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-rw-r--r--apt-pkg/deb/deblistparser.cc116
-rw-r--r--apt-pkg/deb/deblistparser.h19
2 files changed, 90 insertions, 45 deletions
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 874a94e24..6ab0d0393 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -34,6 +34,7 @@
/*}}}*/
using std::string;
+using APT::StringView;
static const debListParser::WordList PrioList[] = {
{"required",pkgCache::State::Required},
@@ -57,7 +58,7 @@ debListParser::debListParser(FileFd *File) :
// ---------------------------------------------------------------------
/* This is to return the name of the package this section describes */
string debListParser::Package() {
- string Result = Section.FindS("Package");
+ string Result = Section.Find("Package").to_string();
// Normalize mixed case package names to lower case, like dpkg does
// See Bug#807012 for details
@@ -72,15 +73,15 @@ string debListParser::Package() {
// ---------------------------------------------------------------------
/* This will return the Architecture of the package this section describes */
string debListParser::Architecture() {
- std::string const Arch = Section.FindS("Architecture");
- return Arch.empty() ? "none" : Arch;
+ auto const Arch = Section.Find("Architecture");
+ return Arch.empty() ? "none" : Arch.to_string();
}
/*}}}*/
// ListParser::ArchitectureAll /*{{{*/
// ---------------------------------------------------------------------
/* */
bool debListParser::ArchitectureAll() {
- return Section.FindS("Architecture") == "all";
+ return Section.Find("Architecture") == "all";
}
/*}}}*/
// ListParser::Version - Return the version string /*{{{*/
@@ -90,13 +91,13 @@ bool debListParser::ArchitectureAll() {
entry is assumed to only describe package properties */
string debListParser::Version()
{
- return Section.FindS("Version");
+ return Section.Find("Version").to_string();
}
/*}}}*/
unsigned char debListParser::ParseMultiArch(bool const showErrors) /*{{{*/
{
unsigned char MA;
- string const MultiArch = Section.FindS("Multi-Arch");
+ auto const MultiArch = Section.Find("Multi-Arch");
if (MultiArch.empty() == true || MultiArch == "no")
MA = pkgCache::Version::No;
else if (MultiArch == "same") {
@@ -118,7 +119,7 @@ unsigned char debListParser::ParseMultiArch(bool const showErrors) /*{{{*/
{
if (showErrors == true)
_error->Warning("Unknown Multi-Arch type '%s' for package '%s'",
- MultiArch.c_str(), Section.FindS("Package").c_str());
+ MultiArch.to_string().c_str(), Section.FindS("Package").c_str());
MA = pkgCache::Version::No;
}
@@ -204,7 +205,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
// Priority
if (Section.Find("Priority",Start,Stop) == true)
{
- if (GrabWord(string(Start,Stop-Start),PrioList,Ver->Priority) == false)
+ if (GrabWord(StringView(Start,Stop-Start),PrioList,Ver->Priority) == false)
Ver->Priority = pkgCache::State::Extra;
}
@@ -241,10 +242,15 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
only describe package properties */
string debListParser::Description(std::string const &lang)
{
+ return Description(StringView(lang)).to_string();
+}
+
+StringView debListParser::Description(StringView lang)
+{
if (lang.empty())
- return Section.FindS("Description");
+ return Section.Find("Description");
else
- return Section.FindS(string("Description-").append(lang).c_str());
+ return Section.Find(string("Description-").append(lang.data(), lang.size()));
}
/*}}}*/
// ListParser::AvailableDescriptionLanguages /*{{{*/
@@ -271,15 +277,16 @@ std::vector<std::string> debListParser::AvailableDescriptionLanguages()
*/
MD5SumValue debListParser::Description_md5()
{
- string const value = Section.FindS("Description-md5");
+ auto const value = Section.Find("Description-md5");
if (value.empty() == true)
{
- std::string const desc = Description("") + "\n";
+ StringView desc = Description(StringView("", 0));
if (desc == "\n")
return MD5SumValue();
MD5Summation md5;
- md5.Add(desc.c_str());
+ md5.Add(desc.data(), desc.size());
+ md5.Add("\n");
return md5.Result();
}
else if (likely(value.size() == 32))
@@ -288,10 +295,10 @@ MD5SumValue debListParser::Description_md5()
if (sumvalue.Set(value))
return sumvalue;
- _error->Error("Malformed Description-md5 line; includes invalid character '%s'", value.c_str());
+ _error->Error("Malformed Description-md5 line; includes invalid character '%.*s'", (int)value.length(), value.data());
return MD5SumValue();
}
- _error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%s'", (int)value.size(), value.c_str());
+ _error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%.*s'", (int)value.size(), (int)value.length(), value.data());
return MD5SumValue();
}
/*}}}*/
@@ -332,21 +339,21 @@ bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
/* */
unsigned short debListParser::VersionHash()
{
