diff options
Diffstat (limited to 'src/parse.c')
| -rw-r--r-- | src/parse.c | 308 |
1 files changed, 254 insertions, 54 deletions
diff --git a/src/parse.c b/src/parse.c index 79f4aba..e2b4c4d 100644 --- a/src/parse.c +++ b/src/parse.c @@ -22,8 +22,6 @@ find_or_init_default_mode(struct parser *parser) } default_mode = malloc(sizeof(struct mode)); - default_mode->line = -1; - default_mode->cursor = -1; default_mode->name = copy_string("default"); table_init(&default_mode->hotkey_map, 131, @@ -74,13 +72,63 @@ keycode_from_hex(char *hex) return result; } -internal char * -parse_command(struct parser *parser) +internal void +parse_command(struct parser *parser, struct hotkey *hotkey) { struct token command = parser_previous(parser); char *result = copy_string_count(command.text, command.length); - printf("\tcmd: '%s'\n", result); - return result; + debug("\tcmd: '%s'\n", result); + buf_push(hotkey->command, result); +} + +internal void +parse_process_command_list(struct parser *parser, struct hotkey *hotkey) +{ + if (parser_match(parser, Token_String)) { + struct token name_token = parser_previous(parser); + char *name = copy_string_count(name_token.text, name_token.length); + for (char *s = name; *s; ++s) *s = tolower(*s); + buf_push(hotkey->process_name, name); + if (parser_match(parser, Token_Command)) { + parse_command(parser, hotkey); + parse_process_command_list(parser, hotkey); + } else if (parser_match(parser, Token_Unbound)) { + buf_push(hotkey->command, NULL); + parse_process_command_list(parser, hotkey); + } else { + parser_report_error(parser, parser_peek(parser), "expected '~' or ':' followed by command\n"); + } + } else if (parser_match(parser, Token_Wildcard)) { + if (parser_match(parser, Token_Command)) { + struct token command = parser_previous(parser); + char *result = copy_string_count(command.text, command.length); + debug("\tcmd: '%s'\n", result); + hotkey->wildcard_command = result; + parse_process_command_list(parser, hotkey); + } else if (parser_match(parser, Token_Unbound)) { + hotkey->wildcard_command = NULL; + parse_process_command_list(parser, hotkey); + } else { + parser_report_error(parser, parser_peek(parser), "expected '~' or ':' followed by command\n"); + } + } else if (parser_match(parser, Token_EndList)) { + if (!buf_len(hotkey->process_name)) { + parser_report_error(parser, parser_previous(parser), "list must contain at least one value\n"); + } + } else { + parser_report_error(parser, parser_peek(parser), "expected process command mapping or ']'\n"); + } +} + +internal void +parse_activate(struct parser *parser, struct hotkey *hotkey) +{ + parse_command(parser, hotkey); + hotkey->flags |= Hotkey_Flag_Activate; + + if (!table_find(parser->mode_map, hotkey->command[0])) { + parser_report_error(parser, parser_previous(parser), "undeclared identifier\n"); + } } internal uint32_t @@ -90,7 +138,7 @@ parse_key_hex(struct parser *parser) char *hex = copy_string_count(key.text, key.length); uint32_t keycode = keycode_from_hex(hex); free(hex); - printf("\tkey: '%.*s' (0x%02x)\n", key.length, key.text, keycode); + debug("\tkey: '%.*s' (0x%02x)\n", key.length, key.text, keycode); return keycode; } @@ -100,7 +148,7 @@ parse_key(struct parser *parser) uint32_t keycode; struct token key = parser_previous(parser); keycode = keycode_from_char(*key.text); - printf("\tkey: '%c' (0x%02x)\n", *key.text, keycode); + debug("\tkey: '%c' (0x%02x)\n", *key.text, keycode); return keycode; } @@ -146,7 +194,7 @@ parse_key_literal(struct parser *parser, struct hotkey *hotkey) if (token_equals(key, literal_keycode_str[i])) { handle_implicit_literal_flags(hotkey, i); hotkey->key = literal_keycode_value[i]; - printf("\tkey: '%.*s' (0x%02x)\n", key.length, key.text, hotkey->key); + debug("\tkey: '%.