Mercurial > hg
annotate mercurial/revsetlang.py @ 31758:04ec317b8128
hgweb: expose a followlines UI in filerevision view
In filerevision view (/file/<rev>/<fname>) we add some event listeners on
mouse clicks of <span> elements in the <pre class="sourcelines"> block.
Those listeners will capture a range of lines selected between two mouse
clicks and a box inviting to follow the history of selected lines will then
show up. Selected lines (i.e. the block of lines) get a CSS class which make
them highlighted. Selection can be cancelled (and restarted) by either
clicking on the cancel ("x") button in the invite box or clicking on any other
source line. Also clicking twice on the same line will abort the selection and
reset event listeners to restart the process.
As a first step, this action is only advertised by the "cursor: cell" CSS rule
on source lines elements as any other mechanisms would make the code
significantly more complicated. This might be improved later.
All JavaScript code lives in a new "linerangelog.js" file, sourced in
filerevision template (only in "paper" style for now).
author | Denis Laxalde <denis.laxalde@logilab.fr> |
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date | Wed, 29 Mar 2017 22:26:16 +0200 |
parents | f3b151278655 |
children | c63cb2d10d6d |
rev | line source |
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1 # revsetlang.py - parser, tokenizer and utility for revision set language |
11275 | 2 # |
3 # Copyright 2010 Matt Mackall <mpm@selenic.com> | |
4 # | |
5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 | |
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8 from __future__ import absolute_import |
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9 |
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10 import string |
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11 |
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12 from .i18n import _ |
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13 from . import ( |
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14 error, |
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15 node, |
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16 parser, |
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17 pycompat, |
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18 util, |
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19 ) |
11275 | 20 |
21 elements = { | |
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22 # token-type: binding-strength, primary, prefix, infix, suffix |
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23 "(": (21, None, ("group", 1, ")"), ("func", 1, ")"), None), |
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24 "##": (20, None, None, ("_concat", 20), None), |
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25 "~": (18, None, None, ("ancestor", 18), None), |
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26 "^": (18, None, None, ("parent", 18), "parentpost"), |
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27 "-": (5, None, ("negate", 19), ("minus", 5), None), |
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28 "::": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"), |
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29 "..": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"), |
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30 ":": (15, "rangeall", ("rangepre", 15), ("range", 15), "rangepost"), |
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31 "not": (10, None, ("not", 10), None, None), |
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32 "!": (10, None, ("not", 10), None, None), |
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33 "and": (5, None, None, ("and", 5), None), |
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34 "&": (5, None, None, ("and", 5), None), |
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35 "%": (5, None, None, ("only", 5), "onlypost"), |
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36 "or": (4, None, None, ("or", 4), None), |
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37 "|": (4, None, None, ("or", 4), None), |
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38 "+": (4, None, None, ("or", 4), None), |
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39 "=": (3, None, None, ("keyvalue", 3), None), |
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40 ",": (2, None, None, ("list", 2), None), |
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41 ")": (0, None, None, None, None), |
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42 "symbol": (0, "symbol", None, None, None), |
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43 "string": (0, "string", None, None, None), |
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44 "end": (0, None, None, None, None), |
11275 | 45 } |
46 | |
47 keywords = set(['and', 'or', 'not']) | |
48 | |
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49 _quoteletters = set(['"', "'"]) |
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50 _simpleopletters = set(pycompat.iterbytestr("():=,-|&+!~^%")) |
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51 |
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52 # default set of valid characters for the initial letter of symbols |
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53 _syminitletters = set(pycompat.iterbytestr( |
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54 string.ascii_letters.encode('ascii') + |
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55 string.digits.encode('ascii') + |
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56 '._@')) | set(map(pycompat.bytechr, xrange(128, 256))) |
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57 |
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58 # default set of valid characters for non-initial letters of symbols |
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59 _symletters = _syminitletters | set(pycompat.iterbytestr('-/')) |
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60 |
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61 def tokenize(program, lookup=None, syminitletters=None, symletters=None): |
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62 ''' |
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63 Parse a revset statement into a stream of tokens |
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64 |
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65 ``syminitletters`` is the set of valid characters for the initial |
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66 letter of symbols. |
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67 |
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68 By default, character ``c`` is recognized as valid for initial |
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69 letter of symbols, if ``c.isalnum() or c in '._@' or ord(c) > 127``. |
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70 |
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71 ``symletters`` is the set of valid characters for non-initial |
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72 letters of symbols. |
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73 |
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74 By default, character ``c`` is recognized as valid for non-initial |
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75 letters of symbols, if ``c.isalnum() or c in '-._/@' or ord(c) > 127``. |
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76 |
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77 Check that @ is a valid unquoted token character (issue3686): |
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78 >>> list(tokenize("@::")) |
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79 [('symbol', '@', 0), ('::', None, 1), ('end', None, 3)] |
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80 |
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81 ''' |
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82 program = pycompat.bytestr(program) |
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83 if syminitletters is None: |
