mercurial/revsetlang.py
author Boris Feld <boris.feld@octobus.net>
Fri, 30 Jun 2017 03:43:46 +0200
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# revsetlang.py - parser, tokenizer and utility for revision set language
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#
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# Copyright 2010 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import string
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from .i18n import _
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from . import (
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    error,
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    node,
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    parser,
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    pycompat,
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    util,
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)
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elements = {
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    # token-type: binding-strength, primary, prefix, infix, suffix
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    "(": (21, None, ("group", 1, ")"), ("func", 1, ")"), None),
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    "[": (21, None, None, ("subscript", 1, "]"), None),
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    "#": (21, None, None, ("relation", 21), None),
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    "##": (20, None, None, ("_concat", 20), None),
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    "~": (18, None, None, ("ancestor", 18), None),
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    "^": (18, None, None, ("parent", 18), "parentpost"),
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    "-": (5, None, ("negate", 19), ("minus", 5), None),
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    "::": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"),
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    "..": (17, None, ("dagrangepre", 17), ("dagrange", 17), "dagrangepost"),
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    ":": (15, "rangeall", ("rangepre", 15), ("range", 15), "rangepost"),
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    "not": (10, None, ("not", 10), None, None),
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    "!": (10, None, ("not", 10), None, None),
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    "and": (5, None, None, ("and", 5), None),
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    "&": (5, None, None, ("and", 5), None),
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    "%": (5, None, None, ("only", 5), "onlypost"),
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    "or": (4, None, None, ("or", 4), None),
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    "|": (4, None, None, ("or", 4), None),
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    "+": (4, None, None, ("or", 4), None),
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    "=": (3, None, None, ("keyvalue", 3), None),
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    ",": (2, None, None, ("list", 2), None),
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    ")": (0, None, None, None, None),
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    "]": (0, None, None, None, None),
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    "symbol": (0, "symbol", None, None, None),
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    "string": (0, "string", None, None, None),
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    "end": (0, None, None, None, None),
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}
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keywords = {'and', 'or', 'not'}
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symbols = {}
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_quoteletters = {'"', "'"}
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_simpleopletters = set(pycompat.iterbytestr("()[]#:=,-|&+!~^%"))
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# default set of valid characters for the initial letter of symbols
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_syminitletters = set(pycompat.iterbytestr(
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    string.ascii_letters.encode('ascii') +
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    string.digits.encode('ascii') +
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    '._@')) | set(map(pycompat.bytechr, xrange(128, 256)))
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# default set of valid characters for non-initial letters of symbols
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_symletters = _syminitletters | set(pycompat.iterbytestr('-/'))
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def tokenize(program, lookup=None, syminitletters=None, symletters=None):
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    '''
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    Parse a revset statement into a stream of tokens
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    ``syminitletters`` is the set of valid characters for the initial
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    letter of symbols.
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    By default, character ``c`` is recognized as valid for initial
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    letter of symbols, if ``c.isalnum() or c in '._@' or ord(c) > 127``.
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    ``symletters`` is the set of valid characters for non-initial
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    letters of symbols.
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    By default, character ``c`` is recognized as valid for non-initial
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    letters of symbols, if ``c.isalnum() or c in '-._/@' or ord(c) > 127``.
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    Check that @ is a valid unquoted token character (issue3686):
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    >>> list(tokenize(b"@::"))
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    [('symbol', '@', 0), ('::', None, 1), ('end', None, 3)]
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    '''
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    program = pycompat.bytestr(program)
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    if syminitletters is None:
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        syminitletters = _syminitletters
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    if symletters is None:
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        symletters = _symletters
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    if program and lookup:
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        # attempt to parse old-style ranges first to deal with
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        # things like old-tag which contain query metacharacters
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        parts = program.split(':', 1)
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        if all(lookup(sym) for sym in parts if sym):
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            if parts[0]:
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                yield ('symbol', parts[0], 0)
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            if len(parts) > 1:
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                s = len(parts[0])
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                yield (':', None, s)
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                if parts[1]:
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                    yield ('symbol', parts[1], s + 1)
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            yield ('end', None, len(program))
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            return
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    pos, l = 0, len(program)
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    while pos < l:
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        c = program[pos]
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        if c.isspace(): # skip inter-token whitespace
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            pass
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        elif c == ':' and program[pos:pos + 2] == '::': # look ahead carefully
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            yield ('::', None, pos)
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            pos += 1 # skip ahead
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        elif c == '.' and program[pos:pos + 2] == '..': # look ahead carefully
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            yield ('..', None, pos)
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            pos += 1 # skip ahead
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        elif c == '#' and program[pos:pos + 2] == '##': # look ahead carefully
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parents: 23729
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   120
            yield ('##', None, pos)
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parents: 23729
diff changeset
   121
            pos += 1 # skip ahead
31384
fac5cd3b8673 py3: make set of revset operators and quotes in bytes
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parents: 31383
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   122
        elif c in _simpleopletters: # handle simple operators
11289
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parents: 11284
diff changeset
   123
            yield (c, None, pos)
31384
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parents: 31383
diff changeset
   124
        elif (c in _quoteletters or c == 'r' and
12408
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parents: 12401
diff changeset
   125
              program[pos:pos + 2] in ("r'", 'r"')): # handle quoted strings
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parents: 12401
diff changeset
   126
            if c == 'r':
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   127
                pos += 1
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parents: 31440
diff changeset
   128
                c = program[pos]
12408
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parents: 12401
diff changeset
   129
                decode = lambda x: x
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parents: 12401
diff changeset
   130
            else:
26232
43f9976346e9 revset: handle error of string unescaping
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parents: 26212
diff changeset
   131
                decode = parser.unescapestr
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            pos += 1
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parents:
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   133
            s = pos
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parents:
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   134
            while pos < l: # find closing quote
31441
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parents: 31440
diff changeset
   135
                d = program[pos]
11275
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parents:
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   136
                if d == '\\': # skip over escaped characters
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parents:
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   137
                    pos += 2
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parents:
diff changeset
   138
                    continue
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parents:
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   139
                if d == c:
12408
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parents: 12401
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   140
                    yield ('string', decode(program[s:pos]), s)
11275
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parents:
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   141
                    break
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parents:
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   142
                pos += 1
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parents:
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   143
            else:
11383
de544774ebea revset: all your error messages are belong to _
Martin Geisler <mg@lazybytes.net>
parents: 11349
diff changeset
   144
                raise error.ParseError(_("unterminated string"), s)
16683
525fdb738975 cleanup: eradicate long lines
Brodie Rao <brodie@sf.io>
parents: 16661
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   145
        # gather up a symbol/keyword
23842
91dbb98b3513 revset: make tokenize extensible to parse alias declarations and definitions
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23836
diff changeset
   146
        elif c in syminitletters:
11275
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parents:
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   147
            s = pos
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parents:
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   148
            pos += 1
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parents:
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   149
            while pos < l: # find end of symbol
31441
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parents: 31440
diff changeset
   150
                d = program[pos]
23842
91dbb98b3513 revset: make tokenize extensible to parse alias declarations and definitions
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23836
diff changeset
   151
                if d not in symletters:
11275
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parents:
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   152
                    break
31441
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parents: 31440
diff changeset
   153
                if d == '.' and program[pos - 1] == '.': # special case for ..
