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      1 /*---------------------------------------------------------------------------*
      2  *  lstring.h  *
      3  *                                                                           *
      4  *  Copyright 2007, 2008 Nuance Communciations, Inc.                               *
      5  *                                                                           *
      6  *  Licensed under the Apache License, Version 2.0 (the 'License');          *
      7  *  you may not use this file except in compliance with the License.         *
      8  *                                                                           *
      9  *  You may obtain a copy of the License at                                  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0                           *
     11  *                                                                           *
     12  *  Unless required by applicable law or agreed to in writing, software      *
     13  *  distributed under the License is distributed on an 'AS IS' BASIS,        *
     14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
     15  *  See the License for the specific language governing permissions and      *
     16  *  limitations under the License.                                           *
     17  *                                                                           *
     18  *---------------------------------------------------------------------------*/
     19 
     20 #ifndef __LSTRING_H
     21 #define __LSTRING_H
     22 
     23 
     24 
     25 #include "ESR_ReturnCode.h"
     26 #include "ESR_SharedPrefix.h"
     27 #include "ptypes.h"
     28 
     29 /**
     30  * @addtogroup LStringModule LString API functions
     31  *
     32  * @{
     33  */
     34 
     35 /**
     36  * LString interface.
     37  *
     38  * @see list of functions used to operate on @ref LStringModule "LString" objects
     39  */
     40 typedef struct LString_t
     41 {
     42   /**
     43    * Appends text to LString.
     44    *
     45    * @param self LString handle
     46    * @param value Value to append.
     47    */
     48   ESR_ReturnCode(*append)(struct LString_t* self, const LCHAR* value);
     49   /**
     50    * Clears the string contents.
     51    *
     52    * @param self LString handle
     53    */
     54   ESR_ReturnCode(*reset)(struct LString_t* self);
     55   /**
     56    * Destroys LString in favour of static LCHAR* string.
     57    * The LString object should not be used past this point.
     58    *
     59    * @param self LString handle
     60    * @param result Resulting LCHAR*
     61    */
     62   ESR_ReturnCode(*toLCHAR)(struct LString_t* self, LCHAR** result);
     63   /**
     64    * Destroys LString object.
     65    *
     66    * @param self LString handle
     67    */
     68   ESR_ReturnCode(*destroy)(struct LString_t* self);
     69 }
     70 LString;
     71 
     72 
     73 
     74 /**
     75  * Creates new LString.
     76  *
     77  * @param self LString handle
     78  */
     79 ESR_SHARED_API ESR_ReturnCode LStringCreate(LString** self);
     80 /**
     81  * Appends text to LString.
     82  *
     83  * @param self LString handle
     84  * @param value Value to append.
     85  */
     86 ESR_SHARED_API ESR_ReturnCode LStringAppend(LString* self, const LCHAR* value);
     87 /**
     88  * Clears the string contents.
     89  *
     90  * @param self LString handle
     91  */
     92 ESR_SHARED_API ESR_ReturnCode LStringReset(LString* self);
     93 /**
     94  * Destroys LString in favour of static LCHAR* string.
     95  * The LString object should not be used past this point.
     96  *
     97  * @param self LString handle
     98  * @param result Resulting LCHAR*
     99  */
    100 ESR_SHARED_API ESR_ReturnCode LStringToLCHAR(LString* self, LCHAR** result);
    101 /**
    102  * Destroys LString object.
    103  *
    104  * @param self LString handle
    105  */
    106 ESR_SHARED_API ESR_ReturnCode LStringDestroy(LString* self);
    107 
    108 /**
    109  * @}
    110  */
    111 
    112 
    113 #endif /* __LSTRING_H */
    114