+
/*
**********************************************************************
-* Copyright (c) 2003-2006, International Business Machines
+* Copyright (c) 2003-2010, International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
* Author: Alan Liu
using namespace std;
+bool ICU44PLUS = TRUE;
+string TZ_RESOURCE_NAME = ICU_TZ_RESOURCE;
+
//--------------------------------------------------------------------
// Time utilities
//--------------------------------------------------------------------
-const long SECS_PER_YEAR = 31536000; // 365 days
-const long SECS_PER_LEAP_YEAR = 31622400; // 366 days
+const int64_t SECS_PER_YEAR = 31536000; // 365 days
+const int64_t SECS_PER_LEAP_YEAR = 31622400; // 366 days
+const int64_t LOWEST_TIME32 = (int64_t)((int32_t)0x80000000);
+const int64_t HIGHEST_TIME32 = (int64_t)((int32_t)0x7fffffff);
-bool isLeap(int y) {
+bool isLeap(int32_t y) {
return (y%4 == 0) && ((y%100 != 0) || (y%400 == 0)); // Gregorian
}
-long secsPerYear(int y) {
+int64_t secsPerYear(int32_t y) {
return isLeap(y) ? SECS_PER_LEAP_YEAR : SECS_PER_YEAR;
}
* Given a calendar year, return the GMT epoch seconds for midnight
* GMT of January 1 of that year. yearToSeconds(1970) == 0.
*/
-long yearToSeconds(int year) {
+int64_t yearToSeconds(int32_t year) {
// inefficient but foolproof
- long s = 0;
- int y = 1970;
+ int64_t s = 0;
+ int32_t y = 1970;
while (y < year) {
s += secsPerYear(y++);
}
* Given 1970 GMT epoch seconds, return the calendar year containing
* that time. secondsToYear(0) == 1970.
*/
-int secondsToYear(long seconds) {
+int32_t secondsToYear(int64_t seconds) {
// inefficient but foolproof
- int y = 1970;
- long s = 0;
+ int32_t y = 1970;
+ int64_t s = 0;
if (seconds >= 0) {
for (;;) {
s += secsPerYear(y++);
// A transition from one ZoneType to another
// Minimal size = 5 bytes (4+1)
struct Transition {
- long time; // seconds, 1970 epoch
- int type; // index into 'ZoneInfo.types' 0..255
- Transition(long _time, int _type) {
+ int64_t time; // seconds, 1970 epoch
+ int32_t type; // index into 'ZoneInfo.types' 0..255
+ Transition(int64_t _time, int32_t _type) {
time = _time;
type = _type;
}
// Minimal size = 6 bytes (4+1+3bits)
// SEE: SimplifiedZoneType
struct ZoneType {
- long rawoffset; // raw seconds offset from GMT
- long dstoffset; // dst seconds offset from GMT
+ int64_t rawoffset; // raw seconds offset from GMT
+ int64_t dstoffset; // dst seconds offset from GMT
// We don't really need any of the following, but they are
// retained for possible future use. See SimplifiedZoneType.
- int abbr; // index into ZoneInfo.abbrs 0..n-1
+ int32_t abbr; // index into ZoneInfo.abbrs 0..n-1
bool isdst;
bool isstd;
bool isgmt;
vector<string> abbrs;
string finalRuleID;
- int finalOffset;
- int finalYear; // -1 if none
+ int32_t finalOffset;
+ int32_t finalYear; // -1 if none
// If this is an alias, then all other fields are meaningless, and
// this field will point to the "real" zone 0..n-1.
- int aliasTo; // -1 if this is a "real" zone
+ int32_t aliasTo; // -1 if this is a "real" zone
// If there are aliases TO this zone, then the following set will
// contain their index numbers (each index >= 0).
- set<int> aliases;
+ set<int32_t> aliases;
ZoneInfo() : finalYear(-1), aliasTo(-1) {}
void optimizeTypeList();
// Set this zone to be an alias TO another zone.
- void setAliasTo(int index);
+ void setAliasTo(int32_t index);
// Clear the list of aliases OF this zone.
void clearAliases();
// Add an alias to the list of aliases OF this zone.
- void addAlias(int index);
+ void addAlias(int32_t index);
// Is this an alias to another zone?