11275
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parents:
diff changeset
   154
                    pos -= 1
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parents:
diff changeset
   155
                    break
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   156
                pos += 1
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   157
            sym = program[s:pos]
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parents:
diff changeset
   158
            if sym in keywords: # operator keywords
11289
4215ce511134 revset: raise ParseError exceptions
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parents: 11284
diff changeset
   159
                yield (sym, None, s)
20780
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
Matt Mackall <mpm@selenic.com>
parents: 20779
diff changeset
   160
            elif '-' in sym:
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   161
                # some jerk gave us foo-bar-baz, try to check if it's a symbol
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   162
                if lookup and lookup(sym):
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parents: 20779
diff changeset
   163
                    # looks like a real symbol
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   164
                    yield ('symbol', sym, s)
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   165
                else:
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
Matt Mackall <mpm@selenic.com>
parents: 20779
diff changeset
   166
                    # looks like an expression
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   167
                    parts = sym.split('-')
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   168
                    for p in parts[:-1]:
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   169
                        if p: # possible consecutive -
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   170
                            yield ('symbol', p, s)
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parents: 20779
diff changeset
   171
                        s += len(p)
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   172
                        yield ('-', None, pos)
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parents: 20779
diff changeset
   173
                        s += 1
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parents: 20779
diff changeset
   174
                    if parts[-1]: # possible trailing -
403f1f73d30f revset: try to handle hyphenated symbols if lookup callback is available
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parents: 20779
diff changeset
   175
                        yield ('symbol', parts[-1], s)
11275
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parents:
diff changeset
   176
            else:
11289
4215ce511134 revset: raise ParseError exceptions
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parents: 11284
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   177
                yield ('symbol', sym, s)
11275
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parents:
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   178
            pos -= 1
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   179
        else:
24708
fb47816e1a9c revsets: more informative syntax error message
Ryan McElroy <rmcelroy@fb.com>
parents: 24518
diff changeset
   180
            raise error.ParseError(_("syntax error in revset '%s'") %
fb47816e1a9c revsets: more informative syntax error message
Ryan McElroy <rmcelroy@fb.com>
parents: 24518
diff changeset
   181
                                   program, pos)
11275
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parents:
diff changeset
   182
        pos += 1
11289
4215ce511134 revset: raise ParseError exceptions
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parents: 11284
diff changeset
   183
    yield ('end', None, pos)
11275
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parents:
diff changeset
   184
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parents:
diff changeset
   185
# helpers
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parents:
diff changeset
   186
30802
5eb3e4568c94 revset: add default value to getinteger() helper
Yuya Nishihara <yuya@tcha.org>
parents: 30801
diff changeset
   187
_notset = object()
5eb3e4568c94 revset: add default value to getinteger() helper
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parents: 30801
diff changeset
   188
29441
9e8d258708bb revset: check invalid function syntax "func-name"() explicitly
Yuya Nishihara <yuya@tcha.org>
parents: 29425
diff changeset
   189
def getsymbol(x):
9e8d258708bb revset: check invalid function syntax "func-name"() explicitly
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parents: 29425
diff changeset
   190
    if x and x[0] == 'symbol':
9e8d258708bb revset: check invalid function syntax "func-name"() explicitly
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parents: 29425
diff changeset
   191
        return x[1]
9e8d258708bb revset: check invalid function syntax "func-name"() explicitly
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parents: 29425
diff changeset
   192
    raise error.ParseError(_('not a symbol'))
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parents: 29425
diff changeset
   193
11275
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parents:
diff changeset
   194
def getstring(x, err):
11406
42408cd43f55 revset: fix up contains/getstring when no args passed
Matt Mackall <mpm@selenic.com>
parents: 11404
diff changeset
   195
    if x and (x[0] == 'string' or x[0] == 'symbol'):
11275
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parents:
diff changeset
   196
        return x[1]
11289
4215ce511134 revset: raise ParseError exceptions
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parents: 11284
diff changeset
   197
    raise error.ParseError(err)
11275
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parents:
diff changeset
   198
30802
5eb3e4568c94 revset: add default value to getinteger() helper
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diff changeset
   199
def getinteger(x, err, default=_notset):
5eb3e4568c94 revset: add default value to getinteger() helper
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parents: 30801
diff changeset
   200
    if not x and default is not _notset:
5eb3e4568c94 revset: add default value to getinteger() helper
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parents: 30801
diff changeset
   201
        return default
30801
67ee7874e53b revset: factor out getinteger() helper
Yuya Nishihara <yuya@tcha.org>
parents: 30800
diff changeset
   202
    try:
67ee7874e53b revset: factor out getinteger() helper
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parents: 30800
diff changeset
   203
        return int(getstring(x, err))
67ee7874e53b revset: factor out getinteger() helper
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parents: 30800
diff changeset
   204
    except ValueError:
67ee7874e53b revset: factor out getinteger() helper
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parents: 30800
diff changeset
   205
        raise error.ParseError(err)
67ee7874e53b revset: factor out getinteger() helper
Yuya Nishihara <yuya@tcha.org>
parents: 30800
diff changeset
   206
31997
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   207
def getboolean(x, err):
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   208
    value = util.parsebool(getsymbol(x))
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   209
    if value is not None:
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   210
        return value
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   211
    raise error.ParseError(err)
11f501f0a213 revsetlang: add a getboolean helper function
Denis Laxalde <denis@laxalde.org>
parents: 31800
diff changeset
   212
11275
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parents:
diff changeset
   213
def getlist(x):
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parents:
diff changeset
   214
    if not x:
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parents:
diff changeset
   215
        return []
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   216
    if x[0] == 'list':
27987
b19d8d5d6b51 revset: flatten chained 'list' operations (aka function args) (issue5072)
Yuya Nishihara <yuya@tcha.org>
parents: 27945
diff changeset
   217
        return list(x[1:])
11275
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parents:
