The Tor Browser: intl/icu/source/tools/tzcode/icuzdump.cpp@fc2d59ddac77 (annotated)

intl/icu/source/tools/tzcode/icuzdump.cpp@fc2d59ddac77 (annotated)

intl/icu/source/tools/tzcode/icuzdump.cpp

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
 *******************************************************************************
 *
 *   Copyright (C) 2007, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
 *   file name:  icuzdump.cpp
 *   encoding:   US-ASCII
 *   tab size:   8 (not used)
 *   indentation:4
 *
 *   created on: 2007-04-02
 *   created by: Yoshito Umaoka
 *
 *   This tool write out timezone transitions for ICU timezone.  This tool
 *   is used as a part of tzdata update process to check if ICU timezone
 *   code works as well as the corresponding Olson stock localtime/zdump.
 */
 #include <cstdlib>
 #include <cstring>
 #include <fstream>
 #include <sstream>
 #include <iostream>
 #include "unicode/utypes.h"
 #include "unicode/ustring.h"
 #include "unicode/timezone.h"
 #include "unicode/simpletz.h"
 #include "unicode/smpdtfmt.h"
 #include "unicode/decimfmt.h"
 #include "unicode/gregocal.h"
 #include "unicode/ustream.h"
 #include "unicode/putil.h"
 #include "uoptions.h"
 using namespace std;
 class DumpFormatter {
 public:
     DumpFormatter() {
         UErrorCode status = U_ZERO_ERROR;
         stz = new SimpleTimeZone(0, "");
         sdf = new SimpleDateFormat((UnicodeString)"yyyy-MM-dd EEE HH:mm:ss", Locale::getEnglish(), status);
         DecimalFormatSymbols *symbols = new DecimalFormatSymbols(Locale::getEnglish(), status);
         decf = new DecimalFormat("00", symbols, status);
     }
     ~DumpFormatter() {
     }
     UnicodeString& format(UDate time, int32_t offset, UBool isDst, UnicodeString& appendTo) {
         stz->setRawOffset(offset);
         sdf->setTimeZone(*stz);
         UnicodeString str = sdf->format(time, appendTo);
         if (offset < 0) {
             appendTo += "-";
             offset = -offset;
         } else {
             appendTo += "+";
         }
         int32_t hour, min, sec;
         offset /= 1000;
         sec = offset % 60;
         offset = (offset - sec) / 60;
         min = offset % 60;
         hour = offset / 60;
         decf->format(hour, appendTo);
         decf->format(min, appendTo);
         decf->format(sec, appendTo);
         appendTo += "[DST=";
         if (isDst) {
             appendTo += "1";
         } else {
             appendTo += "0";
         }
         appendTo += "]";
         return appendTo;
     }
 private:
     SimpleTimeZone*     stz;
     SimpleDateFormat*   sdf;
     DecimalFormat*      decf;
 };
 class ICUZDump {
 public:
     ICUZDump() {
         formatter = new DumpFormatter();
         loyear = 1902;
         hiyear = 2050;
         tick = 1000;
         linesep = NULL;
     }
     ~ICUZDump() {
     }
     void setLowYear(int32_t lo) {
         loyear = lo;
     }
     void setHighYear(int32_t hi) {
         hiyear = hi;
     }
     void setTick(int32_t t) {
         tick = t;
     }
     void setTimeZone(TimeZone* tz) {
         timezone = tz;
     }
     void setDumpFormatter(DumpFormatter* fmt) {
         formatter = fmt;
     }
     void setLineSeparator(const char* sep) {
         linesep = sep;
     }
     void dump(ostream& out) {
         UErrorCode status = U_ZERO_ERROR;
         UDate SEARCH_INCREMENT = 12 * 60 * 60 * 1000; // half day
         UDate t, cutlo, cuthi;
         int32_t rawOffset, dstOffset;
         UnicodeString str;
         getCutOverTimes(cutlo, cuthi);
         t = cutlo;
         timezone->getOffset(t, FALSE, rawOffset, dstOffset, status);
         while (t < cuthi) {
             int32_t newRawOffset, newDstOffset;
             UDate newt = t + SEARCH_INCREMENT;
             timezone->getOffset(newt, FALSE, newRawOffset, newDstOffset, status);
             UBool bSameOffset = (rawOffset + dstOffset) == (newRawOffset + newDstOffset);
             UBool bSameDst = ((dstOffset != 0) && (newDstOffset != 0)) || ((dstOffset == 0) && (newDstOffset == 0));
             if (!bSameOffset || !bSameDst) {
                 // find the boundary
                 UDate lot = t;
                 UDate hit = newt;
