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CHANGELOG.md

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Change Log for Environment Variables Unit

v3.0 of 30 January 2014

  • Major rewrite of Environment Variables Unit:
    • New TPJEnvironmentVars static class, along with some subsidiary types, that provides methods to interrogate, enumerate and manipulate environment variables. This class supersedes the TPJEnvVar component and the various public routines: it replicates and extends their functionality while also fixing several bugs found in them.
    • Both the TPJEnvVars component and the public routines are now deprecated and have been flagged as such.
    • All public routines re-implemented as simple wrappers around calls to TPJEvironmentVas methods.
    • TPJEnvVars component refactored and heavily revised to call into TPJEnvironmentVars. Some minor bugs fixed.
    • On compilers that support it, anonymous methods can now be used as callbacks passed to enumerator methods.
    • Unit names in uses clauses are now qualified with their namespace when compiled with Delphi XE2 and later.
    • Registration code for the TPJEnvVars component has been removed into a new PJEnvVarsDsgn unit. This new unit is now required only if the deprecated component is to be registered with the Delphi IDE.
    • Fixed problem with compiler directives that was causing compilation to fail on Delphi XE5.
  • Added two public domain demo projects, with a VCL and FireMonkey 2 version of each, along with a read-me file that explains how to compile and use them.
  • WinHelp help file removed from project.
  • Source code license changed to Mozilla Public License v2.0.
  • Updated documentation:
    • The unit is now extensively documented in XMLDoc format.
    • The project read-me file has been completely overhauled re the changes.
    • The main documentation files are now licensed under the Mozilla Public License v2.0.
    • The documentation internet short-cut's URL has been changed to reference new online documentation. The short-cut has also been renamed.
    • The MPL text file's contents have been changed from the Mozilla Public License v1.1 to v2.0 and the file has been renamed accordingly.
    • HTML file containing demo code has been removed.

v2.0 of 23 October 2010

  • Added an enumerator for the environment variables component that supports the Delphi for..in construct (issue #10).
  • Added new EnvBlockSize and two overloaded GetAllEnvVarNames routines.
  • Renamed some conditional compilation symbols.
  • Abandoned Delphi 3 support.
  • Updated help file re changes. Added links to Wiki in place of detailed information.
  • Added demo code for new enumerator and routines to demo read-me file.
  • Updated read-me file.

v1.3.2 of 22 October 2010

  • Fixed bug in ExpandEnvVars routine (issue #11).
  • Made minor changes to read-me file.

v1.3.1 of 20 February 2010

  • Fixed bug in GetAllEnvVars routine (issue #3).
  • Fixed bug in ExpandEnvironmentStrings (issue #4).
  • Updated help file and example code document for compatibility when Unicode Delphis. Example code stripped from help file.
  • Updated documentation.

v1.3 of 17 August 2008

  • Fixed bugs in component:
    • Compilers later than Delphi 7 used deprecated Win32Error instead of EOSError.
    • Passing nil as owner to component's constructor caused an access violation.
  • Added assertion to enforce passing non-nil callback function to TPJEnvVars.EnumNames.
  • Switched off UNSAFE_TYPE warnings in Delphi 7 and later.
  • Expanded and corrected help file content and updated copyright date.
  • Changed to Mozilla Public License.

v1.2 of 10 August 2003

  • Fixed bug causing error when attempting to access an environment variable that does not exist.

v1.1 of 31 July 2003 {Never publicly released}

  • Updated component palette from "PJ Stuff" to "DelphiDabbler".
  • Changed references to EWin32Error exception to EOSError in components compiled with Delphi 6 and later.
  • Updated copyright date and owner in help file.

v1.0 of 02 September 2001

  • Original version.