// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: cmndline.cc,v 1.11 2001/02/20 07:03:17 jgg Exp $
+// $Id: cmndline.cc,v 1.15 2003/02/10 01:40:58 doogie Exp $
/* ######################################################################
Command Line Class - Sophisticated command line parser
+ This source is placed in the Public Domain, do with it what you will
+ It was originally written by Jason Gunthorpe <jgg@debian.org>.
+
##################################################################### */
/*}}}*/
// Include files /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/cmndline.h"
-#endif
+#include<config.h>
+
+#include <apt-pkg/configuration.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
-#include <apti18n.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+
+#include <apti18n.h>
/*}}}*/
+using namespace std;
// CommandLine::CommandLine - Constructor /*{{{*/
// ---------------------------------------------------------------------
delete [] FileList;
}
/*}}}*/
+// CommandLine::GetCommand - return the first non-option word /*{{{*/
+char const * CommandLine::GetCommand(Dispatch const * const Map,
+ unsigned int const argc, char const * const * const argv)
+{
+ // if there is a -- on the line there must be the word we search for either
+ // before it (as -- marks the end of the options) or right after it (as we can't
+ // decide if the command is actually an option, given that in theory, you could
+ // have parameters named like commands)
+ for (size_t i = 1; i < argc; ++i)
+ {
+ if (strcmp(argv[i], "--") != 0)
+ continue;
+ // check if command is before --
+ for (size_t k = 1; k < i; ++k)
+ for (size_t j = 0; Map[j].Match != NULL; ++j)
+ if (strcmp(argv[k], Map[j].Match) == 0)
+ return Map[j].Match;
+ // see if the next token after -- is the command
+ ++i;
+ if (i < argc)
+ for (size_t j = 0; Map[j].Match != NULL; ++j)
+ if (strcmp(argv[i], Map[j].Match) == 0)
+ return Map[j].Match;
+ // we found a --, but not a command
+ return NULL;
+ }
+ // no --, so search for the first word matching a command
+ // FIXME: How like is it that an option parameter will be also a valid Match ?
+ for (size_t i = 1; i < argc; ++i)
+ {
+ if (*(argv[i]) == '-')
+ continue;
+ for (size_t j = 0; Map[j].Match != NULL; ++j)
+ if (strcmp(argv[i], Map[j].Match) == 0)
+ return Map[j].Match;
+ }
+ return NULL;
+}
+ /*}}}*/
// CommandLine::Parse - Main action member /*{{{*/
// ---------------------------------------------------------------------
/* */
// Double dash signifies the end of option processing
if (*Opt == '-' && Opt[1] == 0)
+ {
+ I++;
break;
+ }
// Single dash is a short option
if (*Opt != '-')
Opt++;
// Match up to a = against the list
- const char *OptEnd = Opt;
Args *A;
- for (; *OptEnd != 0 && *OptEnd != '='; OptEnd++);
- for (A = ArgList; A->end() == false &&
- stringcasecmp(Opt,OptEnd,A->LongOpt) != 0; A++);
+ const char *OptEnd = strchrnul(Opt, '=');
+ for (A = ArgList; A->end() == false &&
+ (A->LongOpt == 0 || stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
+ ++A);
// Failed, look for a word after the first - (no-foo)
bool PreceedMatch = false;
if (A->end() == true)
{
- for (; Opt != OptEnd && *Opt != '-'; Opt++);
-
- if (Opt == OptEnd)
+ Opt = (const char*) memchr(Opt, '-', OptEnd - Opt);
+ if (Opt == NULL)
return _error->Error(_("Command line option %s is not understood"),argv[I]);
Opt++;
for (A = ArgList; A->end() == false &&
- stringcasecmp(Opt,OptEnd,A->LongOpt) != 0; A++);
+ (A->LongOpt == 0 || stringcasecmp(Opt,OptEnd,A->LongOpt) != 0);
+ ++A);
// Failed again..
