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/*
* Motif
*
* Copyright (c) 1987-2012, The Open Group. All rights reserved.
*
* These libraries and programs are free software; you can
* redistribute them and/or modify them under the terms of the GNU
* Lesser General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* These libraries and programs are distributed in the hope that
* they will be useful, but WITHOUT ANY WARRANTY; without even the
* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with these librararies and programs; if not, write
* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301 USA
*
*/
/*
* HISTORY
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef REV_INFO
#ifndef lint
static char rcsid[] = "$XConsortium: XmStringObso.c /main/6 1995/09/19 23:13:52 cde-sun $"
#endif
#endif
#include "XmStringI.h"
#include "XmI.h"
/*
* as close as we can come to Latin1Create without knowing the charset of
* Latin1. This imposes the semantic of \n meaning separator.
*/
XmString
XmStringLtoRCreate(
char *text,
XmStringTag tag )
{
char *start, *end;
Boolean done;
XmString string;
_XmProcessLock();
if (!text) {
_XmProcessUnlock();
return (NULL);
}
start = text;
done = FALSE;
/* Set the direction once only at the beginning. */
string = XmStringDirectionCreate(XmSTRING_DIRECTION_L_TO_R);
while ( ! done) /* loop thu local copy */
{ /* looking for \n */
end = start;
while ((*end != '\0') && (*end != '\n')) end++;
if (*end == '\0')
done = TRUE; /* we are at the end */
/* Don't convert empty string unless it's an initial newline. */
/* Done so StringHeight has clue to size of empty lines. */
if ((start != end) || (start == text))
string = XmStringConcatAndFree (string,
_XmStringNCreate(start, tag,
end - start));
/* Make a separator if this isn't the last segment. */
if (!done) {
string = XmStringConcatAndFree(string, XmStringSeparatorCreate());
start = ++end; /* start at next char */
}
}
_XmProcessUnlock();
return (string);
}
XmString
XmStringCreateLtoR(
char *text,
XmStringTag tag )
{
return (XmStringLtoRCreate (text, tag));
}
/*
* build an external TCS 'segment', just a high level create
*/
XmString
XmStringSegmentCreate(
char *text,
XmStringTag tag,
#if NeedWidePrototypes
int direction,
int separator )
#else
XmStringDirection direction,
Boolean separator )
#endif /* NeedWidePrototypes */
{
XmString result;
result = XmStringConcatAndFree (XmStringDirectionCreate (direction),
XmStringCreate (text, tag));
if (separator)
result = XmStringConcatAndFree (result, XmStringSeparatorCreate ());
return result;
}
/*
* Convenience routine to create an XmString from a NULL terminated string.
*/
XmString
XmStringCreateSimple(
char *text )
{
return (XmStringCreate(text, XmSTRING_DEFAULT_CHARSET));
}
/*
* concat two external strings. Only concat a component at a time
* so that we always wind up with a meaningful string
*/
XmString
XmStringNConcat(XmString first,
XmString second,
int n )
{
XmString tmp, ret_val;
_XmProcessLock();
tmp = XmStringConcat(first, second);
ret_val = XmStringNCopy(tmp, XmStringLength(first) + n);
XmStringFree(tmp);
_XmProcessUnlock();
return(ret_val);
}
/*
* Copy a compound string, such that the equivalent ASN.1 form
* has <= n bytes. Only copy a component at a time
* so that we always wind up with a meaningful string
*/
XmString
XmStringNCopy(
XmString str,
int n )
{
unsigned char *tmp;
unsigned int len;
XmString ret_val;
_XmProcessLock();
len = XmCvtXmStringToByteStream(str, &tmp);
if (n >= len) /* No need to truncate */
{
ret_val = XmStringCopy(str);
}
else /* Truncate and convert */
{
tmp = _XmStringTruncateASN1(tmp, n);
ret_val = XmCvtByteStreamToXmString(tmp);
}
XtFree((char *)tmp);
_XmProcessUnlock();
return(ret_val);
}
/* Compare ASN.1 form of strings. */
Boolean
XmStringByteCompare(
XmString a1,
XmString b1 )
{
unsigned char *a;
unsigned char *b;
unsigned short a_length, b_length;
Boolean ret_val;
_XmProcessLock();
if ((a1 == NULL) && (b1 == NULL)) {
_XmProcessUnlock();
return (TRUE);
}
if ((a1 == NULL) || (b1 == NULL)) {
_XmProcessUnlock();
return (FALSE);
}
a_length = XmCvtXmStringToByteStream(a1, &a);
b_length = XmCvtXmStringToByteStream(b1, &b);
if ((a_length != b_length) || (memcmp(a, b, a_length) != 0))
ret_val = FALSE;
else ret_val = TRUE;
XtFree((char *)a);
XtFree((char *)b);
_XmProcessUnlock();
return(ret_val);
}
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