#include <float.h>
#include <stdlib.h>
-#include <data/case-source.h>
#include <data/case.h>
-#include <data/case-source.h>
+#include <data/caseinit.h>
+#include <data/casereader-provider.h>
#include <data/dictionary.h>
#include <data/procedure.h>
#include <data/transformations.h>
struct trns_chain *trns_chain;
enum trns_result restart;
- bool inited_case; /* Did one-time case initialization? */
size_t case_nr; /* Incremented by END CASE transformation. */
- enum value_init_type *init; /* How to initialize each `union value'. */
- size_t init_cnt; /* Number of elements in inp_init. */
- size_t case_size; /* Size of case in bytes. */
+ struct caseinit *init;
+ size_t value_cnt;
};
static void destroy_input_program (struct input_program_pgm *);
static trns_proc_func end_file_trns_proc;
static trns_free_func reread_trns_free;
-static const struct case_source_class input_program_source_class;
+static const struct casereader_class input_program_casereader_class;
static bool inside_input_program;
cmd_input_program (struct lexer *lexer, struct dataset *ds)
{
struct input_program_pgm *inp;
- size_t i;
bool saw_END_CASE = false;
- discard_variables (ds);
+ proc_discard_active_file (ds);
if (lex_token (lexer) != '.')
return lex_end_of_command (lexer);
if (result == CMD_EOF)
msg (SE, _("Unexpected end-of-file within INPUT PROGRAM."));
inside_input_program = false;
- discard_variables (ds);
+ proc_discard_active_file (ds);
destroy_input_program (inp);
return result;
}
if (dict_get_next_value_idx (dataset_dict (ds)) == 0)
{
msg (SE, _("Input program did not create any variables."));
- discard_variables (ds);
+ proc_discard_active_file (ds);
destroy_input_program (inp);
return CMD_FAILURE;
}
trns_chain_finalize (inp->trns_chain);
inp->restart = TRNS_CONTINUE;
- inp->inited_case = false;
- inp->case_nr = 1;
/* Figure out how to initialize each input case. */
- inp->init_cnt = dict_get_next_value_idx (dataset_dict (ds));
- inp->init = xnmalloc (inp->init_cnt, sizeof *inp->init);
- for (i = 0; i < inp->init_cnt; i++)
- inp->init[i] = -1;
- for (i = 0; i < dict_get_var_cnt (dataset_dict (ds)); i++)
- {
- struct variable *var = dict_get_var (dataset_dict (ds), i);
- size_t value_cnt = var_get_value_cnt (var);
- enum value_init_type value_init;
- size_t j;
-
- value_init = var_is_numeric (var) ? INP_NUMERIC : INP_STRING;
- value_init |= var_get_leave (var) ? INP_INIT_ONCE : INP_REINIT;
-
- for (j = 0; j < value_cnt; j++)
- inp->init[j + var_get_case_index (var)] = value_init;
- }
- for (i = 0; i < inp->init_cnt; i++)
- assert (inp->init[i] != -1);
- inp->case_size = dict_get_case_size (dataset_dict (ds));
-
- proc_set_source (ds,
- create_case_source (&input_program_source_class, inp));
+ inp->init = caseinit_create ();
+ caseinit_mark_for_init (inp->init, dataset_dict (ds));
+ inp->value_cnt = dict_get_next_value_idx (dataset_dict (ds));
+
+ proc_set_active_file_data (
+ ds, casereader_create_sequential (NULL, inp->value_cnt, CASENUMBER_MAX,
+ &input_program_casereader_class, inp));
return CMD_SUCCESS;
}
return CMD_END_INPUT_PROGRAM;
}
-/* Initializes case C. Called before the first case is read. */
-static void
-init_case (const struct input_program_pgm *inp, struct ccase *c)
-{
- size_t i;
-
- for (i = 0; i < inp->init_cnt; i++)
- switch (inp->init[i])
