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-rw-r--r--cmd-parse.c2229
1 files changed, 2229 insertions, 0 deletions
diff --git a/cmd-parse.c b/cmd-parse.c
new file mode 100644
index 0000000..309c6fe
--- /dev/null
+++ b/cmd-parse.c
@@ -0,0 +1,2229 @@
+#include <stdlib.h>
+#include <string.h>
+#define YYBYACC 1
+#define YYMAJOR 1
+#define YYMINOR 9
+#define YYLEX yylex()
+#define YYEMPTY -1
+#define yyclearin (yychar=(YYEMPTY))
+#define yyerrok (yyerrflag=0)
+#define YYRECOVERING() (yyerrflag!=0)
+#define YYPREFIX "yy"
+#line 20 "cmd-parse.y"
+
+#include <sys/types.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#include "tmux.h"
+
+static int yylex(void);
+static int yyparse(void);
+static int printflike(1,2) yyerror(const char *, ...);
+
+static char *yylex_token(int);
+static char *yylex_format(void);
+
+struct cmd_parse_scope {
+ int flag;
+ TAILQ_ENTRY (cmd_parse_scope) entry;
+};
+
+enum cmd_parse_argument_type {
+ CMD_PARSE_STRING,
+ CMD_PARSE_COMMANDS,
+ CMD_PARSE_PARSED_COMMANDS
+};
+
+struct cmd_parse_argument {
+ enum cmd_parse_argument_type type;
+ char *string;
+ struct cmd_parse_commands *commands;
+ struct cmd_list *cmdlist;
+
+ TAILQ_ENTRY(cmd_parse_argument) entry;
+};
+TAILQ_HEAD(cmd_parse_arguments, cmd_parse_argument);
+
+struct cmd_parse_command {
+ u_int line;
+ struct cmd_parse_arguments arguments;
+
+ TAILQ_ENTRY(cmd_parse_command) entry;
+};
+TAILQ_HEAD(cmd_parse_commands, cmd_parse_command);
+
+struct cmd_parse_state {
+ FILE *f;
+
+ const char *buf;
+ size_t len;
+ size_t off;
+
+ int condition;
+ int eol;
+ int eof;
+ struct cmd_parse_input *input;
+ u_int escapes;
+
+ char *error;
+ struct cmd_parse_commands *commands;
+
+ struct cmd_parse_scope *scope;
+ TAILQ_HEAD(, cmd_parse_scope) stack;
+};
+static struct cmd_parse_state parse_state;
+
+static char *cmd_parse_get_error(const char *, u_int, const char *);
+static void cmd_parse_free_command(struct cmd_parse_command *);
+static struct cmd_parse_commands *cmd_parse_new_commands(void);
+static void cmd_parse_free_commands(struct cmd_parse_commands *);
+static void cmd_parse_build_commands(struct cmd_parse_commands *,
+ struct cmd_parse_input *, struct cmd_parse_result *);
+static void cmd_parse_print_commands(struct cmd_parse_input *,
+ struct cmd_list *);
+
+#line 101 "cmd-parse.y"
+#ifndef YYSTYPE_DEFINED
+#define YYSTYPE_DEFINED
+typedef union
+{
+ char *token;
+ struct cmd_parse_arguments *arguments;
+ struct cmd_parse_argument *argument;
+ int flag;
+ struct {
+ int flag;
+ struct cmd_parse_commands *commands;
+ } elif;
+ struct cmd_parse_commands *commands;
+ struct cmd_parse_command *command;
+} YYSTYPE;
+#endif /* YYSTYPE_DEFINED */
+#line 110 "cmd-parse.c"
+#define ERROR 257
+#define HIDDEN 258
+#define IF 259
+#define ELSE 260
+#define ELIF 261
+#define ENDIF 262
+#define FORMAT 263
+#define TOKEN 264
+#define EQUALS 265
+#define YYERRCODE 256
+const short yylhs[] =
+ { -1,
+ 0, 0, 10, 10, 11, 11, 11, 11, 2, 2,
+ 1, 17, 17, 18, 16, 5, 19, 6, 20, 13,
+ 13, 13, 13, 7, 7, 12, 12, 12, 12, 12,
+ 15, 15, 15, 14, 14, 14, 14, 8, 8, 3,
+ 3, 4, 4, 4, 9, 9,
+};
+const short yylen[] =
+ { 2,
+ 0, 1, 2, 3, 0, 1, 1, 1, 1, 1,
+ 1, 0, 1, 1, 2, 2, 1, 2, 1, 4,
+ 7, 5, 8, 3, 4, 1, 2, 3, 3, 1,
+ 1, 2, 3, 3, 5, 4, 6, 2, 3, 1,
+ 2, 1, 1, 2, 2, 3,
+};
+const short yydefred[] =
+ { 0,
+ 0, 0, 14, 0, 0, 0, 0, 0, 7, 30,
+ 26, 6, 0, 0, 15, 9, 10, 16, 11, 0,
+ 0, 0, 0, 3, 0, 0, 0, 17, 0, 19,
+ 0, 0, 0, 34, 4, 28, 29, 42, 43, 0,
+ 33, 0, 0, 0, 0, 20, 18, 0, 0, 36,
+ 0, 44, 0, 0, 41, 0, 0, 22, 0, 39,
+ 0, 35, 0, 45, 0, 0, 0, 37, 46, 25,
+ 0, 21, 23,
+};
+const short yydgoto[] =
+ { 4,
+ 18, 19, 41, 42, 5, 31, 44, 32, 52, 6,
+ 7, 8, 9, 10, 11, 12, 13, 14, 33, 34,
+};
+const short yysindex[] =
+ { -175,
+ -227, -172, 0, 0, -10, -175, 46, 10, 0, 0,
+ 0, 0, -205, 0, 0, 0, 0, 0, 0, -175,
+ -238, -56, 53, 0, -238, -118, -228, 0, -172, 0,
+ -238, -234, -238, 0, 0, 0, 0, 0, 0, -175,
+ 0, -118, 63, -234, 66, 0, 0, -52, -238, 0,
+ -55, 0, -175, 3, 0, -175, 68, 0, -175, 0,
+ -55, 0, 4, 0, -208, -175, -219, 0, 0, 0,
+ -219, 0, 0,};
+const short yyrindex[] =
+ { 1,
+ 0, 0, 0, 0, -184, 2, 0, 5, 0, 0,
+ 0, 0, 0, -4, 0, 0, 0, 0, 0, 6,
+ -184, 0, 0, 0, 7, 12, 6, 0, 0, 0,
+ -184, 0, -184, 0, 0, 0, 0, 0, 0, -2,
+ 0, 15, 0, 0, 0, 0, 0, -215, -184, 0,
+ 0, 0, -2, 0, 0, 6, 0, 0, 6, 0,
+ 0, 0, 0, 0, -1, 6, 6, 0, 0, 0,
+ 6, 0, 0,};
+const short yygindex[] =
+ { 0,
+ 57, 0, 40, 0, 39, -17, 28, 47, 0, 9,
+ 14, 56, 0, 69, 71, 0, 0, 0, -8, -9,
+};
+#define YYTABLESIZE 277
+const short yytable[] =
+ { 20,
+ 1, 2, 25, 25, 40, 31, 25, 5, 5, 43,
+ 5, 5, 24, 35, 8, 5, 27, 46, 45, 23,
+ 2, 32, 50, 49, 40, 28, 3, 30, 27, 1,
+ 2, 28, 29, 30, 58, 57, 3, 15, 1, 2,
+ 23, 62, 30, 21, 38, 3, 38, 43, 53, 1,
+ 2, 68, 29, 54, 31, 24, 3, 72, 26, 21,
+ 22, 73, 35, 21, 65, 27, 63, 67, 25, 21,
+ 32, 21, 56, 40, 71, 59, 22, 66, 23, 12,
+ 23, 55, 1, 2, 23, 47, 48, 21, 51, 3,
+ 16, 17, 70, 36, 60, 37, 0, 0, 0, 0,
+ 0, 0, 0, 0, 61, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 31, 0, 5, 0, 0, 0, 0, 64, 69, 8,
+ 0, 27, 0, 0, 0, 0, 32, 0, 0, 40,
+ 0, 0, 0, 0, 0, 38, 39, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 28, 29, 30, 30, 0, 29, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 2, 0,
+ 0, 0, 0, 0, 3, 31, 31, 31, 24, 13,
+ 24, 12, 12, 0, 12, 12, 27, 27, 27, 12,
+ 12, 32, 32, 32, 40, 40, 40,
+};
+const short yycheck[] =
+ { 10,
+ 0, 0, 59, 59, 123, 10, 59, 10, 10, 27,
+ 10, 10, 10, 10, 10, 10, 10, 27, 27, 6,
+ 259, 10, 32, 32, 10, 260, 265, 262, 20, 258,
+ 259, 260, 261, 262, 44, 44, 265, 265, 258, 259,
+ 27, 51, 262, 5, 260, 265, 262, 65, 40, 258,
+ 259, 61, 261, 40, 59, 10, 265, 67, 264, 21,
+ 5, 71, 10, 25, 56, 59, 53, 59, 59, 31,
+ 59, 33, 10, 59, 66, 10, 21, 10, 65, 264,
+ 67, 42, 258, 259, 71, 29, 31, 49, 33, 265,
+ 263, 264, 65, 25, 48, 25, -1, -1, -1, -1,
+ -1, -1, -1, -1, 49, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ 125, -1, 125, -1, -1, -1, -1, 125, 125, 125,
