tor-browser

The Tor Browser
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ustr.h (3326B)

      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) UPRV_BLOCK_MACRO_BEGIN {  \
     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 } UPRV_BLOCK_MACRO_END
     39 
     40 #define U_APPEND_CHAR32_ONLY(c,target) UPRV_BLOCK_MACRO_BEGIN { \
     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 } UPRV_BLOCK_MACRO_END
     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