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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:55 +0000
commit5068d34c08f951a7ea6257d305a1627b09a95817 (patch)
tree08213e2be853396a3b07ce15dbe222644dcd9a89 /src/third-party/CLI/Config.hpp
parentInitial commit. (diff)
downloadlnav-upstream.tar.xz
lnav-upstream.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/third-party/CLI/Config.hpp396
1 files changed, 396 insertions, 0 deletions
diff --git a/src/third-party/CLI/Config.hpp b/src/third-party/CLI/Config.hpp
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+// Copyright (c) 2017-2022, University of Cincinnati, developed by Henry Schreiner
+// under NSF AWARD 1414736 and by the respective contributors.
+// All rights reserved.
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#pragma once
+
+// [CLI11:public_includes:set]
+#include <algorithm>
+#include <fstream>
+#include <iostream>
+#include <string>
+#include <utility>
+#include <vector>
+// [CLI11:public_includes:set]
+
+#include "App.hpp"
+#include "ConfigFwd.hpp"
+#include "StringTools.hpp"
+
+namespace CLI {
+// [CLI11:config_hpp:verbatim]
+namespace detail {
+
+inline std::string convert_arg_for_ini(const std::string &arg, char stringQuote = '"', char characterQuote = '\'') {
+ if(arg.empty()) {
+ return std::string(2, stringQuote);
+ }
+ // some specifically supported strings
+ if(arg == "true" || arg == "false" || arg == "nan" || arg == "inf") {
+ return arg;
+ }
+ // floating point conversion can convert some hex codes, but don't try that here
+ if(arg.compare(0, 2, "0x") != 0 && arg.compare(0, 2, "0X") != 0) {
+ double val;
+ if(detail::lexical_cast(arg, val)) {
+ return arg;
+ }
+ }
+ // just quote a single non numeric character
+ if(arg.size() == 1) {
+ return std::string(1, characterQuote) + arg + characterQuote;
+ }
+ // handle hex, binary or octal arguments
+ if(arg.front() == '0') {
+ if(arg[1] == 'x') {
+ if(std::all_of(arg.begin() + 2, arg.end(), [](char x) {
+ return (x >= '0' && x <= '9') || (x >= 'A' && x <= 'F') || (x >= 'a' && x <= 'f');
+ })) {
+ return arg;
+ }
+ } else if(arg[1] == 'o') {
+ if(std::all_of(arg.begin() + 2, arg.end(), [](char x) { return (x >= '0' && x <= '7'); })) {
+ return arg;
+ }
+ } else if(arg[1] == 'b') {
+ if(std::all_of(arg.begin() + 2, arg.end(), [](char x) { return (x == '0' || x == '1'); })) {
+ return arg;
+ }
+ }
+ }
+ if(arg.find_first_of(stringQuote) == std::string::npos) {
+ return std::string(1, stringQuote) + arg + stringQuote;
+ } else {
+ return characterQuote + arg + characterQuote;
+ }
+}
+
+/// Comma separated join, adds quotes if needed
+inline std::string ini_join(const std::vector<std::string> &args,
+ char sepChar = ',',
+ char arrayStart = '[',
+ char arrayEnd = ']',
+ char stringQuote = '"',
+ char characterQuote = '\'') {
+ std::string joined;
+ if(args.size() > 1 && arrayStart != '\0') {
+ joined.push_back(arrayStart);
+ }
+ std::size_t start = 0;
+ for(const auto &arg : args) {
+ if(start++ > 0) {
+ joined.push_back(sepChar);
+ if(isspace(sepChar) == 0) {
+ joined.push_back(' ');
+ }
+ }
+ joined.append(convert_arg_for_ini(arg, stringQuote, characterQuote));
+ }
+ if(args.size() > 1 && arrayEnd != '\0') {
+ joined.push_back(arrayEnd);
+ }
+ return joined;
+}
+
+inline std::vector<std::string> generate_parents(const std::string &section, std::string &name, char parentSeparator) {
+ std::vector<std::string> parents;
+ if(detail::to_lower(section) != "default") {
+ if(section.find(parentSeparator) != std::string::npos) {
+ parents = detail::split(section, parentSeparator);
+ } else {
+ parents = {section};
+ }
+ }
+ if(name.find(parentSeparator) != std::string::npos) {
+ std::vector<std::string> plist = detail::split(name, parentSeparator);
+ name = plist.back();
+ detail::remove_quotes(name);
+ plist.pop_back();
+ parents.insert(parents.end(), plist.begin(), plist.end());
+ }
+
+ // clean up quotes on the parents
+ for(auto &parent : parents) {
+ detail::remove_quotes(parent);
+ }
+ return parents;
+}
+
+/// assuming non default segments do a check on the close and open of the segments in a configItem structure
+inline void
+checkParentSegments(std::vector<ConfigItem> &output, const std::string &currentSection, char parentSeparator) {
+
+ std::string estring;
+ auto parents = detail::generate_parents(currentSection, estring, parentSeparator);
+ if(!output.empty() && output.back().name == "--") {
