[50fdf12] | 1 | # |
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| 2 | # RTEMS Tools Project (http://www.rtems.org/) |
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| 3 | # Copyright 2010-2014 Chris Johns (chrisj@rtems.org) |
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| 4 | # All rights reserved. |
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| 5 | # |
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| 6 | # This file is part of the RTEMS Tools package in 'rtems-tools'. |
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| 7 | # |
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| 8 | # Redistribution and use in source and binary forms, with or without |
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| 9 | # modification, are permitted provided that the following conditions are met: |
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| 10 | # |
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| 11 | # 1. Redistributions of source code must retain the above copyright notice, |
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| 12 | # this list of conditions and the following disclaimer. |
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| 13 | # |
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| 14 | # 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | # this list of conditions and the following disclaimer in the documentation |
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| 16 | # and/or other materials provided with the distribution. |
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| 17 | # |
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| 18 | # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 19 | # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 20 | # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 21 | # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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| 22 | # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 23 | # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 24 | # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 25 | # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 26 | # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 27 | # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 28 | # POSSIBILITY OF SUCH DAMAGE. |
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| 29 | # |
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| 30 | |
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| 31 | # |
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| 32 | # Macro tables. |
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| 33 | # |
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| 34 | |
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| 35 | import copy |
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[b7d48ef] | 36 | import inspect |
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[50fdf12] | 37 | import re |
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| 38 | import os |
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| 39 | import string |
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| 40 | |
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| 41 | import error |
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| 42 | import path |
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| 43 | |
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| 44 | # |
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| 45 | # Macro tables |
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| 46 | # |
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| 47 | class macros: |
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| 48 | |
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| 49 | class macro_iterator: |
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| 50 | def __init__(self, keys): |
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| 51 | self.keys = keys |
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| 52 | self.index = 0 |
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| 53 | |
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| 54 | def __iter__(self): |
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| 55 | return self |
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| 56 | |
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| 57 | def next(self): |
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| 58 | if self.index < len(self.keys): |
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| 59 | key = self.keys[self.index] |
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| 60 | self.index += 1 |
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| 61 | return key |
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| 62 | raise StopIteration |
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| 63 | |
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| 64 | def iterkeys(self): |
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| 65 | return self.keys |
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| 66 | |
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| 67 | def __init__(self, name = None, original = None, rtdir = '.'): |
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| 68 | self.files = [] |
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| 69 | self.macro_filter = re.compile(r'%{[^}]+}') |
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| 70 | if original is None: |
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| 71 | self.macros = {} |
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| 72 | self.read_maps = [] |
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| 73 | self.read_map_locked = False |
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| 74 | self.write_map = 'global' |
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[b7d48ef] | 75 | self.rtpath = path.abspath(path.dirname(inspect.getfile(macros))) |
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| 76 | if path.dirname(self.rtpath).endswith('/share/rtems'): |
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| 77 | self.prefix = path.dirname(self.rtpath)[:-len('/share/rtems')] |
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| 78 | else: |
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| 79 | self.prefix = '.' |
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[50fdf12] | 80 | self.macros['global'] = {} |
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| 81 | self.macros['global']['nil'] = ('none', 'none', '') |
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[b7d48ef] | 82 | self.macros['global']['_cwd'] = ('dir', |
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| 83 | 'required', |
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| 84 | path.abspath(os.getcwd())) |
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| 85 | self.macros['global']['_prefix'] = ('dir', 'required', self.prefix) |
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| 86 | self.macros['global']['_rtdir'] = ('dir', |
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| 87 | 'required', |
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| 88 | path.abspath(self.expand(rtdir))) |
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| 89 | self.macros['global']['_rttop'] = ('dir', 'required', self.prefix) |
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[50fdf12] | 90 | else: |
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| 91 | self.macros = {} |
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| 92 | for m in original.macros: |
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| 93 | if m not in self.macros: |
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| 94 | self.macros[m] = {} |
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| 95 | for k in original.macros[m]: |
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| 96 | self.macros[m][k] = copy.copy(original.macros[m][k]) |
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| 97 | self.read_maps = sorted(copy.copy(original.read_maps)) |
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| 98 | self.read_map_locked = copy.copy(original.read_map_locked) |
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| 99 | self.write_map = copy.copy(original.write_map) |
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| 100 | if name is not None: |
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| 101 | self.load(name) |
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| 102 | |
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| 103 | def __copy__(self): |
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| 104 | return macros(original = self) |
