858 lines
23 KiB
Plaintext
858 lines
23 KiB
Plaintext
%{
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/*
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* vim:ts=4:sw=4:expandtab
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*
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* i3 - an improved dynamic tiling window manager
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* © 2009-2011 Michael Stapelberg and contributors (see also: LICENSE)
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*
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* cmdparse.y: the parser for commands you send to i3 (or bind on keys)
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <limits.h>
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#include "all.h"
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/** When the command did not include match criteria (!), we use the currently
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* focused command. Do not confuse this case with a command which included
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* criteria but which did not match any windows. This macro has to be called in
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* every command.
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*/
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#define HANDLE_EMPTY_MATCH do { \
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if (match_is_empty(¤t_match)) { \
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owindow *ow = smalloc(sizeof(owindow)); \
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ow->con = focused; \
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TAILQ_INIT(&owindows); \
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TAILQ_INSERT_TAIL(&owindows, ow, owindows); \
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} \
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} while (0)
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typedef struct yy_buffer_state *YY_BUFFER_STATE;
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extern int cmdyylex(struct context *context);
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extern int cmdyyparse(void);
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extern FILE *cmdyyin;
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YY_BUFFER_STATE cmdyy_scan_string(const char *);
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static struct context *context;
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static Match current_match;
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/*
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* Helper data structure for an operation window (window on which the operation
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* will be performed). Used to build the TAILQ owindows.
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*
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*/
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typedef struct owindow {
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Con *con;
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TAILQ_ENTRY(owindow) owindows;
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} owindow;
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static TAILQ_HEAD(owindows_head, owindow) owindows;
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/* Holds the JSON which will be returned via IPC or NULL for the default return
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* message */
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static char *json_output;
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/* We don’t need yydebug for now, as we got decent error messages using
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* yyerror(). Should you ever want to extend the parser, it might be handy
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* to just comment it in again, so it stays here. */
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//int cmdyydebug = 1;
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void cmdyyerror(const char *error_message) {
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ELOG("\n");
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ELOG("CMD: %s\n", error_message);
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ELOG("CMD: in command:\n");
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ELOG("CMD: %s\n", context->line_copy);
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ELOG("CMD: ");
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for (int c = 1; c <= context->last_column; c++)
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if (c >= context->first_column)
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printf("^");
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else printf(" ");
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printf("\n");
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ELOG("\n");
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context->compact_error = sstrdup(error_message);
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}
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int cmdyywrap() {
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return 1;
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}
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char *parse_cmd(const char *new) {
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LOG("COMMAND: *%s*\n", new);
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cmdyy_scan_string(new);
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match_init(¤t_match);
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context = scalloc(sizeof(struct context));
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context->filename = "cmd";
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FREE(json_output);
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if (cmdyyparse() != 0) {
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fprintf(stderr, "Could not parse command\n");
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asprintf(&json_output, "{\"success\":false, \"error\":\"%s at position %d\"}",
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context->compact_error, context->first_column);
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FREE(context->line_copy);
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FREE(context->compact_error);
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free(context);
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return json_output;
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}
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printf("done, json output = %s\n", json_output);
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FREE(context->line_copy);
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FREE(context->compact_error);
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free(context);
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return json_output;
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}
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%}
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%error-verbose
