rfc:readline_interactive_shell_result_function

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rfc:readline_interactive_shell_result_function [2021/01/16 20:50] – tandrerfc:readline_interactive_shell_result_function [2021/01/16 20:53] – tandre
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-====== PHP RFC: Configurable callback to dump results of expressions in `php -a` ======+====== PHP RFC: Dump results of expressions in `php -a` ======
   * Version: 0.1   * Version: 0.1
   * Date: 2020-12-19   * Date: 2020-12-19
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 (I've seen https://github.com/bobthecow/psysh mentioned as an alternative for ''php -a'' while investigating this, but that's a shell written from scratch, and doesn't have some functionality from ''php -a'' such as tolerance of fatal errors) (I've seen https://github.com/bobthecow/psysh mentioned as an alternative for ''php -a'' while investigating this, but that's a shell written from scratch, and doesn't have some functionality from ''php -a'' such as tolerance of fatal errors)
  
-Because PHP's interactive shell is written in C, adding new features or bug fixes would require a lot of time getting familiar with 
-C programming, PHP's internals and memory management, and with PHP's internal C ast representation. It would be easier and more accessible to extend PHP's interactive shell through code written in PHP rather than code written in C. 
  
 ===== Proposal ===== ===== Proposal =====
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 Additionally, add a new function ''readline_interactive_shell_result_function'' to the ''readline'' PHP module. This function only affects interactive shells - it can be used to set or clear a closure when ''extension_loaded('readline') === true'', but that closure would only be called in interactive shells (i.e. ''php -a''). Additionally, add a new function ''readline_interactive_shell_result_function'' to the ''readline'' PHP module. This function only affects interactive shells - it can be used to set or clear a closure when ''extension_loaded('readline') === true'', but that closure would only be called in interactive shells (i.e. ''php -a'').
  
-This will dump the results of expressions every time a statement containing a single expression such as ''2+2;'' or ''$x = call_function();'' is evaluated (but not non-expressions such as ''class X{}'' or combinations of expressions such as ''$x = 1; $y = $x*2;''.+This will dump the results of expressions every time a statement containing a single expression such as ''2+2;'' or ''$x = call_function();'' is evaluated (but not non-expressions such as ''class X{}'', statement blocks such as ''{ $x = 1; }'', or combinations of expressions such as ''$x = 1; $y = $x*2;''.
  
 An example of the behavior of the default expression dumper is below: An example of the behavior of the default expression dumper is below:
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 ===== Proposed Voting Choices ===== ===== Proposed Voting Choices =====
- 
-Voting starts on 2021-01-03 and ends 2021-01-17. 
  
 Yes/No, requiring 2/3 majority Yes/No, requiring 2/3 majority
rfc/readline_interactive_shell_result_function.txt · Last modified: 2021/02/03 00:39 by tandre

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