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expect_expectl

(no version information, might be only in CVS)

expect_expectl -- Waits until the output from a process matches one of the patterns, a specified time period has passed, or an EOF is seen

Description

int expect_expectl ( resource expect, array cases [, array &match] )

Waits until the output from a process matches one of the patterns, a specified time period has passed, or an EOF is seen.

If match is provided, then it is filled with the result of search. The matched string can be found in match[0]. The match substrings (according to the parentheses) in the original pattern can be found in match[1], match[2], and so on, up to match[9] (the limitation of libexpect).

Parameters

expect

An Expect stream, previously opened with expect_popen().

cases

An array of expect cases. Each expect case is an indexed array, as described in the following table:

Table 1. Expect Case Array

Index Key	Value Type	Description	Is Mandatory	Default Value
0	string	pattern, that will be matched against the output from the stream	yes
1	mixed	value, that will be returned by this function, if the pattern matches	yes
2	integer	pattern type, one of: `EXP_GLOB`, `EXP_EXACT` or `EXP_REGEXP`	no	`EXP_GLOB`

Return Values

Returns value associated with the pattern that was matched.

On failure this function returns: EXP_EOF, EXP_TIMEOUT or EXP_FULLBUFFER

ChangeLog

Version	Description
0.2.1	Prior to version 0.2.1, in `match` parameter a match string was returned, not an array of match substrings.

Examples

Example 1. expect_expectl() example


<?php
// Copies file from remote host:
ini_set ("expect.timeout", 30);

$stream = fopen ("expect://scp user@remotehost:/var/log/messages /home/user/messages.txt", "r");

$cases = array (
  array (0 => "password:", 1 => PASSWORD),
  array (0 => "yes/no)?", 1 => YESNO)
);

while (true) {
 switch (expect_expectl ($stream, $cases))
 {
  case PASSWORD:
   fwrite ($stream, "password\n");
   break;

  case YESNO:
   fwrite ($stream, "yes\n");
   break;

  case EXP_TIMEOUT:
  case EXP_EOF:
   break 2;
  
  default:
   die ("Error has occurred!\n");
 }
}

fclose ($stream);
?>

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