+ std::size_t msize = (parents.size() > 1U) ? parents.size() : 2;
+ while(output.back().parents.size() >= msize) {
+ output.push_back(output.back());
+ output.back().parents.pop_back();
+ }
+
+ if(parents.size() > 1) {
+ std::size_t common = 0;
+ std::size_t mpair = (std::min)(output.back().parents.size(), parents.size() - 1);
+ for(std::size_t ii = 0; ii < mpair; ++ii) {
+ if(output.back().parents[ii] != parents[ii]) {
+ break;
+ }
+ ++common;
+ }
+ if(common == mpair) {
+ output.pop_back();
+ } else {
+ while(output.back().parents.size() > common + 1) {
+ output.push_back(output.back());
+ output.back().parents.pop_back();
+ }
+ }
+ for(std::size_t ii = common; ii < parents.size() - 1; ++ii) {
+ output.emplace_back();
+ output.back().parents.assign(parents.begin(), parents.begin() + static_cast<std::ptrdiff_t>(ii) + 1);
+ output.back().name = "++";
+ }
+ }
+ } else if(parents.size() > 1) {
+ for(std::size_t ii = 0; ii < parents.size() - 1; ++ii) {
+ output.emplace_back();
+ output.back().parents.assign(parents.begin(), parents.begin() + static_cast<std::ptrdiff_t>(ii) + 1);
+ output.back().name = "++";
+ }
+ }
+
+ // insert a section end which is just an empty items_buffer
+ output.emplace_back();
+ output.back().parents = std::move(parents);
+ output.back().name = "++";
+}
+} // namespace detail
+
+inline std::vector<ConfigItem> ConfigBase::from_config(std::istream &input) const {
+ std::string line;
+ std::string currentSection = "default";
+ std::string previousSection = "default";
+ std::vector<ConfigItem> output;
+ bool isDefaultArray = (arrayStart == '[' && arrayEnd == ']' && arraySeparator == ',');
+ bool isINIArray = (arrayStart == '\0' || arrayStart == ' ') && arrayStart == arrayEnd;
+ bool inSection{false};
+ char aStart = (isINIArray) ? '[' : arrayStart;
+ char aEnd = (isINIArray) ? ']' : arrayEnd;
+ char aSep = (isINIArray && arraySeparator == ' ') ? ',' : arraySeparator;
+ int currentSectionIndex{0};
+ while(getline(input, line)) {
+ std::vector<std::string> items_buffer;
+ std::string name;
+
+ detail::trim(line);
+ std::size_t len = line.length();
+ // lines have to be at least 3 characters to have any meaning to CLI just skip the rest
+ if(len < 3) {
+ continue;
+ }
+ if(line.front() == '[' && line.back() == ']') {
+ if(currentSection != "default") {
+ // insert a section end which is just an empty items_buffer
+ output.emplace_back();
+ output.back().parents = detail::generate_parents(currentSection, name, parentSeparatorChar);
+ output.back().name = "--";
+ }
+ currentSection = line.substr(1, len - 2);
+ // deal with double brackets for TOML
+ if(currentSection.size() > 1 && currentSection.front() == '[' && currentSection.back() == ']') {
+ currentSection = currentSection.substr(1, currentSection.size() - 2);
+ }
+ if(detail::to_lower(currentSection) == "default") {
+ currentSection = "default";
+ } else {
+ detail::checkParentSegments(output, currentSection, parentSeparatorChar);
+ }
+ inSection = false;
+ if(currentSection == previousSection) {
+ ++currentSectionIndex;
+ } else {
+ currentSectionIndex = 0;
+ previousSection = currentSection;
+ }
+ continue;
+ }
+
+ // comment lines
+ if(line.front() == ';' || line.front() == '#' || line.front() == commentChar) {
+ continue;
+ }
+
+ // Find = in string, split and recombine
+ auto pos = line.find(valueDelimiter);
+ if(pos != std::string::npos) {
+ name = detail::trim_copy(line.substr(0, pos));
+ std::string item = detail::trim_copy(line.substr(pos + 1));
+ auto cloc = item.find(commentChar);
+ if(cloc != std::string::npos) {
+ item.erase(cloc, std::string::npos);
+ detail::trim(item);
+ }
+ if(item.size() > 1 && item.front() == aStart) {
+ for(std::string multiline; item.back() != aEnd && std::getline(input, multiline);) {
+ detail::trim(multiline);
+ item += multiline;
+ }
+ items_buffer = detail::split_up(item.substr(1, item.length() - 2), aSep);
+ } else if((isDefaultArray || isINIArray) && item.find_first_of(aSep) != std::string::npos) {
+ items_buffer = detail::split_up(item, aSep);
+ } else if((isDefaultArray || isINIArray) && item.find_first_of(' ') != std::string::npos) {
+ items_buffer = detail::split_up(item);
+ } else {
+ items_buffer = {item};
+ }
+ } else {
+ name = detail::trim_copy(line);
+ auto cloc = name.find(commentChar);
+ if(cloc != std::string::npos) {
+ name.erase(cloc, std::string::npos);
+ detail::trim(name);
+ }
+
+ items_buffer = {"true"};
+ }
