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1089 lines
40 KiB
C++
1089 lines
40 KiB
C++
/**
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* Copyright (c) 2022, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "md2attr_line.hh"
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#include "base/attr_line.builder.hh"
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#include "base/itertools.enumerate.hh"
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#include "base/itertools.hh"
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#include "base/lnav_log.hh"
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#include "base/map_util.hh"
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#include "document.sections.hh"
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#include "pcrepp/pcre2pp.hh"
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#include "pugixml/pugixml.hpp"
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#include "readline_highlighters.hh"
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#include "text_format.hh"
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#include "textfile_highlighters.hh"
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#include "view_curses.hh"
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using namespace lnav::roles::literals;
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using namespace md4cpp::literals;
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static const std::map<string_fragment, text_format_t> CODE_NAME_TO_TEXT_FORMAT
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= {
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{"c"_frag, text_format_t::TF_C_LIKE},
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{"c++"_frag, text_format_t::TF_C_LIKE},
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{"java"_frag, text_format_t::TF_JAVA},
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{"python"_frag, text_format_t::TF_PYTHON},
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{"rust"_frag, text_format_t::TF_RUST},
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{"toml"_frag, text_format_t::TF_TOML},
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{"yaml"_frag, text_format_t::TF_YAML},
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{"xml"_frag, text_format_t::TF_XML},
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};
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static highlight_map_t
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get_highlight_map()
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{
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highlight_map_t retval;
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setup_highlights(retval);
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return retval;
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}
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void
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md2attr_line::flush_footnotes()
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{
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if (this->ml_footnotes.empty()) {
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return;
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}
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auto& block_text = this->ml_blocks.back();
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auto longest_foot = this->ml_footnotes
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| lnav::itertools::map(&attr_line_t::column_width)
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| lnav::itertools::max(0);
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block_text.append("\n");
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for (const auto& [index, foot] :
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lnav::itertools::enumerate(this->ml_footnotes, 1))
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{
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auto footline
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= attr_line_t(" ")
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.append("\u258c"_footnote_border)
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.append(lnav::roles::footnote_text(
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index < 10 && this->ml_footnotes.size() >= 10 ? " " : ""))
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.append(lnav::roles::footnote_text(
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fmt::format(FMT_STRING("[{}] - "), index)))
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.append(foot.pad_to(longest_foot))
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.with_attr_for_all(SA_PREFORMATTED.value());
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block_text.append(footline).append("\n");
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}
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this->ml_footnotes.clear();
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}
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Result<void, std::string>
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md2attr_line::enter_block(const md4cpp::event_handler::block& bl)
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{
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if (this->ml_list_stack.empty()
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&& (bl.is<MD_BLOCK_H_DETAIL*>() || bl.is<block_hr>()
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|| bl.is<block_p>()))
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{
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this->flush_footnotes();
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}
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this->ml_blocks.resize(this->ml_blocks.size() + 1);
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if (bl.is<MD_BLOCK_OL_DETAIL*>()) {
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auto* ol_detail = bl.get<MD_BLOCK_OL_DETAIL*>();
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this->ml_list_stack.emplace_back(*ol_detail);
