Aegisub/core/mythes.hxx

104 lines
3.3 KiB
C++

/*
* Copyright 2003 Kevin B. Hendricks, Stratford, Ontario, Canada
* And Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. All modifications to the source code must be clearly marked as
* such. Binary redistributions based on modified source code
* must be clearly marked as modified versions in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY KEVIN B. HENDRICKS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* KEVIN B. HENDRICKS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _MYTHES_HXX_
#define _MYTHES_HXX_
// some maximum sizes for buffers
#define MAX_WD_LEN 200
#define MAX_LN_LEN 16384
// a meaning with definition, count of synonyms and synonym list
struct mentry {
char* defn;
int count;
char** psyns;
};
class MyThes
{
int nw; /* number of entries in thesaurus */
char** list; /* stores word list */
unsigned int* offst; /* stores offset list */
char * encoding; /* stores text encoding; */
FILE *pdfile;
// disallow copy-constructor and assignment-operator for now
MyThes();
MyThes(const MyThes &);
MyThes & operator = (const MyThes &);
public:
MyThes(const char* idxpath, const char* datpath);
~MyThes();
// lookup text in index and return number of meanings
// each meaning entry has a defintion, synonym count and pointer
// when complete return the *original* meaning entry and count via
// CleanUpAfterLookup to properly handle memory deallocation
int Lookup(const char * pText, int len, mentry** pme);
void CleanUpAfterLookup(mentry** pme, int nmean);
char* get_th_encoding();
private:
// Open index and dat files and load list array
int thInitialize (const char* indxpath, const char* datpath);
// internal close and cleanup dat and idx files
int thCleanup ();
// read a text line (\n terminated) stripping off line terminator
int readLine(FILE * pf, char * buf, int nc);
// binary search on null terminated character strings
int binsearch(char * wrd, char* list[], int nlst);
};
#endif