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/******************************************************************************

 *

 * UTF8Cantillation - SWFilter descendant to remove UTF-8 Hebrew cantillation

 *

 */

 

 

#include <stdlib.h>

#include <stdio.h>

#include <utf8cantillation.h>

 

SWORD_NAMESPACE_START

 

const char oName[] = "Hebrew Cantillation";

const char oTip[] = "Toggles Hebrew Cantillation Marks";

 

const SWBuf choices[3] = {"On", "Off", ""};

const StringList oValues(&choices[0], &choices[2]);

 

UTF8Cantillation::UTF8Cantillation() : SWOptionFilter(oName, oTip, &oValues) {

        setOptionValue("Off");

}

 

 

UTF8Cantillation::~UTF8Cantillation(){};

 

 

char UTF8Cantillation::processText(SWBuf &text, const SWKey *key, const SWModule *module) {

        if (!option) {

                //The UTF-8 range 0xD6 0x90 to 0xD6 0xAF and 0xD7 0x84 consist of Hebrew cantillation marks so block those out.

                SWBuf orig = text;

                const unsigned char* from = (unsigned char*)orig.c_str();

                for (text = ""; *from; from++) {

                        if (*from != 0xD6) {

                                if (*from == 0xD7 && *(from + 1) == 0x84) {

                                        from++;

                                }

                                else {

                                        text += *from;

                                }

                        }

                        else if (*(from + 1) < 0x90 || *(from + 1) > 0xAF) {

                                text += *from;

                                from++;

                                text += *from;

                        }

                        else {

                                from++;

                        }

                }

        }

        return 0;

}

 

SWORD_NAMESPACE_END