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} else if (bl.is<MD_BLOCK_UL_DETAIL*>()) {
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this->ml_list_stack.emplace_back(bl.get<MD_BLOCK_UL_DETAIL*>());
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} else if (bl.is<MD_BLOCK_TABLE_DETAIL*>()) {
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this->ml_tables.resize(this->ml_tables.size() + 1);
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} else if (bl.is<block_tr>()) {
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this->ml_tables.back().t_rows.resize(
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this->ml_tables.back().t_rows.size() + 1);
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} else if (bl.is<MD_BLOCK_CODE_DETAIL*>()) {
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this->ml_code_depth += 1;
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}
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return Ok();
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}
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Result<void, std::string>
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md2attr_line::leave_block(const md4cpp::event_handler::block& bl)
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{
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auto block_text = std::move(this->ml_blocks.back());
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this->ml_blocks.pop_back();
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auto& last_block = this->ml_blocks.back();
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if (!endswith(block_text.get_string(), "\n")) {
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block_text.append("\n");
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}
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if (bl.is<MD_BLOCK_H_DETAIL*>()) {
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auto* hbl = bl.get<MD_BLOCK_H_DETAIL*>();
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auto role = role_t::VCR_TEXT;
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switch (hbl->level) {
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case 1:
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role = role_t::VCR_H1;
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break;
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case 2:
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role = role_t::VCR_H2;
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break;
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case 3:
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role = role_t::VCR_H3;
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break;
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case 4:
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role = role_t::VCR_H4;
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break;
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case 5:
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role = role_t::VCR_H5;
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break;
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case 6:
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role = role_t::VCR_H6;
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break;
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}
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block_text.rtrim().with_attr_for_all(VC_ROLE.value(role));
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last_block.append("\n").append(block_text).append("\n");
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} else if (bl.is<block_hr>()) {
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block_text = attr_line_t()
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.append(lnav::roles::hr(repeat("\u2501", 70)))
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.with_attr_for_all(SA_PREFORMATTED.value());
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last_block.append("\n").append(block_text).append("\n");
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} else if (bl.is<MD_BLOCK_UL_DETAIL*>() || bl.is<MD_BLOCK_OL_DETAIL*>()) {
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this->ml_list_stack.pop_back();
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if (last_block.empty()) {
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last_block.append("\n");
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} else {
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if (!endswith(last_block.get_string(), "\n")) {
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last_block.append("\n");
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}
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if (this->ml_list_stack.empty()
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&& !endswith(last_block.get_string(), "\n\n"))
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{
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last_block.append("\n");
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}
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}
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last_block.append(block_text);
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} else if (bl.is<MD_BLOCK_LI_DETAIL*>()) {
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auto last_list_block = this->ml_list_stack.back();
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text_wrap_settings tws = {0, 60};
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attr_line_builder alb(last_block);
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{
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auto prefix = alb.with_attr(SA_PREFORMATTED.value());
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alb.append(" ")
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.append(last_list_block.match(
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[this, &tws](const MD_BLOCK_UL_DETAIL*) {
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tws.tws_indent = 3;
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return this->ml_list_stack.size() % 2 == 1
