upstream/mercurial-mirror Files · rust/hg-core/src/re2/rust_re2.cpp

packaging: isolate invocation of WiX to own function...

packaging: isolate invocation of WiX to own function Like we did for Inno, we want to split out the building of Mercurial from invoking the packaging tool so that we can introduce an alternate build mechanism. As part of this refactor, there are inconsequential changes to file layouts. Before, some shared files such as the WiX binaries and merge modules would be installed under build/. Now, they are installed under build/wix-*. This is to keep implementation simpler. But it also helps keep build state more isolated. Differential Revision: https://phab.mercurial-scm.org/D8474

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             rust_re2.cpp
        
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      /*

      rust_re2.cpp

      C ABI export of Re2's C++ interface for Rust FFI.

      Copyright 2020 Valentin Gatien-Baron

      This software may be used and distributed according to the terms of the

      GNU General Public License version 2 or any later version.

      */

      #include <re2/re2.h>

      using namespace re2;

      extern "C" {

      	RE2* rust_re2_create(const char* data, size_t len) {

      		RE2::Options o;

      		o.set_encoding(RE2::Options::Encoding::EncodingLatin1);

      		o.set_log_errors(false);

      		o.set_max_mem(50000000);

      		return new RE2(StringPiece(data, len), o);

      	}

      	void rust_re2_destroy(RE2* re) {

      		delete re;

      	}

      	bool rust_re2_ok(RE2* re) {

      		return re->ok();

      	}

      	void rust_re2_error(RE2* re, const char** outdata, size_t* outlen) {

      		const std::string& e = re->error();

      		*outdata = e.data();

      		*outlen = e.length();

      	}

      	bool rust_re2_match(RE2* re, char* data, size_t len, int ianchor) {

      		const StringPiece sp = StringPiece(data, len);

      		RE2::Anchor anchor =

      			ianchor == 0 ? RE2::Anchor::UNANCHORED :

      			(ianchor == 1 ? RE2::Anchor::ANCHOR_START :

      			 RE2::Anchor::ANCHOR_BOTH);

      		return re->Match(sp, 0, len, anchor, NULL, 0);

      	}

      }

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				/*
				rust_re2.cpp

				C ABI export of Re2's C++ interface for Rust FFI.

				Copyright 2020 Valentin Gatien-Baron

				This software may be used and distributed according to the terms of the
				GNU General Public License version 2 or any later version.
				*/

				#include <re2/re2.h>
				using namespace re2;

				extern "C" {
				RE2* rust_re2_create(const char* data, size_t len) {
				RE2::Options o;
				o.set_encoding(RE2::Options::Encoding::EncodingLatin1);
				o.set_log_errors(false);
				o.set_max_mem(50000000);

				return new RE2(StringPiece(data, len), o);
				}

				void rust_re2_destroy(RE2* re) {
				delete re;
				}

				bool rust_re2_ok(RE2* re) {
				return re->ok();
				}

				void rust_re2_error(RE2* re, const char** outdata, size_t* outlen) {
				const std::string& e = re->error();
				*outdata = e.data();
				*outlen = e.length();
				}

				bool rust_re2_match(RE2* re, char* data, size_t len, int ianchor) {
				const StringPiece sp = StringPiece(data, len);

				RE2::Anchor anchor =
				ianchor == 0 ? RE2::Anchor::UNANCHORED :
				(ianchor == 1 ? RE2::Anchor::ANCHOR_START :
				RE2::Anchor::ANCHOR_BOTH);

				return re->Match(sp, 0, len, anchor, NULL, 0);
				}
				}