/* Copyright (C) 2006-2016 J.F.Dockes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <ctype.h>
#include <errno.h>
#include <time.h>
#include <string.h>
#include <math.h>
// Older compilers don't support stdc++ regex, but Windows does not
// have the Linux one. Have a simple class to solve the simple cases.
#if defined(_WIN32)
#define USE_STD_REGEX
#include <regex>
#else
#define USE_LINUX_REGEX
#include <regex.h>
#endif
#include <string>
#include <iostream>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include "smallut.h"
using namespace std;
int stringicmp(const string& s1, const string& s2)
{
string::const_iterator it1 = s1.begin();
string::const_iterator it2 = s2.begin();
string::size_type size1 = s1.length(), size2 = s2.length();
char c1, c2;
if (size1 < size2) {
while (it1 != s1.end()) {
c1 = ::toupper(*it1);
c2 = ::toupper(*it2);
if (c1 != c2) {
return c1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : -1;
} else {
while (it2 != s2.end()) {
c1 = ::toupper(*it1);
c2 = ::toupper(*it2);
if (c1 != c2) {
return c1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : 1;
}
}
void stringtolower(string& io)
{
string::iterator it = io.begin();
string::iterator ite = io.end();
while (it != ite) {
*it = ::tolower(*it);
it++;
}
}
string stringtolower(const string& i)
{
string o = i;
stringtolower(o);
return o;
}
void stringtoupper(string& io)
{
string::iterator it = io.begin();
string::iterator ite = io.end();
while (it != ite) {
*it = ::toupper(*it);
it++;
}
}
string stringtoupper(const string& i)
{
string o = i;
stringtoupper(o);
return o;
}
extern int stringisuffcmp(const string& s1, const string& s2)
{
string::const_reverse_iterator r1 = s1.rbegin(), re1 = s1.rend(),
r2 = s2.rbegin(), re2 = s2.rend();
while (r1 != re1 && r2 != re2) {
char c1 = ::toupper(*r1);
char c2 = ::toupper(*r2);
if (c1 != c2) {
return c1 > c2 ? 1 : -1;
}
++r1;
++r2;
}
return 0;
}
// s1 is already lowercase
int stringlowercmp(const string& s1, const string& s2)
{
string::const_iterator it1 = s1.begin();
string::const_iterator it2 = s2.begin();
string::size_type size1 = s1.length(), size2 = s2.length();
char c2;
if (size1 < size2) {
while (it1 != s1.end()) {
c2 = ::tolower(*it2);
if (*it1 != c2) {
return *it1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : -1;
} else {
while (it2 != s2.end()) {
c2 = ::tolower(*it2);
if (*it1 != c2) {
return *it1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : 1;
}
}
// s1 is already uppercase
int stringuppercmp(const string& s1, const string& s2)
{
string::const_iterator it1 = s1.begin();
string::const_iterator it2 = s2.begin();
string::size_type size1 = s1.length(), size2 = s2.length();
char c2;
if (size1 < size2) {
while (it1 != s1.end()) {
c2 = ::toupper(*it2);
if (*it1 != c2) {
return *it1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : -1;
} else {
while (it2 != s2.end()) {
c2 = ::toupper(*it2);
if (*it1 != c2) {
return *it1 > c2 ? 1 : -1;
}
++it1;
++it2;
}
return size1 == size2 ? 0 : 1;
}
}
bool beginswith(const std::string& big, const std::string& small)
{
if (big.compare(0, small.size(), small)) {
return false;
}
return true;
}
// Compare charset names, removing the more common spelling variations
bool samecharset(const string& cs1, const string& cs2)
{
string mcs1, mcs2;
// Remove all - and _, turn to lowecase
for (unsigned int i = 0; i < cs1.length(); i++) {
if (cs1[i] != '_' && cs1[i] != '-') {
mcs1 += ::tolower(cs1[i]);
}
}
for (unsigned int i = 0; i < cs2.length(); i++) {
if (cs2[i] != '_' && cs2[i] != '-') {
mcs2 += ::tolower(cs2[i]);
}
}
return mcs1 == mcs2;
}
template <class T> bool stringToStrings(const string& s, T& tokens,
const string& addseps)
{
string current;
tokens.clear();
enum states {SPACE, TOKEN, INQUOTE, ESCAPE};
states state = SPACE;
for (unsigned int i = 0; i < s.length(); i++) {
switch (s[i]) {
case '"':
switch (state) {
case SPACE:
state = INQUOTE;