                 while (true) {
                     int32_t diff = (int32_t)(hit - lot);
                     if (diff <= tick) {
                         break;
                     }
                     UDate medt = lot + ((diff / 2) / tick) * tick;
                     int32_t medRawOffset, medDstOffset;
                     timezone->getOffset(medt, FALSE, medRawOffset, medDstOffset, status);
                     bSameOffset = (rawOffset + dstOffset) == (medRawOffset + medDstOffset);
                     bSameDst = ((dstOffset != 0) && (medDstOffset != 0)) || ((dstOffset == 0) && (medDstOffset == 0));
                     if (!bSameOffset || !bSameDst) {
                         hit = medt;
                     } else {
                         lot = medt;
                     }
                 }
                 // write out the boundary
                 str.remove();
                 formatter->format(lot, rawOffset + dstOffset, (dstOffset == 0 ? FALSE : TRUE), str);
                 out << str << " > ";
                 str.remove();
                 formatter->format(hit, newRawOffset + newDstOffset, (newDstOffset == 0 ? FALSE : TRUE), str);
                 out << str;
                 if (linesep != NULL) {
                     out << linesep;
                 } else {
                     out << endl;
                 }
                 rawOffset = newRawOffset;
                 dstOffset = newDstOffset;
             }
             t = newt;
         }
     }
 private:
     void getCutOverTimes(UDate& lo, UDate& hi) {
         UErrorCode status = U_ZERO_ERROR;
         GregorianCalendar* gcal = new GregorianCalendar(timezone, Locale::getEnglish(), status);
         gcal->clear();
         gcal->set(loyear, 0, 1, 0, 0, 0);
         lo = gcal->getTime(status);
         gcal->set(hiyear, 0, 1, 0, 0, 0);
         hi = gcal->getTime(status);
     }
     void dumpZone(ostream& out, const char* linesep, UnicodeString tzid, int32_t low, int32_t high) {
     }
     TimeZone*   timezone;
     int32_t     loyear;
     int32_t     hiyear;
     int32_t     tick;
     DumpFormatter*  formatter;
     const char*  linesep;
 };
 class ZoneIterator {
 public:
     ZoneIterator(UBool bAll = FALSE) {
         if (bAll) {
             zenum = TimeZone::createEnumeration();
         }
         else {
             zenum = NULL;
             zids = NULL;
             idx = 0;
             numids = 1;
         }
     }
     ZoneIterator(const char** ids, int32_t num) {
         zenum = NULL;
         zids = ids;
         idx = 0;
         numids = num;
     }
     ~ZoneIterator() {
         if (zenum != NULL) {
             delete zenum;
         }
     }
     TimeZone* next() {
         TimeZone* tz = NULL;
         if (zenum != NULL) {
             UErrorCode status = U_ZERO_ERROR;
             const UnicodeString* zid = zenum->snext(status);
             if (zid != NULL) {
                 tz = TimeZone::createTimeZone(*zid);
             }
         }
         else {
             if (idx < numids) {
                 if (zids != NULL) {
                     tz = TimeZone::createTimeZone((const UnicodeString&)zids[idx]);
                 }
                 else {
                     tz = TimeZone::createDefault();
                 }
                 idx++;
             }
         }
         return tz;
     }
 private:
     const char** zids;
     StringEnumeration* zenum;
     int32_t idx;
     int32_t numids;
 };
 enum {
   kOptHelpH = 0,
   kOptHelpQuestionMark,
   kOptAllZones,
   kOptCutover,
   kOptDestDir,
   kOptLineSep
 };
 static UOption options[]={
     UOPTION_HELP_H,
     UOPTION_HELP_QUESTION_MARK,
     UOPTION_DEF("allzones", 'a', UOPT_NO_ARG),
     UOPTION_DEF("cutover", 'c', UOPT_REQUIRES_ARG),
     UOPTION_DEF("destdir", 'd', UOPT_REQUIRES_ARG),
     UOPTION_DEF("linesep", 'l', UOPT_REQUIRES_ARG)
 };
 extern int
 main(int argc, char *argv[]) {
     int32_t low = 1902;
     int32_t high = 2038;
     UBool bAll = FALSE;
     const char *dir = NULL;
     const char *linesep = NULL;
     U_MAIN_INIT_ARGS(argc, argv);
     argc = u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
     if (argc < 0) {
