michael@0: /*
michael@0: ******************************************************************************
michael@0: *   Copyright (C) 1997-2012, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: ******************************************************************************
michael@0: *   file name:  nfrlist.h
michael@0: *   encoding:   US-ASCII
michael@0: *   tab size:   8 (not used)
michael@0: *   indentation:4
michael@0: *
michael@0: * Modification history
michael@0: * Date        Name      Comments
michael@0: * 10/11/2001  Doug      Ported from ICU4J
michael@0: */
michael@0: 
michael@0: #ifndef NFRLIST_H
michael@0: #define NFRLIST_H
michael@0: 
michael@0: #include "unicode/rbnf.h"
michael@0: 
michael@0: #if U_HAVE_RBNF
michael@0: 
michael@0: #include "unicode/uobject.h"
michael@0: #include "nfrule.h"
michael@0: 
michael@0: #include "cmemory.h"
michael@0: 
michael@0: U_NAMESPACE_BEGIN
michael@0: 
michael@0: // unsafe class for internal use only.  assume memory allocations succeed, indexes are valid.
michael@0: // should be a template, but we can't use them
michael@0: 
michael@0: class NFRuleList : public UMemory {
michael@0: protected:
michael@0:     NFRule** fStuff;
michael@0:     uint32_t fCount;
michael@0:     uint32_t fCapacity;
michael@0: public:
michael@0:     NFRuleList(uint32_t capacity = 10) 
michael@0:         : fStuff(capacity ? (NFRule**)uprv_malloc(capacity * sizeof(NFRule*)) : NULL)
michael@0:         , fCount(0)
michael@0:         , fCapacity(capacity) {}
michael@0:     ~NFRuleList() {
michael@0:         if (fStuff) {
michael@0:             for(uint32_t i = 0; i < fCount; ++i) {
michael@0:                 delete fStuff[i];
michael@0:             }
michael@0:             uprv_free(fStuff);
michael@0:         }
michael@0:     }
michael@0:     NFRule* operator[](uint32_t index) const { return fStuff != NULL ? fStuff[index] : NULL; }
michael@0:     NFRule* remove(uint32_t index) {
michael@0:     	if (fStuff == NULL) {
michael@0:     		return NULL;
michael@0:     	}
michael@0:         NFRule* result = fStuff[index];
michael@0:         fCount -= 1;
michael@0:         for (uint32_t i = index; i < fCount; ++i) { // assumes small arrays
michael@0:             fStuff[i] = fStuff[i+1];
michael@0:         }
michael@0:         return result;
michael@0:     }
michael@0:     void add(NFRule* thing) {
michael@0:         if (fCount == fCapacity) {
michael@0:             fCapacity += 10;
michael@0:             fStuff = (NFRule**)uprv_realloc(fStuff, fCapacity * sizeof(NFRule*)); // assume success
michael@0:         }
michael@0:         if (fStuff != NULL) {
michael@0:         	fStuff[fCount++] = thing;
michael@0:         } else {
michael@0:         	fCapacity = 0;
michael@0:         	fCount = 0;
michael@0:         }
michael@0:     }
michael@0:     uint32_t size() const { return fCount; }
michael@0:     NFRule* last() const { return (fCount > 0 && fStuff != NULL) ? fStuff[fCount-1] : NULL; }
michael@0:     NFRule** release() {
michael@0:         add(NULL); // ensure null termination
michael@0:         NFRule** result = fStuff;
michael@0:         fStuff = NULL;
michael@0:         fCount = 0;
michael@0:         fCapacity = 0;
michael@0:         return result;
michael@0:     }
michael@0:     void deleteAll() {
michael@0:         NFRule** tmp = NULL;
michael@0:         int32_t size = fCount;
michael@0:         if (size > 0) {
michael@0:             tmp = release();
michael@0:             for (int32_t i = 0; i < size; i++) {
michael@0:                 delete tmp[i];
michael@0:             }
michael@0:             if (tmp) {
michael@0:                 uprv_free(tmp);
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     NFRuleList(const NFRuleList &other); // forbid copying of this class
michael@0:     NFRuleList &operator=(const NFRuleList &other); // forbid copying of this class
michael@0: };
michael@0: 
michael@0: U_NAMESPACE_END
michael@0: 
michael@0: /* U_HAVE_RBNF */
michael@0: #endif
michael@0: 
michael@0: // NFRLIST_H
michael@0: #endif