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? "\u2022"_list_glyph
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: "\u2014"_list_glyph;
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},
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[this, &tws](MD_BLOCK_OL_DETAIL ol_detail) {
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auto retval = lnav::roles::list_glyph(
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fmt::format(FMT_STRING("{}{}"),
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ol_detail.start,
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ol_detail.mark_delimiter));
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tws.tws_indent = retval.first.length() + 2;
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this->ml_list_stack.pop_back();
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ol_detail.start += 1;
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this->ml_list_stack.emplace_back(ol_detail);
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return retval;
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}))
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.append(" ");
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}
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alb.append(block_text, &tws);
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} else if (bl.is<MD_BLOCK_CODE_DETAIL*>()) {
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auto* code_detail = bl.get<MD_BLOCK_CODE_DETAIL*>();
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this->ml_code_depth -= 1;
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auto lang_sf = string_fragment::from_bytes(code_detail->lang.text,
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code_detail->lang.size);
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auto tf_opt = lnav::map::find(CODE_NAME_TO_TEXT_FORMAT, lang_sf);
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if (tf_opt) {
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static const auto highlighters = get_highlight_map();
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lnav::document::discover_structure(
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block_text, line_range{0, -1}, tf_opt.value());
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for (const auto& hl_pair : highlighters) {
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const auto& hl = hl_pair.second;
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if (!hl.h_text_formats.empty()
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&& hl.h_text_formats.count(tf_opt.value()) == 0)
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{
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continue;
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}
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hl.annotate(block_text, 0);
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}
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} else if (lang_sf == "lnav") {
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readline_lnav_highlighter(block_text, block_text.length());
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} else if (lang_sf == "sql" || lang_sf == "sqlite" || lang_sf == "prql")
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{
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readline_sqlite_highlighter(block_text, block_text.length());
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} else if (lang_sf == "shell" || lang_sf == "bash") {
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readline_shlex_highlighter(block_text, block_text.length());
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} else if (lang_sf == "console"
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|| lang_sf.iequal(
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string_fragment::from_const("shellsession")))
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{
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static const auto SH_PROMPT
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= lnav::pcre2pp::code::from_const(R"([^\$>#%]*[\$>#%]\s+)");
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attr_line_t new_block_text;
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attr_line_t cmd_block;
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int prompt_size = 0;
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for (auto line : block_text.split_lines()) {
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if (!cmd_block.empty()
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&& endswith(cmd_block.get_string(), "\\\n"))
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{
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cmd_block.append(line).append("\n");
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continue;
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}
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if (!cmd_block.empty()) {
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readline_shlex_highlighter_int(
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cmd_block,
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cmd_block.length(),
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line_range{prompt_size, (int) cmd_block.length()});
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new_block_text.append(cmd_block);
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cmd_block.clear();
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}
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auto sh_find_res
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= SH_PROMPT.find_in(line.get_string()).ignore_error();
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if (sh_find_res) {
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prompt_size = sh_find_res->f_all.length();
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line.with_attr(string_attr{
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line_range{0, prompt_size},
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VC_ROLE.value(role_t::VCR_LIST_GLYPH),
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});
