/usr/share/idl/thunderbird/nsIEnvironment.idl is in thunderbird-dev 1:52.8.0-1~deb8u1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
/**
* Scriptable access to the current process environment.
*
*/
[scriptable, uuid(101d5941-d820-4e85-a266-9a3469940807)]
interface nsIEnvironment : nsISupports
{
/**
* Set the value of an environment variable.
*
* @param aName the variable name to set.
* @param aValue the value to set.
*/
void set(in AString aName, in AString aValue);
/**
* Get the value of an environment variable.
*
* @param aName the variable name to retrieve.
* @return returns the value of the env variable. An empty string
* will be returned when the env variable does not exist or
* when the value itself is an empty string - please use
* |exists()| to probe whether the env variable exists
* or not.
*/
AString get(in AString aName);
/**
* Check the existence of an environment variable.
* This method checks whether an environment variable is present in
* the environment or not.
*
* - For Unix/Linux platforms we follow the Unix definition:
* An environment variable exists when |getenv()| returns a non-NULL value.
* An environment variable does not exist when |getenv()| returns NULL.
* - For non-Unix/Linux platforms we have to fall back to a
* "portable" definition (which is incorrect for Unix/Linux!!!!)
* which simply checks whether the string returned by |Get()| is empty
* or not.
*
* @param aName the variable name to probe.
* @return if the variable has been set, the value returned is
* PR_TRUE. If the variable was not defined in the
* environment PR_FALSE will be returned.
*/
boolean exists(in AString aName);
};
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