module/sxml/match.scm

   1 ;;; -*- mode: scheme; coding: utf-8; -*-
   2 ;;;
   3 ;;; Copyright (C) 2010, 2011 Free Software Foundation, Inc.
   4 ;;;
   5 ;;; This library is free software; you can redistribute it and/or modify it
   6 ;;; under the terms of the GNU Lesser General Public License as published by
   7 ;;; the Free Software Foundation; either version 3 of the License, or (at
   8 ;;; your option) any later version.
   9 ;;;
  10 ;;; This library is distributed in the hope that it will be useful, but
  11 ;;; WITHOUT ANY WARRANTY; without even the implied warranty of
  12 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
  13 ;;; General Public License for more details.
  14 ;;;
  15 ;;; You should have received a copy of the GNU Lesser General Public License
  16 ;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18 (define-module (sxml match)
  19   #:export (sxml-match
  20             sxml-match-let
  21             sxml-match-let*)
  22   #:use-module (srfi srfi-1)
  23   #:use-module (srfi srfi-11)
  24   #:use-module (ice-9 control))
  25
  26 \f
  27 ;;; Commentary:
  28 ;;;
  29 ;;; This module provides an SXML pattern matcher, written by Jim Bender.  This
  30 ;;; allows application code to match on SXML nodes and attributes without having
  31 ;;; to deal with the details of s-expression matching, without worrying about
  32 ;;; the order of attributes, etc.
  33 ;;;
  34 ;;; It is fully documented in the Guile Reference Manual.
  35 ;;;
  36 ;;; Code:
  37
  38
  39 \f
  40 ;;;
  41 ;;; PLT compatibility layer.
  42 ;;;
  43
  44 (define-syntax-rule (syntax-object->datum stx)
  45   (syntax->datum stx))
  46
  47 (define-syntax-rule (void)
  48   *unspecified*)
  49
  50 (define (raise-syntax-error x msg obj sub)
  51   (throw 'sxml-match-error x msg obj sub))
  52
  53 (define-syntax module
  54   (syntax-rules (provide require)
  55     ((_ name lang (provide p_ ...) (require r_ ...)
  56         body ...)
  57      (begin body ...))))
  58
  59 \f
  60 ;;;
  61 ;;; Include upstream source file.
  62 ;;;
  63
  64 ;; This file was taken from
  65 ;; <http://planet.plt-scheme.org/package-source/jim/sxml-match.plt/1/1/> on
  66 ;; 2010-05-24.  It was written by Jim Bender <benderjg2@aol.com> and released
  67 ;; under the MIT/X11 license
  68 ;; <http://www.gnu.org/licenses/license-list.html#X11License>.
  69 ;;
  70 ;; Modified the `sxml-match1' macro to allow multiple-value returns (upstream
  71 ;; was notified.)
  72
  73 (include-from-path "sxml/sxml-match.ss")
  74
  75 ;;; match.scm ends here