about summary refs log tree commit diff stats
path: root/config.default.h
diff options
context:
space:
mode:
authorAnselm R. Garbe <arg@suckless.org>2007-01-23 12:00:49 +0100
committerAnselm R. Garbe <arg@suckless.org>2007-01-23 12:00:49 +0100
commit17ec726b494c2ee6e6b5dbe00bb83b2d931b3fc0 (patch)
treed42812e3d2cc53d435abc200b0aa77a7ba331895 /config.default.h
parent373b11de11fd5cee875ef521e3ac0527565c4721 (diff)
downloaddwm-17ec726b494c2ee6e6b5dbe00bb83b2d931b3fc0.tar.gz
this version should also work with cornercases (like unmanage during !issel, etc.)
Diffstat (limited to 'config.default.h')
0 files changed, 0 insertions, 0 deletions
 

generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-15 12:49:32 +0000


 


ight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
# Example program showing exceptions built out of delimited continuations.

# Since Mu is statically typed, we can't build an all-purpose higher-order
# function called 'try'; it wouldn't know how many arguments the function
# passed to it needs to take, what their types are, etc. Instead, until Mu
# gets macros we'll directly use the continuation primitives.

def main [
  local-scope
  foo false/no-exception
  foo true/raise-exception
]

# example showing exception handling
def foo raise-exception?:bool [
  local-scope
  load-inputs
  # To run an instruction of the form:
  #   try f ...
  # write this:
  #   call-with-continuation-mark 999/exception-tag, f, ...
  # By convention we reserve tag 999 for exceptions.
  #
  # 'f' above may terminate at either a regular 'return' or a 'return-with-continuation-mark'.
  # We never re-call the continuation returned in the latter case;
  # its existence merely signals that an exception was raised.
  # So just treat it as a boolean.
  # The other inputs and outputs to 'call-with-continuation-mark' depend on
  # the function it is called with.
  exception-raised?:bool, err:text, result:num <- call-with-continuation-mark 999/exception-tag, f, raise-exception?
  {
    break-if exception-raised?
    $print [normal exit; result ] result 10/newline
  }
  {
    break-unless exception-raised?
    $print [error caught: ] err 10/newline
  }
]

# A callee function that can raise an exception has some weird constraints at
# the moment.
#
# The caller's 'call-with-continuation-mark' instruction may return with
# either a regular 'return' or a 'return-continuation-until-mark'.
# To handle both cases, regular 'return' instructions in the callee must
# prepend an extra 0 result, in place of the continuation that may have been
# returned.
# This change to number of outputs violates our type system, so the call has
# to be dynamically typed. The callee can't have a header.
def f [
  local-scope
  raise-exception?:bool <- next-input
  {
    break-unless raise-exception?
    # throw/raise: 2 results + implicit continuation (ignoring the continuation tag)
    return-continuation-until-mark 999/exception-tag, [error will robinson!], 0/unused
  }
  # normal return: 3 results including 0 continuation placeholder at start
  return 0/continuation-placeholder, null/no-error, 34/regular-result
]