/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2006 Free Software Foundation, Inc.
Written by Ben Pfaff <blp@gnu.org>.
This program is free software; you can redistribute it and/or
enum missing_treatment missing; /* How to treat missing values. */
struct agr_var *agr_vars; /* First aggregate variable. */
struct dictionary *dict; /* Aggregate dictionary. */
+ const struct dictionary *src_dict; /* Dict of the source */
int case_cnt; /* Counts aggregated cases. */
struct ccase agr_case; /* Aggregate case for output. */
};
const struct ccase *);
/* Prototypes. */
-static bool parse_aggregate_functions (struct agr_proc *);
+static bool parse_aggregate_functions (struct lexer *, const struct dictionary *,
+ struct agr_proc *);
static void agr_destroy (struct agr_proc *);
static bool aggregate_single_case (struct agr_proc *agr,
- const struct ccase *input,
- struct ccase *output);
+ const struct ccase *input,
+ struct ccase *output);
static void dump_aggregate_info (struct agr_proc *agr, struct ccase *output);
/* Aggregating to the active file. */
-static bool agr_to_active_file (const struct ccase *, void *aux);
+static bool agr_to_active_file (const struct ccase *, void *aux, const struct dataset *);
/* Aggregating to a system file. */
-static bool presorted_agr_to_sysfile (const struct ccase *, void *aux);
+static bool presorted_agr_to_sysfile (const struct ccase *, void *aux, const struct dataset *);
\f
/* Parsing. */
/* Parses and executes the AGGREGATE procedure. */
int
-cmd_aggregate (void)
+cmd_aggregate (struct lexer *lexer, struct dataset *ds)
{
+ struct dictionary *dict = dataset_dict (ds);
struct agr_proc agr;
struct file_handle *out_file = NULL;
case_nullify (&agr.break_case);
agr.dict = dict_create ();
- dict_set_label (agr.dict, dict_get_label (dataset_dict (current_dataset)));
- dict_set_documents (agr.dict, dict_get_documents (dataset_dict (current_dataset)));
+ agr.src_dict = dict;
+ dict_set_label (agr.dict, dict_get_label (dict));
+ dict_set_documents (agr.dict, dict_get_documents (dict));
/* OUTFILE subcommand must be first. */
- if (!lex_force_match_id ("OUTFILE"))
+ if (!lex_force_match_id (lexer, "OUTFILE"))
goto error;
- lex_match ('=');
- if (!lex_match ('*'))
+ lex_match (lexer, '=');
+ if (!lex_match (lexer, '*'))
{
- out_file = fh_parse (FH_REF_FILE | FH_REF_SCRATCH);
+ out_file = fh_parse (lexer, FH_REF_FILE | FH_REF_SCRATCH);
if (out_file == NULL)
goto error;
}
/* Read most of the subcommands. */
for (;;)
{
- lex_match ('/');
+ lex_match (lexer, '/');
- if (lex_match_id ("MISSING"))
+ if (lex_match_id (lexer, "MISSING"))
{
- lex_match ('=');
- if (!lex_match_id ("COLUMNWISE"))
+ lex_match (lexer, '=');
+ if (!lex_match_id (lexer, "COLUMNWISE"))
{
- lex_error (_("while expecting COLUMNWISE"));
+ lex_error (lexer, _("while expecting COLUMNWISE"));
goto error;
}
agr.missing = COLUMNWISE;
}
- else if (lex_match_id ("DOCUMENT"))
+ else if (lex_match_id (lexer, "DOCUMENT"))
copy_documents = true;
- else if (lex_match_id ("PRESORTED"))
+ else if (lex_match_id (lexer, "PRESORTED"))
presorted = true;
- else if (lex_match_id ("BREAK"))
+ else if (lex_match_id (lexer, "BREAK"))
{
int i;
- lex_match ('=');
- agr.sort = sort_parse_criteria (dataset_dict (current_dataset),
+ lex_match (lexer, '=');
+ agr.sort = sort_parse_criteria (lexer, dict,
&agr.break_vars, &agr.break_var_cnt,
&saw_direction, NULL);
