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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
655 lines
21 KiB
C++
655 lines
21 KiB
C++
/**************************************************************************/
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/* syntax_highlighter.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "syntax_highlighter.h"
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#include "core/object/script_language.h"
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#include "scene/gui/text_edit.h"
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Dictionary SyntaxHighlighter::get_line_syntax_highlighting(int p_line) {
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if (highlighting_cache.has(p_line)) {
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return highlighting_cache[p_line];
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}
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Dictionary color_map;
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if (text_edit == nullptr) {
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return color_map;
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}
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if (!GDVIRTUAL_CALL(_get_line_syntax_highlighting, p_line, color_map)) {
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color_map = _get_line_syntax_highlighting_impl(p_line);
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}
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highlighting_cache[p_line] = color_map;
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return color_map;
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}
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void SyntaxHighlighter::_lines_edited_from(int p_from_line, int p_to_line) {
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if (highlighting_cache.size() < 1) {
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return;
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}
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int cache_size = highlighting_cache.back()->key();
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for (int i = MIN(p_from_line, p_to_line) - 1; i <= cache_size; i++) {
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if (highlighting_cache.has(i)) {
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highlighting_cache.erase(i);
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}
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}
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}
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void SyntaxHighlighter::clear_highlighting_cache() {
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highlighting_cache.clear();
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if (GDVIRTUAL_CALL(_clear_highlighting_cache)) {
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return;
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}
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_clear_highlighting_cache();
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}
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void SyntaxHighlighter::update_cache() {
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clear_highlighting_cache();
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if (text_edit == nullptr) {
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return;
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}
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if (GDVIRTUAL_CALL(_update_cache)) {
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return;
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}
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_update_cache();
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}
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void SyntaxHighlighter::set_text_edit(TextEdit *p_text_edit) {
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if (text_edit && ObjectDB::get_instance(text_edit_instance_id)) {
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text_edit->disconnect("lines_edited_from", callable_mp(this, &SyntaxHighlighter::_lines_edited_from));
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}
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text_edit = p_text_edit;
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if (p_text_edit == nullptr) {
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return;
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}
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text_edit_instance_id = text_edit->get_instance_id();
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text_edit->connect("lines_edited_from", callable_mp(this, &SyntaxHighlighter::_lines_edited_from));
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update_cache();
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}
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TextEdit *SyntaxHighlighter::get_text_edit() {
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return text_edit;
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}
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void SyntaxHighlighter::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_line_syntax_highlighting", "line"), &SyntaxHighlighter::get_line_syntax_highlighting);
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ClassDB::bind_method(D_METHOD("update_cache"), &SyntaxHighlighter::update_cache);
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ClassDB::bind_method(D_METHOD("clear_highlighting_cache"), &SyntaxHighlighter::clear_highlighting_cache);
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ClassDB::bind_method(D_METHOD("get_text_edit"), &SyntaxHighlighter::get_text_edit);
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GDVIRTUAL_BIND(_get_line_syntax_highlighting, "line")
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GDVIRTUAL_BIND(_clear_highlighting_cache)
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GDVIRTUAL_BIND(_update_cache)
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}
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////////////////////////////////////////////////////////////////////////////////
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Dictionary CodeHighlighter::_get_line_syntax_highlighting_impl(int p_line) {
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Dictionary color_map;
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bool prev_is_char = false;
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bool prev_is_number = false;
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bool in_keyword = false;
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bool in_word = false;
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bool in_function_name = false;
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bool in_member_variable = false;
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bool is_hex_notation = false;
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Color keyword_color;
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Color color;
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color_region_cache[p_line] = -1;
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int in_region = -1;
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if (p_line != 0) {
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int prev_region_line = p_line - 1;
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while (prev_region_line > 0 && !color_region_cache.has(prev_region_line)) {
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prev_region_line--;
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}
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for (int i = prev_region_line; i < p_line - 1; i++) {
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get_line_syntax_highlighting(i);
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}
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if (!color_region_cache.has(p_line - 1)) {
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get_line_syntax_highlighting(p_line - 1);
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}
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in_region = color_region_cache[p_line - 1];
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}
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const String &str = text_edit->get_line(p_line);
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const int line_length = str.length();
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Color prev_color;
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if (in_region != -1 && str.length() == 0) {
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color_region_cache[p_line] = in_region;
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}
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for (int j = 0; j < line_length; j++) {
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Dictionary highlighter_info;
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color = font_color;
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bool is_char = !is_symbol(str[j]);
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bool is_a_symbol = is_symbol(str[j]);
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bool is_number = is_digit(str[j]);
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/* color regions */
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if (is_a_symbol || in_region != -1) {