if (A->end() == true && OptEnd - Opt != 1)
for (; I != argc; I++)
*Files++ = argv[I];
*Files = 0;
-
+
+ SaveInConfig(argc, argv);
+
return true;
}
/*}}}*/
if ((A->Flags & ConfigFile) == ConfigFile)
return ReadConfigFile(*Conf,Argument);
- // Arbitary item specification
+ // Arbitrary item specification
if ((A->Flags & ArbItem) == ArbItem)
{
- const char *J;
- for (J = Argument; *J != 0 && *J != '='; J++);
- if (*J == 0)
- return _error->Error(_("Option %s: Configuration item sepecification must have an =<val>."),argv[I]);
+ const char *J = strchr(Argument, '=');
+ if (J == NULL)
+ return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);
// = is trailing
if (J[1] == 0)
{
if (I+1 >= argc)
- return _error->Error(_("Option %s: Configuration item sepecification must have an =<val>."),argv[I]);
+ return _error->Error(_("Option %s: Configuration item specification must have an =<val>."),argv[I]);
Conf->Set(string(Argument,J-Argument),string(argv[I++ +1]));
}
else
return true;
}
- const char *I = A->ConfName;
- for (; *I != 0 && *I != ' '; I++);
+ const char *I = strchrnul(A->ConfName, ' ');
if (*I == ' ')
Conf->Set(string(A->ConfName,0,I-A->ConfName),string(I+1) + Argument);
else
// Look for an argument.
while (1)
{
- // Look at preceeding text
+ // Look at preceding text
char Buffer[300];
if (Argument == 0)
{
// Skip the leading dash
const char *J = argv[I];
for (; *J != 0 && *J == '-'; J++);
-
- const char *JEnd = J;
- for (; *JEnd != 0 && *JEnd != '-'; JEnd++);
- if (*JEnd != 0)
+
+ const char *JEnd = strchr(J, '-');
+ if (JEnd != NULL)
{
strncpy(Buffer,J,JEnd - J);
Buffer[JEnd - J] = 0;
return false;
}
/*}}}*/
+// CommandLine::SaveInConfig - for output later in a logfile or so /*{{{*/
+// ---------------------------------------------------------------------
+/* We save the commandline here to have it around later for e.g. logging.
+ It feels a bit like a hack here and isn't bulletproof, but it is better
+ than nothing after all. */
+void CommandLine::SaveInConfig(unsigned int const &argc, char const * const * const argv)
+{
+ char cmdline[100 + argc * 50];
+ memset(cmdline, 0, sizeof(cmdline));
+ unsigned int length = 0;
+ bool lastWasOption = false;
+ bool closeQuote = false;
+ for (unsigned int i = 0; i < argc && length < sizeof(cmdline); ++i, ++length)
+ {
+ for (unsigned int j = 0; argv[i][j] != '\0' && length < sizeof(cmdline)-1; ++j, ++length)
+ {
+ cmdline[length] = argv[i][j];
+ if (lastWasOption == true && argv[i][j] == '=')
+ {
+ // That is possibly an option: Quote it if it includes spaces,
+ // the benefit is that this will eliminate also most false positives
+ const char* c = strchr(&argv[i][j+1], ' ');
+ if (c == NULL) continue;
+ cmdline[++length] = '"';
+ closeQuote = true;
+ }
+ }
+ if (closeQuote == true)
+ cmdline[length++] = '"';
+ // Problem: detects also --hello
+ if (cmdline[length-1] == 'o')
+ lastWasOption = true;
+ cmdline[length] = ' ';
+ }
+ cmdline[--length] = '\0';
+ _config->Set("CommandLine::AsString", cmdline);
+}
+ /*}}}*/
+CommandLine::Args CommandLine::MakeArgs(char ShortOpt, char const *LongOpt, char const *ConfName, unsigned long Flags)/*{{{*/
+{
+ /* In theory, this should be a constructor for CommandLine::Args instead,
+ but this breaks compatibility as gcc thinks this is a c++11 initializer_list */
+ CommandLine::Args arg;
+ arg.ShortOpt = ShortOpt;
+ arg.LongOpt = LongOpt;
+ arg.ConfName = ConfName;
+ arg.Flags = Flags;
+ return arg;
+}
+ /*}}}*/
HCoop / ntk / apt.git / blobdiff