Mercurial > vim
comparison runtime/doc/eval.txt @ 28718:723c7d940cba
patch 8.2.4883: string interpolation only works in heredoc
Commit: https://github.com/vim/vim/commit/2eaef106e4a7fc9dc74a7e672b5f550ec1f9786e
Author: LemonBoy <thatlemon@gmail.com>
Date: Fri May 6 13:14:50 2022 +0100
patch 8.2.4883: string interpolation only works in heredoc
Problem: String interpolation only works in heredoc.
Solution: Support interpolated strings. Use syntax for heredoc consistent
with strings, similar to C#. (closes #10327)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Fri, 06 May 2022 14:15:03 +0200 |
| parents | 060fc3b69697 |
| children | b96ceb97e896 |
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| 28717:3953457538c9 | 28718:723c7d940cba |
|---|---|
| 1520 Single quoted strings are useful for patterns, so that backslashes do not need | 1520 Single quoted strings are useful for patterns, so that backslashes do not need |
| 1521 to be doubled. These two commands are equivalent: > | 1521 to be doubled. These two commands are equivalent: > |
| 1522 if a =~ "\\s*" | 1522 if a =~ "\\s*" |
| 1523 if a =~ '\s*' | 1523 if a =~ '\s*' |
| 1524 | 1524 |
| 1525 | |
| 1526 interpolated-string *interp-string* *E256* | |
| 1527 -------------------- | |
| 1528 $"string" interpolated string constant *expr-$quote* | |
| 1529 $'string' interpolated literal string constant *expr-$'* | |
| 1530 | |
| 1531 Interpolated strings are an extension of the |string| and |literal-string|, | |
| 1532 allowing the inclusion of Vim script expressions (see |expr1|). Any | |
| 1533 expression returning a value can be enclosed between curly braces. The value | |
| 1534 is converted to a string. All the text and results of the expressions | |
| 1535 are concatenated to make a new string. | |
| 1536 | |
| 1537 To include an opening brace '{' or closing brace '}' in the string content | |
| 1538 double it. | |
| 1539 | |
| 1540 Examples: > | |
| 1541 let your_name = input("What's your name? ") | |
| 1542 echo $"Hello, {your_name}!" | |
| 1543 echo $"The square root of 9 is {sqrt(9)}" | |
| 1525 | 1544 |
| 1526 option *expr-option* *E112* *E113* | 1545 option *expr-option* *E112* *E113* |
| 1527 ------ | 1546 ------ |
| 1528 &option option value, local value if possible | 1547 &option option value, local value if possible |
| 1529 &g:option global option value | 1548 &g:option global option value |