243 lines
6.7 KiB
C
243 lines
6.7 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/** \file
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* \ingroup bke
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*/
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#include <stdio.h>
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#include <string.h>
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#include "BLI_dynstr.h"
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#include "BLI_string.h"
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#include "BLI_utildefines.h"
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#include "BKE_idcode.h"
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#include "BKE_idprop.h"
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#include "MEM_guardedalloc.h"
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#include "BLI_strict_flags.h"
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/* -------------------------------------------------------------------- */
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/** \name IDProp Repr
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*
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* Convert an IDProperty to a string.
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*
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* Output should be a valid Python literal
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* (with minor exceptions - float nan for eg).
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* \{ */
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struct ReprState {
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void (*str_append_fn)(void *user_data, const char *str, uint str_len);
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void *user_data;
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/* Big enough to format any primitive type. */
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char buf[128];
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};
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static void idp_str_append_escape(struct ReprState *state,
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const char *str,
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const uint str_len,
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bool quote)
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{
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if (quote) {
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state->str_append_fn(state->user_data, "\"", 1);
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}
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uint i_prev = 0, i = 0;
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while (i < str_len) {
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const char c = str[i];
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if (c == '"') {
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if (i_prev != i) {
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state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
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}
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state->str_append_fn(state->user_data, "\\\"", 2);
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i_prev = i + 1;
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}
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else if (c == '\\') {
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if (i_prev != i) {
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state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
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}
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state->str_append_fn(state->user_data, "\\\\", 2);
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i_prev = i + 1;
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}
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else if (c < 32) {
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if (i_prev != i) {
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state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
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}
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char buf[5];
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uint len = (uint)BLI_snprintf_rlen(buf, sizeof(buf), "\\x%02x", c);
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BLI_assert(len == 4);
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state->str_append_fn(state->user_data, buf, len);
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i_prev = i + 1;
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}
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i++;
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}
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state->str_append_fn(state->user_data, str + i_prev, i - i_prev);
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if (quote) {
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state->str_append_fn(state->user_data, "\"", 1);
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}
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}
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static void idp_repr_fn_recursive(struct ReprState *state, const IDProperty *prop)
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{
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/* Note: 'strlen' will be calculated at compile time for literals. */
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#define STR_APPEND_STR(str) state->str_append_fn(state->user_data, str, (uint)strlen(str))
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#define STR_APPEND_STR_QUOTE(str) idp_str_append_escape(state, str, (uint)strlen(str), true)
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#define STR_APPEND_STR_LEN_QUOTE(str, str_len) idp_str_append_escape(state, str, str_len, true)
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#define STR_APPEND_FMT(format, ...) \
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state->str_append_fn( \
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state->user_data, \
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state->buf, \
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(uint)BLI_snprintf_rlen(state->buf, sizeof(state->buf), format, __VA_ARGS__))
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switch (prop->type) {
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case IDP_STRING: {
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STR_APPEND_STR_LEN_QUOTE(IDP_String(prop), (uint)MAX2(0, prop->len - 1));
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break;
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}
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case IDP_INT: {
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STR_APPEND_FMT("%d", IDP_Int(prop));
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break;
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}
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case IDP_FLOAT: {
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STR_APPEND_FMT("%g", (double)IDP_Float(prop));
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break;
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}
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case IDP_DOUBLE: {
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STR_APPEND_FMT("%g", IDP_Double(prop));
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break;
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}
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case IDP_ARRAY: {
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STR_APPEND_STR("[");
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switch (prop->subtype) {
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case IDP_INT:
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for (const int *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
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if (v != prop->data.pointer) {
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STR_APPEND_STR(", ");
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}
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STR_APPEND_FMT("%d", *v);
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}
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break;
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case IDP_FLOAT:
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for (const float *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
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if (v != prop->data.pointer) {
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STR_APPEND_STR(", ");
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}
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STR_APPEND_FMT("%g", (double)*v);
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}
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break;
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case IDP_DOUBLE:
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for (const double *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
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if (v != prop->data.pointer) {
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STR_APPEND_STR(", ");
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}
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STR_APPEND_FMT("%g", *v);
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}
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break;
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}
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STR_APPEND_STR("]");
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break;
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}
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case IDP_IDPARRAY: {
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STR_APPEND_STR("[");
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for (const IDProperty *v = prop->data.pointer, *v_end = v + prop->len; v != v_end; v++) {
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if (v != prop->data.pointer) {
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STR_APPEND_STR(", ");
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}
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idp_repr_fn_recursive(state, v);
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}
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STR_APPEND_STR("]");
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break;
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}
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case IDP_GROUP: {
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STR_APPEND_STR("{");
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for (const IDProperty *subprop = prop->data.group.first; subprop; subprop = subprop->next) {
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if (subprop != prop->data.group.first) {
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STR_APPEND_STR(", ");
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}
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STR_APPEND_STR_QUOTE(subprop->name);
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STR_APPEND_STR(": ");
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idp_repr_fn_recursive(state, subprop);
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}
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STR_APPEND_STR("}");
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break;
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}
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case IDP_ID: {
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const ID *id = prop->data.pointer;
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if (id != NULL) {
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STR_APPEND_STR("bpy.data.");
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STR_APPEND_STR(BKE_idcode_to_name_plural(GS(id->name)));
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STR_APPEND_STR("[");
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STR_APPEND_STR_QUOTE(id->name + 2);
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STR_APPEND_STR("]");
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}
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else {
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STR_APPEND_STR("None");
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}
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break;
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}
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default: {
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BLI_assert(0);
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break;
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}
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}
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#undef STR_APPEND_STR
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#undef STR_APPEND_STR_QUOTE
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#undef STR_APPEND_STR_LEN_QUOTE
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#undef STR_APPEND_FMT
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}
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void IDP_repr_fn(const IDProperty *prop,
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void (*str_append_fn)(void *user_data, const char *str, uint str_len),
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void *user_data)
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{
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struct ReprState state = {
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.str_append_fn = str_append_fn,
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.user_data = user_data,
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};
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idp_repr_fn_recursive(&state, prop);
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}
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static void repr_str(void *user_data, const char *str, uint len)
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{
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BLI_dynstr_nappend(user_data, str, (int)len);
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}
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char *IDP_reprN(const IDProperty *prop, uint *r_len)
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{
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DynStr *ds = BLI_dynstr_new();
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IDP_repr_fn(prop, repr_str, ds);
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char *cstring = BLI_dynstr_get_cstring(ds);
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if (r_len != NULL) {
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*r_len = (uint)BLI_dynstr_get_len(ds);
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}
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BLI_dynstr_free(ds);
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return cstring;
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}
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void IDP_print(const IDProperty *prop)
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{
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char *repr = IDP_reprN(prop, NULL);
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printf("IDProperty(%p): ", prop);
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puts(repr);
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MEM_freeN(repr);
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}
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/** \} */
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