diff changeset
   218
    return [x]
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   219
30804
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   220
def getrange(x, err):
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
Yuya Nishihara <yuya@tcha.org>
parents: 30803
diff changeset
   221
    if not x:
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
Yuya Nishihara <yuya@tcha.org>
parents: 30803
diff changeset
   222
        raise error.ParseError(err)
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   223
    op = x[0]
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
Yuya Nishihara <yuya@tcha.org>
parents: 30803
diff changeset
   224
    if op == 'range':
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   225
        return x[1], x[2]
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
Yuya Nishihara <yuya@tcha.org>
parents: 30803
diff changeset
   226
    elif op == 'rangepre':
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   227
        return None, x[1]
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parents: 30803
diff changeset
   228
    elif op == 'rangepost':
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   229
        return x[1], None
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parents: 30803
diff changeset
   230
    elif op == 'rangeall':
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   231
        return None, None
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
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parents: 30803
diff changeset
   232
    raise error.ParseError(err)
4227f80f72b2 revset: abuse x:y syntax to specify line range of followlines()
Yuya Nishihara <yuya@tcha.org>
parents: 30803
diff changeset
   233
11339
744d5b73f776 revset: improve filter argument handling
Matt Mackall <mpm@selenic.com>
parents: 11304
diff changeset
   234
def getargs(x, min, max, err):
11275
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   235
    l = getlist(x)
16161
5a627b49b4d9 graphlog: paths/-I/-X handling requires a new revset
Patrick Mezard <patrick@mezard.eu>
parents: 16096
diff changeset
   236
    if len(l) < min or (max >= 0 and len(l) > max):
11289
4215ce511134 revset: raise ParseError exceptions
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parents: 11284
diff changeset
   237
        raise error.ParseError(err)
11275
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parents:
diff changeset
   238
    return l
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   239
25767
026105c442d7 revset: rename getkwargs() to getargsdict()
Yuya Nishihara <yuya@tcha.org>
parents: 25766
diff changeset
   240
def getargsdict(x, funcname, keys):
30753
c3a3896a9fa8 parser: extend buildargsdict() to support variable-length positional args
Yuya Nishihara <yuya@tcha.org>
parents: 30719
diff changeset
   241
    return parser.buildargsdict(getlist(x), funcname, parser.splitargspec(keys),
25705
48919d246a47 revset: add function to build dict of positional and keyword arguments
Yuya Nishihara <yuya@tcha.org>
parents: 25704
diff changeset
   242
                                keyvaluenode='keyvalue', keynode='symbol')
48919d246a47 revset: add function to build dict of positional and keyword arguments
Yuya Nishihara <yuya@tcha.org>
parents: 25704
diff changeset
   243
34044
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   244
# cache of {spec: raw parsed tree} built internally
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   245
_treecache = {}
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   246
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   247
def _cachedtree(spec):
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   248
    # thread safe because parse() is reentrant and dict.__setitem__() is atomic
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   249
    tree = _treecache.get(spec)
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   250
    if tree is None:
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        _treecache[spec] = tree = parse(spec)
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    return tree
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def _build(tmplspec, *repls):
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    """Create raw parsed tree from a template revset statement
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    >>> _build(b'f(_) and _', (b'string', b'1'), (b'symbol', b'2'))
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    ('and', ('func', ('symbol', 'f'), ('string', '1')), ('symbol', '2'))
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    """
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    template = _cachedtree(tmplspec)
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    return parser.buildtree(template, ('symbol', '_'), *repls)
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def _match(patspec, tree):
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    """Test if a tree matches the given pattern statement; return the matches
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    >>> _match(b'f(_)', parse(b'f()'))
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    >>> _match(b'f(_)', parse(b'f(1)'))
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    [('func', ('symbol', 'f'), ('symbol', '1')), ('symbol', '1')]
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    >>> _match(b'f(_)', parse(b'f(1, 2)'))
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    """
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    pattern = _cachedtree(patspec)
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    return parser.matchtree(pattern, tree, ('symbol', '_'),
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                            {'keyvalue', 'list'})
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def _matchonly(revs, bases):
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    return _match('ancestors(_) and not ancestors(_)', ('and', revs, bases))
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def _fixops(x):
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    """Rewrite raw parsed tree to resolve ambiguous syntax which cannot be
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    handled well by our simple top-down parser"""
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    if not isinstance(x, tuple):
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        return x
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    op = x[0]
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    if op == 'parent':
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        # x^:y means (x^) : y, not x ^ (:y)
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        # x^:  means (x^) :,   not x ^ (:)
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        post = ('parentpost', x[1])
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        if x[2][0] == 'dagrangepre':
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            return _fixops(('dagrange', post, x[2][1]))
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        elif x[2][0] == 'rangepre':
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            return _fixops(('range', post, x[2][1]))
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        elif x[2][0] == 'rangeall':
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   294
            return _fixops(('rangepost', post))
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    elif op == 'or':
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   296
        # make number of arguments deterministic:
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diff changeset
   297
        # x + y + z -> (or x y z) -> (or (list x y z))
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   298
        return (op, _fixops(('list',) + x[1:]))
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diff changeset
   299
    elif op == 'subscript' and x[1][0] == 'relation':
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        # x#y[z] ternary
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   301
        return _fixops(('relsubscript', x[1][1], x[1][2], x[2]))
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    return (op,) + tuple(_fixops(y) for y in x[1:])
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   304
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def _analyze(x):
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    if x is None:
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        return x
