WebSVN – f9daq – Blame – //cvi/instr/DRS/mxml.c

Rev	Author	Line No.	Line
195	f9daq	1	/********************************************************************\
		2
		3	Name: mxml.c
		4	Created by: Stefan Ritt
		5	Copyright 2000 + Stefan Ritt
		6
		7	Contents: Midas XML Library
		8
		9	This is a simple implementation of XML functions for writing and
		10	reading XML files. For writing an XML file from scratch, following
		11	functions can be used:
		12
		13	writer = mxml_open_file(file_name);
		14	mxml_start_element(writer, name);
		15	mxml_write_attribute(writer, name, value);
		16	mxml_write_value(writer, value);
		17	mxml_end_element(writer);
		18	...
		19	mxml_close_file(writer);
		20
		21	To read an XML file, the function
		22
		23	tree = mxml_parse_file(file_name, error, sizeof(error));
		24
		25	is used. It parses the complete XML file and stores it in a
		26	hierarchical tree in memory. Nodes in that tree can be searched
		27	for with
		28
		29	mxml_find_node(tree, xml_path);
		30
		31	or
		32
		33	mxml_find_nodes(tree, xml_path, &nodelist);
		34
		35	which support a subset of the XPath specification. Another set of
		36	functions is availabe to retrieve attributes and values from nodes
		37	in the tree and for manipulating nodes, like replacing, adding and
		38	deleting nodes.
		39
		40
		41	This file is part of MIDAS XML Library.
		42
		43	MIDAS XML Library is free software: you can redistribute it and/or modify
		44	it under the terms of the GNU General Public License as published by
		45	the Free Software Foundation, either version 3 of the License, or
		46	(at your option) any later version.
		47
		48	MIDAS XML Library is distributed in the hope that it will be useful,
		49	but WITHOUT ANY WARRANTY; without even the implied warranty of
		50	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		51	GNU General Public License for more details.
		52
		53	You should have received a copy of the GNU General Public License
		54	along with MIDAS XML Library. If not, see <http://www.gnu.org/licenses/>.
		55
		56	\********************************************************************/
		57
		58	#include <stdio.h>
		59	#include <fcntl.h>
		60	#include <string.h>
		61	#include <assert.h>
		62
		63	#ifdef _MSC_VER
		64
		65	#include <windows.h>
		66	#include <io.h>
		67	#include <time.h>
		68
		69	#pragma warning( disable: 4996) /* disable "deprecated" warning */
		70
		71	#else
		72
		73	#define TRUE 1
		74	#define FALSE 0
		75
		76	#ifndef O_TEXT
		77	#define O_TEXT 0
		78	#define O_BINARY 0
		79	#endif
		80
		81	#include <stdlib.h>
		82	#include <unistd.h>
		83	#include <ctype.h>
		84	#include <stdarg.h>
		85	#include <errno.h>
		86	#ifndef OS_VXWORKS
		87	#include <sys/time.h>
		88	#endif
		89	#include <time.h>
		90
		91	#endif
		92
		93	#include "mxml.h"
		94	#ifndef HAVE_STRLCPY
		95	#include "strlcpy.h"
		96	#endif
		97
		98	#define XML_INDENT " "
		99
		100	#if defined(__GNUC__) && !defined(__MAKECINT__)
		101	# define MXML_GNUC_PRINTF( format_idx, arg_idx ) \
		102	__attribute__((format (printf, format_idx, arg_idx)))
		103	# define MXML_GNUC_SCANF( format_idx, arg_idx ) \
		104	__attribute__((format (scanf, format_idx, arg_idx)))
		105	# define MXML_GNUC_FORMAT( arg_idx ) \
		106	__attribute__((format_arg (arg_idx)))
		107	#else
		108	# define MXML_GNUC_PRINTF( format_idx, arg_idx )
		109	# define MXML_GNUC_SCANF( format_idx, arg_idx )
		110	# define MXML_GNUC_FORMAT( arg_idx )
		111	#endif
		112
		113	static int mxml_suppress_date_flag = 0; /* suppress writing date at the top of file. */
		114
		115	/* local prototypes */
		116	static PMXML_NODE read_error(PMXML_NODE root, const char file_name, int line_number, char error, int error_size, int error_line, const char format, ...) MXML_GNUC_PRINTF(7, 8);
		117	static void mxml_encode(char *src, int size, int translate);
		118	static void mxml_decode(char *str);
		119	static int mxml_write_subtree(MXML_WRITER *writer, PMXML_NODE tree, int indent);
		120	static int mxml_write_line(MXML_WRITER writer, const char line);
		121	static int mxml_start_element1(MXML_WRITER writer, const char name, int indent);
		122	static int mxml_add_resultnode(PMXML_NODE node, const char xml_path, PMXML_NODE nodelist, int found);
		123	static int mxml_find_nodes1(PMXML_NODE tree, const char xml_path, PMXML_NODE nodelist, int found);
		124	static void *mxml_malloc(size_t size);
		125	static void mxml_realloc(void p, size_t size);
		126	static void mxml_free(void *p);
		127	static void mxml_deallocate(void);
		128
		129	/------------------------------------------------------------------/
		130
		131	static char *_encode_buffer = NULL;
		132	static char *_data_enc = NULL;
		133
		134	/------------------------------------------------------------------/
		135
		136	void *mxml_malloc(size_t size)
		137	{
		138	return malloc(size);
		139	}
		140
		141	/------------------------------------------------------------------/
		142
		143	void mxml_realloc(void p, size_t size)
		144	{
		145	return realloc(p, size);
		146	}
		147
		148	/------------------------------------------------------------------/
		149
		150	void mxml_free(void *p)
		151	{
		152	free(p);
		153	}
		154
		155	/------------------------------------------------------------------/
		156
		157	void mxml_deallocate(void)
		158	{
		159	if (_encode_buffer != NULL) {
		160	mxml_free(_encode_buffer);
		161	_encode_buffer = NULL;
		162	}
		163	if (_data_enc != NULL) {
		164	mxml_free(_data_enc);
		165	_data_enc = NULL;
		166	}
		167	}
		168
		169	/------------------------------------------------------------------/
		170
		171	int mxml_write_line(MXML_WRITER writer, const char line)
		172	{
		173	int len;
		174
		175	len = (int)strlen(line);
		176
		177	if (writer->buffer) {
		178	if (writer->buffer_len + len >= writer->buffer_size) {
		179	writer->buffer_size += 10000;
		180	writer->buffer = (char *)mxml_realloc(writer->buffer, writer->buffer_size);
		181	}
		182	strcpy(writer->buffer + writer->buffer_len, line);
		183	writer->buffer_len += len;
		184	return len;
		185	} else {
		186	return (int)write(writer->fh, line, len);
		187	}
		188
		189	return 0;
		190	}
		191
		192	/------------------------------------------------------------------/
		193
		194	/**
		195	* open a memory buffer and write XML header
		196	*/
		197	MXML_WRITER *mxml_open_buffer(void)
		198	{
		199	char str[256], line[1000];
		200	time_t now;
		201	MXML_WRITER *writer;
		202
		203	writer = (MXML_WRITER *)mxml_malloc(sizeof(MXML_WRITER));
		204	memset(writer, 0, sizeof(MXML_WRITER));
		205	writer->translate = 1;
		206
		207	writer->buffer_size = 10000;
		208	writer->buffer = (char *)mxml_malloc(10000);
		209	writer->buffer[0] = 0;
		210	writer->buffer_len = 0;
		211
		212	/* write XML header */
		213	strcpy(line, "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
		214	mxml_write_line(writer, line);
		215	time(&now);
		216	strcpy(str, ctime(&now));
		217	str[24] = 0;
		218	sprintf(line, "<!-- created by MXML on %s -->\n", str);
		219	if (mxml_suppress_date_flag == 0)
		220	mxml_write_line(writer, line);
		221
		222	/* initialize stack */
		223	writer->level = 0;
		224	writer->element_is_open = 0;
		225
		226	return writer;
		227	}
		228
		229	/------------------------------------------------------------------/
		230
		231	/**
		232	* suppress writing date at the top of file.
