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640 lines
20 KiB
C++
640 lines
20 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) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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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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ScriptInstance *si = get_script_instance();
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if (si && si->has_method("_get_line_syntax_highlighting")) {
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color_map = si->call("_get_line_syntax_highlighting", p_line);
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} else {
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color_map = _get_line_syntax_highlighting(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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ScriptInstance *si = get_script_instance();
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if (si && si->has_method("_clear_highlighting_cache")) {
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si->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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ScriptInstance *si = get_script_instance();
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if (si && si->has_method("_update_cache")) {
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si->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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BIND_VMETHOD(MethodInfo(Variant::DICTIONARY, "_get_line_syntax_highlighting", PropertyInfo(Variant::INT, "line")));
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BIND_VMETHOD(MethodInfo("_clear_highlighting_cache"));
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BIND_VMETHOD(MethodInfo("_update_cache"));
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}
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////////////////////////////////////////////////////////////////////////////////
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static bool _is_char(char32_t c) {
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
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}
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static bool _is_hex_symbol(char32_t c) {
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return ((c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'));
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}
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Dictionary CodeHighlighter::_get_line_syntax_highlighting(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 = (str[j] >= '0' && str[j] <= '9');
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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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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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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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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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/* 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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break;
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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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from++;
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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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prev_color = color_regions[in_region].color;
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highlighter_info["color"] = color_regions[in_region].color;
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color_map[j] = highlighter_info;
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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_symbol(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_char(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 = Color();
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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("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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}
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}
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int at = 0;
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for (int i = 0; i < color_regions.size(); i++) {
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ERR_FAIL_COND_MSG(color_regions[i].start_key == p_start_key, "color region with start key '" + p_start_key + "' already exists.");
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if (p_start_key.length() < color_regions[i].start_key.length()) {
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at++;
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}
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}
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ColorRegion color_region;
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color_region.color = p_color;
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color_region.start_key = p_start_key;
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color_region.end_key = p_end_key;
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color_region.line_only = p_line_only || p_end_key == "";
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color_regions.insert(at, color_region);
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clear_highlighting_cache();
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}
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void CodeHighlighter::remove_color_region(const String &p_start_key) {
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for (int i = 0; i < color_regions.size(); i++) {
|
|
if (color_regions[i].start_key == p_start_key) {
|
|
color_regions.remove(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 (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
|
|
String key = E->get();
|
|
|
|
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 == "");
|
|
}
|
|
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;
|
|
}
|