718 lines
19 KiB
Plaintext
718 lines
19 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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* © 2009-2010 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 "all.h"
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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 bindings_head *current_bindings;
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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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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_ATTACH "attach"
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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_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_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_LEVEL "level"
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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_AFTER "after"
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%token TOK_BEFORE "before"
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%token TOK_RESTORE "restore"
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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 WHITESPACE "<whitespace>"
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%token STR "<string>"
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%token NUMBER "<number>"
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%%
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commands: /* empty */
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| commands optwhitespace ';' optwhitespace 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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optwhitespace:
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| WHITESPACE
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;
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command:
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match optwhitespace operations
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;
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match:
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| matchstart optwhitespace criteria optwhitespace 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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TOK_CLASS '=' STR
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{
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printf("criteria: class = %s\n", $<string>3);
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current_match.class = $<string>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", $<string>3);
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/* TODO: correctly parse number */
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current_match.con_id = atoi($<string>3);
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printf("id as int = %d\n", current_match.con_id);
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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", $<string>3);
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/* TODO: correctly parse number */
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current_match.id = atoi($<string>3);
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printf("window id as int = %d\n", current_match.id);
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}
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| TOK_MARK '=' STR
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{
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printf("criteria: mark = %s\n", $<string>3);
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current_match.mark = $<string>3;
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}
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;
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operations:
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operation
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| operation optwhitespace
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| operations ',' optwhitespace 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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| restore
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| move
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| workspace
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| attach
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| focus
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| kill
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| open
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| fullscreen
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| next
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| prev
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| split
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| mode
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| level
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| mark
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| resize
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| nop
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;
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exec:
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TOK_EXEC WHITESPACE STR
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{
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printf("should execute %s\n", $<string>3);
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start_application($<string>3);
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free($<string>3);
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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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load_configuration(conn, NULL, true);
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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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attach:
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TOK_ATTACH
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{
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printf("should attach\n");
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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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printf("should focus\n");
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if (match_is_empty(¤t_match)) {
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/* TODO: better error message */
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LOG("Error: The foucs command requires you to use some criteria.\n");
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return;
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}
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/* TODO: warning if the match contains more than one entry. does not
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* make so much sense when focusing */
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TAILQ_FOREACH(current, &owindows, owindows) {
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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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}
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}
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;
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kill:
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TOK_KILL
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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();
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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, true, false);
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}
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}
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}
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;
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workspace:
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TOK_WORKSPACE WHITESPACE STR
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{
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printf("should switch to workspace %s\n", $<string>3);
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workspace_show($<string>3);
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free($<string>3);
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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);
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asprintf(&json_output, "{\"success\":true, \"id\":%d}", (long int)con);
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}
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;
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fullscreen:
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TOK_FULLSCREEN
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{
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printf("toggling fullscreen\n");
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owindow *current;
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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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con_toggle_fullscreen(focused);
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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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con_toggle_fullscreen(current->con);
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}
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}
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}
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;
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next:
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TOK_NEXT WHITESPACE direction
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{
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/* TODO: use matches */
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printf("should select next window in direction %c\n", $<chr>3);
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tree_next('n', ($<chr>3 == 'v' ? VERT : HORIZ));
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}