+ -1, 125, -1, -1, -1, -1, 125, -1, -1, 125,
+ -1, -1, -1, -1, -1, 264, 265, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, 260, 261, 262, 262, -1, 261, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, 259, -1,
+ -1, -1, -1, -1, 265, 260, 261, 262, 260, 264,
+ 262, 264, 264, -1, 264, 264, 260, 261, 262, 264,
+ 264, 260, 261, 262, 260, 261, 262,
+};
+#define YYFINAL 4
+#ifndef YYDEBUG
+#define YYDEBUG 0
+#endif
+#define YYMAXTOKEN 265
+#if YYDEBUG
+const char * const yyname[] =
+ {
+"end-of-file",0,0,0,0,0,0,0,0,0,"'\\n'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"';'",0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,"'{'",0,"'}'",0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,"ERROR",
+"HIDDEN","IF","ELSE","ELIF","ENDIF","FORMAT","TOKEN","EQUALS",
+};
+const char * const yyrule[] =
+ {"$accept : lines",
+"lines :",
+"lines : statements",
+"statements : statement '\\n'",
+"statements : statements statement '\\n'",
+"statement :",
+"statement : hidden_assignment",
+"statement : condition",
+"statement : commands",
+"format : FORMAT",
+"format : TOKEN",
+"expanded : format",
+"optional_assignment :",
+"optional_assignment : assignment",
+"assignment : EQUALS",
+"hidden_assignment : HIDDEN EQUALS",
+"if_open : IF expanded",
+"if_else : ELSE",
+"if_elif : ELIF expanded",
+"if_close : ENDIF",
+"condition : if_open '\\n' statements if_close",
+"condition : if_open '\\n' statements if_else '\\n' statements if_close",
+"condition : if_open '\\n' statements elif if_close",
+"condition : if_open '\\n' statements elif if_else '\\n' statements if_close",
+"elif : if_elif '\\n' statements",
+"elif : if_elif '\\n' statements elif",
+"commands : command",
+"commands : commands ';'",
+"commands : commands ';' condition1",
+"commands : commands ';' command",
+"commands : condition1",
+"command : assignment",
+"command : optional_assignment TOKEN",
+"command : optional_assignment TOKEN arguments",
+"condition1 : if_open commands if_close",
+"condition1 : if_open commands if_else commands if_close",
+"condition1 : if_open commands elif1 if_close",
+"condition1 : if_open commands elif1 if_else commands if_close",
+"elif1 : if_elif commands",
+"elif1 : if_elif commands elif1",
+"arguments : argument",
+"arguments : argument arguments",
+"argument : TOKEN",
+"argument : EQUALS",
+"argument : '{' argument_statements",
+"argument_statements : statement '}'",
+"argument_statements : statements statement '}'",
+};
+#endif
+#ifdef YYSTACKSIZE
+#undef YYMAXDEPTH
+#define YYMAXDEPTH YYSTACKSIZE
+#else
+#ifdef YYMAXDEPTH
+#define YYSTACKSIZE YYMAXDEPTH
+#else
+#define YYSTACKSIZE 10000
+#define YYMAXDEPTH 10000
+#endif
+#endif
+#define YYINITSTACKSIZE 200
+/* LINTUSED */
+int yydebug;
+int yynerrs;
+int yyerrflag;
+int yychar;
+short *yyssp;
+YYSTYPE *yyvsp;
+YYSTYPE yyval;
+YYSTYPE yylval;
+short *yyss;
+short *yysslim;
+YYSTYPE *yyvs;
+unsigned int yystacksize;
+int yyparse(void);
+#line 575 "cmd-parse.y"
+
+static char *
+cmd_parse_get_error(const char *file, u_int line, const char *error)
+{
+ char *s;
+
+ if (file == NULL)
+ s = xstrdup(error);
+ else
+ xasprintf(&s, "%s:%u: %s", file, line, error);
+ return (s);
+}
+
+static void
+cmd_parse_print_commands(struct cmd_parse_input *pi, struct cmd_list *cmdlist)
+{
+ char *s;
+
+ if (pi->item == NULL || (~pi->flags & CMD_PARSE_VERBOSE))
+ return;
+ s = cmd_list_print(cmdlist, 0);
+ if (pi->file != NULL)
+ cmdq_print(pi->item, "%s:%u: %s", pi->file, pi->line, s);
+ else
+ cmdq_print(pi->item, "%u: %s", pi->line, s);
+ free(s);
+}
+
+static void
+cmd_parse_free_argument(struct cmd_parse_argument *arg)
+{
+ switch (arg->type) {
+ case CMD_PARSE_STRING:
+ free(arg->string);
+ break;
+ case CMD_PARSE_COMMANDS:
+ cmd_parse_free_commands(arg->commands);
+ break;
+ case CMD_PARSE_PARSED_COMMANDS:
+ cmd_list_free(arg->cmdlist);
+ break;
+ }
+ free(arg);
+}
+
+static void
+cmd_parse_free_arguments(struct cmd_parse_arguments *args)
+{
+ struct cmd_parse_argument *arg, *arg1;
+
+ TAILQ_FOREACH_SAFE(arg, args, entry, arg1) {
+ TAILQ_REMOVE(args, arg, entry);
+ cmd_parse_free_argument(arg);
+ }
+}
+
+static void
+cmd_parse_free_command(struct cmd_parse_command *cmd)
+{
+ cmd_parse_free_arguments(&cmd->arguments);
+ free(cmd);
+}
+
+static struct cmd_parse_commands *
+cmd_parse_new_commands(void)
+{
+ struct cmd_parse_commands *cmds;
+
+ cmds = xmalloc(sizeof *cmds);
+ TAILQ_INIT(cmds);
+ return (cmds);
+}
+
+static void
+cmd_parse_free_commands(struct cmd_parse_commands *cmds)
+{
+ struct cmd_parse_command *cmd, *cmd1;
+
+ TAILQ_FOREACH_SAFE(cmd, cmds, entry, cmd1) {
+ TAILQ_REMOVE(cmds, cmd, entry);
+ cmd_parse_free_command(cmd);
+ }
+ free(cmds);
+}
+
+static struct cmd_parse_commands *
+cmd_parse_run_parser(char **cause)
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_scope *scope, *scope1;
+ int retval;
+
+ ps->commands = NULL;
+ TAILQ_INIT(&ps->stack);
+
+ retval = yyparse();
+ TAILQ_FOREACH_SAFE(scope, &ps->stack, entry, scope1) {
+ TAILQ_REMOVE(&ps->stack, scope, entry);
+ free(scope);
+ }
+ if (retval != 0) {
+ *cause = ps->error;
+ return (NULL);
+ }
+
+ if (ps->commands == NULL)
+ return (cmd_parse_new_commands());
+ return (ps->commands);
+}
+
+static struct cmd_parse_commands *
+cmd_parse_do_file(FILE *f, struct cmd_parse_input *pi, char **cause)
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ memset(ps, 0, sizeof *ps);
+ ps->input = pi;
+ ps->f = f;
+ return (cmd_parse_run_parser(cause));
+}
+
+static struct cmd_parse_commands *
+cmd_parse_do_buffer(const char *buf, size_t len, struct cmd_parse_input *pi,
+ char **cause)
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ memset(ps, 0, sizeof *ps);
+ ps->input = pi;
+ ps->buf = buf;
+ ps->len = len;
+ return (cmd_parse_run_parser(cause));
+}
+
+static void
+cmd_parse_log_commands(struct cmd_parse_commands *cmds, const char *prefix)
+{
+ struct cmd_parse_command *cmd;
+ struct cmd_parse_argument *arg;