		233	*/
		234	void mxml_suppress_date(int suppress)
		235	{
		236	mxml_suppress_date_flag = suppress;
		237	}
		238
		239	/------------------------------------------------------------------/
		240
		241	/**
		242	* open a file and write XML header
		243	*/
		244	MXML_WRITER mxml_open_file(const char file_name)
		245	{
		246	char str[256], line[1000];
		247	time_t now;
		248	MXML_WRITER *writer;
		249
		250	writer = (MXML_WRITER *)mxml_malloc(sizeof(MXML_WRITER));
		251	memset(writer, 0, sizeof(MXML_WRITER));
		252	writer->translate = 1;
		253
		254	writer->fh = open(file_name, O_RDWR \| O_CREAT \| O_TRUNC \| O_TEXT, 0644);
		255
		256	if (writer->fh == -1) {
		257	sprintf(line, "Unable to open file \"%s\": ", file_name);
		258	perror(line);
		259	mxml_free(writer);
		260	return NULL;
		261	}
		262
		263	/* write XML header */
		264	strcpy(line, "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n");
		265	mxml_write_line(writer, line);
		266	time(&now);
		267	strcpy(str, ctime(&now));
		268	str[24] = 0;
		269	sprintf(line, "<!-- created by MXML on %s -->\n", str);
		270	if (mxml_suppress_date_flag == 0)
		271	mxml_write_line(writer, line);
		272
		273	/* initialize stack */
		274	writer->level = 0;
		275	writer->element_is_open = 0;
		276
		277	return writer;
		278	}
		279
		280	/------------------------------------------------------------------/
		281
		282	/**
		283	* convert '<' '>' '&' '"' ''' into &xx;
		284	*/
		285	void mxml_encode(char *src, int size, int translate)
		286	{
		287	char ps, pd;
		288	static int buffer_size = 1000;
		289
		290	assert(size);
		291
		292	if (_encode_buffer == NULL) {
		293	_encode_buffer = (char *) mxml_malloc(buffer_size);
		294	atexit(mxml_deallocate);
		295	}
		296
		297	if (size > buffer_size) {
		298	_encode_buffer = (char ) mxml_realloc(_encode_buffer, size2);
		299	buffer_size = size;
		300	}
		301
		302	pd = _encode_buffer;
		303	for (ps = src ; *ps && (size_t)pd - (size_t)_encode_buffer < (size_t)(size-10) ; ps++) {
		304
		305	if (translate) { /* tranlate "<", ">", "&", """, "'" */
		306	switch (*ps) {
		307	case '<':
		308	strcpy(pd, "<");
		309	pd += 4;
		310	break;
		311	case '>':
		312	strcpy(pd, ">");
		313	pd += 4;
		314	break;
		315	case '&':
		316	strcpy(pd, "&");
		317	pd += 5;
		318	break;
		319	case '\"':
		320	strcpy(pd, """);
		321	pd += 6;
		322	break;
		323	case '\'':
		324	strcpy(pd, "'");
		325	pd += 6;
		326	break;
		327	default:
		328	pd++ = ps;
		329	}
		330	} else {
		331	switch (ps) { / translate only illegal XML characters "<" and "&" */
		332	case '<':
		333	strcpy(pd, "<");
		334	pd += 4;
		335	break;
		336	case '&':
		337	strcpy(pd, "&");
		338	pd += 5;
		339	break;
		340	default:
		341	pd++ = ps;
		342	}
		343	}
		344	}
		345	*pd = 0;
		346
		347	strlcpy(src, _encode_buffer, size);
		348	}
		349
		350	/------------------------------------------------------------------/
		351
		352	/**
		353	* reverse of mxml_encode, strip leading or trailing '"'
		354	*/
		355	void mxml_decode(char *str)
		356	{
		357	char *p;
		358
		359	p = str;
		360	while ((p = strchr(p, '&')) != NULL) {
		361	if (strncmp(p, "<", 4) == 0) {
		362	*(p++) = '<';
		363	memmove(p, p+3, strlen(p+3) + 1);
		364	}
		365	else if (strncmp(p, ">", 4) == 0) {
		366	*(p++) = '>';
		367	memmove(p, p+3, strlen(p+3) + 1);
		368	}
		369	else if (strncmp(p, "&", 5) == 0) {
		370	*(p++) = '&';
		371	memmove(p, p+4, strlen(p+4) + 1);
		372	}
		373	else if (strncmp(p, """, 6) == 0) {
		374	*(p++) = '\"';
		375	memmove(p, p+5, strlen(p+5) + 1);
		376	}
		377	else if (strncmp(p, "'", 6) == 0) {
		378	*(p++) = '\'';
		379	memmove(p, p+5, strlen(p+5) + 1);
		380	}
		381	else {
		382	p++; // skip unknown entity
		383	}
		384	}
		385	/* if (str[0] == '\"' && str[strlen(str)-1] == '\"') {
		386	memmove(str, str+1, strlen(str+1) + 1);
		387	str[strlen(str)-1] = 0;
		388	}*/
		389	}
		390
		391	/------------------------------------------------------------------/
		392
		393	/**
		394	* set translation of <,>,",',&, on/off in writer
		395	*/
		396	int mxml_set_translate(MXML_WRITER *writer, int flag)
		397	{
		398	int old_flag;
		399
		400	old_flag = writer->translate;
		401	writer->translate = flag;
		402	return old_flag;
		403	}
		404	/------------------------------------------------------------------/
		405
		406	/**
		407	* start a new XML element, must be followed by mxml_end_elemnt
		408	*/
		409	int mxml_start_element1(MXML_WRITER writer, const char name, int indent)
		410	{
		411	int i;
		412	char line[1000], name_enc[1000];
		413
		414	if (writer->element_is_open) {
		415	mxml_write_line(writer, ">\n");
		416	writer->element_is_open = FALSE;
		417	}
		418
		419	line[0] = 0;
		420	if (indent)
		421	for (i=0 ; i<writer->level ; i++)
		422	strlcat(line, XML_INDENT, sizeof(line));
		423	strlcat(line, "<", sizeof(line));
		424	strlcpy(name_enc, name, sizeof(name_enc));
		425	mxml_encode(name_enc, sizeof(name_enc), writer->translate);
		426	strlcat(line, name_enc, sizeof(line));
		427
		428	/* put element on stack */
		429	if (writer->level == 0)
		430	writer->stack = (char *)mxml_malloc(sizeof(char ));
		431	else
		432	writer->stack = (char *)mxml_realloc(writer->stack, sizeof(char )*(writer->level+1));
		433
		434	writer->stack[writer->level] = (char *) mxml_malloc(strlen(name_enc)+1);
		435	strcpy(writer->stack[writer->level], name_enc);
		436	writer->level++;
		437	writer->element_is_open = TRUE;
		438	writer->data_was_written = FALSE;
		439
		440	return mxml_write_line(writer, line) == (int)strlen(line);
		441	}
		442
		443	/------------------------------------------------------------------/
		444
		445	int mxml_start_element(MXML_WRITER writer, const char name)
		446	{
		447	return mxml_start_element1(writer, name, TRUE);
		448	}
		449
		450	/------------------------------------------------------------------/
		451
		452	int mxml_start_element_noindent(MXML_WRITER writer, const char name)
		453	{
		454	return mxml_start_element1(writer, name, FALSE);
		455	}
		456
		457	/------------------------------------------------------------------/
		458
		459	/**
		460	* close an open XML element
		461	*/
		462	int mxml_end_element(MXML_WRITER *writer)
		463	{
		464	int i;
		465	char line[1000];
		466
		467	if (writer->level == 0)
		468	return 0;
		469
		470	writer->level--;
		471
		472	if (writer->element_is_open) {
		473	writer->element_is_open = FALSE;
		474	mxml_free(writer->stack[writer->level]);
		475	if (writer->level == 0)
		476	mxml_free(writer->stack);
		477	strcpy(line, "/>\n");
		478	return mxml_write_line(writer, line) == (int)strlen(line);
		479	}
		480
		481	line[0] = 0;
		482	if (!writer->data_was_written) {
		483	for (i=0 ; i<writer->level ; i++)
		484	strlcat(line, XML_INDENT, sizeof(line));
		485	}
		486
		487	strlcat(line, "</", sizeof(line));
		488	strlcat(line, writer->stack[writer->level], sizeof(line));
		489	mxml_free(writer->stack[writer->level]);
		490	if (writer->level == 0)
		491	mxml_free(writer->stack);
		492	strlcat(line, ">\n", sizeof(line));
		493	writer->data_was_written = FALSE;
		494
		495	return mxml_write_line(writer, line) == (int)strlen(line);
		496	}
		497
		498	/------------------------------------------------------------------/
		499
		500	/**
		501	* write an attribute to the currently open XML element
		502	*/
		503	int mxml_write_attribute(MXML_WRITER writer, const char name, const char *value)
		504	{
		505	char name_enc[4096], val_enc[4096], line[8192];
		506
		507	if (!writer->element_is_open)
		508	return FALSE;
		509
		510	strcpy(name_enc, name);
		511	mxml_encode(name_enc, sizeof(name_enc), writer->translate);
		512	strcpy(val_enc, value);
		513	mxml_encode(val_enc, sizeof(val_enc), writer->translate);
		514
		515	sprintf(line, " %s=\"%s\"", name_enc, val_enc);
		516
		517	return mxml_write_line(writer, line) == (int)strlen(line);
		518	}
		519
		520	/------------------------------------------------------------------/
		521
		522	/**
		523	* write value of an XML element, like <[name]>[value]</[name]>
		524	*/
		525	int mxml_write_value(MXML_WRITER writer, const char data)
		526	{
		527	static int data_size = 0;
		528
		529	if (!writer->element_is_open)
		530	return FALSE;
		531
		532	if (mxml_write_line(writer, ">") != 1)
		533	return FALSE;
		534	writer->element_is_open = FALSE;
		535	writer->data_was_written = TRUE;
		536
		537	if (data_size == 0) {
		538	_data_enc = (char *)mxml_malloc(1000);
		539	data_size = 1000;
		540	} else if ((int)strlen(data)*2+1000 > data_size) {
		541	data_size = 1000+(int)strlen(data)*2;
		542	_data_enc = (char *)mxml_realloc(_data_enc, data_size);
		543	}
		544
		545	strcpy(_data_enc, data);
		546	mxml_encode(_data_enc, data_size, writer->translate);
		547	return mxml_write_line(writer, _data_enc) == (int)strlen(_data_enc);
		548	}
		549
		550	/------------------------------------------------------------------/
		551
		552	/**
		553	* write empty line
		554	*/
		555	int mxml_write_empty_line(MXML_WRITER *writer)
		556	{
		557	if (writer->element_is_open) {
		558	mxml_write_line(writer, ">\n");
		559	writer->element_is_open = FALSE;
		560	}
		561
		562	if (mxml_write_line(writer, "\n") != 1)
		563	return FALSE;
		564
		565	return TRUE;
		566	}
		567
		568	/------------------------------------------------------------------/
		569
		570	/**
		571	* write a comment to an XML file, enclosed in "<!--" and "-->"
		572	*/
		573	int mxml_write_comment(MXML_WRITER writer, const char string)
		574	{
		575	int i;
		576	char line[1000];
		577
		578	if (writer->element_is_open) {
		579	mxml_write_line(writer, ">\n");
		580	writer->element_is_open = FALSE;