continue;
case TOKEN:
current += '"';
continue;
case INQUOTE:
tokens.insert(tokens.end(), current);
current.clear();
state = SPACE;
continue;
case ESCAPE:
current += '"';
state = INQUOTE;
continue;
}
break;
case '\\':
switch (state) {
case SPACE:
case TOKEN:
current += '\\';
state = TOKEN;
continue;
case INQUOTE:
state = ESCAPE;
continue;
case ESCAPE:
current += '\\';
state = INQUOTE;
continue;
}
break;
case ' ':
case '\t':
case '\n':
case '\r':
switch (state) {
case SPACE:
continue;
case TOKEN:
tokens.insert(tokens.end(), current);
current.clear();
state = SPACE;
continue;
case INQUOTE:
case ESCAPE:
current += s[i];
continue;
}
break;
default:
if (!addseps.empty() && addseps.find(s[i]) != string::npos) {
switch (state) {
case ESCAPE:
state = INQUOTE;
break;
case INQUOTE:
break;
case SPACE:
tokens.insert(tokens.end(), string(1, s[i]));
continue;
case TOKEN:
tokens.insert(tokens.end(), current);
current.erase();
tokens.insert(tokens.end(), string(1, s[i]));
state = SPACE;
continue;
}
} else switch (state) {
case ESCAPE:
state = INQUOTE;
break;
case SPACE:
state = TOKEN;
break;
case TOKEN:
case INQUOTE:
break;
}
current += s[i];
}
}
switch (state) {
case SPACE:
break;
case TOKEN:
tokens.insert(tokens.end(), current);
break;
case INQUOTE:
case ESCAPE:
return false;
}
return true;
}
template bool stringToStrings<list<string> >(const string&,
list<string>&, const string&);
template bool stringToStrings<vector<string> >(const string&,
vector<string>&, const string&);
template bool stringToStrings<set<string> >(const string&,
set<string>&, const string&);
template bool stringToStrings<std::unordered_set<string> >
(const string&, std::unordered_set<string>&, const string&);
template <class T> void stringsToString(const T& tokens, string& s)
{
for (typename T::const_iterator it = tokens.begin();
it != tokens.end(); it++) {
bool hasblanks = false;
if (it->find_first_of(" \t\n") != string::npos) {
hasblanks = true;
}
if (it != tokens.begin()) {
s.append(1, ' ');
}
if (hasblanks) {
s.append(1, '"');
}
for (unsigned int i = 0; i < it->length(); i++) {
char car = it->at(i);
if (car == '"') {
s.append(1, '\\');
s.append(1, car);
} else {
s.append(1, car);
}
}
if (hasblanks) {
s.append(1, '"');
}
}
}
template void stringsToString<list<string> >(const list<string>&, string&);
template void stringsToString<vector<string> >(const vector<string>&, string&);
template void stringsToString<set<string> >(const set<string>&, string&);
template void stringsToString<unordered_set<string> >(const unordered_set<string>&, string&);
template <class T> string stringsToString(const T& tokens)
{
string out;
stringsToString<T>(tokens, out);
return out;
}
template string stringsToString<list<string> >(const list<string>&);
template string stringsToString<vector<string> >(const vector<string>&);
template string stringsToString<set<string> >(const set<string>&);
template string stringsToString<unordered_set<string> >(const unordered_set<string>&);
template <class T> void stringsToCSV(const T& tokens, string& s,
char sep)
{
s.erase();
for (typename T::const_iterator it = tokens.begin();
it != tokens.end(); it++) {
bool needquotes = false;
if (it->empty() ||
it->find_first_of(string(1, sep) + "\"\n") != string::npos) {
needquotes = true;
}
if (it != tokens.begin()) {
s.append(1, sep);
}
if (needquotes) {
s.append(1, '"');
}
for (unsigned int i = 0; i < it->length(); i++) {
char car = it->at(i);
if (car == '"') {
s.append(2, '"');
} else {
s.append(1, car);
}
}
if (needquotes) {
s.append(1, '"');
}
}
}
template void stringsToCSV<list<string> >(const list<string>&, string&, char);
template void stringsToCSV<vector<string> >(const vector<string>&, string&,
char);
void stringToTokens(const string& str, vector<string>& tokens,
const string& delims, bool skipinit)
{
string::size_type startPos = 0, pos;
// Skip initial delims, return empty if this eats all.
