icuSources/tools/genrb/ustr.h

   1 /*
   2 *******************************************************************************
   3 *
   4 *   Copyright (C) 1998-2012, International Business Machines
   5 *   Corporation and others.  All Rights Reserved.
   6 *
   7 *******************************************************************************
   8 *
   9 * File ustr.h
  10 *
  11 * Modification History:
  12 *
  13 *   Date        Name        Description
  14 *   05/28/99    stephen     Creation.
  15 *******************************************************************************
  16 */
  17
  18 #ifndef USTR_H
  19 #define USTR_H 1
  20
  21 #include "unicode/utypes.h"
  22
  23 #define U_APPEND_CHAR32(c,target,len) {                         \
  24     if (c <= 0xffff)                                            \
  25     {                                                           \
  26         *(target)++ = (UChar) c;                                \
  27         len=1;                                                  \
  28     }                                                           \
  29     else                                                        \
  30     {                                                           \
  31         target[0] = U16_LEAD(c);                                \
  32         target[1] = U16_TRAIL(c);                               \
  33         len=2;                                                  \
  34         target +=2;                                             \
  35     }                                                           \
  36 }
  37
  38 #define U_APPEND_CHAR32_ONLY(c,target) {                             \
  39     if (c <= 0xffff)                                            \
  40     {                                                           \
  41         *(target)++ = (UChar) c;                                \
  42     }                                                           \
  43     else                                                        \
  44     {                                                           \
  45         target[0] = U16_LEAD(c);                                \
  46         target[1] = U16_TRAIL(c);                               \
  47         target +=2;                                             \
  48     }                                                           \
  49 }
  50
  51 /* A C representation of a string "object" (to avoid realloc all the time) */
  52 struct UString {
  53   UChar *fChars;
  54   int32_t fLength;
  55   int32_t fCapacity;
  56 };
  57
  58 U_CFUNC void ustr_init(struct UString *s);
  59
  60 U_CFUNC void
  61 ustr_initChars(struct UString *s, const char* source, int32_t length, UErrorCode *status);
  62
  63 U_CFUNC void ustr_deinit(struct UString *s);
  64
  65 U_CFUNC void ustr_setlen(struct UString *s, int32_t len, UErrorCode *status);
  66
  67 U_CFUNC void ustr_cpy(struct UString *dst, const struct UString *src,
  68                       UErrorCode *status);
  69
  70 U_CFUNC void ustr_cat(struct UString *dst, const struct UString *src,
  71                       UErrorCode *status);
  72
  73 U_CFUNC void ustr_ncat(struct UString *dst, const struct UString *src,
  74                        int32_t n, UErrorCode *status);
  75
  76 U_CFUNC void ustr_ucat(struct UString *dst, UChar c, UErrorCode *status);
  77 U_CFUNC void ustr_u32cat(struct UString *dst, UChar32 c, UErrorCode *status);
  78 U_CFUNC void ustr_uscat(struct UString *dst, const UChar* src,int len,UErrorCode *status);
  79 #endif