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cmd_block.append(line).append("\n");
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} else {
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line.with_attr_for_all(VC_ROLE.value(role_t::VCR_COMMENT));
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new_block_text.append(line).append("\n");
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}
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}
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block_text = new_block_text;
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}
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auto code_lines = block_text.rtrim().split_lines();
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auto max_width = code_lines
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| lnav::itertools::map(&attr_line_t::column_width)
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| lnav::itertools::max(0);
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attr_line_t padded_text;
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for (auto& line : code_lines) {
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line.pad_to(std::max(max_width + 4, size_t{40}))
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_QUOTED_CODE));
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padded_text.append(lnav::string::attrs::preformatted(" "))
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.append("\u258c"_code_border)
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.append(line)
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.append("\n");
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}
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if (!padded_text.empty()) {
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padded_text.with_attr_for_all(SA_PREFORMATTED.value());
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last_block.append("\n").append(padded_text);
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}
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} else if (bl.is<block_quote>()) {
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const static auto ALERT_TYPE = lnav::pcre2pp::code::from_const(
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R"(^\s*\[!(NOTE|TIP|IMPORTANT|WARNING|CAUTION)\])");
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text_wrap_settings tws = {0, 60};
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attr_line_t wrapped_text;
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auto md = ALERT_TYPE.create_match_data();
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std::optional<role_t> border_role;
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block_text.rtrim();
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if (ALERT_TYPE.capture_from(block_text.al_string)
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.into(md)
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.matches()
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.ignore_error())
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{
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attr_line_t replacement;
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if (md[1] == "NOTE") {
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replacement.append("\u24d8 Note\n"_footnote_border);
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border_role = role_t::VCR_FOOTNOTE_BORDER;
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} else if (md[1] == "TIP") {
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replacement.append(":bulb:"_emoji)
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.append(" Tip\n")
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_OK));
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border_role = role_t::VCR_OK;
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} else if (md[1] == "IMPORTANT") {
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replacement.append(":star2:"_emoji)
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.append(" Important\n")
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_INFO));
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border_role = role_t::VCR_INFO;
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} else if (md[1] == "WARNING") {
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replacement.append(":warning:"_emoji)
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.append(" Warning\n")
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_WARNING));
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border_role = role_t::VCR_WARNING;
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} else if (md[1] == "CAUTION") {
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replacement.append(":small_red_triangle:"_emoji)
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.append(" Caution\n")
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_ERROR));
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border_role = role_t::VCR_ERROR;
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} else {
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ensure(0);
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}
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block_text.erase(md[0]->sf_begin, md[0]->length());
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block_text.insert(0, replacement);
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}
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wrapped_text.append(block_text, &tws);
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auto quoted_lines = wrapped_text.split_lines();
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auto max_width = quoted_lines
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| lnav::itertools::map(&attr_line_t::column_width)
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| lnav::itertools::max(0);
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attr_line_t padded_text;
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for (auto& line : quoted_lines) {
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line.pad_to(max_width + 1)