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    op = x[0]
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    if op == 'minus':
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   311
        return _analyze(_build('_ and not _', *x[1:]))
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   312
    elif op == 'only':
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        return _analyze(_build('only(_, _)', *x[1:]))
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    elif op == 'onlypost':
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        return _analyze(_build('only(_)', x[1]))
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    elif op == 'dagrangepre':
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        return _analyze(_build('ancestors(_)', x[1]))
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    elif op == 'dagrangepost':
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        return _analyze(_build('descendants(_)', x[1]))
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   320
    elif op == 'negate':
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   321
        s = getstring(x[1], _("can't negate that"))
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        return _analyze(('string', '-' + s))
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   323
    elif op in ('string', 'symbol'):
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   324
        return x
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   325
    elif op == 'rangeall':
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   326
        return (op, None)
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   327
    elif op in {'or', 'not', 'rangepre', 'rangepost', 'parentpost'}:
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   328
        return (op, _analyze(x[1]))
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   329
    elif op == 'group':
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   330
        return _analyze(x[1])
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   331
    elif op in {'and', 'dagrange', 'range', 'parent', 'ancestor', 'relation',
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   332
                'subscript'}:
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   333
        ta = _analyze(x[1])
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   334
        tb = _analyze(x[2])
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   335
        return (op, ta, tb)
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   336
    elif op == 'relsubscript':
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   337
        ta = _analyze(x[1])
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   338
        tb = _analyze(x[2])
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   339
        tc = _analyze(x[3])
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   340
        return (op, ta, tb, tc)
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   341
    elif op == 'list':
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diff changeset
   342
        return (op,) + tuple(_analyze(y) for y in x[1:])
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   343
    elif op == 'keyvalue':
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diff changeset
   344
        return (op, x[1], _analyze(x[2]))
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   345
    elif op == 'func':
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diff changeset
   346
        return (op, x[1], _analyze(x[2]))
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diff changeset
   347
    raise ValueError('invalid operator %r' % op)
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diff changeset
   348
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   349
def analyze(x):
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371c2a39eead revset: make analyze() a separate step from optimize()
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diff changeset
   350
    """Transform raw parsed tree to evaluatable tree which can be fed to
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diff changeset
   351
    optimize() or getset()
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diff changeset
   352
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diff changeset
   353
    All pseudo operations should be mapped to real operations or functions
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diff changeset
   354
    defined in methods or symbols table respectively.
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diff changeset
   355
    """
34011
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   356
    return _analyze(x)
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diff changeset
   357
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
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diff changeset
   358
def _optimize(x):
13031
3da456d0c885 code style: prefer 'is' and 'is not' tests with singletons
Martin Geisler <mg@aragost.com>
parents: 12936
diff changeset
   359
    if x is None:
11279
62ccf4cd6e7f revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
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diff changeset
   360
        return 0, x
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diff changeset
   361
11275
c9ce8ecd6ca1 revset: introduce revset core
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parents:
diff changeset
   362
    op = x[0]
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diff changeset
   363
    if op in ('string', 'symbol'):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
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parents: 34131
diff changeset
   364
        return 0.5, x # single revisions are small
16859
eeb464ed7275 revset: drop unreachable code
Bryan O'Sullivan <bryano@fb.com>
parents: 16838
diff changeset
   365
    elif op == 'and':
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
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parents: 34131
diff changeset
   366
        wa, ta = _optimize(x[1])
53fb09c73ba8 revset: remove "small" argument from "_optimize"
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diff changeset
   367
        wb, tb = _optimize(x[2])
29116
0c9b05dae010 revset: unnest isonly() closure from optimize()
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diff changeset
   368
        w = min(wa, wb)
20499
2efd608473fb revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents: 20498
diff changeset
   369
34065
c6c8a52e28c9 revset: optimize "draft() & ::x" pattern
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diff changeset
   370
        # (draft/secret/_notpublic() & ::x) have a fast path
c6c8a52e28c9 revset: optimize "draft() & ::x" pattern
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parents: 34047
diff changeset
   371
        m = _match('_() & ancestors(_)', ('and', ta, tb))
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diff changeset
   372
        if m and getsymbol(m[1]) in {'draft', 'secret', '_notpublic'}:
c6c8a52e28c9 revset: optimize "draft() & ::x" pattern
Jun Wu <quark@fb.com>
parents: 34047
diff changeset
   373
            return w, _build('_phaseandancestors(_, _)', m[1], m[2])
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diff changeset
   374
20499
2efd608473fb revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents: 20498
diff changeset
   375
        # (::x and not ::y)/(not ::y and ::x) have a fast path
34044
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   376
        m = _matchonly(ta, tb) or _matchonly(tb, ta)
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   377
        if m:
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   378
            return w, _build('only(_, _)', *m[1:])
20499
2efd608473fb revset: optimize missing ancestor expressions
Siddharth Agarwal <sid0@fb.com>
parents: 20498
diff changeset
   379
34046
f23cbca9b277 revsetlang: match tree by helper function on optimize
Yuya Nishihara <yuya@tcha.org>
parents: 34044
diff changeset
   380
        m = _match('not _', tb)
f23cbca9b277 revsetlang: match tree by helper function on optimize
Yuya Nishihara <yuya@tcha.org>
parents: 34044
diff changeset
   381
        if m:
f23cbca9b277 revsetlang: match tree by helper function on optimize
Yuya Nishihara <yuya@tcha.org>
parents: 34044
diff changeset
   382
            return wa, ('difference', ta, m[1])
11279
62ccf4cd6e7f revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents: 11278