+ u_int i, j;
+ char *s;
+
+ i = 0;
+ TAILQ_FOREACH(cmd, cmds, entry) {
+ j = 0;
+ TAILQ_FOREACH(arg, &cmd->arguments, entry) {
+ switch (arg->type) {
+ case CMD_PARSE_STRING:
+ log_debug("%s %u:%u: %s", prefix, i, j,
+ arg->string);
+ break;
+ case CMD_PARSE_COMMANDS:
+ xasprintf(&s, "%s %u:%u", prefix, i, j);
+ cmd_parse_log_commands(arg->commands, s);
+ free(s);
+ break;
+ case CMD_PARSE_PARSED_COMMANDS:
+ s = cmd_list_print(arg->cmdlist, 0);
+ log_debug("%s %u:%u: %s", prefix, i, j, s);
+ free(s);
+ break;
+ }
+ j++;
+ }
+ i++;
+ }
+}
+
+static int
+cmd_parse_expand_alias(struct cmd_parse_command *cmd,
+ struct cmd_parse_input *pi, struct cmd_parse_result *pr)
+{
+ struct cmd_parse_argument *arg, *arg1, *first;
+ struct cmd_parse_commands *cmds;
+ struct cmd_parse_command *last;
+ char *alias, *name, *cause;
+
+ if (pi->flags & CMD_PARSE_NOALIAS)
+ return (0);
+ memset(pr, 0, sizeof *pr);
+
+ first = TAILQ_FIRST(&cmd->arguments);
+ if (first == NULL || first->type != CMD_PARSE_STRING) {
+ pr->status = CMD_PARSE_SUCCESS;
+ pr->cmdlist = cmd_list_new();
+ return (1);
+ }
+ name = first->string;
+
+ alias = cmd_get_alias(name);
+ if (alias == NULL)
+ return (0);
+ log_debug("%s: %u alias %s = %s", __func__, pi->line, name, alias);
+
+ cmds = cmd_parse_do_buffer(alias, strlen(alias), pi, &cause);
+ free(alias);
+ if (cmds == NULL) {
+ pr->status = CMD_PARSE_ERROR;
+ pr->error = cause;
+ return (1);
+ }
+
+ last = TAILQ_LAST(cmds, cmd_parse_commands);
+ if (last == NULL) {
+ pr->status = CMD_PARSE_SUCCESS;
+ pr->cmdlist = cmd_list_new();
+ return (1);
+ }
+
+ TAILQ_REMOVE(&cmd->arguments, first, entry);
+ cmd_parse_free_argument(first);
+
+ TAILQ_FOREACH_SAFE(arg, &cmd->arguments, entry, arg1) {
+ TAILQ_REMOVE(&cmd->arguments, arg, entry);
+ TAILQ_INSERT_TAIL(&last->arguments, arg, entry);
+ }
+ cmd_parse_log_commands(cmds, __func__);
+
+ pi->flags |= CMD_PARSE_NOALIAS;
+ cmd_parse_build_commands(cmds, pi, pr);
+ pi->flags &= ~CMD_PARSE_NOALIAS;
+ return (1);
+}
+
+static void
+cmd_parse_build_command(struct cmd_parse_command *cmd,
+ struct cmd_parse_input *pi, struct cmd_parse_result *pr)
+{
+ struct cmd_parse_argument *arg;
+ struct cmd *add;
+ char *cause;
+ struct args_value *values = NULL;
+ u_int count = 0, idx;
+
+ memset(pr, 0, sizeof *pr);
+
+ if (cmd_parse_expand_alias(cmd, pi, pr))
+ return;
+
+ TAILQ_FOREACH(arg, &cmd->arguments, entry) {
+ values = xrecallocarray(values, count, count + 1,
+ sizeof *values);
+ switch (arg->type) {
+ case CMD_PARSE_STRING:
+ values[count].type = ARGS_STRING;
+ values[count].string = xstrdup(arg->string);
+ break;
+ case CMD_PARSE_COMMANDS:
+ cmd_parse_build_commands(arg->commands, pi, pr);
+ if (pr->status != CMD_PARSE_SUCCESS)
+ goto out;
+ values[count].type = ARGS_COMMANDS;
+ values[count].cmdlist = pr->cmdlist;
+ break;
+ case CMD_PARSE_PARSED_COMMANDS:
+ values[count].type = ARGS_COMMANDS;
+ values[count].cmdlist = arg->cmdlist;
+ values[count].cmdlist->references++;
+ break;
+ }
+ count++;
+ }
+
+ add = cmd_parse(values, count, pi->file, pi->line, &cause);
+ if (add == NULL) {
+ pr->status = CMD_PARSE_ERROR;
+ pr->error = cmd_parse_get_error(pi->file, pi->line, cause);
+ free(cause);
+ goto out;
+ }
+ pr->status = CMD_PARSE_SUCCESS;
+ pr->cmdlist = cmd_list_new();
+ cmd_list_append(pr->cmdlist, add);
+
+out:
+ for (idx = 0; idx < count; idx++)
+ args_free_value(&values[idx]);
+ free(values);
+}
+
+static void
+cmd_parse_build_commands(struct cmd_parse_commands *cmds,
+ struct cmd_parse_input *pi, struct cmd_parse_result *pr)
+{
+ struct cmd_parse_command *cmd;
+ u_int line = UINT_MAX;
+ struct cmd_list *current = NULL, *result;
+ char *s;
+
+ memset(pr, 0, sizeof *pr);
+
+ /* Check for an empty list. */
+ if (TAILQ_EMPTY(cmds)) {
+ pr->status = CMD_PARSE_SUCCESS;
+ pr->cmdlist = cmd_list_new();
+ return;
+ }
+ cmd_parse_log_commands(cmds, __func__);
+
+ /*
+ * Parse each command into a command list. Create a new command list
+ * for each line (unless the flag is set) so they get a new group (so
+ * the queue knows which ones to remove if a command fails when
+ * executed).
+ */
+ result = cmd_list_new();
+ TAILQ_FOREACH(cmd, cmds, entry) {
+ if (((~pi->flags & CMD_PARSE_ONEGROUP) && cmd->line != line)) {
+ if (current != NULL) {
+ cmd_parse_print_commands(pi, current);
+ cmd_list_move(result, current);
+ cmd_list_free(current);
+ }
+ current = cmd_list_new();
+ }
+ if (current == NULL)
+ current = cmd_list_new();
+ line = pi->line = cmd->line;
+
+ cmd_parse_build_command(cmd, pi, pr);
+ if (pr->status != CMD_PARSE_SUCCESS) {
+ cmd_list_free(result);
+ cmd_list_free(current);
+ return;
+ }
+ cmd_list_append_all(current, pr->cmdlist);
+ cmd_list_free(pr->cmdlist);
+ }
+ if (current != NULL) {
+ cmd_parse_print_commands(pi, current);
+ cmd_list_move(result, current);
+ cmd_list_free(current);
+ }
+
+ s = cmd_list_print(result, 0);
+ log_debug("%s: %s", __func__, s);
+ free(s);
+
+ pr->status = CMD_PARSE_SUCCESS;
+ pr->cmdlist = result;
+}
+
+struct cmd_parse_result *
+cmd_parse_from_file(FILE *f, struct cmd_parse_input *pi)
+{
+ static struct cmd_parse_result pr;
+ struct cmd_parse_input input;
+ struct cmd_parse_commands *cmds;
+ char *cause;
+
+ if (pi == NULL) {
+ memset(&input, 0, sizeof input);
+ pi = &input;
+ }
+ memset(&pr, 0, sizeof pr);
+
+ cmds = cmd_parse_do_file(f, pi, &cause);
+ if (cmds == NULL) {
+ pr.status = CMD_PARSE_ERROR;
+ pr.error = cause;
+ return (&pr);
+ }
+ cmd_parse_build_commands(cmds, pi, &pr);
+ cmd_parse_free_commands(cmds);
+ return (&pr);
+
+}
+
+struct cmd_parse_result *
+cmd_parse_from_string(const char *s, struct cmd_parse_input *pi)
+{
+ struct cmd_parse_input input;
+
+ if (pi == NULL) {
+ memset(&input, 0, sizeof input);
+ pi = &input;
+ }
+
+ /*
+ * When parsing a string, put commands in one group even if there are
+ * multiple lines. This means { a \n b } is identical to "a ; b" when
+ * given as an argument to another command.