+ if(name.find(parentSeparatorChar) == std::string::npos) {
+ detail::remove_quotes(name);
+ }
+ // clean up quotes on the items
+ for(auto &it : items_buffer) {
+ detail::remove_quotes(it);
+ }
+
+ std::vector<std::string> parents = detail::generate_parents(currentSection, name, parentSeparatorChar);
+ if(parents.size() > maximumLayers) {
+ continue;
+ }
+ if(!configSection.empty() && !inSection) {
+ if(parents.empty() || parents.front() != configSection) {
+ continue;
+ }
+ if(configIndex >= 0 && currentSectionIndex != configIndex) {
+ continue;
+ }
+ parents.erase(parents.begin());
+ inSection = true;
+ }
+ if(!output.empty() && name == output.back().name && parents == output.back().parents) {
+ output.back().inputs.insert(output.back().inputs.end(), items_buffer.begin(), items_buffer.end());
+ } else {
+ output.emplace_back();
+ output.back().parents = std::move(parents);
+ output.back().name = std::move(name);
+ output.back().inputs = std::move(items_buffer);
+ }
+ }
+ if(currentSection != "default") {
+ // insert a section end which is just an empty items_buffer
+ std::string ename;
+ output.emplace_back();
+ output.back().parents = detail::generate_parents(currentSection, ename, parentSeparatorChar);
+ output.back().name = "--";
+ while(output.back().parents.size() > 1) {
+ output.push_back(output.back());
+ output.back().parents.pop_back();
+ }
+ }
+ return output;
+}
+
+inline std::string
+ConfigBase::to_config(const App *app, bool default_also, bool write_description, std::string prefix) const {
+ std::stringstream out;
+ std::string commentLead;
+ commentLead.push_back(commentChar);
+ commentLead.push_back(' ');
+
+ std::vector<std::string> groups = app->get_groups();
+ bool defaultUsed = false;
+ groups.insert(groups.begin(), std::string("Options"));
+ if(write_description && (app->get_configurable() || app->get_parent() == nullptr || app->get_name().empty())) {
+ out << commentLead << detail::fix_newlines(commentLead, app->get_description()) << '\n';
+ }
+ for(auto &group : groups) {
+ if(group == "Options" || group.empty()) {
+ if(defaultUsed) {
+ continue;
+ }
+ defaultUsed = true;
+ }
+ if(write_description && group != "Options" && !group.empty()) {
+ out << '\n' << commentLead << group << " Options\n";
+ }
+ for(const Option *opt : app->get_options({})) {
+
+ // Only process options that are configurable
+ if(opt->get_configurable()) {
+ if(opt->get_group() != group) {
+ if(!(group == "Options" && opt->get_group().empty())) {
+ continue;
+ }
+ }
+ std::string name = prefix + opt->get_single_name();
+ std::string value = detail::ini_join(
+ opt->reduced_results(), arraySeparator, arrayStart, arrayEnd, stringQuote, characterQuote);
+
+ if(value.empty() && default_also) {
+ if(!opt->get_default_str().empty()) {
+ value = detail::convert_arg_for_ini(opt->get_default_str(), stringQuote, characterQuote);
+ } else if(opt->get_expected_min() == 0) {
+ value = "false";
+ } else if(opt->get_run_callback_for_default()) {
+ value = "\"\""; // empty string default value
+ }
+ }
+
+ if(!value.empty()) {
+ if(write_description && opt->has_description()) {
+ out << '\n';
+ out << commentLead << detail::fix_newlines(commentLead, opt->get_description()) << '\n';
+ }
+ out << name << valueDelimiter << value << '\n';
+ }
+ }
+ }
+ }
+ auto subcommands = app->get_subcommands({});
+ for(const App *subcom : subcommands) {
+ if(subcom->get_name().empty()) {
+ if(write_description && !subcom->get_group().empty()) {
+ out << '\n' << commentLead << subcom->get_group() << " Options\n";
+ }
+ out << to_config(subcom, default_also, write_description, prefix);
+ }
+ }
+
+ for(const App *subcom : subcommands) {
+ if(!subcom->get_name().empty()) {
+ if(subcom->get_configurable() && app->got_subcommand(subcom)) {
+ if(!prefix.empty() || app->get_parent() == nullptr) {
+ out << '[' << prefix << subcom->get_name() << "]\n";
+ } else {
+ std::string subname = app->get_name() + parentSeparatorChar + subcom->get_name();
+ auto p = app->get_parent();
+ while(p->get_parent() != nullptr) {
+ subname = p->get_name() + parentSeparatorChar + subname;
+ p = p->get_parent();
+ }
+ out << '[' << subname << "]\n";
+ }
+ out << to_config(subcom, default_also, write_description, "");
+ } else {
+ out << to_config(
+ subcom, default_also, write_description, prefix + subcom->get_name() + parentSeparatorChar);
+ }
+ }
+ }
+
+ return out.str();
+}
+
+// [CLI11:config_hpp:end]
+} // namespace CLI