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mal/impls/php/readline.php
Joel Martin 8a19f60386 Move implementations into impls/ dir
- Reorder README to have implementation list after "learning tool"
  bullet.

- This also moves tests/ and libs/ into impls. It would be preferrable
  to have these directories at the top level.  However, this causes
  difficulties with the wasm implementations which need pre-open
  directories and have trouble with paths starting with "../../". So
  in lieu of that, symlink those directories to the top-level.

- Move the run_argv_test.sh script into the tests directory for
  general hygiene.
2020-02-10 23:50:16 -06:00

42 lines
1.0 KiB
PHP

<?php
if (php_sapi_name() == "cli") {
$HISTORY_FILE = $_SERVER['HOME'] . "/.mal-history";
function mal_readline($prompt) {
global $HISTORY_FILE;
static $history_loaded = false;
// Load the history file
if (! $history_loaded) {
$history_loaded = true;
if (is_readable($HISTORY_FILE)) {
if ($file = fopen($HISTORY_FILE, "r")) {
while (!feof($file)) {
$line = fgets($file);
if ($line) { readline_add_history($line); }
}
fclose($file);
}
}
}
$line = readline($prompt);
if ($line === false) { return NULL; }
readline_add_history($line);
// Append to the history file
if (is_writable($HISTORY_FILE)) {
if ($file = fopen($HISTORY_FILE, "a")) {
fputs($file, $line . "\n");
fclose($file);
}
}
return $line;
}
} else {
function mal_readline($prompt) {}
}
?>