comparison mercurial/parser.py @ 34073:7bbc4e113e5f

parser: stabilize output of prettyformat() by using byte-safe repr()

The format of leaf nodes is slightly changed so they look more similar to
internal nodes.

34072:30535fe47e78

from __future__ import absolute_import

from .i18n import _
from . import (
    error,
    util,
)

class parser(object):

        return util.unescapestr(s)
    except ValueError as e:
        # mangle Python's exception into our format
        raise error.ParseError(str(e).lower())

def _prettyformat(tree, leafnodes, level, lines):
    if not isinstance(tree, tuple) or tree[0] in leafnodes:
        lines.append((level, str(tree)))
    else:
        lines.append((level, '(%s' % tree[0]))
        for s in tree[1:]:
            _prettyformat(s, leafnodes, level + 1, lines)
        lines[-1:] = [(lines[-1][0], lines[-1][1] + ')')]

    ...     ('or',
    ...       ('symbol', '1'),
    ...       ('symbol', '2')),
    ...     ('symbol', '3')))
    (or
      ('symbol', '1')
      ('symbol', '2')
      ('symbol', '3'))
    >>> f(('func',
    ...     ('symbol', 'p1'),
    ...     ('or',
    ...       ('or',
    ...         ('func',

    ...                 ('symbol', '5'),
    ...                 ('symbol', '6')),
    ...               ('symbol', '7'))))),
    ...       ('symbol', '8'))))
    (func
      ('symbol', 'p1')
      (or
        (func
          ('symbol', 'sort')
          (list
            (or
              ('symbol', '1')
              ('symbol', '2')
              ('symbol', '3'))
            (negate
              ('symbol', 'rev'))))
        (and
          ('symbol', '4')
          (group
            (or
              ('symbol', '5')
              ('symbol', '6')
              ('symbol', '7'))))
        ('symbol', '8')))
    """
    if not isinstance(tree, tuple):
        return tree
    op = tree[0]
    if op not in targetnodes:

        >>> def pprint(tree):
        ...     print prettyformat(tree, ('_aliasarg', 'string', 'symbol'))
        >>> args = ['$1', '$2', 'foo']
        >>> pprint(builddefn('$1 or foo', args))
        (or
          ('_aliasarg', '$1')
          ('_aliasarg', 'foo'))
        >>> try:
        ...     builddefn('$1 or $bar', args)
        ... except error.ParseError as inst:
        ...     print parseerrordetail(inst)
        invalid symbol '$bar'
        >>> args = ['$1', '$10', 'foo']
        >>> pprint(builddefn('$10 or baz', args))
        (or
          ('_aliasarg', '$10')
          ('symbol', 'baz'))
        >>> pprint(builddefn('"$1" or "foo"', args))
        (or
          ('string', '$1')
          ('string', 'foo'))
        """
        tree = cls._parse(defn)
        if args:
            args = set(args)
        else:

34073:7bbc4e113e5f

from __future__ import absolute_import

from .i18n import _
from . import (
    encoding,
    error,
    util,
)

class parser(object):

        return util.unescapestr(s)
    except ValueError as e:
        # mangle Python's exception into our format
        raise error.ParseError(str(e).lower())

def _brepr(obj):
    if isinstance(obj, bytes):
        return b"'%s'" % util.escapestr(obj)
    return encoding.strtolocal(repr(obj))

def _prettyformat(tree, leafnodes, level, lines):
    if not isinstance(tree, tuple):
        lines.append((level, _brepr(tree)))
    elif tree[0] in leafnodes:
        rs = map(_brepr, tree[1:])
        lines.append((level, '(%s %s)' % (tree[0], ' '.join(rs))))
    else:
        lines.append((level, '(%s' % tree[0]))
        for s in tree[1:]:
            _prettyformat(s, leafnodes, level + 1, lines)
        lines[-1:] = [(lines[-1][0], lines[-1][1] + ')')]

    ...     ('or',
    ...       ('symbol', '1'),
    ...       ('symbol', '2')),
    ...     ('symbol', '3')))
    (or
      (symbol '1')
      (symbol '2')
      (symbol '3'))
    >>> f(('func',
    ...     ('symbol', 'p1'),
    ...     ('or',
    ...       ('or',
    ...         ('func',

    ...                 ('symbol', '5'),
    ...                 ('symbol', '6')),
    ...               ('symbol', '7'))))),
    ...       ('symbol', '8'))))
    (func
      (symbol 'p1')
      (or
        (func
          (symbol 'sort')
          (list
            (or
              (symbol '1')
              (symbol '2')
              (symbol '3'))
            (negate
              (symbol 'rev'))))
        (and
          (symbol '4')
          (group
            (or
              (symbol '5')
              (symbol '6')
              (symbol '7'))))
        (symbol '8')))
    """
    if not isinstance(tree, tuple):
        return tree
    op = tree[0]
    if op not in targetnodes:

        >>> def pprint(tree):
        ...     print prettyformat(tree, ('_aliasarg', 'string', 'symbol'))
        >>> args = ['$1', '$2', 'foo']
        >>> pprint(builddefn('$1 or foo', args))
        (or
          (_aliasarg '$1')
          (_aliasarg 'foo'))
        >>> try:
        ...     builddefn('$1 or $bar', args)
        ... except error.ParseError as inst:
        ...     print parseerrordetail(inst)
        invalid symbol '$bar'
        >>> args = ['$1', '$10', 'foo']
        >>> pprint(builddefn('$10 or baz', args))
        (or
          (_aliasarg '$10')
          (symbol 'baz'))
        >>> pprint(builddefn('"$1" or "foo"', args))
        (or
          (string '$1')
          (string 'foo'))
        """
        tree = cls._parse(defn)
        if args:
            args = set(args)
        else: