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fix(cli): handle CJK wide chars in TUI input height

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Tianxiao
2026-04-06 16:30:58 +02:00
committed by Teknium
parent 05f9267938
commit 8a29b49036
2 changed files with 100 additions and 5 deletions
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18
cli.py
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@@ -7469,18 +7469,26 @@ class HermesCLI:
# wrapping of long lines so the input area always fits its content.
def _input_height():
try:
from prompt_toolkit.application import get_app
from prompt_toolkit.utils import get_cwidth
doc = input_area.buffer.document
prompt_width = max(2, len(self._get_tui_prompt_text()))
available_width = shutil.get_terminal_size().columns - prompt_width
prompt_width = max(2, get_cwidth(self._get_tui_prompt_text()))
try:
available_width = get_app().output.get_size().columns - prompt_width
except Exception:
available_width = shutil.get_terminal_size((80, 24)).columns - prompt_width
if available_width < 10:
available_width = 40
visual_lines = 0
for line in doc.lines:
# Each logical line takes at least 1 visual row; long lines wrap
if len(line) == 0:
# Each logical line takes at least 1 visual row; long lines wrap.
# Use prompt_toolkit's cell width so CJK wide characters count as 2.
line_width = get_cwidth(line)
if line_width <= 0:
visual_lines += 1
else:
visual_lines += max(1, -(-len(line) // available_width)) # ceil division
visual_lines += max(1, -(-line_width // available_width)) # ceil division
return min(max(visual_lines, 1), 8)
except Exception:
return 1