XML parser

Author: bar@bar.mysql.r18.ru

include/Makefile.am

@@ -16,7 +16,7 @@
 # MA 02111-1307, USA
 
 BUILT_SOURCES =		mysql_version.h m_ctype.h my_config.h
-pkginclude_HEADERS =	dbug.h m_string.h my_sys.h my_list.h \
+pkginclude_HEADERS =	dbug.h m_string.h my_sys.h my_list.h my_xml.h \
 			mysql.h mysql_com.h mysqld_error.h mysql_embed.h \
 		  	my_semaphore.h my_pthread.h my_no_pthread.h raid.h \
 			errmsg.h my_global.h my_net.h my_alloc.h \

include/my_xml.h

@@ -0,0 +1,59 @@
+/* Copyright (C) 2000 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  */
+
+
+#ifndef _my_xml_h
+#define _my_xml_h
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+
+#define MY_XML_OK	0
+#define MY_XML_ERROR	1
+
+typedef struct xml_stack_st
+{
+  char errstr[128];
+  char attr[128];
+  char *attrend;
+  const char *beg;
+  const char *cur;
+  const char *end;
+  int  (*enter)(struct xml_stack_st *st,const char *val, uint len);
+  int  (*value)(struct xml_stack_st *st,const char *val, uint len);
+  int  (*leave)(struct xml_stack_st *st,const char *val, uint len);
+} MY_XML_PARSER;
+
+void       my_xml_parser_create(MY_XML_PARSER *st);
+void       my_xml_parser_free(MY_XML_PARSER *st);
+int        my_xml_parse(MY_XML_PARSER *st,const char *str, uint len);
+
+void       my_xml_set_value_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *, const char *, uint len));
+void       my_xml_set_enter_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *, const char *, uint len));
+void       my_xml_set_leave_handler(MY_XML_PARSER *st, int (*)(MY_XML_PARSER *, const char *, uint len));
+
+uint       my_xml_error_pos(MY_XML_PARSER *st);
+uint       my_xml_error_lineno(MY_XML_PARSER *st);
+
+const char *my_xml_error_string(MY_XML_PARSER *st);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif /* _my_xml_h */

mysys/Makefile.am

@@ -50,7 +50,7 @@ libmysys_a_SOURCES =	my_init.c my_getwd.c mf_getdate.c\
 			my_getopt.c my_mkdir.c \
 			default.c my_compress.c checksum.c raid.cc \
 			my_net.c my_semaphore.c my_port.c \
-			my_vsnprintf.c charset.c my_bitmap.c my_bit.c md5.c \
+			my_vsnprintf.c charset.c xml.c my_bitmap.c my_bit.c md5.c \
 			my_gethostbyname.c rijndael.c my_aes.c sha1.c \
 			my_handler.c
 EXTRA_DIST =		thr_alarm.c thr_lock.c my_pthread.c my_thr_init.c \
@@ -104,6 +104,9 @@ test_dir: test_dir.c $(LIBRARIES)
 test_charset$(EXEEXT): test_charset.c $(LIBRARIES)
 	$(LINK) $(FLAGS) -DMAIN $(srcdir)/test_charset.c $(LDADD) $(LIBS)
 
+test_xml$(EXEEXT): test_xml.c $(LIBRARIES)
+	$(LINK) $(FLAGS) -DMAIN $(srcdir)/test_xml.c $(LDADD) $(LIBS)
+
 charset2html$(EXEEXT): charset2html.c $(LIBRARIES)
 	$(LINK) $(FLAGS) -DMAIN $(srcdir)/charset2html.c $(LDADD) $(LIBS)
 

mysys/test_xml

@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include "my_xml.h"
+
+static void mstr(char *str,const char *src,uint l1,uint l2)
+{
+  l1 = l1<l2 ? l1 : l2;
+  memcpy(str,src,l1);
+  str[l1]='\0';
+}
+
+static int dstr(MY_XML_PARSER *st,const char *attr, uint len)
+{
+  char str[1024];
+  
+  mstr(str,attr,len,sizeof(str)-1);
+  printf("VALUE '%s'\n",str);
+  return MY_XML_OK;
+}
+
+static int bstr(MY_XML_PARSER *st,const char *attr, uint len)
+{
+  char str[1024];
+  
+  mstr(str,attr,len,sizeof(str)-1);
+  printf("ENTER %s\n",str);
+  return MY_XML_OK;
+}
+
+
+static int estr(MY_XML_PARSER *st,const char *attr, uint len)
+{
+  char str[1024];
+  
+  mstr(str,attr,len,sizeof(str)-1);
+  printf("LEAVE %s\n",str);
+  return MY_XML_OK;
+}
+
+static void usage(const char *prog)
+{
+  printf("Usage:\n");
+  printf("%s xmlfile\n",prog);
+}
+
+int main(int ac, char **av)
+{
+  char str[1024*64]="";
+  const char *fn;
+  int  f;
+  uint len;
+  MY_XML_PARSER p;
+  
+  if (ac<2)
+  {
+    usage(av[0]);
+    return 0;
+  }
+  
+  fn=av[1]?av[1]:"test.xml";
+  if ((f=open(fn,O_RDONLY))<0)
+  {
+    fprintf(stderr,"Err '%s'\n",fn);
+    return 1;
+  }
+  
+  len=read(f,str,sizeof(str)-1);
+  str[len]='\0';
+  
+  my_xml_parser_create(&p);
+  
+  my_xml_set_enter_handler(&p,bstr);
+  my_xml_set_value_handler(&p,dstr);
+  my_xml_set_leave_handler(&p,estr);
+  
+  if (MY_XML_OK!=(f=my_xml_parse(&p,str,len)))
+  {
+    printf("ERROR at line %d pos %d '%s'\n",
+      my_xml_error_lineno(&p)+1,
+      my_xml_error_pos(&p),
+      my_xml_error_string(&p));
+  }
+  
+  my_xml_parser_free(&p);
+  
+  return 0;
+}