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/*
bisonc++.cc
*/
#include "main.ih"
using namespace std;
using namespace FBB;
namespace
{
Arg::LongOption longOptions[] =
{
Arg::LongOption{"analyze-only", 'A'},
Arg::LongOption{"baseclass-header", 'b'}, // also directive
Arg::LongOption{"baseclass-preinclude", 'H'}, // also directive
{"baseclass-skeleton", 'B'},
Arg::LongOption{"class-header", 'c'}, // also directive
Arg::LongOption{"class-name", Arg::Required}, // also directive
Arg::LongOption{"class-skeleton", 'C'},
Arg::LongOption{"construction"},
// implies verbose, but also shows
// FIRST and FOLLOW sets as well as
// the full set of states, including
// the non-kernel items
Arg::LongOption{"debug"}, // also directive
Arg::LongOption{"default-actions", 'd'}, // also directive
Arg::LongOption{"error-verbose"}, // also directive
Arg::LongOption{"filenames", 'f'}, // also directive
Arg::LongOption{"flex"}, // also directive
Arg::LongOption{"help", 'h'},
Arg::LongOption{"implementation-header", 'i'}, // also directive
Arg::LongOption{"implementation-skeleton", 'I'},
Arg::LongOption{"insert-stype"},
Arg::LongOption{"max-inclusion-depth", Arg::Required},
Arg::LongOption{"namespace", 'n'}, // also directive
Arg::LongOption{"no-baseclass-header"},
Arg::LongOption{"no-decoration", 'D'},
Arg::LongOption{"no-lines"}, // also directive
Arg::LongOption{"no-parse-member"},
Arg::LongOption{"own-debug"},
Arg::LongOption{"own-tokens", 'T'},
Arg::LongOption{"parsefun-skeleton", 'P'},
Arg::LongOption{"parsefun-source", 'p'}, // also directive
Arg::LongOption{"polymorphic-code-skeleton", 'L'},
Arg::LongOption{"polymorphic-skeleton", 'M'},
Arg::LongOption{"print-tokens", 't'}, // also directive
Arg::LongOption{"prompt"}, // also directive
Arg::LongOption{"required-tokens", Arg::Required}, // also directive
Arg::LongOption{"scanner", 's'}, // also directive
// also directive
Arg::LongOption{"scanner-class-name", Arg::Required},
Arg::LongOption{"scanner-debug"},
// also directive
Arg::LongOption{"scanner-matched-text-function", Arg::Required},
// also directive
Arg::LongOption{"scanner-token-function", Arg::Required},
Arg::LongOption{"show-filenames"},
Arg::LongOption{"skeleton-directory", 'S'},
Arg::LongOption{"stack-expansion", Arg::Required},
Arg::LongOption{"tag-mismatches", Arg::Required}, // also directive
Arg::LongOption{"target-directory", Arg::Required}, // also directive
Arg::LongOption{"thread-safe"}, // also directive
Arg::LongOption{"token-path", 'F'}, // also directive
Arg::LongOption{"token-class", 'K'}, // also directive
Arg::LongOption{"token-namespace", 'N'}, // also directive
Arg::LongOption{"usage", 'h'},
Arg::LongOption{"verbose", 'V'},
// shows rules, tokens, final states and kernel
// items, and describes conflicts when found
Arg::LongOption{"version", 'v'},
};
auto longEnd = longOptions +
sizeof(longOptions) / sizeof(Arg::LongOption);
}
int main(int argc, char **argv)
try
{
Arg &arg = Arg::initialize(
"AB:b:C:c:d:DF:f:H:hI:i:K:L:M:n:N:p:P:Qs:S:tTVv",
longOptions, longEnd, argc, argv);
arg.versionHelp(usage, version, 1);
Rules rules;
Parser parser(rules);
// parser.setDebug(Parser::ACTIONCASES | Parser::ON);
int ret = parser.parse(); // parses the input, fills the data in the
// Rules read the grammar file, build required
// data structures.
if (arg.option('Q'))
{
cout << "parsing returns " << ret << '\n';
return 0;
}
parser.cleanup(); // do cleanup actions following parse()
// (terminate if parsing produced errors)
rules.updatePrecedences(); // update production rule precedences
rules.showRules();
rules.showTerminals();
rules.determineFirst();
rules.showFirst();
// define the startproduction
Production::setStart(rules.startProduction());
State::define(rules); // define all states
rules.assignNonTerminalNumbers();
rules.showUnusedTerminals();
rules.showUnusedNonTerminals();
rules.showUnusedRules();
State::allStates();
Grammar grammar;
grammar.deriveSentence();
if (emsg.count())
return 1;
if (arg.option('A')) // Analyze only
return 0;
Generator generator(rules, parser.releasePolymorphic());
if (generator.conflicts())
return 1;
generator.baseClassHeader();
generator.classHeader();
generator.implementationHeader();
generator.parseFunction();
}
catch(exception const &err)
{
cerr << err.what() << '\n';
return 1;
}
catch(int x)
{
return Arg::instance().option("hv") ? 0 : x;
}
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