- const char *Sections[] ={"Installed-Size",
+ static const StringView Sections[] ={"Installed-Size",
"Depends",
"Pre-Depends",
// "Suggests",
// "Recommends",
"Conflicts",
"Breaks",
- "Replaces",0};
+ "Replaces"};
unsigned long Result = INIT_FCS;
char S[1024];
- for (const char * const *I = Sections; *I != 0; ++I)
+ for (StringView I : Sections)
{
const char *Start;
const char *End;
- if (Section.Find(*I,Start,End) == false || End - Start >= (signed)sizeof(S))
+ if (Section.Find(I,Start,End) == false || End - Start >= (signed)sizeof(S))
continue;
/* Strip out any spaces from the text, this undoes dpkgs reformatting
@@ -410,7 +417,7 @@ bool debStatusListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
{"deinstall",pkgCache::State::DeInstall},
{"purge",pkgCache::State::Purge},
{NULL, 0}};
- if (GrabWord(string(Start,I-Start),WantList,Pkg->SelectedState) == false)
+ if (GrabWord(StringView(Start,I-Start),WantList,Pkg->SelectedState) == false)
return _error->Error("Malformed 1st word in the Status line");
// Isloate the next word
@@ -426,7 +433,7 @@ bool debStatusListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
{"hold",pkgCache::State::HoldInst},
{"hold-reinstreq",pkgCache::State::HoldReInstReq},
{NULL, 0}};
- if (GrabWord(string(Start,I-Start),FlagList,Pkg->InstState) == false)
+ if (GrabWord(StringView(Start,I-Start),FlagList,Pkg->InstState) == false)
return _error->Error("Malformed 2nd word in the Status line");
// Isloate the last word
@@ -446,7 +453,7 @@ bool debStatusListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
{"triggers-pending",pkgCache::State::TriggersPending},
{"installed",pkgCache::State::Installed},
{NULL, 0}};
- if (GrabWord(string(Start,I-Start),StatusList,Pkg->CurrentState) == false)
+ if (GrabWord(StringView(Start,I-Start),StatusList,Pkg->CurrentState) == false)
return _error->Error("Malformed 3rd word in the Status line");
/* A Status line marks the package as indicating the current
@@ -544,6 +551,22 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
bool const &StripMultiArch,
bool const &ParseRestrictionsList)
{
+ StringView PackageView;
+ StringView VerView;
+
+ auto res = ParseDepends(Start, Stop, PackageView, VerView, Op, (bool)ParseArchFlags,
+ (bool) StripMultiArch, (bool) ParseRestrictionsList);
+ Package = PackageView.to_string();
+ Ver = VerView.to_string();
+
+ return res;
+}
+const char *debListParser::ParseDepends(const char *Start,const char *Stop,
+ StringView &Package,StringView &Ver,
+ unsigned int &Op, bool ParseArchFlags,
+ bool StripMultiArch,
+ bool ParseRestrictionsList)
+{
// Strip off leading space
for (;Start != Stop && isspace_ascii(*Start) != 0; ++Start);
@@ -561,16 +584,16 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
return 0;
// Stash the package name
- Package.assign(Start,I - Start);
+ Package = StringView(Start, I - Start);
// We don't want to confuse library users which can't handle MultiArch
if (StripMultiArch == true) {
string const arch = _config->Find("APT::Architecture");
size_t const found = Package.rfind(':');
- if (found != string::npos &&
- (strcmp(Package.c_str() + found, ":any") == 0 ||
- strcmp(Package.c_str() + found, ":native") == 0 ||
- strcmp(Package.c_str() + found + 1, arch.c_str()) == 0))
+ if (found != StringView::npos &&
+ (Package.compare(found, Package.size(), ":any") == 0 ||
+ Package.compare(found, Package.size(), ":native") == 0||
+ Package.compare(found +1, Package.size(), arch) == 0))
Package = Package.substr(0,found);
}
@@ -597,12 +620,12 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
const char *End = I;
for (; End > Start && isspace_ascii(End[-1]); End--);
- Ver.assign(Start,End-Start);
+ Ver = StringView(Start,End-Start);
I++;
}
else
{
- Ver.clear();
+ Ver = StringView();
Op = pkgCache::Dep::NoOp;
}
@@ -790,8 +813,8 @@ bool debListParser::ParseDepends(pkgCache::VerIterator &Ver,
while (1)
{
- string Package;
- string Version;
+ StringView Package;
+ StringView Version;
unsigned int Op;
Start = ParseDepends(Start, Stop, Package, Version, Op, false, false, false);
@@ -804,7 +827,7 @@ bool debListParser::ParseDepends(pkgCache::VerIterator &Ver,
if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false)
return false;
}
- else if (strcmp(Package.c_str() + found, ":any") == 0)
+ else if (Package.compare(found, Package.npos, ":any") == 0)
{
if (NewDepends(Ver,Package,"any",Version,Op,Type) == false)
return false;
@@ -813,10 +836,12 @@ bool debListParser::ParseDepends(pkgCache::VerIterator &Ver,
{
// Such dependencies are not supposed to be accepted …
// … but this is probably the best thing to do anyway
+ std::string Pkg;
if (Package.substr(found + 1) == "native")
- Package = Package.substr(0, found) + ':' + Ver.Cache()->NativeArch();
-
- if (NewDepends(Ver, Package, "any", Version, Op | pkgCache::Dep::ArchSpecific, Type) == false)