		581	}
		582
		583	line[0] = 0;
		584	for (i=0 ; i<writer->level ; i++)
		585	strlcat(line, XML_INDENT, sizeof(line));
		586
		587	strlcat(line, "<!-- ", sizeof(line));
		588	strlcat(line, string, sizeof(line));
		589	strlcat(line, " -->\n", sizeof(line));
		590	if (mxml_write_line(writer, line) != (int)strlen(line))
		591	return FALSE;
		592
		593	return TRUE;
		594	}
		595
		596	/------------------------------------------------------------------/
		597
		598	/**
		599	* shortcut to write an element with a value but without attribute
		600	*/
		601	int mxml_write_element(MXML_WRITER writer, const char name, const char *value)
		602	{
		603	int i;
		604
		605	i = mxml_start_element(writer, name);
		606	i += mxml_write_value(writer, value);
		607	i += mxml_end_element(writer);
		608	return i;
		609	}
		610
		611	/------------------------------------------------------------------/
		612
		613	/**
		614	* close a file opened with mxml_open_writer
		615	*/
		616	char mxml_close_buffer(MXML_WRITER writer)
		617	{
		618	int i;
		619	char *p;
		620
		621	if (writer->element_is_open) {
		622	writer->element_is_open = FALSE;
		623	if (mxml_write_line(writer, ">\n") != 2)
		624	return NULL;
		625	}
		626
		627	/* close remaining open levels */
		628	for (i = 0 ; i<writer->level ; i++)
		629	mxml_end_element(writer);
		630
		631	p = writer->buffer;
		632	mxml_free(writer);
		633	return p;
		634	}
		635
		636	/------------------------------------------------------------------/
		637
		638	/**
		639	* close a file opened with mxml_open_writer
		640	*/
		641	int mxml_close_file(MXML_WRITER *writer)
		642	{
		643	int i;
		644
		645	if (writer->element_is_open) {
		646	writer->element_is_open = FALSE;
		647	if (mxml_write_line(writer, ">\n") != 2)
		648	return 0;
		649	}
		650
		651	/* close remaining open levels */
		652	for (i = 0 ; i<writer->level ; i++)
		653	mxml_end_element(writer);
		654
		655	close(writer->fh);
		656	mxml_free(writer);
		657	return 1;
		658	}
		659
		660	/------------------------------------------------------------------/
		661
		662	/**
		663	* create root node of an XML tree
		664	*/
		665	PMXML_NODE mxml_create_root_node(void)
		666	{
		667	PMXML_NODE root;
		668
		669	root = (PMXML_NODE)calloc(sizeof(MXML_NODE), 1);
		670	strcpy(root->name, "root");
		671	root->node_type = DOCUMENT_NODE;
		672
		673	return root;
		674	}
		675
		676	/------------------------------------------------------------------/
		677
		678	/**
		679	* add a subnode (child) to an existing parent node as a specific position
		680	*/
		681	PMXML_NODE mxml_add_special_node_at(PMXML_NODE parent, int node_type, const char node_name, const char value, int idx)
		682	{
		683	PMXML_NODE pnode, pchild;
		684	int i, j;
		685
		686	assert(parent);
		687	if (parent->n_children == 0)
		688	parent->child = (PMXML_NODE)mxml_malloc(sizeof(MXML_NODE));
		689	else
		690	parent->child = (PMXML_NODE)mxml_realloc(parent->child, sizeof(MXML_NODE)*(parent->n_children+1));
		691	assert(parent->child);
		692
		693	/* move following nodes one down */
		694	if (idx < parent->n_children)
		695	for (i=parent->n_children ; i > idx ; i--)
		696	memcpy(&parent->child[i], &parent->child[i-1], sizeof(MXML_NODE));
		697
		698	/* correct parent pointer for children */
		699	for (i=0 ; i<parent->n_children ; i++) {
		700	pchild = parent->child+i;
		701	for (j=0 ; j<pchild->n_children ; j++)
		702	pchild->child[j].parent = pchild;
		703	}
		704
		705	/* initialize new node */
		706	pnode = &parent->child[idx];
		707	memset(pnode, 0, sizeof(MXML_NODE));
		708	strlcpy(pnode->name, node_name, sizeof(pnode->name));
		709	pnode->node_type = node_type;
		710	pnode->parent = parent;
		711
		712	parent->n_children++;
		713
		714	if (value && *value) {
		715	pnode->value = (char *)mxml_malloc(strlen(value)+1);
		716	assert(pnode->value);
		717	strcpy(pnode->value, value);
		718	}
		719
		720	return pnode;
		721	}
		722
		723	/------------------------------------------------------------------/
		724
		725	/**
		726	* add a subnode (child) to an existing parent node at the end
		727	*/
		728	PMXML_NODE mxml_add_special_node(PMXML_NODE parent, int node_type, const char node_name, const char value)
		729	{
		730	return mxml_add_special_node_at(parent, node_type, node_name, value, parent->n_children);
		731	}
		732
		733	/------------------------------------------------------------------/
		734
		735	/**
		736	* write value of an XML element, like <[name]>[value]</[name]>
		737	*/
		738	PMXML_NODE mxml_add_node(PMXML_NODE parent, const char node_name, const char value)
		739	{
		740	return mxml_add_special_node_at(parent, ELEMENT_NODE, node_name, value, parent->n_children);
		741	}
		742
		743	/------------------------------------------------------------------/
		744
		745	/**
		746	* add a subnode (child) to an existing parent node at the end
		747	*/
		748	PMXML_NODE mxml_add_node_at(PMXML_NODE parent, const char node_name, const char value, int idx)
		749	{
		750	return mxml_add_special_node_at(parent, ELEMENT_NODE, node_name, value, idx);
		751	}
		752
		753	/------------------------------------------------------------------/
		754
		755	/**
		756	* add a whole node tree to an existing parent node at a specific position
		757	*/
		758	int mxml_add_tree_at(PMXML_NODE parent, PMXML_NODE tree, int idx)
		759	{
		760	PMXML_NODE pchild;
		761	int i, j, k;
		762
		763	assert(parent);
		764	assert(tree);
		765	if (parent->n_children == 0)
		766	parent->child = (PMXML_NODE)mxml_malloc(sizeof(MXML_NODE));
		767	else {
		768	pchild = parent->child;
		769	parent->child = (PMXML_NODE)mxml_realloc(parent->child, sizeof(MXML_NODE)*(parent->n_children+1));
		770
		771	if (parent->child != pchild) {
		772	/* correct parent pointer for children */
		773	for (i=0 ; i<parent->n_children ; i++) {
		774	pchild = parent->child+i;
		775	for (j=0 ; j<pchild->n_children ; j++)
		776	pchild->child[j].parent = pchild;
		777	}
		778	}
		779	}
		780	assert(parent->child);
		781
		782	if (idx < parent->n_children)
		783	for (i=parent->n_children ; i > idx ; i--) {
		784	/* move following nodes one down */
		785	memcpy(&parent->child[i], &parent->child[i-1], sizeof(MXML_NODE));
		786
		787	/* correct parent pointer for children */
		788	for (j=0 ; j<parent->n_children ; j++) {
		789	pchild = parent->child+j;
		790	for (k=0 ; k<pchild->n_children ; k++)
		791	pchild->child[k].parent = pchild;
		792	}
		793	}
		794
		795	/* initialize new node */
		796	memcpy(parent->child+idx, tree, sizeof(MXML_NODE));
		797	parent->n_children++;
		798	parent->child[idx].parent = parent;
		799
		800	/* correct parent pointer for children */
		801	for (i=0 ; i<parent->n_children ; i++) {
		802	pchild = parent->child+i;
		803	for (j=0 ; j<pchild->n_children ; j++)
		804	pchild->child[j].parent = pchild;
		805	}
		806
		807	return TRUE;
		808	}
		809
		810	/------------------------------------------------------------------/
		811
		812	/**
		813	* add a whole node tree to an existing parent node at the end
		814	*/
		815	int mxml_add_tree(PMXML_NODE parent, PMXML_NODE tree)
		816	{
		817	return mxml_add_tree_at(parent, tree, parent->n_children);
		818	}
		819
		820	/------------------------------------------------------------------/
		821
		822	/**
		823	* add an attribute to an existing node
		824	*/
		825	int mxml_add_attribute(PMXML_NODE pnode, const char attrib_name, const char attrib_value)
		826	{
		827	if (pnode->n_attributes == 0) {
		828	pnode->attribute_name = (char*)mxml_malloc(MXML_NAME_LENGTH);
		829	pnode->attribute_value = (char*)mxml_malloc(sizeof(char ));
		830	} else {
		831	pnode->attribute_name = (char)mxml_realloc(pnode->attribute_name, MXML_NAME_LENGTH(pnode->n_attributes+1));
		832	pnode->attribute_value = (char*)mxml_realloc(pnode->attribute_value, sizeof(char )*(pnode->n_attributes+1));
		833	}
		834
		835	strlcpy(pnode->attribute_name+pnode->n_attributes*MXML_NAME_LENGTH, attrib_name, MXML_NAME_LENGTH);
		836	pnode->attribute_value[pnode->n_attributes] = (char *)mxml_malloc(strlen(attrib_value)+1);
		837	strcpy(pnode->attribute_value[pnode->n_attributes], attrib_value);
		838	pnode->n_attributes++;
		839
		840	return TRUE;
		841	}
		842
		843	/------------------------------------------------------------------/
		844
		845	/**
		846	* return number of subnodes (children) of a node
		847	*/
		848	int mxml_get_number_of_children(PMXML_NODE pnode)
		849	{
		850	assert(pnode);
		851	return pnode->n_children;
		852	}
		853
		854	/------------------------------------------------------------------/
		855
		856	/**
		857	* return number of subnodes (children) of a node
		858	*/
		859	PMXML_NODE mxml_subnode(PMXML_NODE pnode, int idx)
		860	{
		861	assert(pnode);
		862	if (idx < pnode->n_children)
		863	return &pnode->child[idx];
		864	return NULL;
		865	}
		866
		867	/------------------------------------------------------------------/
		868
		869
		870	int mxml_find_nodes1(PMXML_NODE tree, const char xml_path, PMXML_NODE nodelist, int found);
		871
		872	int mxml_add_resultnode(PMXML_NODE node, const char xml_path, PMXML_NODE nodelist, int found)
		873	{
		874	/* if at end of path, add this node */
		875	if (*xml_path == 0) {
		876	if (*found == 0)
		877	nodelist = (PMXML_NODE )mxml_malloc(sizeof(PMXML_NODE));
		878	else
		879	nodelist = (PMXML_NODE )mxml_realloc(nodelist, sizeof(PMXML_NODE)(*found + 1));
		880
		881	(nodelist)[found] = node;
		882	(*found)++;
		883	} else {
		884	/* if not at end of path, branch into subtree */
		885	return mxml_find_nodes1(node, xml_path+1, nodelist, found);
		886	}
		887
		888	return 1;
