diff --git a/pyls/plugins/hover.py b/pyls/plugins/hover.py
index fe1eca82..33883b74 100644
--- a/pyls/plugins/hover.py
+++ b/pyls/plugins/hover.py
@@ -1,5 +1,6 @@
# Copyright 2017 Palantir Technologies, Inc.
import logging
+import json
from pyls import hookimpl, _utils
log = logging.getLogger(__name__)
@@ -17,4 +18,9 @@ def pyls_hover(document, position):
# :(
return {'contents': ''}
- return {'contents': _utils.format_docstring(definitions[0].docstring()) or ""}
+ pos = document.word_range_at_position(position)
+
+ return {
+ 'contents': _utils.format_docstring(definitions[0].docstring()) or "",
+ 'range': pos,
+ }
diff --git a/pyls/workspace.py b/pyls/workspace.py
index eaebc12d..233ab9a7 100644
--- a/pyls/workspace.py
+++ b/pyls/workspace.py
@@ -178,6 +178,28 @@ def offset_at_position(self, position):
"""Return the byte-offset pointed at by the given position."""
return position['character'] + len(''.join(self.lines[:position['line']]))
+ def word_range_at_position(self, position):
+ """Get the range of a word at given position."""
+ if position['line'] >= len(self.lines):
+ return None
+
+ line = self.lines[position['line']]
+ i = position['character']
+ # Split word in two
+ start = line[:i]
+ end = line[i:]
+
+ # Take end of start and start of end to find word
+ # These are guaranteed to match, even if they match the empty string
+ m_start = RE_START_WORD.findall(start)
+ m_end = RE_END_WORD.findall(end)
+
+ start = { 'line': position['line'], 'character': i - len(m_start[0]) }
+ end = { 'line': position['line'], 'character': i + len(m_end[-1]) }
+
+ return { 'start': start, 'end': end }
+
+
def word_at_position(self, position):
"""Get the word under the cursor returning the start and end positions."""
if position['line'] >= len(self.lines):
diff --git a/test/plugins/test_hover.py b/test/plugins/test_hover.py
index 5d3baf83..c1c8b58a 100644
--- a/test/plugins/test_hover.py
+++ b/test/plugins/test_hover.py
@@ -21,7 +21,17 @@ def test_hover():
doc = Document(DOC_URI, DOC)
assert {
- 'contents': 'main()\n\nhello world'
+ 'contents': 'main()\n\nhello world',
+ 'range': {
+ 'start': {
+ 'line': 2,
+ 'character': 4,
+ },
+ 'end': {
+ 'line': 2,
+ 'character': 8,
+ },
+ },
} == pyls_hover(doc, hov_position)
assert {'contents': ''} == pyls_hover(doc, no_hov_position)
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