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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 17:44:55 +0000 |
commit | 5068d34c08f951a7ea6257d305a1627b09a95817 (patch) | |
tree | 08213e2be853396a3b07ce15dbe222644dcd9a89 /src/md4cpp.hh | |
parent | Initial commit. (diff) | |
download | lnav-5068d34c08f951a7ea6257d305a1627b09a95817.tar.xz lnav-5068d34c08f951a7ea6257d305a1627b09a95817.zip |
Adding upstream version 0.11.1.upstream/0.11.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/md4cpp.hh | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/md4cpp.hh b/src/md4cpp.hh new file mode 100644 index 0000000..99d09e0 --- /dev/null +++ b/src/md4cpp.hh @@ -0,0 +1,144 @@ +/** + * Copyright (c) 2022, Timothy Stack + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * * Neither the name of Timothy Stack nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef lnav_md4cpp_hh +#define lnav_md4cpp_hh + +#include <map> +#include <string> +#include <unordered_map> + +#include "base/intern_string.hh" +#include "base/result.h" +#include "mapbox/variant.hpp" +#include "md4c/md4c.h" + +namespace md4cpp { + +struct xml_entity { + std::string xe_chars; +}; + +struct xml_entity_map { + std::map<std::string, xml_entity> xem_entities; +}; + +struct emoji { + std::string e_shortname; + std::string e_value; +}; + +struct emoji_map { + std::vector<emoji> em_emojis; + std::unordered_map<std::string, std::reference_wrapper<emoji>> + em_shortname2emoji; +}; + +class event_handler { +public: + virtual ~event_handler() = default; + + struct block_doc {}; + struct block_quote {}; + struct block_hr {}; + struct block_html {}; + struct block_p {}; + struct block_thead {}; + struct block_tbody {}; + struct block_tr {}; + struct block_th {}; + + using block = mapbox::util::variant<block_doc, + block_quote, + MD_BLOCK_UL_DETAIL*, + MD_BLOCK_OL_DETAIL*, + MD_BLOCK_LI_DETAIL*, + block_hr, + MD_BLOCK_H_DETAIL*, + MD_BLOCK_CODE_DETAIL*, + block_html, + block_p, + MD_BLOCK_TABLE_DETAIL*, + block_thead, + block_tbody, + block_tr, + block_th, + MD_BLOCK_TD_DETAIL*>; + + virtual Result<void, std::string> enter_block(const block& bl) = 0; + virtual Result<void, std::string> leave_block(const block& bl) = 0; + + struct span_em {}; + struct span_strong {}; + struct span_code {}; + struct span_del {}; + struct span_u {}; + + using span = mapbox::util::variant<span_em, + span_strong, + MD_SPAN_A_DETAIL*, + MD_SPAN_IMG_DETAIL*, + span_code, + span_del, + span_u>; + + virtual Result<void, std::string> enter_span(const span& bl) = 0; + virtual Result<void, std::string> leave_span(const span& bl) = 0; + + virtual Result<void, std::string> text(MD_TEXTTYPE tt, + const string_fragment& sf) + = 0; +}; + +namespace details { +Result<void, std::string> parse(const string_fragment& sf, event_handler& eh); +} + +template<typename T> +class typed_event_handler : public event_handler { +public: + virtual T get_result() = 0; +}; + +template<typename T> +Result<T, std::string> +parse(const string_fragment& sf, typed_event_handler<T>& eh) +{ + TRY(details::parse(sf, eh)); + + return Ok(eh.get_result()); +} + +const xml_entity_map& get_xml_entity_map(); + +const emoji_map& get_emoji_map(); + +} // namespace md4cpp + +#endif |