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Readability refactoring
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This commit is contained in:
Timothy Warren 2021-03-04 12:03:51 -05:00
parent 3c64af224e
commit b642ff5c59
9 changed files with 116 additions and 100 deletions
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196
src/Editor.php
View File

@ -12,7 +12,7 @@ use Aviat\Kilo\Tokens\PHP8;
class Editor {
use Traits\MagicProperties;
private string $ab = '';
private string $outputBuffer = '';
protected int $cursorX = 0;
protected int $cursorY = 0;
@ -189,7 +189,7 @@ class Editor {
protected function insertRow(int $at, string $s, bool $updateSyntax = TRUE): void
{
if ($at < 0 || $at > $this->numRows)
if ($at > $this->numRows)
{
return;
}
@ -523,103 +523,111 @@ class Editor {
for ($y = 0; $y < $this->screenRows; $y++)
{
$filerow = $y + $this->rowOffset;
if ($filerow >= $this->numRows)
($filerow >= $this->numRows)
? $this->drawPlaceholderRow($y)
: $this->drawRow($filerow);
$this->outputBuffer .= ANSI::CLEAR_LINE;
$this->outputBuffer .= "\r\n";
}
}
protected function drawRow(int $rowIdx): void
{
$len = $this->rows[$rowIdx]->rsize - $this->colOffset;
if ($len < 0)
{
$len = 0;
}
if ($len > $this->screenCols)
{
$len = $this->screenCols;
}
$chars = substr($this->rows[$rowIdx]->render, $this->colOffset, (int)$len);
$hl = array_slice($this->rows[$rowIdx]->hl, $this->colOffset, (int)$len);
$currentColor = -1;
for ($i = 0; $i < $len; $i++)
{
$ch = $chars[$i];
// Handle 'non-printable' characters
if (is_ctrl($ch))
{
if ($this->numRows === 0 && $y === (int)($this->screenRows / 2))
$sym = (ord($ch) <= 26)
? chr(ord('@') + ord($ch))
: '?';
$this->outputBuffer .= ANSI::color(Color::INVERT);
$this->outputBuffer .= $sym;
$this->outputBuffer .= ANSI::RESET_TEXT;
if ($currentColor !== -1)
{
$welcome = sprintf('PHP Kilo editor -- version %s', KILO_VERSION);
$welcomelen = strlen($welcome);
if ($welcomelen > $this->screenCols)
{
$welcomelen = $this->screenCols;
}
$padding = ($this->screenCols - $welcomelen) / 2;
if ($padding > 0)
{
$this->ab .= '~';
$padding--;
}
for ($i = 0; $i < $padding; $i++)
{
$this->ab .= ' ';
}
$this->ab .= substr($welcome, 0, $welcomelen);
$this->outputBuffer .= ANSI::color($currentColor);
}
else
}
else if ($hl[$i] === Highlight::NORMAL)
{
if ($currentColor !== -1)
{
$this->ab .= '~';
$this->outputBuffer .= ANSI::RESET_TEXT;
$this->outputBuffer .= ANSI::color(Color::FG_WHITE);
$currentColor = -1;
}
$this->outputBuffer .= $ch;
}
else
{
$len = $this->rows[$filerow]->rsize - $this->colOffset;
if ($len < 0)
$color = syntax_to_color($hl[$i]);
if ($color !== $currentColor)
{
$len = 0;
}
if ($len > $this->screenCols)
{
$len = $this->screenCols;
$currentColor = $color;
$this->outputBuffer .= ANSI::RESET_TEXT;
$this->outputBuffer .= ANSI::color($color);
}
$this->outputBuffer .= $ch;
}
}
$c = substr($this->rows[$filerow]->render, $this->colOffset, $len);
$hl = array_slice($this->rows[$filerow]->hl, $this->colOffset, $len);
$this->outputBuffer .= ANSI::RESET_TEXT;
$this->outputBuffer .= ANSI::color(Color::FG_WHITE);
}
$currentColor = -1;
for ($i = 0; $i < $len; $i++)
{
// Handle 'non-printable' characters
if (is_ctrl($c[$i]))
{
$sym = (ord($c[$i]) <= 26)
? chr(ord('@') + ord($c[$i]))
: '?';
$this->ab .= ANSI::color(Color::INVERT);
$this->ab .= $sym;
$this->ab .= ANSI::RESET_TEXT;
