icuSources/tools/genrb/ustr.h

   1 // © 2016 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3 /*
   4 *******************************************************************************
   5 *
   6 *   Copyright (C) 1998-2012, International Business Machines
   7 *   Corporation and others.  All Rights Reserved.
   8 *
   9 *******************************************************************************
  10 *
  11 * File ustr.h
  12 *
  13 * Modification History:
  14 *
  15 *   Date        Name        Description
  16 *   05/28/99    stephen     Creation.
  17 *******************************************************************************
  18 */
  19
  20 #ifndef USTR_H
  21 #define USTR_H 1
  22
  23 #include "unicode/utypes.h"
  24
  25 #define U_APPEND_CHAR32(c,target,len) {                         \
  26     if (c <= 0xffff)                                            \
  27     {                                                           \
  28         *(target)++ = (UChar) c;                                \
  29         len=1;                                                  \
  30     }                                                           \
  31     else                                                        \
  32     {                                                           \
  33         target[0] = U16_LEAD(c);                                \
  34         target[1] = U16_TRAIL(c);                               \
  35         len=2;                                                  \
  36         target +=2;                                             \
  37     }                                                           \
  38 }
  39
  40 #define U_APPEND_CHAR32_ONLY(c,target) {                             \
  41     if (c <= 0xffff)                                            \
  42     {                                                           \
  43         *(target)++ = (UChar) c;                                \
  44     }                                                           \
  45     else                                                        \
  46     {                                                           \
  47         target[0] = U16_LEAD(c);                                \
  48         target[1] = U16_TRAIL(c);                               \
  49         target +=2;                                             \
  50     }                                                           \
  51 }
  52
  53 /* A C representation of a string "object" (to avoid realloc all the time) */
  54 struct UString {
  55   UChar *fChars;
  56   int32_t fLength;
  57   int32_t fCapacity;
  58 };
  59
  60 U_CFUNC void ustr_init(struct UString *s);
  61
  62 U_CFUNC void
  63 ustr_initChars(struct UString *s, const char* source, int32_t length, UErrorCode *status);
  64
  65 U_CFUNC void ustr_deinit(struct UString *s);
  66
  67 U_CFUNC void ustr_setlen(struct UString *s, int32_t len, UErrorCode *status);
  68
  69 U_CFUNC void ustr_cpy(struct UString *dst, const struct UString *src,
  70                       UErrorCode *status);
  71
  72 U_CFUNC void ustr_cat(struct UString *dst, const struct UString *src,
  73                       UErrorCode *status);
  74
  75 U_CFUNC void ustr_ncat(struct UString *dst, const struct UString *src,
  76                        int32_t n, UErrorCode *status);
  77
  78 U_CFUNC void ustr_ucat(struct UString *dst, UChar c, UErrorCode *status);
  79 U_CFUNC void ustr_u32cat(struct UString *dst, UChar32 c, UErrorCode *status);
  80 U_CFUNC void ustr_uscat(struct UString *dst, const UChar* src,int len,UErrorCode *status);
  81 #endif