diff options
Diffstat (limited to 'apt-pkg/contrib/strutl.cc')
| -rw-r--r-- | apt-pkg/contrib/strutl.cc | 163 |
1 files changed, 153 insertions, 10 deletions
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc index f8a3f8e2b..c1a1cb4db 100644 --- a/apt-pkg/contrib/strutl.cc +++ b/apt-pkg/contrib/strutl.cc @@ -1,12 +1,12 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: strutl.cc,v 1.34 2000/01/16 05:36:17 jgg Exp $ +// $Id: strutl.cc,v 1.35 2001/02/20 07:03:17 jgg Exp $ /* ###################################################################### - String Util - Some usefull string functions. + String Util - Some useful string functions. - These have been collected from here and there to do all sorts of usefull - things to strings. They are usefull in file parsers, URI handlers and + These have been collected from here and there to do all sorts of useful + things to strings. They are useful in file parsers, URI handlers and especially in APT methods. This source is placed in the Public Domain, do with it what you will @@ -21,12 +21,17 @@ #include <apt-pkg/strutl.h> #include <apt-pkg/fileutl.h> +#include <apt-pkg/error.h> +#include <apti18n.h> + #include <ctype.h> #include <string.h> #include <stdio.h> #include <unistd.h> +#include <regex.h> #include <errno.h> +#include <stdarg.h> /*}}}*/ // strstrip - Remove white space from the front and back of a string /*{{{*/ @@ -147,9 +152,9 @@ bool ParseQuoteWord(const char *&String,string &Res) /*}}}*/ // ParseCWord - Parses a string like a C "" expression /*{{{*/ // --------------------------------------------------------------------- -/* This expects a series of space seperated strings enclosed in ""'s. +/* This expects a series of space separated strings enclosed in ""'s. It concatenates the ""'s into a single string. */ -bool ParseCWord(const char *String,string &Res) +bool ParseCWord(const char *&String,string &Res) { // Skip leading whitespace const char *C = String; @@ -180,9 +185,10 @@ bool ParseCWord(const char *String,string &Res) if (isspace(*C) == 0) return false; *Buf++ = ' '; - } + } *Buf = 0; Res = Buffer; + String = C; return true; } /*}}}*/ @@ -325,6 +331,13 @@ string SubstVar(string Str,string Subst,string Contents) return Temp + string(Str,OldPos); } + +string SubstVar(string Str,const struct SubstVar *Vars) +{ + for (; Vars->Subst != 0; Vars++) + Str = SubstVar(Str,Vars->Subst,*Vars->Contents); + return Str; +} /*}}}*/ // URItoFileName - Convert the uri into a unique file name /*{{{*/ // --------------------------------------------------------------------- @@ -548,9 +561,11 @@ bool ReadMessages(int Fd, vector<string> &List) return false; // No data - if (Res <= 0) + if (Res < 0 && errno == EAGAIN) return true; - + if (Res < 0) + return false; + End += Res; // Look for the end of the message @@ -749,6 +764,121 @@ bool Hex2Num(const char *Start,const char *End,unsigned char *Num, return true; } /*}}}*/ +// TokSplitString - Split a string up by a given token /*{{{*/ +// --------------------------------------------------------------------- +/* This is intended to be a faster splitter, it does not use dynamic + memories. Input is changed to insert nulls at each token location. */ +bool TokSplitString(char Tok,char *Input,char **List, + unsigned long ListMax) +{ + // Strip any leading spaces + char *Start = Input; + char *Stop = Start + strlen(Start); + for (; *Start != 0 && isspace(*Start) != 0; Start++); + + unsigned long Count = 0; + char *Pos = Start; + while (Pos != Stop) + { + // Skip to the next Token + for (; Pos != Stop && *Pos != Tok; Pos++); + + // Back remove spaces + char *End = Pos; + for (; End > Start && (End[-1] == Tok || isspace(End[-1]) != 0); End--); + *End = 0; + + List[Count++] = Start; + if (Count >= ListMax) + { + List[Count-1] = 0; + return false; + } + + // Advance pos + for (; Pos != Stop && (*Pos == Tok || isspace(*Pos) != 0 || *Pos == 0); Pos++); + Start = Pos; + } + + List[Count] = 0; + return true; +} + /*}}}*/ +// RegexChoice - Simple regex list/list matcher /*{{{*/ +// --------------------------------------------------------------------- +/* */ +unsigned long RegexChoice(RxChoiceList *Rxs,const char **ListBegin, + const char **ListEnd) +{ + for (RxChoiceList *R = Rxs; R->Str != 0; R++) + R->Hit = false; + + unsigned long Hits = 0; + for (; ListBegin != ListEnd; ListBegin++) + { + // Check if the name is a regex + const char *I; + bool Regex = true; + for (I = *ListBegin; *I != 0; I++) + if (*I == '.' || *I == '?' || *I == '*' || *I == '|') + break; + if (*I == 0) + Regex = false; + + // Compile the regex pattern + regex_t Pattern; + if (Regex == true) + if (regcomp(&Pattern,*ListBegin,REG_EXTENDED | REG_ICASE | + REG_NOSUB) != 0) + Regex = false; + + // Search the list + bool Done = false; + for (RxChoiceList *R = Rxs; R->Str != 0; R++) + { + if (R->Str[0] == 0) + continue; + + if (strcasecmp(R->Str,*ListBegin) != 0) + { + if (Regex == false) + continue; + if (regexec(&Pattern,R->Str,0,0,0) != 0) + continue; + } + Done = true; + + if (R->Hit == false) + Hits++; + + R->Hit = true; + } + + if (Regex == true) + regfree(&Pattern); + + if (Done == false) + _error->Warning(_("Selection %s not found"),*ListBegin); + } + + return Hits; +} + /*}}}*/ +// ioprintf - C format string outputter to C++ iostreams /*{{{*/ +// --------------------------------------------------------------------- +/* This is used to make the internationalization strinc easier to translate + and to allow reordering of parameters */ +void ioprintf(ostream &out,const char *format,...) +{ + va_list args; + va_start(args,format); + + // sprintf the description + char S[400]; + vsnprintf(S,sizeof(S),format,args); + out << S; +} + /*}}}*/ // URI::CopyFrom - Copy from an object /*{{{*/ // --------------------------------------------------------------------- @@ -757,7 +887,7 @@ void URI::CopyFrom(string U) { string::const_iterator I = U.begin(); - // Locate the first colon, this seperates the scheme + // Locate the first colon, this separates the scheme for (; I < U.end() && *I != ':' ; I++); string::const_iterator FirstColon = I; @@ -912,3 +1042,16 @@ URI::operator string() return Res; } /*}}}*/ +// URI::SiteOnly - Return the schema and site for the URI /*{{{*/ +// --------------------------------------------------------------------- +/* */ +string URI::SiteOnly(string URI) +{ + ::URI U(URI); + U.User = string(); + U.Password = string(); + U.Path = string(); + U.Port = 0; + return U; +} + /*}}}*/ |