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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:00:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:00:48 +0000
commit851b6a097165af4d51c0db01b5e05256e5006896 (patch)
tree5f7c388ec894a7806c49a99f3bdb605d0b299a7c /apt-pkg/contrib/cmndline.h
parentInitial commit. (diff)
downloadapt-851b6a097165af4d51c0db01b5e05256e5006896.tar.xz
apt-851b6a097165af4d51c0db01b5e05256e5006896.zip
Adding upstream version 2.6.1.upstream/2.6.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'apt-pkg/contrib/cmndline.h')
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ Command Line Class - Sophisticated command line parser
+
+ This class provides a unified command line parser/option handliner/
+ configuration mechanism. It allows the caller to specify the option
+ set and map the option set into the configuration class or other
+ special functioning.
+
+ Filenames are stripped from the option stream and put into their
+ own array.
+
+ The argument descriptor array can be initialized as:
+
+ CommandLine::Args Args[] =
+ {{'q',"quiet","apt::get::quiet",CommandLine::IntLevel},
+ {0,0,0,0}};
+
+ The flags mean,
+ HasArg - Means the argument has a value
+ IntLevel - Means the argument is an integer level indication, the
+ following -qqqq (+3) -q5 (=5) -q=5 (=5) are valid
+ Boolean - Means it is true/false or yes/no.
+ -d (true) --no-d (false) --yes-d (true)
+ --long (true) --no-long (false) --yes-long (true)
+ -d=yes (true) -d=no (false) Words like enable, disable,
+ true false, yes no and on off are recognized in logical
+ places.
+ InvBoolean - Same as boolean but the case with no specified sense
+ (first case) is set to false.
+ ConfigFile - Means this flag should be interprited as the name of
+ a config file to read in at this point in option processing.
+ Implies HasArg.
+ ArbItem - Means the item is an arbitrary configuration string of
+ the form item=value, where item is passed directly
+ to the configuration class.
+ The default, if the flags are 0 is to use Boolean
+
+ ##################################################################### */
+ /*}}}*/
+#ifndef PKGLIB_CMNDLINE_H
+#define PKGLIB_CMNDLINE_H
+
+#include <apt-pkg/macros.h>
+
+
+class Configuration;
+
+class APT_PUBLIC CommandLine
+{
+ public:
+ struct Args;
+ struct Dispatch;
+ struct DispatchWithHelp;
+
+ protected:
+
+ Args *ArgList;
+ Configuration *Conf;
+ bool HandleOpt(int &I,int argc,const char *argv[],
+ const char *&Opt,Args *A,bool PreceedeMatch = false);
+ void static SaveInConfig(unsigned int const &argc, char const * const * const argv);
+
+ public:
+
+ enum AFlags
+ {
+ HasArg = (1 << 0),
+ IntLevel = (1 << 1),
+ Boolean = (1 << 2),
+ InvBoolean = (1 << 3),
+ ConfigFile = (1 << 4) | HasArg,
+ ArbItem = (1 << 5) | HasArg
+ };
+
+ const char **FileList;
+
+ bool Parse(int argc,const char **argv);
+ void ShowHelp();
+ unsigned int FileSize() const APT_PURE;
+ bool DispatchArg(Dispatch const * const List,bool NoMatch = true);
+
+ static char const * GetCommand(Dispatch const * const Map,
+ unsigned int const argc, char const * const * const argv) APT_PURE;
+
+ static CommandLine::Args MakeArgs(char ShortOpt, char const *LongOpt,
+ char const *ConfName, unsigned long Flags) APT_PURE;
+
+ CommandLine();
+ CommandLine(Args *AList,Configuration *Conf);
+ ~CommandLine();
+};
+
+struct CommandLine::Args
+{
+ char ShortOpt;
+ const char *LongOpt;
+ const char *ConfName;
+ unsigned long Flags;
+
+ inline bool end() {return ShortOpt == 0 && LongOpt == 0;};
+ inline bool IsBoolean() {return Flags == 0 || (Flags & (Boolean|InvBoolean)) != 0;};
+};
+
+struct CommandLine::Dispatch
+{
+ const char *Match;
+ bool (*Handler)(CommandLine &);
+};
+
+#endif