if (skipinit &&
(startPos = str.find_first_not_of(delims, 0)) == string::npos) {
return;
}
while (startPos < str.size()) {
// Find next delimiter or end of string (end of token)
pos = str.find_first_of(delims, startPos);
// Add token to the vector and adjust start
if (pos == string::npos) {
tokens.push_back(str.substr(startPos));
break;
} else if (pos == startPos) {
// Dont' push empty tokens after first
if (tokens.empty()) {
tokens.push_back(string());
}
startPos = ++pos;
} else {
tokens.push_back(str.substr(startPos, pos - startPos));
startPos = ++pos;
}
}
}
bool stringToBool(const string& s)
{
if (s.empty()) {
return false;
}
if (isdigit(s[0])) {
int val = atoi(s.c_str());
return val ? true : false;
}
if (s.find_first_of("yYtT") == 0) {
return true;
}
return false;
}
void trimstring(string& s, const char *ws)
{
rtrimstring(s, ws);
ltrimstring(s, ws);
}
void rtrimstring(string& s, const char *ws)
{
string::size_type pos = s.find_last_not_of(ws);
if (pos != string::npos && pos != s.length() - 1) {
s.replace(pos + 1, string::npos, string());
}
}
void ltrimstring(string& s, const char *ws)
{
string::size_type pos = s.find_first_not_of(ws);
if (pos == string::npos) {
s.clear();
return;
}
s.replace(0, pos, string());
}
// Remove some chars and replace them with spaces
string neutchars(const string& str, const string& chars)
{
string out;
neutchars(str, out, chars);
return out;
}
void neutchars(const string& str, string& out, const string& chars)
{
string::size_type startPos, pos;
for (pos = 0;;) {
// Skip initial chars, break if this eats all.
if ((startPos = str.find_first_not_of(chars, pos)) == string::npos) {
break;
}
// Find next delimiter or end of string (end of token)
pos = str.find_first_of(chars, startPos);
// Add token to the output. Note: token cant be empty here
if (pos == string::npos) {
out += str.substr(startPos);
} else {
out += str.substr(startPos, pos - startPos) + " ";
}
}
}
/* Truncate a string to a given maxlength, avoiding cutting off midword
* if reasonably possible. Note: we could also use textsplit, stopping when
* we have enough, this would be cleanly utf8-aware but would remove
* punctuation */
static const string cstr_SEPAR = " \t\n\r-:.;,/[]{}";
string truncate_to_word(const string& input, string::size_type maxlen)
{
string output;
if (input.length() <= maxlen) {
output = input;
} else {
output = input.substr(0, maxlen);
string::size_type space = output.find_last_of(cstr_SEPAR);
// Original version only truncated at space if space was found after
// maxlen/2. But we HAVE to truncate at space, else we'd need to do
// utf8 stuff to avoid truncating at multibyte char. In any case,
// not finding space means that the text probably has no value.
