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C/C++ Users Group Library 1996 July
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C-C++ Users Group Library July 1996.iso
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vol_400
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424_02
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ED-157
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rec_chgcas.c
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C/C++ Source or Header
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1993-09-10
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/*
* Copyright (C) 1992 by Rush Record (rhr@clio.rice.edu)
*
* This file is part of ED.
*
* ED 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.
*
* ED 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 ED
* (see the file COPYING). If not, write to the Free Software Foundation, 675
* Mass Ave, Cambridge, MA 02139, USA.
*/
#include "opsys.h"
#include "ctyp_dec.h"
#include "rec.h"
#include "window.h"
#include "ed_dec.h"
/******************************************************************************\
|Routine: rec_chgcas
|Callby: change_case
|Purpose: Changes the case of a portion of a record.
|Arguments:
| rec is the record affected.
| byt1 is the first byte to change.
| byt2 is the last byte to change.
| table is the case-changing table, or NULL if they want capitalization.
\******************************************************************************/
void rec_chgcas(rec,byt1,byt2,table)
register rec_ptr rec;
register Int byt1,byt2;
register Uchar *table;
{
register Uchar *p,*q;
if(table)
for(p = (Uchar *)(rec->data + byt1),q = (Uchar *)(rec->data + byt2);p != q;p++)
*p = table[*p];
else
{
rec->data[byt1] = toupper(rec->data[byt1]);
for(p = (Uchar *)(rec->data + byt1 + 1),q = (Uchar *)(rec->data + byt2);p != q;p++)
*p = (isspace(*(p - 1)) || ispunct(*(p - 1)))? toupper(*p) : tolower(*p);
}
}