		889	}
		890
		891	/------------------------------------------------------------------/
		892
		893	/**
		894	Return list of XML nodes with a subset of XPATH specifications.
		895	Following elemets are possible
		896
		897	/<node>/<node>/..../<node> Find a node in the tree hierarchy
		898	/<node>[idx] Find child #[idx] of node (index starts from 1)
		899	/<node>[idx]/<node> Find subnode of the above
		900	/<node>[<subnode>=<value>] Find a node which has a specific subnode
		901	/<node>[<subnode>=<value>]/<node> Find subnode of the above
		902	/<node>[@<attrib>=<value>]/<node> Find a node which has a specific attribute
		903	*/
		904	int mxml_find_nodes1(PMXML_NODE tree, const char xml_path, PMXML_NODE nodelist, int found)
		905	{
		906	PMXML_NODE pnode;
		907	const char p1,p2;
		908	char *p3, node_name[256], condition[256];
		909	char cond_name[MXML_MAX_CONDITION][256], cond_value[MXML_MAX_CONDITION][256];
		910	int cond_type[MXML_MAX_CONDITION];
		911	int i, j, k, idx, num_cond;
		912	int cond_satisfied,cond_index;
		913	size_t len;
		914
		915	p1 = xml_path;
		916	pnode = tree;
		917
		918	/* skip leading '/' */
		919	if (p1 && p1 == '/')
		920	p1++;
		921
		922	do {
		923	p2 = p1;
		924	while (p2 && p2 != '/' && *p2 != '[')
		925	p2++;
		926	len = (size_t)p2 - (size_t)p1;
		927	if (len >= sizeof(node_name))
		928	return 0;
		929
		930	memcpy(node_name, p1, len);
		931	node_name[len] = 0;
		932	idx = 0;
		933	num_cond = 0;
		934	while (*p2 == '[') {
		935	cond_name[num_cond][0] = cond_value[num_cond][0] = cond_type[num_cond] = 0;
		936	p2++;
		937	if (isdigit(*p2)) {
		938	/* evaluate [idx] */
		939	idx = atoi(p2);
		940	p2 = strchr(p2, ']');
		941	if (p2 == NULL)
		942	return 0;
		943	p2++;
		944	} else {
		945	/* evaluate [<@attrib>/<subnode>=<value>] */
		946	while (p2 && isspace((unsigned char)p2))
		947	p2++;
		948	strlcpy(condition, p2, sizeof(condition));
		949	if (strchr(condition, ']'))
		950	*strchr(condition, ']') = 0;
		951	else
		952	return 0;
		953	p2 = strchr(p2, ']')+1;
		954	if ((p3 = strchr(condition, '=')) != NULL) {
		955	if (condition[0] == '@') {
		956	cond_type[num_cond] = 1;
		957	strlcpy(cond_name[num_cond], &condition[1], sizeof(cond_name[num_cond]));
		958	} else {
		959	strlcpy(cond_name[num_cond], condition, sizeof(cond_name[num_cond]));
		960	}
		961
		962	*strchr(cond_name[num_cond], '=') = 0;
		963	while (cond_name[num_cond][0] && isspace(cond_name[num_cond][strlen(cond_name[num_cond])-1]))
		964	cond_name[num_cond][strlen(cond_name[num_cond])-1] = 0;
		965
		966	p3++;
		967	while (p3 && isspace(p3))
		968	p3++;
		969	if (*p3 == '\"') {
		970	strlcpy(cond_value[num_cond], p3+1, sizeof(cond_value[num_cond]));
		971	while (cond_value[num_cond][0] && isspace(cond_value[num_cond][strlen(cond_value[num_cond])-1]))
		972	cond_value[num_cond][strlen(cond_value[num_cond])-1] = 0;
		973	if (cond_value[num_cond][0] && cond_value[num_cond][strlen(cond_value[num_cond])-1] == '\"')
		974	cond_value[num_cond][strlen(cond_value[num_cond])-1] = 0;
		975	} else if (*p3 == '\'') {
		976	strlcpy(cond_value[num_cond], p3+1, sizeof(cond_value[num_cond]));
		977	while (cond_value[num_cond][0] && isspace(cond_value[num_cond][strlen(cond_value[num_cond])-1]))
		978	cond_value[num_cond][strlen(cond_value[num_cond])-1] = 0;
		979	if (cond_value[num_cond][0] && cond_value[num_cond][strlen(cond_value[num_cond])-1] == '\'')
		980	cond_value[num_cond][strlen(cond_value[num_cond])-1] = 0;
		981	} else {
		982	strlcpy(cond_value[num_cond], p3, sizeof(cond_value[num_cond]));
		983	while (cond_value[num_cond][0] && isspace(cond_value[num_cond][strlen(cond_value[num_cond])-1]))
		984	cond_value[num_cond][strlen(cond_value[num_cond])-1] = 0;
		985	}
		986	num_cond++;
		987	}
		988	}
		989	}
		990
		991	cond_index = 0;
		992	for (i=j=0 ; i<pnode->n_children ; i++) {
		993	if (num_cond) {
		994	cond_satisfied = 0;
		995	for (k=0;k<num_cond;k++) {
		996	if (cond_type[k]) {
		997	/* search node with attribute */
		998	if (strcmp(pnode->child[i].name, node_name) == 0)
		999	if (mxml_get_attribute(pnode->child+i, cond_name[k]) &&
		1000	strcmp(mxml_get_attribute(pnode->child+i, cond_name[k]), cond_value[k]) == 0)
		1001	cond_satisfied++;
		1002	}
		1003	else {
		1004	/* search subnode */
		1005	for (j=0 ; j<pnode->child[i].n_children ; j++)
		1006	if (strcmp(pnode->child[i].child[j].name, cond_name[k]) == 0)
		1007	if (strcmp(pnode->child[i].child[j].value, cond_value[k]) == 0)
		1008	cond_satisfied++;
		1009	}
		1010	}
		1011	if (cond_satisfied==num_cond) {
		1012	cond_index++;
		1013	if (idx == 0 \|\| cond_index == idx) {
		1014	if (!mxml_add_resultnode(pnode->child+i, p2, nodelist, found))
		1015	return 0;
		1016	}
		1017	}
		1018	} else {
		1019	if (strcmp(pnode->child[i].name, node_name) == 0)
		1020	if (idx == 0 \|\| ++j == idx)
		1021	if (!mxml_add_resultnode(pnode->child+i, p2, nodelist, found))
		1022	return 0;
		1023	}
		1024	}
		1025
		1026	if (i == pnode->n_children)
		1027	return 1;
		1028
		1029	pnode = &pnode->child[i];
		1030	p1 = p2;
		1031	if (*p1 == '/')
		1032	p1++;
		1033
		1034	} while (*p2);
		1035
		1036	return 1;
		1037	}
		1038
		1039	/------------------------------------------------------------------/
		1040
		1041	int mxml_find_nodes(PMXML_NODE tree, const char xml_path, PMXML_NODE *nodelist)
		1042	{
		1043	int status, found = 0;
		1044
		1045	status = mxml_find_nodes1(tree, xml_path, nodelist, &found);
		1046
		1047	if (status == 0)
		1048	return -1;
		1049
		1050	return found;
		1051	}
		1052
		1053	/------------------------------------------------------------------/
		1054
		1055	/**
		1056	* Search for a specific XML node with a subset of XPATH specifications.
		1057	* Return first found node. For syntax see mxml_find_nodes()
		1058	*/
		1059	PMXML_NODE mxml_find_node(PMXML_NODE tree, const char *xml_path)
		1060	{
		1061	PMXML_NODE *node, pnode;
		1062	int n;
		1063
		1064	n = mxml_find_nodes(tree, xml_path, &node);
		1065	if (n > 0) {
		1066	pnode = node[0];
		1067	mxml_free(node);
		1068	} else
		1069	pnode = NULL;
		1070
		1071	return pnode;
		1072	}
		1073
		1074	/------------------------------------------------------------------/
		1075
		1076	PMXML_NODE mxml_get_parent(PMXML_NODE pnode)
		1077	{
		1078	assert(pnode);
		1079	return pnode->parent;
		1080	}
		1081
		1082	/------------------------------------------------------------------/
		1083
		1084	char *mxml_get_name(PMXML_NODE pnode)
		1085	{
		1086	assert(pnode);
		1087	return pnode->name;
		1088	}
		1089
		1090	/------------------------------------------------------------------/
		1091
		1092	char *mxml_get_value(PMXML_NODE pnode)
		1093	{
		1094	assert(pnode);
		1095	return pnode->value;
		1096	}
		1097
		1098	/------------------------------------------------------------------/
		1099
		1100	int mxml_get_line_number_start(PMXML_NODE pnode)
		1101	{
		1102	assert(pnode);
		1103	return pnode->line_number_start;
		1104	}
		1105
		1106	/------------------------------------------------------------------/
		1107
		1108	int mxml_get_line_number_end(PMXML_NODE pnode)
		1109	{
		1110	assert(pnode);
		1111	return pnode->line_number_end;
		1112	}
		1113
		1114	/------------------------------------------------------------------/
		1115
		1116	char mxml_get_attribute(PMXML_NODE pnode, const char name)
		1117	{
		1118	int i;
		1119
		1120	assert(pnode);
		1121	for (i=0 ; i<pnode->n_attributes ; i++)
		1122	if (strcmp(pnode->attribute_name+i*MXML_NAME_LENGTH, name) == 0)
		1123	return pnode->attribute_value[i];
		1124
		1125	return NULL;
		1126	}
		1127
		1128	/------------------------------------------------------------------/
		1129
		1130	int mxml_replace_node_name(PMXML_NODE pnode, const char *name)
		1131	{
		1132	strlcpy(pnode->name, name, sizeof(pnode->name));
		1133	return TRUE;
		1134	}
		1135
		1136	/------------------------------------------------------------------/
		1137
		1138	int mxml_replace_node_value(PMXML_NODE pnode, const char *value)
		1139	{
		1140	if (pnode->value)
		1141	pnode->value = (char *)mxml_realloc(pnode->value, strlen(value)+1);
		1142	else if (value)
		1143	pnode->value = (char *)mxml_malloc(strlen(value)+1);
		1144	else
		1145	pnode->value = NULL;
