-/* PSPP - computes sample statistics.
- Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
- Written by Ben Pfaff <blp@gnu.org>.
+/* PSPP - a program for statistical analysis.
+ Copyright (C) 1997-9, 2000, 2006, 2010, 2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#if !command_h
-#define command_h 1
+#ifndef COMMAND_H
+#define COMMAND_H 1
-/* Current program state. */
-enum
- {
- STATE_INIT, /* Initialization state. */
- STATE_INPUT, /* Input state. */
- STATE_TRANS, /* Transformation state. */
- STATE_PROC, /* Procedure state. */
- STATE_ERROR /* Invalid state transition. */
- };
+#include <stdbool.h>
/* Command return values. */
-enum
+enum cmd_result
{
/* Successful return values. */
- CMD_SUCCESS = 0x1000, /* Successfully parsed and executed. */
- CMD_EOF, /* Requested exit. */
-
- /* Various kinds of failures, in increasing order of severity. */
- CMD_TRAILING_GARBAGE, /* Followed by garbage. */
- CMD_PART_SUCCESS, /* Fully executed up to error. */
- CMD_PART_SUCCESS_MAYBE, /* May have been partially executed. */
- CMD_FAILURE, /* Not executed at all. */
- CMD_CASCADING_FAILURE /* Serious error: don't continue. */
+ CMD_SUCCESS = 1, /* Successfully parsed and executed. */
+ CMD_EOF = 2, /* End of input. */
+ CMD_FINISH = 3, /* FINISH was executed. */
+
+ /* Various kinds of failures. */
+ CMD_FAILURE = -1, /* Not executed at all. */
+ CMD_NOT_IMPLEMENTED = -2, /* Command not implemented. */
+ CMD_CASCADING_FAILURE = -3 /* Serious error: don't continue. */
+ };
+
+bool cmd_result_is_success (enum cmd_result);
+bool cmd_result_is_failure (enum cmd_result);
+
+/* Command processing state. */
+enum cmd_state
+ {
+ CMD_STATE_INITIAL, /* No active dataset yet defined. */
+ CMD_STATE_DATA, /* Active dataset has been defined. */
+ CMD_STATE_INPUT_PROGRAM, /* Inside INPUT PROGRAM. */
+ CMD_STATE_FILE_TYPE, /* Inside FILE TYPE. */
+
+ /* Inside LOOP or DO IF... */
+ CMD_STATE_NESTED_DATA, /* ...in CMD_STATE_DATA. */
+ CMD_STATE_NESTED_INPUT_PROGRAM, /* ...in CMD_STATE_INPUT_PROGRAM. */
};
-extern int pgm_state;
+struct dataset;
+struct lexer;
+
+enum cmd_result cmd_parse_in_state (struct lexer *lexer, struct dataset *ds,
+ enum cmd_state);
+
+enum cmd_result cmd_parse (struct lexer *lexer, struct dataset *ds);
-char *pspp_completion_function (const char *text, int state);
+struct command;
+const char *cmd_complete (const char *, const struct command **);
-int cmd_parse (void);
+struct dataset;
/* Prototype all the command functions. */
-#define DEFCMD(NAME, T1, T2, T3, T4, FUNC) \
- int FUNC (void);
-#define SPCCMD(NAME, T1, T2, T3, T4, FUNC) \
- int FUNC (void);
-#define DBGCMD(NAME, T1, T2, T3, T4, FUNC) \
- int FUNC (void);
-#define UNIMPL(NAME, T1, T2, T3, T4, DESC)
+#define DEF_CMD(STATES, FLAGS, NAME, FUNCTION) int FUNCTION (struct lexer *, struct dataset *);
+#define UNIMPL_CMD(NAME, DESCRIPTION)
#include "command.def"
-#undef DEFCMD
-#undef SPCCMD
-#undef UNIMPL
-#undef DBGCMD
+#undef DEF_CMD
+#undef UNIMPL_CMD
-#endif /* !command_h */
+#endif /* command.h */