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/*** check.c **********************************************************************
**
** This file is part of BibTool.
** It is distributed under the GNU General Public License.
** See the file COPYING for details.
**
** (c) 2019-2020 Gerd Neugebauer
**
** Net: gene@gerd-neugebauer.de
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2, or (at your option)
** any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**-----------------------------------------------------------------------------
** Description:
**
**
******************************************************************************/
#include <bibtool/general.h>
#include <bibtool/rsc.h>
#include <bibtool/error.h>
#include <bibtool/check.h>
#include <bibtool/wordlist.h>
#include <bibtool/sbuffer.h>
#include "config.h"
/*****************************************************************************/
/* Internal Programs */
/*===========================================================================*/
#ifdef __STDC__
#define _ARG(A) A
#else
#define _ARG(A) ()
#endif
static bool do_checks _ARG((DB db,Record rec));
/*****************************************************************************/
/* External Programs and Variables */
/*===========================================================================*/
/*---------------------------------------------------------------------------*/
static WordList unique_fields = WordNULL; /* */
bool need_sort_key = false;
/*-----------------------------------------------------------------------------
** Function: add_unique_field()
** Type: void
** Purpose: A unique constraint for a field.
**
** Arguments:
** key the key to check
** Returns: nothing
**___________________________________________________ */
void add_unique_field(key) /* */
Symbol key; /* */
{ StringBuffer *sb = sbopen(); /* */
sbputs((char*)SymbolValue(key), sb); /* */
key = symbol(lower((String)sbflush(sb))); /* */
add_word(key, &unique_fields); /* */
(void)sbclose(sb); /* */
if (key == sym_sortkey) { need_sort_key = true; }/* */
} /*------------------------*/
/*-----------------------------------------------------------------------------
** Function: apply_checks()
** Type: void
** Purpose:
**
** Arguments:
** db
** Returns: nothing
**___________________________________________________ */
void apply_checks(db) /* */
DB db; /* */
{ /* */
if (rsc_double_check || unique_fields) /* Maybe look for doubles */
{ db_forall(db, do_checks); } /* or apply unique checks */
} /*------------------------*/
#define equal_records(R1,R2) RecordSortkey(R1) == RecordSortkey(R2)
/*-----------------------------------------------------------------------------
** Function*: do_checks()
** Purpose: Check whether the given record has a double.
**
** Arguments:
** db the database
** rec the record
** Returns: |false|
**___________________________________________________ */
static bool do_checks(db,rec) /* */
DB db; /* */
Record rec; /* */
{ register Record prev; /* */
register Record rec2; /* */
WordList wl; /* */
Symbol k1 = *RecordHeap(rec); /* */
if (k1 == NO_SYMBOL) k1 = sym_empty; /* */
/* */
for (rec2 = PrevRecord(rec); /* */
rec2 != RecordNULL; /* */
rec2 = prev) /* */
{ Symbol k2 = *RecordHeap(rec2); /* */
if (k2 == NO_SYMBOL) k2 = sym_empty; /* */
/* */
prev = PrevRecord(rec2); /* */
/* */
if (rsc_double_check && equal_records(rec,rec2))/* */
{ /* */
if (!rsc_quiet) /* */
{ ErrPrint("*** BibTool WARNING"); /* */
err_location(RecordLineno(rec), /* */
RecordSource(rec), /* */
": Possible double entry discovered to");/* */
err_location(RecordLineno(rec2), /* */
RecordSource(rec2), NULL); /* */
ErrPrintF(" `%s'\n", (char*)k2); /* */
/* */
DebugPrintF3("***\t%s =?= %s\n", /* */
(char*)SymbolValue(k2), /* */
(char*)SymbolValue(k1)); /* */
DebugPrintF2("***\tsort key: %s\n", /* */
(char*)SymbolValue(RecordSortkey(rec))); /* */
} /* */
if (rsc_del_dbl) /* */
{ delete_record(db,rec); } /* */
else /* */
{ SetRecordDELETED(rec); } /* */
} /* */
/* */
for (wl = unique_fields; wl; wl = NextWord(wl))/* */
{ String key = ThisWord(wl); /* */
Symbol val; /* */
switch (*(char*)key) /* */
{ case '$': /* */
if (key == sym_key) /* */
{ if (k1 == NO_SYMBOL || k1 != k2) /* */
{ continue; } /* */
val = k1; /* */
break; /* */
} else if (key == sym_sortkey) /* */
{ val = RecordSortkey(rec); /* */
if (val == NO_SYMBOL || /* */
val != RecordSortkey(rec2)) /* */
{ continue; } /* */
break; /* */
} /* */
default: /* */
val = record_get(rec, ThisWord(wl)); /* */
if (val == NO_SYMBOL || /* */
val != record_get(rec2, ThisWord(wl)))/* */
{ continue; } /* */
} /* */
/* */
ErrPrint("*** BibTool WARNING"); /* */
err_location(RecordLineno(rec2), /* */
RecordSource(rec2), " and"); /* */
err_location(RecordLineno(rec), /* */
RecordSource(rec), NULL); /* */
ErrPrintF2(": field `%s' is not unique: %s\n",/* */
(char*)ThisWord(wl), (char*)val); /* */
} /* */
} /* */
/* */
return false; /* */
} /*------------------------*/
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