bool isAlias() const {
}
// Retrieve alias list
- const set<int>& getAliases() const {
+ const set<int32_t>& getAliases() const {
return aliases;
}
aliases.clear();
}
-void ZoneInfo::addAlias(int index) {
+void ZoneInfo::addAlias(int32_t index) {
assert(aliasTo < 0 && index >= 0 && aliases.find(index) == aliases.end());
aliases.insert(index);
}
-void ZoneInfo::setAliasTo(int index) {
+void ZoneInfo::setAliasTo(int32_t index) {
assert(index >= 0);
assert(aliases.size() == 0);
aliasTo = index;
//--------------------------------------------------------------------
// Read zic-coded 32-bit integer from file
-long readcoded(ifstream& file, long minv=numeric_limits<long>::min(),
- long maxv=numeric_limits<long>::max()) {
+int64_t readcoded(ifstream& file, int64_t minv=numeric_limits<int64_t>::min(),
+ int64_t maxv=numeric_limits<int64_t>::max()) {
unsigned char buf[4]; // must be UNSIGNED
- long val=0;
+ int64_t val=0;
file.read((char*)buf, 4);
- for(int i=0,shift=24;i<4;++i,shift-=8) {
+ for(int32_t i=0,shift=24;i<4;++i,shift-=8) {
val |= buf[i] << shift;
}
if (val < minv || val > maxv) {
return val;
}
+// Read zic-coded 64-bit integer from file
+int64_t readcoded64(ifstream& file, int64_t minv=numeric_limits<int64_t>::min(),
+ int64_t maxv=numeric_limits<int64_t>::max()) {
+ unsigned char buf[8]; // must be UNSIGNED
+ int64_t val=0;
+ file.read((char*)buf, 8);
+ for(int32_t i=0,shift=56;i<8;++i,shift-=8) {
+ val |= (int64_t)buf[i] << shift;
+ }
+ if (val < minv || val > maxv) {
+ ostringstream os;
+ os << "coded value out-of-range: " << val << ", expected ["
+ << minv << ", " << maxv << "]";
+ throw out_of_range(os.str());
+ }
+ return val;
+}
+
// Read a boolean value
bool readbool(ifstream& file) {
char c;
file.read(&c, 1);
if (c!=0 && c!=1) {
ostringstream os;
- os << "boolean value out-of-range: " << (int)c;
+ os << "boolean value out-of-range: " << (int32_t)c;
throw out_of_range(os.str());
}
return (c!=0);
* Read the zoneinfo file structure (see tzfile.h) into a ZoneInfo
* @param file an already-open file stream
*/
-void readzoneinfo(ifstream& file, ZoneInfo& info) {
- int i;
+void readzoneinfo(ifstream& file, ZoneInfo& info, bool is64bitData) {
+ int32_t i;
// Check for TZ_ICU_MAGIC signature at file start. If we get a
// signature mismatch, it means we're trying to read a file which
}
// Read array sizes
- long isgmtcnt = readcoded(file, 0);
- long isdstcnt = readcoded(file, 0);
- long leapcnt = readcoded(file, 0);
- long timecnt = readcoded(file, 0);
- long typecnt = readcoded(file, 0);
- long charcnt = readcoded(file, 0);
+ int64_t isgmtcnt = readcoded(file, 0);
+ int64_t isdstcnt = readcoded(file, 0);
+ int64_t leapcnt = readcoded(file, 0);
+ int64_t timecnt = readcoded(file, 0);
+ int64_t typecnt = readcoded(file, 0);
+ int64_t charcnt = readcoded(file, 0);
// Confirm sizes that we assume to be equal. These assumptions
// are drawn from a reading of the zic source (2003a), so they
// Used temporarily to store transition times and types. We need
// to do this because the times and types are stored in two
// separate arrays.
- vector<long> transitionTimes(timecnt, -1); // temporary
- vector<int> transitionTypes(timecnt, -1); // temporary
+ vector<int64_t> transitionTimes(timecnt, -1); // temporary
+ vector<int32_t> transitionTypes(timecnt, -1); // temporary
// Read transition times
for (i=0; i<timecnt; ++i) {
- transitionTimes[i] = readcoded(file);
+ if (is64bitData) {
+ transitionTimes[i] = readcoded64(file);
+ } else {
+ transitionTimes[i] = readcoded(file);
+ }
}
// Read transition types
for (i=0; i<timecnt; ++i) {
unsigned char c;
file.read((char*) &c, 1);
- int t = (int) c;
+ int32_t t = (int32_t) c;
if (t < 0 || t >= typecnt) {
ostringstream os;
os << "illegal type: " << t << ", expected [0, " << (typecnt-1) << "]";
}
// Build transitions vector out of corresponding times and types.
- for (i=0; i<timecnt; ++i) {
- info.transitions.push_back(Transition(transitionTimes[i], transitionTypes[i]));
+ bool insertInitial = false;
+ if (is64bitData && !ICU44PLUS) {
+ if (timecnt > 0) {
+ int32_t minidx = -1;
+ for (i=0; i<timecnt; ++i) {
+ if (transitionTimes[i] < LOWEST_TIME32) {
+ if (minidx == -1 || transitionTimes[i] > transitionTimes[minidx]) {
+ // Preserve the latest transition before the 32bit minimum time
+ minidx = i;
+ }
+ } else if (transitionTimes[i] > HIGHEST_TIME32) {
+ // Skipping the rest of the transition data. We cannot put such
+ // transitions into zoneinfo.res, because data is limited to singed
+ // 32bit int by the ICU resource bundle.
+ break;
+ } else {
+ info.transitions.push_back(Transition(transitionTimes[i], transitionTypes[i]));
+ }
+ }
+
+ if (minidx != -1) {
+ // If there are any transitions before the 32bit minimum time,
+ // put the type information with the 32bit minimum time
+ vector<Transition>::iterator itr = info.transitions.begin();
+ info.transitions.insert(itr, Transition(LOWEST_TIME32, transitionTypes[minidx]));
+ } else {
+ // Otherwise, we need insert the initial type later
+ insertInitial = true;
+ }
+ }
+ } else {
+ for (i=0; i<timecnt; ++i) {
+ info.transitions.push_back(Transition(transitionTimes[i], transitionTypes[i]));
+ }
}
// Read types (except for the isdst and isgmt flags, which come later (why??))
unsigned char c;
file.read((char*) &c, 1);
- type.abbr = (int) c;
+ type.abbr = (int32_t) c;
if (type.isdst != (type.dstoffset != 0)) {
throw invalid_argument("isdst does not reflect dstoffset");
info.types.push_back(type);
}
+
assert(info.types.size() == (unsigned) typecnt);
+ if (insertInitial) {
+ assert(timecnt > 0);
+ assert(typecnt > 0);
+
+ int32_t initialTypeIdx = -1;
+
+ // Check if the first type is not dst
+ if (info.types.at(0).dstoffset != 0) {
+ // Initial type's rawoffset is same with the rawoffset after the
+ // first transition, but no DST is observed.
