X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Finpt-pgm.c;h=0cbf66f325569d54b828c98eac639c2124ac029b;hb=205eaea8e2d95e20baa2c00a495b0ac4f9646372;hp=144aceb51caa777aca723edcd724e6e9a65a71f5;hpb=5906e30c29662d12594199e1652ba3a7e5670944;p=pspp-builds.git diff --git a/src/inpt-pgm.c b/src/inpt-pgm.c index 144aceb5..0cbf66f3 100644 --- a/src/inpt-pgm.c +++ b/src/inpt-pgm.c @@ -18,10 +18,11 @@ 02111-1307, USA. */ #include -#include +#include "error.h" #include #include #include "alloc.h" +#include "case.h" #include "command.h" #include "data-list.h" #include "dfm.h" @@ -46,26 +47,25 @@ enum value_init_type INP_REINIT = 0, /* Reinitialize for each iteration. */ }; -/* Array that tells INPUT PROGRAM how to initialize each `union - value'. */ -static enum value_init_type *inp_init; - -/* Number of bytes allocated for inp_init. */ -static size_t inp_nval; +struct input_program_pgm + { + 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. */ + }; -static int end_case_trns_proc (struct trns_header *, struct ccase *); -static int end_file_trns_proc (struct trns_header * t, struct ccase * c); -static int reread_trns_proc (struct trns_header *, struct ccase *); -static void reread_trns_free (struct trns_header *); +static trns_proc_func end_case_trns_proc, reread_trns_proc, end_file_trns_proc; +static trns_free_func reread_trns_free; int cmd_input_program (void) { - lex_match_id ("INPUT"); - lex_match_id ("PROGRAM"); discard_variables (); - vfm_source = &input_program_source; + /* FIXME: we shouldn't do this here, but I'm afraid that other + code will check the class of vfm_source. */ + vfm_source = create_case_source (&input_program_source_class, + default_dict, NULL); return lex_end_of_command (); } @@ -73,31 +73,29 @@ cmd_input_program (void) int cmd_end_input_program (void) { + struct input_program_pgm *inp; size_t i; - lex_match_id ("END"); - lex_match_id ("INPUT"); - lex_match_id ("PROGRAM"); - - if (vfm_source != &input_program_source) + if (!case_source_is_class (vfm_source, &input_program_source_class)) { msg (SE, _("No matching INPUT PROGRAM command.")); return CMD_FAILURE; } - if (dict_get_value_cnt (default_dict) == 0) + if (dict_get_next_value_idx (default_dict) == 0) msg (SW, _("No data-input or transformation commands specified " "between INPUT PROGRAM and END INPUT PROGRAM.")); - /* Mark the boundary between INPUT PROGRAM and more-mundane - transformations. */ + /* Mark the boundary between INPUT PROGRAM transformations and + ordinary transformations. */ f_trns = n_trns; - /* Figure out how to initialize temp_case. */ - inp_nval = dict_get_value_cnt (default_dict); - inp_init = xmalloc (inp_nval * sizeof *inp_init); - for (i = 0; i < inp_nval; i++) - inp_init[i] = -1; + /* Figure out how to initialize each input case. */ + inp = xmalloc (sizeof *inp); + inp->init_cnt = dict_get_next_value_idx (default_dict); + inp->init = xmalloc (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 (default_dict); i++) { struct variable *var = dict_get_var (default_dict, i); @@ -105,59 +103,66 @@ cmd_end_input_program (void) size_t j; value_init = var->type == NUMERIC ? INP_NUMERIC : INP_STRING; - value_init |= var->left ? INP_INIT_ONCE : INP_REINIT; + value_init |= var->reinit ? INP_REINIT : INP_INIT_ONCE; for (j = 0; j < var->nv; j++) - inp_init[j + var->fv] = value_init; + inp->init[j + var->fv] = value_init; } - for (i = 0; i < inp_nval; i++) - assert (inp_init[i] != -1); + for (i = 0; i < inp->init_cnt; i++) + assert (inp->init[i] != -1); + inp->case_size = dict_get_case_size (default_dict); + + /* Put inp into vfm_source for later use. */ + vfm_source->aux = inp; + + /* FIXME: we should use create_case_source() here. */ + vfm_source->value_cnt = dict_get_next_value_idx (default_dict); return lex_end_of_command (); } -/* Initializes temp_case. Called