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/*
* 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 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.
*/
/** \file
* \ingroup bke
*/
#include <stdio.h>
#include <string.h>
#include "BLI_dynstr.h"
#include "BLI_listbase.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "DNA_ID.h"
#include "BKE_idprop.h"
#include "BKE_idtype.h"
#include "MEM_guardedalloc.h"
#include "BLI_strict_flags.h"
/* -------------------------------------------------------------------- */
/** \name IDProp Repr
*
* Convert an IDProperty to a string.
*
* Output should be a valid Python literal
* (with minor exceptions - float nan for eg).
* \{ */
struct ReprState {
void (*str_append_fn)(void *user_data, const char *str, uint str_len);
void *user_data;
/* Big enough to format any primitive type. */
char buf[128];
};
static void idp_str_append_escape(struct ReprState *state,
const char *str,
const uint str_len,
bool quote)
{
if (quote) {
state->str_append_fn(state->user_data, "\"", 1);
}
uint i_prev = 0, i = 0;
while (i < str_len) {
const char c = str[i];
if (c == '"') {
if (i_prev != i) {
state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
}
state->str_append_fn(state->user_data, "\\\"", 2);
i_prev = i + 1;
}
else if (c == '\\') {
if (i_prev != i) {
state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
}
state->str_append_fn(state->user_data, "\\\\", 2);
i_prev = i + 1;
}
else if (c < 32) {
if (i_prev != i) {
state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
}
char buf[5];
uint len = (uint)BLI_snprintf_rlen(buf, sizeof(buf), "\\x%02x", c);
BLI_assert(len == 4);
state->str_append_fn(state->user_data, buf, len);
i_prev = i + 1;
}
i++;
}
state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
if (quote) {
state->str_append_fn(state->user_data, "\"", 1);
}
}
static void idp_repr_fn_recursive(struct ReprState *state, const IDProperty *prop)
{
/* Note: 'strlen' will be calculated at compile time for literals. */
#define STR_APPEND_STR(str) state->str_append_fn(state->user_data, str, (uint)strlen(str))
#define STR_APPEND_STR_QUOTE(str) idp_str_append_escape(state, str, (uint)strlen(str), true)
#define STR_APPEND_STR_LEN_QUOTE(str, str_len) idp_str_append_escape(state, str, str_len, true)
#define STR_APPEND_FMT(format, ...) \
state->str_append_fn( \
state->user_data, \
state->buf, \
(uint)BLI_snprintf_rlen(state->buf, sizeof(state->buf), format, __VA_ARGS__))
switch (prop->type) {
case IDP_STRING: {
STR_APPEND_STR_LEN_QUOTE(IDP_String(prop), (uint)MAX2(0, prop->len - 1));
break;
}
case IDP_INT: {
STR_APPEND_FMT("%d", IDP_Int(prop));
break;
}
case IDP_FLOAT: {
STR_APPEND_FMT("%g", (double)IDP_Float(prop));
break;
}
case IDP_DOUBLE: {
STR_APPEND_FMT("%g", IDP_Double(prop));
break;
}
case IDP_ARRAY: {
STR_APPEND_STR("[");
switch (prop->subtype) {
case IDP_INT:
for (const int *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
if (v != prop->data.pointer) {
STR_APPEND_STR(", ");
}
STR_APPEND_FMT("%d", *v);
}
break;
case IDP_FLOAT:
for (const float *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
if (v != prop->data.pointer) {
STR_APPEND_STR(", ");
}
STR_APPEND_FMT("%g", (double)*v);
}
break;
case IDP_DOUBLE:
for (const double *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
if (v != prop->data.pointer) {
STR_APPEND_STR(", ");
}
STR_APPEND_FMT("%g", *v);
}
break;
}
STR_APPEND_STR("]");
break;
}
case IDP_IDPARRAY: {
STR_APPEND_STR("[");
for (const IDProperty *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
if (v != prop->data.pointer) {
STR_APPEND_STR(", ");
}
idp_repr_fn_recursive(state, v);
}
STR_APPEND_STR("]");
break;
}
case IDP_GROUP: {
STR_APPEND_STR("{");
LISTBASE_FOREACH (const IDProperty *, subprop, &prop->data.group) {
if (subprop != prop->data.group.first) {
STR_APPEND_STR(", ");
}
STR_APPEND_STR_QUOTE(subprop->name);
STR_APPEND_STR(": ");
idp_repr_fn_recursive(state, subprop);
}
STR_APPEND_STR("}");
break;
}
case IDP_ID: {
const ID *id = prop->data.pointer;
if (id != NULL) {
STR_APPEND_STR("bpy.data.");
STR_APPEND_STR(BKE_idtype_idcode_to_name_plural(GS(id->name)));
STR_APPEND_STR("[");
STR_APPEND_STR_QUOTE(id->name + 2);
STR_APPEND_STR("]");
}
else {
STR_APPEND_STR("None");
}
break;
}
default: {
BLI_assert(0);
break;
}
}
#undef STR_APPEND_STR
#undef STR_APPEND_STR_QUOTE
#undef STR_APPEND_STR_LEN_QUOTE
#undef STR_APPEND_FMT
}
void IDP_repr_fn(const IDProperty *prop,
void (*str_append_fn)(void *user_data, const char *str, uint str_len),
void *user_data)
{
struct ReprState state = {
.str_append_fn = str_append_fn,
.user_data = user_data,
};
idp_repr_fn_recursive(&state, prop);
}
static void repr_str(void *user_data, const char *str, uint len)
{
BLI_dynstr_nappend(user_data, str, (int)len);
}
char *IDP_reprN(const IDProperty *prop, uint *r_len)
{
DynStr *ds = BLI_dynstr_new();
IDP_repr_fn(prop, repr_str, ds);
char *cstring = BLI_dynstr_get_cstring(ds);
if (r_len != NULL) {
*r_len = (uint)BLI_dynstr_get_len(ds);
}
BLI_dynstr_free(ds);
return cstring;
}
void IDP_print(const IDProperty *prop)
{
char *repr = IDP_reprN(prop, NULL);
printf("IDProperty(%p): ", prop);
puts(repr);
MEM_freeN(repr);
}
/** \} */
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