+ int64_t rawoffset0 = (info.types.at(info.transitions.at(0).type)).rawoffset;
+ // Look for matching type
+ for (i=0; i<(int32_t)info.types.size(); ++i) {
+ if (info.types.at(i).rawoffset == rawoffset0
+ && info.types.at(i).dstoffset == 0) {
+ initialTypeIdx = i;
+ break;
+ }
+ }
+ } else {
+ initialTypeIdx = 0;
+ }
+ assert(initialTypeIdx >= 0);
+ // Add the initial type associated with the lowest int32 time
+ vector<Transition>::iterator itr = info.transitions.begin();
+ info.transitions.insert(itr, Transition(LOWEST_TIME32, initialTypeIdx));
+ }
+
+
// Read the abbreviation string
if (charcnt) {
// All abbreviations are concatenated together, with a 0 at
// Split abbreviations apart into individual strings. Record
// offset of each abbr in a vector.
- vector<int> abbroffset;
+ vector<int32_t> abbroffset;
char *limit=str+charcnt;
for (char* p=str; p<limit; ++p) {
char* start = p;
for (vector<ZoneType>::iterator it=info.types.begin();
it!=info.types.end();
++it) {
- vector<int>::const_iterator x=
+ vector<int32_t>::const_iterator x=
find(abbroffset.begin(), abbroffset.end(), it->abbr);
if (x==abbroffset.end()) {
// TODO: Modify code to add a new string to the end of
ostringstream os;
os << "Warning: unusual abbr offset " << it->abbr
<< ", expected one of";
- for (vector<int>::const_iterator y=abbroffset.begin();
+ for (vector<int32_t>::const_iterator y=abbroffset.begin();
y!=abbroffset.end(); ++y) {
os << ' ' << *y;
}
#endif
it->abbr = 0;
} else {
- int index = x - abbroffset.begin();
+ int32_t index = x - abbroffset.begin();
it->abbr = index;
abbrseen[index] = true;
}
}
- for (int ii=0;ii<(int) abbrseen.size();++ii) {
+ for (int32_t ii=0;ii<(int32_t) abbrseen.size();++ii) {
if (!abbrseen[ii]) {
cerr << "Warning: unused abbreviation: " << ii << endl;
}
if (!file) {
throw invalid_argument("can't open file");
}
+
+ // eat 32bit data part
ZoneInfo info;
- readzoneinfo(file, info);
+ readzoneinfo(file, info, false);
// Check for errors
if (!file) {
throw invalid_argument("read error");
}
- // Check eof-relative pos (there may be a cleaner way to do this)
- long eofPos = (long) file.tellg();
- char buf[32];
- file.read(buf, 4);
- file.seekg(0, ios::end);
- eofPos = eofPos - (long) file.tellg();
- if (eofPos) {
- // 2006c merged 32 and 64 bit versions in a fat binary
- // 64 version starts at the end of 32 bit version.
- // Therefore, if the file is *not* consumed, check
- // if it is maybe being restarted.
- if (strncmp(buf, TZ_ICU_MAGIC, 4) != 0) {
+ // we only use 64bit part
+ ZoneInfo info64;
+ readzoneinfo(file, info64, true);
+
+ bool alldone = false;
+ int64_t eofPos = (int64_t) file.tellg();
+
+ // '\n' + <envvar string> + '\n' after the 64bit version data
+ char ch = file.get();
+ if (ch == 0x0a) {
+ bool invalidchar = false;
+ while (file.get(ch)) {
+ if (ch == 0x0a) {
+ break;
+ }
+ if (ch < 0x20) {
+ // must be printable ascii
+ invalidchar = true;
+ break;
+ }
+ }
+ if (!invalidchar) {
+ eofPos = (int64_t) file.tellg();
+ file.seekg(0, ios::end);
+ eofPos = eofPos - (int64_t) file.tellg();
+ if (eofPos == 0) {
+ alldone = true;
+ }
+ }
+ }
+ if (!alldone) {
ostringstream os;
os << (-eofPos) << " unprocessed bytes at end";
throw invalid_argument(os.str());
}
- }
- ZONEINFO[id] = info;
+ ZONEINFO[id] = info64;
}
/**
closedir(dp);
chdir(pwd);
- for(int i=0;i<(int)subfiles.size();i+=2) {
+ for(int32_t i=0;i<(int32_t)subfiles.size();i+=2) {
try {
handleFile(subfiles[i], subfiles[i+1]);
} catch (const exception& e) {
exit(1);
}
}
- for(int i=0;i<(int)subdirs.size();i+=2) {
+ for(int32_t i=0;i<(int32_t)subdirs.size();i+=2) {
scandir(subdirs[i], subdirs[i+1]);
}
}
* Read and discard the current line.
*/
void consumeLine(istream& in) {
- int c;
+ int32_t c;
do {
c = in.get();
} while (c != EOF && c != '\n');
// Allow 29 days in February because zic outputs February 29
// for rules like "last Sunday in February".
-const int MONTH_LEN[] = {31,29,31,30,31,30,31,31,30,31,30,31};
+const int32_t MONTH_LEN[] = {31,29,31,30,31,30,31,31,30,31,30,31};
-const int HOUR = 3600;
+const int32_t HOUR = 3600;
struct FinalZone {
- int offset; // raw offset
- int year; // takes effect for y >= year
+ int32_t offset; // raw offset
+ int32_t year; // takes effect for y >= year
string ruleid;
set<string> aliases;
- FinalZone(int _offset, int _year, const string& _ruleid) :
+ FinalZone(int32_t _offset, int32_t _year, const string& _ruleid) :
offset(_offset), year(_year), ruleid(_ruleid) {
if (offset <= -16*HOUR || offset >= 16*HOUR) {
ostringstream os;
};
struct FinalRulePart {
- int mode;
- int month;
- int dom;
- int dow;
- int time;
- int offset; // dst offset, usually either 0 or 1:00
+ int32_t mode;
+ int32_t month;
+ int32_t dom;
+ int32_t dow;
+ int32_t time;
+ int32_t offset; // dst offset, usually either 0 or 1:00
// Isstd and isgmt only have 3 valid states, corresponding to local
// wall time, local standard time, and GMT standard time.