		1146
		1147	if (value)
		1148	strcpy(pnode->value, value);
		1149
		1150	return TRUE;
		1151	}
		1152
		1153	/------------------------------------------------------------------/
		1154
		1155	/**
		1156	replace value os a subnode, like
		1157
		1158	<parent>
		1159	<child>value</child>
		1160	</parent>
		1161
		1162	if pnode=parent, and "name"="child", then "value" gets replaced
		1163	*/
		1164	int mxml_replace_subvalue(PMXML_NODE pnode, const char name, const char value)
		1165	{
		1166	int i;
		1167
		1168	for (i=0 ; i<pnode->n_children ; i++)
		1169	if (strcmp(pnode->child[i].name, name) == 0)
		1170	break;
		1171
		1172	if (i == pnode->n_children)
		1173	return FALSE;
		1174
		1175	return mxml_replace_node_value(&pnode->child[i], value);
		1176	}
		1177
		1178	/------------------------------------------------------------------/
		1179
		1180	/**
		1181	* change the name of an attribute, keep its value
		1182	*/
		1183	int mxml_replace_attribute_name(PMXML_NODE pnode, const char old_name, const char new_name)
		1184	{
		1185	int i;
		1186
		1187	for (i=0 ; i<pnode->n_attributes ; i++)
		1188	if (strcmp(pnode->attribute_name+i*MXML_NAME_LENGTH, old_name) == 0)
		1189	break;
		1190
		1191	if (i == pnode->n_attributes)
		1192	return FALSE;
		1193
		1194	strlcpy(pnode->attribute_name+i*MXML_NAME_LENGTH, new_name, MXML_NAME_LENGTH);
		1195	return TRUE;
		1196	}
		1197
		1198	/------------------------------------------------------------------/
		1199
		1200	/**
		1201	* change the value of an attribute
		1202	*/
		1203	int mxml_replace_attribute_value(PMXML_NODE pnode, const char attrib_name, const char attrib_value)
		1204	{
		1205	int i;
		1206
		1207	for (i=0 ; i<pnode->n_attributes ; i++)
		1208	if (strcmp(pnode->attribute_name+i*MXML_NAME_LENGTH, attrib_name) == 0)
		1209	break;
		1210
		1211	if (i == pnode->n_attributes)
		1212	return FALSE;
		1213
		1214	pnode->attribute_value[i] = (char *)mxml_realloc(pnode->attribute_value[i], strlen(attrib_value)+1);
		1215	strcpy(pnode->attribute_value[i], attrib_value);
		1216	return TRUE;
		1217	}
		1218
		1219	/------------------------------------------------------------------/
		1220
		1221	/**
		1222	* free memory of a node and remove it from the parent's child list
		1223	*/
		1224	int mxml_delete_node(PMXML_NODE pnode)
		1225	{
		1226	PMXML_NODE parent;
		1227	int i, j;
		1228
		1229	/* remove node from parent's list */
		1230	parent = pnode->parent;
		1231
		1232	if (parent) {
		1233	for (i=0 ; i<parent->n_children ; i++)
		1234	if (&parent->child[i] == pnode)
		1235	break;
		1236
		1237	/* free allocated node memory recursively */
		1238	mxml_free_tree(pnode);
		1239
		1240	if (i < parent->n_children) {
		1241	for (j=i ; j<parent->n_children-1 ; j++)
		1242	memcpy(&parent->child[j], &parent->child[j+1], sizeof(MXML_NODE));
		1243	parent->n_children--;
		1244	if (parent->n_children)
		1245	parent->child = (PMXML_NODE)mxml_realloc(parent->child, sizeof(MXML_NODE)*(parent->n_children));
		1246	else
		1247	mxml_free(parent->child);
		1248	}
		1249	} else
		1250	mxml_free_tree(pnode);
		1251
		1252	return TRUE;
		1253	}
		1254
		1255	/------------------------------------------------------------------/
		1256
		1257	int mxml_delete_attribute(PMXML_NODE pnode, const char *attrib_name)
		1258	{
		1259	int i, j;
		1260
		1261	for (i=0 ; i<pnode->n_attributes ; i++)
		1262	if (strcmp(pnode->attribute_name+i*MXML_NAME_LENGTH, attrib_name) == 0)
		1263	break;
		1264
		1265	if (i == pnode->n_attributes)
		1266	return FALSE;
		1267
		1268	mxml_free(pnode->attribute_value[i]);
		1269	for (j=i ; j<pnode->n_attributes-1 ; j++) {
		1270	strcpy(pnode->attribute_name+jMXML_NAME_LENGTH, pnode->attribute_name+(j+1)MXML_NAME_LENGTH);
		1271	pnode->attribute_value[j] = pnode->attribute_value[j+1];
		1272	}
		1273
		1274	if (pnode->n_attributes > 0) {
		1275	pnode->attribute_name = (char )mxml_realloc(pnode->attribute_name, MXML_NAME_LENGTH(pnode->n_attributes-1));
		1276	pnode->attribute_value = (char *)mxml_realloc(pnode->attribute_value, sizeof(char )*(pnode->n_attributes-1));
		1277	} else {
		1278	mxml_free(pnode->attribute_name);
		1279	mxml_free(pnode->attribute_value);
		1280	}
		1281
		1282	return TRUE;
		1283	}
		1284
		1285	/------------------------------------------------------------------/
		1286
		1287	#define HERE root, file_name, line_number, error, error_size, error_line
		1288
		1289	/**
		1290	* used inside mxml_parse_file for reporting errors
		1291	*/
		1292	PMXML_NODE read_error(PMXML_NODE root, const char file_name, int line_number, char error, int error_size, int error_line, const char format, ...)
		1293	{
		1294	char *msg, str[1000];
		1295	va_list argptr;
		1296
		1297	if (file_name && file_name[0])
		1298	sprintf(str, "XML read error in file \"%s\", line %d: ", file_name, line_number);
		1299	else
		1300	sprintf(str, "XML read error, line %d: ", line_number);
		1301	msg = (char *)mxml_malloc(error_size);
		1302	if (error)
		1303	strlcpy(error, str, error_size);
		1304
		1305	va_start(argptr, format);
		1306	vsprintf(str, (char *) format, argptr);
		1307	va_end(argptr);
		1308
		1309	if (error)
		1310	strlcat(error, str, error_size);
		1311	if (error_line)
		1312	*error_line = line_number;
		1313
		1314	mxml_free(msg);
		1315	mxml_free_tree(root);
		1316
		1317	return NULL;
		1318	}
		1319
		1320	/------------------------------------------------------------------/
		1321
		1322	/**
		1323	* Parse a XML buffer and convert it into a tree of MXML_NODE's.
		1324	* Return NULL in case of an error, return error description.
		1325	* Optional file_name is used for error reporting if called from mxml_parse_file()
		1326	*/
		1327	PMXML_NODE mxml_parse_buffer(const char buf, char error, int error_size, int *error_line)
		1328	{
		1329	char node_name[256], attrib_name[256], attrib_value[1000], quote;
		1330	const char p, pv;
		1331	int i,j, line_number;
		1332	PMXML_NODE root, ptree, pnew;
		1333	int end_element;
		1334	size_t len;
		1335	char file_name = NULL; / dummy for 'HERE' */
		1336
		1337	p = buf;
		1338	line_number = 1;
		1339
		1340	root = mxml_create_root_node();
		1341	ptree = root;
		1342
		1343	/* parse file contents */
		1344	do {
		1345	if (*p == '<') {
		1346
		1347	end_element = FALSE;
		1348
		1349	/* found new element */
		1350	p++;
		1351	while (p && isspace(p)) {
		1352	if (*p == '\n')
		1353	line_number++;
		1354	p++;
		1355	}
		1356	if (!*p)
		1357	return read_error(HERE, "Unexpected end of file");
		1358
		1359	if (strncmp(p, "!--", 3) == 0) {
		1360
		1361	/* found comment */
		1362
		1363	pnew = mxml_add_special_node(ptree, COMMENT_NODE, "Comment", NULL);
		1364	pnew->line_number_start = line_number;
		1365	pv = p+3;
		1366	while (*pv == ' ')
		1367	pv++;
		1368
		1369	p += 3;
		1370	if (strstr(p, "-->") == NULL)
		1371	return read_error(HERE, "Unterminated comment");
		1372
		1373	while (strncmp(p, "-->", 3) != 0) {
		1374	if (*p == '\n')
		1375	line_number++;
		1376	p++;
		1377	}
		1378
		1379	len = (size_t)p - (size_t)pv;
		1380	pnew->value = (char *)mxml_malloc(len+1);
		1381	memcpy(pnew->value, pv, len);
		1382	pnew->value[len] = 0;
		1383	pnew->line_number_end = line_number;
		1384	mxml_decode(pnew->value);
		1385
		1386	p += 3;
		1387
		1388	} else if (*p == '?') {
		1389
		1390	/* found ?...? element */
		1391	pnew = mxml_add_special_node(ptree, PROCESSING_INSTRUCTION_NODE, "PI", NULL);
		1392	pnew->line_number_start = line_number;
		1393	pv = p+1;
		1394
		1395	p++;
		1396	if (strstr(p, "?>") == NULL)
		1397	return read_error(HERE, "Unterminated ?...? element");
		1398
		1399	while (strncmp(p, "?>", 2) != 0) {
		1400	if (*p == '\n')
		1401	line_number++;
		1402	p++;
		1403	}
		1404
		1405	len = (size_t)p - (size_t)pv;
		1406	pnew->value = (char *)mxml_malloc(len+1);
		1407	memcpy(pnew->value, pv, len);
		1408	pnew->value[len] = 0;
		1409	pnew->line_number_end = line_number;
		1410	mxml_decode(pnew->value);
		1411
		1412	p += 2;
		1413
		1414	} else if (strncmp(p, "!DOCTYPE", 8) == 0 ) {
		1415
		1416	/* found !DOCTYPE element , skip it */
		1417	p += 8;
		1418	if (strstr(p, ">") == NULL)
		1419	return read_error(HERE, "Unterminated !DOCTYPE element");
		1420