if (agr.sort == NULL)
}
else
{
- lex_error (_("expecting BREAK"));
+ lex_error (lexer, _("expecting BREAK"));
goto error;
}
}
"the same way as the input data."));
/* Read in the aggregate functions. */
- lex_match ('/');
- if (!parse_aggregate_functions (&agr))
+ lex_match (lexer, '/');
+ if (!parse_aggregate_functions (lexer, dict, &agr))
goto error;
/* Delete documents. */
{
/* The active file will be replaced by the aggregated data,
so TEMPORARY is moot. */
- proc_cancel_temporary_transformations (current_dataset);
+ proc_cancel_temporary_transformations (ds);
if (agr.sort != NULL && !presorted)
{
- if (!sort_active_file_in_place (agr.sort))
+ if (!sort_active_file_in_place (ds, agr.sort))
goto error;
}
agr.sink = create_case_sink (&storage_sink_class, agr.dict, NULL);
if (agr.sink->class->open != NULL)
agr.sink->class->open (agr.sink);
- proc_set_sink (current_dataset,
+ proc_set_sink (ds,
create_case_sink (&null_sink_class,
- dataset_dict (current_dataset), NULL));
- if (!procedure (current_dataset,agr_to_active_file, &agr))
+ dict, NULL));
+ if (!procedure (ds, agr_to_active_file, &agr))
goto error;
if (agr.case_cnt > 0)
{
if (!agr.sink->class->write (agr.sink, &agr.agr_case))
goto error;
}
- discard_variables (current_dataset);
- dict_destroy (dataset_dict (current_dataset));
- dataset_set_dict (current_dataset, agr.dict);
+ discard_variables (ds);
+ dict_destroy (dict);
+ dataset_set_dict (ds, agr.dict);
agr.dict = NULL;
- proc_set_source (current_dataset,
+ proc_set_source (ds,
agr.sink->class->make_source (agr.sink));
free_case_sink (agr.sink);
}
struct ccase c;
bool ok = true;
- dst = sort_active_file_to_casefile (agr.sort);
+ dst = sort_active_file_to_casefile (ds, agr.sort);
if (dst == NULL)
goto error;
reader = casefile_get_destructive_reader (dst);
else
{
/* Active file is already sorted. */
- if (!procedure (current_dataset,presorted_agr_to_sysfile, &agr))
+ if (!procedure (ds, presorted_agr_to_sysfile, &agr))
goto error;
}
/* Parse all the aggregate functions. */
static bool
-parse_aggregate_functions (struct agr_proc *agr)
+parse_aggregate_functions (struct lexer *lexer, const struct dictionary *dict, struct agr_proc *agr)
{
struct agr_var *tail; /* Tail of linked list starting at agr->vars. */
char **dest;
char **dest_label;
size_t n_dest;
+ struct string function_name;
int include_missing;
const struct agr_func *function;
arg[1].c = NULL;
/* Parse the list of target variables. */
- while (!lex_match ('='))
+ while (!lex_match (lexer, '='))
{
size_t n_dest_prev = n_dest;
- if (!parse_DATA_LIST_vars (&dest, &n_dest,
+ if (!parse_DATA_LIST_vars (lexer, &dest, &n_dest,
PV_APPEND | PV_SINGLE | PV_NO_SCRATCH))
goto error;
for (j = n_dest_prev; j < n_dest; j++)
dest_label[j] = NULL;
}
+
+
- if (token == T_STRING)
+ if (lex_token (lexer) == T_STRING)
{
- ds_truncate (&tokstr, 255);
- dest_label[n_dest - 1] = ds_xstrdup (&tokstr);
- lex_get ();
+ struct string label;
+ ds_init_string (&label, lex_tokstr (lexer));
+
+ ds_truncate (&label, 255);
+ dest_label[n_dest - 1] = ds_xstrdup (&label);
+ lex_get (lexer);
+ ds_destroy (&label);
}
}
/* Get the name of the aggregation function. */
- if (token != T_ID)
+ if (lex_token (lexer) != T_ID)
{
- lex_error (_("expecting aggregation function"));
+ lex_error (lexer, _("expecting aggregation function"));
goto error;
}
include_missing = 0;
- if (tokid[strlen (tokid) - 1] == '.')
