53 lines
1.3 KiB
Markdown
53 lines
1.3 KiB
Markdown
# Aliases for snippets
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Let's imagine we're editing shell file and we need to debug some vars.
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Essentially, we will end up with snippet like that, that will automatically
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insert location of the debug statement and variable name.
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Example of that snippet is shown below:
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```
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snippet pr "print debug" bw
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`!p
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prefix = t[1] + ": %q\\n' "
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prefix = "{}:{}: {}".format(
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os.path.basename(px.buffer.get().name),
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str(px.cursor.get()[0]),
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prefix
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)
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`printf 'XXXXXX `!p snip.rv=prefix`$1 >&2
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endsnippet
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```
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Now, we want to use same debug snippet, but dump variable to the file.
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How can we do it?
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Simple, declare new snippet in that way:
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```
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post_jump "px.snippets.expand(snip)"
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snippet pd "Description" b
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pr$1 >${2:/tmp/debug}
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endsnippet
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```
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This snippet will expand `pr` snippet automatically (note `pr$1` part) after
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jumping to the first placeholder (jump will be done automatically by UltiSnips
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engine).
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`px.snippets.expand(snip)` is declared in that way:
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```python
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def expand(snip, jump_pos=1):
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if snip.tabstop != jump_pos:
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return
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vim.eval('feedkeys("\<C-R>=UltiSnips#ExpandSnippet()\<CR>")')
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```
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`px.buffer.get()` and `px.cursor.get()` are simple helpers for the
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`vim.current.window.buffer` and `vim.current.window.cursor`.
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