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authordanglassey <danglassey>2002-08-14 09:55:38 +0000
committerdanglassey <danglassey>2002-08-14 09:55:38 +0000
commit6d6973e035aac5ec1676efccd5b8ada70c40b639 (patch)
tree4e92da327f60a083fe610e6b68d016434653b5b4 /include/swmodule.h
parentc9458897ebbb739d8db83c80e06512d8a612f743 (diff)
downloadsword-sf-cvs-6d6973e035aac5ec1676efccd5b8ada70c40b639.tar.gz
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-/******************************************************************************
-* swmodule.h - code for base class 'module'. Module is the basis for all
-* types of modules (e.g. texts, commentaries, maps, lexicons,
-* etc.)
-*
-* $Id: swmodule.h,v 1.49 2002/07/30 10:17:30 scribe Exp $
-*
-* Copyright 1998 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.
-*
-*/
-
-#ifndef SWMODULE_H
-#define SWMODULE_H
-
-#include <swdisp.h>
-#include <swkey.h>
-#include <listkey.h>
-#include <swfilter.h>
-#include <swconfig.h>
-#include <swcacher.h>
-#include <list>
-
-#include <defs.h>
-#include <multimapwdef.h>
-
-using namespace std;
-
-
-#define SWMODULE_OPERATORS \
- operator const char *() { return RenderText(); } \
- operator SWKey &() { return *key; } \
- operator SWKey *() { return key; } \
- SWModule &operator <<(const char *inbuf) { setEntry(inbuf); return *this; } \
- SWModule &operator <<(const SWKey *sourceKey) { linkEntry(sourceKey); return *this; } \
- SWModule &operator -=(int steps) { decrement(steps); return *this; } \
- SWModule &operator +=(int steps) { increment(steps); return *this; } \
- SWModule &operator ++(int) { return *this += 1; } \
- SWModule &operator --(int) { return *this -= 1; } \
- SWModule &operator =(SW_POSITION p) { setPosition(p); return *this; }
-
-
-typedef list < SWFilter * >FilterList;
-
-typedef map < string, string, less < string > > AttributeValue;
-typedef map < string, AttributeValue, less < string > > AttributeList;
-typedef map < string, AttributeList, less < string > > AttributeTypeList;
-
-#define SWTextDirection char
-#define SWTextEncoding char
-#define SWTextMarkup char
-
-enum {DIRECTION_LTR = 0, DIRECTION_RTL, DIRECTION_BIDI};
-enum {FMT_UNKNOWN = 0, FMT_PLAIN, FMT_THML, FMT_GBF, FMT_HTML, FMT_HTMLHREF, FMT_RTF, FMT_OSIS};
-enum {ENC_UNKNOWN = 0, ENC_LATIN1, ENC_UTF8, ENC_SCSU, ENC_UTF16, ENC_RTF, ENC_HTML};
-
-/**
- * The class SWModule is the base class for all modules used in Sword.
- * It provides functions to look up a text passage, to search in the module,
- * to switch on/off the state of optional things like Strong's numbers or footnotes.
- *
- * SWModule has also functions to write to the data files.
- */
-
-class SWDLLEXPORT SWModule : public SWCacher {
-
-protected:
-
- ConfigEntMap ownConfig;
- ConfigEntMap *config;
- mutable AttributeTypeList entryAttributes;
- mutable bool procEntAttr;
-
- char error;
- bool skipConsecutiveLinks;
-
- /** the current key */
- SWKey *key;
-
- ListKey listkey;
- char *modname;
- char *moddesc;
- char *modtype;
- char *modlang;
-
- char direction;
- char markup;
- char encoding;
-
- /** this module's display object */
- SWDisplay *disp;
-
- static SWDisplay rawdisp;
- char *entrybuf;
- unsigned long entrybufallocsize;
-
- /** executed to remove all markup (for searches) */
- FilterList *stripFilters;
-
- /** executed immediately upon fileread */
- FilterList *rawFilters;
-
- /** executed to format for display */
- FilterList *renderFilters;
-
- /** executed to change markup to user prefs */
- FilterList *optionFilters;
-
- /** executed to decode text for display */
- FilterList *encodingFilters;
-
- int entrySize;
-
- public:
- /**
- * This is the default callback function for searching.
- * This function is a placeholder and does nothing.
- * You can define your own function for search progress
- * evaluation, and pass it over to @ref Search.
- */
- static void nullPercent(char percent, void *userData);
- /**
- * Set this bool to false to terminate the search which is executed by this module (@ref #Search).