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84 syminitletters = _syminitletters |
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85 if symletters is None: |
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86 symletters = _symletters |
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87 |
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88 if program and lookup: |
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89 # attempt to parse old-style ranges first to deal with |
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90 # things like old-tag which contain query metacharacters |
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91 parts = program.split(':', 1) |
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92 if all(lookup(sym) for sym in parts if sym): |
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93 if parts[0]: |
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94 yield ('symbol', parts[0], 0) |
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95 if len(parts) > 1: |
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96 s = len(parts[0]) |
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97 yield (':', None, s) |
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98 if parts[1]: |
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99 yield ('symbol', parts[1], s + 1) |
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100 yield ('end', None, len(program)) |
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101 return |
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102 |
11275 | 103 pos, l = 0, len(program) |
104 while pos < l: | |
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105 c = program[pos] |
11275 | 106 if c.isspace(): # skip inter-token whitespace |
107 pass | |
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108 elif c == ':' and program[pos:pos + 2] == '::': # look ahead carefully |
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109 yield ('::', None, pos) |
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110 pos += 1 # skip ahead |
11275 | 111 elif c == '.' and program[pos:pos + 2] == '..': # look ahead carefully |
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112 yield ('..', None, pos) |
11275 | 113 pos += 1 # skip ahead |
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114 elif c == '#' and program[pos:pos + 2] == '##': # look ahead carefully |
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115 yield ('##', None, pos) |
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116 pos += 1 # skip ahead |
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117 elif c in _simpleopletters: # handle simple operators |
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118 yield (c, None, pos) |
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119 elif (c in _quoteletters or c == 'r' and |
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120 program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings |
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121 if c == 'r': |
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122 pos += 1 |
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123 c = program[pos] |
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124 decode = lambda x: x |
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125 else: |
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126 decode = parser.unescapestr |
11275 | 127 pos += 1 |
128 s = pos | |
129 while pos < l: # find closing quote | |
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130 d = program[pos] |
11275 | 131 if d == '\\': # skip over escaped characters |
132 pos += 2 | |
133 continue | |
134 if d == c: | |
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135 yield ('string', decode(program[s:pos]), s) |
11275 | 136 break |
137 pos += 1 | |
138 else: | |
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139 raise error.ParseError(_("unterminated string"), s) |
16683 | 140 # gather up a symbol/keyword |
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141 elif c in syminitletters: |
11275 | 142 s = pos |
143 pos += 1 | |
144 while pos < l: # find end of symbol | |
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145 d = program[pos] |
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146 if d not in symletters: |
11275 | 147 break |
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148 if d == '.' and program[pos - 1] == '.': # special case for .. |
11275 | 149 pos -= 1 |
150 break | |
151 pos += 1 | |
152 sym = program[s:pos] | |
153 if sym in keywords: # operator keywords | |
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154 yield (sym, None, s) |
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155 elif '-' in sym: |
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156 # some jerk gave us foo-bar-baz, try to check if it's a symbol |
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157 if lookup and lookup(sym): |
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158 # looks like a real symbol |
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159 yield ('symbol', sym, s) |
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160 else: |
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161 # looks like an expression |
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162 parts = sym.split('-') |
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163 for p in parts[:-1]: |
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164 if p: # possible consecutive - |
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165 yield ('symbol', p, s) |
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166 s += len(p) |
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167 yield ('-', None, pos) |
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168 s += 1 |
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169 if parts[-1]: # possible trailing - |
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170 yield ('symbol', parts[-1], s) |
11275 | 171 else: |
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172 yield ('symbol', sym, s) |
11275 | 173 pos -= 1 |
174 else: | |
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175 raise error.ParseError(_("syntax error in revset '%s'") % |
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176 program, pos) |
11275 | 177 pos += 1 |
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178 yield ('end', None, pos) |
11275 | 179 |
180 # helpers | |
181 | |
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182 _notset = object() |
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183 |
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184 def getsymbol(x): |
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185 if x and x[0] == 'symbol': |
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186 return x[1] |
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187 raise error.ParseError(_('not a symbol')) |
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188 |
11275 | 189 def getstring(x, err): |
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190 if x and (x[0] == 'string' or x[0] == 'symbol'): |
11275 | 191 return x[1] |
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192 raise error.ParseError(err) |
11275 | 193 |
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194 def getinteger(x, err, default=_notset): |
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195 if not x and default is not _notset: |
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196 return default |
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197 try: |
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198 return int(getstring(x, err)) |
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199 except ValueError: |
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200 raise error.ParseError(err) |
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201 |
11275 | 202 def getlist(x): |
203 if not x: | |
204 return [] | |
205 if x[0] == 'list': | |
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206 return list(x[1:]) |
