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comparison runtime/doc/eval.txt @ 20665:6ff992bf4c82 v8.2.0886

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patch 8.2.0886: cannot use octal numbers in scriptversion 4 Commit: https://github.com/vim/vim/commit/c17e66c5c0acd5038f1eb3d7b3049b64bb6ea30b Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 2 21:38:22 2020 +0200 patch 8.2.0886: cannot use octal numbers in scriptversion 4 Problem: Cannot use octal numbers in scriptversion 4. Solution: Add the "0o" notation. (Ken Takata, closes https://github.com/vim/vim/issues/5304)
author Bram Moolenaar <Bram@vim.org>
date Tue, 02 Jun 2020 21:45:03 +0200
parents 1fa0ace0ba65
children 1af1d8ff2aa8
comparison
equal deleted inserted replaced
20664:2ee305469487 20665:6ff992bf4c82
93 Number 123 --> String "123" ~ 93 Number 123 --> String "123" ~
94 Number 0 --> String "0" ~ 94 Number 0 --> String "0" ~
95 Number -1 --> String "-1" ~ 95 Number -1 --> String "-1" ~
96 *octal* 96 *octal*
97 Conversion from a String to a Number is done by converting the first digits to 97 Conversion from a String to a Number is done by converting the first digits to
98 a number. Hexadecimal "0xf9", Octal "017", and Binary "0b10" numbers are 98 a number. Hexadecimal "0xf9", Octal "017" or "0o17", and Binary "0b10"
99 recognized (NOTE: when using |scriptversion-4| octal is not recognized). If 99 numbers are recognized (NOTE: when using |scriptversion-4| octal with a
100 the String doesn't start with digits, the result is zero. 100 leading "0" is not recognized). If the String doesn't start with digits, the
101 result is zero.
101 Examples: 102 Examples:
102 String "456" --> Number 456 ~ 103 String "456" --> Number 456 ~
103 String "6bar" --> Number 6 ~ 104 String "6bar" --> Number 6 ~
104 String "foo" --> Number 0 ~ 105 String "foo" --> Number 0 ~
105 String "0xf1" --> Number 241 ~ 106 String "0xf1" --> Number 241 ~
106 String "0100" --> Number 64 ~ 107 String "0100" --> Number 64 ~
108 String "0o100" --> Number 64 ~
107 String "0b101" --> Number 5 ~ 109 String "0b101" --> Number 5 ~
108 String "-8" --> Number -8 ~ 110 String "-8" --> Number -8 ~
109 String "+8" --> Number 0 ~ 111 String "+8" --> Number 0 ~
110 112
111 To force conversion from String to Number, add zero to it: > 113 To force conversion from String to Number, add zero to it: >
1262 ------ 1264 ------
1263 number number constant *expr-number* 1265 number number constant *expr-number*
1264 *hex-number* *octal-number* *binary-number* 1266 *hex-number* *octal-number* *binary-number*
1265 1267
1266 Decimal, Hexadecimal (starting with 0x or 0X), Binary (starting with 0b or 0B) 1268 Decimal, Hexadecimal (starting with 0x or 0X), Binary (starting with 0b or 0B)
1267 and Octal (starting with 0). 1269 and Octal (starting with 0, 0o or 0O).
1268 1270
1269 *floating-point-format* 1271 *floating-point-format*
1270 Floating point numbers can be written in two forms: 1272 Floating point numbers can be written in two forms:
1271 1273
1272 [-+]{N}.{M} 1274 [-+]{N}.{M}
9640 with the default String to Number conversion. Example: > 9642 with the default String to Number conversion. Example: >
9641 let nr = str2nr('0123') 9643 let nr = str2nr('0123')
9642 < 9644 <
9643 When {base} is 16 a leading "0x" or "0X" is ignored. With a 9645 When {base} is 16 a leading "0x" or "0X" is ignored. With a
9644 different base the result will be zero. Similarly, when 9646 different base the result will be zero. Similarly, when
9645 {base} is 8 a leading "0" is ignored, and when {base} is 2 a 9647 {base} is 8 a leading "0", "0o" or "0O" is ignored, and when
9646 leading "0b" or "0B" is ignored. 9648 {base} is 2 a leading "0b" or "0B" is ignored.
9647 Text after the number is silently ignored. 9649 Text after the number is silently ignored.
9648 9650
9649 Can also be used as a |method|: > 9651 Can also be used as a |method|: >
9650 GetText()->str2nr() 9652 GetText()->str2nr()
9651 9653
13591 Test for support with: > 13593 Test for support with: >
13592 has('vimscript-3') 13594 has('vimscript-3')
13593 < 13595 <
13594 *scriptversion-4* > 13596 *scriptversion-4* >
13595 :scriptversion 4 13597 :scriptversion 4
13596 < Numbers with a leading zero are not recognized as octal. With the 13598 < Numbers with a leading zero are not recognized as octal. "0o" or "0O"
13599 is still recognized as octal. With the
13597 previous version you get: > 13600 previous version you get: >
13598 echo 017 " displays 15 13601 echo 017 " displays 15 (octal)
13599 echo 018 " displays 18 13602 echo 0o17 " displays 15 (octal)
13603 echo 018 " displays 18 (decimal)
13600 < with script version 4: > 13604 < with script version 4: >
13601 echo 017 " displays 17 13605 echo 017 " displays 17 (decimal)
13602 echo 018 " displays 18 13606 echo 0o17 " displays 15 (octal)
13607 echo 018 " displays 18 (decimal)
13603 < Also, it is possible to use single quotes inside numbers to make them 13608 < Also, it is possible to use single quotes inside numbers to make them
13604 easier to read: > 13609 easier to read: >
13605 echo 1'000'000 13610 echo 1'000'000
13606 < The quotes must be surrounded by digits. 13611 < The quotes must be surrounded by digits.
13607 13612