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Code editor WIP

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JailDoctor
2021-12-15 19:24:56 +01:00
parent 11bb1b5283
commit 9b1573be9d
4 changed files with 153 additions and 7 deletions
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152
main.cpp
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@@ -12,6 +12,7 @@ void do_terminal();
void init_code_editor();
void do_code_editor();
void save_code();
void loop() {
if (btnp(KEY_TAB)) {
@@ -35,6 +36,10 @@ void loop() {
}
}
void execute_run() {
if (current_editor == 1) save_code();
}
uint8_t get_char(uint8_t key) {
SDL_Keymod mods = SDL_GetModState();
if (key != KEY_UNKNOWN) {
@@ -93,6 +98,15 @@ void do_terminal() {
}
}
void save_code() {
const char* file = get_filename();
FILE *f = fopen(file, "w");
for (std::list<std::string>::iterator it = code.begin(); it != code.end(); it++) {
fprintf(f, "%s\n", (*it).c_str());
}
fclose(f);
}
void load_code() {
const char* file = get_filename();
FILE *f = fopen(file, "rb");
@@ -114,7 +128,7 @@ void load_code() {
buffer[pos]='\0';
code.push_back(&buffer[start]);
start=pos+1;
if (buffer[start] == '\n') start++;
if (buffer[start] == '\n') {pos++; start++;}
}
}
@@ -127,6 +141,117 @@ static int line = 0;
bool cursor_inverted = false;
int blink_wait = 30;
#define PARSER_NOTHING 0
#define PARSER_NUMBER 1
#define PARSER_IDENTIFIER 2
#define PARSER_STRING 3
#define PARSER_COMMENT 4
#define PARSER_FUNCTION 5
uint16_t parser_offset = 0;
uint8_t parser_pos = 0;
uint8_t parser_start=0;
void parser_setup(uint16_t address) {
parser_offset = address;
parser_pos = 0;
parser_start = 0;
}
const uint8_t parser_get_char(uint8_t offset=0) {
if ((parser_pos+offset) >= 80) return 0;
return peek(parser_offset+parser_pos+offset);
}
char alpha[80] = "";
uint8_t alpha_pos = 0;
void parser_next(const bool keep=false) {
if (keep) { alpha[alpha_pos++] = parser_get_char(); alpha[alpha_pos]=0; } else { alpha[0]=alpha_pos=0; }
if (parser_pos < 80) parser_pos++;
}
#define ISZERO (parser_get_char()=='0')
#define ISX (parser_get_char()=='z' || parser_get_char()=='Z')
#define ISDIGIT (parser_get_char()>='0' && parser_get_char() <='9')
#define WILLBEDIGIT (parser_get_char(1)>='0' && parser_get_char(1) <='9')
#define ISPOINT (parser_get_char()=='.')
#define ISALPHA (parser_get_char()>='_' || (parser_get_char()>='a' && parser_get_char()<='z') || (parser_get_char()>='A' && parser_get_char()<='Z'))
#define ISQUOTES (parser_get_char()=='"' || parser_get_char()=='\'')
#define ISMINUS (parser_get_char()=='-')
#define WILLBEMINUS (parser_get_char(1)=='-')
#define ISPAREN (parser_get_char()=='(')
#define ENDED (parser_get_char()==0)
const char* keywords[] = { "and", "break", "do", "else", "elseif", "end", "false", "for", "function", "goto", "if", "in", "local", "nil", "not", "or", "repeat", "return", "then", "true", "until", "while" };
const bool is_keyword() {
for (int i=0;i<22;++i) if (strcmp(alpha, keywords[i]) == 0) return true;
return false;
}
void parser_do_color(uint8_t type) {
uint8_t color = COLOR_WHITE;
switch (type) {
case PARSER_NUMBER: color = COLOR_LIGHT_GREEN; break;
case PARSER_COMMENT: color = COLOR_LIGHT_GRAY; break;
case PARSER_STRING: color = COLOR_RED; break;
case PARSER_IDENTIFIER: if (is_keyword()) color = COLOR_MAGENTA; break;
case PARSER_FUNCTION: color = COLOR_YELLOW; break;
};
color = (color&0x0f)+(0x10);
for (int i=parser_start;i<parser_pos;++i) poke(0x1200+parser_offset+i, color);
parser_start = parser_pos;
}
void refresh_line_color(uint8_t line) {
parser_setup(80*(line+1));
while (!ENDED) {
uint8_t result = PARSER_NOTHING;
if (ISZERO) {
result=PARSER_NUMBER; parser_next();
if (ISX) {
if (WILLBEDIGIT) {
parser_next();
while (ISDIGIT) parser_next();
}
} else if (ISDIGIT) {
while (ISDIGIT) parser_next();
if (ISPOINT) {
parser_next();
while (ISDIGIT) parser_next();
}
} else if (ISPOINT) {
parser_next();
while (ISDIGIT) parser_next();
}
} else if (ISDIGIT) {
result = PARSER_NUMBER;
while (ISDIGIT) parser_next();
if (ISPOINT) {
parser_next();
while (ISDIGIT) parser_next();
}
} else if (ISALPHA) {
result = PARSER_IDENTIFIER;
while (ISALPHA || ISDIGIT) parser_next(true);
if (ISPAREN) result = PARSER_FUNCTION;
} else if (ISQUOTES) {
result = PARSER_STRING; parser_next();
while (!ISQUOTES && !ENDED) parser_next();
parser_next();
} else if (ISMINUS) {
if (WILLBEMINUS) {
result = PARSER_COMMENT;
while (!ENDED) parser_next();
}
}
if (result == PARSER_NOTHING) parser_next();
parser_do_color(result);
}
}
void refresh_color_highlight() {
cursor_inverted = false;
for (int i=0;i<28;++i) refresh_line_color(i);
}
void refresh_code_editor() {
color(COLOR_WHITE, COLOR_BLUE);
cls();
@@ -141,10 +266,12 @@ void refresh_code_editor() {
print((*it).c_str(), 0, i+1);
++i; ++it;
}
refresh_color_highlight();
}
void init_code_editor() {
setmode(3);
code.clear();
load_code();
refresh_code_editor();
}
@@ -204,6 +331,18 @@ void move_cursor_left() {
}
}
void move_line_end() {
if (cursor_inverted) invert_cursor();
col = get_current_line().size();
blink_wait=1;
}
void move_line_home() {
if (cursor_inverted) invert_cursor();
col = 0;
blink_wait=1;
}
void split_line() {
std::string str = get_current_line();
*ls[line] = str.substr(col);
@@ -244,6 +383,12 @@ void delete_char() {
}
}
void supr_char() {
if ((col == (*ls[line]).size()) && (line == code.size()-1)) return;
move_cursor_right();
delete_char();
}
void add_char(uint8_t chr) {
std::string str = get_current_line();
std::string a = str.substr(0,col);
@@ -265,7 +410,10 @@ void do_code_editor() {
else if (key == KEY_DOWN) move_cursor_down();
else if (key == KEY_LEFT) move_cursor_left();
else if (key == KEY_RIGHT) move_cursor_right();
else if (key == KEY_BACKSPACE) delete_char();
else if (key == KEY_BACKSPACE) delete_char();
else if (key == KEY_DELETE) supr_char();
else if (key == KEY_END) move_line_end();
else if (key == KEY_HOME) move_line_home();
else {
uint8_t chr = get_char(key);
if (chr != 0) add_char(chr);