		1421	j = 0;
		1422	while (p && (p != '>' \|\| j > 0)) {
		1423	if (*p == '\n')
		1424	line_number++;
		1425	else if (*p == '<')
		1426	j++;
		1427	else if (*p == '>')
		1428	j--;
		1429	p++;
		1430	}
		1431	if (!*p)
		1432	return read_error(HERE, "Unexpected end of file");
		1433
		1434	p++;
		1435
		1436	} else {
		1437
		1438	/* found normal element */
		1439	if (*p == '/') {
		1440	end_element = TRUE;
		1441	p++;
		1442	while (p && isspace((unsigned char)p)) {
		1443	if (*p == '\n')
		1444	line_number++;
		1445	p++;
		1446	}
		1447	if (!*p)
		1448	return read_error(HERE, "Unexpected end of file");
		1449	}
		1450
		1451	/* extract node name */
		1452	i = 0;
		1453	node_name[i] = 0;
		1454	while (p && !isspace((unsigned char)p) && p != '/' && p != '>' && *p != '<')
		1455	node_name[i++] = *p++;
		1456	node_name[i] = 0;
		1457	if (!*p)
		1458	return read_error(HERE, "Unexpected end of file");
		1459	if (*p == '<')
		1460	return read_error(HERE, "Unexpected \'<\' inside element \"%s\"", node_name);
		1461
		1462	mxml_decode(node_name);
		1463
		1464	if (end_element) {
		1465
		1466	if (!ptree)
		1467	return read_error(HERE, "Found unexpected </%s>", node_name);
		1468
		1469	/* close previously opened element */
		1470	if (strcmp(ptree->name, node_name) != 0)
		1471	return read_error(HERE, "Found </%s>, expected </%s>", node_name, ptree->name);
		1472	ptree->line_number_end = line_number;
		1473
		1474	/* go up one level on the tree */
		1475	ptree = ptree->parent;
		1476
		1477	} else {
		1478
		1479	if (ptree == NULL)
		1480	return read_error(HERE, "Unexpected second top level node");
		1481
		1482	/* allocate new element structure in parent tree */
		1483	pnew = mxml_add_node(ptree, node_name, NULL);
		1484	pnew->line_number_start = line_number;
		1485	pnew->line_number_end = line_number;
		1486
		1487	while (p && isspace((unsigned char)p)) {
		1488	if (*p == '\n')
		1489	line_number++;
		1490	p++;
		1491	}
		1492	if (!*p)
		1493	return read_error(HERE, "Unexpected end of file");
		1494
		1495	while (p != '>' && p != '/') {
		1496
		1497	/* found attribute */
		1498	pv = p;
		1499	while (pv && !isspace((unsigned char)pv) && pv != '=' && pv != '<' && *pv != '>')
		1500	pv++;
		1501	if (!*pv)
		1502	return read_error(HERE, "Unexpected end of file");
		1503	if (pv == '<' \|\| pv == '>')
		1504	return read_error(HERE, "Unexpected \'%c\' inside element \"%s\"", *pv, node_name);
		1505
		1506	/* extract attribute name */
		1507	len = (size_t)pv - (size_t)p;
		1508	if (len > sizeof(attrib_name)-1)
		1509	len = sizeof(attrib_name)-1;
		1510	memcpy(attrib_name, p, len);
		1511	attrib_name[len] = 0;
		1512	mxml_decode(attrib_name);
		1513
		1514	p = pv;
		1515	while (p && isspace((unsigned char)p)) {
		1516	if (*p == '\n')
		1517	line_number++;
		1518	p++;
		1519	}
		1520	if (!*p)
		1521	return read_error(HERE, "Unexpected end of file");
		1522	if (*p != '=')
		1523	return read_error(HERE, "Expect \"=\" here");
		1524
		1525	p++;
		1526	while (p && isspace((unsigned char)p)) {
		1527	if (*p == '\n')
		1528	line_number++;
		1529	p++;
		1530	}
		1531	if (!*p)
		1532	return read_error(HERE, "Unexpected end of file");
		1533	if (p != '\"' && p != '\'')
		1534	return read_error(HERE, "Expect \" or \' here");
		1535	quote = *p;
		1536	p++;
		1537
		1538	/* extract attribute value */
		1539	pv = p;
		1540	while (pv && pv != quote)
		1541	pv++;
		1542	if (!*pv)
		1543	return read_error(HERE, "Unexpected end of file");
		1544
		1545	len = (size_t)pv - (size_t)p;
		1546	if (len > sizeof(attrib_value)-1)
		1547	len = sizeof(attrib_value)-1;
		1548	memcpy(attrib_value, p, len);
		1549	attrib_value[len] = 0;
		1550	mxml_decode(attrib_value);
		1551
		1552	/* add attribute to current node */
		1553	mxml_add_attribute(pnew, attrib_name, attrib_value);
		1554
		1555	p = pv+1;
		1556	while (p && isspace((unsigned char)p)) {
		1557	if (*p == '\n')
		1558	line_number++;
		1559	p++;
		1560	}
		1561	if (!*p)
		1562	return read_error(HERE, "Unexpected end of file");
		1563	}
		1564
		1565	if (*p == '/') {
		1566
		1567	/* found empty node, like <node/>, just skip closing bracket */
		1568	p++;
		1569
		1570	while (p && isspace((unsigned char)p)) {
		1571	if (*p == '\n')
		1572	line_number++;
		1573	p++;
		1574	}
		1575	if (!*p)
		1576	return read_error(HERE, "Unexpected end of file");
		1577	if (*p != '>')
		1578	return read_error(HERE, "Expected \">\" after \"/\"");
		1579	p++;
		1580	}
		1581
		1582	if (*p == '>') {
		1583
		1584	p++;
		1585
		1586	/* check if we have sub-element or value */
		1587	pv = p;
		1588	while (pv && isspace((unsigned char)pv)) {
		1589	if (*pv == '\n')
		1590	line_number++;
		1591	pv++;
		1592	}
		1593	if (!*pv)
		1594	return read_error(HERE, "Unexpected end of file");
		1595
		1596	if (pv == '<' && (pv+1) != '/') {
		1597
		1598	/* start new subtree */
		1599	ptree = pnew;
		1600	p = pv;
		1601
		1602	} else {
		1603
		1604	/* extract value */
		1605	while (pv && pv != '<') {
		1606	if (*pv == '\n')
		1607	line_number++;
		1608	pv++;
		1609	}
		1610	if (!*pv)
		1611	return read_error(HERE, "Unexpected end of file");
		1612
		1613	len = (size_t)pv - (size_t)p;
		1614	pnew->value = (char *)mxml_malloc(len+1);
		1615	memcpy(pnew->value, p, len);
		1616	pnew->value[len] = 0;
		1617	mxml_decode(pnew->value);
		1618	p = pv;
		1619
		1620	ptree = pnew;
		1621	}
		1622	}
		1623	}
		1624	}
		1625	}
		1626
		1627	/* go to next element */
		1628	while (p && p != '<') {
		1629	if (*p == '\n')
		1630	line_number++;
		1631	p++;
		1632	}
		1633	} while (*p);
		1634
		1635	return root;
		1636	}
		1637
		1638	/------------------------------------------------------------------/
		1639
		1640	/**
		1641	* parse !ENTYTY entries of XML files and replace with references.
		1642	* Return 0 in case of no errors, return error description.
		1643	* Optional file_name is used for error reporting if called from mxml_parse_file()
		1644	*/
		1645	int mxml_parse_entity(char *buf, const char file_name, char error, int error_size, int error_line)
		1646	{
		1647	char *p;
		1648	char *pv;
		1649	char delimiter;
		1650	int i, j, k, line_number, status;
		1651	char *replacement;
		1652	char entity_name[MXML_MAX_ENTITY][256];
		1653	char entity_reference_name[MXML_MAX_ENTITY][256];
		1654	char *entity_value[MXML_MAX_ENTITY];
		1655	int entity_type[MXML_MAX_ENTITY]; /* internal or external */
		1656	int entity_line_number[MXML_MAX_ENTITY];
		1657	int nentity;
		1658	int fh, length, len;
		1659	char *buffer;
		1660	int ip; /* counter for entity value */
		1661	char directoryname[FILENAME_MAX];
		1662	char filename[FILENAME_MAX];
		1663	int entity_value_length[MXML_MAX_ENTITY];
		1664	int entity_name_length[MXML_MAX_ENTITY];
		1665
		1666	PMXML_NODE root = mxml_create_root_node(); /* dummy for 'HERE' */
		1667
		1668	for (ip = 0; ip < MXML_MAX_ENTITY; ip++)
		1669	entity_value[ip] = NULL;
		1670
		1671	line_number = 1;
		1672	nentity = -1;
		1673	status = 0;
		1674
		1675	if (!buf \|\| !(buf) \|\| !strlen(buf))
		1676	return 0;
		1677
		1678	strcpy(directoryname, file_name);
		1679	mxml_dirname(directoryname);
		1680
		1681	/* copy string to temporary space */
		1682	buffer = (char ) mxml_malloc(strlen(buf) + 1);
		1683	if (buffer == NULL) {
		1684	read_error(HERE, "Cannot allocate memory.");
		1685	status = 1;
		1686	goto error;
		1687	}
		1688	strcpy(buffer, *buf);
		1689
		1690	p = strstr(buffer, "!DOCTYPE");
		1691	if (p == NULL) { /* no entities */
		1692	status = 0;
		1693	goto error;
		1694	}
		1695
		1696	pv = strstr(p, "[");
		1697	if (pv == NULL) { /* no entities */
		1698	status = 1;
		1699	goto error;
		1700	}
		1701
		1702	p = pv + 1;
		1703
		1704	/* search !ENTITY */
		1705	do {
		1706	if (*p == ']')
		1707	break;
		1708
		1709	if (*p == '<') {
		1710
		1711	/* found new entity */
		1712	p++;
		1713	while (p && isspace((unsigned char)p)) {
		1714	if (*p == '\n')
		1715	line_number++;
		1716	p++;
		1717	}
		1718	if (!*p) {
		1719	read_error(HERE, "Unexpected end of file");
		1720	status = 1;
		1721	goto error;
		1722	}
		1723
		1724	if (strncmp(p, "!--", 3) == 0) {
		1725	/* found comment */
		1726	p += 3;
		1727	if (strstr(p, "-->") == NULL) {
		1728	read_error(HERE, "Unterminated comment");
