393 lines
11 KiB
C++
393 lines
11 KiB
C++
/*************************************************************************/
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/* gdscript_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) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 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 "gdscript_highlighter.h"
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#include "../gdscript_tokenizer.h"
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#include "editor/editor_settings.h"
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inline bool _is_symbol(CharType c) {
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return is_symbol(c);
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}
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static bool _is_text_char(CharType c) {
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return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_';
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}
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static bool _is_char(CharType 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_number(CharType c) {
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return (c >= '0' && c <= '9');
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}
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static bool _is_hex_symbol(CharType c) {
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return ((c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'));
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}
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static bool _is_bin_symbol(CharType c) {
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return (c == '0' || c == '1');
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}
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Dictionary GDScriptSyntaxHighlighter::_get_line_syntax_highlighting(int p_line) {
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Dictionary color_map;
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Type next_type = NONE;
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Type current_type = NONE;
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Type previous_type = NONE;
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String previous_text = "";
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int previous_column = 0;
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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_variable_declaration = false;
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bool in_function_args = false;
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bool in_member_variable = false;
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bool in_node_path = false;
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bool is_hex_notation = false;
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bool is_bin_notation = false;
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bool expect_type = false;
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Color keyword_color;
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Color color;
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int in_region = text_edit->_is_line_in_region(p_line);
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int deregion = 0;
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const Map<int, TextEdit::Text::ColorRegionInfo> cri_map = text_edit->_get_line_color_region_info(p_line);
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const String &str = text_edit->get_line(p_line);
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Color prev_color;
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for (int j = 0; j < str.length(); j++) {
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Dictionary highlighter_info;
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if (deregion > 0) {
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deregion--;
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if (deregion == 0) {
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in_region = -1;
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}
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}
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if (deregion != 0) {
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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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continue;
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}
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color = font_color;
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bool is_char = _is_text_char(str[j]);
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bool is_symbol = _is_symbol(str[j]);
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bool is_number = _is_number(str[j]);
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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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// disallow anything not a 0 or 1
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if (is_bin_notation && (_is_bin_symbol(str[j]))) {
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is_number = true;
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} else if (is_bin_notation) {
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is_bin_notation = false;
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is_number = false;
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} else {
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is_bin_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] == 'b' || str[j] == '_' || str[j] == 'e') && !in_word && prev_is_number && !is_number) {
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is_number = true;
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is_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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} else if (str[j] == 'b' && str[j - 1] == '0') {
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is_bin_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_symbol && str[j] != '.' && in_word) {
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in_word = false;
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}
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if (is_symbol && cri_map.has(j)) {
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const TextEdit::Text::ColorRegionInfo &cri = cri_map[j];
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if (in_region == -1) {
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if (!cri.end) {
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in_region = cri.region;
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}
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} else {
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TextEdit::ColorRegion cr = text_edit->_get_color_region(cri.region);
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if (in_region == cri.region && !cr.line_only) { //ignore otherwise
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if (cri.end || cr.eq) {
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deregion = cr.eq ? cr.begin_key.length() : cr.end_key.length();
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}
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}
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}
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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_region == -1 && !in_keyword && is_char && !prev_is_char) {
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int to = j;
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while (to < str.length() && _is_text_char(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 (text_edit->has_keyword_color(word)) {
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col = text_edit->get_keyword_color(word);
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} else if (text_edit->has_member_color(word)) {
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col = text_edit->get_member_color(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 < str.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 < str.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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} else if (previous_text == GDScriptTokenizer::get_token_name(GDScriptTokenizer::TK_PR_VAR)) {
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in_variable_declaration = 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_symbol) {
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if (in_function_name) {
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in_function_args = true;
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}
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if (in_function_args && str[j] == ')') {
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in_function_args = false;
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}
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if (expect_type && (prev_is_char || str[j] == '=')) {
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expect_type = false;
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}
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if (j > 0 && str[j] == '>' && str[j - 1] == '-') {