+ */
+ pi->flags |= CMD_PARSE_ONEGROUP;
+ return (cmd_parse_from_buffer(s, strlen(s), pi));
+}
+
+enum cmd_parse_status
+cmd_parse_and_insert(const char *s, struct cmd_parse_input *pi,
+ struct cmdq_item *after, struct cmdq_state *state, char **error)
+{
+ struct cmd_parse_result *pr;
+ struct cmdq_item *item;
+
+ pr = cmd_parse_from_string(s, pi);
+ switch (pr->status) {
+ case CMD_PARSE_ERROR:
+ if (error != NULL)
+ *error = pr->error;
+ else
+ free(pr->error);
+ break;
+ case CMD_PARSE_SUCCESS:
+ item = cmdq_get_command(pr->cmdlist, state);
+ cmdq_insert_after(after, item);
+ cmd_list_free(pr->cmdlist);
+ break;
+ }
+ return (pr->status);
+}
+
+enum cmd_parse_status
+cmd_parse_and_append(const char *s, struct cmd_parse_input *pi,
+ struct client *c, struct cmdq_state *state, char **error)
+{
+ struct cmd_parse_result *pr;
+ struct cmdq_item *item;
+
+ pr = cmd_parse_from_string(s, pi);
+ switch (pr->status) {
+ case CMD_PARSE_ERROR:
+ if (error != NULL)
+ *error = pr->error;
+ else
+ free(pr->error);
+ break;
+ case CMD_PARSE_SUCCESS:
+ item = cmdq_get_command(pr->cmdlist, state);
+ cmdq_append(c, item);
+ cmd_list_free(pr->cmdlist);
+ break;
+ }
+ return (pr->status);
+}
+
+struct cmd_parse_result *
+cmd_parse_from_buffer(const void *buf, size_t len, struct cmd_parse_input *pi)
+{
+ static struct cmd_parse_result pr;
+ struct cmd_parse_input input;
+ struct cmd_parse_commands *cmds;
+ char *cause;
+
+ if (pi == NULL) {
+ memset(&input, 0, sizeof input);
+ pi = &input;
+ }
+ memset(&pr, 0, sizeof pr);
+
+ if (len == 0) {
+ pr.status = CMD_PARSE_SUCCESS;
+ pr.cmdlist = cmd_list_new();
+ return (&pr);
+ }
+
+ cmds = cmd_parse_do_buffer(buf, len, pi, &cause);
+ if (cmds == NULL) {
+ pr.status = CMD_PARSE_ERROR;
+ pr.error = cause;
+ return (&pr);
+ }
+ cmd_parse_build_commands(cmds, pi, &pr);
+ cmd_parse_free_commands(cmds);
+ return (&pr);
+}
+
+struct cmd_parse_result *
+cmd_parse_from_arguments(struct args_value *values, u_int count,
+ struct cmd_parse_input *pi)
+{
+ static struct cmd_parse_result pr;
+ struct cmd_parse_input input;
+ struct cmd_parse_commands *cmds;
+ struct cmd_parse_command *cmd;
+ struct cmd_parse_argument *arg;
+ u_int i;
+ char *copy;
+ size_t size;
+ int end;
+
+ /*
+ * The commands are already split up into arguments, so just separate
+ * into a set of commands by ';'.
+ */
+
+ if (pi == NULL) {
+ memset(&input, 0, sizeof input);
+ pi = &input;
+ }
+ memset(&pr, 0, sizeof pr);
+
+ cmds = cmd_parse_new_commands();
+
+ cmd = xcalloc(1, sizeof *cmd);
+ cmd->line = pi->line;
+ TAILQ_INIT(&cmd->arguments);
+
+ for (i = 0; i < count; i++) {
+ end = 0;
+ if (values[i].type == ARGS_STRING) {
+ copy = xstrdup(values[i].string);
+ size = strlen(copy);
+ if (size != 0 && copy[size - 1] == ';') {
+ copy[--size] = '\0';
+ if (size > 0 && copy[size - 1] == '\\')
+ copy[size - 1] = ';';
+ else
+ end = 1;
+ }
+ if (!end || size != 0) {
+ arg = xcalloc(1, sizeof *arg);
+ arg->type = CMD_PARSE_STRING;
+ arg->string = copy;
+ TAILQ_INSERT_TAIL(&cmd->arguments, arg, entry);
+ }
+ } else if (values[i].type == ARGS_COMMANDS) {
+ arg = xcalloc(1, sizeof *arg);
+ arg->type = CMD_PARSE_PARSED_COMMANDS;
+ arg->cmdlist = values[i].cmdlist;
+ arg->cmdlist->references++;
+ TAILQ_INSERT_TAIL(&cmd->arguments, arg, entry);
+ } else
+ fatalx("unknown argument type");
+ if (end) {
+ TAILQ_INSERT_TAIL(cmds, cmd, entry);
+ cmd = xcalloc(1, sizeof *cmd);
+ cmd->line = pi->line;
+ TAILQ_INIT(&cmd->arguments);
+ }
+ }
+ if (!TAILQ_EMPTY(&cmd->arguments))
+ TAILQ_INSERT_TAIL(cmds, cmd, entry);
+ else
+ free(cmd);
+
+ cmd_parse_build_commands(cmds, pi, &pr);
+ cmd_parse_free_commands(cmds);
+ return (&pr);
+}
+
+static int printflike(1, 2)
+yyerror(const char *fmt, ...)
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_input *pi = ps->input;
+ va_list ap;
+ char *error;
+
+ if (ps->error != NULL)
+ return (0);
+
+ va_start(ap, fmt);
+ xvasprintf(&error, fmt, ap);
+ va_end(ap);
+
+ ps->error = cmd_parse_get_error(pi->file, pi->line, error);
+ free(error);
+ return (0);
+}
+
+static int
+yylex_is_var(char ch, int first)
+{
+ if (ch == '=')
+ return (0);
+ if (first && isdigit((u_char)ch))
+ return (0);
+ return (isalnum((u_char)ch) || ch == '_');
+}
+
+static void
+yylex_append(char **buf, size_t *len, const char *add, size_t addlen)
+{
+ if (addlen > SIZE_MAX - 1 || *len > SIZE_MAX - 1 - addlen)
+ fatalx("buffer is too big");
+ *buf = xrealloc(*buf, (*len) + 1 + addlen);
+ memcpy((*buf) + *len, add, addlen);
+ (*len) += addlen;
+}
+
+static void
+yylex_append1(char **buf, size_t *len, char add)
+{
+ yylex_append(buf, len, &add, 1);
+}
+
+static int
+yylex_getc1(void)
+{
+ struct cmd_parse_state *ps = &parse_state;
+ int ch;
+
+ if (ps->f != NULL)
+ ch = getc(ps->f);
+ else {
+ if (ps->off == ps->len)
+ ch = EOF;
+ else
+ ch = ps->buf[ps->off++];
+ }
+ return (ch);
+}
+
+static void
+yylex_ungetc(int ch)
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ if (ps->f != NULL)
+ ungetc(ch, ps->f);
+ else if (ps->off > 0 && ch != EOF)
+ ps->off--;
+}
+
+static int
+yylex_getc(void)
+{
+ struct cmd_parse_state *ps = &parse_state;
+ int ch;
+
+ if (ps->escapes != 0) {
+ ps->escapes--;
+ return ('\\');
+ }
+ for (;;) {
+ ch = yylex_getc1();
+ if (ch == '\\') {
+ ps->escapes++;
+ continue;
+ }
+ if (ch == '\n' && (ps->escapes % 2) == 1) {
+ ps->input->line++;
+ ps->escapes--;
+ continue;
+ }
+
+ if (ps->escapes != 0) {
+ yylex_ungetc(ch);
+ ps->escapes--;
+ return ('\\');
+ }
+ return (ch);
+ }
+}
+
+static char *
+yylex_get_word(int ch)
+{
+ char *buf;
+ size_t len;
+
+ len = 0;
+ buf = xmalloc(1);
+
+ do
+ yylex_append1(&buf, &len, ch);
+ while ((ch = yylex_getc()) != EOF && strchr(" \t\n", ch) == NULL);
+ yylex_ungetc(ch);
+
+ buf[len] = '\0';
+ log_debug("%s: %s", __func__, buf);
+ return (buf);
+}
+
+static int
+yylex(void)
+{
+ struct cmd_parse_state *ps = &parse_state;
+ char *token, *cp;
+ int ch, next, condition;
+
+ if (ps->eol)
+ ps->input->line++;
+ ps->eol = 0;
+
+ condition = ps->condition;
+ ps->condition = 0;
+
+ for (;;) {
+ ch = yylex_getc();
+
+ if (ch == EOF) {
+ /*
+ * Ensure every file or string is terminated by a
+ * newline. This keeps the parser simpler and avoids
+ * having to add a newline to each string.