- {
- case INP_NUMERIC | INP_INIT_ONCE:
- case_data_rw_idx (c, i)->f = 0.0;
- break;
- case INP_NUMERIC | INP_REINIT:
- case_data_rw_idx (c, i)->f = SYSMIS;
- break;
- case INP_STRING | INP_INIT_ONCE:
- case INP_STRING | INP_REINIT:
- memset (case_data_rw_idx (c, i)->s, ' ',
- sizeof case_data_rw_idx (c, i)->s);
- break;
- default:
- NOT_REACHED ();
- }
-}
-
-/* Clears case C. Called between reading successive records. */
-static void
-clear_case (const struct input_program_pgm *inp, struct ccase *c)
-{
- size_t i;
-
- for (i = 0; i < inp->init_cnt; i++)
- switch (inp->init[i])
- {
- case INP_NUMERIC | INP_INIT_ONCE:
- break;
- case INP_NUMERIC | INP_REINIT:
- case_data_rw_idx (c, i)->f = SYSMIS;
- break;
- case INP_STRING | INP_INIT_ONCE:
- break;
- case INP_STRING | INP_REINIT:
- memset (case_data_rw_idx (c, i)->s, ' ',
- sizeof case_data_rw_idx (c, i)->s);
- break;
- default:
- NOT_REACHED ();
- }
-}
-
/* Returns true if STATE is valid given the transformations that
are allowed within INPUT PROGRAM. */
static bool
Returns true if successful, false at end of file or if an
I/O error occurred. */
static bool
-input_program_source_read (struct case_source *source, struct ccase *c)
+input_program_casereader_read (struct casereader *reader UNUSED, void *inp_,
+ struct ccase *c)
{
- struct input_program_pgm *inp = source->aux;
+ struct input_program_pgm *inp = inp_;
- if (!inp->inited_case)
- {
- init_case (inp, c);
- inp->inited_case = true;
- }
+ case_create (c, inp->value_cnt);
do
{
assert (is_valid_state (inp->restart));
- if (inp->restart == TRNS_ERROR || inp->restart == TRNS_END_FILE)
- return false;
+ if (inp->restart == TRNS_ERROR || inp->restart == TRNS_END_FILE)
+ {
+ case_destroy (c);
+ return false;
+ }
- clear_case (inp, c);
+ caseinit_init_reinit_vars (inp->init, c);
+ caseinit_init_left_vars (inp->init, c);
inp->restart = trns_chain_execute (inp->trns_chain, inp->restart,
c, &inp->case_nr);
assert (is_valid_state (inp->restart));
+ caseinit_update_left_vars (inp->init, c);
}
while (inp->restart < 0);
if (pgm != NULL)
{
trns_chain_destroy (pgm->trns_chain);
- free (pgm->init);
+ caseinit_destroy (pgm->init);
free (pgm);
}
}
-/* Destroys the source.
- Returns true if successful read, false if an I/O occurred
- during destruction or previously. */
-static bool
-input_program_source_destroy (struct case_source *source)
+/* Destroys the casereader. */
+static void
+input_program_casereader_destroy (struct casereader *reader UNUSED, void *inp_)
{
- struct input_program_pgm *inp = source->aux;
- bool ok = inp->restart != TRNS_ERROR;
+ struct input_program_pgm *inp = inp_;
+ if (inp->restart == TRNS_ERROR)
+ casereader_force_error (reader);
destroy_input_program (inp);
- return ok;
}
-static const struct case_source_class input_program_source_class =
+static const struct casereader_class input_program_casereader_class =
{
- "INPUT PROGRAM",
+ input_program_casereader_read,
+ input_program_casereader_destroy,
+ NULL,
NULL,
- input_program_source_read,
- input_program_source_destroy,
};
\f
int
return lex_end_of_command (lexer);
}
-/* Sends the current case as the source's output. */
+/* Outputs the current case */
int
end_case_trns_proc (void *inp_, struct ccase *c UNUSED,
casenumber case_nr UNUSED)
projects / pspp-builds.git / blobdiff