if ($currentColor !== -1)
{
$this->ab .= ANSI::color($currentColor);
}
}
else if ($hl[$i] === Highlight::NORMAL)
{
if ($currentColor !== -1)
{
$this->ab .= ANSI::RESET_TEXT;
$this->ab .= ANSI::color(Color::FG_WHITE);
$currentColor = -1;
}
$this->ab .= $c[$i];
}
else
{
$color = syntax_to_color($hl[$i]);
if ($color !== $currentColor)
{
$currentColor = $color;
$this->ab .= ANSI::RESET_TEXT;
$this->ab .= ANSI::color($color);
}
$this->ab .= $c[$i];
}
}
$this->ab .= ANSI::RESET_TEXT;
$this->ab .= ANSI::color(Color::FG_WHITE);
protected function drawPlaceholderRow(int $y): void
{
if ($this->numRows === 0 && $y === (int)($this->screenRows / 2))
{
$welcome = sprintf('PHP Kilo editor -- version %s', KILO_VERSION);
$welcomelen = strlen($welcome);
if ($welcomelen > $this->screenCols)
{
$welcomelen = $this->screenCols;
}
$this->ab .= ANSI::CLEAR_LINE;
$this->ab .= "\r\n";
$padding = ($this->screenCols - $welcomelen) / 2;
if ($padding > 0)
{
$this->outputBuffer .= '~';
$padding--;
}
for ($i = 0; $i < $padding; $i++)
{
$this->outputBuffer .= ' ';
}
$this->outputBuffer .= substr($welcome, 0, $welcomelen);
}
else
{
$this->outputBuffer .= '~';
}
}
protected function drawStatusBar(): void
{
$this->ab .= ANSI::color(Color::INVERT);
$this->outputBuffer .= ANSI::color(Color::INVERT);
$statusFilename = $this->filename !== '' ? $this->filename : '[No Name]';
$syntaxType = ($this->syntax !== NULL) ? $this->syntax->filetype : 'no ft';
@ -632,25 +640,25 @@ class Editor {
{
$len = $this->screenCols;
}
$this->ab .= substr($status, 0, $len);
$this->outputBuffer .= substr($status, 0, $len);
while ($len < $this->screenCols)
{
if ($this->screenCols - $len === $rlen)
{
$this->ab .= substr($rstatus, 0, $rlen);
$this->outputBuffer .= substr($rstatus, 0, $rlen);
break;
}
$this->ab .= ' ';
$this->outputBuffer .= ' ';
$len++;
}
$this->ab .= ANSI::RESET_TEXT;
$this->ab .= "\r\n";
$this->outputBuffer .= ANSI::RESET_TEXT;
$this->outputBuffer .= "\r\n";
}
protected function drawMessageBar(): void
{
$this->ab .= ANSI::CLEAR_LINE;
$this->outputBuffer .= ANSI::CLEAR_LINE;
$len = strlen($this->statusMsg);
if ($len > $this->screenCols)
{
@ -659,7 +667,7 @@ class Editor {
if ($len > 0 && (time() - $this->statusMsgTime) < 5)
{
$this->ab .= substr($this->statusMsg, 0, $len);
$this->outputBuffer .= substr($this->statusMsg, 0, $len);
}
}
@ -667,24 +675,24 @@ class Editor {
{
$this->scroll();
$this->ab = '';
$this->outputBuffer = '';
$this->ab .= ANSI::HIDE_CURSOR;
$this->ab .= ANSI::RESET_CURSOR;
$this->outputBuffer .= ANSI::HIDE_CURSOR;
$this->outputBuffer .= ANSI::RESET_CURSOR;
$this->drawRows();
$this->drawStatusBar();
$this->drawMessageBar();
// Specify the current cursor position
$this->ab .= ANSI::moveCursor(
$this->outputBuffer .= ANSI::moveCursor(
($this->cursorY - $this->rowOffset) + 1,
($this->renderX - $this->colOffset) + 1
);
$this->ab .= ANSI::SHOW_CURSOR;
$this->outputBuffer .= ANSI::SHOW_CURSOR;
echo $this->ab;
echo $this->outputBuffer;
}
public function setStatusMessage(string $fmt, mixed ...$args): void
@ -904,7 +912,7 @@ class Editor {
protected function refreshSyntax(): void
{
// Update the syntax highlighting for all the rows of the file
// array_walk($this->rows, static fn (Row $row) => $row->updateSyntax());
array_walk($this->rows, static fn (Row $row) => $row->updateSyntax());
}
private function refreshPHPSyntax(): void

