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/**
* VOTATTRIBUTE.C -- (Private) Methods to manage XML attributes.
*
* @file votAttribute.c
* @author Mike Fitzpatrick and Eric Timmermann
* @date 8/03/09
*
* @brief (Private) Methods to manage XML attributes.
*/
#define _GNU_SOURCE
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "votParseP.h"
extern char *strcasestr();
/**
* vot_attrSet -- Set/Create an attributes (private method).
*
* @brief Set/Create an attributes (private method)
* @fn status = vot_attrSet (AttrBlock *ablock, char *name, char *value)
*
* @param ablock An AttrBlock to insert these attributes.
* @param name A string that hold the name of an attribute.
* @param value A string that hold the value of an attribute.
* @return The status of the request. 1 Success, 0=FAIL.
*
* @warning If an attribute has no name/value, this will not create it.
*/
int
vot_attrSet (AttrBlock *ablock, char *name, char *value)
{
char *name_m = NULL;
int value_found = 0, value_existing = 0;
AttrList *attr = (ablock ? ablock->attributes : (AttrList *) NULL);
if (name == NULL)
return (0);
name_m = strdup (name);
/* Check for namespace qualifiers on the attribute.
*/
if ((name_m[0] && strchr(name_m, (int)':')) || strcmp("xmlns", name_m) == 0)
value_found = 1;
/* Check for an 'xtype' attribute in the v1.1+ spec.
*/
if (name_m[0] && strcmp("xtype", name_m) == 0)
value_found = 1;
if (ablock->req && strcasestr (ablock->req, name_m) != NULL)
value_found = 1;
else if (ablock->opt && strcasestr (ablock->opt, name_m) != NULL)
value_found = 1;
if (!value_found) {
#ifdef USE_STRICT
fprintf (stderr, "Error: '%s' not a valid Attribute.\n", name);
return (0);
#else
return (1);
#endif
} else {
while (attr != NULL) {
if (name_m[0] && strcasecmp (attr->name, name_m) == 0) {
strncpy (attr->value, value, min (strlen (value), SZ_ATTRVAL));
value_existing = 1;
}
attr = attr->next;
}
if (!value_existing) {
attr = (AttrList *) calloc (1, sizeof(AttrList));
if (ablock->attributes == NULL) {
attr->next = NULL;
strncpy (attr->value, value, min (strlen (value), SZ_ATTRVAL));
strcpy (attr->name, name_m);
} else {
attr = (AttrList *) calloc (1, sizeof(AttrList));
attr->next = ablock->attributes;
strncpy (attr->value, value, min (strlen (value), SZ_ATTRVAL));
strcpy (attr->name, name_m);
}
ablock->attributes = attr;
}
}
if (name_m != NULL)
free (name_m);
return (1);
}
/**
* vot_attrGet -- Get an attribute's value (private method).
*
* @brief Get an attribute's value (private method)
* @fn char *vot_attrGet (AttrBlock *ablock, char *name)
*
* @param *ablock An AttrBlock to insert these attributes
* @param *name A string that hold the name of an attribute
* @return Value of the attribute or NULL
*/
char *
vot_attrGet (AttrBlock *ablock, char *name)
{
char *value;
AttrList *attr = (ablock ? ablock->attributes : (AttrList *) NULL);
while (attr != NULL) {
if (strcasecmp (attr->name, name) == 0) {
value = (char *) calloc (SZ_ATTRNAME, strlen(attr->value)+1);
strncpy (value, attr->value, strlen (attr->value));
if (value && value[0])
return (value);
else
return (NULL);
}
attr = attr->next;
}
return (NULL);
}
/**
* vot_attrXML -- Get the attributes for an XML tag (private method).
*
* @brief Get the attributes for an XML tag (private method)
* @fn char *vot_attrXML (AttrBlock *ablock)
*
* @param *ablock An AttrBlock to insert these attributes
* @return A string containing the attributes for an XML tag
*/
char *
vot_attrXML (AttrBlock *ablock)
{
char *out = (char *) calloc (SZ_XMLTAG, sizeof (char));
AttrList *attr = (ablock ? ablock->attributes : (AttrList *) NULL);
while (attr != NULL) {
/* Privately used attribute. It is not valid. */
if (strcasecmp (attr->name, "NCOLS") != 0 &&
strcasecmp (attr->name, "NROWS") != 0) {
if ((attr->value && attr->value[0]) ||
(strcasecmp (attr->name, "value") == 0)) {
strcat (out, " ");
strcat (out, attr->name);
strcat (out, "=\"");
strcat (out, attr->value);
strcat (out, "\"");
}
}
attr = attr->next;
}
return (out);
}
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