+ */
+ if (ps->eof)
+ break;
+ ps->eof = 1;
+ return ('\n');
+ }
+
+ if (ch == ' ' || ch == '\t') {
+ /*
+ * Ignore whitespace.
+ */
+ continue;
+ }
+
+ if (ch == '\n') {
+ /*
+ * End of line. Update the line number.
+ */
+ ps->eol = 1;
+ return ('\n');
+ }
+
+ if (ch == ';' || ch == '{' || ch == '}') {
+ /*
+ * A semicolon or { or } is itself.
+ */
+ return (ch);
+ }
+
+ if (ch == '#') {
+ /*
+ * #{ after a condition opens a format; anything else
+ * is a comment, ignore up to the end of the line.
+ */
+ next = yylex_getc();
+ if (condition && next == '{') {
+ yylval.token = yylex_format();
+ if (yylval.token == NULL)
+ return (ERROR);
+ return (FORMAT);
+ }
+ while (next != '\n' && next != EOF)
+ next = yylex_getc();
+ if (next == '\n') {
+ ps->input->line++;
+ return ('\n');
+ }
+ continue;
+ }
+
+ if (ch == '%') {
+ /*
+ * % is a condition unless it is all % or all numbers,
+ * then it is a token.
+ */
+ yylval.token = yylex_get_word('%');
+ for (cp = yylval.token; *cp != '\0'; cp++) {
+ if (*cp != '%' && !isdigit((u_char)*cp))
+ break;
+ }
+ if (*cp == '\0')
+ return (TOKEN);
+ ps->condition = 1;
+ if (strcmp(yylval.token, "%hidden") == 0) {
+ free(yylval.token);
+ return (HIDDEN);
+ }
+ if (strcmp(yylval.token, "%if") == 0) {
+ free(yylval.token);
+ return (IF);
+ }
+ if (strcmp(yylval.token, "%else") == 0) {
+ free(yylval.token);
+ return (ELSE);
+ }
+ if (strcmp(yylval.token, "%elif") == 0) {
+ free(yylval.token);
+ return (ELIF);
+ }
+ if (strcmp(yylval.token, "%endif") == 0) {
+ free(yylval.token);
+ return (ENDIF);
+ }
+ free(yylval.token);
+ return (ERROR);
+ }
+
+ /*
+ * Otherwise this is a token.
+ */
+ token = yylex_token(ch);
+ if (token == NULL)
+ return (ERROR);
+ yylval.token = token;
+
+ if (strchr(token, '=') != NULL && yylex_is_var(*token, 1)) {
+ for (cp = token + 1; *cp != '='; cp++) {
+ if (!yylex_is_var(*cp, 0))
+ break;
+ }
+ if (*cp == '=')
+ return (EQUALS);
+ }
+ return (TOKEN);
+ }
+ return (0);
+}
+
+static char *
+yylex_format(void)
+{
+ char *buf;
+ size_t len;
+ int ch, brackets = 1;
+
+ len = 0;
+ buf = xmalloc(1);
+
+ yylex_append(&buf, &len, "#{", 2);
+ for (;;) {
+ if ((ch = yylex_getc()) == EOF || ch == '\n')
+ goto error;
+ if (ch == '#') {
+ if ((ch = yylex_getc()) == EOF || ch == '\n')
+ goto error;
+ if (ch == '{')
+ brackets++;
+ yylex_append1(&buf, &len, '#');
+ } else if (ch == '}') {
+ if (brackets != 0 && --brackets == 0) {
+ yylex_append1(&buf, &len, ch);
+ break;
+ }
+ }
+ yylex_append1(&buf, &len, ch);
+ }
+ if (brackets != 0)
+ goto error;
+
+ buf[len] = '\0';
+ log_debug("%s: %s", __func__, buf);
+ return (buf);
+
+error:
+ free(buf);
+ return (NULL);
+}
+
+static int
+yylex_token_escape(char **buf, size_t *len)
+{
+ int ch, type, o2, o3, mlen;
+ u_int size, i, tmp;
+ char s[9], m[MB_LEN_MAX];
+
+ ch = yylex_getc();
+
+ if (ch >= '4' && ch <= '7') {
+ yyerror("invalid octal escape");
+ return (0);
+ }
+ if (ch >= '0' && ch <= '3') {
+ o2 = yylex_getc();
+ if (o2 >= '0' && o2 <= '7') {
+ o3 = yylex_getc();
+ if (o3 >= '0' && o3 <= '7') {
+ ch = 64 * (ch - '0') +
+ 8 * (o2 - '0') +
+ (o3 - '0');
+ yylex_append1(buf, len, ch);
+ return (1);
+ }
+ }
+ yyerror("invalid octal escape");
+ return (0);
+ }
+
+ switch (ch) {
+ case EOF:
+ return (0);
+ case 'a':
+ ch = '\a';
+ break;
+ case 'b':
+ ch = '\b';
+ break;
+ case 'e':
+ ch = '\033';
+ break;
+ case 'f':
+ ch = '\f';
+ break;
+ case 's':
+ ch = ' ';
+ break;
+ case 'v':
+ ch = '\v';
+ break;
+ case 'r':
+ ch = '\r';
+ break;
+ case 'n':
+ ch = '\n';
+ break;
+ case 't':
+ ch = '\t';
+ break;
+ case 'u':
+ type = 'u';
+ size = 4;
+ goto unicode;
+ case 'U':
+ type = 'U';
+ size = 8;
+ goto unicode;
+ }
+
+ yylex_append1(buf, len, ch);
+ return (1);
+
+unicode:
+ for (i = 0; i < size; i++) {
+ ch = yylex_getc();
+ if (ch == EOF || ch == '\n')
+ return (0);
+ if (!isxdigit((u_char)ch)) {
+ yyerror("invalid \\%c argument", type);
+ return (0);
+ }
+ s[i] = ch;
+ }
+ s[i] = '\0';
+
+ if ((size == 4 && sscanf(s, "%4x", &tmp) != 1) ||
+ (size == 8 && sscanf(s, "%8x", &tmp) != 1)) {
+ yyerror("invalid \\%c argument", type);
+ return (0);
+ }
+ mlen = wctomb(m, tmp);
+ if (mlen <= 0 || mlen > (int)sizeof m) {
+ yyerror("invalid \\%c argument", type);
+ return (0);
+ }
+ yylex_append(buf, len, m, mlen);
+ return (1);
+}
+
+static int
+yylex_token_variable(char **buf, size_t *len)
+{
+ struct environ_entry *envent;
+ int ch, brackets = 0;
+ char name[1024];
+ size_t namelen = 0;
+ const char *value;
+
+ ch = yylex_getc();
+ if (ch == EOF)
+ return (0);
+ if (ch == '{')
+ brackets = 1;
+ else {
+ if (!yylex_is_var(ch, 1)) {
+ yylex_append1(buf, len, '$');
+ yylex_ungetc(ch);
+ return (1);
+ }
+ name[namelen++] = ch;
+ }
+
+ for (;;) {
+ ch = yylex_getc();
+ if (brackets && ch == '}')
+ break;
+ if (ch == EOF || !yylex_is_var(ch, 0)) {
+ if (!brackets) {
+ yylex_ungetc(ch);
+ break;
+ }
+ yyerror("invalid environment variable");
+ return (0);
+ }
+ if (namelen == (sizeof name) - 2) {
+ yyerror("environment variable is too long");
+ return (0);
+ }
+ name[namelen++] = ch;
+ }
+ name[namelen] = '\0';
+
+ envent = environ_find(global_environ, name);
+ if (envent != NULL && envent->value != NULL) {
+ value = envent->value;
+ log_debug("%s: %s -> %s", __func__, name, value);
+ yylex_append(buf, len, value, strlen(value));
+ }
+ return (1);
+}
+
+static int
+yylex_token_tilde(char **buf, size_t *len)
+{
+ struct environ_entry *envent;
+ int ch;
+ char name[1024];
+ size_t namelen = 0;
+ struct passwd *pw;
+ const char *home = NULL;
+
+ for (;;) {
+ ch = yylex_getc();
+ if (ch == EOF || strchr("/ \t\n\"'", ch) != NULL) {
+ yylex_ungetc(ch);
+ break;
+ }
+ if (namelen == (sizeof name) - 2) {
+ yyerror("user name is too long");
+ return (0);
+ }
+ name[namelen++] = ch;
+ }
+ name[namelen] = '\0';
+
+ if (*name == '\0') {
+ envent = environ_find(global_environ, "HOME");
+ if (envent != NULL && *envent->value != '\0')
+ home = envent->value;
+ else if ((pw = getpwuid(getuid())) != NULL)
+ home = pw->pw_dir;
+ } else {
+ if ((pw = getpwnam(name)) != NULL)
+ home = pw->pw_dir;
+ }
+ if (home == NULL)
+ return (0);
+
+ log_debug("%s: ~%s -> %s", __func__, name, home);
+ yylex_append(buf, len, home, strlen(home));
+ return (1);
+}
+
+static char *
+yylex_token(int ch)
+{
+ char *buf;
+ size_t len;
+ enum { START,
+ NONE,
+ DOUBLE_QUOTES,
+ SINGLE_QUOTES } state = NONE, last = START;
+
+ len = 0;
+ buf = xmalloc(1);
+
+ for (;;) {
+ /* EOF or \n are always the end of the token. */
+ if (ch == EOF || (state == NONE && ch == '\n'))
+ break;
+
+ /* Whitespace or ; or } ends a token unless inside quotes. */
+ if ((ch == ' ' || ch == '\t' || ch == ';' || ch == '}') &&
+ state == NONE)
+ break;
+
+ /*
+ * Spaces and comments inside quotes after \n are removed but
+ * the \n is left.
