mirror of
https://github.com/php/php-src.git
synced 2024-09-21 09:57:23 +00:00
4887357269
RFC: https://wiki.php.net/rfc/flexible_heredoc_nowdoc_syntaxes * The ending label no longer has to be followed by a semicolon or newline. Any non-label character is fine. * The ending label may be indented. The indentation will be stripped from all lines in the heredoc/nowdoc string. Lexing of heredoc strings performs a scan-ahead to determine the indentation of the ending label, so that the correct amount of indentation can be removed when calculting the semantic values for use by the parser. This makes the implementation quite a bit more complicated than we would like :/
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/*
|
|
+----------------------------------------------------------------------+
|
|
| Zend Engine |
|
|
+----------------------------------------------------------------------+
|
|
| Copyright (c) 1998-2018 Zend Technologies Ltd. (http://www.zend.com) |
|
|
+----------------------------------------------------------------------+
|
|
| This source file is subject to version 2.00 of the Zend license, |
|
|
| that is bundled with this package in the file LICENSE, and is |
|
|
| available through the world-wide-web at the following url: |
|
|
| http://www.zend.com/license/2_00.txt. |
|
|
| If you did not receive a copy of the Zend license and are unable to |
|
|
| obtain it through the world-wide-web, please send a note to |
|
|
| license@zend.com so we can mail you a copy immediately. |
|
|
+----------------------------------------------------------------------+
|
|
| Authors: Andi Gutmans <andi@zend.com> |
|
|
| Zeev Suraski <zeev@zend.com> |
|
|
+----------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* $Id$ */
|
|
|
|
#include "zend.h"
|
|
#include "zend_ptr_stack.h"
|
|
#ifdef HAVE_STDARG_H
|
|
# include <stdarg.h>
|
|
#endif
|
|
|
|
ZEND_API void zend_ptr_stack_init_ex(zend_ptr_stack *stack, zend_bool persistent)
|
|
{
|
|
stack->top_element = stack->elements = NULL;
|
|
stack->top = stack->max = 0;
|
|
stack->persistent = persistent;
|
|
}
|
|
|
|
ZEND_API void zend_ptr_stack_init(zend_ptr_stack *stack)
|
|
{
|
|
zend_ptr_stack_init_ex(stack, 0);
|
|
}
|
|
|
|
|
|
ZEND_API void zend_ptr_stack_n_push(zend_ptr_stack *stack, int count, ...)
|
|
{
|
|
va_list ptr;
|
|
void *elem;
|
|
|
|
ZEND_PTR_STACK_RESIZE_IF_NEEDED(stack, count)
|
|
|
|
va_start(ptr, count);
|
|
while (count>0) {
|
|
elem = va_arg(ptr, void *);
|
|
stack->top++;
|
|
*(stack->top_element++) = elem;
|
|
count--;
|
|
}
|
|
va_end(ptr);
|
|
}
|
|
|
|
|
|
ZEND_API void zend_ptr_stack_n_pop(zend_ptr_stack *stack, int count, ...)
|
|
{
|
|
va_list ptr;
|
|
void **elem;
|
|
|
|
va_start(ptr, count);
|
|
while (count>0) {
|
|
elem = va_arg(ptr, void **);
|
|
*elem = *(--stack->top_element);
|
|
stack->top--;
|
|
count--;
|
|
}
|
|
va_end(ptr);
|
|
}
|
|
|
|
|
|
|
|
ZEND_API void zend_ptr_stack_destroy(zend_ptr_stack *stack)
|
|
{
|
|
if (stack->elements) {
|
|
pefree(stack->elements, stack->persistent);
|
|
}
|
|
}
|
|
|
|
|
|
ZEND_API void zend_ptr_stack_apply(zend_ptr_stack *stack, void (*func)(void *))
|
|
{
|
|
int i = stack->top;
|
|
|
|
while (--i >= 0) {
|
|
func(stack->elements[i]);
|
|
}
|
|
}
|
|
|
|
ZEND_API void zend_ptr_stack_reverse_apply(zend_ptr_stack *stack, void (*func)(void *))
|
|
{
|
|
int i = 0;
|
|
|
|
while (i < stack->top) {
|
|
func(stack->elements[i++]);
|
|
}
|
|
}
|
|
|
|
|
|
ZEND_API void zend_ptr_stack_clean(zend_ptr_stack *stack, void (*func)(void *), zend_bool free_elements)
|
|
{
|
|
zend_ptr_stack_apply(stack, func);
|
|
if (free_elements) {
|
|
int i = stack->top;
|
|
|
|
while (--i >= 0) {
|
|
pefree(stack->elements[i], stack->persistent);
|
|
}
|
|
}
|
|
stack->top = 0;
|
|
stack->top_element = stack->elements;
|
|
}
|
|
|
|
|
|
ZEND_API int zend_ptr_stack_num_elements(zend_ptr_stack *stack)
|
|
{
|
|
return stack->top;
|
|
}
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
* vim600: sw=4 ts=4 fdm=marker
|
|
* vim<600: sw=4 ts=4
|
|
*/
|