diff changeset
   383
        if wa > wb:
34020
37b82485097f revset: do not flip "and" arguments when optimizing
Jun Wu <quark@fb.com>
parents: 34016
diff changeset
   384
            op = 'andsmally'
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   385
        return w, (op, ta, tb)
11279
62ccf4cd6e7f revset: optimize the parse tree directly
Matt Mackall <mpm@selenic.com>
parents: 11278
diff changeset
   386
    elif op == 'or':
25343
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   387
        # 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: 25342
diff changeset
   388
        # lots of trivial revisions: 'a + b + c()' to '_list(a b) + c()'
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   389
        ws, ts, ss = [], [], []
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   390
        def flushss():
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   391
            if not ss:
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   392
                return
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   393
            if len(ss) == 1:
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   394
                w, t = ss[0]
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   395
            else:
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   396
                s = '\0'.join(t[1] for w, t in ss)
34044
b862e6fca7ac revsetlang: build optimized tree by helper function
Yuya Nishihara <yuya@tcha.org>
parents: 34020
diff changeset
   397
                y = _build('_list(_)', ('string', s))
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   398
                w, t = _optimize(y)
25343
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   399
            ws.append(w)
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   400
            ts.append(t)
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   401
            del ss[:]
29929
b3845cab4ddc revset: wrap arguments of 'or' by 'list' node
Yuya Nishihara <yuya@tcha.org>
parents: 29922
diff changeset
   402
        for y in getlist(x[1]):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   403
            w, t = _optimize(y)
25996
b12e00a05d57 revset: prevent crash caused by empty group expression while optimizing "or"
Yuya Nishihara <yuya@tcha.org>
parents: 25995
diff changeset
   404
            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: 25342
diff changeset
   405
                ss.append((w, t))
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   406
                continue
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   407
            flushss()
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   408
            ws.append(w)
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   409
            ts.append(t)
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   410
        flushss()
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   411
        if len(ts) == 1:
7fbef7932af9 revset: optimize 'or' operation of trivial revisions to a list
Yuya Nishihara <yuya@tcha.org>
parents: 25342
diff changeset
   412
            return ws[0], ts[0] # 'or' operation is fully optimized out
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   413
        return max(ws), (op, ('list',) + tuple(ts))
11275
c9ce8ecd6ca1 revset: introduce revset core
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   414
    elif op == 'not':
25191
08d1ef09ed37 revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents: 25149
diff changeset
   415
        # Optimize not public() to _notpublic() because we have a fast version
34046
f23cbca9b277 revsetlang: match tree by helper function on optimize
Yuya Nishihara <yuya@tcha.org>
parents: 34044
diff changeset
   416
        if _match('public()', x[1]):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   417
            o = _optimize(_build('_notpublic()'))
25191
08d1ef09ed37 revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents: 25149
diff changeset
   418
            return o[0], o[1]
08d1ef09ed37 revset: optimize not public revset
Laurent Charignon <lcharignon@fb.com>
parents: 25149
diff changeset
   419
        else:
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   420
            o = _optimize(x[1])
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   421
            return o[0], (op, o[1])
30803
d389f19f14aa revset: do not transform range* operators in parsed tree
Yuya Nishihara <yuya@tcha.org>
parents: 30802
diff changeset
   422
    elif op == 'rangeall':
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   423
        return 1, x
30803
d389f19f14aa revset: do not transform range* operators in parsed tree
Yuya Nishihara <yuya@tcha.org>
parents: 30802
diff changeset
   424
    elif op in ('rangepre', 'rangepost', 'parentpost'):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   425
        o = _optimize(x[1])
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   426
        return o[0], (op, o[1])
33415
371f59c6a89e revset: do not compute weight for integer literal argument
Yuya Nishihara <yuya@tcha.org>
parents: 33336
diff changeset
   427
    elif op in ('dagrange', 'range'):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   428
        wa, ta = _optimize(x[1])
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   429
        wb, tb = _optimize(x[2])
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   430
        return wa + wb, (op, ta, tb)
33416
9467d5337292 revset: add experimental relation and subscript operators
Yuya Nishihara <yuya@tcha.org>
parents: 33415
diff changeset
   431
    elif op in ('parent', 'ancestor', 'relation', 'subscript'):
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   432
        w, t = _optimize(x[1])
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   433
        return w, (op, t, x[2])
33416
9467d5337292 revset: add experimental relation and subscript operators
Yuya Nishihara <yuya@tcha.org>
parents: 33415
diff changeset
   434
    elif op == 'relsubscript':
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   435
        w, t = _optimize(x[1])
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   436
        return w, (op, t, x[2], x[3])
27987
b19d8d5d6b51 revset: flatten chained 'list' operations (aka function args) (issue5072)
Yuya Nishihara <yuya@tcha.org>
parents: 27945
diff changeset
   437
    elif op == 'list':
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   438
        ws, ts = zip(*(_optimize(y) 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
   439
        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
   440
    elif op == 'keyvalue':
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   441
        w, t = _optimize(x[2])
29766
5004ef47f437 revset: fix keyword arguments to go through optimization process
Yuya Nishihara <yuya@tcha.org>
parents: 29646
diff changeset
   442
        return w, (op, x[1], t)
11275
c9ce8ecd6ca1 revset: introduce revset core
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   443
    elif op == 'func':
29441
9e8d258708bb revset: check invalid function syntax "func-name"() explicitly
Yuya Nishihara <yuya@tcha.org>
parents: 29425
diff changeset
   444
        f = getsymbol(x[1])
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   445
        wa, ta = _optimize(x[2])
34273
b0790bebfcf8 revset: move weight information to predicate
Jun Wu <quark@fb.com>
parents: 34272
diff changeset
   446
        w = getattr(symbols.get(f), '_weight', 1)
34011
1b28525e6698 revset: remove order information from tree (API)
Jun Wu <quark@fb.com>
parents: 34010
diff changeset
   447
        return w + wa, (op, x[1], ta)
29896
104914b03b83 revset: make optimize() reject unknown operators
Yuya Nishihara <yuya@tcha.org>
parents: 29814
diff changeset
   448
    raise ValueError('invalid operator %r' % op)
11275
c9ce8ecd6ca1 revset: introduce revset core
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
   449
29119
a032ebea4e97 revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents: 29118
diff changeset
   450
def optimize(tree):
29905
371c2a39eead revset: make analyze() a separate step from optimize()
Yuya Nishihara <yuya@tcha.org>
parents: 29904
diff changeset
   451
    """Optimize evaluatable tree
371c2a39eead revset: make analyze() a separate step from optimize()
Yuya Nishihara <yuya@tcha.org>
parents: 29904
diff changeset
   452
371c2a39eead revset: make analyze() a separate step from optimize()
Yuya Nishihara <yuya@tcha.org>
parents: 29904
diff changeset
   453
    All pseudo operations should be transformed beforehand.
