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/****************************************************************
* *
* Copyright 2001, 2013 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "gtm_string.h"
#include "compiler.h"
#include "show_source_line.h"
#include "gtmmsg.h"
#ifdef UNICODE_SUPPORTED
#include "gtm_utf8.h"
#endif
GBLREF short int source_name_len, source_line;
GBLREF char source_file_name[];
GBLREF unsigned char *source_buffer;
GBLREF bool dec_nofac;
GBLREF boolean_t run_time;
error_def(ERR_SRCLIN);
error_def(ERR_SRCLOC);
error_def(ERR_SRCLNNTDSP);
error_def(ERR_ARROWNTDSP);
#define MAXLINESIZEFORDISPLAY 1023
void show_source_line(boolean_t warn)
{
char *b, *b_top, *c, *c_top, *buf;
char source_line_buff[MAX_SRCLINE + SIZEOF(ARROW)];
ssize_t buflen;
int chlen, chwidth;
unsigned int ch, line_chwidth = 0;
boolean_t unable_to_complete_arrow = FALSE;
mstr msgstr;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
buf = source_line_buff;
buflen = SIZEOF(source_line_buff);
b_top = buf + buflen - STR_LIT_LEN(ARROW) - 1; /* allow room for arrow and string terminator */
for (c = (char *)source_buffer, b = buf, c_top = c + TREF(last_source_column) - 1; c < c_top;)
{
if ('\t' == *c)
{
if ((b + 1) > b_top)
{
unable_to_complete_arrow = TRUE;
break;
}
*b++ = *c++;
}
else if (!gtm_utf8_mode || (ASCII_MAX >= *(uchar_ptr_t)c))
{
if ((b + 1) > b_top)
{
unable_to_complete_arrow = TRUE;
break;
}
*b++ = ' ';
c++;
}
# ifdef UNICODE_SUPPORTED
else
{
chlen = (int)(UTF8_MBTOWC(c, c_top, ch) - (uchar_ptr_t)c);
if (WEOF != ch && (0 < (chwidth = UTF8_WCWIDTH(ch)))) /* assignment */
{
if ((b + chwidth) > b_top)
{
unable_to_complete_arrow = TRUE;
break;
}
memset(b, ' ', chwidth);
b += chwidth;
}
c += chlen;
}
# endif
}
if (unable_to_complete_arrow)
{
msgstr.addr = buf;
msgstr.len = buflen;
dec_nofac = TRUE;
gtm_getmsg(ERR_ARROWNTDSP, &msgstr);
dec_nofac = FALSE;
} else
{
memcpy(b, ARROW, STR_LIT_LEN(ARROW));
b += STR_LIT_LEN(ARROW);
*b = '\0';
}
if (warn)
{
for (c = (char *)source_buffer; c < (char *)source_buffer + STRLEN((char *)source_buffer) - 1; )
{
if ('\t' == *c)
{
line_chwidth++;
c++;
}
else if (!gtm_utf8_mode || (ASCII_MAX >= *(uchar_ptr_t)c))
{
line_chwidth++;
c++;
} else
{
# ifdef UNICODE_SUPPORTED /* funky positioning makes VMS compiler happy */
chlen = (int)(UTF8_MBTOWC(c, (char *)source_buffer + STRLEN((char *)source_buffer) - 1, ch)
- (uchar_ptr_t)c);
if ((WEOF != ch) && 0 < (chwidth = UTF8_WCWIDTH(ch)))
line_chwidth += chwidth;
c += chlen;
# endif
}
}
dec_nofac = TRUE;
if (MAXLINESIZEFORDISPLAY > line_chwidth)
if (unable_to_complete_arrow)
dec_err(VARLSTCNT(6) ERR_SRCLIN, 4, LEN_AND_STR((char *)source_buffer), msgstr.len, msgstr.addr);
else
dec_err(VARLSTCNT(6) ERR_SRCLIN, 4, LEN_AND_STR((char *)source_buffer), b - buf, buf);
else
dec_err(VARLSTCNT(2) ERR_SRCLNNTDSP, 1, MAXLINESIZEFORDISPLAY);
if (!run_time)
dec_err(VARLSTCNT(6) ERR_SRCLOC, 4, TREF(last_source_column), source_line,
source_name_len, source_file_name);
dec_nofac = FALSE;
}
}
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