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comparison runtime/doc/eval.txt @ 8275:ff900e499f79 v7.4.1430

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commit https://github.com/vim/vim/commit/7ce686c990ea8c490d16be7f1c6bd95eb48816f9 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Feb 27 16:33:22 2016 +0100 patch 7.4.1430 Problem: When encoding JSON, turning NaN and Infinity into null without giving an error is not useful. Solution: Pass NaN and Infinity on. If the receiver can't handle them it will generate the error.
author Christian Brabandt <cb@256bit.org>
date Sat, 27 Feb 2016 16:45:04 +0100
parents 989ac3aed1ef
children e05e28dcb590
comparison
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8274:fbf8242df3a4 8275:ff900e499f79
1 *eval.txt* For Vim version 7.4. Last change: 2016 Feb 23 1 *eval.txt* For Vim version 7.4. Last change: 2016 Feb 27
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4 VIM REFERENCE MANUAL by Bram Moolenaar 4 VIM REFERENCE MANUAL by Bram Moolenaar
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4559 The encoding is specified in: 4559 The encoding is specified in:
4560 https://tools.ietf.org/html/rfc7159.html 4560 https://tools.ietf.org/html/rfc7159.html
4561 Vim values are converted as follows: 4561 Vim values are converted as follows:
4562 Number decimal number 4562 Number decimal number
4563 Float floating point number 4563 Float floating point number
4564 Float nan "NaN"
4565 Float inf "Infinity"
4564 String in double quotes (possibly null) 4566 String in double quotes (possibly null)
4565 Funcref not possible, error 4567 Funcref not possible, error
4566 List as an array (possibly null); when 4568 List as an array (possibly null); when
4567 used recursively: [] 4569 used recursively: []
4568 Dict as an object (possibly null); when 4570 Dict as an object (possibly null); when
4569 used recursively: {} 4571 used recursively: {}
4570 v:false "false" 4572 v:false "false"
4571 v:true "true" 4573 v:true "true"
4572 v:none "null" 4574 v:none "null"
4573 v:null "null" 4575 v:null "null"
4574 Note that using v:none is permitted, although the JSON 4576 Note that NaN and Infinity are passed on as values. This is
4575 standard does not allow empty items. This can be useful for 4577 missing in the JSON standard, but several implementations do
4576 omitting items in an array: 4578 allow it. If not then you will get an error.
4577 [0,,,,,5] ~
4578 This is much more efficient than:
4579 [0,null,null,null,null,5] ~
4580 But a strict JSON parser will not accept it.
4581 4579
4582 keys({dict}) *keys()* 4580 keys({dict}) *keys()*
4583 Return a |List| with all the keys of {dict}. The |List| is in 4581 Return a |List| with all the keys of {dict}. The |List| is in
4584 arbitrary order. 4582 arbitrary order.
4585 4583