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replpainter.py
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212 lines (170 loc) · 7.42 KB
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# -*- coding: utf-8 -*-
import logging
import itertools
from six.moves import range
from curtsies import fsarray, fmtstr
from curtsies.formatstring import linesplit
from curtsies.fmtfuncs import bold
from bpython.curtsiesfrontend.parse import func_for_letter
from bpython._py3compat import py3
if not py3:
import inspect
logger = logging.getLogger(__name__)
# All paint functions should
# * return an array of the width they were asked for
# * return an array not taller than the height they were asked for
def display_linize(msg, columns, blank_line=False):
"""Returns lines obtained by splitting msg over multiple lines.
Warning: if msg is empty, returns an empty list of lines"""
display_lines = ([msg[start:end]
for start, end in zip(
range(0, len(msg), columns),
range(columns, len(msg)+columns, columns))]
if msg else ([''] if blank_line else []))
return display_lines
def paint_history(rows, columns, display_lines):
lines = []
for r, line in zip(range(rows), display_lines[-rows:]):
lines.append(fmtstr(line[:columns]))
r = fsarray(lines, width=columns)
assert r.shape[0] <= rows, repr(r.shape)+' '+repr(rows)
assert r.shape[1] <= columns, repr(r.shape)+' '+repr(columns)
return r
def paint_current_line(rows, columns, current_display_line):
lines = display_linize(current_display_line, columns, True)
return fsarray(lines, width=columns)
def matches_lines(rows, columns, matches, current, config, format):
highlight_color = func_for_letter(config.color_scheme['operator'].lower())
if not matches:
return []
color = func_for_letter(config.color_scheme['main'])
max_match_width = max(len(m) for m in matches)
words_wide = max(1, (columns - 1) // (max_match_width + 1))
matches = [format(m) for m in matches]
if current:
current = format(current)
matches_lines = [fmtstr(' ').join(color(m.ljust(max_match_width))
if m != current
else highlight_color(
m.ljust(max_match_width))
for m in matches[i:i+words_wide])
for i in range(0, len(matches), words_wide)]
logger.debug('match: %r' % current)
logger.debug('matches_lines: %r' % matches_lines)
return matches_lines
def formatted_argspec(argspec, columns, config):
# Pretty directly taken from bpython.cli
is_bound_method = argspec[2]
func = argspec[0]
args = argspec[1][0]
kwargs = argspec[1][3]
_args = argspec[1][1] # *args
_kwargs = argspec[1][2] # **kwargs
is_bound_method = argspec[2]
in_arg = argspec[3]
if py3:
kwonly = argspec[1][4]
kwonly_defaults = argspec[1][5] or dict()
arg_color = func_for_letter(config.color_scheme['name'])
func_color = func_for_letter(config.color_scheme['name'].swapcase())
punctuation_color = func_for_letter(config.color_scheme['punctuation'])
token_color = func_for_letter(config.color_scheme['token'])
bolds = {token_color: lambda x: bold(token_color(x)),
arg_color: lambda x: bold(arg_color(x))}
s = func_color(func) + arg_color(': (')
if is_bound_method and isinstance(in_arg, int):
# TODO what values could this have?
in_arg += 1
for i, arg in enumerate(args):
kw = None
if kwargs and i >= len(args) - len(kwargs):
kw = str(kwargs[i - (len(args) - len(kwargs))])
color = token_color if in_arg in (i, arg) else arg_color
if i == in_arg or arg == in_arg:
color = bolds[color]
if not py3:
s += color(inspect.strseq(arg, str))
else:
s += color(arg)
if kw is not None:
s += punctuation_color('=')
s += token_color(kw)
if i != len(args) - 1:
s += punctuation_color(', ')
if _args:
if args:
s += punctuation_color(', ')
s += token_color('*%s' % (_args,))
if py3 and kwonly:
if not _args:
if args:
s += punctuation_color(', ')
s += punctuation_color('*')
marker = object()
for arg in kwonly:
s += punctuation_color(', ')
color = token_color
if in_arg:
color = bolds[color]
s += color(arg)
default = kwonly_defaults.get(arg, marker)
if default is not marker:
s += punctuation_color('=')
s += token_color(repr(default))
if _kwargs:
if args or _args or (py3 and kwonly):
s += punctuation_color(', ')
s += token_color('**%s' % (_kwargs,))
s += punctuation_color(')')
return linesplit(s, columns)
def formatted_docstring(docstring, columns, config):
color = func_for_letter(config.color_scheme['comment'])
return sum(([color(x) for x in (display_linize(line, columns) if line else
fmtstr(''))]
for line in docstring.split('\n')), [])
def paint_infobox(rows, columns, matches, argspec, match, docstring, config,
format):
"""Returns painted completions, argspec, match, docstring etc."""
if not (rows and columns):
return fsarray(0, 0)
width = columns - 4
lines = ((formatted_argspec(argspec, width, config) if argspec else []) +
(matches_lines(rows, width, matches, match, config, format)
if matches else []) +
(formatted_docstring(docstring, width, config)
if docstring else []))
def add_border(line):
"""Add colored borders left and right to a line."""
new_line = border_color(config.left_border + ' ')
new_line += line.ljust(width)[:width]
new_line += border_color(' ' + config.right_border)
return new_line
border_color = func_for_letter(config.color_scheme['main'])
top_line = border_color(config.left_top_corner +
config.top_border * (width + 2) +
config.right_top_corner)
bottom_line = border_color(config.left_bottom_corner +
config.bottom_border * (width + 2) +
config.right_bottom_corner)
output_lines = list(itertools.chain((top_line, ), map(add_border, lines),
(bottom_line, )))
r = fsarray(output_lines[:min(rows - 1,
len(output_lines) - 1)] + output_lines[-1:])
return r
def paint_last_events(rows, columns, names, config):
if not names:
return fsarray([])
width = min(max(len(name) for name in names), columns - 2)
output_lines = []
output_lines.append(config.left_top_corner+config.top_border * width +
config.right_top_corner)
for name in reversed(names[max(0, len(names) - (rows - 2)):]):
output_lines.append(config.left_border + name[:width].center(width) +
config.right_border)
output_lines.append(config.left_bottom_corner +
config.bottom_border * width +
config.right_bottom_corner)
return fsarray(output_lines)
def paint_statusbar(rows, columns, msg, config):
func = func_for_letter(config.color_scheme['main'])
return fsarray([func(msg.ljust(columns))[:columns]])