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| 105 | |
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| 106 | def __str__(self): |
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| 107 | text_len = 80 |
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| 108 | text = '' |
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| 109 | for f in self.files: |
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| 110 | text += '> %s%s' % (f, os.linesep) |
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| 111 | for map in self.macros: |
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| 112 | if map in self.read_maps: |
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| 113 | if self.read_map_locked: |
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| 114 | rm = 'R' |
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| 115 | else: |
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| 116 | rm = 'r' |
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| 117 | else: |
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| 118 | rm = '-' |
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| 119 | if map == self.write_map: |
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| 120 | wm = 'w' |
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| 121 | else: |
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| 122 | wm = '-' |
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| 123 | text += '[%s] %s%s%s' % (map, rm, wm, os.linesep) |
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| 124 | for k in sorted(self.macros[map].keys()): |
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| 125 | d = self.macros[map][k] |
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| 126 | text += " %s:%s '%s'%s '%s'%s" % \ |
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| 127 | (k, ' ' * (20 - len(k)), |
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| 128 | d[0], ' ' * (8 - len(d[0])), |
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| 129 | d[1], ' ' * (10 - len(d[1]))) |
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| 130 | if len(d[2]) == 0: |
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| 131 | text += "''%s" % (os.linesep) |
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| 132 | else: |
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| 133 | if '\n' in d[2]: |
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| 134 | text += "'''" |
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| 135 | else: |
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| 136 | text += "'" |
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| 137 | indent = False |
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| 138 | ds = d[2].split('\n') |
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| 139 | lc = 0 |
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| 140 | for l in ds: |
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| 141 | lc += 1 |
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| 142 | while len(l): |
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| 143 | if indent: |
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| 144 | text += ' %21s %10s %12s' % (' ', ' ', ' ') |
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| 145 | text += l[0:text_len] |
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| 146 | l = l[text_len:] |
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| 147 | if len(l): |
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| 148 | text += ' \\' |
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| 149 | elif lc == len(ds): |
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| 150 | if len(ds) > 1: |
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| 151 | text += "'''" |
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| 152 | else: |
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| 153 | text += "'" |
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| 154 | text += '%s' % (os.linesep) |
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| 155 | indent = True |
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| 156 | return text |
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| 157 | |
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| 158 | def __iter__(self): |
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| 159 | return macros.macro_iterator(self.keys()) |
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| 160 | |
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| 161 | def __getitem__(self, key): |
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| 162 | macro = self.get(key) |
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| 163 | if macro is None or macro[1] == 'undefine': |
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| 164 | raise IndexError('key: %s' % (key)) |
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| 165 | return macro[2] |
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| 166 | |
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| 167 | def __setitem__(self, key, value): |
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| 168 | if type(key) is not str: |
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| 169 | raise TypeError('bad key type (want str): %s' % (type(key))) |
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| 170 | if type(value) is str: |
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| 171 | value = ('none', 'none', value) |
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| 172 | if type(value) is not tuple: |
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| 173 | raise TypeError('bad value type (want tuple): %s' % (type(value))) |
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| 174 | if len(value) != 3: |
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| 175 | raise TypeError('bad value tuple (len not 3): %d' % (len(value))) |
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| 176 | if type(value[0]) is not str: |
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| 177 | raise TypeError('bad value tuple type field: %s' % (type(value[0]))) |
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| 178 | if type(value[1]) is not str: |
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| 179 | raise TypeError('bad value tuple attrib field: %s' % (type(value[1]))) |
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| 180 | if type(value[2]) is not str: |
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| 181 | raise TypeError('bad value tuple value field: %s' % (type(value[2]))) |
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| 182 | if value[0] not in ['none', 'triplet', 'dir', 'file', 'exe']: |
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| 183 | raise TypeError('bad value tuple (type field): %s' % (value[0])) |
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| 184 | if value[1] not in ['none', 'optional', 'required', |
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| 185 | 'override', 'undefine', 'convert']: |
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| 186 | raise TypeError('bad value tuple (attrib field): %s' % (value[1])) |
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| 187 | if value[1] == 'convert': |
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| 188 | value = self.expand(value) |
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| 189 | self.macros[self.write_map][self.key_filter(key)] = value |
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| 190 | |
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| 191 | def __delitem__(self, key): |
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| 192 | self.undefine(key) |
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| 193 | |
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| 194 | def __contains__(self, key): |
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| 195 | return self.has_key(key) |
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| 196 | |
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| 197 | def __len__(self): |
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| 198 | return len(self.keys()) |
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| 199 | |
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| 200 | def keys(self): |
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| 201 | keys = self.macros['global'].keys() |
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| 202 | for rm in self.get_read_maps(): |
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| 203 | for mk in self.macros[rm]: |
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| 204 | if self.macros[rm][mk][1] == 'undefine': |