- * This is useful for threaded applications to terminate the search in another thread.
- */
- bool terminateSearch;
- /** Initializes data for instance of SWModule
- *
- * @param imodname Internal name for module; see also @ref Name
- * @param imoddesc Name to display to user for module;
- * see also @ref Description
- * @param idisp Display object to use for displaying
- * see also @ref Disp
- * @param imodtype Type of Module
- * (All modules will be displayed with
- * others of same type under their modtype heading)
- * see also @ref Type
- */
- SWModule(const char *imodname = 0, const char *imoddesc = 0, SWDisplay * idisp = 0, char *imodtype = 0, SWTextEncoding encoding = ENC_UNKNOWN, SWTextDirection dir = DIRECTION_LTR, SWTextMarkup markup = FMT_UNKNOWN, const char* modlang = 0);
- /** Cleans up instance of SWModule
- */
- virtual ~SWModule();
- /** Gets and clears error status
- *
- * @return error status
- */
- virtual char Error();
- /**
- * @return True if this module is encoded in Unicode, otherwise return false.
- */
- virtual const bool isUnicode() const { return (encoding == (char)ENC_UTF8 || encoding == (char)ENC_SCSU); }
-
- // These methods are useful for modules that come from a standard SWORD install (most do).
- // SWMgr will call setConfig. The user may use getConfig and getConfigEntry (if they
- // are not comfortable with, or don't wish to use stl maps).
- virtual const ConfigEntMap &getConfig() const { return *config; }
- virtual void setConfig(ConfigEntMap *config);
- virtual const char *getConfigEntry(const char *key) const;
-
- /**
- * @return The size of the current entry.
- */
- virtual const int getEntrySize() const { return entrySize; }
- /**
- * Sets a key to this module for position to a
- * particular record or set of records
- *
- * @param ikey key with which to set this module
- * @return error status
- */
- virtual char SetKey(const SWKey *ikey);
- /**
- * Sets the key of this module. Similair to @see SetKey(const SWKey*) .
- * @param ikey The SWKey which should be used as new key.
- * @return Error status
- */
- virtual char SetKey(const SWKey &ikey);
- /** Gets the current module key
- * @return the current key of this module
- */
- virtual SWKey & Key() const { return *key; }
- /** Sets the current key of the module to ikey, and returns
- * the keytext
- *
- * @param ikey new current key for the module
- * @return the keytext of the current module key
- */
- virtual char Key(const SWKey & ikey) { return SetKey(ikey); }
- /** Sets/gets module KeyText
- *
- * @param ikeytext value which to set keytext;
- * [0] - only get
- * @return pointer to keytext
- */
- virtual const char *KeyText(const char *imodtype = 0);
- /** Calls this modules display object and passes itself
- *
- * @return error status
- */
- virtual char Display();
- /** Sets/gets display driver
- *
- * @param idisp value which to set disp;
- * [0] - only get
- * @return pointer to disp
- */
- virtual SWDisplay *Disp(SWDisplay * idisp = 0);
- /** Sets/gets module name
- *
- * @param imodname value which to set modname;
- * [0] - only get
- * @return pointer to modname
- */
- virtual char *Name(const char *imodname = 0);
- /** Sets/gets module description
- *
- * @param imoddesc value which to set moddesc;
- * [0] - only get
- * @return pointer to moddesc
- */
- virtual char *Description(const char *imoddesc = 0);
- /** Sets/gets module type
- *
- * @param imodtype value which to set modtype;
- * [0] - only get
- * @return pointer to modtype
- */
- virtual char *Type(const char *imodtype = 0);
- /** Sets/gets module direction
- *
- * @param newdir value which to set direction;
- * [-1] - only get
- * @return char direction
- */
- virtual char Direction(signed char newdir = -1);
- /** Sets/gets module encoding
- *
- * @param newdir value which to set encoding;
- * [-1] - only get
- * @return char encoding
- */
- virtual char Encoding(signed char enc = -1);
- /** Sets/gets module markup
- *
- * @param newdir value which to set markup;
- * [-1] - only get
- * @return char markup
- */
- virtual char Markup(signed char enc = -1);
- /** Sets/gets module language
- *
- * @param imodlang value which to set modlang;
- * [0] - only get
- * @return pointer to modlang
- */
- virtual char *Lang(const char *imodlang = 0);
-
- // search methods
-
- /** Searches a module for a string
- *
- * @param istr string for which to search
- * @param searchType type of search to perform
- * <=0 ->regex; 1->phrase; 2->multiword;
- * @param flags options flags for search
- * @param justCheckIfSupported if set, don't search,
- * only tell if this function supports requested search.