+ */
+ if (ch == '\n' && state != NONE) {
+ yylex_append1(&buf, &len, '\n');
+ while ((ch = yylex_getc()) == ' ' || ch == '\t')
+ /* nothing */;
+ if (ch != '#')
+ continue;
+ ch = yylex_getc();
+ if (strchr(",#{}:", ch) != NULL) {
+ yylex_ungetc(ch);
+ ch = '#';
+ } else {
+ while ((ch = yylex_getc()) != '\n' && ch != EOF)
+ /* nothing */;
+ }
+ continue;
+ }
+
+ /* \ ~ and $ are expanded except in single quotes. */
+ if (ch == '\\' && state != SINGLE_QUOTES) {
+ if (!yylex_token_escape(&buf, &len))
+ goto error;
+ goto skip;
+ }
+ if (ch == '~' && last != state && state != SINGLE_QUOTES) {
+ if (!yylex_token_tilde(&buf, &len))
+ goto error;
+ goto skip;
+ }
+ if (ch == '$' && state != SINGLE_QUOTES) {
+ if (!yylex_token_variable(&buf, &len))
+ goto error;
+ goto skip;
+ }
+ if (ch == '}' && state == NONE)
+ goto error; /* unmatched (matched ones were handled) */
+
+ /* ' and " starts or end quotes (and is consumed). */
+ if (ch == '\'') {
+ if (state == NONE) {
+ state = SINGLE_QUOTES;
+ goto next;
+ }
+ if (state == SINGLE_QUOTES) {
+ state = NONE;
+ goto next;
+ }
+ }
+ if (ch == '"') {
+ if (state == NONE) {
+ state = DOUBLE_QUOTES;
+ goto next;
+ }
+ if (state == DOUBLE_QUOTES) {
+ state = NONE;
+ goto next;
+ }
+ }
+
+ /* Otherwise add the character to the buffer. */
+ yylex_append1(&buf, &len, ch);
+
+ skip:
+ last = state;
+
+ next:
+ ch = yylex_getc();
+ }
+ yylex_ungetc(ch);
+
+ buf[len] = '\0';
+ log_debug("%s: %s", __func__, buf);
+ return (buf);
+
+error:
+ free(buf);
+ return (NULL);
+}
+#line 1458 "cmd-parse.c"
+/* allocate initial stack or double stack size, up to YYMAXDEPTH */
+static int yygrowstack(void)
+{
+ unsigned int newsize;
+ long sslen;
+ short *newss;
+ YYSTYPE *newvs;
+
+ if ((newsize = yystacksize) == 0)
+ newsize = YYINITSTACKSIZE;
+ else if (newsize >= YYMAXDEPTH)
+ return -1;
+ else if ((newsize *= 2) > YYMAXDEPTH)
+ newsize = YYMAXDEPTH;
+ sslen = yyssp - yyss;
+#ifdef SIZE_MAX
+#define YY_SIZE_MAX SIZE_MAX
+#else
+#define YY_SIZE_MAX 0xffffffffU
+#endif
+ if (newsize && YY_SIZE_MAX / newsize < sizeof *newss)
+ goto bail;
+ newss = (short *)realloc(yyss, newsize * sizeof *newss);
+ if (newss == NULL)
+ goto bail;
+ yyss = newss;
+ yyssp = newss + sslen;
+ if (newsize && YY_SIZE_MAX / newsize < sizeof *newvs)
+ goto bail;
+ newvs = (YYSTYPE *)realloc(yyvs, newsize * sizeof *newvs);
+ if (newvs == NULL)
+ goto bail;
+ yyvs = newvs;
+ yyvsp = newvs + sslen;
+ yystacksize = newsize;
+ yysslim = yyss + newsize - 1;
+ return 0;
+bail:
+ if (yyss)
+ free(yyss);
+ if (yyvs)
+ free(yyvs);
+ yyss = yyssp = NULL;
+ yyvs = yyvsp = NULL;
+ yystacksize = 0;
+ return -1;
+}
+
+#define YYABORT goto yyabort
+#define YYREJECT goto yyabort
+#define YYACCEPT goto yyaccept
+#define YYERROR goto yyerrlab
+int
+yyparse(void)
+{
+ int yym, yyn, yystate;
+#if YYDEBUG
+ const char *yys;
+
+ if ((yys = getenv("YYDEBUG")))
+ {
+ yyn = *yys;
+ if (yyn >= '0' && yyn <= '9')
+ yydebug = yyn - '0';
+ }
+#endif /* YYDEBUG */
+
+ yynerrs = 0;
+ yyerrflag = 0;
+ yychar = (-1);
+
+ if (yyss == NULL && yygrowstack()) goto yyoverflow;
+ yyssp = yyss;
+ yyvsp = yyvs;
+ *yyssp = yystate = 0;
+
+yyloop:
+ if ((yyn = yydefred[yystate]) != 0) goto yyreduce;
+ if (yychar < 0)
+ {
+ if ((yychar = yylex()) < 0) yychar = 0;
+#if YYDEBUG
+ if (yydebug)
+ {
+ yys = 0;
+ if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
+ if (!yys) yys = "illegal-symbol";
+ printf("%sdebug: state %d, reading %d (%s)\n",
+ YYPREFIX, yystate, yychar, yys);
+ }
+#endif
+ }
+ if ((yyn = yysindex[yystate]) && (yyn += yychar) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, shifting to state %d\n",
+ YYPREFIX, yystate, yytable[yyn]);
+#endif
+ if (yyssp >= yysslim && yygrowstack())
+ {
+ goto yyoverflow;
+ }
+ *++yyssp = yystate = yytable[yyn];
+ *++yyvsp = yylval;
+ yychar = (-1);
+ if (yyerrflag > 0) --yyerrflag;
+ goto yyloop;
+ }
+ if ((yyn = yyrindex[yystate]) && (yyn += yychar) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == yychar)
+ {
+ yyn = yytable[yyn];
+ goto yyreduce;
+ }
+ if (yyerrflag) goto yyinrecovery;
+#if defined(__GNUC__)
+ goto yynewerror;
+#endif
+yynewerror:
+ yyerror("syntax error");
+#if defined(__GNUC__)
+ goto yyerrlab;
+#endif
+yyerrlab:
+ ++yynerrs;
+yyinrecovery:
+ if (yyerrflag < 3)
+ {
+ yyerrflag = 3;
+ for (;;)
+ {
+ if ((yyn = yysindex[*yyssp]) && (yyn += YYERRCODE) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == YYERRCODE)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, error recovery shifting\
+ to state %d\n", YYPREFIX, *yyssp, yytable[yyn]);
+#endif
+ if (yyssp >= yysslim && yygrowstack())
+ {
+ goto yyoverflow;
+ }
+ *++yyssp = yystate = yytable[yyn];
+ *++yyvsp = yylval;
+ goto yyloop;
+ }
+ else
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: error recovery discarding state %d\n",
+ YYPREFIX, *yyssp);
+#endif
+ if (yyssp <= yyss) goto yyabort;
+ --yyssp;
+ --yyvsp;
+ }
+ }
+ }
+ else
+ {
+ if (yychar == 0) goto yyabort;
+#if YYDEBUG
+ if (yydebug)
+ {
+ yys = 0;
+ if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
+ if (!yys) yys = "illegal-symbol";
+ printf("%sdebug: state %d, error recovery discards token %d (%s)\n",
+ YYPREFIX, yystate, yychar, yys);
+ }
+#endif
+ yychar = (-1);
+ goto yyloop;
+ }
+yyreduce:
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: state %d, reducing by rule %d (%s)\n",
+ YYPREFIX, yystate, yyn, yyrule[yyn]);
+#endif
+ yym = yylen[yyn];
+ if (yym)
+ yyval = yyvsp[1-yym];
+ else
+ memset(&yyval, 0, sizeof yyval);
+ switch (yyn)
+ {
+case 2:
+#line 136 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ ps->commands = yyvsp[0].commands;
+ }
+break;
+case 3:
+#line 143 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-1].commands;
+ }
+break;
+case 4:
+#line 147 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-2].commands;
+ TAILQ_CONCAT(yyval.commands, yyvsp[-1].commands, entry);
+ free(yyvsp[-1].commands);
+ }
+break;
+case 5:
+#line 154 "cmd-parse.y"
+{
+ yyval.commands = xmalloc (sizeof *yyval.commands);
