diff options
| -rw-r--r-- | sdn.cpp | 137 |
1 files changed, 127 insertions, 10 deletions
@@ -26,6 +26,7 @@ #include <cwchar> #include <climits> #include <cstdlib> +#include <cstring> #include <fstream> #include <map> @@ -293,6 +294,10 @@ struct entry { enum action { ACTIONS(XX) ACTION_COUNT }; #undef XX +#define XX(name) #name, +static const char *g_action_names[] = {ACTIONS(XX)}; +#undef XX + static map<wint_t, action> g_normal_actions = { {ALT | '\r', ACTION_CHOOSE_FULL}, {ALT | KEY (ENTER), ACTION_CHOOSE_FULL}, {'\r', ACTION_CHOOSE}, {KEY (ENTER), ACTION_CHOOSE}, @@ -315,6 +320,9 @@ static map<wint_t, action> g_input_actions = { {L'\r', ACTION_INPUT_CONFIRM}, {KEY (ENTER), ACTION_INPUT_CONFIRM}, {KEY (BACKSPACE), ACTION_INPUT_B_DELETE}, }; +static const map<string, map<wint_t, action>*> g_binding_contexts = { + {"normal", &g_normal_actions}, {"input", &g_input_actions}, +}; #define LS(XX) XX(NORMAL, "no") XX(FILE, "fi") XX(RESET, "rs") \ XX(DIRECTORY, "di") XX(SYMLINK, "ln") XX(MULTIHARDLINK, "mh") \ @@ -331,6 +339,14 @@ enum { LS(XX) LS_COUNT }; static const char *g_ls_colors[] = {LS(XX)}; #undef XX +struct stringcaseless { + bool operator () (const string &a, const string &b) const { + const auto &c = locale::classic(); + return lexicographical_compare (begin (a), end (a), begin (b), end (b), + [&](char m, char n) { return tolower (m, c) < tolower (n, c); }); + } +}; + static struct { string cwd; ///< Current working directory string start_dir; ///< Starting directory @@ -356,6 +372,8 @@ static struct { map<string, chtype> ls_exts; ///< LS_COLORS file extensions bool ls_symlink_as_target; ///< ln=target in dircolors + map<string, wint_t, stringcaseless> key_names; + // Refreshed by reload(): map<uid_t, string> unames; ///< User names by UID @@ -834,14 +852,16 @@ fun load_ls_colors (vector<string> colors) { } } -fun load_configuration () { - auto config = xdg_config_find ("/" PROJECT_NAME "/look"); - if (!config) - return; - +fun load_colors () { // Bail out on dumb terminals, there's not much one can do about them if (!has_colors () || start_color () == ERR || use_default_colors () == ERR) return; + if (const char *colors = getenv ("LS_COLORS")) + load_ls_colors (split (colors, ":")); + + auto config = xdg_config_find ("/" PROJECT_NAME "/look"); + if (!config) + return; string line; while (getline (*config, line)) { @@ -853,9 +873,6 @@ fun load_configuration () { if (name == g.attr_names[i]) g.attrs[i] = decode_attrs (tokens); } - - if (const char *colors = getenv ("LS_COLORS")) - load_ls_colors (split (colors, ":")); } fun read_key (wint_t &c) -> bool { @@ -871,6 +888,104 @@ fun read_key (wint_t &c) -> bool { return true; } +fun parse_key (const string &key_name) -> wint_t { + wint_t c{}; + auto p = key_name.c_str (); + if (!strncmp (p, "M-", 2)) { + c |= ALT; + p += 2; + } + + if (!strncmp (p, "C-", 2)) { + p += 2; + if (*p < 32) { + cerr << "bindings: invalid combination: " << key_name << endl; + return WEOF; + } + c |= CTRL *p; + p += 1; + } else if (g.key_names.count (p)) { + c |= g.key_names.at (p); + p += strlen (p); + } else { + wchar_t w; mbstate_t mb {}; + auto len = strlen (p) + 1, res = mbrtowc (&w, p, len, &mb); + if (res == 0) { + cerr << "bindings: missing key name: " << key_name << endl; + return WEOF; + } + if (res == size_t (-1) || res == size_t (-2)) { + cerr << "bindings: invalid encoding: " << key_name << endl; + return WEOF; + } + c |= w; + p += res; + } + if (*p) { + cerr << "key name has unparsable trailing part: " << key_name << endl; + return WEOF; + } + return c; +} + +fun load_bindings () { + g.key_names["space"] = ' '; + for (int kc = KEY_MIN; kc < KEY_MAX; kc++) { + const char *name = keyname (kc); + if (!name) + continue; + if (!strncmp (name, "KEY_", 4)) + name += 4; + string filtered; + for (; *name; name++) { + if (*name != '(' && *name != ')') + filtered += *name; + } + g.key_names[filtered] = kc; + } + + auto config = xdg_config_find ("/" PROJECT_NAME "/bindings"); + if (!config) + return; + + // Stringization in the preprocessor is a bit limited, we want lisp-case + map<string, action> actions; + int a; + for (auto p : g_action_names) { + string name; + for (; *p; p++) + name += *p == '_' ? '-' : *p + 'a' - 'A'; + actions[name] = action (a++); + } + + string line; + while (getline (*config, line)) { + auto tokens = split (line, " "); + if (tokens.empty () || line.front () == '#') + continue; + if (tokens.size () < 3) { + cerr << "bindings: expected: context binding action"; + continue; + } + + auto context = tokens[0], key_name = tokens[1], action = tokens[2]; + auto m = g_binding_contexts.find (context); + if (m == g_binding_contexts.end ()) { + cerr << "bindings: invalid context: " << context << endl; + continue; + } + wint_t c = parse_key (key_name); + if (c == WEOF) + continue; + auto i = actions.find (action); + if (i == actions.end ()) { + cerr << "bindings: invalid action: " << action << endl; + continue; + } + (*m->second)[c] = i->second; + } +} + int main (int argc, char *argv[]) { (void) argc; (void) argv; @@ -892,12 +1007,14 @@ int main (int argc, char *argv[]) { } locale::global (locale ("")); + load_bindings (); + if (!initscr () || cbreak () == ERR || noecho () == ERR || nonl () == ERR) { cerr << "cannot initialize screen" << endl; return 1; } - load_configuration (); + load_colors (); reload (); g.start_dir = g.cwd; update (); @@ -906,7 +1023,7 @@ int main (int argc, char *argv[]) { // which would worsen start-up flickering if (halfdelay (1) == ERR || keypad (stdscr, TRUE) == ERR) { endwin (); - cerr << "cannot initialize screen" << endl; + cerr << "cannot configure input" << endl; return 1; } |