- *
- * @return listkey set to verses that contain istr
- */
- virtual ListKey & Search(const char *istr, int searchType = 0, int flags = 0,
- SWKey * scope = 0,
- bool * justCheckIfSupported = 0,
- void (*percent) (char, void *) = &nullPercent,
- void *percentUserData = 0);
- /**
- *
- */
- virtual signed char createSearchFramework() { return 0; } // special search framework
- /**
- *
- */
- virtual bool hasSearchFramework() { return false; } // special search framework
- /** Check if the search is optimally supported (e.g. if index files are presnt and working)
- * This function checks whether the search framework may work in the best way.
- * @return True if the the search is optimally supported, false if it's not working in the best way.
- */
- virtual bool isSearchOptimallySupported(const char *istr, int searchType,
- int flags, SWKey * scope) {
- bool retVal = false;
- Search(istr, searchType, flags, scope, &retVal);
- return retVal;
- }
- /** Allocates a key of specific type for module
- * The different reimplementatiosn of SWModule (e.g. SWText) support SWKey implementations, which support special.
- * This functions returns a SWKey object which works with the current implementation of SWModule. For example for the SWText class it returns a VerseKey object.
- * @see VerseKey, ListKey, SWText, SWLD, SWCom
- * @return pointer to allocated key
- */
- virtual SWKey *CreateKey();
- /** This function is reimplemented by the different kinds
- * of module objects
- * @return the raw module text of the current entry
- */
-#ifndef SWIG
- virtual char *getRawEntry() = 0;
-#else
- virtual char *getRawEntry() {};
-#endif
-
-
- // write interface ----------------------------
- /** Is the module writable? :)
- * @return yes or no
- */
- virtual bool isWritable() { return false; }
- /** Creates a new module
- * @param path The first parameter is path of the new module
- * @return error
- */
- static signed char createModule(const char *) { return -1; }
- /** Modify the current module entry text
- * - only if module @ref isWritable
- * @return *this
- */
- virtual void setEntry(const char *inbuf, long len = -1) { }
- /** Link the current module entry to another module entry
- * - only if module @ref isWritable
- */
- virtual void linkEntry(const SWKey *sourceKey) { }
- /** Delete current module entry - only if module @ref isWritable
- *
- */
- virtual void deleteEntry() {}
-
- // end write interface ------------------------
-
- /** Decrements module key a number of entries
- *
- * @param decrement Number of entries to jump backward
- * @return *this
- */
- virtual void decrement(int steps = 1);
- /** Increments module key a number of entries
- *
- * @param increment Number of entries to jump forward
- * @return *this
- */
- virtual void increment(int steps = 1);
- /** Positions this modules to an entry
- *
- * @param p position (e.g. TOP, BOTTOM)
- * @return *this
- */
- virtual void setPosition(SW_POSITION p);
- /** Adds a RenderFilter to this module's @see renderfilters queue
- * @param newfilter the filter to add
- * @return *this
- */
- virtual SWModule & AddRenderFilter(SWFilter * newfilter) {
- renderFilters->push_back (newfilter);
- return *this;
- }
- /** Removes a RenderFilter from this module's @see renderfilters queue
- * @param oldfilter the filter to remove
- * @return *this
- */
- virtual SWModule & RemoveRenderFilter(SWFilter * oldfilter) {
- renderFilters->remove (oldfilter);
- return *this;
- }
- /** Replaces a RenderFilter in this module's @see renderfilters queue
- * @param oldfilter the filter to remove
- * @param newfilter the filter to add in its place
- * @return *this
- */
- virtual SWModule & ReplaceRenderFilter(SWFilter * oldfilter, SWFilter * newfilter) {
- FilterList::iterator iter;
- for (iter = renderFilters->begin(); iter != renderFilters->end(); iter++) {
- if (*iter == oldfilter)
- *iter = newfilter;
- }
- return *this;
- }
- /** RenderFilter a text buffer
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void renderFilter(char *buf, long size, SWKey *key) {
- filterBuffer(renderFilters, buf, size, key);
- }
- /** Adds an EncodingFilter to this module's @see encodingfilters queue
- * @param newfilter the filter to add
- * @return *this
- */
- virtual SWModule & AddEncodingFilter(SWFilter * newfilter) {
- encodingFilters->push_back (newfilter);
- return *this;
- }
- /** Removes an EncodingFilter from this module's @see encodingfilters queue
- * @param oldfilter the filter to remove
- * @return *this
- */
