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/* MODULE                                                       HTAssoc.c
**          ASSOCIATION LIST FOR STORING NAME-VALUE PAIRS.
**          NAMES NOT CASE SENSITIVE, AND ONLY COMMON LENGTH
**          IS CHECKED (allows abbreviations; well, length is
**          taken from lookup-up name, so if table contains
**          a shorter abbrev it is not found).
** AUTHORS:
**      AL      Ari Luotonen    luotonen@dxcern.cern.ch
**
** HISTORY:
**
**
** BUGS:
**
**
*/



#include <string.h>

#include "HTAAUtil.h"
#include "HTAssoc.h"
#include "HTString.h"


PUBLIC HTAssocList *HTAssocList_new NOARGS
{
    return HTList_new();
}


PUBLIC void HTAssocList_delete ARGS1(HTAssocList *, alist)
{
    if (alist) {
        HTAssocList *cur = alist;
        HTAssoc *assoc;
        while (NULL != (assoc = (HTAssoc*)HTList_nextObject(cur))) {
            if (assoc->name) free(assoc->name);
            if (assoc->value) free(assoc->value);
            free(assoc);
        }
        HTList_delete(alist);
    }
}


PUBLIC void HTAssocList_add ARGS3(HTAssocList *,        alist,
                                  CONST char *,         name,
                                  CONST char *,         value)
{
    HTAssoc *assoc;

    if (alist) {
        if (!(assoc = (HTAssoc*)malloc(sizeof(HTAssoc))))
            outofmem(__FILE__, "HTAssoc_add");
        assoc->name = NULL;
        assoc->value = NULL;

        if (name) StrAllocCopy(assoc->name, name);
        if (value) StrAllocCopy(assoc->value, value);
        HTList_addObject(alist, (void*)assoc);
    }
    else if (TRACE) fprintf(stderr, "HTAssoc_add: ERROR: assoc list NULL!!\n");
}


PUBLIC char *HTAssocList_lookup ARGS2(HTAssocList *,    alist,
                                      CONST char *,     name)
{
    HTAssocList *cur = alist;
    HTAssoc *assoc;

    while (NULL != (assoc = (HTAssoc*)HTList_nextObject(cur))) {
        if (!strncasecomp(assoc->name, name, strlen(name)))
            return assoc->value;
    }
    return NULL;
}