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att
GitHub Repository: att/ast
 Path: blob/master/src/lib/libdss/dss-count.h
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/***********************************************************************

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*                                                                      *

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*               This software is part of the ast package               *

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*          Copyright (c) 2002-2011 AT&T Intellectual Property          *

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*                      and is licensed under the                       *

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*                 Eclipse Public License, Version 1.0                  *

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*                    by AT&T Intellectual Property                     *

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*                                                                      *

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*                A copy of the License is available at                 *

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*          http://www.eclipse.org/org/documents/epl-v10.html           *

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*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *

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*                                                                      *

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*              Information and Software Systems Research               *

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*                            AT&T Research                             *

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*                           Florham Park NJ                            *

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*                                                                      *

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*                 Glenn Fowler <[email protected]>                  *

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*                                                                      *

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***********************************************************************/

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#pragma prototyped

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/*

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 * count query

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 */

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static const char count_usage[] = 

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"[-1ls5P?\n@(#)$Id: dss count query (AT&T Research) 2002-12-09 $\n]"

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USAGE_LICENSE

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"[+PLUGIN?\findex\f]"

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"[+DESCRIPTION?The \bdss\b \bcount\b query prints the parent expression"

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"	selected/queried record counts. The output line is preceded by"

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"	\alabel:\a if the \alabel\a operand is specified.]"

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"\n"

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"\n [ label ]\n"

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"\n";

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static int

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count_beg(Cx_t* cx, Cxexpr_t* expr, void* data, Cxdisc_t* disc)

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{

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	char**	argv = (char**)data;

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	int	errors = error_info.errors;

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	for (;;)

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	{

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		switch (optget(argv, count_usage))

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		{

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		case '?':

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			if (disc->errorf)

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				(*disc->errorf)(NiL, disc, ERROR_USAGE|4, "%s", opt_info.arg);

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			continue;

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		case ':':

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			if (disc->errorf)

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				(*disc->errorf)(NiL, disc, 2, "%s", opt_info.arg);

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			continue;

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		}

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		break;

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	}

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	if (error_info.errors > errors)

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		return -1;

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	argv += opt_info.index;

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	if ((expr->data = *argv++) && *argv)

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	{

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		if (disc->errorf)

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			(*disc->errorf)(NiL, disc, ERROR_USAGE|4, "%s", optusage(NiL));

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		return -1;

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	}

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	return 0;

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}

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static int

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count_end(Cx_t* cx, Cxexpr_t* expr, void* data, Cxdisc_t* disc)

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{

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	if (expr->data)

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		sfprintf(expr->op, "%s: ", (char*)expr->data);

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	sfprintf(expr->op, "%I*u/%I*u\n", sizeof(expr->parent->selected), expr == expr->parent->fail ? (expr->parent->queried - expr->parent->selected) : expr->parent->selected, sizeof(expr->parent->queried), expr->parent->queried);

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	return 0;

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}

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#define QUERY_count \

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	{ \

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		"count", \

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		"print parent expression record counts", \

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		CXH, \

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		count_beg, \

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		0, \

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		0, \

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		count_end \

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	}

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