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%lex-param { struct context *context }
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%union {
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char *string;
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char chr;
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int number;
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}
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%token TOK_EXEC "exec"
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%token TOK_EXIT "exit"
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%token TOK_RELOAD "reload"
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%token TOK_RESTART "restart"
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%token TOK_KILL "kill"
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%token TOK_WINDOW "window"
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%token TOK_CLIENT "client"
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%token TOK_FULLSCREEN "fullscreen"
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%token TOK_GLOBAL "global"
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%token TOK_LAYOUT "layout"
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%token TOK_DEFAULT "default"
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%token TOK_STACKED "stacked"
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%token TOK_TABBED "tabbed"
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%token TOK_BORDER "border"
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%token TOK_NORMAL "normal"
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%token TOK_NONE "none"
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%token TOK_1PIXEL "1pixel"
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%token TOK_MODE "mode"
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%token TOK_TILING "tiling"
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%token TOK_FLOATING "floating"
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%token TOK_MODE_TOGGLE "mode_toggle"
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%token TOK_ENABLE "enable"
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%token TOK_DISABLE "disable"
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%token TOK_WORKSPACE "workspace"
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%token TOK_TOGGLE "toggle"
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%token TOK_FOCUS "focus"
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%token TOK_MOVE "move"
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%token TOK_OPEN "open"
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%token TOK_NEXT "next"
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%token TOK_PREV "prev"
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%token TOK_SPLIT "split"
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%token TOK_HORIZONTAL "horizontal"
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%token TOK_VERTICAL "vertical"
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%token TOK_UP "up"
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%token TOK_DOWN "down"
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%token TOK_LEFT "left"
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%token TOK_RIGHT "right"
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%token TOK_PARENT "parent"
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%token TOK_CHILD "child"
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%token TOK_APPEND_LAYOUT "append_layout"
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%token TOK_MARK "mark"
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%token TOK_RESIZE "resize"
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%token TOK_GROW "grow"
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%token TOK_SHRINK "shrink"
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%token TOK_PX "px"
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%token TOK_OR "or"
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%token TOK_PPT "ppt"
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%token TOK_NOP "nop"
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%token TOK_CLASS "class"
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%token TOK_ID "id"
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%token TOK_CON_ID "con_id"
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%token TOK_TITLE "title"
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%token <string> STR "<string>"
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%token <number> NUMBER "<number>"
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%type <number> direction
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%type <number> split_direction
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%type <number> fullscreen_mode
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%type <number> level
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%type <number> window_mode
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%type <number> boolean
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%type <number> border_style
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%type <number> layout_mode
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%type <number> resize_px
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%type <number> resize_way
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%type <number> resize_tiling
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%type <number> optional_kill_mode
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%%
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commands:
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commands ';' command
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| command
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{
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owindow *current;
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printf("single command completely parsed, dropping state...\n");
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while (!TAILQ_EMPTY(&owindows)) {
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current = TAILQ_FIRST(&owindows);
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TAILQ_REMOVE(&owindows, current, owindows);
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free(current);
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}
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match_init(¤t_match);
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}
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;
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command:
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match operations
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;
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match:
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| matchstart criteria matchend
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{
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printf("match parsed\n");
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}
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;
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matchstart:
