115 lines
4.2 KiB
Standard ML
115 lines
4.2 KiB
Standard ML
(*****************************************************************************
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* su4sml --- an SML repository for managing (Secure)UML/OCL models
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* http://projects.brucker.ch/su4sml/
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*
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* xmltree_writer.sml --- a module for writing xml trees
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* This file is part of su4sml.
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*
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* Copyright (c) 2005-2007, ETH Zurich, Switzerland
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************)
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(* $Id$ *)
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(* supposed to print a XmlTree to a xml file. *)
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(* Works in principle, but is not UTF-8 clean *)
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structure WriteXmlTree: sig
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val writeFile : string -> XmlTree.Tree -> unit
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val writeStdOut : XmlTree.Tree -> unit
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end =
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struct
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open XmlTree
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val escape = String.translate(fn #"'" => "'"
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| #"<" => "<"
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| #">" => ">"
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| #"\"" => """
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| #"&" => "&"
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| c => str(c))
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val escape2 = String.translate(fn #"<" => "<"
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| #">" => ">"
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| #"\"" => """
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| #"&" => "&"
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| c => str(c))
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fun writeAttribute stream (name,value) =
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TextIO.output (stream, " "^(escape name)^"=\""^(escape2 value)^"\"")
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fun writeEndTag stream name = TextIO.output (stream,"</"^(escape name)^">\n")
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fun writeStartTag stream tree =
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(TextIO.output (stream,"<"^escape (tagname tree));
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List.app (writeAttribute stream) (attributes tree);
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TextIO.output (stream,">\n"))
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fun writeStartEndTag stream tree =
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(TextIO.output (stream,"<"^escape (tagname tree));
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List.app (writeAttribute stream) (attributes tree);
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TextIO.output (stream, " />\n"))
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fun writeIndent stream 0 = ()
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| writeIndent stream n = (TextIO.output (stream, " "); writeIndent stream (n-1))
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fun writeXmlTree indent stream (Text s) =
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(writeIndent stream indent;
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TextIO.output (stream, s^"\n"))
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| writeXmlTree indent stream tree =
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let val elemName = escape (tagname tree)
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in
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writeIndent stream indent;
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if children tree = nil
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then writeStartEndTag stream tree
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else (writeStartTag stream tree;
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List.app (writeXmlTree (indent+1) stream) (children tree);
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writeIndent stream indent;
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writeEndTag stream elemName)
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end
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fun writeFile filename tree =
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let val stream = TextIO.openOut filename
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in
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TextIO.output (stream,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
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writeXmlTree 0 stream tree;
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TextIO.closeOut stream
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end
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fun writeStdOut tree =
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let val stream = TextIO.stdOut
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in
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TextIO.output (stream,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
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writeXmlTree 0 stream tree;
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TextIO.closeOut stream
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end
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end
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