Question about the booleans in expl3 (of LaTeX3)











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In expl3, there are the commands int_zero_new:N, tl_clear_new:N, str_clear_new:N , seq_clear_new:N, clist_clear_new:N, etc., but there is no similar command for the booleans (something like bool_false_new:N). Is there a reason ?










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  • @TeXnician But isn't the objective to make a new one, or to set an existing false?
    – Manuel
    Nov 18 at 12:35










  • The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
    – F. Pantigny
    Nov 18 at 12:52












  • The default value of a new boolean is false.
    – Ulrike Fischer
    Nov 18 at 14:52










  • @ Ulrike Fischer. Yes, I know but this is not my question.
    – F. Pantigny
    Nov 18 at 15:55






  • 2




    I think it would make sense to provide such a command.
    – Bruno Le Floch
    Nov 18 at 16:24















up vote
4
down vote

favorite












In expl3, there are the commands int_zero_new:N, tl_clear_new:N, str_clear_new:N , seq_clear_new:N, clist_clear_new:N, etc., but there is no similar command for the booleans (something like bool_false_new:N). Is there a reason ?










share|improve this question






















  • @TeXnician But isn't the objective to make a new one, or to set an existing false?
    – Manuel
    Nov 18 at 12:35










  • The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
    – F. Pantigny
    Nov 18 at 12:52












  • The default value of a new boolean is false.
    – Ulrike Fischer
    Nov 18 at 14:52










  • @ Ulrike Fischer. Yes, I know but this is not my question.
    – F. Pantigny
    Nov 18 at 15:55






  • 2




    I think it would make sense to provide such a command.
    – Bruno Le Floch
    Nov 18 at 16:24













up vote
4
down vote

favorite









up vote
4
down vote

favorite











In expl3, there are the commands int_zero_new:N, tl_clear_new:N, str_clear_new:N , seq_clear_new:N, clist_clear_new:N, etc., but there is no similar command for the booleans (something like bool_false_new:N). Is there a reason ?










share|improve this question













In expl3, there are the commands int_zero_new:N, tl_clear_new:N, str_clear_new:N , seq_clear_new:N, clist_clear_new:N, etc., but there is no similar command for the booleans (something like bool_false_new:N). Is there a reason ?







expl3






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asked Nov 18 at 12:18









F. Pantigny

48518




48518












  • @TeXnician But isn't the objective to make a new one, or to set an existing false?
    – Manuel
    Nov 18 at 12:35










  • The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
    – F. Pantigny
    Nov 18 at 12:52












  • The default value of a new boolean is false.
    – Ulrike Fischer
    Nov 18 at 14:52










  • @ Ulrike Fischer. Yes, I know but this is not my question.
    – F. Pantigny
    Nov 18 at 15:55






  • 2




    I think it would make sense to provide such a command.
    – Bruno Le Floch
    Nov 18 at 16:24


















  • @TeXnician But isn't the objective to make a new one, or to set an existing false?
    – Manuel
    Nov 18 at 12:35










  • The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
    – F. Pantigny
    Nov 18 at 12:52












  • The default value of a new boolean is false.
    – Ulrike Fischer
    Nov 18 at 14:52










  • @ Ulrike Fischer. Yes, I know but this is not my question.
    – F. Pantigny
    Nov 18 at 15:55






  • 2




    I think it would make sense to provide such a command.
    – Bruno Le Floch
    Nov 18 at 16:24
















@TeXnician But isn't the objective to make a new one, or to set an existing false?
– Manuel
Nov 18 at 12:35




@TeXnician But isn't the objective to make a new one, or to set an existing false?
– Manuel
Nov 18 at 12:35












The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
– F. Pantigny
Nov 18 at 12:52






The objective of such a command would be to set the boolean to false... after creation of this boolean if it doesn't yet exist. Of course, it's very easy to write such a command. My question is: why such an command doesn't since it would be very similar to the existing commands for many other expl3 types of objects.
– F. Pantigny
Nov 18 at 12:52














The default value of a new boolean is false.
– Ulrike Fischer
Nov 18 at 14:52




The default value of a new boolean is false.
– Ulrike Fischer
Nov 18 at 14:52












@ Ulrike Fischer. Yes, I know but this is not my question.
– F. Pantigny
Nov 18 at 15:55




@ Ulrike Fischer. Yes, I know but this is not my question.
– F. Pantigny
Nov 18 at 15:55




2




2




I think it would make sense to provide such a command.
– Bruno Le Floch
Nov 18 at 16:24




I think it would make sense to provide such a command.
– Bruno Le Floch
Nov 18 at 16:24










1 Answer
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You have to keep in mind that expl3 is under very active development and no “final” version exists yet. That is to say, that the reason for the absence of commands like bool_false_new:N is that nobody has implemented them yet. This is usually due to the fact that nobody was able to come up with a convincing use-case. The LaTeX3 team is rather reluctant with adding new functionality for which there are few or no users, out of fear that expl3 becomes too bloated and unmaintainable. Nevertheless, you should feel encouraged to file a pull request against the official expl3 upstream code at https://github.com/latex3/latex3 such that a discussion about this new feature can be created.






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    You have to keep in mind that expl3 is under very active development and no “final” version exists yet. That is to say, that the reason for the absence of commands like bool_false_new:N is that nobody has implemented them yet. This is usually due to the fact that nobody was able to come up with a convincing use-case. The LaTeX3 team is rather reluctant with adding new functionality for which there are few or no users, out of fear that expl3 becomes too bloated and unmaintainable. Nevertheless, you should feel encouraged to file a pull request against the official expl3 upstream code at https://github.com/latex3/latex3 such that a discussion about this new feature can be created.






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      up vote
      2
      down vote













      You have to keep in mind that expl3 is under very active development and no “final” version exists yet. That is to say, that the reason for the absence of commands like bool_false_new:N is that nobody has implemented them yet. This is usually due to the fact that nobody was able to come up with a convincing use-case. The LaTeX3 team is rather reluctant with adding new functionality for which there are few or no users, out of fear that expl3 becomes too bloated and unmaintainable. Nevertheless, you should feel encouraged to file a pull request against the official expl3 upstream code at https://github.com/latex3/latex3 such that a discussion about this new feature can be created.






      share|improve this answer























        up vote
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        up vote
        2
        down vote









        You have to keep in mind that expl3 is under very active development and no “final” version exists yet. That is to say, that the reason for the absence of commands like bool_false_new:N is that nobody has implemented them yet. This is usually due to the fact that nobody was able to come up with a convincing use-case. The LaTeX3 team is rather reluctant with adding new functionality for which there are few or no users, out of fear that expl3 becomes too bloated and unmaintainable. Nevertheless, you should feel encouraged to file a pull request against the official expl3 upstream code at https://github.com/latex3/latex3 such that a discussion about this new feature can be created.






        share|improve this answer












        You have to keep in mind that expl3 is under very active development and no “final” version exists yet. That is to say, that the reason for the absence of commands like bool_false_new:N is that nobody has implemented them yet. This is usually due to the fact that nobody was able to come up with a convincing use-case. The LaTeX3 team is rather reluctant with adding new functionality for which there are few or no users, out of fear that expl3 becomes too bloated and unmaintainable. Nevertheless, you should feel encouraged to file a pull request against the official expl3 upstream code at https://github.com/latex3/latex3 such that a discussion about this new feature can be created.







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        answered Nov 19 at 3:55









        Henri Menke

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