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author | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
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committer | monster <monster@ydb.tech> | 2022-07-07 14:41:37 +0300 |
commit | 06e5c21a835c0e923506c4ff27929f34e00761c2 (patch) | |
tree | 75efcbc6854ef9bd476eb8bf00cc5c900da436a2 /contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py | |
parent | 03f024c4412e3aa613bb543cf1660176320ba8f4 (diff) | |
download | ydb-06e5c21a835c0e923506c4ff27929f34e00761c2.tar.gz |
fix ya.make
Diffstat (limited to 'contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py')
-rw-r--r-- | contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py | 297 |
1 files changed, 0 insertions, 297 deletions
diff --git a/contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py b/contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py deleted file mode 100644 index 2a30b09c21..0000000000 --- a/contrib/python/prompt-toolkit/py3/prompt_toolkit/formatted_text/ansi.py +++ /dev/null @@ -1,297 +0,0 @@ -from string import Formatter -from typing import Generator, List, Optional, Tuple, Union - -from prompt_toolkit.output.vt100 import BG_ANSI_COLORS, FG_ANSI_COLORS -from prompt_toolkit.output.vt100 import _256_colors as _256_colors_table - -from .base import StyleAndTextTuples - -__all__ = [ - "ANSI", - "ansi_escape", -] - - -class ANSI: - """ - ANSI formatted text. - Take something ANSI escaped text, for use as a formatted string. E.g. - - :: - - ANSI('\\x1b[31mhello \\x1b[32mworld') - - Characters between ``\\001`` and ``\\002`` are supposed to have a zero width - when printed, but these are literally sent to the terminal output. This can - be used for instance, for inserting Final Term prompt commands. They will - be translated into a prompt_toolkit '[ZeroWidthEscape]' fragment. - """ - - def __init__(self, value: str) -> None: - self.value = value - self._formatted_text: StyleAndTextTuples = [] - - # Default style attributes. - self._color: Optional[str] = None - self._bgcolor: Optional[str] = None - self._bold = False - self._underline = False - self._strike = False - self._italic = False - self._blink = False - self._reverse = False - self._hidden = False - - # Process received text. - parser = self._parse_corot() - parser.send(None) # type: ignore - for c in value: - parser.send(c) - - def _parse_corot(self) -> Generator[None, str, None]: - """ - Coroutine that parses the ANSI escape sequences. - """ - style = "" - formatted_text = self._formatted_text - - while True: - # NOTE: CSI is a special token within a stream of characters that - # introduces an ANSI control sequence used to set the - # style attributes of the following characters. - csi = False - - c = yield - - # Everything between \001 and \002 should become a ZeroWidthEscape. - if c == "\001": - escaped_text = "" - while c != "\002": - c = yield - if c == "\002": - formatted_text.append(("[ZeroWidthEscape]", escaped_text)) - c = yield - break - else: - escaped_text += c - - # Check for CSI - if c == "\x1b": - # Start of color escape sequence. - square_bracket = yield - if square_bracket == "[": - csi = True - else: - continue - elif c == "\x9b": - csi = True - - if csi: - # Got a CSI sequence. Color codes are following. - current = "" - params = [] - - while True: - char = yield - - # Construct number - if char.isdigit(): - current += char - - # Eval number - else: - # Limit and save number value - params.append(min(int(current or 0), 9999)) - - # Get delimiter token if present - if char == ";": - current = "" - - # Check and evaluate color codes - elif char == "m": - # Set attributes and token. - self._select_graphic_rendition(params) - style = self._create_style_string() - break - - # Check and evaluate cursor forward - elif char == "C": - for i in range(params[0]): - # add <SPACE> using current style - formatted_text.append((style, " ")) - break - - else: - # Ignore unsupported sequence. - break - else: - # Add current character. - # NOTE: At this