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| 205 | if mk in keys: |
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| 206 | keys.remove(mk) |
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| 207 | else: |
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| 208 | keys.append(mk) |
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| 209 | return sorted(set(keys)) |
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| 210 | |
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| 211 | def has_key(self, key): |
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| 212 | if type(key) is not str: |
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| 213 | raise TypeError('bad key type (want str): %s' % (type(key))) |
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| 214 | if self.key_filter(key) not in self.keys(): |
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| 215 | return False |
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| 216 | return True |
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| 217 | |
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| 218 | def maps(self): |
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| 219 | return self.macros.keys() |
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| 220 | |
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| 221 | def get_read_maps(self): |
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| 222 | return [rm[5:] for rm in self.read_maps] |
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| 223 | |
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| 224 | def key_filter(self, key): |
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| 225 | if key.startswith('%{') and key[-1] is '}': |
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| 226 | key = key[2:-1] |
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| 227 | return key.lower() |
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| 228 | |
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| 229 | def parse(self, lines): |
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| 230 | |
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| 231 | def _clean(l): |
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| 232 | if '#' in l: |
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| 233 | l = l[:l.index('#')] |
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| 234 | if '\r' in l: |
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| 235 | l = l[:l.index('r')] |
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| 236 | if '\n' in l: |
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| 237 | l = l[:l.index('\n')] |
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| 238 | return l.strip() |
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| 239 | |
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| 240 | trace_me = False |
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| 241 | if trace_me: |
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[04a5204] | 242 | print('[[[[]]]] parsing macros') |
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[50fdf12] | 243 | orig_macros = copy.copy(self.macros) |
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| 244 | map = 'global' |
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| 245 | lc = 0 |
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| 246 | state = 'key' |
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| 247 | token = '' |
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| 248 | macro = [] |
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| 249 | for l in lines: |
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| 250 | lc += 1 |
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| 251 | #print 'l:%s' % (l[:-1]) |
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| 252 | if len(l) == 0: |
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| 253 | continue |
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| 254 | l_remaining = l |
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| 255 | for c in l: |
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| 256 | if trace_me: |
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[04a5204] | 257 | print(']]]]]]]] c:%s(%d) s:%s t:"%s" m:%r M:%s' % \ |
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| 258 | (c, ord(c), state, token, macro, map)) |
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[50fdf12] | 259 | l_remaining = l_remaining[1:] |
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| 260 | if c is '#' and not state.startswith('value'): |
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| 261 | break |
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| 262 | if c == '\n' or c == '\r': |
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| 263 | if not (state is 'key' and len(token) == 0) and \ |
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| 264 | not state.startswith('value-multiline'): |
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| 265 | self.macros = orig_macros |
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| 266 | raise error.general('malformed macro line:%d: %s' % (lc, l)) |
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| 267 | if state is 'key': |
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| 268 | if c not in string.whitespace: |
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| 269 | if c is '[': |
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| 270 | state = 'map' |
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| 271 | elif c is '%': |
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| 272 | state = 'directive' |
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| 273 | elif c is ':': |
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| 274 | macro += [token] |
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| 275 | token = '' |
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| 276 | state = 'attribs' |
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| 277 | elif c is '#': |
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| 278 | break |
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| 279 | else: |
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| 280 | token += c |
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| 281 | elif state is 'map': |
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| 282 | if c is ']': |
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| 283 | if token not in self.macros: |
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| 284 | self.macros[token] = {} |
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| 285 | map = token |
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| 286 | token = '' |
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| 287 | state = 'key' |
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| 288 | elif c in string.printable and c not in string.whitespace: |
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| 289 | token += c |
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| 290 | else: |
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| 291 | self.macros = orig_macros |
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| 292 | raise error.general('invalid macro map:%d: %s' % (lc, l)) |
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| 293 | elif state is 'directive': |
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| 294 | if c in string.whitespace: |
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| 295 | if token == 'include': |
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| 296 | self.load(_clean(l_remaining)) |
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| 297 | token = '' |
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| 298 | state = 'key' |
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| 299 | break |
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| 300 | elif c in string.printable and c not in string.whitespace: |
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| 301 | token += c |
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| 302 | else: |
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| 303 | self.macros = orig_macros |
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| 304 | raise error.general('invalid macro directive:%d: %s' % (lc, l)) |
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| 305 | elif state is 'include': |
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| 306 | if c is string.whitespace: |
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| 307 | if token == 'include': |
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| 308 | state = 'include' |