- {
+
+ ds_init_string (&function_name, lex_tokstr (lexer));
+
+ ds_chomp (&function_name, '.');
+
+ if (lex_tokid(lexer)[strlen (lex_tokid (lexer)) - 1] == '.')
include_missing = 1;
- tokid[strlen (tokid) - 1] = 0;
- }
-
+
for (function = agr_func_tab; function->name; function++)
- if (!strcasecmp (function->name, tokid))
+ if (!strcasecmp (function->name, ds_cstr (&function_name)))
break;
if (NULL == function->name)
{
- msg (SE, _("Unknown aggregation function %s."), tokid);
+ msg (SE, _("Unknown aggregation function %s."),
+ ds_cstr (&function_name));
goto error;
}
+ ds_destroy (&function_name);
func_index = function - agr_func_tab;
- lex_get ();
+ lex_get (lexer);
/* Check for leading lparen. */
- if (!lex_match ('('))
+ if (!lex_match (lexer, '('))
{
if (func_index == N)
func_index = N_NO_VARS;
func_index = NU_NO_VARS;
else
{
- lex_error (_("expecting `('"));
+ lex_error (lexer, _("expecting `('"));
goto error;
}
}
else if (function->n_args)
pv_opts |= PV_SAME_TYPE;
- if (!parse_variables (dataset_dict (current_dataset), &src, &n_src, pv_opts))
+ if (!parse_variables (lexer, dict, &src, &n_src, pv_opts))
goto error;
}
{
int type;
- lex_match (',');
- if (token == T_STRING)
+ lex_match (lexer, ',');
+ if (lex_token (lexer) == T_STRING)
{
- arg[i].c = ds_xstrdup (&tokstr);
+ arg[i].c = ds_xstrdup (lex_tokstr (lexer));
type = ALPHA;
}
- else if (lex_is_number ())
+ else if (lex_is_number (lexer))
{
- arg[i].f = tokval;
+ arg[i].f = lex_tokval (lexer);
type = NUMERIC;
} else {
msg (SE, _("Missing argument %d to %s."), i + 1,
goto error;
}
- lex_get ();
+ lex_get (lexer);
if (type != src[0]->type)
{
}
/* Trailing rparen. */
- if (!lex_match(')'))
+ if (!lex_match (lexer, ')'))
{
- lex_error (_("expecting `)'"));
+ lex_error (lexer, _("expecting `)'"));
goto error;
}
destvar = dict_create_var (agr->dict, dest[i], 0);
if (destvar != NULL)
{
+ struct fmt_spec f;
if ((func_index == N || func_index == NMISS)
- && dict_get_weight (dataset_dict (current_dataset)) != NULL)
- destvar->print = destvar->write = f8_2;
+ && dict_get_weight (dict) != NULL)
+ f = fmt_for_output (FMT_F, 8, 2);
else
- destvar->print = destvar->write = function->format;
+ f = function->format;
+ destvar->print = destvar->write = f;
}
}
} else {
+ struct fmt_spec f;
v->src = NULL;
destvar = dict_create_var (agr->dict, dest[i], 0);
- if (func_index == N_NO_VARS
- && dict_get_weight (dataset_dict (current_dataset)) != NULL)
- destvar->print = destvar->write = f8_2;
+ if (func_index == N_NO_VARS && dict_get_weight (dict) != NULL)
+ f = fmt_for_output (FMT_F, 8, 2);
else
- destvar->print = destvar->write = function->format;
+ f = function->format;
+ destvar->print = destvar->write = f;
}
if (!destvar)
free (dest);
free (dest_label);
- if (!lex_match ('/'))
+ if (!lex_match (lexer, '/'))
{
- if (token == '.')
+ if (lex_token (lexer) == '.')
return true;
- lex_error ("expecting end of command");
+ lex_error (lexer, "expecting end of command");
return false;
}
continue;
error:
+ ds_destroy (&function_name);
for (i = 0; i < n_dest; i++)
{
free (dest[i]);
double weight;
bool bad_warn = true;
- weight = dict_get_case_weight (dataset_dict (current_dataset), input, &bad_warn);
+ weight = dict_get_case_weight (agr->src_dict, input, &bad_warn);
for (iter = agr->agr_vars; iter; iter = iter->next)
if (iter->src)
are dropped.
Returns true if successful, false if an I/O error occurred. */
static bool
-agr_to_active_file (const struct ccase *c, void *agr_)
+agr_to_active_file (const struct ccase *c, void *agr_, const struct dataset *ds UNUSED)
{
struct agr_proc *agr = agr_;
/* Aggregate the current case and output it if we passed a
breakpoint. */
static bool
-presorted_agr_to_sysfile (const struct ccase *c, void *agr_)
+presorted_agr_to_sysfile (const struct ccase *c, void *agr_,
+ const struct dataset *ds UNUSED)
{
struct agr_proc *agr = agr_;
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