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//
// $Id: main.cpp,v 1.7 1999/08/15 01:57:54 amos Exp $
//
// Main body implementation
//
// Jan Borsodi <amos@abn.hibu.no>
// Created on: <14-Jul-1999 19:14:44 amos>
//
#include <qapplication.h>
#include "qaregexp.hpp"
#include "qaregexperror.hpp"
#include <qstring.h>
#include <qfile.h>
#include <qtextstream.h>
#include <unistd.h>
int main( int, char ** )
{
// Will not match the wanted subexpression
try
{
QaRegExp reg( "([a-zA-Z]+)[ \t]+([a-z]+)(::)([a-zA-Z]+)" );
if ( reg.match( "blah aaaa:::bbbb", 2 ) )
{
QaRegExpMatch m = reg.matches();
int i = 0;
for ( QStringList::ConstIterator it = m.toString().begin(); it != m.toString().end(); ++it, ++i )
{
qDebug( "%d# = \"%s\", [%d-%d]", i, (*it).ascii(), m[i].start(), m[i].end() );
}
}
else
qDebug( "No match found" );
}
catch ( QaRegExpError &e )
{
qDebug( e.error() );
}
// Matches multiple times against a regexp and extracts the given subexpression each time.
try
{
QaRegExp reg( "(([a-zA-Z0-9.]+)@([a-zA-Z0-9.]+))[ \t]*,?[ \t]*" );
int matches;
if ( ( matches = reg.matchMultiple( "amos@abn.hibu.no, amos@agurk, a2b@d.2, lot of bullshit", 1 ) ) > 0 )
{
qDebug( "Found %d matches", matches );
QaRegExpMatch m = reg.matches();
int i = 0;
for ( QStringList::ConstIterator it = m.toString().begin(); it != m.toString().end(); ++it, ++i )
{
qDebug( "\"%s\", [%d-%d]", (*it).ascii(), m[i].start(), m[i].end() );
}
}
}
catch ( QaRegExpError &e )
{
qDebug( e.error() );
}
// This example splits up the using a html like tag (<>) for delimiter.
try
{
QaRegExp reg( "<[^>]*>" );
reg.split( "first value<b>2. in line<href=\"/\">last to go" );
QaRegExpMatch m = reg.matches();
int i = 0;
for ( QStringList::ConstIterator it = m.toString().begin(); it != m.toString().end(); ++it, ++i )
{
qDebug( "\"%s\", [%d-%d]", (*it).ascii(), m[i].start(), m[i].end() );
}
}
catch ( QaRegExpError &e )
{
qDebug( e.error() );
}
// Matches against a typical assignment, variable = value.
try
{
QaRegExp reg( "([a-zA-Z]+)[ \t]*=[ \t]*([a-zA-Z]+)" );
if ( reg.match( "RegTest = SomeValue" ) )
{
QaRegExpMatch m = reg.matches();
int i = 0;
for ( QStringList::ConstIterator it = m.toString().begin(); it != m.toString().end(); ++it, ++i )
{
qDebug( "%d# = \"%s\", [%d-%d]", i, (*it).ascii(), m[i].start(), m[i].end() );
}
}
}
catch ( QaRegExpError &e )
{
qDebug( e.error() );
}
// A bigger example, reads out the user, nice, system and idle ticks from /proc/stat
// Supports SMP ( 2 or more processors).
// The output is cpu <user> <nice> <system> <idle>
// if you have more than one processor the output is also
// cpu number # <user> <nice> <system> <idle>
// for each processor
try
{
int i = 0;
while ( i < 10 )
{
QFile f( "/proc/stat" );
if ( f.open( IO_ReadOnly ) )
{
QTextStream s( &f );
QaRegExp reg( "(cpu[0-9]*)[ \t]+([0-9]+)[ \t]+([0-9]+)[ \t]+([0-9]+)[ \t]+([0-9]+)" );
bool ok = true;
while ( ok )
{
QString tmp = s.readLine();
if ( reg.match( tmp ) )
{
QaRegExpMatch m = reg.matches();
QStringList l = m.toString();
QString cpuid = l[1];
int user = l[2].toInt();
int nice = l[3].toInt();
int system = l[4].toInt();
int idle = l[5].toInt();
if ( cpuid == "cpu" )
qDebug( "total cpu %d, %d, %d, %d", user, nice, system, idle );
else
{
QaRegExp cpureg( "cpu([0-9]+)" );
if ( cpureg.match( cpuid, 1 ) )
{
int id = cpureg.matchString( 1 ).toInt();
qDebug( "cpu number %d, %d, %d, %d, %d", id, user, nice, system, idle );
}
}
}
else
ok = false;
}
sleep( 2 );
}
else
qDebug( "Error opening file /dev/stat" );
f.close();
i++;
}
}
catch ( QaRegExpError &e )
{
qDebug( e.error() );
}
return 0;
}
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