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'['
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{
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printf("start\n");
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match_init(¤t_match);
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TAILQ_INIT(&owindows);
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/* copy all_cons */
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Con *con;
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TAILQ_FOREACH(con, &all_cons, all_cons) {
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owindow *ow = smalloc(sizeof(owindow));
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ow->con = con;
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TAILQ_INSERT_TAIL(&owindows, ow, owindows);
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}
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}
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;
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matchend:
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']'
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{
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owindow *next, *current;
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printf("match specification finished, matching...\n");
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/* copy the old list head to iterate through it and start with a fresh
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* list which will contain only matching windows */
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struct owindows_head old = owindows;
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TAILQ_INIT(&owindows);
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for (next = TAILQ_FIRST(&old); next != TAILQ_END(&old);) {
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/* make a copy of the next pointer and advance the pointer to the
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* next element as we are going to invalidate the element’s
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* next/prev pointers by calling TAILQ_INSERT_TAIL later */
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current = next;
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next = TAILQ_NEXT(next, owindows);
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printf("checking if con %p / %s matches\n", current->con, current->con->name);
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if (current_match.con_id != NULL) {
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if (current_match.con_id == current->con) {
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printf("matches container!\n");
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TAILQ_INSERT_TAIL(&owindows, current, owindows);
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}
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} else if (current_match.mark != NULL && current->con->mark != NULL &&
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strcasecmp(current_match.mark, current->con->mark) == 0) {
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printf("match by mark\n");
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TAILQ_INSERT_TAIL(&owindows, current, owindows);
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} else {
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if (current->con->window == NULL)
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continue;
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if (match_matches_window(¤t_match, current->con->window)) {
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printf("matches window!\n");
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TAILQ_INSERT_TAIL(&owindows, current, owindows);
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} else {
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printf("doesnt match\n");
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free(current);
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}
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}
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}
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TAILQ_FOREACH(current, &owindows, owindows) {
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printf("matching: %p / %s\n", current->con, current->con->name);
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}
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}
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;
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criteria:
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criteria criterion
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| criterion
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;
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criterion:
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TOK_CLASS '=' STR
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{
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printf("criteria: class = %s\n", $3);
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current_match.class = $3;
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}
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| TOK_CON_ID '=' STR
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{
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printf("criteria: id = %s\n", $3);
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char *end;
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long parsed = strtol($3, &end, 10);
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if (parsed == LONG_MIN ||
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parsed == LONG_MAX ||
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parsed < 0 ||
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(end && *end != '\0')) {
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ELOG("Could not parse con id \"%s\"\n", $3);
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} else {
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current_match.con_id = (Con*)parsed;
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printf("id as int = %p\n", current_match.con_id);
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}
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}
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| TOK_ID '=' STR
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{
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printf("criteria: window id = %s\n", $3);
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char *end;
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long parsed = strtol($3, &end, 10);
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if (parsed == LONG_MIN ||
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parsed == LONG_MAX ||
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parsed < 0 ||
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(end && *end != '\0')) {
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ELOG("Could not parse window id \"%s\"\n", $3);
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} else {
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current_match.id = parsed;