11275 | 207 return [x] |
208 | |
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209 def getrange(x, err): |
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210 if not x: |
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211 raise error.ParseError(err) |
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212 op = x[0] |
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213 if op == 'range': |
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214 return x[1], x[2] |
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215 elif op == 'rangepre': |
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216 return None, x[1] |
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217 elif op == 'rangepost': |
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218 return x[1], None |
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219 elif op == 'rangeall': |
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220 return None, None |
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221 raise error.ParseError(err) |
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222 |
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223 def getargs(x, min, max, err): |
11275 | 224 l = getlist(x) |
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225 if len(l) < min or (max >= 0 and len(l) > max): |
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226 raise error.ParseError(err) |
11275 | 227 return l |
228 | |
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229 def getargsdict(x, funcname, keys): |
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230 return parser.buildargsdict(getlist(x), funcname, parser.splitargspec(keys), |
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231 keyvaluenode='keyvalue', keynode='symbol') |
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232 |
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233 # Constants for ordering requirement, used in _analyze(): |
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234 # |
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235 # If 'define', any nested functions and operations can change the ordering of |
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236 # the entries in the set. If 'follow', any nested functions and operations |
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237 # should take the ordering specified by the first operand to the '&' operator. |
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238 # |
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239 # For instance, |
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240 # |
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241 # X & (Y | Z) |
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242 # ^ ^^^^^^^ |
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243 # | follow |
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244 # define |
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245 # |
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246 # will be evaluated as 'or(y(x()), z(x()))', where 'x()' can change the order |
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247 # of the entries in the set, but 'y()', 'z()' and 'or()' shouldn't. |
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248 # |
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249 # 'any' means the order doesn't matter. For instance, |
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250 # |
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251 # X & !Y |
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252 # ^ |
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253 # any |
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254 # |
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255 # 'y()' can either enforce its ordering requirement or take the ordering |
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256 # specified by 'x()' because 'not()' doesn't care the order. |
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257 # |
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258 # Transition of ordering requirement: |
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259 # |
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260 # 1. starts with 'define' |
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261 # 2. shifts to 'follow' by 'x & y' |
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262 # 3. changes back to 'define' on function call 'f(x)' or function-like |
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263 # operation 'x (f) y' because 'f' may have its own ordering requirement |
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264 # for 'x' and 'y' (e.g. 'first(x)') |
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265 # |
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266 anyorder = 'any' # don't care the order |
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267 defineorder = 'define' # should define the order |
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268 followorder = 'follow' # must follow the current order |
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269 |
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270 # transition table for 'x & y', from the current expression 'x' to 'y' |
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271 _tofolloworder = { |
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272 anyorder: anyorder, |
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273 defineorder: followorder, |
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274 followorder: followorder, |
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275 } |
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276 |
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277 def _matchonly(revs, bases): |
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278 """ |
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279 >>> f = lambda *args: _matchonly(*map(parse, args)) |
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280 >>> f('ancestors(A)', 'not ancestors(B)') |
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281 ('list', ('symbol', 'A'), ('symbol', 'B')) |
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282 """ |
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283 if (revs is not None |
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284 and revs[0] == 'func' |
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285 and getsymbol(revs[1]) == 'ancestors' |
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286 and bases is not None |
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287 and bases[0] == 'not' |
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288 and bases[1][0] == 'func' |
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289 and getsymbol(bases[1][1]) == 'ancestors'): |
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290 return ('list', revs[2], bases[1][2]) |
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291 |
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292 def _fixops(x): |
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293 """Rewrite raw parsed tree to resolve ambiguous syntax which cannot be |
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294 handled well by our simple top-down parser""" |
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295 if not isinstance(x, tuple): |
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296 return x |
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297 |
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298 op = x[0] |
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299 if op == 'parent': |
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300 # x^:y means (x^) : y, not x ^ (:y) |
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301 # x^: means (x^) :, not x ^ (:) |
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302 post = ('parentpost', x[1]) |
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303 if x[2][0] == 'dagrangepre': |
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304 return _fixops(('dagrange', post, x[2][1])) |
