#include <apt-pkg/fileutl.h>
#include <apt-pkg/error.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string>
+#include <vector>
#include <ctype.h>
#include <string.h>
#include <sstream>
#include <iconv.h>
#include <apti18n.h>
-
-using namespace std;
/*}}}*/
+using namespace std;
+
+// Strip - Remove white space from the front and back of a string /*{{{*/
+// ---------------------------------------------------------------------
+namespace APT {
+ namespace String {
+std::string Strip(const std::string &str)
+{
+ // ensure we have at least one character
+ if (str.empty() == true)
+ return str;
+
+ char const * const s = str.c_str();
+ size_t start = 0;
+ for (; isspace(s[start]) != 0; ++start)
+ ; // find the first not-space
+
+ // string contains only whitespaces
+ if (s[start] == '\0')
+ return "";
+
+ size_t end = str.length() - 1;
+ for (; isspace(s[end]) != 0; --end)
+ ; // find the last not-space
+
+ return str.substr(start, end - start + 1);
+}
+
+bool Endswith(const std::string &s, const std::string &end)
+{
+ if (end.size() > s.size())
+ return false;
+ return (s.substr(s.size() - end.size(), s.size()) == end);
+}
+
+bool Startswith(const std::string &s, const std::string &start)
+{
+ if (start.size() > s.size())
+ return false;
+ return (s.substr(0, start.size()) == start);
+}
+}
+}
+ /*}}}*/
// UTF8ToCodeset - Convert some UTF-8 string for some codeset /*{{{*/
// ---------------------------------------------------------------------
/* This is handy to use before display some information for enduser */
End++;
*End = 0;
return String;
-};
+}
/*}}}*/
// strtabexpand - Converts tabs into 8 spaces /*{{{*/
// ---------------------------------------------------------------------
/*}}}*/
// SubstVar - Substitute a string for another string /*{{{*/
// ---------------------------------------------------------------------
-/* This replaces all occurances of Subst with Contents in Str. */
+/* This replaces all occurrences of Subst with Contents in Str. */
string SubstVar(const string &Str,const string &Subst,const string &Contents)
{
+ if (Subst.empty() == true)
+ return Str;
+
string::size_type Pos = 0;
string::size_type OldPos = 0;
string Temp;
-
- while (OldPos < Str.length() &&
+
+ while (OldPos < Str.length() &&
(Pos = Str.find(Subst,OldPos)) != string::npos)
{
- Temp += string(Str,OldPos,Pos) + Contents;
- OldPos = Pos + Subst.length();
+ if (OldPos != Pos)
+ Temp.append(Str, OldPos, Pos - OldPos);
+ if (Contents.empty() == false)
+ Temp.append(Contents);
+ OldPos = Pos + Subst.length();
}
-
+
if (OldPos == 0)
return Str;
-
+
+ if (OldPos >= Str.length())
+ return Temp;
return Temp + string(Str,OldPos);
}
-
string SubstVar(string Str,const struct SubstVar *Vars)
{
for (; Vars->Subst != 0; Vars++)
then returns the result. Several varients on true/false are checked. */
int StringToBool(const string &Text,int Default)
{
- char *End;
- int Res = strtol(Text.c_str(),&End,0);
- if (End != Text.c_str() && Res >= 0 && Res <= 1)
+ char *ParseEnd;
+ int Res = strtol(Text.c_str(),&ParseEnd,0);
+ // ensure that the entire string was converted by strtol to avoid
+ // failures on "apt-cache show -a 0ad" where the "0" is converted
+ const char *TextEnd = Text.c_str()+Text.size();
+ if (ParseEnd == TextEnd && Res >= 0 && Res <= 1)
return Res;
// Check for positives
/*}}}*/
// StrToTime - Converts a string into a time_t /*{{{*/
// ---------------------------------------------------------------------
-/* This handles all 3 populare time formats including RFC 1123, RFC 1036
+/* This handles all 3 popular time formats including RFC 1123, RFC 1036
and the C library asctime format. It requires the GNU library function
'timegm' to convert a struct tm in UTC to a time_t. For some bizzar
reason the C library does not provide any such function :< This also
// ---------------------------------------------------------------------
/* This is used in decoding the 256bit encoded fixed length fields in
tar files */
-bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len)
+bool Base256ToNum(const char *Str,unsigned long long &Res,unsigned int Len)
{
if ((Str[0] & 0x80) == 0)
return false;
}
}
/*}}}*/
+// Base256ToNum - Convert a fixed length binary to a number /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used in decoding the 256bit encoded fixed length fields in
+ tar files */
+bool Base256ToNum(const char *Str,unsigned long &Res,unsigned int Len)
+{
+ unsigned long long Num;
+ bool rc;
+
+ rc = Base256ToNum(Str, Num, Len);
+ Res = Num;
+ if (Res != Num)
+ return false;
+
+ return rc;
+}
+ /*}}}*/
// HexDigit - Convert a hex character into an integer /*{{{*/
// ---------------------------------------------------------------------
/* Helper for Hex2Num */
also, but the advantage is that we have an iteratable vector */
vector<string> VectorizeString(string const &haystack, char const &split)
{
+ vector<string> exploded;
+ if (haystack.empty() == true)
+ return exploded;
string::const_iterator start = haystack.begin();
string::const_iterator end = start;
- vector<string> exploded;
do {
for (; end != haystack.end() && *end != split; ++end);
exploded.push_back(string(start, end));
return exploded;
}
/*}}}*/
+// StringSplit - split a string into a string vector by token /*{{{*/
+// ---------------------------------------------------------------------
+/* See header for details.
+ */
+vector<string> StringSplit(std::string const &s, std::string const &sep,
+ unsigned int maxsplit)
+{
+ vector<string> split;
+ size_t start, pos;
+
+ // no seperator given, this is bogus
+ if(sep.size() == 0)
+ return split;
+
+ start = pos = 0;
+ while (pos != string::npos)
+ {
+ pos = s.find(sep, start);
+ split.push_back(s.substr(start, pos-start));
+
+ // if maxsplit is reached, the remaining string is the last item
+ if(split.size() >= maxsplit)
+ {
+ split[split.size()-1] = s.substr(start);
+ break;
+ }
+ start = pos+sep.size();
+ }
+ return split;
+}
+ /*}}}*/
// RegexChoice - Simple regex list/list matcher /*{{{*/
// ---------------------------------------------------------------------
/* */
R->Hit = false;
unsigned long Hits = 0;
- for (; ListBegin != ListEnd; ListBegin++)
+ for (; ListBegin < ListEnd; ++ListBegin)
{
// Check if the name is a regex
const char *I;
// tolower_ascii - tolower() function that ignores the locale /*{{{*/
// ---------------------------------------------------------------------
/* This little function is the most called method we have and tries
- therefore to do the absolut minimum - and is noteable faster than
+ therefore to do the absolut minimum - and is notable faster than
standard tolower/toupper and as a bonus avoids problems with different
locales - we only operate on ascii chars anyway. */
int tolower_ascii(int const c)
}
/*}}}*/
-// CheckDomainList - See if Host is in a , seperate list /*{{{*/
+// CheckDomainList - See if Host is in a , separate list /*{{{*/
// ---------------------------------------------------------------------
-/* The domain list is a comma seperate list of domains that are suffix
+/* The domain list is a comma separate list of domains that are suffix
matched against the argument */
bool CheckDomainList(const string &Host,const string &List)
{
projects / apt.git / blobdiff