XMLCallStart

Syntax

int XMLCallStart(struct XMLdata *ptr, char *name,int atnum,char **atname,char **atval, char *buf,int sze);

Header

base/rxml.h

Library

rxml

Description

The XMLCallStart function forces a call to the user supplied function for interpreting the opening or start tags.

The data structure associated with the XML decoder is pointed to by the argument ptr.

The zero terminated string pointed to by the argument name gives the tag name.

The number of decoded attributes associated with the tag is given by the argument atnum. The name of each attribute is stored as a zero terminated string pointed to by the elements of the array atname. The associated value of each attribute is stored as a zero terminated string pointed to by the elements of the array atval.

The full text enclosed within the tag markers is stored in the buffer pointed to by the argument buf, and the size of this buffer is given by the argument sze.

Returns

Returns zero on success. On error, (-1) is returned.

Errors

On error (-1) is returned.

Example

Source Code: XMLCallStart.c

/* XMLCallStart.c
   ==============
   Author: R.J.Barnes
 Copyright (c) 2012 The Johns Hopkins University/Applied Physics Laboratory

This file is part of the Radar Software Toolkit (RST).

RST 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 3 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, see <https://www.gnu.org/licenses/>.

Modifications:




#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "rxml.h"

int start(char *name,int atnum,char **atname,char **atval,char *buf,
          int sze,void *data) {
  int a;
  FILE *fp=NULL;

  if (data !=NULL) fp=(FILE *) data;
  else fp=stderr;

  fprintf(fp,"'nStart Tag:%s'n",name);

  for (a=0;a<atnum;a++) { 
    fprintf(fp,"%s",atname[a]);
    if (atval[a] !=0) fprintf(fp,"=%s'n",atval[a]);
    else fprintf(fp,"'n");
  } 
  return 0;
}

int end(char *name,char *buf,
          int sze,void *data) {

  FILE *fp=NULL;
  if (data !=NULL) fp=(FILE *) data;
  else fp=stderr;
  fprintf(fp,"'nEnd Tag:%s'n",name);
  return 0;
}


int text(char *buf,
          int sze,void *data) {

  FILE *fp=NULL;
  if (data !=NULL) fp=(FILE *) data;
  else fp=stderr;
  fprintf(fp,"Body:");
  fwrite(buf,sze,1,fp);
  return 0;
}



int main(int argc,char *argv[]) {
 
  FILE *outp=stdout;
  char lbuf[256];

  char *atname[]={"width","height"};
  char *atval[]={"100","200"};

  struct XMLdata *xmldata;
 


  xmldata=XMLMake();

  XMLSetStart(xmldata,start,outp);
  XMLSetEnd(xmldata,end,outp);
  XMLSetText(xmldata,text,outp);

  sprintf(lbuf,"dummy contents.");

  XMLCallStart(xmldata,"table",2,atname,atval,"table",strlen("table"));

  XMLDecode(xmldata,lbuf,strlen(lbuf));

  XMLCallEnd(xmldata,"table","/table",strlen("/table"));

  XMLFree(xmldata);

  return 0;

}