)
+recode_trns_proc (void *trns_, struct ccase **c, casenumber case_idx UNUSED)
{
struct recode_trns *trns = trns_;
size_t i;
+ *c = case_unshare (*c);
for (i = 0; i < trns->var_cnt; i++)
{
const struct variable *src_var = trns->src_vars[i];
const struct variable *dst_var = trns->dst_vars[i];
-
- const union value *src_data = case_data (c, src_var);
- union value *dst_data = case_data_rw (c, dst_var);
-
const struct map_out *out;
- if (trns->src_type == VAR_NUMERIC)
- out = find_src_numeric (trns, src_data->f, src_var);
+ if (trns->src_type == VAL_NUMERIC)
+ out = find_src_numeric (trns, case_num (*c, src_var), src_var);
else
- out = find_src_string (trns, src_data->s, var_get_width (src_var));
+ out = find_src_string (trns, case_str (*c, src_var), src_var);
- if (trns->dst_type == VAR_NUMERIC)
+ if (trns->dst_type == VAL_NUMERIC)
{
+ double *dst = &case_data_rw (*c, dst_var)->f;
if (out != NULL)
- dst_data->f = !out->copy_input ? out->value.f : src_data->f;
+ *dst = !out->copy_input ? out->value.f : case_num (*c, src_var);
else if (trns->src_vars != trns->dst_vars)
- dst_data->f = SYSMIS;
+ *dst = SYSMIS;
}
else
{
+ char *dst = CHAR_CAST_BUG (char *, case_str_rw (*c, dst_var));
if (out != NULL)
{
if (!out->copy_input)
- memcpy (dst_data->s, out->value.c, var_get_width (dst_var));
+ memcpy (dst, value_str (&out->value, trns->max_dst_width),
+ var_get_width (dst_var));
else if (trns->src_vars != trns->dst_vars)
- buf_copy_rpad (dst_data->s, var_get_width (dst_var),
- src_data->s, var_get_width (src_var));
+ {
+ union value *dst_data = case_data_rw (*c, dst_var);
+ const union value *src_data = case_data (*c, src_var);
+ value_copy_rpad (dst_data, var_get_width (dst_var),
+ src_data, var_get_width (src_var), ' ');
+ }
}
else if (trns->src_vars != trns->dst_vars)
- memset (dst_data->s, ' ', var_get_width (dst_var));
+ memset (dst, ' ', var_get_width (dst_var));
}
}