mirror of https://github.com/ecmwf/eccodes.git
241 lines
7.2 KiB
C++
241 lines
7.2 KiB
C++
/*
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* (C) Copyright 2005- ECMWF.
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*
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* This software is licensed under the terms of the Apache Licence Version 2.0
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* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
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*
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* In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
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* virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
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*/
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#include "grib_api_internal.h"
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/*
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This is used by make_class.pl
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START_CLASS_DEF
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CLASS = action
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SUPER = action_class_section
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IMPLEMENTS = destroy
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IMPLEMENTS = execute
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MEMBERS = grib_arguments* args
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MEMBERS = grib_case *Case
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MEMBERS = grib_action *Default
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END_CLASS_DEF
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*/
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/* START_CLASS_IMP */
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/*
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Don't edit anything between START_CLASS_IMP and END_CLASS_IMP
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Instead edit values between START_CLASS_DEF and END_CLASS_DEF
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or edit "action.class" and rerun ./make_class.pl
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*/
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static void init_class (grib_action_class*);
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static void destroy (grib_context*,grib_action*);
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static int execute(grib_action* a,grib_handle* h);
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typedef struct grib_action_switch {
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grib_action act;
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/* Members defined in section */
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/* Members defined in switch */
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grib_arguments* args;
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grib_case *Case;
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grib_action *Default;
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} grib_action_switch;
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extern grib_action_class* grib_action_class_section;
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static grib_action_class _grib_action_class_switch = {
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&grib_action_class_section, /* super */
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"action_class_switch", /* name */
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sizeof(grib_action_switch), /* size */
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0, /* inited */
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&init_class, /* init_class */
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0, /* init */
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&destroy, /* destroy */
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0, /* dump */
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0, /* xref */
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0, /* create_accessor*/
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0, /* notify_change */
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0, /* reparse */
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&execute, /* execute */
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};
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grib_action_class* grib_action_class_switch = &_grib_action_class_switch;
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static void init_class(grib_action_class* c)
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{
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c->dump = (*(c->super))->dump;
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c->xref = (*(c->super))->xref;
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c->create_accessor = (*(c->super))->create_accessor;
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c->notify_change = (*(c->super))->notify_change;
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c->reparse = (*(c->super))->reparse;
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}
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/* END_CLASS_IMP */
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grib_action* grib_action_create_switch(grib_context* context,
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grib_arguments* args,
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grib_case* Case,
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grib_action* Default)
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{
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char name[1024];
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const size_t nameLen = sizeof(name);
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grib_action_switch* a;
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grib_action_class* c = grib_action_class_switch;
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grib_action* act = (grib_action*)grib_context_malloc_clear_persistent(context, c->size);
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act->op = grib_context_strdup_persistent(context, "section");
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act->cclass = c;
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a = (grib_action_switch*)act;
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act->context = context;
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a->args = args;
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a->Case = Case;
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a->Default = Default;
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snprintf(name, nameLen, "_switch%p", (void*)a);
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act->name = grib_context_strdup_persistent(context, name);
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return act;
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}
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grib_case* grib_case_new(grib_context* c, grib_arguments* values, grib_action* action)
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{
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grib_case* Case = (grib_case*)grib_context_malloc_clear_persistent(c, sizeof(grib_case));
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Case->values = values;
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Case->action = action;
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return Case;
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}
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static int execute(grib_action* act, grib_handle* h)
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{
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grib_action_switch* a = (grib_action_switch*)act;
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grib_case* c = a->Case;
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grib_action* next = a->Default;
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grib_arguments* args = a->args;
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grib_arguments* values;
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grib_expression* e; // The expression in the switch statement
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grib_expression* value; // The value in each 'case'
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int ret = 0;
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long lres = 0;
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double dres = 0;
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long lval = 0;
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double dval = 0;
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int type = 0;
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int ok = 0;
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const char* cval;
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const char* cres;
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char buf[80];
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char tmp[80];
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size_t len = sizeof(buf);
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size_t size = sizeof(tmp);
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int err = 0;
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Assert(args);
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while (c) {
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e = args->expression;
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values = c->values;
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value = values->expression;
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ok = 0;
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while (e && value) {
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if (!strcmp(value->cclass->name, "true"))
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ok = 1;
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else {
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type = grib_expression_native_type(h, value);
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switch (type) {
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case GRIB_TYPE_LONG:
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ok = (grib_expression_evaluate_long(h, value, &lres) == GRIB_SUCCESS) &&
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(grib_expression_evaluate_long(h, e, &lval) == GRIB_SUCCESS) &&
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(lval == lres);
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break;
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case GRIB_TYPE_DOUBLE:
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ok = (grib_expression_evaluate_double(h, value, &dres) == GRIB_SUCCESS) &&
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(grib_expression_evaluate_double(h, e, &dval) == GRIB_SUCCESS) &&
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(dval == dres);
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break;
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case GRIB_TYPE_STRING:
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len = sizeof(buf);
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size = sizeof(tmp);
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ok = ((cres = grib_expression_evaluate_string(h, e, buf, &len, &err)) != NULL) &&
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(err == 0) &&
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((cval = grib_expression_evaluate_string(h, value, tmp, &size, &err)) != NULL) &&
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(err == 0) &&
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((strcmp(buf, cval) == 0) || (strcmp(cval, "*") == 0));
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break;
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default:
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/* TODO: */
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break;
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}
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}
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if (!ok)
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break;
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args = args->next;
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if (args)
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e = args->expression;
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else
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e = NULL;
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values = values->next;
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if (values)
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value = values->expression;
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else
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value = NULL;
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}
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if (ok) {
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next = c->action;
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break;
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}
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c = c->next;
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}
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if (!next)
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return GRIB_SWITCH_NO_MATCH;
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while (next) {
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ret = grib_action_execute(next, h);
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if (ret != GRIB_SUCCESS)
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return ret;
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next = next->next;
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}
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return GRIB_SUCCESS;
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}
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static void destroy(grib_context* context, grib_action* act)
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{
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grib_action_switch* a = (grib_action_switch*)act;
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grib_case* t = a->Case;
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while (t) {
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grib_case* nt = t->next;
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grib_action_delete(context, t->action);
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grib_arguments_free(context, t->values);
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grib_context_free(context, t);
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t = nt;
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}
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grib_action_delete(context, a->Default);
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grib_context_free_persistent(context, act->name);
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grib_context_free_persistent(context, act->op);
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}
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