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add short legacy vimscript intro as suggested by @kennypete

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Konfekt 2025-04-18 21:19:39 +02:00
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vim9script.md
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@ -8,16 +8,20 @@ contributors:
---
Vim9Script is a modern scripting language introduced in Vim 9.0.
It improves performance, readability, and structure over legacy Vimscript.
It is designed to replace legacy Vimscript (also called VimL), which is a sequence of ex-commands enhanced with scripting constructs like variables, functions, and control flow.
Unlike legacy Vimscript, Vim9Script enforces stricter syntax, improves performance, and supports modern programming features such as strong typing, classes, lambdas, and modules.
Try [vim9-conversion-aid](https://github.com/ubaldot/vim9-conversion-aid) as a starting point to convert legacy Vimscript to Vim9Script.
```vim
vim9script
# The vim9script namespace, above, is required to distinguish a Vim9 script
# *.vim file from a legacy vimscript file. In Vim's command-line mode,
# or in a legacy script, using the command `:vim9cmd` (or just `:vim9`) before
# a command also evaluates and executes code as Vim9 script.
#
# There is no distinction between single and multi-line comments.
# Use # inside a line at any position to comment out all following characters.