icuSources/samples/msgfmt/util.cpp

   1 /**********************************************************************
   2  * © 2016 and later: Unicode, Inc. and others.
   3  * License & terms of use: http://www.unicode.org/copyright.html#License
   4  ***********************************************************************
   5  ***********************************************************************
   6  * COPYRIGHT:
   7  * Copyright (c) 1999-2010, International Business Machines Corporation and
   8  * others. All Rights Reserved.
   9  ***********************************************************************/
  10
  11 #include "unicode/unistr.h"
  12 #include <stdio.h>
  13 #include <stdlib.h>
  14
  15 // Verify that a UErrorCode is successful; exit(1) if not
  16 void check(UErrorCode& status, const char* msg) {
  17     if (U_FAILURE(status)) {
  18         printf("ERROR: %s (%s)\n", u_errorName(status), msg);
  19         exit(1);
  20     }
  21     // printf("Ok: %s\n", msg);
  22 }
  23
  24 // Append a hex string to the target
  25 static UnicodeString& appendHex(uint32_t number,
  26                          int8_t digits,
  27                          UnicodeString& target) {
  28     static const UnicodeString DIGIT_STRING("0123456789ABCDEF");
  29     while (digits > 0) {
  30         target += DIGIT_STRING[(number >> ((--digits) * 4)) & 0xF];
  31     }
  32     return target;
  33 }
  34
  35 // Replace nonprintable characters with unicode escapes
  36 UnicodeString escape(const UnicodeString &source) {
  37     int32_t i;
  38     UnicodeString target;
  39     target += "\"";
  40     for (i=0; i<source.length(); ++i) {
  41         UChar ch = source[i];
  42         if (ch < 0x09 || (ch > 0x0A && ch < 0x20) || ch > 0x7E) {
  43             target += "\\u";
  44             appendHex(ch, 4, target);
  45         } else {
  46             target += ch;
  47         }
  48     }
  49     target += "\"";
  50     return target;
  51 }
  52
  53 // Print the given string to stdout
  54 void uprintf(const UnicodeString &str) {
  55     char *buf = 0;
  56     int32_t len = str.length();
  57     // int32_t bufLen = str.extract(0, len, buf); // Preflight
  58     /* Preflighting seems to be broken now, so assume 1-1 conversion,
  59        plus some slop. */
  60     int32_t bufLen = len + 16;
  61         int32_t actualLen;
  62     buf = new char[bufLen + 1];
  63     actualLen = str.extract(0, len, buf/*, bufLen*/); // Default codepage conversion
  64     buf[actualLen] = 0;
  65     printf("%s", buf);
  66     delete [] buf;
  67 }