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.with_attr_for_all(VC_ROLE.value(role_t::VCR_QUOTED_TEXT));
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padded_text.append(" ");
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auto start_index = padded_text.length();
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padded_text.append("\u258c"_quote_border);
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if (border_role) {
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padded_text.with_attr(string_attr{
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line_range{
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(int) start_index,
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(int) padded_text.length(),
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},
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VC_ROLE_FG.value(border_role.value()),
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});
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}
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padded_text.append(line).append("\n");
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}
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if (!padded_text.empty()) {
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padded_text.with_attr_for_all(SA_PREFORMATTED.value());
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last_block.append("\n").append(padded_text);
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}
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} else if (bl.is<MD_BLOCK_TABLE_DETAIL*>()) {
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auto* table_detail = bl.get<MD_BLOCK_TABLE_DETAIL*>();
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auto tab = std::move(this->ml_tables.back());
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this->ml_tables.pop_back();
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std::vector<ssize_t> max_col_sizes;
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block_text.clear();
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block_text.append("\n");
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max_col_sizes.resize(table_detail->col_count);
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for (size_t lpc = 0; lpc < table_detail->col_count; lpc++) {
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if (lpc >= tab.t_headers.size()) {
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continue;
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}
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max_col_sizes[lpc] = tab.t_headers[lpc].column_width();
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tab.t_headers[lpc].with_attr_for_all(
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VC_ROLE.value(role_t::VCR_TABLE_HEADER));
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}
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for (const auto& row : tab.t_rows) {
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for (size_t lpc = 0; lpc < table_detail->col_count; lpc++) {
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if (lpc >= row.r_columns.size()) {
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continue;
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}
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auto col_len = row.r_columns[lpc].column_width();
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if (col_len > max_col_sizes[lpc]) {
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max_col_sizes[lpc] = col_len;
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}
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}
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}
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auto col_sizes
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= max_col_sizes | lnav::itertools::map([](const auto& elem) {
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return std::min(elem, ssize_t{50});
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});
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auto full_width = col_sizes | lnav::itertools::sum();
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text_wrap_settings tws = {0, 50};
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std::vector<cell_lines> cells;
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size_t max_cell_lines = 0;
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for (size_t lpc = 0; lpc < tab.t_headers.size(); lpc++) {
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tws.with_width(col_sizes[lpc]);
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attr_line_t td_block;
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td_block.append(tab.t_headers[lpc], &tws);
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cells.emplace_back(td_block.rtrim().split_lines());
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if (cells.back().cl_lines.size() > max_cell_lines) {
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max_cell_lines = cells.back().cl_lines.size();
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}
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}
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for (size_t line_index = 0; line_index < max_cell_lines; line_index++) {
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for (const auto& [col, cell] : lnav::itertools::enumerate(cells)) {
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block_text.append(" ");
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if (line_index < cell.cl_lines.size()) {
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block_text.append(cell.cl_lines[line_index]);
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block_text.append(
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col_sizes[col]
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- cell.cl_lines[line_index].column_width(),
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' ');
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} else {
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block_text.append(col_sizes[col], ' ');
