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/*-------------------------------------------------------------------------
Copyright 1996,2005 CNRS (VERIMAG)
--------------------------------------------------------------------------------
This program 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 of the License, or
(at your option) any later version.
This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
--------------------------------------------------------------------------------
module : errors.h
date : 25/11/1996
auteurs : Pascal Raymond
----------------------------------------------------------------------------
nature : Gestion des erreurs et des messages (sur stderr) :
----------------------------------------------------------------------------
-------------------------------------------------------------------------*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include "errors.h"
/********************************************************************
Error, Warning, Verbose
*********************************************************************/
static int VERBOSE = 0;
static int PIPE = 0;
static char TOOL_NAME_DFLT[] = " ";
static const char* TOOL_NAME = TOOL_NAME_DFLT;
void set_verbose_mode(){ VERBOSE = 1; }
void set_pipe_mode(){ PIPE = 1; }
void set_verbose_mode(int i){ VERBOSE = i; }
void set_errors_tool_name(const char* tn){ TOOL_NAME = tn;}
int Verbose(const char* fmt ...){
va_list args;
va_start(args,fmt);
if(VERBOSE){
if ( PIPE && (fmt[0] == '\r')){
fprintf(stderr, " \n^R" );
vfprintf(stderr, &fmt[1], args);
} else if ( PIPE && (fmt[0] == '\b' )){
fprintf(stderr, "\n^B" );
vfprintf(stderr, &fmt[1], args);
} else {
vfprintf(stderr,fmt,args);
}
fflush(stderr);
}
return VERBOSE;
}
int Verbose(int i, const char* fmt ...){
va_list args;
va_start(args,fmt);
if(i <= VERBOSE){
if ( PIPE && (fmt[0] == '\r')){
fprintf(stderr, " \n^R" );
vfprintf(stderr, &fmt[1], args);
} else if ( PIPE && (fmt[0] == '\b' )){
fprintf(stderr, "\n^B" );
vfprintf(stderr, &fmt[1], args);
} else {
vfprintf(stderr,fmt,args);
}
fflush(stderr);
}
return VERBOSE;
}
int Verbose(){
return VERBOSE;
}
/********************************************************************
A "turning wheel" which makes a quarter cycle each "step" time
teh proc is called (only in verbose mode)
*********************************************************************/
static char WHEEL[] = { '|', '/', '-', '\\' };
static int WHEEL_INDEX = 0;
static int WHEEL_STEP = 1;
int VerboseWheel(int step){
if((VERBOSE) && isatty(2)){
if(WHEEL_STEP >= step){
WHEEL_STEP = 0;
fprintf(stderr,"%c\b", WHEEL[WHEEL_INDEX]);
fflush(stderr);
WHEEL_INDEX = (WHEEL_INDEX+1)%4;
} else {
WHEEL_STEP++;
}
}
return VERBOSE;
}
void IError(const char* fmt ...){
va_list args;
va_start(args,fmt);
fprintf(stderr,"Sorry, Internal Error :\n");
vfprintf(stderr,fmt,args);
fprintf(stderr,"\n");
exit(1);
}
void Error(const char* fmt ...){
va_list args;
va_start(args,fmt);
fprintf(stderr,"%s Error :\n", TOOL_NAME);
vfprintf(stderr,fmt,args);
fprintf(stderr,"\n");
exit(1);
}
void Warning(const char* fmt ...){
va_list args;
va_start(args,fmt);
fprintf(stderr,"%s Warning :\n", TOOL_NAME);
vfprintf(stderr,fmt,args);
fprintf(stderr,"\n");
}
int AskYesNo(const char* fmt ...){
va_list args;
va_start(args,fmt);
char prompt[1024];
vsprintf(&prompt[0],fmt,args);
char* b;
size_t bsz;
//char c;
int r = 0;
int s = 1;
do {
fprintf(stderr, "%s (y/n) ? ", prompt);
fflush(stdout);
b=NULL;
bsz=0;
int bl = getline(&b, &bsz, stdin);
//remove ending "spaces" (thus newline)
char* p = &b[bl];
do {
p--;
} while ((p != b) && (isspace(*p)));
*(++p) = '\0';
//printf("\n\"%s\"\n%d\n\"", b, bl);
r = -1;
if(! strcmp(b, "y")) r = 1;
else if (! strcmp(b, "n")) r = 0;
else fprintf(stderr, "please answer y or n\n");
} while ((s != 1) || (r == -1));
return r;
}
static int nb_global_error = 0;
void GErrorRecover(){
if(nb_global_error){
fprintf(stderr,"*** %d Errors stop\n", nb_global_error);
exit(1);
}
}
int GErrors(){
return nb_global_error;
}
void GError(const char* fmt ...){
va_list args;
va_start(args,fmt);
vfprintf(stderr,fmt,args);
nb_global_error++;
}
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