$ HGENCODING=utf-8

  $ export HGENCODING

  $ try() {

  >   hg debugrevspec --debug $@

  > }

  $ log() {

  >   hg log --template '{rev}\n' -r "$1"

  > }

  $ hg init repo

  $ cd repo

  $ echo a > a

  $ hg branch a

  marked working directory as branch a

  $ hg ci -Aqm0

  $ echo b > b

  $ hg branch b

  marked working directory as branch b

  $ hg ci -Aqm1

  $ rm a

  $ hg branch a-b-c-

  marked working directory as branch a-b-c-

  $ hg ci -Aqm2 -u Bob

  $ hg co 1

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg branch +a+b+c+

  marked working directory as branch +a+b+c+

  $ hg ci -Aqm3

  $ hg co 2  # interleave

  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ echo bb > b

  $ hg branch -- -a-b-c-

  marked working directory as branch -a-b-c-

  $ hg ci -Aqm4 -d "May 12 2005"

  $ hg co 3

  2 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg branch /a/b/c/

  marked working directory as branch /a/b/c/

  $ hg ci -Aqm"5 bug"

  $ hg merge 4

  1 files updated, 0 files merged, 1 files removed, 0 files unresolved

  (branch merge, don't forget to commit)

  $ hg branch _a_b_c_

  marked working directory as branch _a_b_c_

  $ hg ci -Aqm"6 issue619"

  $ hg branch .a.b.c.

  marked working directory as branch .a.b.c.

  $ hg ci -Aqm7

  $ hg branch all

  marked working directory as branch all

  $ hg ci --close-branch -Aqm8

  abort: can only close branch heads

  [255]

  $ hg co 4

  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

  $ hg branch é

  marked working directory as branch é

  $ hg ci -Aqm9

  $ hg tag -r6 1.0

  $ hg clone --quiet -U -r 7 . ../remote1

  $ hg clone --quiet -U -r 8 . ../remote2

  $ echo "[paths]" >> .hg/hgrc

  $ echo "default = ../remote1" >> .hg/hgrc

names that should work without quoting

  $ try a

  ('symbol', 'a')

  0

  $ try b-a

  ('minus', ('symbol', 'b'), ('symbol', 'a'))

  1

  $ try _a_b_c_

  ('symbol', '_a_b_c_')

  6

  $ try _a_b_c_-a

  ('minus', ('symbol', '_a_b_c_'), ('symbol', 'a'))

  6

  $ try .a.b.c.

  ('symbol', '.a.b.c.')

  7

  $ try .a.b.c.-a

  ('minus', ('symbol', '.a.b.c.'), ('symbol', 'a'))

  7

  $ try -- '-a-b-c-' # complains

  hg: parse error at 7: not a prefix: end

  [255]

  $ log -a-b-c- # succeeds with fallback

  4

  $ try -- -a-b-c--a # complains

  ('minus', ('minus', ('minus', ('negate', ('symbol', 'a')), ('symbol', 'b')), ('symbol', 'c')), ('negate', ('symbol', 'a')))

  abort: unknown revision '-a'!

  [255]

  $ try é

  ('symbol', '\xc3\xa9')

  9

quoting needed

  $ try '"-a-b-c-"-a'

  ('minus', ('string', '-a-b-c-'), ('symbol', 'a'))

  4

  $ log '1 or 2'

  1

  2

  $ log '1|2'

  1

  2

  $ log '1 and 2'

  $ log '1&2'

  $ try '1&2|3' # precedence - and is higher

  ('or', ('and', ('symbol', '1'), ('symbol', '2')), ('symbol', '3'))

  3

  $ try '1|2&3'

  ('or', ('symbol', '1'), ('and', ('symbol', '2'), ('symbol', '3')))

  1

  $ try '1&2&3' # associativity

  ('and', ('and', ('symbol', '1'), ('symbol', '2')), ('symbol', '3'))

  $ try '1|(2|3)'

  ('or', ('symbol', '1'), ('group', ('or', ('symbol', '2'), ('symbol', '3'))))

  1

  2

  3

  $ log '1.0' # tag

  6

  $ log 'a' # branch

  0

  $ log '2785f51ee'

  0

  $ log 'date(2005)'

  4

  $ log 'date(this is a test)'

  hg: parse error at 10: unexpected token: symbol

  [255]

  $ log 'date()'

  hg: parse error: date requires a string

  [255]

  $ log 'date'

  hg: parse error: can't use date here

  [255]

  $ log 'date('

  hg: parse error at 5: not a prefix: end

  [255]

  $ log 'date(tip)'

  abort: invalid date: 'tip'

  [255]

  $ log '"date"'

  abort: unknown revision 'date'!

