linux-dvb-apps.git - linux-dvb-apps Debian packaging

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Diffstat (limited to 'util/scan/dvb-t/de-Loerrach')

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1 files changed, 0 insertions, 19 deletions

/* $Id: expr.c,v 1.5 2004/01/18 06:54:08 reinelt Exp $ * * expr ('y*') functions * This is only a workaround to make the Evaluator usable until * it's fully integrated into lcd4linux. * * Copyright 2004 Michael Reinelt <reinelt@eunet.at> * * This file is part of LCD4Linux. * * LCD4Linux 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. * * LCD4Linux 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. * * * $Log: expr.c,v $ * Revision 1.5 2004/01/18 06:54:08 reinelt * bug in expr.c fixed (thanks to Xavier) * some progress with /proc/stat parsing * * Revision 1.4 2004/01/14 11:33:00 reinelt * new plugin 'uname' which does what it's called * text widget nearly finished * first results displayed on MatrixOrbital * * Revision 1.3 2004/01/12 03:51:01 reinelt * evaluating the 'Variables' section in the config file * * Revision 1.2 2004/01/09 04:16:06 reinelt * added 'section' argument to cfg_get(), but NULLed it on all calls by now. * * Revision 1.1 2004/01/05 11:57:38 reinelt * added %y tokens to make the Evaluator useable * */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #include <ctype.h> #include <errno.h> #define IN_EXPR #include "expr.h" #include "plugin.h" #include "debug.h" #include "cfg.h" int Expr(int index, char string[EXPR_TXT_LEN], double *val) { RESULT result = {0, 0.0, NULL}; static int errs[EXPRS+1]; char *expression; char yn[4]; if (index < 0 || index > EXPRS) return -1; if (errs[index]) return -1; sprintf(yn, "y%d", index); expression = cfg_get_raw(NULL, yn, NULL); if (!expression || !*expression) { error("Empty expression for 'y%d'", index); errs[index]++; return -1; } Eval(expression, &result); strcpy(string, R2S(&result)); debug("%s: <%s> = '%s'", yn, expression, string); if (isdigit(*string)) { double max, min; *val = atof(string); sprintf(yn, "Max_y%d", index); max = atof(cfg_get(NULL, yn, "100")); sprintf(yn, "Min_y%d", index); min = atof(cfg_get(NULL, yn, "0")); if (max != min) *val = (*val - min)/(max - min); } DelResult (&result); return 0; }


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