icuSources/samples/datefmt/util.cpp

   1 /********************************************************************
   2  * COPYRIGHT:
   3  * Copyright (c) 1999-2002,2009, International Business Machines Corporation and
   4  * others. All Rights Reserved.
   5  ********************************************************************/
   6
   7 #include "unicode/unistr.h"
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10
  11 // Verify that a UErrorCode is successful; exit(1) if not
  12 void check(UErrorCode& status, const char* msg) {
  13     if (U_FAILURE(status)) {
  14         printf("ERROR: %s (%s)\n", u_errorName(status), msg);
  15         exit(1);
  16     }
  17     // printf("Ok: %s\n", msg);
  18 }
  19
  20 // Append a hex string to the target
  21 static UnicodeString& appendHex(uint32_t number,
  22                          int8_t digits,
  23                          UnicodeString& target) {
  24     static const UnicodeString DIGIT_STRING("0123456789ABCDEF");
  25     while (digits > 0) {
  26         target += DIGIT_STRING[(number >> ((--digits) * 4)) & 0xF];
  27     }
  28     return target;
  29 }
  30
  31 // Replace nonprintable characters with unicode escapes
  32 UnicodeString escape(const UnicodeString &source) {
  33     int32_t i;
  34     UnicodeString target;
  35     target += "\"";
  36     for (i=0; i<source.length(); ++i) {
  37         UChar ch = source[i];
  38         if (ch < 0x09 || (ch > 0x0A && ch < 0x20) || ch > 0x7E) {
  39             target += "\\u";
  40             appendHex(ch, 4, target);
  41         } else {
  42             target += ch;
  43         }
  44     }
  45     target += "\"";
  46     return target;
  47 }
  48
  49 // Print the given string to stdout
  50 void uprintf(const UnicodeString &str) {
  51     char *buf = 0;
  52     int32_t len = str.length();
  53     // int32_t bufLen = str.extract(0, len, buf); // Preflight
  54     /* Preflighting seems to be broken now, so assume 1-1 conversion,
  55        plus some slop. */
  56     int32_t bufLen = len + 16;
  57         int32_t actualLen;
  58     buf = new char[bufLen + 1];
  59     actualLen = str.extract(0, len, buf/*, bufLen*/); // Default codepage conversion
  60     buf[actualLen] = 0;
  61     printf("%s", buf);
  62     delete[] buf;
  63 }