FinalRulePart() : isset(false) {}
void set(const string& id,
const string& _mode,
- int _month,
- int _dom,
- int _dow,
- int _time,
+ int32_t _month,
+ int32_t _dom,
+ int32_t _dow,
+ int32_t _time,
bool _isstd,
bool _isgmt,
- int _offset) {
+ int32_t _offset) {
if (isset) {
throw invalid_argument("FinalRulePart set twice");
}
* Return the time mode as an ICU SimpleTimeZone int from 0..2;
* see simpletz.h.
*/
- int timemode() const {
+ int32_t timemode() const {
if (isgmt) {
assert(isstd);
return 2; // gmt standard
/**
* Return a "dowim" param suitable for SimpleTimeZone.
*/
- int stz_dowim() const {
+ int32_t stz_dowim() const {
return (mode == DOWLEQ) ? -dom : dom;
}
/**
* Return a "dow" param suitable for SimpleTimeZone.
*/
- int stz_dow() const {
+ int32_t stz_dow() const {
return (mode == DOM) ? 0 : -(dow+1);
}
};
} else if (token == "zone") {
// zone Africa/Cairo 7200 1995 Egypt # zone Africa/Cairo, offset 7200, year >= 1995, rule Egypt (0)
string id, ruleid;
- int offset, year;
+ int32_t offset, year;
in >> id >> offset >> year >> ruleid;
consumeLine(in);
finalZones[id] = FinalZone(offset, year, ruleid);
// rule US DOWGEQ 3 1 0 7200 0 0 3600 # 52: US, file data/northamerica, line 119, mode DOWGEQ, April, dom 1, Sunday, time 7200, isstd 0, isgmt 0, offset 3600
// rule US DOWLEQ 9 31 0 7200 0 0 0 # 53: US, file data/northamerica, line 114, mode DOWLEQ, October, dom 31, Sunday, time 7200, isstd 0, isgmt 0, offset 0
string id, mode;
- int month, dom, dow, time, offset;
+ int32_t month, dom, dow, time, offset;
bool isstd, isgmt;
in >> id >> mode >> month >> dom >> dow >> time >> isstd >> isgmt >> offset;
consumeLine(in);
FinalRule& fr = finalRules[id];
- int p = fr.part[0].isset ? 1 : 0;
+ int32_t p = fr.part[0].isset ? 1 : 0;
fr.part[p].set(id, mode, month, dom, dow, time, isstd, isgmt, offset);
} else if (token == "link") {
string fromid, toid; // fromid == "real" zone, toid == alias
void ZoneInfo::print(ostream& os, const string& id) const {
// Implement compressed format #2:
-
os << " /* " << id << " */ ";
if (aliasTo >= 0) {
return;
}
- os << ":array {" << endl;
+ if (ICU44PLUS) {
+ os << ":table {" << endl;
+ } else {
+ os << ":array {" << endl;
+ }
vector<Transition>::const_iterator trn;
vector<ZoneType>::const_iterator typ;
- bool first=true;
- os << " :intvector { ";
- for (trn = transitions.begin(); trn != transitions.end(); ++trn) {
- if (!first) os << ", ";
- first = false;
- os << trn->time;
+ bool first;
+
+ if (ICU44PLUS) {
+ trn = transitions.begin();
+
+ // pre 32bit transitions
+ if (trn != transitions.end() && trn->time < LOWEST_TIME32) {
+ os << " transPre32:intvector { ";
+ for (first = true; trn != transitions.end() && trn->time < LOWEST_TIME32; ++trn) {
+ if (!first) {
+ os<< ", ";
+ }
+ first = false;
+ os << (int32_t)(trn->time >> 32) << ", " << (int32_t)(trn->time & 0x00000000ffffffff);
+ }
+ os << " }" << endl;
+ }
+
+ // 32bit transtions
+ if (trn != transitions.end() && trn->time < HIGHEST_TIME32) {
+ os << " trans:intvector { ";
+ for (first = true; trn != transitions.end() && trn->time < HIGHEST_TIME32; ++trn) {
+ if (!first) {
+ os << ", ";
+ }
+ first = false;
+ os << trn->time;
+ }
+ os << " }" << endl;
+ }
+
+ // post 32bit transitons
+ if (trn != transitions.end()) {
+ os << " transPost32:intvector { ";
+ for (first = true; trn != transitions.end(); ++trn) {
+ if (!first) {
+ os<< ", ";
+ }
+ first = false;
+ os << (int32_t)(trn->time >> 32) << ", " << (int32_t)(trn->time & 0x00000000ffffffff);
+ }
+ os << " }" << endl;
+ }
+ } else {
+ os << " :intvector { ";
+ for (trn = transitions.begin(), first = true; trn != transitions.end(); ++trn) {
+ if (!first) os << ", ";
+ first = false;
+ os << trn->time;
+ }
+ os << " }" << endl;
}
- os << " }" << endl;
+
first=true;
- os << " :intvector { ";
+ if (ICU44PLUS) {
+ os << " typeOffsets:intvector { ";
+ } else {
+ os << " :intvector { ";
+ }
for (typ = types.begin(); typ != types.end(); ++typ) {
if (!first) os << ", ";
first = false;
}
os << " }" << endl;
- os << " :bin { \"" << hex << setfill('0');
- for (trn = transitions.begin(); trn != transitions.end(); ++trn) {
- os << setw(2) << trn->type;
+ if (ICU44PLUS) {
+ if (transitions.size() != 0) {
+ os << " typeMap:bin { \"" << hex << setfill('0');
+ for (trn = transitions.begin(); trn != transitions.end(); ++trn) {
+ os << setw(2) << trn->type;
+ }
+ os << dec << "\" }" << endl;
+ }
+ } else {
+ os << " :bin { \"" << hex << setfill('0');
+ for (trn = transitions.begin(); trn != transitions.end(); ++trn) {