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expect_type = true;
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}
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if (in_variable_declaration || in_function_args) {
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int k = j;
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// Skip space
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while (k < str.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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// has type hint
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expect_type = true;
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}
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}
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in_variable_declaration = false;
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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_node_path && in_region == -1 && str[j] == '$') {
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in_node_path = true;
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} else if (in_region != -1 || (is_symbol && str[j] != '/')) {
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in_node_path = false;
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}
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if (in_region >= 0) {
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next_type = REGION;
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color = text_edit->_get_color_region(in_region).color;
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} else if (in_node_path) {
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next_type = NODE_PATH;
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color = node_path_color;
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} else if (in_keyword) {
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next_type = KEYWORD;
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color = keyword_color;
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} else if (in_member_variable) {
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next_type = MEMBER;
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color = member_color;
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} else if (in_function_name) {
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next_type = FUNCTION;
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if (previous_text == GDScriptTokenizer::get_token_name(GDScriptTokenizer::TK_PR_FUNCTION)) {
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color = function_definition_color;
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} else {
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color = function_color;
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}
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} else if (is_symbol) {
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next_type = SYMBOL;
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color = symbol_color;
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} else if (is_number) {
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next_type = NUMBER;
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color = number_color;
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} else if (expect_type) {
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next_type = TYPE;
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color = type_color;
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} else {
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next_type = IDENTIFIER;
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}
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if (next_type != current_type) {
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if (current_type == NONE) {
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current_type = next_type;
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} else {
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previous_type = current_type;
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current_type = next_type;
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// no need to store regions...
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if (previous_type == REGION) {
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previous_text = "";
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previous_column = j;
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} else {
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String text = str.substr(previous_column, j - previous_column).strip_edges();
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previous_column = j;
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// ignore if just whitespace
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if (text != "") {
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previous_text = text;
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}
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}
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}
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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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String GDScriptSyntaxHighlighter::_get_name() const {
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return "GDScript";
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}
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Array GDScriptSyntaxHighlighter::_get_supported_languages() const {
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Array languages;
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languages.push_back("GDScript");
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return languages;
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}
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void GDScriptSyntaxHighlighter::_update_cache() {
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font_color = text_edit->get_theme_color("font_color");
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symbol_color = text_edit->get_theme_color("symbol_color");
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function_color = text_edit->get_theme_color("function_color");
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number_color = text_edit->get_theme_color("number_color");
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member_color = text_edit->get_theme_color("member_variable_color");
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const String text_edit_color_theme = EditorSettings::get_singleton()->get("text_edit/theme/color_theme");
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const bool default_theme = text_edit_color_theme == "Default";
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if (default_theme || EditorSettings::get_singleton()->is_dark_theme()) {
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function_definition_color = Color(0.4, 0.9, 1.0);
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node_path_color = Color(0.39, 0.76, 0.35);
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} else {
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function_definition_color = Color(0.0, 0.65, 0.73);
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node_path_color = Color(0.32, 0.55, 0.29);
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}
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EDITOR_DEF("text_edit/highlighting/gdscript/function_definition_color", function_definition_color);
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EDITOR_DEF("text_edit/highlighting/gdscript/node_path_color", node_path_color);
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if (text_edit_color_theme == "Adaptive" || default_theme) {
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EditorSettings::get_singleton()->set_initial_value(
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"text_edit/highlighting/gdscript/function_definition_color",
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function_definition_color,
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true);
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EditorSettings::get_singleton()->set_initial_value(
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"text_edit/highlighting/gdscript/node_path_color",
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node_path_color,
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true);
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}
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function_definition_color = EDITOR_GET("text_edit/highlighting/gdscript/function_definition_color");
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node_path_color = EDITOR_GET("text_edit/highlighting/gdscript/node_path_color");
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type_color = EDITOR_GET("text_edit/highlighting/base_type_color");
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}
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SyntaxHighlighter *GDScriptSyntaxHighlighter::create() {
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return memnew(GDScriptSyntaxHighlighter);
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}
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