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/*-------------------------------------------------------------------------
S T R I N G D I C T
Implementation file for a simple list based string dictionary
of name value pairs.
Mark Koennecke, April 1997
Copyright:
Labor fuer Neutronenstreuung
Paul Scherrer Institut
CH-5423 Villigen-PSI
The authors hereby grant permission to use, copy, modify, distribute,
and license this software and its documentation for any purpose, provided
that existing copyright notices are retained in all copies and that this
notice is included verbatim in any distributions. No written agreement,
license, or royalty fee is required for any of the authorized uses.
Modifications to this software may be copyrighted by their authors
and need not follow the licensing terms described here, provided that
the new terms are clearly indicated on the first page of each file where
they apply.
IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY
FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY
DERIVATIVES THEREOF, EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE
IS PROVIDED ON AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE
NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.
----------------------------------------------------------------------------*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "fortify.h"
#include "lld.h"
#include "stringdict.h"
/*-------------------------------------------------------------------------*/
typedef struct __StringDict {
int iList;
int iTraverse;
} StringDict;
typedef struct {
char *name;
char *value;
} SDE, *pSDE;
/*-------------------------------------------------------------------------*/
pStringDict CreateStringDict(void)
{
pStringDict pNew = NULL;
pNew = (pStringDict)malloc(sizeof(StringDict));
if(!pNew)
{
return NULL;
}
pNew->iList = LLDcreate(sizeof(SDE));
if(pNew->iList < 0)
{
free(pNew);
return NULL;
}
pNew->iTraverse = 0;
return pNew;
}
/*------------------------------------------------------------------------*/
void DeleteStringDict(pStringDict self)
{
int iRet;
SDE sVal;
assert(self);
iRet = LLDnodePtr2First(self->iList);
while(iRet != 0)
{
LLDnodeDataTo(self->iList,&sVal);
if(sVal.name)
{
free(sVal.name);
}
if(sVal.value)
{
free(sVal.value);
}
iRet = LLDnodePtr2Next(self->iList);
}
LLDdelete(self->iList);
free(self);
}
/*-------------------------------------------------------------------------*/
int StringDictAddPair(pStringDict self, char *name, char *value)
{
SDE sVal;
assert(self);
sVal.name = NULL;
sVal.value = NULL;
sVal.name = strdup(name);
sVal.value = strdup(value);
LLDnodeAppendFrom(self->iList,&sVal);
return 1;
}
/*---------------------------------------------------------------------------*/
int StringDictExists(pStringDict self, char *name)
{
SDE sVal;
int iRet;
iRet = LLDnodePtr2First(self->iList);
while(iRet != 0)
{
LLDnodeDataTo(self->iList,&sVal);
if(strcmp(sVal.name,name) == 0)
{
return 1;
}
iRet = LLDnodePtr2Next(self->iList);
}
return 0;
}
/*--------------------------------------------------------------------------*/
int StringDictUpdate(pStringDict self, char *name, char *value)
{
SDE sVal;
int iRet;
iRet = LLDnodePtr2First(self->iList);
while(iRet != 0)
{
LLDnodeDataTo(self->iList,&sVal);
if(strcmp(sVal.name,name) == 0)
{
if(sVal.value)
{
free(sVal.value);
}
sVal.value = strdup(value);
LLDnodeDataFrom(self->iList,&sVal);
return 1;
}
iRet = LLDnodePtr2Next(self->iList);
}
return 0;
}
/*--------------------------------------------------------------------------*/
int StringDictGet(pStringDict self, char *name, char *pResult, int iLen)
{
SDE sVal;
int iRet;
iRet = LLDnodePtr2First(self->iList);
while(iRet != 0)
{
LLDnodeDataTo(self->iList,&sVal);
if(strcmp(sVal.name,name) == 0)
{
if(pResult == NULL)
{
return strlen(sVal.value);
}
else
{
strncpy(pResult,sVal.value,iLen);
return 1;
}
}
iRet = LLDnodePtr2Next(self->iList);
}
return 0;
}
/*------------------------------------------------------------------------*/
int StringDictDelete(pStringDict self, char *name)
{
SDE sVal;
int iRet;
iRet = LLDnodePtr2First(self->iList);
while(iRet != 0)
{
LLDnodeDataTo(self->iList,&sVal);
if(strcmp(sVal.name,name) == 0)
{
if(sVal.name)
{
free(sVal.name);
}
if(sVal.value)
{
free(sVal.value);
}
LLDnodeDelete(self->iList);
return 1;
}
iRet = LLDnodePtr2Next(self->iList);
}
return 0;
}
/*------------------------------------------------------------------------*/
int StringDictGetAsNumber(pStringDict self, char *name, float *fVal)
{
char pBueffel[80];
int iRet;
SDE sVal;
assert(self);
iRet = StringDictGet(self,name,pBueffel,79);
if(!iRet)
{
return iRet;
}
iRet = sscanf(pBueffel,"%f",fVal);
if(iRet != 1)
{
return 0;
}
return 1;
}
/*-------------------------------------------------------------------------*/
const char *StringDictGetNext(pStringDict self, char *pValue, int iValLen)
{
int iRet;
SDE sVal;
assert(self);
if(self->iTraverse)
{
iRet = LLDnodePtr2Next(self->iList);
if(iRet == 0) /* exhausted */
{
self->iTraverse = 0;
return NULL;
}
else
{
LLDnodeDataTo(self->iList,&sVal);
strncpy(pValue,sVal.value,iValLen);
return sVal.name;
}
}
else /* start a new one */
{
iRet = LLDnodePtr2First(self->iList);
if(iRet == 0)
{
return NULL;
}
else
{
self->iTraverse = 1;
LLDnodeDataTo(self->iList,&sVal);
strncpy(pValue,sVal.value,iValLen);
return sVal.name;
}
}
return NULL;
}
/*-------------------------------------------------------------------------*/
void StringDictKillScan(pStringDict self)
{
assert(self);
self->iTraverse = 0;
}