[Feature][YUKUAI_patch]add 18.02 code
Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No
Change-Id: I7f71153004f10fc0ea5adfa083866aaeeb1053ac
diff --git a/rootfs/usr/lib/python3.8/distutils/text_file.py b/rootfs/usr/lib/python3.8/distutils/text_file.py
new file mode 100644
index 0000000..93abad3
--- /dev/null
+++ b/rootfs/usr/lib/python3.8/distutils/text_file.py
@@ -0,0 +1,286 @@
+"""text_file
+
+provides the TextFile class, which gives an interface to text files
+that (optionally) takes care of stripping comments, ignoring blank
+lines, and joining lines with backslashes."""
+
+import sys, io
+
+
+class TextFile:
+ """Provides a file-like object that takes care of all the things you
+ commonly want to do when processing a text file that has some
+ line-by-line syntax: strip comments (as long as "#" is your
+ comment character), skip blank lines, join adjacent lines by
+ escaping the newline (ie. backslash at end of line), strip
+ leading and/or trailing whitespace. All of these are optional
+ and independently controllable.
+
+ Provides a 'warn()' method so you can generate warning messages that
+ report physical line number, even if the logical line in question
+ spans multiple physical lines. Also provides 'unreadline()' for
+ implementing line-at-a-time lookahead.
+
+ Constructor is called as:
+
+ TextFile (filename=None, file=None, **options)
+
+ It bombs (RuntimeError) if both 'filename' and 'file' are None;
+ 'filename' should be a string, and 'file' a file object (or
+ something that provides 'readline()' and 'close()' methods). It is
+ recommended that you supply at least 'filename', so that TextFile
+ can include it in warning messages. If 'file' is not supplied,
+ TextFile creates its own using 'io.open()'.
+
+ The options are all boolean, and affect the value returned by
+ 'readline()':
+ strip_comments [default: true]
+ strip from "#" to end-of-line, as well as any whitespace
+ leading up to the "#" -- unless it is escaped by a backslash
+ lstrip_ws [default: false]
+ strip leading whitespace from each line before returning it
+ rstrip_ws [default: true]
+ strip trailing whitespace (including line terminator!) from
+ each line before returning it
+ skip_blanks [default: true}
+ skip lines that are empty *after* stripping comments and
+ whitespace. (If both lstrip_ws and rstrip_ws are false,
+ then some lines may consist of solely whitespace: these will
+ *not* be skipped, even if 'skip_blanks' is true.)
+ join_lines [default: false]
+ if a backslash is the last non-newline character on a line
+ after stripping comments and whitespace, join the following line
+ to it to form one "logical line"; if N consecutive lines end
+ with a backslash, then N+1 physical lines will be joined to
+ form one logical line.
+ collapse_join [default: false]
+ strip leading whitespace from lines that are joined to their
+ predecessor; only matters if (join_lines and not lstrip_ws)
+ errors [default: 'strict']
+ error handler used to decode the file content
+
+ Note that since 'rstrip_ws' can strip the trailing newline, the
+ semantics of 'readline()' must differ from those of the builtin file
+ object's 'readline()' method! In particular, 'readline()' returns
+ None for end-of-file: an empty string might just be a blank line (or
+ an all-whitespace line), if 'rstrip_ws' is true but 'skip_blanks' is
+ not."""
+
+ default_options = { 'strip_comments': 1,
+ 'skip_blanks': 1,
+ 'lstrip_ws': 0,
+ 'rstrip_ws': 1,
+ 'join_lines': 0,
+ 'collapse_join': 0,
+ 'errors': 'strict',
+ }
+
+ def __init__(self, filename=None, file=None, **options):
+ """Construct a new TextFile object. At least one of 'filename'
+ (a string) and 'file' (a file-like object) must be supplied.
+ They keyword argument options are described above and affect
+ the values returned by 'readline()'."""
+ if filename is None and file is None:
+ raise RuntimeError("you must supply either or both of 'filename' and 'file'")
+
+ # set values for all options -- either from client option hash
+ # or fallback to default_options
+ for opt in self.default_options.keys():
+ if opt in options:
+ setattr(self, opt, options[opt])
+ else:
+ setattr(self, opt, self.default_options[opt])
+
+ # sanity check client option hash
+ for opt in options.keys():
+ if opt not in self.default_options:
+ raise KeyError("invalid TextFile option '%s'" % opt)
+
+ if file is None:
+ self.open(filename)
+ else:
+ self.filename = filename
+ self.file = file
+ self.current_line = 0 # assuming that file is at BOF!
+
+ # 'linebuf' is a stack of lines that will be emptied before we
+ # actually read from the file; it's only populated by an
+ # 'unreadline()' operation
+ self.linebuf = []
+
+ def open(self, filename):
+ """Open a new file named 'filename'. This overrides both the
+ 'filename' and 'file' arguments to the constructor."""
+ self.filename = filename
+ self.file = io.open(self.filename, 'r', errors=self.errors)
+ self.current_line = 0
+
+ def close(self):
+ """Close the current file and forget everything we know about it
+ (filename, current line number)."""