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| 309 | elif c in string.printable and c not in string.whitespace: |
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| 310 | token += c |
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| 311 | else: |
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| 312 | self.macros = orig_macros |
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| 313 | raise error.general('invalid macro directive:%d: %s' % (lc, l)) |
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| 314 | elif state is 'attribs': |
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| 315 | if c not in string.whitespace: |
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| 316 | if c is ',': |
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| 317 | macro += [token] |
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| 318 | token = '' |
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| 319 | if len(macro) == 3: |
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| 320 | state = 'value-start' |
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| 321 | else: |
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| 322 | token += c |
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| 323 | elif state is 'value-start': |
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| 324 | if c is "'": |
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| 325 | state = 'value-line-start' |
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| 326 | elif state is 'value-line-start': |
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| 327 | if c is "'": |
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| 328 | state = 'value-multiline-start' |
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| 329 | else: |
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| 330 | state = 'value-line' |
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| 331 | token += c |
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| 332 | elif state is 'value-multiline-start': |
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| 333 | if c is "'": |
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| 334 | state = 'value-multiline' |
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| 335 | else: |
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| 336 | macro += [token] |
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| 337 | state = 'macro' |
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| 338 | elif state is 'value-line': |
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| 339 | if c is "'": |
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| 340 | macro += [token] |
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| 341 | state = 'macro' |
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| 342 | else: |
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| 343 | token += c |
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| 344 | elif state is 'value-multiline': |
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| 345 | if c is "'": |
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| 346 | state = 'value-multiline-end' |
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| 347 | else: |
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| 348 | token += c |
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| 349 | elif state is 'value-multiline-end': |
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| 350 | if c is "'": |
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| 351 | state = 'value-multiline-end-end' |
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| 352 | else: |
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| 353 | state = 'value-multiline' |
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| 354 | token += "'" + c |
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| 355 | elif state is 'value-multiline-end-end': |
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| 356 | if c is "'": |
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| 357 | macro += [token] |
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| 358 | state = 'macro' |
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| 359 | else: |
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| 360 | state = 'value-multiline' |
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| 361 | token += "''" + c |
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| 362 | else: |
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| 363 | self.macros = orig_macros |
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| 364 | raise error.internal('bad state: %s' % (state)) |
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| 365 | if state is 'macro': |
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| 366 | self.macros[map][macro[0].lower()] = (macro[1], macro[2], macro[3]) |
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| 367 | macro = [] |
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| 368 | token = '' |
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| 369 | state = 'key' |
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| 370 | |
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| 371 | def load(self, name): |
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| 372 | names = self.expand(name).split(':') |
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| 373 | for n in names: |
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| 374 | if path.exists(n): |
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| 375 | try: |
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| 376 | mc = open(path.host(n), 'r') |
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| 377 | macros = self.parse(mc) |
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| 378 | mc.close() |
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| 379 | self.files += [n] |
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| 380 | return |
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[04a5204] | 381 | except IOError as err: |
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[50fdf12] | 382 | pass |
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| 383 | raise error.general('opening macro file: %s' % \ |
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| 384 | (path.host(self.expand(name)))) |
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| 385 | |
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| 386 | def get(self, key): |
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| 387 | if type(key) is not str: |
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| 388 | raise TypeError('bad key type: %s' % (type(key))) |
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| 389 | key = self.key_filter(key) |
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| 390 | for rm in self.get_read_maps(): |
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| 391 | if key in self.macros[rm]: |
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| 392 | return self.macros[rm][key] |
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| 393 | if key in self.macros['global']: |
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| 394 | return self.macros['global'][key] |
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| 395 | return None |
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| 396 | |
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| 397 | def get_type(self, key): |
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| 398 | m = self.get(key) |
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| 399 | if m is None: |
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| 400 | return None |
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| 401 | return m[0] |
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| 402 | |
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| 403 | def get_attribute(self, key): |
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| 404 | m = self.get(key) |
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| 405 | if m is None: |
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| 406 | return None |
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| 407 | return m[1] |
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| 408 | |
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| 409 | def get_value(self, key): |
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| 410 | m = self.get(key) |
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| 411 | if m is None: |
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| 412 | return None |
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| 413 | return m[2] |
