mirror of
https://github.com/lexborisov/Modest
synced 2024-11-25 07:09:35 +03:00
101 lines
2.8 KiB
C
101 lines
2.8 KiB
C
/*
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Copyright (C) 2016-2017 Alexander Borisov
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Author: lex.borisov@gmail.com (Alexander Borisov)
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*/
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#include "mycss/stack.h"
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mycss_stack_t * mycss_stack_create(void)
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{
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return mycore_calloc(1, sizeof(mycss_stack_t));
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}
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mystatus_t mycss_stack_init(mycss_stack_t *stack, size_t size)
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{
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stack->entries_size = size;
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stack->entries_length = 0;
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stack->entries = (mycss_stack_entry_t*)mycore_calloc(stack->entries_size, sizeof(mycss_stack_entry_t));
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if(stack->entries == NULL)
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return MyCSS_STATUS_ERROR_MEMORY_ALLOCATION;
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return MyCSS_STATUS_OK;
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}
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void mycss_stack_clean(mycss_stack_t *stack)
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{
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stack->entries_length = 0;
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}
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mycss_stack_t * mycss_stack_destroy(mycss_stack_t *stack, bool self_destroy)
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{
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if(stack == NULL)
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return NULL;
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if(stack->entries) {
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mycore_free(stack->entries);
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stack->entries = NULL;
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}
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if(self_destroy) {
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mycore_free(stack);
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return NULL;
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}
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return stack;
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}
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mystatus_t mycss_stack_push(mycss_stack_t *stack, void* value, mycss_parser_token_f parser)
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{
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if(stack->entries_length >= stack->entries_size) {
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size_t new_size = stack->entries_length << 1;
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mycss_stack_entry_t *entries = (mycss_stack_entry_t*)mycore_realloc(stack->entries,
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sizeof(mycss_stack_entry_t) * new_size);
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if(entries) {
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stack->entries = entries;
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stack->entries_size = new_size;
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}
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else
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return MyCSS_STATUS_ERROR_MEMORY_ALLOCATION;
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}
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stack->entries[ stack->entries_length ].value = value;
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stack->entries[ stack->entries_length ].parser = parser;
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stack->entries_length++;
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return MyCSS_STATUS_OK;
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}
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mycss_stack_entry_t * mycss_stack_pop(mycss_stack_t *stack)
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{
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stack->entries_length--;
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return &stack->entries[ stack->entries_length ];
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}
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mycss_stack_entry_t * mycss_stack_current(mycss_stack_t *stack)
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{
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if(stack->entries_length == 0)
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return NULL;
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return &stack->entries[ (stack->entries_length - 1) ];
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}
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