1
src/Enum/Color.php
View File

@ -6,6 +6,7 @@ use Aviat\Kilo\Traits;
/**
* ANSI Color escape sequences
* @enum
*/
class Color {
use Traits\ConstList;

3
src/Enum/Highlight.php
View File

@ -4,6 +4,9 @@ namespace Aviat\Kilo\Enum;
use Aviat\Kilo\Traits;
/**
* @enum
*/
class Highlight {
use Traits\ConstList;

3
src/Enum/KeyCode.php
View File

@ -7,6 +7,7 @@ use function Aviat\Kilo\ctrl_key;
/**
* 'Raw' input from stdin
* @enum
*/
class KeyCode {
use Traits\ConstList;
@ -35,7 +36,7 @@ class KeyCode {
* ctrl + letter combo
*
* @param string $char
* @return string
* @return string|null
*/
public static function CTRL(string $char): ?string
{

1
src/Enum/KeyType.php
View File

@ -6,6 +6,7 @@ use Aviat\Kilo\Traits;
/**
* Constants representing various control keys
* @enum
*/
class KeyType {
use Traits\ConstList;

4
src/Event.php
View File

@ -14,9 +14,9 @@ class Event {
public const QUIT_ATTEMPT = 'QUIT_ATTEMPT';
// Mapping of events to handlers
private static $subscribeMap = [];
private static array $subscribeMap = [];
public static function fire(string $eventName, $value): void
public static function fire(string $eventName, mixed $value): void
{
static::validateEvent($eventName);

1
src/Row.php
View File

@ -8,6 +8,7 @@ use Aviat\Kilo\Enum\KeyCode;
/**
* @property-read int $size
* @property-read int $rsize
* @property-read string $chars
*/
class Row {
use Traits\MagicProperties;

2
src/Traits/MagicProperties.php
View File

@ -5,7 +5,7 @@ namespace Aviat\Kilo\Traits;
trait MagicProperties {
abstract public function __get(string $name);
public function __set(string $name, $value)
public function __set(string $name, mixed $value): void
{
if (property_exists($this, $name))
{

5
src/functions.php
View File

@ -289,10 +289,10 @@ function syntax_to_color(int $hl): int
* Replace tabs with the specified number of spaces.
*
* @param string $str
* @param int|null $number
* @param int $number
* @return string
*/
function tabs_to_spaces(string $str, ?int $number = KILO_TAB_STOP): string
function tabs_to_spaces(string $str, int $number = KILO_TAB_STOP): string
{
return str_replace(KeyCode::TAB, str_repeat(KeyCode::SPACE, $number), $str);
}
@ -629,6 +629,7 @@ function php_token_to_highlight(int $token): int
// Invalid syntax
T_BAD_CHARACTER => Highlight::INVALID,
default => Highlight::NORMAL,
};
}