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;
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prev:
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TOK_PREV WHITESPACE direction
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{
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/* TODO: use matches */
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printf("should select prev window in direction %c\n", $<chr>3);
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tree_next('p', ($<chr>3 == 'v' ? VERT : HORIZ));
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}
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;
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split:
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TOK_SPLIT WHITESPACE direction
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{
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/* TODO: use matches */
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printf("splitting in direction %c\n", $<chr>3);
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tree_split(focused, ($<chr>3 == 'v' ? VERT : HORIZ));
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}
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;
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direction:
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TOK_HORIZONTAL { $<chr>$ = 'h'; }
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| 'h' { $<chr>$ = 'h'; }
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| TOK_VERTICAL { $<chr>$ = 'v'; }
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| 'v' { $<chr>$ = 'v'; }
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;
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mode:
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TOK_MODE WHITESPACE window_mode
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{
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if ($<number>3 == TOK_TOGGLE) {
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printf("should toggle mode\n");
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toggle_floating_mode(focused, false);
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} else {
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printf("should switch mode to %s\n", ($<number>3 == TOK_FLOATING ? "floating" : "tiling"));
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if ($<number>3 == TOK_FLOATING) {
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floating_enable(focused, false);
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} else {
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floating_disable(focused, false);
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}
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}
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}
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;
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window_mode:
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TOK_FLOATING { $<number>$ = TOK_FLOATING; }
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| TOK_TILING { $<number>$ = TOK_TILING; }
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| TOK_TOGGLE { $<number>$ = TOK_TOGGLE; }
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;
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border:
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TOK_BORDER WHITESPACE border_style
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{
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printf("border style should be changed to %d\n", $<number>3);
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owindow *current;
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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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focused->border_style = $<number>3;
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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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current->con->border_style = $<number>3;
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}
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}
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}
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;
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border_style:
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TOK_NORMAL { $<number>$ = BS_NORMAL; }
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| TOK_NONE { $<number>$ = BS_NONE; }
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| TOK_1PIXEL { $<number>$ = BS_1PIXEL; }
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;
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level:
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TOK_LEVEL WHITESPACE level_direction
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{
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printf("level %c\n", $<chr>3);
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if ($<chr>3 == 'u')
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level_up();
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else level_down();
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}
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;
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level_direction:
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TOK_UP { $<chr>$ = 'u'; }
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| TOK_DOWN { $<chr>$ = 'd'; }
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;
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move:
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TOK_MOVE WHITESPACE before_after WHITESPACE direction
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{
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printf("moving: %s and %c\n", ($<number>3 == TOK_BEFORE ? "before" : "after"), $<chr>5);
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/* TODO: change API for the next call, we need to convert in both directions while ideally
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* we should not need any of both */
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tree_move(($<number>3 == TOK_BEFORE ? 'p' : 'n'), ($<chr>5 == 'v' ? VERT : HORIZ));
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}
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| TOK_MOVE WHITESPACE TOK_WORKSPACE WHITESPACE STR
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{
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owindow *current;
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printf("should move window to workspace %s\n", $<string>5);
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/* get the workspace */
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Con *ws = workspace_get($<string>5);
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free($<string>5);
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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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con_move_to_workspace(focused, ws);
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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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con_move_to_workspace(current->con, ws);
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}
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}
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}
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;
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before_after:
|
||
TOK_BEFORE { $<number>$ = TOK_BEFORE; }
|
||
| TOK_AFTER { $<number>$ = TOK_AFTER; }
|
||
;
|
||
|
||
restore:
|
||
TOK_RESTORE WHITESPACE STR
|
||
{
|
||
printf("restoring \"%s\"\n", $<string>3);
|
||
tree_append_json($<string>3);
|
||
free($<string>3);
|
||
}
|
||
;
|
||
|
||
layout:
|
||
TOK_LAYOUT WHITESPACE layout_mode
|
||
{
|
||
printf("changing layout to %d\n", $<number>3);
|
||
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, $<number>3);
|
||
else {
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
con_set_layout(current->con, $<number>3);
|
||
}
|
||
}
|
||
|
||
}
|
||
;
|
||
|
||
layout_mode:
|
||
TOK_DEFAULT { $<number>$ = L_DEFAULT; }
|
||
| TOK_STACKED { $<number>$ = L_STACKED; }
|
||
| TOK_TABBED { $<number>$ = L_TABBED; }
|
||
;
|
||
|
||
mark:
|
||
TOK_MARK WHITESPACE STR
|
||
{
|
||
printf("marking window with str %s\n", $<string>3);
|
||
owindow *current;
|
||
|
||
/* check if the match is empty, not if the result is empty */
|
||
if (match_is_empty(¤t_match))
|
||
focused->mark = sstrdup($<string>3);
|
||
else {
|
||
TAILQ_FOREACH(current, &owindows, owindows) {
|
||
printf("matching: %p / %s\n", current->con, current->con->name);
|
||
current->con->mark = sstrdup($<string>3);
|
||
}
|
||
}
|
||
|
||
free($<string>3);
|
||
}
|
||
;
|
||
|
||
nop:
|
||
TOK_NOP WHITESPACE STR
|
||
{
|
||
printf("-------------------------------------------------\n");
|
||
printf(" NOP: %s\n", $<string>3);
|
||
printf("-------------------------------------------------\n");
|
||
free($<string>3);
|
||
}
|
||
;
|
||
|
||
resize:
|
||
TOK_RESIZE WHITESPACE resize_way WHITESPACE 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", $<number>3, $<number>5, $<number>6, $<number>7);
|
||
int direction = $<number>5;
|
||
int px = $<number>6;
|
||
int ppt = $<number>7;
|
||
if ($<number>3 == 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);
|
||
}
|
||
}
|
||
;
|
||
|
||
resize_px:
|
||
/* empty */
|
||
{
|
||
$<number>$ = 10;
|
||
}
|
||
| WHITESPACE NUMBER WHITESPACE TOK_PX
|
||
{
|
||
$<number>$ = $<number>2;
|
||
}
|
||
;
|
||
|
||
resize_tiling:
|
||
/* empty */
|
||
{
|
||
$<number>$ = 10;
|
||
}
|
||
| WHITESPACE TOK_OR WHITESPACE NUMBER WHITESPACE TOK_PPT
|
||
{
|
||
$<number>$ = $<number>4;
|
||
}
|
||
;
|
||
|
||
resize_way:
|
||
TOK_GROW { $<number>$ = TOK_GROW; }
|
||
| TOK_SHRINK { $<number>$ = TOK_SHRINK; }
|
||
;
|
||
|
||
direction:
|
||
TOK_UP { $<number>$ = TOK_UP; }
|
||
| TOK_DOWN { $<number>$ = TOK_DOWN; }
|
||
| TOK_LEFT { $<number>$ = TOK_LEFT; }
|
||
| TOK_RIGHT { $<number>$ = TOK_RIGHT; }
|
||
;
|