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305 elif x[2][0] == 'rangepre': |
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306 return _fixops(('range', post, x[2][1])) |
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307 elif x[2][0] == 'rangeall': |
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308 return _fixops(('rangepost', post)) |
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309 elif op == 'or': |
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310 # make number of arguments deterministic: |
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311 # x + y + z -> (or x y z) -> (or (list x y z)) |
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312 return (op, _fixops(('list',) + x[1:])) |
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313 |
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314 return (op,) + tuple(_fixops(y) for y in x[1:]) |
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315 |
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316 def _analyze(x, order): |
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317 if x is None: |
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318 return x |
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319 |
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320 op = x[0] |
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321 if op == 'minus': |
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322 return _analyze(('and', x[1], ('not', x[2])), order) |
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323 elif op == 'only': |
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324 t = ('func', ('symbol', 'only'), ('list', x[1], x[2])) |
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325 return _analyze(t, order) |
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326 elif op == 'onlypost': |
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327 return _analyze(('func', ('symbol', 'only'), x[1]), order) |
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328 elif op == 'dagrangepre': |
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329 return _analyze(('func', ('symbol', 'ancestors'), x[1]), order) |
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330 elif op == 'dagrangepost': |
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331 return _analyze(('func', ('symbol', 'descendants'), x[1]), order) |
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332 elif op == 'negate': |
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333 s = getstring(x[1], _("can't negate that")) |
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334 return _analyze(('string', '-' + s), order) |
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335 elif op in ('string', 'symbol'): |
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336 return x |
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337 elif op == 'and': |
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338 ta = _analyze(x[1], order) |
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339 tb = _analyze(x[2], _tofolloworder[order]) |
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340 return (op, ta, tb, order) |
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341 elif op == 'or': |
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342 return (op, _analyze(x[1], order), order) |
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343 elif op == 'not': |
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344 return (op, _analyze(x[1], anyorder), order) |
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345 elif op == 'rangeall': |
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346 return (op, None, order) |
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347 elif op in ('rangepre', 'rangepost', 'parentpost'): |
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348 return (op, _analyze(x[1], defineorder), order) |
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349 elif op == 'group': |
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350 return _analyze(x[1], order) |
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351 elif op in ('dagrange', 'range', 'parent', 'ancestor'): |
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352 ta = _analyze(x[1], defineorder) |
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353 tb = _analyze(x[2], defineorder) |
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354 return (op, ta, tb, order) |
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355 elif op == 'list': |
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356 return (op,) + tuple(_analyze(y, order) for y in x[1:]) |
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357 elif op == 'keyvalue': |
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358 return (op, x[1], _analyze(x[2], order)) |
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359 elif op == 'func': |
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360 f = getsymbol(x[1]) |
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361 d = defineorder |
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362 if f == 'present': |
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363 # 'present(set)' is known to return the argument set with no |
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364 # modification, so forward the current order to its argument |
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365 d = order |
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366 return (op, x[1], _analyze(x[2], d), order) |
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367 raise ValueError('invalid operator %r' % op) |
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368 |
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369 def analyze(x, order=defineorder): |
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370 """Transform raw parsed tree to evaluatable tree which can be fed to |
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371 optimize() or getset() |
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372 |
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|
373 All pseudo operations should be mapped to real operations or functions |
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374 defined in methods or symbols table respectively. |
29930
90455e7bf543
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|
375 |
90455e7bf543
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diff
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|
376 'order' specifies how the current expression 'x' is ordered (see the |
90455e7bf543
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diff
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|
377 constants defined above.) |
29905
371c2a39eead
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29904
diff
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|
378 """ |
29930
90455e7bf543
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diff
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|
379 return _analyze(x, order) |
29905
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|
380 |
29119
a032ebea4e97
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Yuya Nishihara <yuya@tcha.org>
parents:
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diff
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|
381 def _optimize(x, small): |
13031
3da456d0c885
code style: prefer 'is' and 'is not' tests with singletons
Martin Geisler <mg@aragost.com>
parents:
12936
diff
changeset
|
382 if x is None: |
11279
62ccf4cd6e7f
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Matt Mackall <mpm@selenic.com>
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diff
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|
383 return 0, x |
62ccf4cd6e7f
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parents:
11278
diff
changeset
|
384 |
11275 | 385 smallbonus = 1 |
386 if small: | |
387 smallbonus = .5 | |
388 | |
389 op = x[0] | |
29904
e4b4168a4f1c
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Yuya Nishihara <yuya@tcha.org>