// Except probably for Asian languages, so we may want to fix this
// one day
if (space == string::npos) {
output.erase();
} else {
output.erase(space);
}
}
return output;
}
// Escape things that would look like markup
string escapeHtml(const string& in)
{
string out;
for (string::size_type pos = 0; pos < in.length(); pos++) {
switch(in.at(pos)) {
case '<': out += "<"; break;
case '>': out += ">"; break;
case '&': out += "&"; break;
case '"': out += """; break;
default: out += in.at(pos); break;
}
}
return out;
}
string escapeShell(const string& in)
{
string out;
out += "\"";
for (string::size_type pos = 0; pos < in.length(); pos++) {
switch (in.at(pos)) {
case '$':
out += "\\$";
break;
case '`':
out += "\\`";
break;
case '"':
out += "\\\"";
break;
case '\n':
out += "\\\n";
break;
case '\\':
out += "\\\\";
break;
default:
out += in.at(pos);
}
}
out += "\"";
return out;
}
// Escape value to be suitable as C++ source double-quoted string (for
// generating a c++ program
string makeCString(const string& in)
{
string out;
out += "\"";
for (string::size_type pos = 0; pos < in.length(); pos++) {
switch (in.at(pos)) {
case '"':
out += "\\\"";
break;
case '\n':
out += "\\n";
break;
case '\r':
out += "\\r";
break;
case '\\':
out += "\\\\";
break;
default:
out += in.at(pos);
}
}
out += "\"";
return out;
}
// Substitute printf-like percent cmds inside a string
bool pcSubst(const string& in, string& out, const map<char, string>& subs)
{
string::const_iterator it;
for (it = in.begin(); it != in.end(); it++) {
if (*it == '%') {
if (++it == in.end()) {
out += '%';
break;
}
if (*it == '%') {
out += '%';
continue;
}
map<char, string>::const_iterator tr;
if ((tr = subs.find(*it)) != subs.end()) {
out += tr->second;
} else {
// We used to do "out += *it;" here but this does not make
// sense
}
} else {
out += *it;
}
}
return true;
}
bool pcSubst(const string& in, string& out, const map<string, string>& subs)
{
out.erase();
string::size_type i;
for (i = 0; i < in.size(); i++) {
if (in[i] == '%') {
if (++i == in.size()) {
out += '%';
break;
}
if (in[i] == '%') {
out += '%';
continue;
}
string key = "";
if (in[i] == '(') {
if (++i == in.size()) {
out += string("%(");
break;
}
string::size_type j = in.find_first_of(")", i);
if (j == string::npos) {
// ??concatenate remaining part and stop
out += in.substr(i - 2);
break;
}
key = in.substr(i, j - i);
i = j;
} else {
key = in[i];
}
map<string, string>::const_iterator tr;
if ((tr = subs.find(key)) != subs.end()) {
out += tr->second;
} else {
// Substitute to nothing, that's the reasonable thing to do
// instead of keeping the %(key)
// out += key.size()==1? key : string("(") + key + string(")");
}
} else {
out += in[i];
}
}
return true;
}
inline static int ulltorbuf(uint64_t val, char *rbuf)
{
int idx;
for (idx = 0; val; idx++) {
rbuf[idx] = '0' + val % 10;
val /= 10;
}
while (val);
rbuf[idx] = 0;
return idx;
}
inline static void ullcopyreverse(const char *rbuf, string& buf, int idx)
{
buf.reserve(idx + 1);
for (int i = idx - 1; i >= 0; i--) {
buf.push_back(rbuf[i]);
}
}
void ulltodecstr(uint64_t val, string& buf)
{
buf.clear();
if (val == 0) {
buf = "0";
return;
}
char rbuf[30];
int idx = ulltorbuf(val, rbuf);
ullcopyreverse(rbuf, buf, idx);
return;
}
void lltodecstr(int64_t val, string& buf)
{
buf.clear();
if (val == 0) {
buf = "0";
return;
}
bool neg = val < 0;
if (neg) {
val = -val;
}
char rbuf[30];
int idx = ulltorbuf(val, rbuf);
if (neg) {
rbuf[idx++] = '-';
}
rbuf[idx] = 0;
ullcopyreverse(rbuf, buf, idx);
return;
}
string lltodecstr(int64_t val)
{
string buf;
lltodecstr(val, buf);
return buf;
}
string ulltodecstr(uint64_t val)
{
string buf;
ulltodecstr(val, buf);
return buf;
