59 lines
2 KiB
Ruby
59 lines
2 KiB
Ruby
class BisonAT27 < Formula
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desc "Parser generator"
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homepage "https://www.gnu.org/software/bison/"
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url "https://ftp.gnu.org/gnu/bison/bison-2.7.1.tar.gz"
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mirror "https://ftpmirror.gnu.org/bison/bison-2.7.1.tar.gz"
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sha256 "08e2296b024bab8ea36f3bb3b91d071165b22afda39a17ffc8ff53ade2883431"
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revision 1
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bottle do
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sha256 "b9af668b0da3e89f4a2d7b7e4d42009965780d1f7cd1541df85f758c2b7af55a" => :catalina
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sha256 "125fdf2eb737cdb8a3e795234f8e1fb5ec477f8590c534f7895497a6af82e04b" => :mojave
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sha256 "ee0e758aa798809aaa3e94f1e3659c9d33497a577c25cfc03ecfe18c25862837" => :high_sierra
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sha256 "7f1f717becaf0a818b154d3706b88f6c61a102b4f909e030005aaa5433abc34e" => :sierra
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sha256 "3b49ff1a76807438bfb6805e513d372fba8d49c0259fe4f28e1587d47e42bf5c" => :el_capitan
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end
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keg_only :versioned_formula
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if MacOS.version >= :high_sierra
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patch :p0 do
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url "https://raw.githubusercontent.com/macports/macports-ports/b76d1e48dac/editors/nano/files/secure_snprintf.patch"
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sha256 "57f972940a10d448efbd3d5ba46e65979ae4eea93681a85e1d998060b356e0d2"
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end
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end
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def install
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system "./configure", "--disable-dependency-tracking",
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"--prefix=#{prefix}"
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system "make", "install"
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end
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test do
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(testpath/"test.y").write <<~EOS
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%{ #include <iostream>
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using namespace std;
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extern void yyerror (char *s);
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extern int yylex ();
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%}
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%start prog
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%%
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prog: // empty
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| prog expr '\\n' { cout << "pass"; exit(0); }
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;
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expr: '(' ')'
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| '(' expr ')'
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| expr expr
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;
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%%
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char c;
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void yyerror (char *s) { cout << "fail"; exit(0); }
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int yylex () { cin.get(c); return c; }
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int main() { yyparse(); }
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EOS
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system "#{bin}/bison", "test.y"
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system ENV.cxx, "test.tab.c", "-o", "test"
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assert_equal "pass", shell_output("echo \"((()(())))()\" | ./test")
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assert_equal "fail", shell_output("echo \"())\" | ./test")
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end
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end
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