text.c

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/*
   +----------------------------------------------------------------------+
   | Copyright (c) The PHP Group                                          |
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Christian Stocker <chregu@php.net>                          |
   |          Rob Richards <rrichards@php.net>                            |
   +----------------------------------------------------------------------+
*/
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include "php.h"
#if defined(HAVE_LIBXML) && defined(HAVE_DOM)
#include "php_dom.h"
#include "dom_properties.h"
 
/*
* class DOMText extends DOMCharacterData
*
* URL: https://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#ID-1312295772
* Since:
*/
 
/* {{{ */
PHP_METHOD(DOMText, __construct)
{
    xmlNodePtr nodep = NULL, oldnode = NULL;
    dom_object *intern;
    char *value = NULL;
    size_t value_len;
 
    if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s", &value, &value_len) == FAILURE) {
        RETURN_THROWS();
    }
 
    nodep = xmlNewText(BAD_CAST value);
 
    if (!nodep) {
        php_dom_throw_error(INVALID_STATE_ERR, true);
        RETURN_THROWS();
    }
 
    intern = Z_DOMOBJ_P(ZEND_THIS);
    oldnode = dom_object_get_node(intern);
    if (oldnode != NULL) {
        php_libxml_node_decrement_resource((php_libxml_node_object *)intern);
    }
    php_libxml_increment_node_ptr((php_libxml_node_object *)intern, nodep, (void *)intern);
}
/* }}} end DOMText::__construct */
 
/* {{{ wholeText    string
readonly=yes
URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-Text3-wholeText
Since: DOM Level 3
*/
zend_result dom_text_whole_text_read(dom_object *obj, zval *retval)
{
    DOM_PROP_NODE(xmlNodePtr, node, obj);
 
    smart_str str = {0};
 
    /* Find starting text node */
    while (node->prev && ((node->prev->type == XML_TEXT_NODE) || (node->prev->type == XML_CDATA_SECTION_NODE))) {
        node = node->prev;
    }
 
    /* concatenate all adjacent text and cdata nodes */
    while (node && ((node->type == XML_TEXT_NODE) || (node->type == XML_CDATA_SECTION_NODE))) {
        if (node->content) {
            smart_str_appends(&str, (const char *) node->content);
        }
        node = node->next;
    }
 
    ZVAL_STR(retval, smart_str_extract(&str));
 
    return SUCCESS;
}
 
/* }}} */
 
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-ID-38853C1D
Modern spec URL: https://dom.spec.whatwg.org/#dom-text-splittext
Since:
*/
PHP_METHOD(DOMText, splitText)
{
    zval       *id;
    xmlChar    *first;
    xmlChar    *second;
    xmlNodePtr  node;
    xmlNodePtr  nnode;
    zend_long        offset;
    int         length;
    dom_object    *intern;
 
    id = ZEND_THIS;
    if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &offset) == FAILURE) {
        RETURN_THROWS();
    }
    DOM_GET_OBJ(node, id, xmlNodePtr, intern);
 
    if (offset < 0) {
        zend_argument_value_error(1, "must be greater than or equal to 0");
        RETURN_THROWS();
    }
 
    const xmlChar *cur = php_dom_get_content_or_empty(node);
    length = xmlUTF8Strlen(cur);
 
    if (ZEND_LONG_INT_OVFL(offset) || (int)offset > length) {
        if (php_dom_follow_spec_intern(intern)) {
            php_dom_throw_error(INDEX_SIZE_ERR, /* strict */ true);
        }
        RETURN_FALSE;
    }
 
    first = xmlUTF8Strndup(cur, (int)offset);
    second = xmlUTF8Strsub(cur, (int)offset, (int)(length - offset));
 
    xmlNodeSetContent(node, first);
    nnode = xmlNewDocText(node->doc, second);
 
    xmlFree(first);
    xmlFree(second);
 
    if (nnode == NULL) {
        php_dom_throw_error(INVALID_STATE_ERR, /* strict */ true);
        RETURN_THROWS();
    }
 
    if (node->parent != NULL) {
        nnode->type = XML_ELEMENT_NODE;
        xmlAddNextSibling(node, nnode);
        nnode->type = XML_TEXT_NODE;
    }
 
    php_dom_create_object(nnode, return_value, intern);
}
/* }}} end dom_text_split_text */
 
/* {{{ URL: http://www.w3.org/TR/2003/WD-DOM-Level-3-Core-20030226/DOM3-Core.html#core-Text3-isWhitespaceInElementContent
Since: DOM Level 3
*/
PHP_METHOD(DOMText, isWhitespaceInElementContent)
{
    zval       *id;
    xmlNodePtr  node;
    dom_object    *intern;
 
    id = ZEND_THIS;
    if (zend_parse_parameters_none() == FAILURE) {
        RETURN_THROWS();
    }
    DOM_GET_OBJ(node, id, xmlNodePtr, intern);
 
    if (xmlIsBlankNode(node)) {
        RETURN_TRUE;
    } else {
        RETURN_FALSE;
    }
}
/* }}} end dom_text_is_whitespace_in_element_content */
 
#endif