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<?php
//author: alex temal, doug treadwell
//date: 2009-12-29
//url: http://www.aiyosolutions.com/dtnet/instruction_checker.php.txt
$instructions = file_get_contents('instructions.txt');
$lines = explode("\n", $instructions);
function line_is_section_header($line) {
if ( ucwords($line) == $line && substr(trim($line), -1) == ':' ) {
return true;
} else {
return false;
}
}
function get_section($line) {
return substr(strtolower(trim($line)), 0, -1);
}
function test_out($text) {
print $text . '<br />';
}
function line_is_blank($line) {
if ( trim($line) == '' ) {
return true;
} else {
return false;
}
}
function line_is_not_blank($line) {
return !line_is_blank($line);
}
$equipment = array();
$materials = array();
foreach ( $lines as $line ) {
++$line_number;
if ( line_is_section_header($line) ) {
$section = get_section($line);
test_out('Identified section as ' . $section);
} else if ( line_is_not_blank($line) ) { // is instruction
test_out('Checking line ' . $line_number);
if ( preg_match('/([0-9]+\.[0-9]*)(.*)/', $line, $matches) ) {
list(/*don't need*/,$instruction_number, $instruction) = $matches;
} else {
$instruction_number = '';
$instruction = $line;
}
if ( $section == 'equipment' ) {
test_out('Adding ' . $instruction . ' to ' . $section);
$equipment[] = $instruction;
} else if ( $section == 'materials' ) {
test_out('Adding ' . $instruction . ' to ' . $section);
$materials[] = $instruction;
} else if ( $section == 'instructions' ) {
test_out('Processing instruction " ' . $instruction . '"');
$has_equipment = false;
foreach ( $equipment as $tool ) {
if ( strpos($instruction, $tool) !== false ) {
$has_equipment = true;
break;
}
}
$has_materials = false;
foreach ( $materials as $material ) {
if ( strpos($instruction, $material) !== false ) {
$has_materials = true;
break;
}
}
if ( !$has_equipment ) {
print ' No equipment specified on instruction ' . $instruction_number . '<br />';
}
if ( !$has_materials ) {
print ' No materials specified on instruction ' . $instruction_number . '<br />';
}
if ( $has_equipment && $has_materials ) {
print ' Instruction is ok.';
}
}
}
}
?>
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