+ os << setw(2) << trn->type;
+ }
+ os << dec << "\" }" << endl;
}
- os << dec << "\" }" << endl;
// Final zone info, if any
if (finalYear != -1) {
- os << " \"" << finalRuleID << "\"" << endl;
- os << " :intvector { " << finalOffset << ", "
- << finalYear << " }" << endl;
+ if (ICU44PLUS) {
+ os << " finalRule { \"" << finalRuleID << "\" }" << endl;
+ os << " finalRaw:int { " << finalOffset << " }" << endl;
+ os << " finalYear:int { " << finalYear << " }" << endl;
+ } else {
+ os << " \"" << finalRuleID << "\"" << endl;
+ os << " :intvector { " << finalOffset << ", "
+ << finalYear << " }" << endl;
+ }
}
// Alias list, if any
if (aliases.size() != 0) {
first = true;
- os << " :intvector { ";
- for (set<int>::const_iterator i=aliases.begin(); i!=aliases.end(); ++i) {
+ if (ICU44PLUS) {
+ os << " links:intvector { ";
+ } else {
+ os << " :intvector { ";
+ }
+ for (set<int32_t>::const_iterator i=aliases.begin(); i!=aliases.end(); ++i) {
if (!first) os << ", ";
first = false;
os << *i;
inline ostream&
operator<<(ostream& os, const ZoneMap& zoneinfo) {
- int c = 0;
+ int32_t c = 0;
for (ZoneMapIter it = zoneinfo.begin();
it != zoneinfo.end();
++it) {
- if(c) os << ",";
+ if(c && !ICU44PLUS) os << ",";
it->second.print(os, it->first);
os << "//Z#" << c++ << endl;
}
// print the string list
ostream& printStringList( ostream& os, const ZoneMap& zoneinfo) {
- int n = 0; // count
- int col = 0; // column
+ int32_t n = 0; // count
+ int32_t col = 0; // column
os << " Names {" << endl
<< " ";
for (ZoneMapIter it = zoneinfo.begin();
//--------------------------------------------------------------------
// Unary predicate for finding transitions after a given time
-bool isAfter(const Transition t, long thresh) {
+bool isAfter(const Transition t, int64_t thresh) {
return t.time >= thresh;
}
* optimizeTypeList() method.
*/
struct SimplifiedZoneType {
- long rawoffset;
- long dstoffset;
+ int64_t rawoffset;
+ int64_t dstoffset;
SimplifiedZoneType() : rawoffset(-1), dstoffset(-1) {}
SimplifiedZoneType(const ZoneType& t) : rawoffset(t.rawoffset),
dstoffset(t.dstoffset) {}
if (aliasTo >= 0) return; // Nothing to do for aliases
- // If there are zero transitions and one type, then leave that as-is.
- if (transitions.size() == 0) {
- if (types.size() != 1) {
- cerr << "Error: transition count = 0, type count = " << types.size() << endl;
+ if (!ICU44PLUS) {
+ // This is the old logic which has a bug, which occasionally removes
+ // the type before the first transition. The problem was fixed
+ // by inserting the dummy transition indirectly.
+
+ // If there are zero transitions and one type, then leave that as-is.
+ if (transitions.size() == 0) {
+ if (types.size() != 1) {
+ cerr << "Error: transition count = 0, type count = " << types.size() << endl;
+ }
+ return;
}
- return;
- }
- set<SimplifiedZoneType> simpleset;
- for (vector<Transition>::const_iterator i=transitions.begin();
- i!=transitions.end(); ++i) {
- assert(i->type < (int)types.size());
- simpleset.insert(types[i->type]);
- }
+ set<SimplifiedZoneType> simpleset;
+ for (vector<Transition>::const_iterator i=transitions.begin();
+ i!=transitions.end(); ++i) {
+ assert(i->type < (int32_t)types.size());
+ simpleset.insert(types[i->type]);
+ }
- // Map types to integer indices
- map<SimplifiedZoneType,int> simplemap;
- int n=0;
- for (set<SimplifiedZoneType>::const_iterator i=simpleset.begin();
- i!=simpleset.end(); ++i) {
- simplemap[*i] = n++;
- }
+ // Map types to integer indices
+ map<SimplifiedZoneType,int32_t> simplemap;
+ int32_t n=0;
+ for (set<SimplifiedZoneType>::const_iterator i=simpleset.begin();
+ i!=simpleset.end(); ++i) {
+ simplemap[*i] = n++;
+ }
- // Remap transitions
- for (vector<Transition>::iterator i=transitions.begin();
- i!=transitions.end(); ++i) {
- assert(i->type < (int)types.size());
- ZoneType oldtype = types[i->type];
- SimplifiedZoneType newtype(oldtype);
- assert(simplemap.find(newtype) != simplemap.end());
- i->type = simplemap[newtype];
+ // Remap transitions
+ for (vector<Transition>::iterator i=transitions.begin();
+ i!=transitions.end(); ++i) {
+ assert(i->type < (int32_t)types.size());
+ ZoneType oldtype = types[i->type];
+ SimplifiedZoneType newtype(oldtype);
+ assert(simplemap.find(newtype) != simplemap.end());
+ i->type = simplemap[newtype];
+ }
+
+ // Replace type list
+ types.clear();
+ copy(simpleset.begin(), simpleset.end(), back_inserter(types));
+
+ } else {
+ if (types.size() > 1) {
+ // Note: localtime uses the very first non-dst type as initial offsets.