371c2a39eead revset: make analyze() a separate step from optimize()
Yuya Nishihara <yuya@tcha.org>
parents: 29904
diff changeset
   454
    """
34272
53fb09c73ba8 revset: remove "small" argument from "_optimize"
Jun Wu <quark@fb.com>
parents: 34131
diff changeset
   455
    _weight, newtree = _optimize(tree)
29119
a032ebea4e97 revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents: 29118
diff changeset
   456
    return newtree
a032ebea4e97 revset: factor out public optimize() function from recursion
Yuya Nishihara <yuya@tcha.org>
parents: 29118
diff changeset
   457
23845
0a7fd54d4e60 revset: introduce "_parsealiasdecl" to parse alias declarations strictly
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23844
diff changeset
   458
# the set of valid characters for the initial letter of symbols in
0a7fd54d4e60 revset: introduce "_parsealiasdecl" to parse alias declarations strictly
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23844
diff changeset
   459
# alias declarations and definitions
34069
e18119b1ad5d py3: fix mixed bytes/unicode in revsetlang._aliassyminitletters
Yuya Nishihara <yuya@tcha.org>
parents: 34065
diff changeset
   460
_aliassyminitletters = _syminitletters | {'$'}
23845
0a7fd54d4e60 revset: introduce "_parsealiasdecl" to parse alias declarations strictly
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23844
diff changeset
   461
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   462
def _parsewith(spec, lookup=None, syminitletters=None):
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   463
    """Generate a parse tree of given spec with given tokenizing options
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   464
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   465
    >>> _parsewith(b'foo($1)', syminitletters=_aliassyminitletters)
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   466
    ('func', ('symbol', 'foo'), ('symbol', '$1'))
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   467
    >>> _parsewith(b'$1')
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   468
    Traceback (most recent call last):
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   469
      ...
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   470
    ParseError: ("syntax error in revset '$1'", 0)
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   471
    >>> _parsewith(b'foo bar')
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   472
    Traceback (most recent call last):
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   473
      ...
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   474
    ParseError: ('invalid token', 4)
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   475
    """
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   476
    p = parser.parser(elements)
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   477
    tree, pos = p.parse(tokenize(spec, lookup=lookup,
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   478
                                 syminitletters=syminitletters))
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   479
    if pos != len(spec):
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   480
        raise error.ParseError(_('invalid token'), pos)
29769
abe4eecc3253 revset: resolve ambiguity of x^:y before alias expansion
Yuya Nishihara <yuya@tcha.org>
parents: 29767
diff changeset
   481
    return _fixops(parser.simplifyinfixops(tree, ('list', 'or')))
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   482
28870
475dad3432fd parser: add stub class that will host alias parsing and expansion
Yuya Nishihara <yuya@tcha.org>
parents: 28869
diff changeset
   483
class _aliasrules(parser.basealiasrules):
475dad3432fd parser: add stub class that will host alias parsing and expansion
Yuya Nishihara <yuya@tcha.org>
parents: 28869
diff changeset
   484
    """Parsing and expansion rule set of revset aliases"""
475dad3432fd parser: add stub class that will host alias parsing and expansion
Yuya Nishihara <yuya@tcha.org>
parents: 28869
diff changeset
   485
    _section = _('revset alias')
29074
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   486
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   487
    @staticmethod
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   488
    def _parse(spec):
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   489
        """Parse alias declaration/definition ``spec``
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   490
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   491
        This allows symbol names to use also ``$`` as an initial letter
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   492
        (for backward compatibility), and callers of this function should
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   493
        examine whether ``$`` is used also for unexpected symbols or not.
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   494
        """
e7c679738503 revset: define _parsealias() in _aliasrules class
Yuya Nishihara <yuya@tcha.org>
parents: 29073
diff changeset
   495
        return _parsewith(spec, syminitletters=_aliassyminitletters)
28910
1203159c8928 parser: factor out _trygetfunc() that extracts function name and arguments
Yuya Nishihara <yuya@tcha.org>
parents: 28898
diff changeset
   496
1203159c8928 parser: factor out _trygetfunc() that extracts function name and arguments
Yuya Nishihara <yuya@tcha.org>
parents: 28898
diff changeset
   497
    @staticmethod
1203159c8928 parser: factor out _trygetfunc() that extracts function name and arguments
Yuya Nishihara <yuya@tcha.org>
parents: 28898
diff changeset
   498
    def _trygetfunc(tree):
1203159c8928 parser: factor out _trygetfunc() that extracts function name and arguments
Yuya Nishihara <yuya@tcha.org>
parents: 28898
diff changeset
   499
        if tree[0] == 'func' and tree[1][0] == 'symbol':
1203159c8928 parser: factor out _trygetfunc() that extracts function name and arguments
Yuya Nishihara <yuya@tcha.org>
parents: 28898
diff changeset
   500
            return tree[1][1], getlist(tree[2])
28870
475dad3432fd parser: add stub class that will host alias parsing and expansion
Yuya Nishihara <yuya@tcha.org>
parents: 28869
diff changeset
   501
33336
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   502
def expandaliases(tree, aliases, warn=None):
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   503
    """Expand aliases in a tree, aliases is a list of (name, value) tuples"""
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   504
    aliases = _aliasrules.buildmap(aliases)
28895
4bf9ed7a260e parser: move functions that process alias expansion to rule-set class
Yuya Nishihara <yuya@tcha.org>
parents: 28894
diff changeset
   505
    tree = _aliasrules.expand(aliases, tree)
29922
