<?php
function get_phrases($sentence) {
$inQuotes = false;
$quoteChars = ['"', "'"];
$separators = [' '];
$phrase = null;
$res = [];
for ($i = 0; $i < strlen($sentence); $i++) {
$t = $sentence[$i];
$isOpenQuote = !$inQuotes && in_array($t, $quoteChars);
$isCloseQuote = $t == $inQuotes;
$isLast = $i+1 == strlen($sentence);
$isSeparator = !$inQuotes && in_array($t, $separators);
if (!$inQuotes && $isOpenQuote) {
// Opening quote
$inQuotes = $t;
continue;
} elseif ($inQuotes && $isCloseQuote) {
// Closing quote
$inQuotes = false;
}
if (!$isOpenQuote && !$isCloseQuote && !$isSeparator) {
$phrase .= $t;
}
if ($isSeparator || $isLast) {
//yield $phrase; // or add to an array in pre-5.5
$res[] = $phrase;
$phrase = null;
}
}
return $res;
}
function assertEquals($expected, $actual) {
if ($actual !== $expected) {
echo sprintf("Assertion failed: %s does not equal %s\n",
print_r($actual, true),
print_r($expected, true)
);
} else {
echo "Assertion passed\n";
}
}
assertEquals(['Hello', 'world'], get_phrases('Hello world'));
assertEquals(['I', 'am', 'a', 'foo bar'], get_phrases("I am a 'foo bar'"));
preferences:
43.52 ms | 402 KiB | 5 Q