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| 414 | |
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| 415 | def overridden(self, key): |
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| 416 | return self.get_attribute(key) == 'override' |
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| 417 | |
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| 418 | def define(self, key, value = '1'): |
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| 419 | if type(key) is not str: |
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| 420 | raise TypeError('bad key type: %s' % (type(key))) |
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| 421 | self.__setitem__(key, ('none', 'none', value)) |
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| 422 | |
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| 423 | def undefine(self, key): |
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| 424 | if type(key) is not str: |
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| 425 | raise TypeError('bad key type: %s' % (type(key))) |
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| 426 | key = self.key_filter(key) |
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| 427 | for map in self.macros: |
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| 428 | if key in self.macros[map]: |
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| 429 | del self.macros[map][key] |
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| 430 | |
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| 431 | def expand(self, _str): |
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| 432 | """Simple basic expander of config file macros.""" |
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[b7d48ef] | 433 | start_str = _str |
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[50fdf12] | 434 | expanded = True |
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[b7d48ef] | 435 | count = 0 |
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[50fdf12] | 436 | while expanded: |
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[b7d48ef] | 437 | count += 1 |
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| 438 | if count > 1000: |
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| 439 | raise error.general('expansion looped over 1000 times "%s"' % |
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| 440 | (start_str)) |
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[50fdf12] | 441 | expanded = False |
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| 442 | for m in self.macro_filter.findall(_str): |
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| 443 | name = m[2:-1] |
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| 444 | macro = self.get(name) |
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| 445 | if macro is None: |
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| 446 | raise error.general('cannot expand default macro: %s in "%s"' % |
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| 447 | (m, _str)) |
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| 448 | _str = _str.replace(m, macro[2]) |
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| 449 | expanded = True |
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| 450 | return _str |
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| 451 | |
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| 452 | def find(self, regex): |
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| 453 | what = re.compile(regex) |
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| 454 | keys = [] |
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| 455 | for key in self.keys(): |
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| 456 | if what.match(key): |
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| 457 | keys += [key] |
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| 458 | return keys |
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| 459 | |
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| 460 | def set_read_map(self, _map): |
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| 461 | if not self.read_map_locked: |
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| 462 | if _map in self.macros: |
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| 463 | if _map not in self.get_read_maps(): |
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| 464 | rm = '%04d_%s' % (len(self.read_maps), _map) |
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| 465 | self.read_maps = sorted(self.read_maps + [rm]) |
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| 466 | return True |
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| 467 | return False |
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| 468 | |
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| 469 | def unset_read_map(self, _map): |
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| 470 | if not self.read_map_locked: |
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| 471 | if _map in self.get_read_maps(): |
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| 472 | for i in range(0, len(self.read_maps)): |
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| 473 | if '%04d_%s' % (i, _map) == self.read_maps[i]: |
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| 474 | self.read_maps.pop(i) |
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| 475 | return True |
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| 476 | return False |
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| 477 | |
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| 478 | def set_write_map(self, map): |
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| 479 | if map in self.macros: |
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| 480 | self.write_map = map |
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| 481 | return True |
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| 482 | return False |
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| 483 | |
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| 484 | def lock_read_map(self): |
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| 485 | self.read_map_locked = True |
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| 486 | |
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| 487 | def unlock_read_map(self): |
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| 488 | self.read_map_locked = False |
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| 489 | |
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| 490 | if __name__ == "__main__": |
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| 491 | import copy |
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| 492 | import sys |
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[04a5204] | 493 | print(inspect.getfile(macros)) |
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[50fdf12] | 494 | m = macros(name = 'defaults.mc') |
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| 495 | d = copy.copy(m) |
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| 496 | m['test1'] = 'something' |
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| 497 | if d.has_key('test1'): |
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[04a5204] | 498 | print('error: copy failed.') |
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[50fdf12] | 499 | sys.exit(1) |
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| 500 | m.parse("[test]\n" \ |
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| 501 | "test1: none, undefine, ''\n" \ |
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| 502 | "name: none, override, 'pink'\n") |
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[04a5204] | 503 | print('set test:', m.set_read_map('test')) |
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[50fdf12] | 504 | if m['name'] != 'pink': |
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[04a5204] | 505 | print('error: override failed. name is %s' % (m['name'])) |
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[50fdf12] | 506 | sys.exit(1) |
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| 507 | if m.has_key('test1'): |
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[04a5204] | 508 | print('error: map undefine failed.') |
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[50fdf12] | 509 | sys.exit(1) |
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[04a5204] | 510 | print('unset test:', m.unset_read_map('test')) |
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| 511 | print(m) |
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| 512 | print(m.keys()) |
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