teiplain.cpp

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/***************************************************************************
 *
 *  teiplain.cpp -  TEI to Plaintext filter
 *
 * $Id: teiplain.cpp 3696 2020-02-03 19:38:46Z refdoc $
 *
 * Copyright 2006-2013 CrossWire Bible Society (http://www.crosswire.org)
 *  CrossWire Bible Society
 *  P. O. Box 2528
 *  Tempe, AZ  85280-2528
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation version 2.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 */

#include <stdlib.h>
#include <teiplain.h>
#include <ctype.h>

SWORD_NAMESPACE_START

TEIPlain::TEIPlain() {
    setTokenStart("<");
    setTokenEnd(">");

    setEscapeStart("&");
    setEscapeEnd(";");

    setEscapeStringCaseSensitive(true);

    addEscapeStringSubstitute("amp", "&");
    addEscapeStringSubstitute("apos", "'");
    addEscapeStringSubstitute("lt", "<");
    addEscapeStringSubstitute("gt", ">");
    addEscapeStringSubstitute("quot", "\"");

    setTokenCaseSensitive(true);
}


bool TEIPlain::handleToken(SWBuf &buf, const char *token, BasicFilterUserData *userData) {
  // manually process if it wasn't a simple substitution
    if (!substituteToken(buf, token)) {
        //MyUserData *u = (MyUserData *)userData;
        XMLTag tag(token);

        // <p> paragraph tag
        if (!strcmp(tag.getName(), "p")) {
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {    // non-empty start tag
                buf += "\n";
            }
            else if (tag.isEndTag()) {  // end tag
                buf += "\n";
                userData->supressAdjacentWhitespace = true;
            }
            else {                  // empty paragraph break marker
                buf += "\n\n";
                userData->supressAdjacentWhitespace = true;
            }
        }

        // <entryFree>
        else if (!strcmp(tag.getName(), "entryFree")) {
            SWBuf n = tag.getAttribute("n");
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {
                    if (n != "") {
                    buf += n;
                    buf += ". ";
                }
            }
        }

        // <sense>
        else if (!strcmp(tag.getName(), "sense")) {
            SWBuf n = tag.getAttribute("n");
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {
                    if (n != "") {
                    buf += n;
                    buf += ". ";
                }
            }
            else if (tag.isEndTag()) {
                            buf += "\n";
            }
        }

        // <div>
        else if (!strcmp(tag.getName(), "div")) {

            if ((!tag.isEndTag()) && (!tag.isEmpty())) {
                buf.append("\n\n\n");
            }
            else if (tag.isEndTag()) {
            }
        }

        // <etym>
        else if (!strcmp(tag.getName(), "etym")) {
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {
                buf += "[";
            }
            else if (tag.isEndTag()) {
                    buf += "]";
            }
        }

        // <list> <item>  This implementation does not distinguish between forms of lists
        // it would be nice if a numbered list could be added
        
        else if (!strcmp(tag.getName(), "list")) {
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {

                buf += "\n";
            }
            else if (tag.isEndTag()) {
                buf += "\n";
            }
        }
        else if (!strcmp(tag.getName(), "item")) {
            if ((!tag.isEndTag()) && (!tag.isEmpty())) {
                buf += "\t* ";
            }
            else if (tag.isEndTag()) {
                buf += "\n";
            }
        }
        else {
            return false;  // we still didn't handle token
        }
    }
    return true;
}


SWORD_NAMESPACE_END