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int from = j;
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if (in_region == -1) {
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for (; from < line_length; from++) {
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if (str[from] == '\\') {
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from++;
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continue;
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}
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break;
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}
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}
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if (from != line_length) {
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/* check if we are in entering a region */
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if (in_region == -1) {
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for (int c = 0; c < color_regions.size(); c++) {
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/* check there is enough room */
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int chars_left = line_length - from;
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int start_key_length = color_regions[c].start_key.length();
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int end_key_length = color_regions[c].end_key.length();
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if (chars_left < start_key_length) {
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continue;
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}
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/* search the line */
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bool match = true;
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const char32_t *start_key = color_regions[c].start_key.get_data();
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for (int k = 0; k < start_key_length; k++) {
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if (start_key[k] != str[from + k]) {
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match = false;
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break;
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}
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}
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if (!match) {
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continue;
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}
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in_region = c;
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from += start_key_length;
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/* check if it's the whole line */
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if (end_key_length == 0 || color_regions[c].line_only || from + end_key_length > line_length) {
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if (from + end_key_length > line_length && (color_regions[in_region].start_key == "\"" || color_regions[in_region].start_key == "\'")) {
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// If it's key length and there is a '\', dont skip to highlight esc chars.
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if (str.find("\\", from) >= 0) {
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break;
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}
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}
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prev_color = color_regions[in_region].color;
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highlighter_info["color"] = color_regions[c].color;
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color_map[j] = highlighter_info;
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j = line_length;
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if (!color_regions[c].line_only) {
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color_region_cache[p_line] = c;
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}
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}
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break;
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}
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if (j == line_length) {
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continue;
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}
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}
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/* if we are in one find the end key */
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if (in_region != -1) {
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bool is_string = (color_regions[in_region].start_key == "\"" || color_regions[in_region].start_key == "\'");
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Color region_color = color_regions[in_region].color;
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prev_color = region_color;
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highlighter_info["color"] = region_color;
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color_map[j] = highlighter_info;
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/* search the line */
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int region_end_index = -1;
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int end_key_length = color_regions[in_region].end_key.length();
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const char32_t *end_key = color_regions[in_region].end_key.get_data();
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for (; from < line_length; from++) {
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if (line_length - from < end_key_length) {
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// Don't break if '\' to highlight esc chars.
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if (!is_string || str.find("\\", from) < 0) {
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break;
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}
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}
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if (!is_symbol(str[from])) {
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continue;
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}
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if (str[from] == '\\') {
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if (is_string) {
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Dictionary escape_char_highlighter_info;
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escape_char_highlighter_info["color"] = symbol_color;
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color_map[from] = escape_char_highlighter_info;
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}
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from++;
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if (is_string) {
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Dictionary region_continue_highlighter_info;
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prev_color = region_color;
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region_continue_highlighter_info["color"] = region_color;
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color_map[from + 1] = region_continue_highlighter_info;
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}
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continue;
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}
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region_end_index = from;
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for (int k = 0; k < end_key_length; k++) {
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if (end_key[k] != str[from + k]) {
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region_end_index = -1;
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break;
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}
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}
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if (region_end_index != -1) {
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break;
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}
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}
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j = from + (end_key_length - 1);
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if (region_end_index == -1) {
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color_region_cache[p_line] = in_region;
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}
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in_region = -1;
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prev_is_char = false;
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prev_is_number = false;
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continue;
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}
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}
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}
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// Allow ABCDEF in hex notation.
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if (is_hex_notation && (is_hex_digit(str[j]) || is_number)) {
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is_number = true;
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} else {
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is_hex_notation = false;
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}
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// Check for dot or underscore or 'x' for hex notation in floating point number or 'e' for scientific notation.
