Added new files resulting from directory restructuring.

[pspp-builds.git] / src / language / lexer / lexer.h

diff --git a/src/language/lexer/lexer.h b/src/language/lexer/lexer.h
new file mode 100644 (file)
index 0000000..ad162c8
--- /dev/null
+++ b/src/language/lexer/lexer.h
@@ -0,0 +1,90 @@
+/* PSPP - computes sample statistics.
+   Copyright (C) 1997-9, 2000 Free Software Foundation, Inc.
+   Written by Ben Pfaff <blp@gnu.org>.
+
+   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 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. */
+
+#if !lexer_h
+#define lexer_h 1
+
+#include "variable.h"
+#include <ctype.h>
+#include <stdbool.h>
+
+#include "identifier.h"
+
+
+extern int token;
+extern double tokval;
+extern char tokid[LONG_NAME_LEN + 1];
+extern struct string tokstr;
+
+#include <stddef.h>
+
+/* Initialization. */
+void lex_init (void);
+void lex_done (void);
+
+/* Common functions. */
+void lex_get (void);
+void lex_error (const char *, ...);
+void lex_sbc_only_once (const char *);
+void lex_sbc_missing (const char *);
+int lex_end_of_command (void);
+
+/* Token testing functions. */
+bool lex_is_number (void);
+double lex_number (void);
+bool lex_is_integer (void);
+long lex_integer (void);
+
+/* Token matching functions. */
+int lex_match (int);
+int lex_match_id (const char *);
+int lex_match_int (int);
+
+/* Forcible matching functions. */
+int lex_force_match (int);
+int lex_force_match_id (const char *);
+int lex_force_int (void);
+int lex_force_num (void);
+int lex_force_id (void);
+int lex_force_string (void);
+       
+/* Weird token functions. */
+int lex_look_ahead (void);
+void lex_put_back (int);
+void lex_put_back_id (const char *tokid);
+
+/* Weird line processing functions. */
+const char *lex_entire_line (void);
+const char *lex_rest_of_line (int *end_dot);
+void lex_discard_line (void);
+void lex_set_prog (char *p);
+
+/* Weird line reading functions. */
+bool lex_get_line (void);
+
+/* Token names. */
+const char *lex_token_name (int);
+char *lex_token_representation (void);
+
+/* Really weird functions. */
+void lex_negative_to_dash (void);
+void lex_reset_eof (void);
+void lex_skip_comment (void);
+
+#endif /* !lexer_h */