}
// Convert byte count into unit (KB/MB...) appropriate for display
string displayableBytes(int64_t size)
{
const char *unit;
double roundable = 0;
if (size < 1000) {
unit = " B ";
roundable = double(size);
} else if (size < 1E6) {
unit = " KB ";
roundable = double(size) / 1E3;
} else if (size < 1E9) {
unit = " MB ";
roundable = double(size) / 1E6;
} else {
unit = " GB ";
roundable = double(size) / 1E9;
}
size = off_t(round(roundable));
return lltodecstr(size).append(unit);
}
string breakIntoLines(const string& in, unsigned int ll,
unsigned int maxlines)
{
string query = in;
string oq;
unsigned int nlines = 0;
while (query.length() > 0) {
string ss = query.substr(0, ll);
if (ss.length() == ll) {
string::size_type pos = ss.find_last_of(" ");
if (pos == string::npos) {
pos = query.find_first_of(" ");
if (pos != string::npos) {
ss = query.substr(0, pos + 1);
} else {
ss = query;
}
} else {
ss = ss.substr(0, pos + 1);
}
}
// This cant happen, but anyway. Be very sure to avoid an infinite loop
if (ss.length() == 0) {
oq = query;
break;
}
oq += ss + "\n";
if (nlines++ >= maxlines) {
oq += " ... \n";
break;
}
query = query.substr(ss.length());
}
return oq;
}
// Date is Y[-M[-D]]
static bool parsedate(vector<string>::const_iterator& it,
vector<string>::const_iterator end, DateInterval *dip)
{
dip->y1 = dip->m1 = dip->d1 = dip->y2 = dip->m2 = dip->d2 = 0;
if (it->length() > 4 || !it->length() ||
it->find_first_not_of("0123456789") != string::npos) {
return false;
}
if (it == end || sscanf(it++->c_str(), "%d", &dip->y1) != 1) {
return false;
}
if (it == end || *it == "/") {
return true;
}
if (*it++ != "-") {
return false;
}
if (it->length() > 2 || !it->length() ||
it->find_first_not_of("0123456789") != string::npos) {
return false;
}
if (it == end || sscanf(it++->c_str(), "%d", &dip->m1) != 1) {
return false;
}
if (it == end || *it == "/") {
return true;
}
if (*it++ != "-") {
return false;
}
if (it->length() > 2 || !it->length() ||
it->find_first_not_of("0123456789") != string::npos) {
return false;
}
if (it == end || sscanf(it++->c_str(), "%d", &dip->d1) != 1) {
return false;
}
return true;
}
// Called with the 'P' already processed. Period ends at end of string
// or at '/'. We dont' do a lot effort at validation and will happily
// accept 10Y1Y4Y (the last wins)
static bool parseperiod(vector<string>::const_iterator& it,
vector<string>::const_iterator end, DateInterval *dip)
{
dip->y1 = dip->m1 = dip->d1 = dip->y2 = dip->m2 = dip->d2 = 0;
while (it != end) {
int value;
if (it->find_first_not_of("0123456789") != string::npos) {
return false;
}
if (sscanf(it++->c_str(), "%d", &value) != 1) {
return false;
}
if (it == end || it->empty()) {
return false;
}
switch (it->at(0)) {
case 'Y':
case 'y':
dip->y1 = value;
break;
case 'M':
case 'm':
dip->m1 = value;
break;
case 'D':
case 'd':
dip->d1 = value;
break;
default:
return false;
}
it++;
if (it == end) {
return true;
}
if (*it == "/") {
return true;
}
}
return true;
}
#ifdef _WIN32
int setenv(const char *name, const char *value, int overwrite)
{
if (!overwrite) {
const char *cp = getenv(name);
if (cp) {
return -1;
}
}
return _putenv_s(name, value);
}
void unsetenv(const char *name)
{
_putenv_s(name, "");
}
#endif
time_t portable_timegm(struct tm *tm)
{
time_t ret;
char *tz;
tz = getenv("TZ");
setenv("TZ", "", 1);
tzset();
ret = mktime(tm);
if (tz) {
setenv("TZ", tz, 1);
} else {
unsetenv("TZ");
}
tzset();
return ret;
}
#if 0
static void cerrdip(const string& s, DateInterval *dip)
{
cerr << s << dip->y1 << "-" << dip->m1 << "-" << dip->d1 << "/"
<< dip->y2 << "-" << dip->m2 << "-" << dip->d2
<< endl;
}
#endif
// Compute date + period. Won't work out of the unix era.