+ // If all types are DSTs, the very first type is treated as the initial offsets.
+
+ // Decide a type used as the initial offsets. ICU put the type at index 0.
+ ZoneType initialType = types[0];
+ for (vector<ZoneType>::const_iterator i=types.begin(); i!=types.end(); ++i) {
+ if (i->dstoffset == 0) {
+ initialType = *i;
+ break;
+ }
+ }
+
+ SimplifiedZoneType initialSimplifiedType(initialType);
+
+ // create a set of unique types, but ignoring fields which we're not interested in
+ set<SimplifiedZoneType> simpleset;
+ simpleset.insert(initialSimplifiedType);
+ for (vector<Transition>::const_iterator i=transitions.begin(); i!=transitions.end(); ++i) {
+ assert(i->type < (int32_t)types.size());
+ simpleset.insert(types[i->type]);
+ }
+
+ // Map types to integer indices, however, keeping the first type at offset 0
+ map<SimplifiedZoneType,int32_t> simplemap;
+ simplemap[initialSimplifiedType] = 0;
+ int32_t n = 1;
+ for (set<SimplifiedZoneType>::const_iterator i=simpleset.begin(); i!=simpleset.end(); ++i) {
+ if (*i < initialSimplifiedType || initialSimplifiedType < *i) {
+ simplemap[*i] = n++;
+ }
+ }
+
+ // Remap transitions
+ for (vector<Transition>::iterator i=transitions.begin();
+ i!=transitions.end(); ++i) {
+ assert(i->type < (int32_t)types.size());
+ ZoneType oldtype = types[i->type];
+ SimplifiedZoneType newtype(oldtype);
+ assert(simplemap.find(newtype) != simplemap.end());
+ i->type = simplemap[newtype];
+ }
+
+ // Replace type list
+ types.clear();
+ types.push_back(initialSimplifiedType);
+ for (set<SimplifiedZoneType>::const_iterator i=simpleset.begin(); i!=simpleset.end(); ++i) {
+ if (*i < initialSimplifiedType || initialSimplifiedType < *i) {
+ types.push_back(*i);
+ }
+ }
+
+ // Reiterating transitions to remove any transitions which
+ // do not actually change the raw/dst offsets
+ int32_t prevTypeIdx = 0;
+ for (vector<Transition>::iterator i=transitions.begin(); i!=transitions.end();) {
+ if (i->type == prevTypeIdx) {
+ // this is not a time transition, probably just name change
+ // e.g. America/Resolute after 2006 in 2010b
+ transitions.erase(i);
+ } else {
+ prevTypeIdx = i->type;
+ i++;
+ }
+ }
+ }
}
- // Replace type list
- types.clear();
- copy(simpleset.begin(), simpleset.end(), back_inserter(types));
}
/**
* Merge final zone data into this zone.
*/
void ZoneInfo::mergeFinalData(const FinalZone& fz) {
- int year = fz.year;
- long seconds = yearToSeconds(year);
+ int32_t year = fz.year;
+ int64_t seconds = yearToSeconds(year);
+
+ if (!ICU44PLUS) {
+ if (seconds > HIGHEST_TIME32) {
+ // Avoid transitions beyond signed 32bit max second.
+ // This may result incorrect offset computation around
+ // HIGHEST_TIME32. This is a limitation of ICU
+ // before 4.4.
+ seconds = HIGHEST_TIME32;
+ }
+ }
+
vector<Transition>::iterator it =
find_if(transitions.begin(), transitions.end(),
bind2nd(ptr_fun(isAfter), seconds));
void FinalRule::print(ostream& os) const {
// First print the rule part that enters DST; then the rule part
// that exits it.
- int whichpart = (part[0].offset != 0) ? 0 : 1;
+ int32_t whichpart = (part[0].offset != 0) ? 0 : 1;
assert(part[whichpart].offset != 0);
assert(part[1-whichpart].offset == 0);
os << " ";
- for (int i=0; i<2; ++i) {
+ for (int32_t i=0; i<2; ++i) {
const FinalRulePart& p = part[whichpart];
whichpart = 1-whichpart;
os << p.month << ", " << p.stz_dowim() << ", " << p.stz_dow() << ", "
int main(int argc, char *argv[]) {
string rootpath, zonetab, version;
+ bool validArgs = FALSE;
- if (argc != 4) {
- cout << "Usage: tz2icu <dir> <cmap> <vers>" << endl
- << " <dir> path to zoneinfo file tree generated by" << endl
- << " ICU-patched version of zic" << endl
- << " <cmap> country map, from tzdata archive," << endl
- << " typically named \"zone.tab\"" << endl
- << " <vers> version string, such as \"2003e\"" << endl;
- exit(1);
- } else {
+ if (argc == 4 || argc == 5) {
+ validArgs = TRUE;
rootpath = argv[1];
zonetab = argv[2];
version = argv[3];
+ if (argc == 5) {
+ if (strcmp(argv[4], "--old") == 0) {
+ ICU44PLUS = FALSE;
+ TZ_RESOURCE_NAME = ICU_TZ_RESOURCE_OLD;
+ } else {
+ validArgs = FALSE;
+ }
+ }
+ }
+ if (!validArgs) {
+ cout << "Usage: tz2icu <dir> <cmap> <tzver> [--old]" << endl
+ << " <dir> path to zoneinfo file tree generated by" << endl
+ << " ICU-patched version of zic" << endl
+ << " <cmap> country map, from tzdata archive," << endl
+ << " typically named \"zone.tab\"" << endl
+ << " <tzver> version string, such as \"2003e\"" << endl
+ << " --old generating resource format before ICU4.4" << endl;
+ exit(1);
}
cout << "Olson data version: " << version << endl;
+ cout << "ICU 4.4+ format: " << (ICU44PLUS ? "Yes" : "No") << endl;
try {
ifstream finals(ICU_ZONE_FILE);
return 1;
}
- // Read the legacy alias list and process it. Treat the legacy mappings
- // like links, but also record them in the "legacy" hash.