*s' (0x%02x)\n", key.length, key.text, hotkey->key); break; } } @@ -158,7 +206,7 @@ internal enum hotkey_flag modifier_flags_value[] = Hotkey_Flag_Shift, Hotkey_Flag_LShift, Hotkey_Flag_RShift, Hotkey_Flag_Cmd, Hotkey_Flag_LCmd, Hotkey_Flag_RCmd, Hotkey_Flag_Control, Hotkey_Flag_LControl, Hotkey_Flag_RControl, - Hotkey_Flag_Fn, Hotkey_Flag_Hyper, + Hotkey_Flag_Fn, Hotkey_Flag_Hyper, Hotkey_Flag_Meh, }; internal uint32_t @@ -170,7 +218,7 @@ parse_modifier(struct parser *parser) for (int i = 0; i < array_count(modifier_flags_str); ++i) { if (token_equals(modifier, modifier_flags_str[i])) { flags |= modifier_flags_value[i]; - printf("\tmod: '%s'\n", modifier_flags_str[i]); + debug("\tmod: '%s'\n", modifier_flags_str[i]); break; } } @@ -179,7 +227,7 @@ parse_modifier(struct parser *parser) if (parser_match(parser, Token_Modifier)) { flags |= parse_modifier(parser); } else { - parser_report_error(parser, Error_Unexpected_Token, "expected modifier"); + parser_report_error(parser, parser_peek(parser), "expected modifier\n"); } } @@ -198,18 +246,18 @@ parse_mode(struct parser *parser, struct hotkey *hotkey) if (!mode && token_equals(identifier, "default")) { mode = find_or_init_default_mode(parser); } else if (!mode) { - parser_report_error(parser, Error_Undeclared_Ident, "undeclared identifier"); + parser_report_error(parser, identifier, "undeclared identifier\n"); return; } buf_push(hotkey->mode_list, mode); - printf("\tmode: '%s'\n", mode->name); + debug("\tmode: '%s'\n", mode->name); if (parser_match(parser, Token_Comma)) { if (parser_match(parser, Token_Identifier)) { parse_mode(parser, hotkey); } else { - parser_report_error(parser, Error_Unexpected_Token, "expected identifier"); + parser_report_error(parser, parser_peek(parser), "expected identifier\n"); } } } @@ -221,7 +269,7 @@ parse_hotkey(struct parser *parser) memset(hotkey, 0, sizeof(struct hotkey)); bool found_modifier; - printf("hotkey :: #%d {\n", parser->current_token.line); + debug("hotkey :: #%d {\n", parser->current_token.line); if (parser_match(parser, Token_Identifier)) { parse_mode(parser, hotkey); @@ -232,7 +280,7 @@ parse_hotkey(struct parser *parser) if (buf_len(hotkey->mode_list) > 0) { if (!parser_match(parser, Token_Insert)) { - parser_report_error(parser, Error_Unexpected_Token, "expected '<'"); + parser_report_error(parser, parser_peek(parser), "expected '<'\n"); goto err; } } else { @@ -248,7 +296,7 @@ parse_hotkey(struct parser *parser) if (found_modifier) { if (!parser_match(parser, Token_Dash)) { - parser_report_error(parser, Error_Unexpected_Token, "expected '-'"); + parser_report_error(parser, parser_peek(parser), "expected '-'\n"); goto err; } } @@ -260,7 +308,7 @@ parse_hotkey(struct parser *parser) } else if (parser_match(parser, Token_Literal)) { parse_key_literal(parser, hotkey); } else { - parser_report_error(parser, Error_Unexpected_Token, "expected key-literal"); + parser_report_error(parser, parser_peek(parser), "expected key-literal\n"); goto err; } @@ -269,20 +317,23 @@ parse_hotkey(struct parser *parser) } if (parser_match(parser, Token_Command)) { - hotkey->command = parse_command(parser); + parse_command(parser, hotkey); + } else if (parser_match(parser, Token_BeginList)) { + parse_process_command_list(parser, hotkey); + if (parser->error) { + goto err; + } } else if (parser_match(parser, Token_Activate)) { - hotkey->flags |= Hotkey_Flag_Activate; - hotkey->command = parse_command(parser); - if (!table_find(parser->mode_map, hotkey->command)) { - parser_report_error(parser, Error_Undeclared_Ident, "undeclared identifier"); + parse_activate(parser, hotkey); + if (parser->error) { goto err; } } else { - parser_report_error(parser, Error_Unexpected_Token, "expected ':' followed by command or ';' followed by mode"); + parser_report_error(parser, parser_peek(parser), "expected ':' followed by command or ';' followed by mode\n"); goto err; } - printf("}\n"); + debug("}\n"); return hotkey; err: @@ -296,8 +347,6 @@ parse_mode_decl(struct parser *parser) struct mode *mode = malloc(sizeof(struct mode)); struct token identifier = parser_previous(parser); - mode->line = identifier.line; - mode->cursor = identifier.cursor; mode->name = copy_string_count(identifier.text, identifier.length); table_init(&mode->hotkey_map, 131, @@ -321,32 +370,96 @@ parse_mode_decl(struct parser *parser) void parse_declaration(struct parser *parser) { - struct mode *mode; parser_match(parser, Token_Decl); if (parser_match(parser, Token_Identifier)) { - mode = parse_mode_decl(parser); + struct token identifier = parser_previous(parser); + struct mode *mode = parse_mode_decl(parser); if (table_find(parser->mode_map, mode->name)) { - parser_report_error(parser, Error_Duplicate_Ident, - "#%d:%d duplicate declaration '%s'\n", - mode->line, mode->cursor, mode->name); + parser_report_error(parser, identifier, "duplicate declaration '%s'\n", mode->name); } else { table_add(parser->mode_map, mode->name, mode); } } else { - parser_report_error(parser, Error_Unexpected_Token, "expected identifier"); + parser_report_error(parser, parser_peek(parser), "expected identifier\n"); + } +} + +void parse_option_blacklist(struct parser *parser) +{ + if (parser_match(parser, Token_String)) { + struct token name_token = parser_previous(parser); + char *name = copy_string_count(name_token.text, name_token.length); + for (char *s = name; *s; ++s) *s = tolower(*s); + debug("\t%s\n", name); + table_add(parser->blacklst, name, name); + parse_option_blacklist(parser); + } else if (parser_match(parser, Token_EndList)) { + if (parser->blacklst->count == 0) { + parser_report_error(parser, parser_previous(parser), "list must contain at least one value\n"); + } + } else { + parser_report_error(parser, parser_peek(parser), "expected process name or ']'\n"); } } -void parse_config(struct parser *parser) +void parse_option_load(struct parser *parser, struct token option) +{ + struct token filename_token = parser_previous(parser); + char *filename = copy_string_count(filename_token.text, filename_token.length); + debug("\t%s\n", filename); + + if (*filename != '/') { + char *directory = file_directory(parser->file); + + size_t directory_length = strlen(directory); + size_t filename_length = strlen(filename); + size_t total_length = directory_length + filename_length + 2; + + char *absolutepath = malloc(total_length * sizeof(char)); + snprintf(absolutepath, total_length, "%s/%s", directory, filename); + free(filename); + + filename = absolutepath; + } + + buf_push(parser->load_directives, ((struct load_directive) { + .file = filename, + .option = option + })); +} + +void parse_option(struct parser *parser) +{ + parser_match(parser, Token_Option); + struct token option = parser_previous(parser); + if (token_equals(option, "blacklist")) { + if (parser_match(parser, Token_BeginList)) { + debug("blacklist :: #%d {\n", option.line); + parse_option_blacklist(parser); + debug("}\n"); + } else { + parser_report_error(parser, option, "expected '[' followed by list of process names\n"); + } + } else if (token_equals(option, "load")) { + if (parser_match(parser, Token_String)) { + debug("load :: #%d {\n", option.line); + parse_option_load(parser, option); + debug("}\n"); + } else { + parser_report_error(parser, option, "expected filename\n"); + } + } else { + parser_report_error(parser, option, "invalid option specified\n"); + } +} + +bool parse_config(struct parser *parser) { struct mode *mode; struct hotkey *hotkey; while (!parser_eof(parser)) { - if (parser->error) { - free_mode_map(parser->mode_map); - return; - } + if (parser->error) break; if ((parser_check(parser, Token_Identifier)) || (parser_check(parser, Token_Modifier)) || @@ -361,10 +474,64 @@ void parse_config(struct parser *parser) } } else if (parser_check(parser, Token_Decl)) { parse_declaration(parser); + } else if (parser_check(parser, Token_Option)) { + parse_option(parser); } else { - parser_report_error(parser, Error_Unexpected_Token, "expected decl, modifier or key-literal"); + parser_report_error(parser, parser_peek(parser), "expected decl, modifier or key-literal\n"); } } + + if (parser->error) { + free_mode_map(parser->mode_map); + free_blacklist(parser->blacklst); + return false; + } + + return true; +} + +struct hotkey * +parse_keypress(struct parser *parser) +{ + if ((parser_check(parser, Token_Modifier)) || + (parser_check(parser, Token_Literal)) || + (parser_check(parser, Token_Key_Hex)) || + (parser_check(parser, Token_Key))) { + struct hotkey *hotkey = malloc(sizeof(struct hotkey)); + memset(hotkey, 0, sizeof(struct hotkey)); + bool found_modifier; + + if ((found_modifier = parser_match(parser, Token_Modifier))) { + hotkey->flags = parse_modifier(parser); + if (parser->error) { + goto err; + } + } + + if (found_modifier) { + if (!parser_match(parser, Token_Dash)) { + goto err; + } + } + + if (parser_match(parser, Token_Key)) { + hotkey->key = parse_key(parser); + } else if (parser_match(parser, Token_Key_Hex)) { + hotkey->key = parse_key_hex(parser); + } else if (parser_match(parser, Token_Literal)) { + parse_key_literal(parser, hotkey); + } else { + goto err; + } + + return hotkey; + + err: + free(hotkey); + return NULL; + } + + return NULL; } struct token @@ -411,33 +578,58 @@ bool parser_match(struct parser *parser, enum token_type type) return false; } -void parser_report_error(struct parser *parser, enum parse_error_type error_type, const char *format, ...) +void parser_report_error(struct parser *parser, struct token token, const char *format, ...) { va_list args; va_start(args, format); + fprintf(stderr, "#%d:%d ", token.line, token.cursor); + vfprintf(stderr, format, args); + va_end(args); + parser->error = true; +} + +void parser_do_directives(struct parser *parser, struct hotloader *hotloader, bool thwart_hotloader) +{ + bool error = false; + + for (int i = 0; i < buf_len(parser->load_directives); ++i) { + struct load_directive load = parser->load_directives[i]; + + struct parser directive_parser; + if (parser_init(&directive_parser, parser->mode_map, parser->blacklst, load.file)) { + if (!thwart_hotloader) { + hotloader_add_file(hotloader, load.file); + } + + if (parse_config(&directive_parser)) { + parser_do_directives(&directive_parser, hotloader, thwart_hotloader); + } else { + error = true; + } + + parser_destroy(&directive_parser); + } else { + warn("skhd: could not open file '%s' from load directive #%d:%d\n", load.file, load.option.line, load.option.cursor); + } - if (error_type == Error_Unexpected_Token) { - fprintf(stderr, "#%d:%d ", parser->current_token.line, parser->current_token.cursor); - vfprintf(stderr, format, args); - fprintf(stderr, ", but got '%.*s'\n", parser->current_token.length, parser->current_token.text); - } else if (error_type == Error_Undeclared_Ident) { - fprintf(stderr, "#%d:%d ", parser->previous_token.line, parser->previous_token.cursor); - vfprintf(stderr, format, args); - fprintf(stderr, " '%.*s'\n", parser->previous_token.length, parser->previous_token.text); - } else if (error_type == Error_Duplicate_Ident) { - vfprintf(stderr, format, args); + free(load.file); } + buf_free(parser->load_directives); - va_end(args); - parser->error = true; + if (error) { + free_mode_map(parser->mode_map); + free_blacklist(parser->blacklst); + } } -bool parser_init(struct parser *parser, struct table *mode_map, char *file) +bool parser_init(struct parser *parser, struct table *mode_map, struct table *blacklst, char *file) { memset(parser, 0, sizeof(struct parser)); char *buffer = read_file(file); if (buffer) { + parser->file = file; parser->mode_map = mode_map; + parser->blacklst = blacklst; tokenizer_init(&parser->tokenizer, buffer); parser_advance(parser); return true; @@ -445,6 +637,14 @@ bool parser_init(struct parser *parser, struct table *mode_map, char *file) return false; } +bool parser_init_text(struct parser *parser, char *text) +{ + memset(parser, 0, sizeof(struct parser)); + tokenizer_init(&parser->tokenizer, text); + parser_advance(parser); + return true; +} + void parser_destroy(struct parser *parser) { free(parser->tokenizer.buffer); |