         cerr << "Illegal command line argument(s)" << endl << endl;
     }
     if (argc < 0 || options[kOptHelpH].doesOccur || options[kOptHelpQuestionMark].doesOccur) {
         cerr
             << "Usage: icuzdump [-options] [zoneid1 zoneid2 ...]" << endl
             << endl
             << "\tDump all offset transitions for the specified zones." << endl
             << endl
             << "Options:" << endl
             << "\t-a       : Dump all available zones." << endl
             << "\t-d <dir> : When specified, write transitions in a file under" << endl
             << "\t           the directory for each zone." << endl
             << "\t-l <sep> : New line code type used in file outputs. CR or LF (default)"
             << "\t           or CRLF." << endl
             << "\t-c [<low_year>,]<high_year>" << endl
             << "\t         : When specified, dump transitions starting <low_year>" << endl
             << "\t           (inclusive) up to <high_year> (exclusive).  The default" << endl
             << "\t           values are 1902(low) and 2038(high)." << endl;
         return argc < 0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR;
     }
     bAll = options[kOptAllZones].doesOccur;
     if (options[kOptDestDir].doesOccur) {
         dir = options[kOptDestDir].value;
     }
     if (options[kOptLineSep].doesOccur) {
         if (strcmp(options[kOptLineSep].value, "CR") == 0) {
             linesep = "\r";
         } else if (strcmp(options[kOptLineSep].value, "CRLF") == 0) {
             linesep = "\r\n";
         } else if (strcmp(options[kOptLineSep].value, "LF") == 0) {
             linesep = "\n";
         }
     }
     if (options[kOptCutover].doesOccur) {
         char* comma = (char*)strchr(options[kOptCutover].value, ',');
         if (comma == NULL) {
             high = atoi(options[kOptCutover].value);
         } else {
             *comma = 0;
             low = atoi(options[kOptCutover].value);
             high = atoi(comma + 1);
         }
     }
     ICUZDump dumper;
     dumper.setLowYear(low);
     dumper.setHighYear(high);
     if (dir != NULL && linesep != NULL) {
         // use the specified line separator only for file output
         dumper.setLineSeparator((const char*)linesep);
     }
     ZoneIterator* zit;
     if (bAll) {
         zit = new ZoneIterator(TRUE);
     } else {
         if (argc <= 1) {
             zit = new ZoneIterator();
         } else {
             zit = new ZoneIterator((const char**)&argv[1], argc - 1);
         }
     }
     UnicodeString id;
     if (dir != NULL) {
         // file output
         ostringstream path;
         ios::openmode mode = ios::out;
         if (linesep != NULL) {
             mode |= ios::binary;
         }
         for (;;) {
             TimeZone* tz = zit->next();
             if (tz == NULL) {
                 break;
             }
             dumper.setTimeZone(tz);
             tz->getID(id);
             // target file path
             path.str("");
             path << dir << U_FILE_SEP_CHAR;
             id = id.findAndReplace("/", "-");
             path << id;
             ofstream* fout = new ofstream(path.str().c_str(), mode);
             if (fout->fail()) {
                 cerr << "Cannot open file " << path << endl;
                 delete fout;
                 delete tz;
                 break;
             }
             dumper.dump(*fout);
             fout->close();
             delete fout;
             delete tz;
         }
     } else {
         // stdout
         UBool bFirst = TRUE;
         for (;;) {
             TimeZone* tz = zit->next();
             if (tz == NULL) {
                 break;
             }
             dumper.setTimeZone(tz);
             tz->getID(id);
             if (bFirst) {
                 bFirst = FALSE;
             } else {
                 cout << endl;
             }
             cout << "ZONE: " << id << endl;
             dumper.dump(cout);
             delete tz;
         }
     }
     delete zit;
 }

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intl/icu/source/tools/tzcode/icuzdump.cpp@fc2d59ddac77 (annotated)

intl/icu/source/tools/tzcode/icuzdump.cpp