50 lines
1.0 KiB
C++
50 lines
1.0 KiB
C++
#include <stdlib.h>
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#include <unistd.h>
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#include <emit.hh>
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#include <iostream>
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#include <string>
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#include <xlangLexer.h>
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#include <xlangParser.h>
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static void usage() {
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std::cerr << getprogname() << " [-o output.ssa] input.x" << std::endl;
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exit(1);
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}
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int main(int argc, char **argv) {
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int opt;
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std::string inputfile;
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std::string outputfile;
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while ((opt = getopt(argc, argv, "o:")) != -1) {
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switch (opt) {
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case 'o':
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outputfile = optarg;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1) {
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usage();
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}
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inputfile = argv[0];
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if (!outputfile.length()) {
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outputfile = "/dev/stdout";
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}
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std::ifstream inputstream{inputfile};
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antlr4::ANTLRInputStream input{inputstream};
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xlang::xlangLexer lexer{&input};
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antlr4::CommonTokenStream tokens{&lexer};
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xlang::xlangParser parser{&tokens};
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auto *tree = parser.file();
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xlang::EmitListener emit{outputfile};
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antlr4::tree::ParseTreeWalker::DEFAULT.walk(&emit, tree);
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return 0;
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}
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