[[tags: egg]]

== scan-input-lines

[[toc:]]

{{scan-input-lines}} provides a single procedure of the same name that's
useful for scanning through lines from an input port.

==== scan-input-lines

<procedure>(scan-input-lines REGEXP [PORT])</procedure>

Reads lines from {{PORT}} (defaults to the result of {{(current-input-port)}})
using {{read-line}} and returns the result of {{(irregex-search REGEXP LINE)}},
if the match succeeds. If no match could be found, {{#f}} is returned.

{{REGEXP}} may also be a procedure of one argument which is called for each
input line and should return a non-false value on success, which will then
be the result of the call to {{scan-input-lines}}.

=== Author

The CHICKEN Team

=== License

  Copyright (c) 2016, The CHICKEN Team
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
  conditions are met:
  
    Redistributions of source code must retain the above copyright notice, this list of conditions and the following
      disclaimer.
    Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided with the distribution.
    Neither the name of the author nor the names of its contributors may be used to endorse or promote
      products derived from this software without specific prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  POSSIBILITY OF SUCH DAMAGE.

=== Version History

; 1.0 : Taken from the utils unit and released as an egg for CHICKEN 5.