		1729	status = 1;
		1730	goto error;
		1731	}
		1732
		1733	while (strncmp(p, "-->", 3) != 0) {
		1734	if (*p == '\n')
		1735	line_number++;
		1736	p++;
		1737	}
		1738	p += 3;
		1739	}
		1740
		1741	else if (strncmp(p, "!ENTITY", 7) == 0) {
		1742	/* found entity */
		1743	nentity++;
		1744	if (nentity >= MXML_MAX_ENTITY) {
		1745	read_error(HERE, "Too much entities");
		1746	status = 1;
		1747	goto error;
		1748	}
		1749
		1750	entity_line_number[nentity] = line_number;
		1751
		1752	pv = p + 7;
		1753	while (*pv == ' ')
		1754	pv++;
		1755
		1756	/* extract entity name */
		1757	p = pv;
		1758
		1759	while (p && isspace((unsigned char)p) && p != '<' && p != '>') {
		1760	if (*p == '\n')
		1761	line_number++;
		1762	p++;
		1763	}
		1764	if (!*p) {
		1765	read_error(HERE, "Unexpected end of file");
		1766	status = 1;
		1767	goto error;
		1768	}
		1769	if (p == '<' \|\| p == '>') {
		1770	read_error(HERE, "Unexpected \'%c\' inside !ENTITY", *p);
		1771	status = 1;
		1772	goto error;
		1773	}
		1774
		1775	pv = p;
		1776	while (pv && !isspace((unsigned char)pv) && pv != '<' && pv != '>')
		1777	pv++;
		1778
		1779	if (!*pv) {
		1780	read_error(HERE, "Unexpected end of file");
		1781	status = 1;
		1782	goto error;
		1783	}
		1784	if (pv == '<' \|\| pv == '>') {
		1785	read_error(HERE, "Unexpected \'%c\' inside entity \"%s\"", *pv, &entity_name[nentity][1]);
		1786	status = 1;
		1787	goto error;
		1788	}
		1789
		1790	entity_name[nentity][0] = '&';
		1791	i = 1;
		1792	entity_name[nentity][i] = 0;
		1793	while (p && !isspace((unsigned char)p) && p != '/' && p != '>' && *p != '<' && i < 253)
		1794	entity_name[nentity][i++] = *p++;
		1795	entity_name[nentity][i++] = ';';
		1796	entity_name[nentity][i] = 0;
		1797
		1798	if (!*p) {
		1799	read_error(HERE, "Unexpected end of file");
		1800	status = 1;
		1801	goto error;
		1802	}
		1803	if (*p == '<') {
		1804	read_error(HERE, "Unexpected \'<\' inside entity \"%s\"", &entity_name[nentity][1]);
		1805	status = 1;
		1806	goto error;
		1807	}
		1808
		1809	/* extract replacement or SYSTEM */
		1810	while (p && isspace((unsigned char)p)) {
		1811	if (*p == '\n')
		1812	line_number++;
		1813	p++;
		1814	}
		1815	if (!*p) {
		1816	read_error(HERE, "Unexpected end of file");
		1817	status = 1;
		1818	goto error;
		1819	}
		1820	if (*p == '>') {
		1821	read_error(HERE, "Unexpected \'>\' inside entity \"%s\"", &entity_name[nentity][1]);
		1822	status = 1;
		1823	goto error;
		1824	}
		1825
		1826	/* check if SYSTEM */
		1827	if (strncmp(p, "SYSTEM", 6) == 0) {
		1828	entity_type[nentity] = EXTERNAL_ENTITY;
		1829	p += 6;
		1830	} else {
		1831	entity_type[nentity] = INTERNAL_ENTITY;
		1832	}
		1833
		1834	/* extract replacement */
		1835	while (p && isspace((unsigned char)p)) {
		1836	if (*p == '\n')
		1837	line_number++;
		1838	p++;
		1839	}
		1840	if (!*p) {
		1841	read_error(HERE, "Unexpected end of file");
		1842	status = 1;
		1843	goto error;
		1844	}
		1845	if (*p == '>') {
		1846	read_error(HERE, "Unexpected \'>\' inside entity \"%s\"", &entity_name[nentity][1]);
		1847	status = 1;
		1848	goto error;
		1849	}
		1850
		1851	if (p != '\"' && p != '\'') {
		1852	read_error(HERE, "Replacement was not found for entity \"%s\"", &entity_name[nentity][1]);
		1853	status = 1;
		1854	goto error;
		1855	}
		1856	delimiter = *p;
		1857	p++;
		1858	if (!*p) {
		1859	read_error(HERE, "Unexpected end of file");
		1860	status = 1;
		1861	goto error;
		1862	}
		1863	pv = p;
		1864	while (pv && pv != delimiter)
		1865	pv++;
		1866
		1867	if (!*pv) {
		1868	read_error(HERE, "Unexpected end of file");
		1869	status = 1;
		1870	goto error;
		1871	}
		1872	if (*pv == '<') {
		1873	read_error(HERE, "Unexpected \'%c\' inside entity \"%s\"", *pv, &entity_name[nentity][1]);
		1874	status = 1;
		1875	goto error;
		1876	}
		1877
		1878	len = (int)((size_t) pv - (size_t) p);
		1879	replacement = (char *) mxml_malloc(len + 1);
		1880	if (replacement == NULL) {
		1881	read_error(HERE, "Cannot allocate memory.");
		1882	status = 1;
		1883	goto error;
		1884	}
		1885
		1886	memcpy(replacement, p, len);
		1887	replacement[len] = 0;
		1888	mxml_decode(replacement);
		1889
		1890	if (entity_type[nentity] == EXTERNAL_ENTITY) {
		1891	strcpy(entity_reference_name[nentity], replacement);
		1892	} else {
		1893	entity_value[nentity] = (char *) mxml_malloc(strlen(replacement));
		1894	if (entity_value[nentity] == NULL) {
		1895	read_error(HERE, "Cannot allocate memory.");
		1896	status = 1;
		1897	goto error;
		1898	}
		1899	strcpy(entity_value[nentity], replacement);
		1900	}
		1901	mxml_free(replacement);
		1902
		1903	p = pv;
		1904	while (p && isspace((unsigned char)p)) {
		1905	if (*p == '\n')
		1906	line_number++;
		1907	p++;
		1908	}
		1909	if (!*p) {
		1910	read_error(HERE, "Unexpected end of file");
		1911	status = 1;
		1912	goto error;
		1913	}
		1914	}
		1915	}
		1916
		1917	/* go to next element */
		1918	while (p && p != '<') {
		1919	if (*p == '\n')
		1920	line_number++;
		1921	p++;
		1922	}
		1923	} while (*p);
		1924	nentity++;
		1925
		1926	/* read external file */
		1927	for (i = 0; i < nentity; i++) {
		1928	if (entity_type[i] == EXTERNAL_ENTITY) {
		1929	if ( entity_reference_name[i][0] == DIR_SEPARATOR ) /* absolute path */
		1930	strcpy(filename, entity_reference_name[i]);
		1931	else /* relative path */
		1932	sprintf(filename, "%s%c%s", directoryname, DIR_SEPARATOR, entity_reference_name[i]);
		1933	fh = open(filename, O_RDONLY \| O_TEXT, 0644);
		1934
		1935	if (fh == -1) {
		1936	line_number = entity_line_number[i];
		1937	read_error(HERE, "%s is missing", entity_reference_name[i]);
		1938	status = 1;
		1939	goto error;
		1940	} else {
		1941	length = (int)lseek(fh, 0, SEEK_END);
		1942	lseek(fh, 0, SEEK_SET);
		1943	if (length == 0) {
		1944	entity_value[i] = (char *) mxml_malloc(1);
		1945	if (entity_value[i] == NULL) {
		1946	read_error(HERE, "Cannot allocate memory.");
		1947	close(fh);
		1948	status = 1;
		1949	goto error;
		1950	}
		1951	entity_value[i][0] = 0;
		1952	} else {
		1953	entity_value[i] = (char *) mxml_malloc(length);
		1954	if (entity_value[i] == NULL) {
		1955	read_error(HERE, "Cannot allocate memory.");
		1956	close(fh);
		1957	status = 1;
		1958	goto error;
		1959	}
		1960
		1961	/* read complete file at once */
		1962	length = (int)read(fh, entity_value[i], length);
		1963	entity_value[i][length - 1] = 0;
		1964	close(fh);
		1965
		1966	/* recursive parse */
		1967	if (mxml_parse_entity(&entity_value[i], filename, error, error_size, error_line) != 0) {
		1968	status = 1;
		1969	goto error;
		1970	}
		1971	}
		1972	}
		1973	}
		1974	}
		1975
		1976	/* count length of output string */
		1977	length = (int)strlen(buffer);
		1978	for (i = 0; i < nentity; i++) {
		1979	p = buffer;
		1980	entity_value_length[i] = (int)strlen(entity_value[i]);
		1981	entity_name_length[i] = (int)strlen(entity_name[i]);
		1982	while (1) {
		1983	pv = strstr(p, entity_name[i]);
		1984	if (pv) {
		1985	length += entity_value_length[i] - entity_name_length[i];
		1986	p = pv + 1;
		1987	} else {
		1988	break;
		1989	}
		1990	}
		1991	}
		1992
		1993	/* re-allocate memory */
		1994	buf = (char ) mxml_realloc(*buf, length + 1);
		1995	if (*buf == NULL) {
		1996	read_error(HERE, "Cannot allocate memory.");
		1997	status = 1;
		1998	goto error;
		1999	}
		2000
		2001	/* replace entities */
		2002	p = buffer;
		2003	pv = *buf;
		2004	do {
		2005	if (*p == '&') {
		2006	/* found entity */
		2007	for (j = 0; j < nentity; j++) {
		2008	if (strncmp(p, entity_name[j], entity_name_length[j]) == 0) {
		2009	for (k = 0; k < (int) entity_value_length[j]; k++)
		2010	*pv++ = entity_value[j][k];
		2011	p += entity_name_length[j];
		2012	break;
		2013	}
		2014	}
		2015	}
		2016	pv++ = p++;
		2017	} while (*p);
		2018	*pv = 0;
		2019
		2020	error:
		2021
		2022	if (buffer != NULL)
		2023	mxml_free(buffer);
		2024	for (ip = 0; ip < MXML_MAX_ENTITY; ip++)
		2025	if (entity_value[ip] != NULL)
		2026	mxml_free(entity_value[ip]);
		2027
		2028	return status;
		2029	}
		2030
		2031	/------------------------------------------------------------------/
		2032
		2033	/**
		2034	* parse a XML file and convert it into a tree of MXML_NODE's.
