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feat: add syntax highlighting to edit command

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This commit is contained in:
Daniel Hammer
2026-04-05 22:09:39 +02:00
parent 6f0707bc80
commit 958bca6e01
3 changed files with 605 additions and 2 deletions
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programs/include/gui/terminal.hpp
+45
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@@ -69,6 +69,23 @@ static inline Color term_ansi_color(int idx) {
}
}
// ANSI 256-color palette (0-15 = standard, 16-231 = RGB cube, 232-255 = grayscale)
static inline Color term_ansi_256_color(int idx) {
if (idx < 0) return colors::TERM_FG;
if (idx <= 15) return term_ansi_color(idx);
if (idx <= 231) {
// 6x6x6 RGB cube: idx 16 = (0,0,0), idx 231 = (5,5,5)
int r = ((idx - 16) / 36) * 51;
int g = (((idx - 16) % 36) / 6) * 51;
int b = ((idx - 16) % 6) * 51;
return Color::from_rgb(r, g, b);
}
// Grayscale: idx 232 = #080808, idx 255 = #eeeeee
int gray = 8 + (idx - 232) * 10;
if (gray > 238) gray = 238;
return Color::from_rgb(gray, gray, gray);
}
// Helper: pointer to start of screen-relative row r in the cells buffer
static inline TermCell* term_screen_row(TerminalState* t, int r) {
return &t->cells[(t->scrollback_lines + r) * t->cols];
@@ -330,6 +347,34 @@ static inline void terminal_process_csi(TerminalState* t, char cmd) {
// SGR - Set Graphics Rendition
for (int i = 0; i < t->csi_param_count; i++) {
int code = t->csi_params[i];
// Handle extended color sequences: 38;5;N or 48;5;N or 38;2;R;G;B or 48;2;R;G;B
if ((code == 38 || code == 48) && i + 2 < t->csi_param_count) {
if (t->csi_params[i + 1] == 5) {
// 256-color: 38;5;N or 48;5;N
int color_idx = t->csi_params[i + 2];
if (code == 38) {
t->current_fg = term_ansi_256_color(color_idx);
} else {
t->current_bg = term_ansi_256_color(color_idx);
}
i += 2;
continue;
} else if (t->csi_params[i + 1] == 2 && i + 4 < t->csi_param_count) {
// Truecolor: 38;2;R;G;B or 48;2;R;G;B
int r = t->csi_params[i + 2];
int g = t->csi_params[i + 3];
int b = t->csi_params[i + 4];
if (code == 38) {
t->current_fg = Color::from_rgb(r, g, b);
} else {
t->current_bg = Color::from_rgb(r, g, b);
}
i += 4;
continue;
}
}
if (code == 0) {
t->current_fg = colors::TERM_FG;
t->current_bg = colors::TERM_BG;