mirror of https://github.com/tstack/lnav.git
130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
/**
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* Copyright (c) 2017, 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 ON
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* 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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* @file highlighter.hh
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*/
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#ifndef highlighter_hh
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#define highlighter_hh
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#include "optional.hpp"
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#include "pcrepp/pcrepp.hh"
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#include "text_format.hh"
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#include "view_curses.hh"
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struct highlighter {
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highlighter()
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: h_code(nullptr),
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h_code_extra(nullptr) { };
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explicit highlighter(pcre *code)
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: h_code(code)
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{
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pcre_refcount(this->h_code, 1);
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this->study();
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};
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highlighter(const highlighter &other);
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highlighter &operator=(const highlighter &other);
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virtual ~highlighter() {
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if (this->h_code != nullptr && pcre_refcount(this->h_code, -1) == 0) {
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free(this->h_code);
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this->h_code = nullptr;
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}
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free(this->h_code_extra);
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};
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void study();
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highlighter &with_pattern(const std::string &pattern) {
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this->h_pattern = pattern;
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return *this;
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}
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highlighter &with_role(view_colors::role_t role) {
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this->h_role = role;
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return *this;
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};
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highlighter &with_attrs(int attrs) {
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this->h_attrs = attrs;
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return *this;
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};
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highlighter &with_text_format(text_format_t tf) {
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this->h_text_format = tf;
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return *this;
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}
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highlighter &with_format_name(intern_string_t name) {
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this->h_format_name = name;
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return *this;
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};
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highlighter &with_color(const styling::color_unit &fg, const styling::color_unit &bg) {
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this->h_fg = fg;
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this->h_bg = bg;
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return *this;
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};
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highlighter &with_nestable(bool val) {
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this->h_nestable = val;
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return *this;
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}
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int get_attrs() const
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{
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ensure(this->h_attrs != -1);
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return this->h_attrs;
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};
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void annotate(attr_line_t &al, int start) const;
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std::string h_pattern;
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view_colors::role_t h_role{view_colors::VCR_NONE};
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styling::color_unit h_fg{styling::color_unit::make_empty()};
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styling::color_unit h_bg{styling::color_unit::make_empty()};
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pcre *h_code;
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pcre_extra *h_code_extra;
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int h_attrs{-1};
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text_format_t h_text_format{text_format_t::TF_UNKNOWN};
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intern_string_t h_format_name;
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bool h_nestable{true};
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};
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#endif
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