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}
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}
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block_text.append("\n")
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.append(lnav::roles::table_border(
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repeat("\u2550", full_width + col_sizes.size())))
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.append("\n");
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}
|
|
for (const auto& row : tab.t_rows) {
|
|
cells.clear();
|
|
max_cell_lines = 0;
|
|
for (size_t lpc = 0; lpc < row.r_columns.size(); lpc++) {
|
|
tws.with_width(col_sizes[lpc]);
|
|
|
|
attr_line_t td_block;
|
|
td_block.append(row.r_columns[lpc], &tws);
|
|
cells.emplace_back(td_block.rtrim().split_lines());
|
|
if (cells.back().cl_lines.size() > max_cell_lines) {
|
|
max_cell_lines = cells.back().cl_lines.size();
|
|
}
|
|
}
|
|
for (size_t line_index = 0; line_index < max_cell_lines;
|
|
line_index++)
|
|
{
|
|
size_t col = 0;
|
|
for (const auto& cell : cells) {
|
|
block_text.append(" ");
|
|
if (line_index < cell.cl_lines.size()) {
|
|
block_text.append(cell.cl_lines[line_index]);
|
|
if (col < col_sizes.size() - 1) {
|
|
block_text.append(
|
|
col_sizes[col]
|
|
- cell.cl_lines[line_index].column_width(),
|
|
' ');
|
|
}
|
|
} else if (col < col_sizes.size() - 1) {
|
|
block_text.append(col_sizes[col], ' ');
|
|
}
|
|
col += 1;
|
|
}
|
|
block_text.append("\n");
|
|
}
|
|
}
|
|
if (!block_text.empty()) {
|
|
block_text.with_attr_for_all(SA_PREFORMATTED.value());
|
|
last_block.append(block_text);
|
|
}
|
|
} else if (bl.is<block_th>()) {
|
|
this->ml_tables.back().t_headers.push_back(block_text);
|
|
} else if (bl.is<MD_BLOCK_TD_DETAIL*>()) {
|
|
this->ml_tables.back().t_rows.back().r_columns.push_back(block_text);
|
|
} else {
|
|
if (bl.is<block_html>()) {
|
|
if (startswith(block_text.get_string(), "<!--")) {
|
|
return Ok();
|
|
}
|
|
}
|
|
|
|
text_wrap_settings tws = {0, this->ml_blocks.size() == 1 ? 70 : 10000};
|
|
|
|
if (!last_block.empty()) {
|
|
last_block.append("\n");
|
|
}
|
|
last_block.append(block_text, &tws);
|
|
}
|
|
if (bl.is<block_doc>()) {
|
|
this->flush_footnotes();
|
|
}
|
|
return Ok();
|
|
}
|
|
|
|
Result<void, std::string>
|
|
md2attr_line::enter_span(const md4cpp::event_handler::span& sp)
|
|
{
|
|
auto& last_block = this->ml_blocks.back();
|
|
this->ml_span_starts.push_back(last_block.length());
|
|
if (sp.is<span_code>()) {
|
|
last_block.append(" ");
|
|
this->ml_code_depth += 1;
|
|
} else if (sp.is<MD_SPAN_IMG_DETAIL*>()) {
|
|
last_block.append(":framed_picture:"_emoji).append(" ");
|
|
}
|
|
return Ok();
|
|
}
|
|
|
|
Result<void, std::string>
|
|
md2attr_line::leave_span(const md4cpp::event_handler::span& sp)
|
|
{
|
|
auto& last_block = this->ml_blocks.back();
|
|
if (sp.is<span_code>()) {
|
|
this->ml_code_depth -= 1;
|
|
last_block.append(" ");
|
|
line_range lr{
|
|
static_cast<int>(this->ml_span_starts.back()),
|
|
static_cast<int>(last_block.length()),
|
|
};
|
|
last_block.with_attr({
|
|
lr,
|
|
VC_ROLE.value(role_t::VCR_INLINE_CODE),
|
|
});
|
|
last_block.with_attr({
|
|
lr,
|
|
SA_PREFORMATTED.value(),
|
|
});
|
|
} else if (sp.is<span_em>()) {
|
|
line_range lr{
|
|
static_cast<int>(this->ml_span_starts.back()),
|
|
static_cast<int>(last_block.length()),
|
|
};
|
|
#if defined(A_ITALIC)
|
|
last_block.with_attr({
|
|
lr,
|
|
VC_STYLE.value(text_attrs{(int32_t) A_ITALIC}),
|
|
});
|
|
#endif
|
|
} else if (sp.is<span_strong>()) {
|
|
line_range lr{
|
|
static_cast<int>(this->ml_span_starts.back()),
|
|
static_cast<int>(last_block.length()),
|
|
};
|
|
last_block.with_attr({
|
|
lr,
|
|
VC_STYLE.value(text_attrs{A_BOLD}),
|
|
});
|
|
} else if (sp.is<span_u>()) {
|
|
line_range lr{
|
|
static_cast<int>(this->ml_span_starts.back()),
|
|
static_cast<int>(last_block.length()),
|
|
};
|
|
last_block.with_attr({
|
|
lr,
|
|
VC_STYLE.value(text_attrs{A_UNDERLINE}),
|
|
});
|
|
} else if (sp.is<MD_SPAN_A_DETAIL*>()) {
|
|
const auto* a_detail = sp.get<MD_SPAN_A_DETAIL*>();
|
|
auto href_str = std::string(a_detail->href.text, a_detail->href.size);
|
|
line_range lr{
|
|
static_cast<int>(this->ml_span_starts.back()),
|
|
static_cast<int>(last_block.length()),
|
|
};
|
|
last_block.with_attr({
|
|
lr,
|
|
VC_HYPERLINK.value(href_str),
|
|
});
|
|
this->append_url_footnote(href_str);
|
|
} else if (sp.is<MD_SPAN_IMG_DETAIL*>()) {
|
|
const auto* img_detail = sp.get<MD_SPAN_IMG_DETAIL*>();
|
|
const auto src_str
|
|
= std::string(img_detail->src.text, img_detail->src.size);
|
|
|
|
this->append_url_footnote(src_str);
|
|
}
|
|
this->ml_span_starts.pop_back();
|
|
return Ok();
|
|
}
|
|
|
|
enum class border_side {
|
|
left,
|
|
right,
|
|
};
|
|
|
|
enum class border_line_width {
|
|
thin,
|
|
medium,
|
|
thick,
|
|
};
|
|
|
|
static const char*
|
|
left_border_string(border_line_width width)
|
|
{
|
|
switch (width) {
|
|
case border_line_width::thin:
|
|
return "\u258F";
|
|
case border_line_width::medium:
|
|
return "\u258E";
|
|
case border_line_width::thick:
|
|
return "\u258C";
|
|
}
|
|
}
|
|
|
|
static const char*
|
|
right_border_string(border_line_width width)
|
|
{
|
|
switch (width) {
|
|
case border_line_width::thin:
|
|
return "\u2595";
|
|
case border_line_width::medium:
|
|
return "\u2595";
|
|
case border_line_width::thick:
|
|
return "\u2590";
|
|
}
|
|
}
|
|
|
|
static attr_line_t
|
|
span_style_border(border_side side, const string_fragment& value)
|
|
{
|
|
static const auto NAME_THIN = string_fragment::from_const("thin");
|
|
static const auto NAME_MEDIUM = string_fragment::from_const("medium");
|
|
static const auto NAME_THICK = string_fragment::from_const("thick");
|
|
static const auto NAME_SOLID = string_fragment::from_const("solid");
|
|
static const auto NAME_DASHED = string_fragment::from_const("dashed");
|
|
static const auto NAME_DOTTED = string_fragment::from_const("dotted");
|
|
static const auto& vc = view_colors::singleton();
|
|
|
|
text_attrs border_attrs;
|
|
auto border_sf = value;
|
|
auto width = border_line_width::thick;
|
|
auto ch = side == border_side::left ? left_border_string(width)
|
