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51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
9 years ago
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#!/usr/bin/env python
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# encoding: utf-8
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"""Parses a UltiSnips snippet definition and launches it into Vim."""
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from UltiSnips.snippet.parsing._base import tokenize_snippet_text, finalize, resolve_ambiguity
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from UltiSnips.snippet.parsing._lexer import EscapeCharToken, \
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VisualToken, TransformationToken, TabStopToken, MirrorToken, \
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PythonCodeToken, VimLCodeToken, ShellCodeToken
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from UltiSnips.text_objects import EscapedChar, Mirror, PythonCode, \
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ShellCode, TabStop, Transformation, VimLCode, Visual
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_TOKEN_TO_TEXTOBJECT = {
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EscapeCharToken: EscapedChar,
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VisualToken: Visual,
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ShellCodeToken: ShellCode,
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PythonCodeToken: PythonCode,
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VimLCodeToken: VimLCode,
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}
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__ALLOWED_TOKENS = [
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EscapeCharToken, VisualToken, TransformationToken, TabStopToken,
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MirrorToken, PythonCodeToken, VimLCodeToken, ShellCodeToken
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]
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def _create_transformations(all_tokens, seen_ts):
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"""Create the objects that need to know about tabstops."""
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for parent, token in all_tokens:
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if isinstance(token, TransformationToken):
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if token.number not in seen_ts:
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raise RuntimeError(
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'Tabstop %i is not known but is used by a Transformation'
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% token.number)
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Transformation(parent, seen_ts[token.number], token)
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def parse_and_instantiate(parent_to, text, indent):
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"""Parses a snippet definition in UltiSnips format from 'text' assuming the
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current 'indent'.
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Will instantiate all the objects and link them as children to
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parent_to. Will also put the initial text into Vim.
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"""
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all_tokens, seen_ts = tokenize_snippet_text(parent_to, text, indent,
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__ALLOWED_TOKENS, __ALLOWED_TOKENS, _TOKEN_TO_TEXTOBJECT)
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resolve_ambiguity(all_tokens, seen_ts)
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_create_transformations(all_tokens, seen_ts)
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finalize(all_tokens, seen_ts, parent_to)
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