parents:
29898
diff
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|
390 if op in ('string', 'symbol'): |
11279
62ccf4cd6e7f
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
391 return smallbonus, x # single revisions are small |
16859
eeb464ed7275
revset: drop unreachable code
Bryan O'Sullivan <bryano@fb.com>
parents:
16838
diff
changeset
|
392 elif op == 'and': |
29119
a032ebea4e97
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Yuya Nishihara <yuya@tcha.org>
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diff
changeset
|
393 wa, ta = _optimize(x[1], True) |
a032ebea4e97
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29118
diff
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|
394 wb, tb = _optimize(x[2], True) |
29932
09a84e747c88
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Yuya Nishihara <yuya@tcha.org>
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|
395 order = x[3] |
29116
0c9b05dae010
revset: unnest isonly() closure from optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29098
diff
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|
396 w = min(wa, wb) |
20499
2efd608473fb
revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents:
20498
diff
changeset
|
397 |
2efd608473fb
revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents:
20498
diff
changeset
|
398 # (::x and not ::y)/(not ::y and ::x) have a fast path |
29117
7828cadd2873
revset: construct arguments of only() against matched tree
Yuya Nishihara <yuya@tcha.org>
parents:
29116
diff
changeset
|
399 tm = _matchonly(ta, tb) or _matchonly(tb, ta) |
7828cadd2873
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Yuya Nishihara <yuya@tcha.org>
parents:
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diff
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|
400 if tm: |
29932
09a84e747c88
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parents:
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diff
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|
401 return w, ('func', ('symbol', 'only'), tm, order) |
20499
2efd608473fb
revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents:
20498
diff
changeset
|
402 |
28217
d2ac8b57a75d
revset: use smartset minus operator
Durham Goode <durham@fb.com>
parents:
28139
diff
changeset
|
403 if tb is not None and tb[0] == 'not': |
29932
09a84e747c88
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Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
404 return wa, ('difference', ta, tb[1], order) |
28217
d2ac8b57a75d
revset: use smartset minus operator
Durham Goode <durham@fb.com>
parents:
28139
diff
changeset
|
405 |
11279
62ccf4cd6e7f
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
406 if wa > wb: |
29932
09a84e747c88
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diff
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|
407 return w, (op, tb, ta, order) |
09a84e747c88
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parents:
29931
diff
changeset
|
408 return w, (op, ta, tb, order) |
11279
62ccf4cd6e7f
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Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
409 elif op == 'or': |
25343
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
410 # fast path for machine-generated expression, that is likely to have |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
411 # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()' |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
412 order = x[2] |
25343
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
413 ws, ts, ss = [], [], [] |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
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diff
changeset
|
414 def flushss(): |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
415 if not ss: |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
416 return |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
417 if len(ss) == 1: |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
418 w, t = ss[0] |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
419 else: |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
420 s = '\0'.join(t[1] for w, t in ss) |
29932
09a84e747c88
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parents:
29931
diff
changeset
|
421 y = ('func', ('symbol', '_list'), ('string', s), order) |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
422 w, t = _optimize(y, False) |
25343
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
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diff
changeset
|
423 ws.append(w) |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
424 ts.append(t) |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
425 del ss[:] |
29929
b3845cab4ddc
revset: wrap arguments of 'or' by 'list' node
Yuya Nishihara <yuya@tcha.org>
parents:
29922
diff
changeset
|
426 for y in getlist(x[1]): |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
427 w, t = _optimize(y, False) |
25996
b12e00a05d57
revset: prevent crash caused by empty group expression while optimizing "or"
Yuya Nishihara <yuya@tcha.org>
parents:
25995
diff
changeset
|
428 if t is not None and (t[0] == 'string' or t[0] == 'symbol'): |
25343
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
429 ss.append((w, t)) |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
430 continue |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
431 flushss() |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
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parents:
25342
diff
changeset
|
432 ws.append(w) |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
433 ts.append(t) |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
434 flushss() |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
435 if len(ts) == 1: |
7fbef7932af9
revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents:
25342
diff
changeset
|
436 return ws[0], ts[0] # 'or' operation is fully optimized out |
25307
4d1e56b29a91
revset: comment that we can't swap 'or' operands by weight
Yuya Nishihara <yuya@tcha.org>
parents:
25270
diff
changeset
|
437 # we can't reorder trees by weight because it would change the order. |
4d1e56b29a91
revset: comment that we can't swap 'or' operands by weight
Yuya Nishihara <yuya@tcha.org>
parents:
25270
diff
changeset
|
438 # ("sort(a + b)" == "sort(b + a)", but "a + b" != "b + a") |
25309
b333ca94403d
revset: reduce nesting of chained 'or' operations (issue4624)
Yuya Nishihara <yuya@tcha.org>
parents:
25308
diff
changeset
|
439 # ts = tuple(t for w, t in sorted(zip(ws, ts), key=lambda wt: wt[0])) |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
440 return max(ws), (op, ('list',) + tuple(ts), order) |
11275 | 441 elif op == 'not': |
25191
08d1ef09ed37
revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents:
25149
diff
changeset
|
442 # Optimize not public() to _notpublic() because we have a fast version |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
443 if x[1][:3] == ('func', ('symbol', 'public'), None): |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
444 order = x[1][3] |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
445 newsym = ('func', ('symbol', '_notpublic'), None, order) |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
446 o = _optimize(newsym, not small) |
25191
08d1ef09ed37
revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents:
25149
diff
changeset
|
447 return o[0], o[1] |
08d1ef09ed37
revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents:
25149
diff
changeset
|
448 else: |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
449 o = _optimize(x[1], not small) |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
450 order = x[2] |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
451 return o[0], (op, o[1], order) |
30803
d389f19f14aa
revset: do not transform range* operators in parsed tree
Yuya Nishihara <yuya@tcha.org>
parents:
30802
diff
changeset
|
452 elif op == 'rangeall': |
d389f19f14aa
revset: do not transform range* operators in parsed tree
Yuya Nishihara <yuya@tcha.org>
parents:
30802
diff
changeset
|
453 return smallbonus, x |
d389f19f14aa