ae933e3e2226 revset: remove showwarning option from expandaliases()
Yuya Nishihara <yuya@tcha.org>
parents: 29906
diff changeset
   506
    # warn about problematic (but not referred) aliases
33336
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   507
    if warn is not None:
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   508
        for name, alias in sorted(aliases.iteritems()):
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   509
            if alias.error and not alias.warned:
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   510
                warn(_('warning: %s\n') % (alias.error))
4672db164c98 revset: make repo.anyrevs accept customized alias override (API)
Jun Wu <quark@fb.com>
parents: 32913
diff changeset
   511
                alias.warned = True
23725
6a81f88758aa revset: delay showing parse error for the revset alias until it is referred
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23720
diff changeset
   512
    return tree
14098
9f5a0acb0056 revset aliases
Alexander Solovyov <alexander@solovyov.net>
parents: 14073
diff changeset
   513
23742
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   514
def foldconcat(tree):
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   515
    """Fold elements to be concatenated by `##`
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   516
    """
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   517
    if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'):
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   518
        return tree
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   519
    if tree[0] == '_concat':
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   520
        pending = [tree]
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   521
        l = []
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   522
        while pending:
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   523
            e = pending.pop()
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   524
            if e[0] == '_concat':
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   525
                pending.extend(reversed(e[1:]))
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   526
            elif e[0] in ('string', 'symbol'):
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   527
                l.append(e[1])
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   528
            else:
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   529
                msg = _("\"##\" can't concatenate \"%s\" element") % (e[0])
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   530
                raise error.ParseError(msg)
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   531
        return ('string', ''.join(l))
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   532
    else:
3a4d8a6ce432 revset: introduce new operator "##" to concatenate strings/symbols at runtime
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 23729
diff changeset
   533
        return tuple(foldconcat(t) for t in tree)
14098
9f5a0acb0056 revset aliases
Alexander Solovyov <alexander@solovyov.net>
parents: 14073
diff changeset
   534
20779
ffc2295c6b80 revset: pass a lookup function to the tokenizer
Matt Mackall <mpm@selenic.com>
parents: 20754
diff changeset
   535
def parse(spec, lookup=None):
29073
81bac118f9e2 revset: factor out common parsing function
Yuya Nishihara <yuya@tcha.org>
parents: 29072
diff changeset
   536
    return _parsewith(spec, lookup=lookup)
20779
ffc2295c6b80 revset: pass a lookup function to the tokenizer
Matt Mackall <mpm@selenic.com>
parents: 20754
diff changeset
   537
31604
7eac6fcf2ffa revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents: 31603
diff changeset
   538
def _quote(s):
31605
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   539
    r"""Quote a value in order to make it safe for the revset engine.
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   540
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   541
    >>> _quote(b'asdf')
31605
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   542
    "'asdf'"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   543
    >>> _quote(b"asdf'\"")
31605
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   544
    '\'asdf\\\'"\''
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   545
    >>> _quote(b'asdf\'')
31606
0b3eb280564b revsetlang: perform quoting using ui.escapestr instead of repr()
Augie Fackler <augie@google.com>
parents: 31605
diff changeset
   546
    "'asdf\\''"
31605
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   547
    >>> _quote(1)
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   548
    "'1'"
0b94c19b641c revsetlang: add docstring with some tests to _quote
Augie Fackler <augie@google.com>
parents: 31604
diff changeset
   549
    """
31636
f3b151278655 revsetlang: fix _quote on int on python3
Augie Fackler <raf@durin42.com>
parents: 31606
diff changeset
   550
    return "'%s'" % util.escapestr(pycompat.bytestr(s))
31604
7eac6fcf2ffa revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents: 31603
diff changeset
   551
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   552
def formatspec(expr, *args):
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   553
    '''
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   554
    This is a convenience function for using revsets internally, and
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   555
    escapes arguments appropriately. Aliases are intentionally ignored
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   556
    so that intended expression behavior isn't accidentally subverted.
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   557
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   558
    Supported arguments:
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   559
15266
8bea39ca9acb revset: add %r for embedded revset support to formatspec
Matt Mackall <mpm@selenic.com>
parents: 15153
diff changeset
   560
    %r = revset expression, parenthesized
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   561
    %d = int(arg), no quoting
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   562
    %s = string(arg), escaped and single-quoted
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   563
    %b = arg.branch(), escaped and single-quoted
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   564
    %n = hex(arg), single-quoted
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   565
    %% = a literal '%'
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   566
15266
8bea39ca9acb revset: add %r for embedded revset support to formatspec
Matt Mackall <mpm@selenic.com>
parents: 15153
diff changeset
   567
    Prefixing the type with 'l' specifies a parenthesized list of that type.