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if ((str[j] == '.' || str[j] == 'x' || str[j] == '_' || str[j] == 'f' || str[j] == 'e') && !in_word && prev_is_number && !is_number) {
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is_number = true;
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is_a_symbol = false;
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is_char = false;
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if (str[j] == 'x' && str[j - 1] == '0') {
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is_hex_notation = true;
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}
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}
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if (!in_word && (is_ascii_char(str[j]) || is_underscore(str[j])) && !is_number) {
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in_word = true;
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}
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if ((in_keyword || in_word) && !is_hex_notation) {
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is_number = false;
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}
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if (is_a_symbol && str[j] != '.' && in_word) {
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in_word = false;
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}
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if (!is_char) {
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in_keyword = false;
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}
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if (!in_keyword && is_char && !prev_is_char) {
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int to = j;
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while (to < line_length && !is_symbol(str[to])) {
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to++;
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}
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String word = str.substr(j, to - j);
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Color col;
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if (keywords.has(word)) {
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col = keywords[word];
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} else if (member_keywords.has(word)) {
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col = member_keywords[word];
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for (int k = j - 1; k >= 0; k--) {
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if (str[k] == '.') {
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col = Color(); //member indexing not allowed
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break;
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} else if (str[k] > 32) {
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break;
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}
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}
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}
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if (col != Color()) {
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in_keyword = true;
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keyword_color = col;
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}
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}
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if (!in_function_name && in_word && !in_keyword) {
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int k = j;
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while (k < line_length && !is_symbol(str[k]) && str[k] != '\t' && str[k] != ' ') {
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k++;
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}
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// Check for space between name and bracket.
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while (k < line_length && (str[k] == '\t' || str[k] == ' ')) {
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k++;
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}
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if (str[k] == '(') {
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in_function_name = true;
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}
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}
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if (!in_function_name && !in_member_variable && !in_keyword && !is_number && in_word) {
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int k = j;
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while (k > 0 && !is_symbol(str[k]) && str[k] != '\t' && str[k] != ' ') {
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k--;
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}
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if (str[k] == '.') {
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in_member_variable = true;
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}
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}
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if (is_a_symbol) {
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in_function_name = false;
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in_member_variable = false;
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}
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if (in_keyword) {
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color = keyword_color;
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} else if (in_member_variable) {
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color = member_color;
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} else if (in_function_name) {
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color = function_color;
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} else if (is_a_symbol) {
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color = symbol_color;
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} else if (is_number) {
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color = number_color;
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}
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prev_is_char = is_char;
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prev_is_number = is_number;
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if (color != prev_color) {
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prev_color = color;
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highlighter_info["color"] = color;
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color_map[j] = highlighter_info;