before the first case is read. */ +/* Initializes case C. Called before the first case is read. */ static void -init_case (void) +init_case (const struct input_program_pgm *inp, struct ccase *c) { size_t i; - for (i = 0; i < inp_nval; i++) - switch (inp_init[i]) + for (i = 0; i < inp->init_cnt; i++) + switch (inp->init[i]) { case INP_NUMERIC | INP_INIT_ONCE: - temp_case->data[i].f = 0.0; + case_data_rw (c, i)->f = 0.0; break; case INP_NUMERIC | INP_REINIT: - temp_case->data[i].f = SYSMIS; + case_data_rw (c, i)->f = SYSMIS; break; case INP_STRING | INP_INIT_ONCE: case INP_STRING | INP_REINIT: - memset (temp_case->data[i].s, ' ', sizeof temp_case->data[i].s); + memset (case_data_rw (c, i)->s, ' ', sizeof case_data_rw (c, i)->s); break; default: assert (0); } } -/* Clears temp_case. Called between reading successive records. */ +/* Clears case C. Called between reading successive records. */ static void -clear_case (void) +clear_case (const struct input_program_pgm *inp, struct ccase *c) { size_t i; - for (i = 0; i < inp_nval; i++) - switch (inp_init[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: - temp_case->data[i].f = SYSMIS; + case_data_rw (c, i)->f = SYSMIS; break; case INP_STRING | INP_INIT_ONCE: break; case INP_STRING | INP_REINIT: - memset (temp_case->data[i].s, ' ', sizeof temp_case->data[i].s); + memset (case_data_rw (c, i)->s, ' ', sizeof case_data_rw (c, i)->s); break; default: assert (0); @@ -169,64 +174,63 @@ clear_case (void) file. -1 means go on to the next transformation. Otherwise the return value is the index of the transformation to go to next. */ static void -input_program_source_read (write_case_func *write_case, +input_program_source_read (struct case_source *source, + struct ccase *c, + write_case_func *write_case, write_case_data wc_data) { + struct input_program_pgm *inp = source->aux; int i; /* Nonzero if there were any END CASE commands in the set of - transformations. */ + transformations. If so, we don't automatically write out + cases. */ int end_case = 0; - /* We don't automatically write out cases if the user took over - that prerogative. */ + /* FIXME? This is the number of cases sent out of the input + program, not the number of cases written to the procedure. + The difference should only show up in $CASENUM in COMPUTE. + We should check behavior against SPSS. */ + int cases_written = 0; + + assert (inp != NULL); + + /* Figure end_case. */ for (i = 0; i < f_trns; i++) if (t_trns[i]->proc == end_case_trns_proc) end_case = 1; - /* FIXME: This code should not be necessary. It is an ugly - kluge. */ + /* FIXME: This is an ugly kluge. */ for (i = 0; i < f_trns; i++) if (t_trns[i]->proc == repeating_data_trns_proc) repeating_data_set_write_case (t_trns[i], write_case, wc_data); - init_case (); + init_case (inp, c); for (;;) { - /* Index of current transformation. */ - int i; - - /* Return value of last-called transformation. */ - int code; - - debug_printf (("input-program: ")); - /* Perform transformations on `blank' case. */ - for (i = 0; i < f_trns;) + for (i = 0; i < f_trns; ) { -#if DEBUGGING - printf ("/%d", i); - if (t_trns[i]->proc == end_case_trns_proc) - printf ("\n"); -#endif + int code; /* Return value of last-called transformation. */ if (t_trns[i]->proc == end_case_trns_proc) { + cases_written++; if (!write_case (wc_data)) - return; - clear_case (); + goto done; + clear_case (inp, c); i++; continue; } - code = t_trns[i]->proc (t_trns[i], temp_case); + code = t_trns[i]->proc (t_trns[i], c, cases_written + 1); switch (code) { case -1: i++; break; case -2: - return; + goto done; case -3: goto next_case; default: @@ -235,39 +239,42 @@ input_program_source_read (write_case_func *write_case, } } -#if DEBUGGING - if (!end_case) - printf ("\n"); -#endif - /* Write the case if appropriate. */ - if (!end_case) - if (!write_case (wc_data)) - return; + if (!end_case) + { + cases_written++; + if (!write_case (wc_data)) + break; + } /* Blank out the case for the next iteration. */ next_case: - clear_case (); + clear_case (inp, c); } + done: ; } +/* Destroys an INPUT PROGRAM source. */ static void -input_program_source_destroy_source (void) +input_program_source_destroy (struct case_source *source) { + struct input_program_pgm *inp = source->aux; + cancel_transformations (); - free (inp_init); - inp_init = NULL; + + if (inp != NULL) + { + free (inp->init); + free (inp); + } } -struct case_stream input_program_source = +const struct case_source_class input_program_source_class = { + "INPUT PROGRAM", NULL, input_program_source_read, - NULL, - NULL, - input_program_source_destroy_source, - NULL, - "INPUT PROGRAM", + input_program_source_destroy, }; int @@ -275,10 +282,7 @@ cmd_end_case (void) { struct trns_header *t; - lex_match_id ("END"); - lex_match_id ("CASE"); - - if (vfm_source != &input_program_source) + if (!case_source_is_class (vfm_source, &input_program_source_class)) { msg (SE, _("This command may only be executed between INPUT PROGRAM " "and END INPUT PROGRAM.")); @@ -293,10 +297,14 @@ cmd_end_case (void) return lex_end_of_command (); } +/* Should never be called, because this is handled in + input_program_source_read(). */ int -end_case_trns_proc (struct trns_header *t UNUSED, struct ccase * c UNUSED) +end_case_trns_proc (struct trns_header *t UNUSED, struct ccase * c UNUSED, + int case_num UNUSED) { assert (0); + abort (); } /* REREAD transformation. */ @@ -321,8 +329,6 @@ cmd_reread (void) /* Created transformation. */ struct reread_trns *t; - lex_match_id ("REREAD"); - h = default_handle; e = NULL; while (token != '.') @@ -338,21 +344,15 @@ cmd_reread (void) return CMD_FAILURE; } - e = expr_parse (PXP_NUMERIC); + e = expr_parse (EXPR_NUMERIC); if (!e) return CMD_FAILURE; } else if (lex_match_id ("FILE")) { lex_match ('='); - if (token != T_ID) - { - lex_error (_("expecting file handle name")); - expr_free (e); - return CMD_FAILURE; - } - h = fh_get_handle_by_name (tokid); - if (!h) + h = fh_parse_file_handle (); + if (h == NULL) { expr_free (e); return CMD_FAILURE; @@ -376,30 +376,33 @@ cmd_reread (void) return CMD_SUCCESS; } +/* Executes a REREAD transformation. */ static int -reread_trns_proc (struct trns_header * pt, struct ccase * c) +reread_trns_proc (struct trns_header * pt, struct ccase * c, + int case_num) { struct reread_trns *t = (struct reread_trns *) pt; if (t->column == NULL) - dfm_bkwd_record (t->handle, 1); + dfm_reread_record (t->handle, 1); else { union value column; - expr_evaluate (t->column, c, &column); + expr_evaluate (t->column, c, case_num, &column); if (!finite (column.f) || column.f < 1) { msg (SE, _("REREAD: Column numbers must be positive finite " "numbers. Column set to 1.")); - dfm_bkwd_record (t->handle, 1); + dfm_reread_record (t->handle, 1); } else - dfm_bkwd_record (t->handle, column.f); + dfm_reread_record (t->handle, column.f); } return -1; } +/* Frees a REREAD transformation. */ static void reread_trns_free (struct trns_header * t) { @@ -412,10 +415,7 @@ cmd_end_file (void) { struct trns_header *t; - lex_match_id ("END"); - lex_match_id ("FILE"); - - if (vfm_source != &input_program_source) + if (!case_source_is_class (vfm_source, &input_program_source_class)) { msg (SE, _("This command may only be executed between INPUT PROGRAM " "and END INPUT PROGRAM.")); @@ -430,11 +430,10 @@ cmd_end_file (void) return lex_end_of_command (); } +/* Executes an END FILE transformation. */ static int -end_file_trns_proc (struct trns_header * t UNUSED, struct ccase * c UNUSED) +end_file_trns_proc (struct trns_header * t UNUSED, struct ccase * c UNUSED, + int case_num UNUSED) { -#if DEBUGGING - printf ("END FILE\n"); -#endif return -2; }