- try {
- ifstream aliases(ICU_TZ_ALIAS);
- if (!aliases) {
- cerr << "Error: Unable to open " ICU_TZ_ALIAS << endl;
- return 1;
- }
- int n = 0;
- string line;
- while (getline(aliases, line)) {
- string::size_type lb = line.find('#');
- if (lb != string::npos) {
- line.resize(lb); // trim comments
- }
- vector<string> a;
- istringstream is(line);
- copy(istream_iterator<string>(is),istream_iterator<string>(),
- back_inserter(a));
- if (a.size() == 0) continue; // blank line
- if (a.size() != 2) {
- cerr << "Error: Can't parse \"" << line << "\" in "
- ICU_TZ_ALIAS << endl;
- exit(1);
- }
- ++n;
-
- string alias(a[0]), olson(a[1]);
- if (links.find(alias) != links.end()) {
- cerr << "Error: Alias \"" << alias
- << "\" is an Olson zone in "
- ICU_TZ_ALIAS << endl;
- return 1;
- }
- if (reverseLinks.find(alias) != reverseLinks.end()) {
- cerr << "Error: Alias \"" << alias
- << "\" is an Olson link to \"" << reverseLinks[olson]
- << "\" in " << ICU_TZ_ALIAS << endl;
- return 1;
- }
-
- // Record source for error reporting
- if (linkSource.find(olson) == linkSource.end()) {
- linkSource[olson] = "ICU alias";
- }
- assert(linkSource.find(alias) == linkSource.end());
- linkSource[alias] = "ICU alias";
-
- links[olson].insert(alias);
- reverseLinks[alias] = olson;
- }
- cout << "Finished reading " << n
- << " aliases from " ICU_TZ_ALIAS << endl;
- } catch (const exception& error) {
- cerr << "Error: While reading " ICU_TZ_ALIAS ": " << error.what() << endl;
- return 1;
- }
-
try {
// Recursively scan all files below the given path, accumulating
// their data into ZONEINFO. All files must be TZif files. Any
}
// 2. Create a mapping from zones to index numbers 0..n-1.
- map<string,int> zoneIDs;
+ map<string,int32_t> zoneIDs;
vector<string> zoneIDlist;
- int z=0;
+ int32_t z=0;
for (ZoneMap::iterator i=ZONEINFO.begin(); i!=ZONEINFO.end(); ++i) {
zoneIDs[i->first] = z++;
zoneIDlist.push_back(i->first);
}
- assert(z == (int) ZONEINFO.size());
+ assert(z == (int32_t) ZONEINFO.size());
// 3. Merge aliases. Sometimes aliases link to other aliases; we
// resolve these into simplest possible sets.
cerr << "Error: Unable to open " << zonetab << endl;
return 1;
}
- int n = 0;
+ int32_t n = 0;
string line;
while (getline(f, line)) {
string::size_type lb = line.find('#');
time_t sec;
time(&sec);
struct tm* now = localtime(&sec);
- int thisYear = now->tm_year + 1900;
+ int32_t thisYear = now->tm_year + 1900;
+ string filename = TZ_RESOURCE_NAME + ".txt";
// Write out a resource-bundle source file containing data for
// all zones.
- ofstream file(ICU_TZ_RESOURCE ".txt");
+ ofstream file(filename.c_str());
if (file) {
file << "//---------------------------------------------------------" << endl
<< "// Copyright (C) 2003";
<< "// Build date: " << asctime(now) /* << endl -- asctime emits CR */
<< "// Olson source: ftp://elsie.nci.nih.gov/pub/" << endl
<< "// Olson version: " << version << endl
+ << "// ICU version: " << U_ICU_VERSION << endl
<< "//---------------------------------------------------------" << endl
<< "// >> !!! >> THIS IS A MACHINE-GENERATED FILE << !!! <<" << endl
<< "// >> !!! >>> DO NOT EDIT <<< !!! <<" << endl
<< "//---------------------------------------------------------" << endl
<< endl
- << ICU_TZ_RESOURCE " {" << endl
+ << TZ_RESOURCE_NAME << ":table(nofallback) {" << endl
+ << " TZVersion { \"" << version << "\" }" << endl
<< " Zones:array { " << endl
<< ZONEINFO // Zones (the actual data)
<< " }" << endl;
// Final Rules are used if requested by the zone
file << " Rules { " << endl;
// Emit final rules
- int frc = 0;
+ int32_t frc = 0;
for(map<string,FinalRule>::iterator i=finalRules.begin();
i!=finalRules.end(); ++i) {
const string& id = i->first;
}
file << " }" << endl;
- // Emit country (region) map. Emitting the string zone IDs results
- // in a 188 kb binary resource; emitting the zone index numbers
- // trims this to 171 kb. More work for the runtime code, but
- // a smaller data footprint.
- file << " Regions { " << endl;
- int rc = 0;
- for (map<string, set<string> >::const_iterator i=countryMap.begin();
- i != countryMap.end(); ++i) {
- string country = i->first;
- const set<string>& zones(i->second);
- file << " ";
- if(country[0]==0) {
- file << "Default";
+ // Emit country (region) map.