// or pre-1970 dates. Just convert everything to unixtime and
// seconds (with average durations for months/years), add and convert
// back
static bool addperiod(DateInterval *dp, DateInterval *pp)
{
struct tm tm;
// Create a struct tm with possibly non normalized fields and let
// timegm sort it out
memset(&tm, 0, sizeof(tm));
tm.tm_year = dp->y1 - 1900 + pp->y1;
tm.tm_mon = dp->m1 + pp->m1 - 1;
tm.tm_mday = dp->d1 + pp->d1;
time_t tres = mktime(&tm);
localtime_r(&tres, &tm);
dp->y1 = tm.tm_year + 1900;
dp->m1 = tm.tm_mon + 1;
dp->d1 = tm.tm_mday;
//cerrdip("Addperiod return", dp);
return true;
}
int monthdays(int mon, int year)
{
switch (mon) {
// We are returning a few too many 29 days februaries, no problem
case 2:
return (year % 4) == 0 ? 29 : 28;
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
return 31;
default:
return 30;
}
}
bool parsedateinterval(const string& s, DateInterval *dip)
{
vector<string> vs;
dip->y1 = dip->m1 = dip->d1 = dip->y2 = dip->m2 = dip->d2 = 0;
DateInterval p1, p2, d1, d2;
p1 = p2 = d1 = d2 = *dip;
bool hasp1 = false, hasp2 = false, hasd1 = false, hasd2 = false,
hasslash = false;
if (!stringToStrings(s, vs, "PYMDpymd-/")) {
return false;
}
if (vs.empty()) {
return false;
}
vector<string>::const_iterator it = vs.begin();
if (*it == "P" || *it == "p") {
it++;
if (!parseperiod(it, vs.end(), &p1)) {
return false;
}
hasp1 = true;
//cerrdip("p1", &p1);
p1.y1 = -p1.y1;
p1.m1 = -p1.m1;
p1.d1 = -p1.d1;
} else if (*it == "/") {
hasslash = true;
goto secondelt;
} else {
if (!parsedate(it, vs.end(), &d1)) {
return false;
}
hasd1 = true;
}
// Got one element and/or /
secondelt:
if (it != vs.end()) {
if (*it != "/") {
return false;
}
hasslash = true;
it++;
if (it == vs.end()) {
// ok
} else if (*it == "P" || *it == "p") {
it++;
if (!parseperiod(it, vs.end(), &p2)) {
return false;
}
hasp2 = true;
} else {
if (!parsedate(it, vs.end(), &d2)) {
return false;
}
hasd2 = true;
}
}
// 2 periods dont' make sense
if (hasp1 && hasp2) {
return false;
}
// Nothing at all doesn't either
if (!hasp1 && !hasd1 && !hasp2 && !hasd2) {
return false;
}
// Empty part means today IF other part is period, else means
// forever (stays at 0)
time_t now = time(0);
struct tm *tmnow = gmtime(&now);
if ((!hasp1 && !hasd1) && hasp2) {
d1.y1 = 1900 + tmnow->tm_year;
d1.m1 = tmnow->tm_mon + 1;
d1.d1 = tmnow->tm_mday;
hasd1 = true;
} else if ((!hasp2 && !hasd2) && hasp1) {
d2.y1 = 1900 + tmnow->tm_year;
d2.m1 = tmnow->tm_mon + 1;
d2.d1 = tmnow->tm_mday;
hasd2 = true;
}
// Incomplete dates have different meanings depending if there is
// a period or not (actual or infinite indicated by a / + empty)
//
// If there is no explicit period, an incomplete date indicates a
// period of the size of the uncompleted elements. Ex: 1999
// actually means 1999/P12M
//
// If there is a period, the incomplete date should be extended