|
: right_border_string(width);
|
|
|
|
while (!border_sf.empty()) {
|
|
auto border_split_res
|
|
= border_sf.split_when(string_fragment::tag1{' '});
|
|
auto bval = border_split_res.first;
|
|
|
|
if (bval == NAME_THIN) {
|
|
width = border_line_width::thin;
|
|
} else if (bval == NAME_MEDIUM) {
|
|
width = border_line_width::medium;
|
|
} else if (bval == NAME_THICK) {
|
|
width = border_line_width::thick;
|
|
} else if (bval == NAME_DOTTED) {
|
|
ch = "\u250A";
|
|
} else if (bval == NAME_DASHED) {
|
|
ch = "\u254F";
|
|
} else if (bval == NAME_SOLID) {
|
|
ch = side == border_side::left ? left_border_string(width)
|
|
: right_border_string(width);
|
|
} else {
|
|
auto color_res = styling::color_unit::from_str(bval);
|
|
if (color_res.isErr()) {
|
|
log_error("invalid border color: %.*s -- %s",
|
|
bval.length(),
|
|
bval.data(),
|
|
color_res.unwrapErr().c_str());
|
|
} else {
|
|
border_attrs.ta_fg_color = vc.match_color(color_res.unwrap());
|
|
}
|
|
}
|
|
border_sf = border_split_res.second;
|
|
}
|
|
return attr_line_t(ch).with_attr_for_all(VC_STYLE.value(border_attrs));
|
|
}
|
|
|
|
attr_line_t
|
|
md2attr_line::to_attr_line(const pugi::xml_node& doc)
|
|
{
|
|
static const auto NAME_IMG = string_fragment::from_const("img");
|
|
static const auto NAME_SPAN = string_fragment::from_const("span");
|
|
static const auto NAME_PRE = string_fragment::from_const("pre");
|
|
static const auto NAME_FG = string_fragment::from_const("color");
|
|
static const auto NAME_BG = string_fragment::from_const("background-color");
|
|
static const auto NAME_FONT_WEIGHT
|
|
= string_fragment::from_const("font-weight");
|
|
static const auto NAME_TEXT_DECO
|
|
= string_fragment::from_const("text-decoration");
|
|
static const auto NAME_BORDER_LEFT
|
|
= string_fragment::from_const("border-left");
|
|
static const auto NAME_BORDER_RIGHT
|
|
= string_fragment::from_const("border-right");
|
|
static const auto& vc = view_colors::singleton();
|
|
|
|
attr_line_t retval;
|
|
if (doc.children().empty()) {
|
|
retval.append(doc.text().get());
|
|
}
|
|
for (const auto& child : doc.children()) {
|
|
if (child.name() == NAME_IMG) {
|
|
std::optional<std::string> src_href;
|
|
std::string link_label;
|
|
auto img_src = child.attribute("src");
|
|
auto img_alt = child.attribute("alt");
|
|
if (img_alt) {
|
|
link_label = img_alt.value();
|
|
} else if (img_src) {
|
|
link_label = ghc::filesystem::path(img_src.value())
|
|
.filename()
|
|
.string();
|
|
} else {
|
|
link_label = "img";
|
|
}
|
|
|
|
if (img_src) {
|
|
auto src_value = std::string(img_src.value());
|
|
if (is_url(src_value)) {
|
|
src_href = src_value;
|
|
} else {
|
|
auto src_path = ghc::filesystem::path(src_value);
|
|
std::error_code ec;
|
|
|
|
if (src_path.is_relative() && this->ml_source_path) {
|
|
src_path = this->ml_source_path.value().parent_path()
|
|
/ src_path;
|
|
}
|
|
auto canon_path = ghc::filesystem::canonical(src_path, ec);
|
|
if (!ec) {
|
|
src_path = canon_path;
|
|
}
|
|
|
|
src_href = fmt::format(FMT_STRING("file://{}"),
|
|
src_path.string());
|
|
}
|
|
}
|
|
|
|
if (src_href) {
|
|
retval.append(":framed_picture:"_emoji)
|
|
.append(" ")
|
|
.append(
|
|
lnav::string::attrs::href(link_label, src_href.value()))
|
|
.append(to_superscript(this->ml_footnotes.size() + 1));
|
|
|
|
auto href
|
|
= attr_line_t()
|
|
.append(lnav::roles::hyperlink(src_href.value()))
|
|
.append(" ");
|
|
href.with_attr_for_all(
|
|
VC_ROLE.value(role_t::VCR_FOOTNOTE_TEXT));
|
|
href.with_attr_for_all(SA_PREFORMATTED.value());
|
|
this->ml_footnotes.emplace_back(href);
|
|
} else {
|
|
retval.append(link_label);
|
|
}
|
|
} else if (child.name() == NAME_SPAN) {
|
|
std::optional<attr_line_t> left_border;
|
|
std::optional<attr_line_t> right_border;
|
|
auto styled_span = attr_line_t(child.text().get());
|
|
|
|
auto span_class = child.attribute("class");
|
|
if (span_class) {
|
|
auto cl_iter = vc.vc_class_to_role.find(span_class.value());
|
|
|
|
if (cl_iter == vc.vc_class_to_role.end()) {
|
|
log_error("unknown span class: %s", span_class.value());
|
|
} else {
|
|
styled_span.with_attr_for_all(cl_iter->second);
|
|
}
|
|
}
|
|
text_attrs ta;
|
|
auto span_style = child.attribute("style");
|
|
if (span_style) {
|
|
auto style_sf = string_fragment::from_c_str(span_style.value());
|
|
|
|
while (!style_sf.empty()) {
|
|
auto split_res
|
|
= style_sf.split_when(string_fragment::tag1{';'});
|
|
auto colon_split_res = split_res.first.split_pair(
|
|
string_fragment::tag1{':'});
|
|
if (colon_split_res) {
|
|
auto key = colon_split_res->first.trim();
|
|
auto value = colon_split_res->second.trim();
|
|
|
|
if (key == NAME_FG) {
|
|
auto color_res
|
|
= styling::color_unit::from_str(value);
|
|
|
|
if (color_res.isErr()) {
|
|
log_error("invalid color: %.*s -- %s",
|
|
value.length(),
|
|
value.data(),
|
|
color_res.unwrapErr().c_str());
|
|
} else {
|
|
ta.ta_fg_color
|
|
= vc.match_color(color_res.unwrap());
|
|
}
|
|
} else if (key == NAME_BG) {
|
|
auto color_res
|
|
= styling::color_unit::from_str(value);
|
|
|
|
if (color_res.isErr()) {
|
|
log_error(
|
|
"invalid background-color: %.*s -- %s",
|
|
value.length(),
|
|
value.data(),
|
|
color_res.unwrapErr().c_str());
|
|
} else {
|
|
ta.ta_bg_color
|
|
= vc.match_color(color_res.unwrap());
|
|
}
|
|
} else if (key == NAME_FONT_WEIGHT) {
|
|
if (value == "bold" || value == "bolder") {
|
|
ta.ta_attrs |= A_BOLD;
|
|
}
|
|
} else if (key == NAME_TEXT_DECO) {
|
|
auto deco_sf = value;
|
|
|
|
while (!deco_sf.empty()) {
|
|
auto deco_split_res = deco_sf.split_when(
|
|
string_fragment::tag1{' '});
|
|
|
|
if (deco_split_res.first.trim() == "underline")
|
|
{
|
|
ta.ta_attrs |= A_UNDERLINE;
|
|
}
|
|
|
|
deco_sf = deco_split_res.second;
|
|
}
|
|
} else if (key == NAME_BORDER_LEFT) {
|
|
left_border
|
|
= span_style_border(border_side::left, value);
|
|
} else if (key == NAME_BORDER_RIGHT) {
|
|
right_border
|
|
= span_style_border(border_side::right, value);
|
|
}
|
|
}
|
|
style_sf = split_res.second;
|
|
}
|
|
if (!ta.empty()) {
|
|
styled_span.with_attr_for_all(VC_STYLE.value(ta));
|
|
}
|
|
}
|
|
if (left_border) {
|
|
retval.append(left_border.value());
|
|
}
|
|
retval.append(styled_span);
