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patch 8.2.0298: Vim9 script: cannot start command with a string constant

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Problem:    Vim9 script: cannot start command with a string constant.
Solution:   Recognize expression starting with '('.
This commit is contained in:
Bram Moolenaar
2020-02-22 18:36:32 +01:00
parent 8b430b4c1d
commit 0c6ceaf903
5 changed files with 17 additions and 17 deletions
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runtime/doc/vim9.txt
+5 -3
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@@ -131,21 +131,23 @@ Functions can be called without `:call`: >
Using `:call` is still possible, but this is discouraged.
A method call without `eval` is possible, so long as the start is an
identifier or can't be an Ex command. It does not work for string constants: >
identifier or can't be an Ex command. It does NOT work for string constants: >
myList->add(123) " works
g:myList->add(123) " works
[1, 2, 3]->Process() " works
#{a: 1, b: 2}->Process() " works
{'a': 1, 'b': 2}->Process() " works
"foobar"->Process() " does NOT work
eval "foobar"->Process() " works
("foobar")->Process() " works
'foobar'->Process() " does NOT work
('foobar')->Process() " works
In case there is ambiguity between a function name and an Ex command, use ":"
to make clear you want to use the Ex command. For example, there is both the
`:substitute` command and the `substitute()` function. When the line starts
with `substitute(` this will use the function, prepend a colon to use the
command instead: >
:substitute(pattern(replacement(
:substitute(pattern (replacement (
No curly braces expansion ~