revset: do not transform range* operators in parsed tree
Yuya Nishihara <yuya@tcha.org>
parents:
30802
diff
changeset
|
454 elif op in ('rangepre', 'rangepost', 'parentpost'): |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
455 o = _optimize(x[1], small) |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
456 order = x[2] |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
457 return o[0], (op, o[1], order) |
29898
7203400f91b0
revset: do not partial-match operator and function names in optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29897
diff
changeset
|
458 elif op in ('dagrange', 'range', 'parent', 'ancestor'): |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
459 wa, ta = _optimize(x[1], small) |
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
460 wb, tb = _optimize(x[2], small) |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
461 order = x[3] |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
462 return wa + wb, (op, ta, tb, order) |
27987
b19d8d5d6b51
revset: flatten chained 'list' operations (aka function args) (issue5072)
Yuya Nishihara <yuya@tcha.org>
parents:
27945
diff
changeset
|
463 elif op == 'list': |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
464 ws, ts = zip(*(_optimize(y, small) for y in x[1:])) |
27987
b19d8d5d6b51
revset: flatten chained 'list' operations (aka function args) (issue5072)
Yuya Nishihara <yuya@tcha.org>
parents:
27945
diff
changeset
|
465 return sum(ws), (op,) + ts |
29766
5004ef47f437
revset: fix keyword arguments to go through optimization process
Yuya Nishihara <yuya@tcha.org>
parents:
29646
diff
changeset
|
466 elif op == 'keyvalue': |
5004ef47f437
revset: fix keyword arguments to go through optimization process
Yuya Nishihara <yuya@tcha.org>
parents:
29646
diff
changeset
|
467 w, t = _optimize(x[2], small) |
5004ef47f437
revset: fix keyword arguments to go through optimization process
Yuya Nishihara <yuya@tcha.org>
parents:
29646
diff
changeset
|
468 return w, (op, x[1], t) |
11275 | 469 elif op == 'func': |
29441
9e8d258708bb
revset: check invalid function syntax "func-name"() explicitly
Yuya Nishihara <yuya@tcha.org>
parents:
29425
diff
changeset
|
470 f = getsymbol(x[1]) |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
471 wa, ta = _optimize(x[2], small) |
29898
7203400f91b0
revset: do not partial-match operator and function names in optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29897
diff
changeset
|
472 if f in ('author', 'branch', 'closed', 'date', 'desc', 'file', 'grep', |
30205
b4074417b661
revset: optimize for destination() being "inefficient"
Mads Kiilerich <madski@unity3d.com>
parents:
30179
diff
changeset
|
473 'keyword', 'outgoing', 'user', 'destination'): |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
474 w = 10 # slow |
29898
7203400f91b0
revset: do not partial-match operator and function names in optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29897
diff
changeset
|
475 elif f in ('modifies', 'adds', 'removes'): |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
476 w = 30 # slower |
11275 | 477 elif f == "contains": |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
478 w = 100 # very slow |
11275 | 479 elif f == "ancestor": |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
480 w = 1 * smallbonus |
30700
323f0c4b43f4
revset: categorize wdir() as very fast function
Yuya Nishihara <yuya@tcha.org>
parents:
30699
diff
changeset
|
481 elif f in ('reverse', 'limit', 'first', 'wdir', '_intlist'): |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
482 w = 0 |
29898
7203400f91b0
revset: do not partial-match operator and function names in optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29897
diff
changeset
|
483 elif f == "sort": |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
484 w = 10 # assume most sorts look at changelog |
11275 | 485 else: |
11279
62ccf4cd6e7f
revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents:
11278
diff
changeset
|
486 w = 1 |
29932
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
487 order = x[3] |
09a84e747c88
revset: pass around ordering flags to operations
Yuya Nishihara <yuya@tcha.org>
parents:
29931
diff
changeset
|
488 return w + wa, (op, x[1], ta, order) |
29896
104914b03b83
revset: make optimize() reject unknown operators
Yuya Nishihara <yuya@tcha.org>
parents:
29814
diff
changeset
|
489 raise ValueError('invalid operator %r' % op) |
11275 | 490 |
29119
a032ebea4e97
revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents:
29118
diff
changeset
|
491 def optimize(tree): |
29905
371c2a39eead
revset: make analyze() a separate step from optimize()
Yuya Nishihara <yuya@tcha.org>
parents:
29904
diff
changeset
|
492 """Optimize evaluatable tree |
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493 |
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494 All pseudo operations should be transformed beforehand. |
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495 """ |
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496 _weight, newtree = _optimize(tree, small=True) |
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497 return newtree |
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498 |
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499 # the set of valid characters for the initial letter of symbols in |
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500 # alias declarations and definitions |
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501 _aliassyminitletters = _syminitletters | set(pycompat.sysstr('$')) |
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502 |
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503 def _parsewith(spec, lookup=None, syminitletters=None): |
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504 """Generate a parse tree of given spec with given tokenizing options |
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505 |
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506 >>> _parsewith('foo($1)', syminitletters=_aliassyminitletters) |
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507 ('func', ('symbol', 'foo'), ('symbol', '$1')) |
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508 >>> _parsewith('$1') |
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509 Traceback (most recent call last): |
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510 ... |
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511 ParseError: ("syntax error in revset '$1'", 0) |
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512 >>> _parsewith('foo bar') |
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513 Traceback (most recent call last): |
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514 ... |
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515 ParseError: ('invalid token', 4) |
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516 """ |
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517 p = parser.parser(elements) |
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518 tree, pos = p.parse(tokenize(spec, lookup=lookup, |
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519 syminitletters=syminitletters)) |
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520 if pos != len(spec): |
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521 raise error.ParseError(_('invalid token'), pos) |
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522 return _fixops(parser.simplifyinfixops(tree, ('list', 'or'))) |
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523 |
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524 class _aliasrules(parser.basealiasrules): |
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525 """Parsing and expansion rule set of revset aliases""" |
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526 _section = _('revset alias') |
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527 |
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528 @staticmethod |
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529 def _parse(spec): |
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530 """Parse alias declaration/definition ``spec`` |
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531 |