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printf("window id as int = %d\n", current_match.id);
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}
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}
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| TOK_MARK '=' STR
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{
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printf("criteria: mark = %s\n", $3);
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current_match.mark = $3;
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}
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| TOK_TITLE '=' STR
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{
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printf("criteria: title = %s\n", $3);
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current_match.title = $3;
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}
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;
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operations:
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operation
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| operations ',' operation
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;
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operation:
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exec
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| exit
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| restart
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| reload
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| border
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| layout
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| append_layout
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| move
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| workspace
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| focus
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| kill
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| open
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| fullscreen
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| split
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| floating
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| mark
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| resize
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| nop
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| mode
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;
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exec:
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TOK_EXEC STR
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{
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printf("should execute %s\n", $2);
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start_application($2);
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free($2);
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}
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;
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exit:
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TOK_EXIT
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{
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printf("exit, bye bye\n");
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exit(0);
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}
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;
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reload:
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TOK_RELOAD
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{
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printf("reloading\n");
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kill_configerror_nagbar(false);
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load_configuration(conn, NULL, true);
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x_set_i3_atoms();
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/* Send an IPC event just in case the ws names have changed */
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ipc_send_event("workspace", I3_IPC_EVENT_WORKSPACE, "{\"change\":\"reload\"}");
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}
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;
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restart:
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TOK_RESTART
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{
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printf("restarting i3\n");
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i3_restart(false);
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}
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;
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focus:
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TOK_FOCUS
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{
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owindow *current;
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if (match_is_empty(¤t_match)) {
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ELOG("You have to specify which window/container should be focused.\n");
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ELOG("Example: [class=\"urxvt\" title=\"irssi\"] focus\n");
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asprintf(&json_output, "{\"success\":false, \"error\":\"You have to "
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"specify which window/container should be focused\"}");
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break;
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}
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int count = 0;
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TAILQ_FOREACH(current, &owindows, owindows) {
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Con *ws = con_get_workspace(current->con);
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workspace_show(ws->name);
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LOG("focusing %p / %s\n", current->con, current->con->name);
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con_focus(current->con);
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count++;
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}
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if (count > 1)
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LOG("WARNING: Your criteria for the focus command matches %d containers, "
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"while only exactly one container can be focused at a time.\n", count);
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tree_render();
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}
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| TOK_FOCUS direction
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{
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int direction = $2;
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switch (direction) {
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case TOK_LEFT:
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LOG("Focusing left\n");
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tree_next('p', HORIZ);