+ file = self.file
+ self.file = None
+ self.filename = None
+ self.current_line = None
+ file.close()
+
+ def gen_error(self, msg, line=None):
+ outmsg = []
+ if line is None:
+ line = self.current_line
+ outmsg.append(self.filename + ", ")
+ if isinstance(line, (list, tuple)):
+ outmsg.append("lines %d-%d: " % tuple(line))
+ else:
+ outmsg.append("line %d: " % line)
+ outmsg.append(str(msg))
+ return "".join(outmsg)
+
+ def error(self, msg, line=None):
+ raise ValueError("error: " + self.gen_error(msg, line))
+
+ def warn(self, msg, line=None):
+ """Print (to stderr) a warning message tied to the current logical
+ line in the current file. If the current logical line in the
+ file spans multiple physical lines, the warning refers to the
+ whole range, eg. "lines 3-5". If 'line' supplied, it overrides
+ the current line number; it may be a list or tuple to indicate a
+ range of physical lines, or an integer for a single physical
+ line."""
+ sys.stderr.write("warning: " + self.gen_error(msg, line) + "\n")
+
+ def readline(self):
+ """Read and return a single logical line from the current file (or
+ from an internal buffer if lines have previously been "unread"
+ with 'unreadline()'). If the 'join_lines' option is true, this
+ may involve reading multiple physical lines concatenated into a
+ single string. Updates the current line number, so calling
+ 'warn()' after 'readline()' emits a warning about the physical
+ line(s) just read. Returns None on end-of-file, since the empty
+ string can occur if 'rstrip_ws' is true but 'strip_blanks' is
+ not."""
+ # If any "unread" lines waiting in 'linebuf', return the top
+ # one. (We don't actually buffer read-ahead data -- lines only
+ # get put in 'linebuf' if the client explicitly does an
+ # 'unreadline()'.
+ if self.linebuf:
+ line = self.linebuf[-1]
+ del self.linebuf[-1]
+ return line
+
+ buildup_line = ''
+
+ while True:
+ # read the line, make it None if EOF
+ line = self.file.readline()
+ if line == '':
+ line = None
+
+ if self.strip_comments and line:
+
+ # Look for the first "#" in the line. If none, never
+ # mind. If we find one and it's the first character, or
+ # is not preceded by "\", then it starts a comment --
+ # strip the comment, strip whitespace before it, and
+ # carry on. Otherwise, it's just an escaped "#", so
+ # unescape it (and any other escaped "#"'s that might be
+ # lurking in there) and otherwise leave the line alone.
+
+ pos = line.find("#")
+ if pos == -1: # no "#" -- no comments
+ pass
+
+ # It's definitely a comment -- either "#" is the first
+ # character, or it's elsewhere and unescaped.
+ elif pos == 0 or line[pos-1] != "\\":
+ # Have to preserve the trailing newline, because it's
+ # the job of a later step (rstrip_ws) to remove it --
+ # and if rstrip_ws is false, we'd better preserve it!
+ # (NB. this means that if the final line is all comment
+ # and has no trailing newline, we will think that it's
+ # EOF; I think that's OK.)
+ eol = (line[-1] == '\n') and '\n' or ''
+ line = line[0:pos] + eol
+
+ # If all that's left is whitespace, then skip line
+ # *now*, before we try to join it to 'buildup_line' --
+ # that way constructs like
+ # hello \\
+ # # comment that should be ignored
+ # there
+ # result in "hello there".
+ if line.strip() == "":
+ continue
+ else: # it's an escaped "#"
+ line = line.replace("\\#", "#")
+
+ # did previous line end with a backslash? then accumulate
+ if self.join_lines and buildup_line:
+ # oops: end of file
+ if line is None:
+ self.warn("continuation line immediately precedes "
+ "end-of-file")
+ return buildup_line
+
+ if self.collapse_join:
+ line = line.lstrip()
+ line = buildup_line + line
+
+ # careful: pay attention to line number when incrementing it
+ if isinstance(self.current_line, list):
+ self.current_line[1] = self.current_line[1] + 1
+ else:
+ self.current_line = [self.current_line,
+ self.current_line + 1]
+ # just an ordinary line, read it as usual
+ else:
+ if line is None: # eof
+ return None
+
+ # still have to be careful about incrementing the line number!
+ if isinstance(self.current_line, list):
+ self.current_line = self.current_line[1] + 1
+ else:
+ self.current_line = self.current_line + 1
+
+ # strip whitespace however the client wants (leading and
+ # trailing, or one or the other, or neither)
+ if self.lstrip_ws and self.rstrip_ws:
+ line = line.strip()
+ elif self.lstrip_ws:
+ line = line.lstrip()
+ elif self.rstrip_ws:
+ line = line.rstrip()
+
+ # blank line (whether we rstrip'ed or not)? skip to next line
+ # if appropriate
+ if (line == '' or line == '\n') and self.skip_blanks:
+ continue
+
+ if self.join_lines:
+ if line[-1] == '\\':
+ buildup_line = line[:-1]
+ continue
+
+ if line[-2:] == '\\\n':
+ buildup_line = line[0:-2] + '\n'
+ continue
+
+ # well, I guess there's some actual content there: return it
+ return line
+
+ def readlines(self):
+ """Read and return the list of all logical lines remaining in the
+ current file."""
+ lines = []
+ while True:
+ line = self.readline()
+ if line is None:
+ return lines
+ lines.append(line)
+
+ def unreadline(self, line):
+ """Push 'line' (a string) onto an internal buffer that will be
+ checked by future 'readline()' calls. Handy for implementing
+ a parser with line-at-a-time lookahead."""
+ self.linebuf.append(line)