// to the beginning or end of the unspecified portion. Ex: 1999/
// means 1999-01-01/ and /1999 means /1999-12-31
if (hasd1) {
if (!(hasslash || hasp2)) {
if (d1.m1 == 0) {
p2.m1 = 12;
d1.m1 = 1;
d1.d1 = 1;
} else if (d1.d1 == 0) {
d1.d1 = 1;
p2.d1 = monthdays(d1.m1, d1.y1);
}
hasp2 = true;
} else {
if (d1.m1 == 0) {
d1.m1 = 1;
d1.d1 = 1;
} else if (d1.d1 == 0) {
d1.d1 = 1;
}
}
}
// if hasd2 is true we had a /
if (hasd2) {
if (d2.m1 == 0) {
d2.m1 = 12;
d2.d1 = 31;
} else if (d2.d1 == 0) {
d2.d1 = monthdays(d2.m1, d2.y1);
}
}
if (hasp1) {
// Compute d1
d1 = d2;
if (!addperiod(&d1, &p1)) {
return false;
}
} else if (hasp2) {
// Compute d2
d2 = d1;
if (!addperiod(&d2, &p2)) {
return false;
}
}
dip->y1 = d1.y1;
dip->m1 = d1.m1;
dip->d1 = d1.d1;
dip->y2 = d2.y1;
dip->m2 = d2.m1;
dip->d2 = d2.d1;
return true;
}
void catstrerror(string *reason, const char *what, int _errno)
{
if (!reason) {
return;
}
if (what) {
reason->append(what);
}
reason->append(": errno: ");
char nbuf[20];
sprintf(nbuf, "%d", _errno);
reason->append(nbuf);
reason->append(" : ");
#if defined(sun) || defined(_WIN32)
// Note: sun strerror is noted mt-safe ??
reason->append(strerror(_errno));
#else
#define ERRBUFSZ 200
char errbuf[ERRBUFSZ];
// There are 2 versions of strerror_r.
// - The GNU one returns a pointer to the message (maybe
// static storage or supplied buffer).
// - The POSIX one always stores in supplied buffer and
// returns 0 on success. As the possibility of error and
// error code are not specified, we're basically doomed
// cause we can't use a test on the 0 value to know if we
// were returned a pointer...
// Also couldn't find an easy way to disable the gnu version without
// changing the cxxflags globally, so forget it. Recent gnu lib versions
// normally default to the posix version.
// At worse we get no message at all here.
errbuf[0] = 0;
// We don't use ret, it's there to silence a cc warning
char *ret = (char *)strerror_r(_errno, errbuf, ERRBUFSZ);
(void)ret;
reason->append(errbuf);
#endif
}
static const char *vlang_to_code[] = {
"be", "cp1251",
"bg", "cp1251",
"cs", "iso-8859-2",
"el", "iso-8859-7",
"he", "iso-8859-8",
"hr", "iso-8859-2",
"hu", "iso-8859-2",
"ja", "eucjp",
"kk", "pt154",
"ko", "euckr",
"lt", "iso-8859-13",
"lv", "iso-8859-13",
"pl", "iso-8859-2",
"rs", "iso-8859-2",
"ro", "iso-8859-2",
"ru", "koi8-r",
"sk", "iso-8859-2",
"sl", "iso-8859-2",
"sr", "iso-8859-2",
"th", "iso-8859-11",
"tr", "iso-8859-9",
"uk", "koi8-u",
};
static const string cstr_cp1252("CP1252");
string langtocode(const string& lang)
{
static std::unordered_map<string, string> lang_to_code;
if (lang_to_code.empty()) {
for (unsigned int i = 0;
i < sizeof(vlang_to_code) / sizeof(char *); i += 2) {
lang_to_code[vlang_to_code[i]] = vlang_to_code[i + 1];
}
}
std::unordered_map<string, string>::const_iterator it =
lang_to_code.find(lang);
// Use cp1252 by default...