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}
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}
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return color_map;
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}
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void CodeHighlighter::_clear_highlighting_cache() {
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color_region_cache.clear();
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}
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void CodeHighlighter::_update_cache() {
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font_color = text_edit->get_theme_color(SNAME("font_color"));
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}
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void CodeHighlighter::add_keyword_color(const String &p_keyword, const Color &p_color) {
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keywords[p_keyword] = p_color;
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clear_highlighting_cache();
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}
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void CodeHighlighter::remove_keyword_color(const String &p_keyword) {
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keywords.erase(p_keyword);
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clear_highlighting_cache();
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}
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bool CodeHighlighter::has_keyword_color(const String &p_keyword) const {
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return keywords.has(p_keyword);
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}
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Color CodeHighlighter::get_keyword_color(const String &p_keyword) const {
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ERR_FAIL_COND_V(!keywords.has(p_keyword), Color());
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return keywords[p_keyword];
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}
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void CodeHighlighter::set_keyword_colors(const Dictionary p_keywords) {
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keywords.clear();
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keywords = p_keywords;
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clear_highlighting_cache();
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}
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void CodeHighlighter::clear_keyword_colors() {
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keywords.clear();
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clear_highlighting_cache();
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}
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Dictionary CodeHighlighter::get_keyword_colors() const {
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return keywords;
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}
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void CodeHighlighter::add_member_keyword_color(const String &p_member_keyword, const Color &p_color) {
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member_keywords[p_member_keyword] = p_color;
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clear_highlighting_cache();
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}
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void CodeHighlighter::remove_member_keyword_color(const String &p_member_keyword) {
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member_keywords.erase(p_member_keyword);
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clear_highlighting_cache();
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}
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bool CodeHighlighter::has_member_keyword_color(const String &p_member_keyword) const {
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return member_keywords.has(p_member_keyword);
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}
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Color CodeHighlighter::get_member_keyword_color(const String &p_member_keyword) const {
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ERR_FAIL_COND_V(!member_keywords.has(p_member_keyword), Color());
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return member_keywords[p_member_keyword];
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}
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void CodeHighlighter::set_member_keyword_colors(const Dictionary &p_member_keywords) {
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member_keywords.clear();
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member_keywords = p_member_keywords;
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clear_highlighting_cache();
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}
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void CodeHighlighter::clear_member_keyword_colors() {
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member_keywords.clear();
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clear_highlighting_cache();
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}
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Dictionary CodeHighlighter::get_member_keyword_colors() const {
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return member_keywords;
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}
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void CodeHighlighter::add_color_region(const String &p_start_key, const String &p_end_key, const Color &p_color, bool p_line_only) {
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for (int i = 0; i < p_start_key.length(); i++) {
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ERR_FAIL_COND_MSG(!is_symbol(p_start_key[i]), "color regions must start with a symbol");
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}
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if (p_end_key.length() > 0) {
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for (int i = 0; i < p_end_key.length(); i++) {
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ERR_FAIL_COND_MSG(!is_symbol(p_end_key[i]), "color regions must end with a symbol");
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}
|
|
}
|
|
|
|
int at = 0;
|
|
for (int i = 0; i < color_regions.size(); i++) {
|
|
ERR_FAIL_COND_MSG(color_regions[i].start_key == p_start_key, "color region with start key '" + p_start_key + "' already exists.");
|
|
if (p_start_key.length() < color_regions[i].start_key.length()) {
|
|
at++;
|
|
}
|
|
}
|
|
|
|
ColorRegion color_region;
|
|
color_region.color = p_color;
|
|
color_region.start_key = p_start_key;