+ if (ICU44PLUS) {
+ file << " Regions:array {" << endl;
+ int32_t zn = 0;
+ for (ZoneMap::iterator i=ZONEINFO.begin(); i!=ZONEINFO.end(); ++i) {
+ map<string, string>::iterator cit = reverseCountryMap.find(i->first);
+ if (cit == reverseCountryMap.end()) {
+ file << " \"001\",";
+ } else {
+ file << " \"" << cit->second << "\", ";
+ }
+ file << "//Z#" << zn++ << " " << i->first << endl;
}
- file << country << ":intvector { ";
- bool first = true;
- for (set<string>::const_iterator j=zones.begin();
- j != zones.end(); ++j) {
- if (!first) file << ", ";
- first = false;
- if (zoneIDs.find(*j) == zoneIDs.end()) {
- cerr << "Error: Nonexistent zone in country map: " << *j << endl;
- return 1;
+ file << " }" << endl;
+ } else {
+ file << " Regions { " << endl;
+ int32_t rc = 0;
+ for (map<string, set<string> >::const_iterator i=countryMap.begin();
+ i != countryMap.end(); ++i) {
+ string country = i->first;
+ const set<string>& zones(i->second);
+ file << " ";
+ if(country[0]==0) {
+ file << "Default";
}
- file << zoneIDs[*j]; // emit the zone's index number
+ file << country << ":intvector { ";
+ bool first = true;
+ for (set<string>::const_iterator j=zones.begin();
+ j != zones.end(); ++j) {
+ if (!first) file << ", ";
+ first = false;
+ if (zoneIDs.find(*j) == zoneIDs.end()) {
+ cerr << "Error: Nonexistent zone in country map: " << *j << endl;
+ return 1;
+ }
+ file << zoneIDs[*j]; // emit the zone's index number
+ }
+ file << " } //R#" << rc++ << endl;
}
- file << " } //R#" << rc++ << endl;
+ file << " }" << endl;
}
- file << " }" << endl;
file << "}" << endl;
}
file.close();
if (file) { // recheck error bit
- cout << "Finished writing " ICU_TZ_RESOURCE ".txt" << endl;
- } else {
- cerr << "Error: Unable to open/write to " ICU_TZ_RESOURCE ".txt" << endl;
- return 1;
- }
-
-#define ICU4J_TZ_CLASS "ZoneMetaData"
-
- // Write out a Java source file containing only a few pieces of
- // meta-data missing from the core JDK: the equivalency lists and
- // the country map.
- ofstream java(ICU4J_TZ_CLASS ".java");
- if (java) {
- java << "//---------------------------------------------------------" << endl
- << "// Copyright (C) 2003";
- if (thisYear > 2003) {
- java << "-" << thisYear;
- }
- java << ", International Business Machines" << endl
- << "// Corporation and others. All Rights Reserved." << endl
- << "//---------------------------------------------------------" << endl
- << "// Build tool: tz2icu" << endl
- << "// Build date: " << asctime(now) /* << endl -- asctime emits CR */
- << "// Olson source: ftp://elsie.nci.nih.gov/pub/" << endl
- << "// Olson version: " << version << endl
- << "// ICU version: " << U_ICU_VERSION << endl
- << "//---------------------------------------------------------" << endl
- << "// >> !!! >> THIS IS A MACHINE-GENERATED FILE << !!! <<" << endl
- << "// >> !!! >>> DO NOT EDIT <<< !!! <<" << endl
- << "//---------------------------------------------------------" << endl
- << endl
- << "package com.ibm.icu.impl;" << endl
- << endl
- << "public final class " ICU4J_TZ_CLASS " {" << endl;
-
- // Emit equivalency lists
- bool first1 = true;
- java << " public static final String VERSION = \"" + version + "\";" << endl;
- java << " public static final String[][] EQUIV = {" << endl;
- for (ZoneMap::const_iterator i=ZONEINFO.begin(); i!=ZONEINFO.end(); ++i) {
- if (i->second.isAlias() || i->second.getAliases().size() == 0) {
- continue;
- }
- if (!first1) java << "," << endl;
- first1 = false;
- // The ID of this zone (the canonical zone, to which the
- // aliases point) will be sorted into the list, so it
- // won't be at position 0. If we want to know which is
- // the canonical zone, we should move it to position 0.
- java << " { ";
- bool first2 = true;
- const set<int>& s = i->second.getAliases();
- for (set<int>::const_iterator j=s.begin(); j!=s.end(); ++j) {
- if (!first2) java << ", ";
- java << '"' << zoneIDlist[*j] << '"';
- first2 = false;
- }
- java << " }";
- }
- java << endl
- << " };" << endl;
-
- // Emit country map.
- first1 = true;
- java << " public static final String[][] COUNTRY = {" << endl;
- for (map<string, set<string> >::const_iterator i=countryMap.begin();
- i != countryMap.end(); ++i) {
- if (!first1) java << "," << endl;
- first1 = false;
- string country = i->first;
- const set<string>& zones(i->second);
- java << " { \"" << country << '"';
- for (set<string>::const_iterator j=zones.begin();
- j != zones.end(); ++j) {
- java << ", \"" << *j << '"';
- }
- java << " }";
- }
- java << endl
- << " };" << endl;
-
- java << "}" << endl;
- }
-
- java.close();
-
- if (java) { // recheck error bit
- cout << "Finished writing " ICU4J_TZ_CLASS ".java" << endl;
+ cout << "Finished writing " << TZ_RESOURCE_NAME << ".txt" << endl;
} else {
- cerr << "Error: Unable to open/write to " ICU4J_TZ_CLASS ".java" << endl;
+ cerr << "Error: Unable to open/write to " << TZ_RESOURCE_NAME << ".txt" << endl;
return 1;
}
-
- return 0;
}
-
//eof
projects / apple / icu.git / blobdiff