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532 This allows symbol names to use also ``$`` as an initial letter |
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533 (for backward compatibility), and callers of this function should |
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534 examine whether ``$`` is used also for unexpected symbols or not. |
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535 """ |
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536 return _parsewith(spec, syminitletters=_aliassyminitletters) |
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537 |
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538 @staticmethod |
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539 def _trygetfunc(tree): |
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540 if tree[0] == 'func' and tree[1][0] == 'symbol': |
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541 return tree[1][1], getlist(tree[2]) |
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542 |
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543 def expandaliases(ui, tree): |
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544 aliases = _aliasrules.buildmap(ui.configitems('revsetalias')) |
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545 tree = _aliasrules.expand(aliases, tree) |
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546 # warn about problematic (but not referred) aliases |
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547 for name, alias in sorted(aliases.iteritems()): |
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548 if alias.error and not alias.warned: |
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549 ui.warn(_('warning: %s\n') % (alias.error)) |
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550 alias.warned = True |
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551 return tree |
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552 |
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553 def foldconcat(tree): |
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554 """Fold elements to be concatenated by `##` |
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555 """ |
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556 if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): |
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557 return tree |
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558 if tree[0] == '_concat': |
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559 pending = [tree] |
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560 l = [] |
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561 while pending: |
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562 e = pending.pop() |
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563 if e[0] == '_concat': |
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564 pending.extend(reversed(e[1:])) |
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565 elif e[0] in ('string', 'symbol'): |
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566 l.append(e[1]) |
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567 else: |
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568 msg = _("\"##\" can't concatenate \"%s\" element") % (e[0]) |
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569 raise error.ParseError(msg) |
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570 return ('string', ''.join(l)) |
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571 else: |
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572 return tuple(foldconcat(t) for t in tree) |
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573 |
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574 def parse(spec, lookup=None): |
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575 return _parsewith(spec, lookup=lookup) |
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576 |
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577 def _quote(s): |
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578 r"""Quote a value in order to make it safe for the revset engine. |
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579 |
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580 >>> _quote('asdf') |
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581 "'asdf'" |
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582 >>> _quote("asdf'\"") |
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|
583 '\'asdf\\\'"\'' |
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|
584 >>> _quote('asdf\'') |
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|
585 "'asdf\\''" |
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586 >>> _quote(1) |
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|
587 "'1'" |
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|
588 """ |
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|
589 return "'%s'" % util.escapestr(pycompat.bytestr(s)) |
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|
590 |
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|
591 def formatspec(expr, *args): |
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592 ''' |
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593 This is a convenience function for using revsets internally, and |
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594 escapes arguments appropriately. Aliases are intentionally ignored |
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|
595 so that intended expression behavior isn't accidentally subverted. |
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596 |
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|
597 Supported arguments: |
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|
598 |
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|
599 %r = revset expression, parenthesized |
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|
600 %d = int(arg), no quoting |
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|
601 %s = string(arg), escaped and single-quoted |
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diff
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|
602 %b = arg.branch(), escaped and single-quoted |
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|
603 %n = hex(arg), single-quoted |
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604 %% = a literal '%' |
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605 |
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606 Prefixing the type with 'l' specifies a parenthesized list of that type. |
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607 |
15268
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diff
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608 >>> formatspec('%r:: and %lr', '10 or 11', ("this()", "that()")) |
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609 '(10 or 11):: and ((this()) or (that()))' |
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610 >>> formatspec('%d:: and not %d::', 10, 20) |
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611 '10:: and not 20::' |
15325
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612 >>> formatspec('%ld or %ld', [], [1]) |
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613 "_list('') or 1" |
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614 >>> formatspec('keyword(%s)', 'foo\\xe9') |
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615 "keyword('foo\\\\xe9')" |
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616 >>> b = lambda: 'default' |
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617 >>> b.branch = b |
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618 >>> formatspec('branch(%b)', b) |
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619 "branch('default')" |
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620 >>> formatspec('root(%ls)', ['a', 'b', 'c', 'd']) |
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621 "root(_list('a\\x00b\\x00c\\x00d'))" |
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622 ''' |
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623 |