|
|
color_region.end_key = p_end_key;
|
|
color_region.line_only = p_line_only || p_end_key.is_empty();
|
|
color_regions.insert(at, color_region);
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
void CodeHighlighter::remove_color_region(const String &p_start_key) {
|
|
for (int i = 0; i < color_regions.size(); i++) {
|
|
if (color_regions[i].start_key == p_start_key) {
|
|
color_regions.remove_at(i);
|
|
break;
|
|
}
|
|
}
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
bool CodeHighlighter::has_color_region(const String &p_start_key) const {
|
|
for (int i = 0; i < color_regions.size(); i++) {
|
|
if (color_regions[i].start_key == p_start_key) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void CodeHighlighter::set_color_regions(const Dictionary &p_color_regions) {
|
|
color_regions.clear();
|
|
|
|
List<Variant> keys;
|
|
p_color_regions.get_key_list(&keys);
|
|
|
|
for (const Variant &E : keys) {
|
|
String key = E;
|
|
|
|
String start_key = key.get_slice(" ", 0);
|
|
String end_key = key.get_slice_count(" ") > 1 ? key.get_slice(" ", 1) : String();
|
|
|
|
add_color_region(start_key, end_key, p_color_regions[key], end_key.is_empty());
|
|
}
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
void CodeHighlighter::clear_color_regions() {
|
|
color_regions.clear();
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
Dictionary CodeHighlighter::get_color_regions() const {
|
|
Dictionary r_color_regions;
|
|
for (int i = 0; i < color_regions.size(); i++) {
|
|
ColorRegion region = color_regions[i];
|
|
r_color_regions[region.start_key + (region.end_key.is_empty() ? "" : " " + region.end_key)] = region.color;
|
|
}
|
|
return r_color_regions;
|
|
}
|
|
|
|
void CodeHighlighter::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("add_keyword_color", "keyword", "color"), &CodeHighlighter::add_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("remove_keyword_color", "keyword"), &CodeHighlighter::remove_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("has_keyword_color", "keyword"), &CodeHighlighter::has_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("get_keyword_color", "keyword"), &CodeHighlighter::get_keyword_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_keyword_colors", "keywords"), &CodeHighlighter::set_keyword_colors);
|
|
ClassDB::bind_method(D_METHOD("clear_keyword_colors"), &CodeHighlighter::clear_keyword_colors);
|
|
ClassDB::bind_method(D_METHOD("get_keyword_colors"), &CodeHighlighter::get_keyword_colors);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_member_keyword_color", "member_keyword", "color"), &CodeHighlighter::add_member_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("remove_member_keyword_color", "member_keyword"), &CodeHighlighter::remove_member_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("has_member_keyword_color", "member_keyword"), &CodeHighlighter::has_member_keyword_color);
|
|
ClassDB::bind_method(D_METHOD("get_member_keyword_color", "member_keyword"), &CodeHighlighter::get_member_keyword_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_member_keyword_colors", "member_keyword"), &CodeHighlighter::set_member_keyword_colors);
|
|
ClassDB::bind_method(D_METHOD("clear_member_keyword_colors"), &CodeHighlighter::clear_member_keyword_colors);
|
|
ClassDB::bind_method(D_METHOD("get_member_keyword_colors"), &CodeHighlighter::get_member_keyword_colors);
|
|
|
|
ClassDB::bind_method(D_METHOD("add_color_region", "start_key", "end_key", "color", "line_only"), &CodeHighlighter::add_color_region, DEFVAL(false));
|
|
ClassDB::bind_method(D_METHOD("remove_color_region", "start_key"), &CodeHighlighter::remove_color_region);
|
|
ClassDB::bind_method(D_METHOD("has_color_region", "start_key"), &CodeHighlighter::has_color_region);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_color_regions", "color_regions"), &CodeHighlighter::set_color_regions);
|
|
ClassDB::bind_method(D_METHOD("clear_color_regions"), &CodeHighlighter::clear_color_regions);
|
|
ClassDB::bind_method(D_METHOD("get_color_regions"), &CodeHighlighter::get_color_regions);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_function_color", "color"), &CodeHighlighter::set_function_color);
|
|
ClassDB::bind_method(D_METHOD("get_function_color"), &CodeHighlighter::get_function_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_number_color", "color"), &CodeHighlighter::set_number_color);
|
|
ClassDB::bind_method(D_METHOD("get_number_color"), &CodeHighlighter::get_number_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_symbol_color", "color"), &CodeHighlighter::set_symbol_color);
|
|
ClassDB::bind_method(D_METHOD("get_symbol_color"), &CodeHighlighter::get_symbol_color);
|
|
|
|
ClassDB::bind_method(D_METHOD("set_member_variable_color", "color"), &CodeHighlighter::set_member_variable_color);
|
|
ClassDB::bind_method(D_METHOD("get_member_variable_color"), &CodeHighlighter::get_member_variable_color);
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "number_color"), "set_number_color", "get_number_color");
|
|
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "symbol_color"), "set_symbol_color", "get_symbol_color");
|
|
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "function_color"), "set_function_color", "get_function_color");
|
|
ADD_PROPERTY(PropertyInfo(Variant::COLOR, "member_variable_color"), "set_member_variable_color", "get_member_variable_color");
|
|
|
|
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "keyword_colors"), "set_keyword_colors", "get_keyword_colors");
|
|
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "member_keyword_colors"), "set_member_keyword_colors", "get_member_keyword_colors");
|
|
ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "color_regions"), "set_color_regions", "get_color_regions");
|
|
}
|
|
|
|
void CodeHighlighter::set_number_color(Color p_color) {
|
|
number_color = p_color;
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
Color CodeHighlighter::get_number_color() const {
|
|
return number_color;
|
|
}
|
|
|
|
void CodeHighlighter::set_symbol_color(Color p_color) {
|
|
symbol_color = p_color;
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
Color CodeHighlighter::get_symbol_color() const {
|
|
return symbol_color;
|
|
}
|
|
|
|
void CodeHighlighter::set_function_color(Color p_color) {
|
|
function_color = p_color;
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
Color CodeHighlighter::get_function_color() const {
|
|
return function_color;
|
|
}
|
|
|
|
void CodeHighlighter::set_member_variable_color(Color p_color) {
|
|
member_color = p_color;
|
|
clear_highlighting_cache();
|
|
}
|
|
|
|
Color CodeHighlighter::get_member_variable_color() const {
|
|
return member_color;
|
|
}
|