- virtual SWModule & RemoveEncodingFilter(SWFilter * oldfilter) {
- encodingFilters->remove (oldfilter);
- return *this;
- }
- /** Replaces an EncodingFilter in this module's @see encodingfilters queue
- * @param oldfilter the filter to remove
- * @param newfilter the filter to add in its place
- * @return *this
- */
- virtual SWModule & ReplaceEncodingFilter(SWFilter * oldfilter, SWFilter * newfilter) {
- FilterList::iterator iter;
- for (iter = encodingFilters->begin(); iter != encodingFilters->end(); iter++) {
- if (*iter == oldfilter)
- *iter = newfilter;
- }
- return *this;
- }
- /** encodingFilter a text buffer
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void encodingFilter(char *buf, long size, SWKey *key) {
- filterBuffer(encodingFilters, buf, size, key);
- }
- /** Adds a StripFilter to this module's @ref stripfilters queue
- * @param newfilter the filter to add
- * @return *this
- */
- virtual SWModule & AddStripFilter(SWFilter * newfilter) {
- stripFilters->push_back (newfilter);
- return *this;
- }
- /** StripFilter a text buffer
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void stripFilter(char *buf, long size, SWKey *key) {
- filterBuffer(stripFilters, buf, size, key);
- }
- /** Adds a RawFilter to this module's @ref rawfilters queue
- * @param newfilter the filter to add
- * @return *this
- */
- virtual SWModule & AddRawFilter(SWFilter * newfilter) {
- rawFilters->push_back (newfilter);
- return *this;
- }
- /** FilterBuffer a text buffer
- * @param filters the FilterList of filters to iterate
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void filterBuffer(FilterList *filters, char *buf, long size, SWKey *key) {
- FilterList::iterator it;
- for (it = filters->begin(); it != filters->end(); it++) {
- (*it)->ProcessText(buf, size, key, this);
- }
- }
- /** RawFilter a text buffer
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void rawFilter(char *buf, long size, SWKey *key) {
- buf[size] = 0;
- filterBuffer(rawFilters, buf, size, key);
- }
- /** Adds an OptionFilter to this module's @ref optionfilters queue
- * @param newfilter the filter to add
- * @return *this
- */
- virtual SWModule & AddOptionFilter(SWFilter * newfilter) {
- optionFilters->push_back(newfilter);
- return *this;
- }
- /** OptionFilter a text buffer
- * @param buf the buffer to filter
- * @param size the allocated size of the buffer
- * @param key key location from where this buffer was extracted
- * @return *this
- */
- virtual void optionFilter(char *buf, long size, SWKey *key) {
- filterBuffer(optionFilters, buf, size, key);
- }
- /** calls all StripFilters on buffer or current text
- *
- * @param buf buf to massage instead of current module position;
- * if buf is NULL, the current text will be used
- * @param len max len of buf OR current text -- will be applied anyway
- * @return this module's text at specified key location massaged by Strip filters
- */
- virtual const char *StripText(char *buf = 0, int len = -1);
- /** calls all RenderFilters on buffer or current text
- *
- * @param buf buffer to Render instead of current module position;
- * if buf is NULL, the current text will be used
- * @param len max len of buf OR current text -- will be applied anyway
- * @return this module's text at specified key location massaged by Render filters
- */
- virtual const char *RenderText(char *buf = 0, int len = -1, bool render = true);
- /** calls all StripFilters on current text
- *
- * @param tmpKey key to use to grab text
- * @return this module's text at specified key location massaged by Strip filters
- */
- virtual const char *StripText(SWKey * tmpKey);
- /** calls all RenderFilters on current text
- *
- * @param tmpKey key to use to grab text
- * @return this module's text at specified key location massaged by Render filters
- */
- virtual const char *RenderText(SWKey * tmpKey);
-
- /**
- *
- * option to specify behaviour when iterating over consecutive entried linked
- * to same text
- * @param val = true means only include entry once in iteration
- */
- virtual void setSkipConsecutiveLinks(bool val) { skipConsecutiveLinks = val; }
- virtual bool getSkipConsecutiveLinks() { return skipConsecutiveLinks; }
- virtual AttributeTypeList &getEntryAttributes() const { return entryAttributes; }
- virtual void processEntryAttributes(bool val) const { procEntAttr = val; }
- virtual bool isProcessEntryAttributes() const { return procEntAttr; }
-
-
-
- // OPERATORS -----------------------------------------------------------------
-
- SWMODULE_OPERATORS
-
-};
-#endif