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path: root/scripts/automation/trex_control_plane/stl/examples/stl_path.py
blob: f190aab1c8f75e6e8350eb92d84283b0aa165f5e (plain) 
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import sys, os

# FIXME to the right path for trex_stl_lib 
sys.path.insert(0, "../")

STL_PROFILES_PATH = os.path.join(os.pardir, os.pardir, os.pardir, os.pardir, 'stl')
#008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
# This module contains abstractions for the input stream. You don't have to
# looks further, there are no pretty code.
#
# We define two classes here.
#
#   Mark(source, line, column)
# It's just a record and its only use is producing nice error messages.
# Parser does not use it for any other purposes.
#
#   Reader(source, data)
# Reader determines the encoding of `data` and converts it to unicode.
# Reader provides the following methods and attributes:
#   reader.peek(length=1) - return the next `length` characters
#   reader.forward(length=1) - move the current position to `length` characters.
#   reader.index - the number of the current character.
#   reader.line, stream.column - the line and the column of the current character.

__all__ = ['Reader', 'ReaderError']

from error import YAMLError, Mark

import codecs, re

class ReaderError(YAMLError):

    def __init__(self, name, position, character, encoding, reason):
        self.name = name
        self.character = character
        self.position = position
        self.encoding = encoding
        self.reason = reason

    def __str__(self):
        if isinstance(self.character, str):
            return "'%s' codec can't decode byte #x%02x: %s\n"  \
                    "  in \"%s\", position %d"    \
                    % (self.encoding, ord(self.character), self.reason,
                            self.name, self.position)
        else:
            return "unacceptable character #x%04x: %s\n"    \
                    "  in \"%s\", position %d"    \
                    % (self.character, self.reason,
                            self.name, self.position)

class Reader(object):
    # Reader:
    # - determines the data encoding and converts it to unicode,
    # - checks if characters are in allowed range,
    # - adds '\0' to the end.

    # Reader accepts
    #  - a `str` object,
    #  - a `unicode` object,
    #  - a file-like object with its `read` method returning `str`,
    #  - a file-like object with its `read` method returning `unicode`.

    # Yeah, it's ugly and slow.

    def __init__(self, stream):
        self.name = None
        self.stream = None
        self.stream_pointer = 0
        self.eof = True
        self.buffer = u''
        self.pointer = 0
        self.raw_buffer = None
        self.raw_decode = None
        self.encoding = None
        self.index = 0
        self.line = 0
        self.column = 0
        if isinstance(stream, unicode):
            self.name = "<unicode string>"
            self.check_printable(stream)
            self.buffer = stream+u'\0'
        elif isinstance(stream, str):
            self.name = "<string>"
            self.raw_buffer = stream
            self.determine_encoding()
        else:
            self.stream = stream
            self.name = getattr(stream, 'name', "<file>")
            self.eof = False
            self.raw_buffer = ''
            self.determine_encoding()

    def peek(self, index=0):
        try:
            return self.buffer[self.pointer+index]
        except IndexError:
            self.update(index+1)
            return self.buffer[self.pointer+index]

    def prefix(self, length=1):
        if self.pointer+length >= len(self.buffer):
            self.update(length)
        return self.buffer[self.pointer:self.pointer+length]

    def forward(self, length=1):
        if self.pointer+length+1 >= len(self.buffer):
            self.update(length+1)
        while length:
            ch = self.buffer[self.pointer]
            self.pointer += 1
            self.index += 1
            if ch in u'\n\x85\u2028\u2029'  \
                    or (ch == u'\r' and self.buffer[self.pointer] != u'\n'):
                self.line += 1
                self.column = 0
            elif ch != u'\uFEFF':
                self.column += 1
            length -= 1

    def get_mark(self):
        if self.stream is None:
            return Mark(self.name, self.index, self.line, self.column,
                    self.buffer, self.pointer)
        else:
            return Mark(self.name, self.index, self.line, self.column,
                    None, None)

    def determine_encoding(self):
        while not self.eof and len(self.raw_buffer) < 2:
            self.update_raw()
        if not isinstance(self.raw_buffer, unicode):
            if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
                self.raw_decode = codecs.utf_16_le_decode
                self.encoding = 'utf-16-le'
            elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
                self.raw_decode = codecs.utf_16_be_decode
                self.encoding = 'utf-16-be'
            else:
                self.raw_decode = codecs.utf_8_decode
                self.encoding = 'utf-8'
        self.update(1)

    NON_PRINTABLE = re.compile(u'[^\x09\x0A\x0D\x20-\x7E\x85\xA0-\uD7FF\uE000-\uFFFD]')
    def check_printable(self, data):
        match = self.NON_PRINTABLE.search(data)
        if match:
            character = match.group()
            position = self.index+(len(self.buffer)-self.pointer)+match.start()
            raise ReaderError(self.name, position, ord(character),
                    'unicode', "special characters are not allowed")

    def update(self, length):
        if self.raw_buffer is None:
            return
        self.buffer = self.buffer[self.pointer:]
        self.pointer = 0
        while len(self.buffer) < length:
            if not self.eof:
                self.update_raw()
            if self.raw_decode is not None:
                try:
                    data, converted = self.raw_decode(self.raw_buffer,
                            'strict', self.eof)
                except UnicodeDecodeError, exc:
                    character = exc.object[exc.start]
                    if self.stream is not None:
                        position = self.stream_pointer-len(self.raw_buffer)+exc.start
                    else:
                        position = exc.start
                    raise ReaderError(self.name, position, character,
                            exc.encoding, exc.reason)
            else:
                data = self.raw_buffer
                converted = len(data)
            self.check_printable(data)
            self.buffer += data
            self.raw_buffer = self.raw_buffer[converted:]
            if self.eof:
                self.buffer += u'\0'
                self.raw_buffer = None
                break

    def update_raw(self, size=1024):
        data = self.stream.read(size)
        if data:
            self.raw_buffer += data
            self.stream_pointer += len(data)
        else:
            self.eof = True

#try:
#    import psyco
#    psyco.bind(Reader)
#except ImportError:
#    pass