michael@0: /*
michael@0: *******************************************************************************
michael@0: *
michael@0: *   Copyright (C) 1998-2012, International Business Machines
michael@0: *   Corporation and others.  All Rights Reserved.
michael@0: *
michael@0: *******************************************************************************
michael@0: *
michael@0: * File ustr.h
michael@0: *
michael@0: * Modification History:
michael@0: *
michael@0: *   Date        Name        Description
michael@0: *   05/28/99    stephen     Creation.
michael@0: *******************************************************************************
michael@0: */
michael@0: 
michael@0: #ifndef USTR_H
michael@0: #define USTR_H 1
michael@0: 
michael@0: #include "unicode/utypes.h"
michael@0: 
michael@0: #define U_APPEND_CHAR32(c,target,len) {                         \
michael@0:     if (c <= 0xffff)                                            \
michael@0:     {                                                           \
michael@0:         *(target)++ = (UChar) c;                                \
michael@0:         len=1;                                                  \
michael@0:     }                                                           \
michael@0:     else                                                        \
michael@0:     {                                                           \
michael@0:         target[0] = U16_LEAD(c);                                \
michael@0:         target[1] = U16_TRAIL(c);                               \
michael@0:         len=2;                                                  \
michael@0:         target +=2;                                             \
michael@0:     }                                                           \
michael@0: }
michael@0: 
michael@0: #define U_APPEND_CHAR32_ONLY(c,target) {                             \
michael@0:     if (c <= 0xffff)                                            \
michael@0:     {                                                           \
michael@0:         *(target)++ = (UChar) c;                                \
michael@0:     }                                                           \
michael@0:     else                                                        \
michael@0:     {                                                           \
michael@0:         target[0] = U16_LEAD(c);                                \
michael@0:         target[1] = U16_TRAIL(c);                               \
michael@0:         target +=2;                                             \
michael@0:     }                                                           \
michael@0: }
michael@0: 
michael@0: /* A C representation of a string "object" (to avoid realloc all the time) */
michael@0: struct UString {
michael@0:   UChar *fChars;
michael@0:   int32_t fLength;
michael@0:   int32_t fCapacity;
michael@0: };
michael@0: 
michael@0: U_CFUNC void ustr_init(struct UString *s);
michael@0: 
michael@0: U_CFUNC void
michael@0: ustr_initChars(struct UString *s, const char* source, int32_t length, UErrorCode *status);
michael@0: 
michael@0: U_CFUNC void ustr_deinit(struct UString *s);
michael@0: 
michael@0: U_CFUNC void ustr_setlen(struct UString *s, int32_t len, UErrorCode *status);
michael@0: 
michael@0: U_CFUNC void ustr_cpy(struct UString *dst, const struct UString *src,
michael@0:                       UErrorCode *status);
michael@0: 
michael@0: U_CFUNC void ustr_cat(struct UString *dst, const struct UString *src,
michael@0:                       UErrorCode *status);
michael@0: 
michael@0: U_CFUNC void ustr_ncat(struct UString *dst, const struct UString *src,
michael@0:                        int32_t n, UErrorCode *status);
michael@0: 
michael@0: U_CFUNC void ustr_ucat(struct UString *dst, UChar c, UErrorCode *status);
michael@0: U_CFUNC void ustr_u32cat(struct UString *dst, UChar32 c, UErrorCode *status);
michael@0: U_CFUNC void ustr_uscat(struct UString *dst, const UChar* src,int len,UErrorCode *status);
michael@0: #endif