|
|
if (right_border) {
|
|
retval.append(right_border.value());
|
|
}
|
|
} else if (child.name() == NAME_PRE) {
|
|
auto pre_al = attr_line_t();
|
|
|
|
for (const auto& sub : child.children()) {
|
|
auto child_al = this->to_attr_line(sub);
|
|
if (pre_al.empty() && startswith(child_al.get_string(), "\n")) {
|
|
child_al.erase(0, 1);
|
|
}
|
|
pre_al.append(child_al);
|
|
}
|
|
pre_al.with_attr_for_all(SA_PREFORMATTED.value());
|
|
retval.append(pre_al);
|
|
} else {
|
|
retval.append(child.text().get());
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
Result<void, std::string>
|
|
md2attr_line::text(MD_TEXTTYPE tt, const string_fragment& sf)
|
|
{
|
|
static const auto& entity_map = md4cpp::get_xml_entity_map();
|
|
|
|
auto& last_block = this->ml_blocks.back();
|
|
|
|
switch (tt) {
|
|
case MD_TEXT_BR:
|
|
last_block.append("\n");
|
|
break;
|
|
case MD_TEXT_SOFTBR: {
|
|
if (!last_block.empty() && !isspace(last_block.get_string().back()))
|
|
{
|
|
last_block.append(" ");
|
|
}
|
|
break;
|
|
}
|
|
case MD_TEXT_ENTITY: {
|
|
auto xe_iter = entity_map.xem_entities.find(sf.to_string());
|
|
|
|
if (xe_iter != entity_map.xem_entities.end()) {
|
|
last_block.append(xe_iter->second.xe_chars);
|
|
}
|
|
break;
|
|
}
|
|
case MD_TEXT_HTML: {
|
|
auto last_block_start_length = last_block.length();
|
|
last_block.append(sf);
|
|
|
|
struct open_tag {
|
|
std::string ot_name;
|
|
};
|
|
struct close_tag {
|
|
std::string ct_name;
|
|
};
|
|
struct empty_tag {};
|
|
|
|
mapbox::util::variant<open_tag, close_tag, empty_tag> tag{
|
|
mapbox::util::no_init{}};
|
|
|
|
if (sf.startswith("</")) {
|
|
tag = close_tag{
|
|
sf.substr(2)
|
|
.split_when(string_fragment::tag1{'>'})
|
|
.first.to_string(),
|
|
};
|
|
} else if (sf.startswith("<")) {
|
|
if (sf.endswith("/>")) {
|
|
tag = empty_tag{};
|
|
} else {
|
|
tag = open_tag{
|
|
sf.substr(1)
|
|
.split_when(
|
|
[](char ch) { return ch == ' ' || ch == '>'; })
|
|
.first.to_string(),
|
|
};
|
|
}
|
|
}
|
|
|
|
if (tag.valid()) {
|
|
tag.match(
|
|
[this, last_block_start_length](const open_tag& ot) {
|
|
if (!this->ml_html_starts.empty()) {
|
|
return;
|
|
}
|
|
this->ml_html_starts.emplace_back(
|
|
ot.ot_name, last_block_start_length);
|
|
},
|
|
[this, &last_block](const close_tag& ct) {
|
|
if (this->ml_html_starts.empty()) {
|
|
return;
|
|
}
|
|
if (this->ml_html_starts.back().first != ct.ct_name) {
|
|
return;
|
|
}
|
|
|
|
const auto html_span = last_block.get_string().substr(
|
|
this->ml_html_starts.back().second);
|
|
|
|
pugi::xml_document doc;
|
|
|
|
auto load_res = doc.load_string(html_span.c_str());
|
|
if (!load_res) {
|
|
log_error("XML parsing failure at %d: %s",
|
|
load_res.offset,
|
|
load_res.description());
|
|
|
|
auto sf = string_fragment::from_str(html_span);
|
|
auto error_line = sf.find_boundaries_around(
|
|
load_res.offset, string_fragment::tag1{'\n'});
|
|
log_error(" %.*s",
|
|
error_line.length(),
|
|
error_line.data());
|
|
} else {
|
|
last_block.erase(
|
|
this->ml_html_starts.back().second);
|
|
last_block.append(this->to_attr_line(doc));
|
|
}
|
|
this->ml_html_starts.pop_back();
|
|
},
|
|
[this, &sf, &last_block, last_block_start_length](
|
|
const empty_tag&) {
|
|
const auto html_span = sf.to_string();
|
|
|
|
pugi::xml_document doc;
|
|
|
|
auto load_res = doc.load_string(html_span.c_str());
|
|
if (!load_res) {
|
|
log_error("XML parsing failure at %d: %s",
|
|
load_res.offset,
|
|
load_res.description());
|
|
|
|
auto error_line = sf.find_boundaries_around(
|
|
load_res.offset, string_fragment::tag1{'\n'});
|
|
log_error(" %.*s",
|
|
error_line.length(),
|
|
error_line.data());
|
|
} else {
|
|
last_block.erase(last_block_start_length);
|
|
last_block.append(this->to_attr_line(doc));
|
|
}
|
|
});
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
static const auto REPL_RE = lnav::pcre2pp::code::from_const(
|
|
R"(-{2,3}|:[^:\s]*(?:::[^:\s]*)*:)");
|
|
static const auto& emojis = md4cpp::get_emoji_map();
|
|
|
|
if (this->ml_code_depth > 0) {
|
|
last_block.append(sf);
|
|
return Ok();
|
|
}
|
|
|
|
std::string span_text;
|
|
|
|
auto loop_res = REPL_RE.capture_from(sf).for_each(
|
|
[&span_text](const lnav::pcre2pp::match_data& md) {
|
|
span_text += md.leading();
|
|
|
|
auto matched = *md[0];
|
|
|
|
if (matched == "--") {
|
|
span_text.append("\u2013");
|
|
} else if (matched == "---") {
|
|
span_text.append("\u2014");
|
|
} else if (matched.startswith(":")) {
|
|
auto em_iter = emojis.em_shortname2emoji.find(
|
|
matched.to_string());
|
|
if (em_iter == emojis.em_shortname2emoji.end()) {
|
|
span_text += matched;
|
|
} else {
|
|
span_text.append(em_iter->second.get().e_value);
|
|
}
|
|
}
|
|
});
|
|
|
|
if (loop_res.isOk()) {
|
|
span_text += loop_res.unwrap();
|
|
} else {
|
|
log_error("span replacement regex failed: %d",
|
|
loop_res.unwrapErr().e_error_code);
|
|
}
|
|
|
|
text_wrap_settings tws
|
|
= {0, this->ml_blocks.size() == 1 ? 70 : 10000};
|
|
|
|
last_block.append(span_text, &tws);
|
|
break;
|
|
}
|
|
}
|
|
return Ok();
|
|
}
|
|
|
|
void
|
|
md2attr_line::append_url_footnote(std::string href_str)
|
|
{
|
|
auto is_internal = startswith(href_str, "#");
|
|
auto& last_block = this->ml_blocks.back();
|
|
last_block.with_attr(string_attr{
|
|
line_range{
|
|
(int) this->ml_span_starts.back(),
|
|
(int) last_block.length(),
|
|
},
|
|
VC_STYLE.value(text_attrs{A_UNDERLINE}),
|
|
});
|
|
if (is_internal) {
|
|
return;
|
|
}
|
|
|
|
if (this->ml_last_superscript_index == last_block.length()) {
|
|
last_block.append("\u02d2");
|
|
}
|
|
last_block.append(to_superscript(this->ml_footnotes.size() + 1));
|
|
this->ml_last_superscript_index = last_block.length();
|
|
if (this->ml_source_path && href_str.find(':') == std::string::npos) {
|
|
auto link_path = ghc::filesystem::absolute(
|
|
this->ml_source_path.value().parent_path() / href_str);
|
|
|
|
href_str = fmt::format(FMT_STRING("file://{}"), link_path.string());
|
|
}
|
|
|
|
auto href
|
|
= attr_line_t().append(lnav::roles::hyperlink(href_str)).append(" ");
|
|
href.with_attr_for_all(VC_ROLE.value(role_t::VCR_FOOTNOTE_TEXT));
|
|
href.with_attr_for_all(SA_PREFORMATTED.value());
|
|
this->ml_footnotes.emplace_back(href);
|
|
}
|