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console : manage the Ctrl+C to clean the line if needed

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git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@4241 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
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Dominique Fournier
2018-06-13 13:22:49 +00:00
parent 1efb0c395d
commit 57739c624b
1 changed files with 17 additions and 3 deletions
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20
console.php
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@@ -8,6 +8,11 @@
* When using this class, you must use the $console::echo method and not * When using this class, you must use the $console::echo method and not
* display directely on screen * display directely on screen
* Like readline, but all in PHP * Like readline, but all in PHP
* Manage the historical of the provided commands
* Allow the user to use arrow keys and the shortcuts Ctrl+arrow, Ctrl+L,
* Ctrl+U, Ctrl+W
* To not allow the stop of the program by Ctrl+C, you can add
* exec ("stty intr ^J");
*/ */
class console class console
{ {
@@ -29,7 +34,7 @@ private $usleep = 0;
/** List of non printable chars in decimal. The non printable chars are not /** List of non printable chars in decimal. The non printable chars are not
* displayed but are correctely captured * displayed but are correctely captured
*/ */
private $nonWriteableChar = array (1, 2, 4, 6, 8, 9, 16, 18, private $nonWriteableChar = array (1, 2, 3, 4, 6, 8, 9, 16, 18,
20, 21, 22, 23, 24, 25, 27, 20, 21, 22, 23, 24, 25, 27,
127); 127);
/* The history list in an array /* The history list in an array
@@ -69,6 +74,8 @@ private $usleep = 0;
// Set the terminal to return the value each time a key is pressed. // Set the terminal to return the value each time a key is pressed.
// Do not display anything, so we don't see the characters when the user is // Do not display anything, so we don't see the characters when the user is
// deleting. // deleting.
// 'intr ^J' allow to redefine the interruption from Ctrl+C to Ctrl+J. It
// allow to manage the Ctrl+C key to clean the entry
exec ("stty -echo -icanon min 1 time 0"); exec ("stty -echo -icanon min 1 time 0");
$this->updateTerminalSize (); $this->updateTerminalSize ();
} }
@@ -121,7 +128,8 @@ private $usleep = 0;
} }
// }}} // }}}
/** Display a text on screen /** Display a text on screen. Must be used before "readline" method because
* the provided message will not be deleted by readline process.
* @param string $message The message to display * @param string $message The message to display
*/ */
public function echo ($message) public function echo ($message)
@@ -326,10 +334,16 @@ private $usleep = 0;
$this->moveCursor ($cursorPos); $this->moveCursor ($cursorPos);
} }
// }}} // }}}
elseif (ord ($char) === 3)
// Abort (Ctrl+C)
{
$this->clearLine ();
return "";
}
elseif (ord ($char) === 4) elseif (ord ($char) === 4)
// Logout (Ctrl+D)
// {{{ // {{{
{ {
// Logout (Ctrl+D)
$string = "exit"; $string = "exit";
$this->rewriteLine ($prompt.$string); $this->rewriteLine ($prompt.$string);
return $string; return $string;