+ TAILQ_INIT(yyval.commands);
+ }
+break;
+case 6:
+#line 159 "cmd-parse.y"
+{
+ yyval.commands = xmalloc (sizeof *yyval.commands);
+ TAILQ_INIT(yyval.commands);
+ }
+break;
+case 7:
+#line 164 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ if (ps->scope == NULL || ps->scope->flag)
+ yyval.commands = yyvsp[0].commands;
+ else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[0].commands);
+ }
+ }
+break;
+case 8:
+#line 175 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ if (ps->scope == NULL || ps->scope->flag)
+ yyval.commands = yyvsp[0].commands;
+ else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[0].commands);
+ }
+ }
+break;
+case 9:
+#line 187 "cmd-parse.y"
+{
+ yyval.token = yyvsp[0].token;
+ }
+break;
+case 10:
+#line 191 "cmd-parse.y"
+{
+ yyval.token = yyvsp[0].token;
+ }
+break;
+case 11:
+#line 196 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_input *pi = ps->input;
+ struct format_tree *ft;
+ struct client *c = pi->c;
+ struct cmd_find_state *fsp;
+ struct cmd_find_state fs;
+ int flags = FORMAT_NOJOBS;
+
+ if (cmd_find_valid_state(&pi->fs))
+ fsp = &pi->fs;
+ else {
+ cmd_find_from_client(&fs, c, 0);
+ fsp = &fs;
+ }
+ ft = format_create(NULL, pi->item, FORMAT_NONE, flags);
+ format_defaults(ft, c, fsp->s, fsp->wl, fsp->wp);
+
+ yyval.token = format_expand(ft, yyvsp[0].token);
+ format_free(ft);
+ free(yyvsp[0].token);
+ }
+break;
+case 14:
+#line 223 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ int flags = ps->input->flags;
+
+ if ((~flags & CMD_PARSE_PARSEONLY) &&
+ (ps->scope == NULL || ps->scope->flag))
+ environ_put(global_environ, yyvsp[0].token, 0);
+ free(yyvsp[0].token);
+ }
+break;
+case 15:
+#line 234 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ int flags = ps->input->flags;
+
+ if ((~flags & CMD_PARSE_PARSEONLY) &&
+ (ps->scope == NULL || ps->scope->flag))
+ environ_put(global_environ, yyvsp[0].token, ENVIRON_HIDDEN);
+ free(yyvsp[0].token);
+ }
+break;
+case 16:
+#line 245 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_scope *scope;
+
+ scope = xmalloc(sizeof *scope);
+ yyval.flag = scope->flag = format_true(yyvsp[0].token);
+ free(yyvsp[0].token);
+
+ if (ps->scope != NULL)
+ TAILQ_INSERT_HEAD(&ps->stack, ps->scope, entry);
+ ps->scope = scope;
+ }
+break;
+case 17:
+#line 259 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_scope *scope;
+
+ scope = xmalloc(sizeof *scope);
+ scope->flag = !ps->scope->flag;
+
+ free(ps->scope);
+ ps->scope = scope;
+ }
+break;
+case 18:
+#line 271 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_scope *scope;
+
+ scope = xmalloc(sizeof *scope);
+ yyval.flag = scope->flag = format_true(yyvsp[0].token);
+ free(yyvsp[0].token);
+
+ free(ps->scope);
+ ps->scope = scope;
+ }
+break;
+case 19:
+#line 284 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ free(ps->scope);
+ ps->scope = TAILQ_FIRST(&ps->stack);
+ if (ps->scope != NULL)
+ TAILQ_REMOVE(&ps->stack, ps->scope, entry);
+ }
+break;
+case 20:
+#line 294 "cmd-parse.y"
+{
+ if (yyvsp[-3].flag)
+ yyval.commands = yyvsp[-1].commands;
+ else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ }
+ }
+break;
+case 21:
+#line 303 "cmd-parse.y"
+{
+ if (yyvsp[-6].flag) {
+ yyval.commands = yyvsp[-4].commands;
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[-4].commands);
+ }
+ }
+break;
+case 22:
+#line 313 "cmd-parse.y"
+{
+ if (yyvsp[-4].flag) {
+ yyval.commands = yyvsp[-2].commands;
+ cmd_parse_free_commands(yyvsp[-1].elif.commands);
+ } else if (yyvsp[-1].elif.flag) {
+ yyval.commands = yyvsp[-1].elif.commands;
+ cmd_parse_free_commands(yyvsp[-2].commands);
+ } else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-2].commands);
+ cmd_parse_free_commands(yyvsp[-1].elif.commands);
+ }
+ }
+break;
+case 23:
+#line 327 "cmd-parse.y"
+{
+ if (yyvsp[-7].flag) {
+ yyval.commands = yyvsp[-5].commands;
+ cmd_parse_free_commands(yyvsp[-4].elif.commands);
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else if (yyvsp[-4].elif.flag) {
+ yyval.commands = yyvsp[-4].elif.commands;
+ cmd_parse_free_commands(yyvsp[-5].commands);
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[-5].commands);
+ cmd_parse_free_commands(yyvsp[-4].elif.commands);
+ }
+ }
+break;
+case 24:
+#line 344 "cmd-parse.y"
+{
+ if (yyvsp[-2].flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[0].commands;
+ } else {
+ yyval.elif.flag = 0;
+ yyval.elif.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[0].commands);
+ }
+ }
+break;
+case 25:
+#line 355 "cmd-parse.y"
+{
+ if (yyvsp[-3].flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[0].elif.commands);
+ } else if (yyvsp[0].elif.flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[0].elif.commands;
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.elif.flag = 0;
+ yyval.elif.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ cmd_parse_free_commands(yyvsp[0].elif.commands);
+ }
+ }
+break;
+case 26:
+#line 373 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ yyval.commands = cmd_parse_new_commands();
+ if (!TAILQ_EMPTY(&yyvsp[0].command->arguments) &&
+ (ps->scope == NULL || ps->scope->flag))
+ TAILQ_INSERT_TAIL(yyval.commands, yyvsp[0].command, entry);
+ else
+ cmd_parse_free_command(yyvsp[0].command);
+ }
+break;
+case 27:
+#line 384 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-1].commands;
+ }
+break;
+case 28:
+#line 388 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-2].commands;
+ TAILQ_CONCAT(yyval.commands, yyvsp[0].commands, entry);
+ free(yyvsp[0].commands);
+ }
+break;
+case 29:
+#line 394 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ if (!TAILQ_EMPTY(&yyvsp[0].command->arguments) &&
+ (ps->scope == NULL || ps->scope->flag)) {
+ yyval.commands = yyvsp[-2].commands;
+ TAILQ_INSERT_TAIL(yyval.commands, yyvsp[0].command, entry);
+ } else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-2].commands);
+ cmd_parse_free_command(yyvsp[0].command);
+ }
+ }
+break;
+case 30:
+#line 408 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[0].commands;
+ }
+break;
+case 31:
+#line 413 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+
+ yyval.command = xcalloc(1, sizeof *yyval.command);
+ yyval.command->line = ps->input->line;
+ TAILQ_INIT(&yyval.command->arguments);
+ }
+break;
+case 32:
+#line 421 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_argument *arg;
+
+ yyval.command = xcalloc(1, sizeof *yyval.command);
+ yyval.command->line = ps->input->line;
+ TAILQ_INIT(&yyval.command->arguments);
+
+ arg = xcalloc(1, sizeof *arg);
+ arg->type = CMD_PARSE_STRING;
+ arg->string = yyvsp[0].token;
+ TAILQ_INSERT_HEAD(&yyval.command->arguments, arg, entry);
+ }
+break;
+case 33:
+#line 435 "cmd-parse.y"
+{
+ struct cmd_parse_state *ps = &parse_state;
+ struct cmd_parse_argument *arg;
+
+ yyval.command = xcalloc(1, sizeof *yyval.command);
+ yyval.command->line = ps->input->line;
+ TAILQ_INIT(&yyval.command->arguments);
+
+ TAILQ_CONCAT(&yyval.command->arguments, yyvsp[0].arguments, entry);
+ free(yyvsp[0].arguments);
+
+ arg = xcalloc(1, sizeof *arg);
+ arg->type = CMD_PARSE_STRING;
+ arg->string = yyvsp[-1].token;
+ TAILQ_INSERT_HEAD(&yyval.command->arguments, arg, entry);
+ }
+break;
+case 34:
+#line 453 "cmd-parse.y"
+{
+ if (yyvsp[-2].flag)
+ yyval.commands = yyvsp[-1].commands;
+ else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ }
+ }
+break;
+case 35:
+#line 462 "cmd-parse.y"
+{
+ if (yyvsp[-4].flag) {
+ yyval.commands = yyvsp[-3].commands;
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[-3].commands);
+ }
+ }
+break;
+case 36:
+#line 472 "cmd-parse.y"
+{
+ if (yyvsp[-3].flag) {
+ yyval.commands = yyvsp[-2].commands;
+ cmd_parse_free_commands(yyvsp[-1].elif.commands);
+ } else if (yyvsp[-1].elif.flag) {
+ yyval.commands = yyvsp[-1].elif.commands;
+ cmd_parse_free_commands(yyvsp[-2].commands);
+ } else {
+ yyval.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-2].commands);
+ cmd_parse_free_commands(yyvsp[-1].elif.commands);
+ }
+ }
+break;
+case 37:
+#line 486 "cmd-parse.y"
+{
+ if (yyvsp[-5].flag) {
+ yyval.commands = yyvsp[-4].commands;
+ cmd_parse_free_commands(yyvsp[-3].elif.commands);
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else if (yyvsp[-3].elif.flag) {
+ yyval.commands = yyvsp[-3].elif.commands;
+ cmd_parse_free_commands(yyvsp[-4].commands);
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[-4].commands);
+ cmd_parse_free_commands(yyvsp[-3].elif.commands);
+ }
+ }
+break;
+case 38:
+#line 503 "cmd-parse.y"
+{
+ if (yyvsp[-1].flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[0].commands;
+ } else {
+ yyval.elif.flag = 0;
+ yyval.elif.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[0].commands);
+ }
+ }
+break;
+case 39:
+#line 514 "cmd-parse.y"
+{
+ if (yyvsp[-2].flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[-1].commands;
+ cmd_parse_free_commands(yyvsp[0].elif.commands);
+ } else if (yyvsp[0].elif.flag) {
+ yyval.elif.flag = 1;
+ yyval.elif.commands = yyvsp[0].elif.commands;
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ } else {
+ yyval.elif.flag = 0;
+ yyval.elif.commands = cmd_parse_new_commands();
+ cmd_parse_free_commands(yyvsp[-1].commands);
+ cmd_parse_free_commands(yyvsp[0].elif.commands);
+ }
+ }
+break;
+case 40:
+#line 532 "cmd-parse.y"
+{
+ yyval.arguments = xcalloc(1, sizeof *yyval.arguments);
+ TAILQ_INIT(yyval.arguments);
+
+ TAILQ_INSERT_HEAD(yyval.arguments, yyvsp[0].argument, entry);
+ }
+break;
+case 41:
+#line 539 "cmd-parse.y"
+{
+ TAILQ_INSERT_HEAD(yyvsp[0].arguments, yyvsp[-1].argument, entry);
+ yyval.arguments = yyvsp[0].arguments;
+ }
+break;
+case 42:
+#line 545 "cmd-parse.y"
+{
+ yyval.argument = xcalloc(1, sizeof *yyval.argument);
+ yyval.argument->type = CMD_PARSE_STRING;
+ yyval.argument->string = yyvsp[0].token;
+ }
+break;
+case 43:
+#line 551 "cmd-parse.y"
+{
+ yyval.argument = xcalloc(1, sizeof *yyval.argument);
+ yyval.argument->type = CMD_PARSE_STRING;
+ yyval.argument->string = yyvsp[0].token;
+ }
+break;
+case 44:
+#line 557 "cmd-parse.y"
+{
+ yyval.argument = xcalloc(1, sizeof *yyval.argument);
+ yyval.argument->type = CMD_PARSE_COMMANDS;
+ yyval.argument->commands = yyvsp[0].commands;
+ }
+break;
+case 45:
+#line 564 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-1].commands;
+ }
+break;
+case 46:
+#line 568 "cmd-parse.y"
+{
+ yyval.commands = yyvsp[-2].commands;
+ TAILQ_CONCAT(yyval.commands, yyvsp[-1].commands, entry);
+ free(yyvsp[-1].commands);
+ }
+break;
+#line 2152 "cmd-parse.c"
+ }
+ yyssp -= yym;
+ yystate = *yyssp;
+ yyvsp -= yym;
+ yym = yylhs[yyn];
+ if (yystate == 0 && yym == 0)
+ {
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: after reduction, shifting from state 0 to\
+ state %d\n", YYPREFIX, YYFINAL);
+#endif
+ yystate = YYFINAL;
+ *++yyssp = YYFINAL;
+ *++yyvsp = yyval;
+ if (yychar < 0)
+ {
+ if ((yychar = yylex()) < 0) yychar = 0;
+#if YYDEBUG
+ if (yydebug)
+ {
+ yys = 0;
+ if (yychar <= YYMAXTOKEN) yys = yyname[yychar];
+ if (!yys) yys = "illegal-symbol";
+ printf("%sdebug: state %d, reading %d (%s)\n",
+ YYPREFIX, YYFINAL, yychar, yys);
+ }
+#endif
+ }
+ if (yychar == 0) goto yyaccept;
+ goto yyloop;
+ }
+ if ((yyn = yygindex[yym]) && (yyn += yystate) >= 0 &&
+ yyn <= YYTABLESIZE && yycheck[yyn] == yystate)
+ yystate = yytable[yyn];
+ else
+ yystate = yydgoto[yym];
+#if YYDEBUG
+ if (yydebug)
+ printf("%sdebug: after reduction, shifting from state %d \
+to state %d\n", YYPREFIX, *yyssp, yystate);
+#endif
+ if (yyssp >= yysslim && yygrowstack())
+ {
+ goto yyoverflow;
+ }
+ *++yyssp = yystate;
+ *++yyvsp = yyval;
+ goto yyloop;
+yyoverflow:
+ yyerror("yacc stack overflow");
+yyabort:
+ if (yyss)
+ free(yyss);
+ if (yyvs)
+ free(yyvs);
+ yyss = yyssp = NULL;
+ yyvs = yyvsp = NULL;
+ yystacksize = 0;
+ return (1);
+yyaccept:
+ if (yyss)
+ free(yyss);
+ if (yyvs)
+ free(yyvs);
+ yyss = yyssp = NULL;
+ yyvs = yyvsp = NULL;
+ yystacksize = 0;
+ return (0);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 06:10:34 +0000