point, we could merge the current character - # into the previous tuple if the style did not change, - # however, it's not worth the effort given that it will - # be "Exploded" once again when it's rendered to the - # output. - formatted_text.append((style, c)) - - def _select_graphic_rendition(self, attrs: List[int]) -> None: - """ - Taken a list of graphics attributes and apply changes. - """ - if not attrs: - attrs = [0] - else: - attrs = list(attrs[::-1]) - - while attrs: - attr = attrs.pop() - - if attr in _fg_colors: - self._color = _fg_colors[attr] - elif attr in _bg_colors: - self._bgcolor = _bg_colors[attr] - elif attr == 1: - self._bold = True - # elif attr == 2: - # self._faint = True - elif attr == 3: - self._italic = True - elif attr == 4: - self._underline = True - elif attr == 5: - self._blink = True # Slow blink - elif attr == 6: - self._blink = True # Fast blink - elif attr == 7: - self._reverse = True - elif attr == 8: - self._hidden = True - elif attr == 9: - self._strike = True - elif attr == 22: - self._bold = False # Normal intensity - elif attr == 23: - self._italic = False - elif attr == 24: - self._underline = False - elif attr == 25: - self._blink = False - elif attr == 27: - self._reverse = False - elif attr == 28: - self._hidden = False - elif attr == 29: - self._strike = False - elif not attr: - # Reset all style attributes - self._color = None - self._bgcolor = None - self._bold = False - self._underline = False - self._strike = False - self._italic = False - self._blink = False - self._reverse = False - self._hidden = False - - elif attr in (38, 48) and len(attrs) > 1: - n = attrs.pop() - - # 256 colors. - if n == 5 and len(attrs) >= 1: - if attr == 38: - m = attrs.pop() - self._color = _256_colors.get(m) - elif attr == 48: - m = attrs.pop() - self._bgcolor = _256_colors.get(m) - - # True colors. - if n == 2 and len(attrs) >= 3: - try: - color_str = "#{:02x}{:02x}{:02x}".format( - attrs.pop(), - attrs.pop(), - attrs.pop(), - ) - except IndexError: - pass - else: - if attr == 38: - self._color = color_str - elif attr == 48: - self._bgcolor = color_str - - def _create_style_string(self) -> str: - """ - Turn current style flags into a string for usage in a formatted text. - """ - result = [] - if self._color: - result.append(self._color) - if self._bgcolor: - result.append("bg:" + self._bgcolor) - if self._bold: - result.append("bold") - if self._underline: - result.append("underline") - if self._strike: - result.append("strike") - if self._italic: - result.append("italic") - if self._blink: - result.append("blink") - if self._reverse: - result.append("reverse") - if self._hidden: - result.append("hidden") - - return " ".join(result) - - def __repr__(self) -> str: - return f"ANSI({self.value!r})" - - def __pt_formatted_text__(self) -> StyleAndTextTuples: - return self._formatted_text - - def format(self, *args: str, **kwargs: str) -> "ANSI": - """ - Like `str.format`, but make sure that the arguments are properly - escaped. (No ANSI escapes can be injected.) - """ - return ANSI(FORMATTER.vformat(self.value, args, kwargs)) - - def __mod__(self, value: object) -> "ANSI": - """ - ANSI('<b>%s</b>') % value - """ - if not isinstance(value, tuple): - value = (value,) - - value = tuple(ansi_escape(i) for i in value) - return ANSI(self.value % value) - - -# Mapping of the ANSI color codes to their names. -_fg_colors = {v: k for k, v in FG_ANSI_COLORS.items()} -_bg_colors = {v: k for k, v in BG_ANSI_COLORS.items()} - -# Mapping of the escape codes for 256colors to their 'ffffff' value. -_256_colors = {} - -for i, (r, g, b) in enumerate(_256_colors_table.colors): - _256_colors[i] = f"#{r:02x}{g:02x}{b:02x}" - - -def ansi_escape(text: object) -> str: - """ - Replace characters with a special meaning. - """ - return str(text).replace("\x1b", "?").replace("\b", "?") - - -class ANSIFormatter(Formatter): - def format_field(self, value: object, format_spec: str) -> str: - return ansi_escape(format(value, format_spec)) - - -FORMATTER = ANSIFormatter() |