		2035	* Return NULL in case of an error, return error description
		2036	*/
		2037	PMXML_NODE mxml_parse_file(const char file_name, char error, int error_size, int *error_line)
		2038	{
		2039	char *buf, line[1000];
		2040	int fh, length;
		2041	PMXML_NODE root;
		2042
		2043	if (error)
		2044	error[0] = 0;
		2045
		2046	fh = open(file_name, O_RDONLY \| O_TEXT, 0644);
		2047
		2048	if (fh == -1) {
		2049	sprintf(line, "Unable to open file \"%s\": ", file_name);
		2050	strlcat(line, strerror(errno), sizeof(line));
		2051	strlcpy(error, line, error_size);
		2052	return NULL;
		2053	}
		2054
		2055	length = (int)lseek(fh, 0, SEEK_END);
		2056	lseek(fh, 0, SEEK_SET);
		2057	buf = (char *)mxml_malloc(length+1);
		2058	if (buf == NULL) {
		2059	close(fh);
		2060	sprintf(line, "Cannot allocate buffer: ");
		2061	strlcat(line, strerror(errno), sizeof(line));
		2062	strlcpy(error, line, error_size);
		2063	return NULL;
		2064	}
		2065
		2066	/* read complete file at once */
		2067	length = (int)read(fh, buf, length);
		2068	buf[length] = 0;
		2069	close(fh);
		2070
		2071	if (mxml_parse_entity(&buf, file_name, error, error_size, error_line) != 0) {
		2072	mxml_free(buf);
		2073	return NULL;
		2074	}
		2075
		2076	root = mxml_parse_buffer(buf, error, error_size, error_line);
		2077
		2078	mxml_free(buf);
		2079
		2080	return root;
		2081	}
		2082
		2083	/------------------------------------------------------------------/
		2084
		2085	/**
		2086	* write complete subtree recursively into file opened with mxml_open_document()
		2087	*/
		2088	int mxml_write_subtree(MXML_WRITER *writer, PMXML_NODE tree, int indent)
		2089	{
		2090	int i;
		2091
		2092	mxml_start_element1(writer, tree->name, indent);
		2093	for (i=0 ; i<tree->n_attributes ; i++)
		2094	if (!mxml_write_attribute(writer, tree->attribute_name+i*MXML_NAME_LENGTH, tree->attribute_value[i]))
		2095	return FALSE;
		2096
		2097	if (tree->value)
		2098	if (!mxml_write_value(writer, tree->value))
		2099	return FALSE;
		2100
		2101	for (i=0 ; i<tree->n_children ; i++)
		2102	if (!mxml_write_subtree(writer, &tree->child[i], (tree->value == NULL) \|\| i > 0))
		2103	return FALSE;
		2104
		2105	return mxml_end_element(writer);
		2106	}
		2107
		2108	/------------------------------------------------------------------/
		2109
		2110	/**
		2111	* write a complete XML tree to a file
		2112	*/
		2113	int mxml_write_tree(const char *file_name, PMXML_NODE tree)
		2114	{
		2115	MXML_WRITER *writer;
		2116	int i;
		2117
		2118	assert(tree);
		2119	writer = mxml_open_file(file_name);
		2120	if (!writer)
		2121	return FALSE;
		2122
		2123	for (i=0 ; i<tree->n_children ; i++)
		2124	if (tree->child[i].node_type == ELEMENT_NODE) /* skip PI and comments */
		2125	if (!mxml_write_subtree(writer, &tree->child[i], TRUE))
		2126	return FALSE;
		2127
		2128	if (!mxml_close_file(writer))
		2129	return FALSE;
		2130
		2131	return TRUE;
		2132	}
		2133
		2134	/------------------------------------------------------------------/
		2135
		2136	PMXML_NODE mxml_clone_tree(PMXML_NODE tree)
		2137	{
		2138	PMXML_NODE clone;
		2139	int i;
		2140
		2141	clone = (PMXML_NODE)calloc(sizeof(MXML_NODE), 1);
		2142
		2143	/* copy name, node_type, n_attributes and n_children */
		2144	memcpy(clone, tree, sizeof(MXML_NODE));
		2145
		2146	clone->value = NULL;
		2147	mxml_replace_node_value(clone, tree->value);
		2148
		2149	clone->attribute_name = NULL;
		2150	clone->attribute_value = NULL;
		2151	for (i=0 ; i<tree->n_attributes ; i++)
		2152	mxml_add_attribute(clone, tree->attribute_name+i*MXML_NAME_LENGTH, tree->attribute_value[i]);
		2153
		2154	clone->child = NULL;
		2155	clone->n_children = 0;
		2156	for (i=0 ; i<tree->n_children ; i++)
		2157	mxml_add_tree(clone, mxml_clone_tree(mxml_subnode(tree, i)));
		2158
		2159	return clone;
		2160	}
		2161
		2162	/------------------------------------------------------------------/
		2163
		2164	/**
		2165	* print XML tree for debugging
		2166	*/
		2167	void mxml_debug_tree(PMXML_NODE tree, int level)
		2168	{
		2169	int i, j;
		2170
		2171	for (i=0 ; i<level ; i++)
		2172	printf(" ");
		2173	printf("Name: %s\n", tree->name);
		2174	for (i=0 ; i<level ; i++)
		2175	printf(" ");
		2176	printf("Valu: %s\n", tree->value);
		2177	for (i=0 ; i<level ; i++)
		2178	printf(" ");
		2179	printf("Type: %d\n", tree->node_type);
		2180	for (i=0 ; i<level ; i++)
		2181	printf(" ");
		2182	printf("Lin1: %d\n", tree->line_number_start);
		2183	for (i=0 ; i<level ; i++)
		2184	printf(" ");
		2185	printf("Lin2: %d\n", tree->line_number_end);
		2186
		2187	for (j=0 ; j<tree->n_attributes ; j++) {
		2188	for (i=0 ; i<level ; i++)
		2189	printf(" ");
		2190	printf("%s: %s\n", tree->attribute_name+j*MXML_NAME_LENGTH,
		2191	tree->attribute_value[j]);
		2192	}
		2193
		2194	for (i=0 ; i<level ; i++)
		2195	printf(" ");
		2196	printf("Addr: %08zX\n", (size_t)tree);
		2197	for (i=0 ; i<level ; i++)
		2198	printf(" ");
		2199	printf("Prnt: %08zX\n", (size_t)tree->parent);
		2200	for (i=0 ; i<level ; i++)
		2201	printf(" ");
		2202	printf("NCld: %d\n", tree->n_children);
		2203
		2204	for (i=0 ; i<tree->n_children ; i++)
		2205	mxml_debug_tree(tree->child+i, level+1);
		2206
		2207	if (level == 0)
		2208	printf("\n");
		2209	}
		2210
		2211	/------------------------------------------------------------------/
		2212
		2213	/**
		2214	* free memory of XML tree, must be called after any
		2215	* mxml_create_root_node() or mxml_parse_file()
		2216	*/
		2217	void mxml_free_tree(PMXML_NODE tree)
		2218	{
		2219	int i;
		2220
		2221	/* first free children recursively */
		2222	for (i=0 ; i<tree->n_children ; i++)
		2223	mxml_free_tree(&tree->child[i]);
		2224	if (tree->n_children)
		2225	mxml_free(tree->child);
		2226
		2227	/* now free dynamic data */
		2228	for (i=0 ; i<tree->n_attributes ; i++)
		2229	mxml_free(tree->attribute_value[i]);
		2230
		2231	if (tree->n_attributes) {
		2232	mxml_free(tree->attribute_name);
		2233	mxml_free(tree->attribute_value);
		2234	}
		2235
		2236	if (tree->value)
		2237	mxml_free(tree->value);
		2238
		2239	/* if we are the root node, free it */
		2240	if (tree->parent == NULL)
		2241	mxml_free(tree);
		2242	}
		2243
		2244	/------------------------------------------------------------------/
		2245
		2246	/*
		2247	void mxml_test()
		2248	{
		2249	char err[256];
		2250	PMXML_NODE tree, tree2, node;
		2251
		2252	tree = mxml_parse_file("c:\\tmp\\test.xml", err, sizeof(err));
		2253	tree2 = mxml_clone_tree(tree);
		2254
		2255	printf("Orig:\n");
		2256	mxml_debug_tree(tree, 0);
		2257
		2258	printf("\nClone:\n");
		2259	mxml_debug_tree(tree2, 0);
		2260
		2261	printf("\nCombined:\n");
		2262	node = mxml_find_node(tree2, "cddb");
		2263	mxml_add_tree(tree, node);
		2264	mxml_debug_tree(tree, 0);
		2265
		2266	mxml_free_tree(tree);
		2267	}
		2268	*/
		2269
		2270	/------------------------------------------------------------------/
		2271	/**
		2272	mxml_basename deletes any prefix ending with the last slash '/' character
		2273	present in path. mxml_dirname deletes the filename portion, beginning with
		2274	the last slash '/' character to the end of path. Followings are examples
		2275	from these functions
		2276
		2277	path dirname basename
		2278	"/" "/" ""
		2279	"." "." "."
		2280	"" "" ""
		2281	"/test.txt" "/" "test.txt"
		2282	"path/to/test.txt" "path/to" "test.txt"
		2283	"test.txt "." "test.txt"
		2284
		2285	Under Windows, '\\' and ':' are recognized ad separator too.
		2286	*/
		2287
		2288	void mxml_basename(char *path)
		2289	{
		2290	char str[FILENAME_MAX];
		2291	char *p;
		2292	char *name;
		2293
		2294	if (path) {
		2295	strcpy(str, path);
		2296	p = str;
		2297	name = str;
		2298	while (1) {
		2299	if (*p == 0)
		2300	break;
		2301	if (*p == '/'
		2302	#ifdef _MSC_VER
		2303	\|\| p == ':' \|\| p == '\\'
		2304	#endif
		2305	)
		2306	name = p + 1;
		2307	p++;
		2308	}
		2309	strcpy(path, name);
		2310	}
		2311
		2312	return;
		2313	}
		2314
		2315	void mxml_dirname(char *path)
		2316	{
		2317	char *p;
		2318	#ifdef _MSC_VER
		2319	char *pv;
		2320	#endif
		2321
		2322	if (!path \|\| strlen(path) == 0)
		2323	return;
		2324
		2325	p = strrchr(path, '/');
		2326	#ifdef _MSC_VER
		2327	pv = strrchr(path, ':');
		2328	if (pv > p)
		2329	p = pv;
		2330	pv = strrchr(path, '\\');
		2331	if (pv > p)
		2332	p = pv;
		2333	#endif
		2334
		2335	if (p == 0) /* current directory */
		2336	strcpy(path, ".");
		2337	else if (p == path) /* root directory */
		2338	sprintf(path, "%c", *p);
		2339	else
		2340	*p = 0;
		2341
		2342	return;
		2343	}
		2344
		2345	/------------------------------------------------------------------/
		2346
		2347	/**
		2348	* Retieve node at a certain line number
		2349	*/
		2350	PMXML_NODE mxml_get_node_at_line(PMXML_NODE tree, int line_number)
		2351	{
		2352	int i;
		2353	PMXML_NODE pn;
		2354
		2355	if (tree->line_number_start == line_number)
		2356	return tree;
		2357
		2358	for (i=0 ; i<tree->n_children ; i++) {
		2359	pn = mxml_get_node_at_line(&tree->child[i], line_number);
		2360	if (pn)
		2361	return pn;
		2362	}
		2363
		2364	return NULL;
		2365	}
		2366

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(root)//cvi/instr/DRS/mxml.c – Rev 198