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624 def argtype(c, arg): |
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|
625 if c == 'd': |
31603
fbe8502c4480
revsetlang: portably bytestring-ify another pair of int() calls
Augie Fackler <augie@google.com>
parents:
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|
626 return '%d' % int(arg) |
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627 elif c == 's': |
31604
7eac6fcf2ffa
revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents:
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diff
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|
628 return _quote(arg) |
15266
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629 elif c == 'r': |
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630 parse(arg) # make sure syntax errors are confined |
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631 return '(%s)' % arg |
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632 elif c == 'n': |
31604
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Augie Fackler <augie@google.com>
parents:
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633 return _quote(node.hex(arg)) |
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634 elif c == 'b': |
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635 return _quote(arg.branch()) |
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636 |
15595
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637 def listexp(s, t): |
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638 l = len(s) |
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639 if l == 0: |
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640 return "_list('')" |
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641 elif l == 1: |
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642 return argtype(t, s[0]) |
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643 elif t == 'd': |
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644 return "_intlist('%s')" % "\0".join('%d' % int(a) for a in s) |
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645 elif t == 's': |
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646 return "_list('%s')" % "\0".join(s) |
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647 elif t == 'n': |
20569
0d4be103c734
revset: added _hexlist method to replace _list for %ln
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
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648 return "_hexlist('%s')" % "\0".join(node.hex(a) for a in s) |
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649 elif t == 'b': |
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650 return "_list('%s')" % "\0".join(a.branch() for a in s) |
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651 |
15791
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Use explicit integer division
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652 m = l // 2 |
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653 return '(%s or %s)' % (listexp(s[:m], t), listexp(s[m:], t)) |
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|
654 |
31440
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655 expr = pycompat.bytestr(expr) |
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656 ret = '' |
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657 pos = 0 |
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658 arg = 0 |
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659 while pos < len(expr): |
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660 c = expr[pos] |
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661 if c == '%': |
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662 pos += 1 |
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663 d = expr[pos] |
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664 if d == '%': |
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665 ret += d |
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666 elif d in 'dsnbr': |
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667 ret += argtype(d, args[arg]) |
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668 arg += 1 |
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669 elif d == 'l': |
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670 # a list of some type |
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671 pos += 1 |
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672 d = expr[pos] |
15596 | 673 ret += listexp(list(args[arg]), d) |
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674 arg += 1 |
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|
675 else: |
29389
98e8313dcd9e
i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
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changeset
|
676 raise error.Abort(_('unexpected revspec format character %s') |
98e8313dcd9e
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|
677 % d) |
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678 else: |
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679 ret += c |
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680 pos += 1 |
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|
681 |
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682 return ret |
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|
683 |
16218
81a1a00f5738
debugrevspec: pretty print output
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changeset
|
684 def prettyformat(tree): |
25253
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Yuya Nishihara <yuya@tcha.org>
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25251
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changeset
|
685 return parser.prettyformat(tree, ('string', 'symbol')) |
16218
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Patrick Mezard <patrick@mezard.eu>
parents:
16185
diff
changeset
|
686 |
19719
2f9d5c5256ea
revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents:
19706
diff
changeset
|
687 def depth(tree): |
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Alexander Plavin <alexander@plav.in>
parents:
19706
diff
changeset
|
688 if isinstance(tree, tuple): |
2f9d5c5256ea
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Alexander Plavin <alexander@plav.in>
parents:
19706
diff
changeset
|
689 return max(map(depth, tree)) + 1 |
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parents:
19706
diff
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|
690 else: |
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Alexander Plavin <alexander@plav.in>
parents:
19706
diff
changeset
|
691 return 0 |
2f9d5c5256ea
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Alexander Plavin <alexander@plav.in>
parents:
19706
diff
changeset
|
692 |
19720
f0b992a9be9c
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Alexander Plavin <alexander@plav.in>
parents:
19719
diff
changeset
|
693 def funcsused(tree): |
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Alexander Plavin <alexander@plav.in>
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diff
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|
694 if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'): |
f0b992a9be9c
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|
695 return set() |
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parents:
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diff
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|
696 else: |
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|
697 funcs = set() |
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diff
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|
698 for s in tree[1:]: |
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19719
diff
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|
699 funcs |= funcsused(s) |
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|
700 if tree[0] == 'func': |
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Alexander Plavin <alexander@plav.in>
parents:
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|
701 funcs.add(tree[1][1]) |
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changeset
|
702 return funcs |