if (it == lang_to_code.end()) {
return cstr_cp1252;
}
return it->second;
}
string localelang()
{
const char *lang = getenv("LANG");
if (lang == 0 || *lang == 0 || !strcmp(lang, "C") ||
!strcmp(lang, "POSIX")) {
return "en";
}
string locale(lang);
string::size_type under = locale.find_first_of("_");
if (under == string::npos) {
return locale;
}
return locale.substr(0, under);
}
#ifdef USE_STD_REGEX
class SimpleRegexp::Internal {
public:
Internal(const string& exp, int flags, int nm)
: expr(exp,
basic_regex<char>::flag_type(regex_constants::extended |
((flags&SRE_ICASE) ? regex_constants::icase : 0) |
((flags&SRE_NOSUB) ? regex_constants::nosubs : 0)
)), ok(true), nmatch(nm) {
}
std::regex expr;
std::smatch res;
bool ok;
int nmatch;
};
bool SimpleRegexp::simpleMatch(const string& val) const
{
if (!ok())
return false;
return regex_match(val, m->res, m->expr);
}
string SimpleRegexp::getMatch(const string& val, int i) const
{
return m->res.str(i);
}
#else // -> !WIN32
class SimpleRegexp::Internal {
public:
Internal(const string& exp, int flags, int nm) : nmatch(nm) {
if (regcomp(&expr, exp.c_str(), REG_EXTENDED |
((flags&SRE_ICASE) ? REG_ICASE : 0) |
((flags&SRE_NOSUB) ? REG_NOSUB : 0)) == 0) {
ok = true;
} else {
ok = false;
}
matches.reserve(nmatch+1);
}
~Internal() {
regfree(&expr);
}
bool ok;
regex_t expr;
int nmatch;
vector<regmatch_t> matches;
};
bool SimpleRegexp::simpleMatch(const string& val) const
{
if (!ok())
return false;
if (regexec(&m->expr, val.c_str(), m->nmatch+1, &m->matches[0], 0) == 0) {
return true;
} else {
return false;
}
}
string SimpleRegexp::getMatch(const string& val, int i) const
{
if (i > m->nmatch) {
return string();
}
return val.substr(m->matches[i].rm_so,
m->matches[i].rm_eo - m->matches[i].rm_so);
}
#endif // win/notwinf
SimpleRegexp::SimpleRegexp(const string& exp, int flags, int nmatch)
: m(new Internal(exp, flags, nmatch))
{
}
SimpleRegexp::~SimpleRegexp()
{
delete m;
}
bool SimpleRegexp::ok() const
{
return m->ok;
}
bool SimpleRegexp::operator() (const string& val) const
{
return simpleMatch(val);
}
string flagsToString(const vector<CharFlags>& flags, unsigned int val)
{
const char *s;
string out;
for (auto& flag : flags) {
if ((val & flag.value) == flag.value) {
s = flag.yesname;
} else {
s = flag.noname;
}
if (s && *s) {
/* We have something to write */
if (out.length()) {
// If not first, add '|' separator
out.append("|");
}
out.append(s);
}
}
return out;
}
string valToString(const vector<CharFlags>& flags, unsigned int val)
{
string out;
for (auto& flag : flags) {
if (flag.value == val) {
out = flag.yesname;
return out;
}
}
{
char mybuf[100];
sprintf(mybuf, "Unknown Value 0x%x", val);
out = mybuf;
}
return out;
}
unsigned int stringToFlags(const vector<CharFlags>& flags,
const string& input, const char *sep)
{
unsigned int out = 0;
vector<string> toks;
stringToTokens(input, toks, sep);
for (auto& tok: toks) {
trimstring(tok);
for (auto& flag : flags) {
if (!tok.compare(flag.yesname)) {
/* Note: we don't break: the same name could conceivably
set several flags. */
out |= flag.value;
}
}
}
return out;
}
// Initialization for static stuff to be called from main thread before going
// multiple
void smallut_init_mt()
{
// Init langtocode() static table
langtocode("");
}