X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Flexer%2Flexer.h;h=57803e0541204a461a2ea4612667ba7d5152b85d;hb=f5c108becd49d78f4898cab11352291f5689d24e;hp=36d79d3afef7a2a25bf7cf7139195ade4f7267dc;hpb=30728b09540b323fef43b23dd5f1e4d1e8298c92;p=pspp-builds.git

diff --git a/src/language/lexer/lexer.h b/src/language/lexer/lexer.h
index 36d79d3a..57803e05 100644
--- a/src/language/lexer/lexer.h
+++ b/src/language/lexer/lexer.h
@@ -1,6 +1,5 @@
 /* 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
@@ -20,72 +19,82 @@
 #if !lexer_h
 #define lexer_h 1
 
-#include <data/variable.h>
 #include <ctype.h>
 #include <stdbool.h>
-
+#include <stddef.h>
 #include <data/identifier.h>
+#include <data/variable.h>
+#include <libpspp/getl.h>
 
+struct lexer;
 
-extern int token;
-extern double tokval;
-extern char tokid[LONG_NAME_LEN + 1];
-extern struct string tokstr;
+/* Initialization. */
+struct lexer * lex_create (struct source_stream *);
+void lex_destroy (struct lexer *);
 
-#include <stddef.h>
+struct source_stream * lex_get_source_stream (const struct lexer *);
 
-/* Initialization. */
-void lex_init (void);
-void lex_done (void);
 
 /* Common functions. */
-void lex_get (void);
-void lex_error (const char *, ...);
+void lex_get (struct lexer *);
+void lex_error (struct lexer *, const char *, ...);
 void lex_sbc_only_once (const char *);
-void lex_sbc_missing (const char *);
-int lex_end_of_command (void);
+void lex_sbc_missing (struct lexer *, const char *);
+int lex_end_of_command (struct lexer *);
 
 /* Token testing functions. */
-bool lex_is_number (void);
-double lex_number (void);
-bool lex_is_integer (void);
-long lex_integer (void);
+bool lex_is_number (struct lexer *);
+double lex_number (struct lexer *);
+bool lex_is_integer (struct lexer *);
+long lex_integer (struct lexer *);
+bool lex_is_string (struct lexer *);
+
 
 /* Token matching functions. */
-int lex_match (int);
-int lex_match_id (const char *);
-int lex_match_int (int);
+bool lex_match (struct lexer *, int);
+bool lex_match_id (struct lexer *, const char *);
+bool lex_match_int (struct lexer *, 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);
-	
+bool lex_force_match (struct lexer *, int);
+bool lex_force_match_id (struct lexer *, const char *);
+bool lex_force_int (struct lexer *);
+bool lex_force_num (struct lexer *);
+bool lex_force_id (struct lexer *);
+bool lex_force_string (struct lexer *);
+
 /* Weird token functions. */
-int lex_look_ahead (void);
-void lex_put_back (int);
-void lex_put_back_id (const char *tokid);
+int lex_look_ahead (struct lexer *);
+void lex_put_back (struct lexer *, int);
+void lex_put_back_id (struct lexer *, 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);
-void lex_discard_rest_of_command (void);
+const char *lex_entire_line (const struct lexer *);
+const struct string *lex_entire_line_ds (const struct lexer *);
+const char *lex_rest_of_line (const struct lexer *);
+bool lex_end_dot (const struct lexer *);
+void lex_preprocess_line (struct string *, enum getl_syntax,
+                          bool *line_starts_command,
+                          bool *line_ends_command);
+void lex_discard_line (struct lexer *);
+void lex_discard_rest_of_command (struct lexer *);
 
 /* Weird line reading functions. */
-bool lex_get_line (void);
+bool lex_get_line (struct lexer *);
+bool lex_get_line_raw (struct lexer *, enum getl_syntax *);
 
 /* Token names. */
 const char *lex_token_name (int);
-char *lex_token_representation (void);
+char *lex_token_representation (struct lexer *);
+
+/* Token accessors */
+int lex_token (const struct lexer *);
+double lex_tokval (const struct lexer *);
+const char *lex_tokid (const struct lexer *);
+const struct string *lex_tokstr (const struct lexer *);
 
 /* Really weird functions. */
-void lex_negative_to_dash (void);
-void lex_reset_eof (void);
-void lex_skip_comment (void);
+void lex_negative_to_dash (struct lexer *);
+void lex_skip_comment (struct lexer *);
 
 #endif /* !lexer_h */