  [255]

  $ log 'date(2005) and 1::'

  4

  $ log 'ancestor(1)'

  hg: parse error: ancestor requires two arguments

  [255]

  $ log 'ancestor(4,5)'

  1

  $ log 'ancestor(4,5) and 4'

  $ log 'ancestors(5)'

  0

  1

  3

  5

  $ log 'author(bob)'

  2

  $ log 'branch(é)'

  8

  9

  $ log 'children(ancestor(4,5))'

  2

  3

  $ log 'closed()'

  $ log 'contains(a)'

  0

  1

  3

  5

  $ log 'descendants(2 or 3)'

  2

  3

  4

  5

  6

  7

  8

  9

  $ log 'file(b)'

  1

  4

  $ log 'follow()'

  0

  1

  2

  4

  8

  9

  $ log 'grep("issue\d+")'

  6

  $ try 'grep("(")' # invalid regular expression

  ('func', ('symbol', 'grep'), ('string', '('))

  hg: parse error: invalid match pattern: unbalanced parenthesis

  [255]

  $ try 'grep("\bissue\d+")'

  ('func', ('symbol', 'grep'), ('string', '\x08issue\\d+'))

  $ try 'grep(r"\bissue\d+")'

  ('func', ('symbol', 'grep'), ('string', '\\bissue\\d+'))

  6

  $ try 'grep(r"\")'

  hg: parse error at 7: unterminated string

  [255]

  $ log 'head()'

  0

  1

  2

  3

  4

  5

  6

  7

  9

  $ log 'heads(6::)'

  7

  $ log 'keyword(issue)'

  6

  $ log 'limit(head(), 1)'

  0

  $ log 'max(contains(a))'

  5

  $ log 'min(contains(a))'

  0

  $ log 'merge()'

  6

  $ log 'modifies(b)'

  4

  $ log 'id(5)'

  2

  $ log 'outgoing()'

  8

  9

  $ log 'outgoing("../remote1")'

  8

  9

  $ log 'outgoing("../remote2")'

  3

  5

  6

  7

  9

  $ log 'p1(merge())'

  5

  $ log 'p2(merge())'

  4

  $ log 'parents(merge())'

  4

  5

  $ log 'removes(a)'

  2

  6

  $ log 'roots(all())'

  0

  $ log 'reverse(2 or 3 or 4 or 5)'

  5

  4

  3

  2

  $ log 'rev(5)'

  5

  $ log 'sort(limit(reverse(all()), 3))'

  7

  8

  9

  $ log 'sort(2 or 3 or 4 or 5, date)'

  2

  3

  5

  4

  $ log 'tagged()'

  6

  $ log 'tag()'

  6

  $ log 'tag(1.0)'

  6

  $ log 'tag(tip)'

  9

  $ log 'user(bob)'

  2

  $ log '4::8'

  4

  8

  $ log '4:8'

  4

  5

  6

  7

  8

  $ log 'sort(!merge() & (modifies(b) | user(bob) | keyword(bug) | keyword(issue) & 1::9), "-date")'

  4

  2

  5

  $ log 'not 0 and 0:2'

  1

  2

  $ log 'not 1 and 0:2'

  0

  2

  $ log 'not 2 and 0:2'

  0

  1

  $ log '(1 and 2)::'

  $ log '(1 and 2):'

  $ log '(1 and 2):3'

  $ log 'sort(head(), -rev)'

  9

  7

  6

  5

  4

  3

  2

  1

  0

  $ log '4::8 - 8'

  4