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break;
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case TOK_RIGHT:
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LOG("Focusing right\n");
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tree_next('n', HORIZ);
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break;
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case TOK_UP:
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LOG("Focusing up\n");
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tree_next('p', VERT);
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break;
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case TOK_DOWN:
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LOG("Focusing down\n");
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tree_next('n', VERT);
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break;
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default:
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ELOG("Invalid focus direction (%d)\n", direction);
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break;
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}
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tree_render();
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}
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| TOK_FOCUS window_mode
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{
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printf("should focus: ");
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if ($2 == TOK_TILING)
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printf("tiling\n");
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else if ($2 == TOK_FLOATING)
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printf("floating\n");
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else printf("mode toggle\n");
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Con *ws = con_get_workspace(focused);
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Con *current;
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if (ws != NULL) {
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int to_focus = $2;
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if ($2 == TOK_MODE_TOGGLE) {
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current = TAILQ_FIRST(&(ws->focus_head));
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if (current->type == CT_FLOATING_CON)
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to_focus = TOK_TILING;
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else to_focus = TOK_FLOATING;
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}
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TAILQ_FOREACH(current, &(ws->focus_head), focused) {
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if ((to_focus == TOK_FLOATING && current->type != CT_FLOATING_CON) ||
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(to_focus == TOK_TILING && current->type == CT_FLOATING_CON))
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continue;
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con_focus(con_descend_focused(current));
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break;
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}
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}
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tree_render();
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}
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| TOK_FOCUS level
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{
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if ($2 == TOK_PARENT)
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level_up();
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else level_down();
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tree_render();
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}
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;
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window_mode:
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TOK_TILING { $$ = TOK_TILING; }
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| TOK_FLOATING { $$ = TOK_FLOATING; }
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| TOK_MODE_TOGGLE { $$ = TOK_MODE_TOGGLE; }
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;
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level:
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TOK_PARENT { $$ = TOK_PARENT; }
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| TOK_CHILD { $$ = TOK_CHILD; }
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;
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kill:
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TOK_KILL optional_kill_mode
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{
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owindow *current;
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printf("killing!\n");
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/* check if the match is empty, not if the result is empty */
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if (match_is_empty(¤t_match))
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tree_close_con($2);
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else {
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TAILQ_FOREACH(current, &owindows, owindows) {
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printf("matching: %p / %s\n", current->con, current->con->name);
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tree_close(current->con, $2, false);
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}
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}
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tree_render();
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}
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;
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optional_kill_mode:
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/* empty */ { $$ = KILL_WINDOW; }
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| TOK_WINDOW { $$ = KILL_WINDOW; }
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| TOK_CLIENT { $$ = KILL_CLIENT; }
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;
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workspace:
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TOK_WORKSPACE TOK_NEXT
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{
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workspace_next();
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tree_render();
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}
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| TOK_WORKSPACE TOK_PREV
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{
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workspace_prev();
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tree_render();
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}
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| TOK_WORKSPACE STR
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{
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printf("should switch to workspace %s\n", $2);
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workspace_show($2);
