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121 lines
5.2 KiB
C++
121 lines
5.2 KiB
C++
/**
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* Copyright (c) 2024, 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 <stdlib.h>
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#include "base/fs_util.hh"
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#include "document.sections.hh"
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#include "fmt/color.h"
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int
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main(int argc, char* argv[])
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{
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int retval = EXIT_SUCCESS;
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if (argc < 2) {
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fprintf(stderr, "error: expecting file to discover\n");
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retval = EXIT_FAILURE;
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} else {
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const auto fn = ghc::filesystem::path(argv[1]);
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auto read_res = lnav::filesystem::read_file(fn);
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if (read_res.isErr()) {
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fprintf(stderr,
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"error: unable to read %s -- %s\n",
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fn.c_str(),
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read_res.unwrapErr().c_str());
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retval = EXIT_FAILURE;
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} else {
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auto content = attr_line_t(read_res.unwrap());
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const auto& content_sf
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= string_fragment::from_str(content.get_string());
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auto tf = detect_text_format(content_sf, fn);
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auto lr = line_range{0, static_cast<int>(content.length())};
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auto meta = lnav::document::discover_structure(content, lr, tf);
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auto remaining = content_sf;
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while (!remaining.empty()) {
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auto line_pair
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= remaining.split_when(string_fragment::tag1{'\n'});
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auto line_sf = line_pair.first;
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fmt::print(FMT_STRING("{}\n"), line_sf);
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size_t indent = 0;
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meta.m_sections_tree.visit_overlapping(
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line_sf.sf_begin,
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line_sf.sf_end,
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[&line_sf, &indent](const auto& iv) {
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if (iv.start < line_sf.sf_begin) {
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return;
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}
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auto this_indent = iv.start - line_sf.sf_begin;
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if (this_indent < indent) {
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return;
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}
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auto indent_diff = this_indent - indent;
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indent = this_indent;
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fmt::print(FMT_STRING("{}^"),
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std::string(indent_diff, ' '));
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if (iv.stop >= line_sf.sf_end + 1) {
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fmt::print(FMT_STRING(" [{}:{}) - {}"),
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iv.start,
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iv.stop,
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iv.value);
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return;
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}
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auto dot_len = iv.stop - iv.start - 1;
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fmt::print(FMT_STRING("{}^"),
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std::string(dot_len, '-'));
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fmt::print(FMT_STRING(" [{}:{})"), iv.start, iv.stop);
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});
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fmt::print(FMT_STRING("\nPath for line[{}:{}): "),
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line_sf.sf_begin,
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line_sf.sf_end);
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meta.m_sections_tree.visit_overlapping(
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line_sf.sf_begin,
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line_sf.sf_end,
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[&line_sf](const auto& iv) {
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fmt::print(
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fmt::fg(iv.start < line_sf.sf_begin
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? fmt::terminal_color::yellow
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: fmt::terminal_color::green),
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FMT_STRING("\uff1a{}"),
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iv.value.match(
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[](const std::string& str) { return str; },
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[](size_t ind) {
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return fmt::format(FMT_STRING("[{}]"), ind);
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}));
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});
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fmt::print(FMT_STRING("\n"));
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remaining = line_pair.second;
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}
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}
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}
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return retval;
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}
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