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   568
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   569
    >>> formatspec(b'%r:: and %lr', b'10 or 11', (b"this()", b"that()"))
15268
bd5103819c2e revset: fix %r handling in formatspec
Matt Mackall <mpm@selenic.com>
parents: 15266
diff changeset
   570
    '(10 or 11):: and ((this()) or (that()))'
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   571
    >>> formatspec(b'%d:: and not %d::', 10, 20)
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   572
    '10:: and not 20::'
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   573
    >>> formatspec(b'%ld or %ld', [], [1])
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   574
    "_list('') or 1"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   575
    >>> formatspec(b'keyword(%s)', b'foo\\xe9')
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   576
    "keyword('foo\\\\xe9')"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   577
    >>> b = lambda: b'default'
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   578
    >>> b.branch = b
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   579
    >>> formatspec(b'branch(%b)', b)
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   580
    "branch('default')"
34131
0fa781320203 doctest: bulk-replace string literals with b'' for Python 3
Yuya Nishihara <yuya@tcha.org>
parents: 34069
diff changeset
   581
    >>> formatspec(b'root(%ls)', [b'a', b'b', b'c', b'd'])
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   582
    "root(_list('a\\x00b\\x00c\\x00d'))"
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   583
    '''
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   584
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   585
    def argtype(c, arg):
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   586
        if c == 'd':
31603
fbe8502c4480 revsetlang: portably bytestring-ify another pair of int() calls
Augie Fackler <augie@google.com>
parents: 31565
diff changeset
   587
            return '%d' % int(arg)
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   588
        elif c == 's':
31604
7eac6fcf2ffa revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents: 31603
diff changeset
   589
            return _quote(arg)
15266
8bea39ca9acb revset: add %r for embedded revset support to formatspec
Matt Mackall <mpm@selenic.com>
parents: 15153
diff changeset
   590
        elif c == 'r':
8bea39ca9acb revset: add %r for embedded revset support to formatspec
Matt Mackall <mpm@selenic.com>
parents: 15153
diff changeset
   591
            parse(arg) # make sure syntax errors are confined
8bea39ca9acb revset: add %r for embedded revset support to formatspec
Matt Mackall <mpm@selenic.com>
parents: 15153
diff changeset
   592
            return '(%s)' % arg
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   593
        elif c == 'n':
31604
7eac6fcf2ffa revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents: 31603
diff changeset
   594
            return _quote(node.hex(arg))
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   595
        elif c == 'b':
31604
7eac6fcf2ffa revsetlang: move quoting function to not be a closure
Augie Fackler <augie@google.com>
parents: 31603
diff changeset
   596
            return _quote(arg.branch())
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   597
15595
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   598
    def listexp(s, t):
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   599
        l = len(s)
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   600
        if l == 0:
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   601
            return "_list('')"
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   602
        elif l == 1:
15595
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   603
            return argtype(t, s[0])
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   604
        elif t == 'd':
31565
553ad16b274f revsetlang: portably turn int into bytestring
Augie Fackler <augie@google.com>
parents: 31441
diff changeset
   605
            return "_intlist('%s')" % "\0".join('%d' % int(a) for a in s)
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   606
        elif t == 's':
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   607
            return "_list('%s')" % "\0".join(s)
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   608
        elif t == 'n':
20569
0d4be103c734 revset: added _hexlist method to replace _list for %ln
Lucas Moscovicz <lmoscovicz@fb.com>
parents: 20566
diff changeset
   609
            return "_hexlist('%s')" % "\0".join(node.hex(a) for a in s)
15898
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   610
        elif t == 'b':
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   611
            return "_list('%s')" % "\0".join(a.branch() for a in s)
6902e13ddd03 revset: optimize building large lists in formatrevspec
Matt Mackall <mpm@selenic.com>
parents: 15837
diff changeset
   612
15791
a814f8fcc65a Use explicit integer division
Martin Geisler <mg@aragost.com>
parents: 15726
diff changeset
   613
        m = l // 2
15595
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   614
        return '(%s or %s)' % (listexp(s[:m], t), listexp(s[m:], t))
a585d78e7b2f revset: balance %l or-expressions (issue3129)
Matt Mackall <mpm@selenic.com>
parents: 15532
diff changeset
   615
31440
f784ba187089 py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
parents: 31385
diff changeset
   616
    expr = pycompat.bytestr(expr)
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   617
    ret = ''
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   618
    pos = 0
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   619
    arg = 0
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   620
    while pos < len(expr):
31440
f784ba187089 py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
parents: 31385
diff changeset
   621
        c = expr[pos]
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   622
        if c == '%':
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   623
            pos += 1
31440
f784ba187089 py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
parents: 31385
diff changeset
   624
            d = expr[pos]
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   625
            if d == '%':
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   626
                ret += d
15268
bd5103819c2e revset: fix %r handling in formatspec
Matt Mackall <mpm@selenic.com>
parents: 15266
diff changeset
   627
            elif d in 'dsnbr':
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   628
                ret += argtype(d, args[arg])
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   629
                arg += 1
15140
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   630
            elif d == 'l':
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   631
                # a list of some type
353a1ba928f6 revset: add 'l' flag to formatspec for args
Matt Mackall <mpm@selenic.com>
parents: 15138
diff changeset
   632
                pos += 1
31440
f784ba187089 py3: use bytestr wrapper in revsetlang.formatspec()
Yuya Nishihara <yuya@tcha.org>
parents: 31385
diff changeset
   633
                d = expr[pos]
15596
2555f441a32f merge with stable
Matt Mackall <mpm@selenic.com>
parents: 15595
diff changeset
   634
                ret += listexp(list(args[arg]), d)
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   635
                arg += 1
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   636
            else:
29389
98e8313dcd9e i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents: 29365
diff changeset
   637
                raise error.Abort(_('unexpected revspec format character %s')
98e8313dcd9e i18n: translate abort messages
liscju <piotr.listkiewicz@gmail.com>
parents: 29365
diff changeset
   638
                                  % d)
14901
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   639
        else:
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   640
            ret += c
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   641
        pos += 1
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   642
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   643
    return ret
a773119f30ba revset: add formatspec convenience query builder
Matt Mackall <mpm@selenic.com>
parents: 14900
diff changeset
   644
16218
81a1a00f5738 debugrevspec: pretty print output
Patrick Mezard <patrick@mezard.eu>
parents: 16185
diff changeset
   645
def prettyformat(tree):
25253
3f1a9b44b8c2 parser: move prettyformat() function from revset module
Yuya Nishihara <yuya@tcha.org>
parents: 25251
diff changeset
   646
    return parser.prettyformat(tree, ('string', 'symbol'))
16218
81a1a00f5738 debugrevspec: pretty print output
Patrick Mezard <patrick@mezard.eu>
parents: 16185
diff changeset
   647
19719
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   648
def depth(tree):
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   649
    if isinstance(tree, tuple):
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   650
        return max(map(depth, tree)) + 1
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   651
    else:
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   652
        return 0
2f9d5c5256ea revset: add helper function to get revset parse tree depth
Alexander Plavin <alexander@plav.in>
parents: 19706
diff changeset
   653
19720
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   654
def funcsused(tree):
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   655
    if not isinstance(tree, tuple) or tree[0] in ('string', 'symbol'):
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   656
        return set()
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   657
    else:
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   658
        funcs = set()
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   659
        for s in tree[1:]:
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   660
            funcs |= funcsused(s)
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   661
        if tree[0] == 'func':
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   662
            funcs.add(tree[1][1])
f0b992a9be9c revset: add helper function to get functions used in a revset parse tree
Alexander Plavin <alexander@plav.in>
parents: 19719
diff changeset
   663
        return funcs