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free($2);
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tree_render();
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}
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;
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open:
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TOK_OPEN
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{
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printf("opening new container\n");
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Con *con = tree_open_con(NULL, NULL);
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con_focus(con);
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||
asprintf(&json_output, "{\"success\":true, \"id\":%ld}", (long int)con);
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
fullscreen:
|
||
TOK_FULLSCREEN fullscreen_mode
|
||
{
|
||
printf("toggling fullscreen, mode = %s\n", ($2 == CF_OUTPUT ? "normal" : "global"));
|
||
owindow *current;
|
||
|
||
HANDLE_EMPTY_MATCH;
|
||
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
con_toggle_fullscreen(current->con, $2);
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
fullscreen_mode:
|
||
/* empty */ { $$ = CF_OUTPUT; }
|
||
| TOK_GLOBAL { $$ = CF_GLOBAL; }
|
||
;
|
||
|
||
split:
|
||
TOK_SPLIT split_direction
|
||
{
|
||
/* TODO: use matches */
|
||
printf("splitting in direction %c\n", $2);
|
||
tree_split(focused, ($2 == 'v' ? VERT : HORIZ));
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
split_direction:
|
||
TOK_HORIZONTAL { $$ = 'h'; }
|
||
| 'h' { $$ = 'h'; }
|
||
| TOK_VERTICAL { $$ = 'v'; }
|
||
| 'v' { $$ = 'v'; }
|
||
;
|
||
|
||
floating:
|
||
TOK_FLOATING boolean
|
||
{
|
||
HANDLE_EMPTY_MATCH;
|
||
|
||
owindow *current;
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
if ($2 == TOK_TOGGLE) {
|
||
printf("should toggle mode\n");
|
||
toggle_floating_mode(current->con, false);
|
||
} else {
|
||
printf("should switch mode to %s\n", ($2 == TOK_FLOATING ? "floating" : "tiling"));
|
||
if ($2 == TOK_ENABLE) {
|
||
floating_enable(current->con, false);
|
||
} else {
|
||
floating_disable(current->con, false);
|
||
}
|
||
}
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
boolean:
|
||
TOK_ENABLE { $$ = TOK_ENABLE; }
|
||
| TOK_DISABLE { $$ = TOK_DISABLE; }
|
||
| TOK_TOGGLE { $$ = TOK_TOGGLE; }
|
||
;
|
||
|
||
border:
|
||
TOK_BORDER border_style
|
||
{
|
||
printf("border style should be changed to %d\n", $2);
|
||
owindow *current;
|
||
|
||
HANDLE_EMPTY_MATCH;
|
||
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
if ($2 == TOK_TOGGLE) {
|
||
current->con->border_style++;
|
||
current->con->border_style %= 3;
|
||
} else current->con->border_style = $2;
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
border_style:
|
||
TOK_NORMAL { $$ = BS_NORMAL; }
|
||
| TOK_NONE { $$ = BS_NONE; }
|
||
| TOK_1PIXEL { $$ = BS_1PIXEL; }
|
||
| TOK_TOGGLE { $$ = TOK_TOGGLE; }
|
||
;
|
||
|
||
move:
|
||
TOK_MOVE direction
|
||
{
|
||
printf("moving in direction %d\n", $2);
|
||
tree_move($2);
|
||
|
||
tree_render();
|
||
}
|
||
| TOK_MOVE TOK_WORKSPACE STR
|
||
{
|
||
owindow *current;
|
||
|
||
printf("should move window to workspace %s\n", $3);
|
||
/* get the workspace */
|
||
Con *ws = workspace_get($3, NULL);
|
||
free($3);
|
||
|
||
HANDLE_EMPTY_MATCH;
|
||
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
con_move_to_workspace(current->con, ws);
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
append_layout:
|
||
TOK_APPEND_LAYOUT STR
|
||
{
|
||
printf("restoring \"%s\"\n", $2);
|
||
tree_append_json($2);
|
||
free($2);
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
layout:
|
||
TOK_LAYOUT layout_mode
|
||
{
|
||
printf("changing layout to %d\n", $2);
|
||
owindow *current;
|
||
|
||
/* check if the match is empty, not if the result is empty */
|
||
if (match_is_empty(¤t_match))
|
||
con_set_layout(focused->parent, $2);
|
||
else {
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
con_set_layout(current->con, $2);
|
||
}
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
layout_mode:
|
||
TOK_DEFAULT { $$ = L_DEFAULT; }
|
||
| TOK_STACKED { $$ = L_STACKED; }
|
||
| TOK_TABBED { $$ = L_TABBED; }
|
||
;
|
||
|
||
mark:
|
||
TOK_MARK STR
|
||
{
|
||
printf("marking window with str %s\n", $2);
|
||
owindow *current;
|
||
|
||
HANDLE_EMPTY_MATCH;
|
||
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
current->con->mark = sstrdup($2);
|
||
}
|
||
|
||
free($<string>2);
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
nop:
|
||
TOK_NOP STR
|
||
{
|
||
printf("-------------------------------------------------\n");
|
||
printf(" NOP: %s\n", $2);
|
||
printf("-------------------------------------------------\n");
|
||
free($2);
|
||
}
|
||
;
|
||
|
||
resize:
|
||
TOK_RESIZE resize_way direction resize_px resize_tiling
|
||
{
|
||
/* resize <grow|shrink> <direction> [<px> px] [or <ppt> ppt] */
|
||
printf("resizing in way %d, direction %d, px %d or ppt %d\n", $2, $3, $4, $5);
|
||
int direction = $3;
|
||
int px = $4;
|
||
int ppt = $5;
|
||
if ($2 == TOK_SHRINK) {
|
||
px *= -1;
|
||
ppt *= -1;
|
||
}
|
||
|
||
if (con_is_floating(focused)) {
|
||
printf("floating resize\n");
|
||
if (direction == TOK_UP) {
|
||
focused->parent->rect.y -= px;
|
||
focused->parent->rect.height += px;
|
||
} else if (direction == TOK_DOWN) {
|
||
focused->rect.height += px;
|
||
} else if (direction == TOK_LEFT) {
|
||
focused->rect.x -= px;
|
||
focused->rect.width += px;
|
||
} else {
|
||
focused->rect.width += px;
|
||
}
|
||
} else {
|
||
LOG("tiling resize\n");
|
||
/* get the default percentage */
|
||
int children = con_num_children(focused->parent);
|
||
Con *other;
|
||
LOG("ins. %d children\n", children);
|
||
double percentage = 1.0 / children;
|
||
LOG("default percentage = %f\n", percentage);
|
||
|
||
if (direction == TOK_UP || direction == TOK_LEFT) {
|
||
other = TAILQ_PREV(focused, nodes_head, nodes);
|
||
} else {
|
||
other = TAILQ_NEXT(focused, nodes);
|
||
}
|
||
if (other == TAILQ_END(workspaces)) {
|
||
LOG("No other container in this direction found, cannot resize.\n");
|
||
return 0;
|
||
}
|
||
LOG("other->percent = %f\n", other->percent);
|
||
LOG("focused->percent before = %f\n", focused->percent);
|
||
if (focused->percent == 0.0)
|
||
focused->percent = percentage;
|
||
if (other->percent == 0.0)
|
||
other->percent = percentage;
|
||
focused->percent += ((double)ppt / 100.0);
|
||
other->percent -= ((double)ppt / 100.0);
|
||
LOG("focused->percent after = %f\n", focused->percent);
|
||
LOG("other->percent after = %f\n", other->percent);
|
||
}
|
||
|
||
tree_render();
|
||
}
|
||
;
|
||
|
||
resize_px:
|
||
/* empty */
|
||
{
|
||
$$ = 10;
|
||
}
|
||
| NUMBER TOK_PX
|
||
{
|
||
$$ = $1;
|
||
}
|
||
;
|
||
|
||
resize_tiling:
|
||
/* empty */
|
||
{
|
||
$$ = 10;
|
||
}
|
||
| TOK_OR NUMBER TOK_PPT
|
||
{
|
||
$$ = $2;
|
||
}
|
||
;
|
||
|
||
resize_way:
|
||
TOK_GROW { $$ = TOK_GROW; }
|
||
| TOK_SHRINK { $$ = TOK_SHRINK; }
|
||
;
|
||
|
||
direction:
|
||
TOK_UP { $$ = TOK_UP; }
|
||
| TOK_DOWN { $$ = TOK_DOWN; }
|
||
| TOK_LEFT { $$ = TOK_LEFT; }
|
||
| TOK_RIGHT { $$ = TOK_RIGHT; }
|
||
;
|
||
|
||
mode:
|
||
TOK_MODE STR
|
||
{
|
||
switch_mode($2);
|
||
}
|
||
;
|