+ Pkg = Package.substr(0, found).to_string() + ':' + Ver.Cache()->NativeArch();
+ else
+ Pkg = Package.to_string();
+ if (NewDepends(Ver, Pkg, "any", Version, Op | pkgCache::Dep::ArchSpecific, Type) == false)
return false;
}
@@ -852,8 +877,8 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
const char *Stop;
if (Section.Find("Provides",Start,Stop) == true)
{
- string Package;
- string Version;
+ StringView Package;
+ StringView Version;
unsigned int Op;
do
@@ -862,10 +887,10 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
const size_t archfound = Package.rfind(':');
if (Start == 0)
return _error->Error("Problem parsing Provides line");
- if (Op != pkgCache::Dep::NoOp && Op != pkgCache::Dep::Equals) {
- _error->Warning("Ignoring Provides line with non-equal DepCompareOp for package %s", Package.c_str());
+ if (unlikely(Op != pkgCache::Dep::NoOp && Op != pkgCache::Dep::Equals)) {
+ _error->Warning("Ignoring Provides line with non-equal DepCompareOp for package %s", Package.to_string().c_str());
} else if (archfound != string::npos) {
- std::string spzArch = Package.substr(archfound + 1);
+ StringView spzArch = Package.substr(archfound + 1);
if (spzArch != "any")
{
if (NewProvides(Ver, Package.substr(0, archfound), spzArch, Version, pkgCache::Flag::MultiArchImplicit | pkgCache::Flag::ArchSpecific) == false)
@@ -880,7 +905,7 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
} else {
if ((Ver->MultiArch & pkgCache::Version::Allowed) == pkgCache::Version::Allowed)
{
- if (NewProvides(Ver, Package + ":any", "any", Version, pkgCache::Flag::MultiArchImplicit) == false)
+ if (NewProvides(Ver, Package.to_string().append(":any"), "any", Version, pkgCache::Flag::MultiArchImplicit) == false)
return false;
}
if (NewProvides(Ver, Package, Arch, Version, 0) == false)
@@ -888,7 +913,9 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
}
if (archfound == std::string::npos)
{
- std::string const spzName = Package + ':' + Ver.ParentPkg().Arch();
+ string spzName = Package.to_string();
+ spzName.push_back(':');
+ spzName.append(Ver.ParentPkg().Arch());
pkgCache::PkgIterator const spzPkg = Ver.Cache()->FindPkg(spzName, "any");
if (spzPkg.end() == false)
{
@@ -929,11 +956,12 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
// ListParser::GrabWord - Matches a word and returns /*{{{*/
// ---------------------------------------------------------------------
/* Looks for a word in a list of words - for ParseStatus */
-bool debListParser::GrabWord(string Word,const WordList *List,unsigned char &Out)
+bool debListParser::GrabWord(StringView Word,const WordList *List,unsigned char &Out)
{
for (unsigned int C = 0; List[C].Str != 0; C++)
{
- if (strcasecmp(Word.c_str(),List[C].Str) == 0)
+ if (Word.length() == strlen(List[C].Str) &&
+ strncasecmp(Word.data(),List[C].Str,Word.length()) == 0)
{
Out = List[C].Val;
return true;
diff --git a/apt-pkg/deb/deblistparser.h b/apt-pkg/deb/deblistparser.h
index 42111c837..ad134f8e6 100644
--- a/apt-pkg/deb/deblistparser.h
+++ b/apt-pkg/deb/deblistparser.h
@@ -19,6 +19,9 @@
#include <string>
#include <vector>
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
#ifndef APT_8_CLEANER_HEADERS
#include <apt-pkg/indexfile.h>
@@ -50,7 +53,10 @@ class APT_HIDDEN debListParser : public pkgCacheListParser
bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
unsigned int Type);
bool ParseProvides(pkgCache::VerIterator &Ver);
- static bool GrabWord(std::string Word,const WordList *List,unsigned char &Out);
+
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+ APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
+#endif
APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
public:
@@ -64,6 +70,9 @@ class APT_HIDDEN debListParser : public pkgCacheListParser
virtual std::string Version() APT_OVERRIDE;
virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
virtual std::string Description(std::string const &lang) APT_OVERRIDE;
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+ APT::StringView Description(APT::StringView lang);
+#endif
virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
virtual MD5SumValue Description_md5() APT_OVERRIDE;
virtual unsigned short VersionHash() APT_OVERRIDE;
@@ -91,6 +100,14 @@ class APT_HIDDEN debListParser : public pkgCacheListParser
bool const &ParseArchFlags, bool const &StripMultiArch,
bool const &ParseRestrictionsList);
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+ APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
+ APT::StringView &Package,
+ APT::StringView &Ver,unsigned int &Op,
+ bool const ParseArchFlags = false, bool StripMultiArch = true,
+ bool const ParseRestrictionsList = false);
+#endif
+
APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
debListParser(FileFd *File);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 14:33:42 +0000