X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Flanguage%2Flexer%2Flexer.h;h=1abefb6b623fb30acc42ca4c05a6da27227bd8ce;hb=48e0129f54424a6fd5fb1bc7651e48dedc5293c2;hp=4f9259250dadbd3fe5985afeef259ff584b64df6;hpb=480a0746507ce73d26f528b56dc3ed80195096e0;p=pspp-builds.git diff --git a/src/language/lexer/lexer.h b/src/language/lexer/lexer.h index 4f925925..1abefb6b 100644 --- a/src/language/lexer/lexer.h +++ b/src/language/lexer/lexer.h @@ -1,20 +1,18 @@ -/* PSPP - computes sample statistics. - Copyright (C) 1997-9, 2000 Free Software Foundation, Inc. +/* PSPP - a program for statistical analysis. + Copyright (C) 1997-9, 2000, 2010 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 . */ #if !lexer_h #define lexer_h 1 @@ -32,8 +30,10 @@ struct lexer; struct lexer * lex_create (struct source_stream *); void lex_destroy (struct lexer *); +/* State accessors */ struct source_stream * lex_get_source_stream (const struct lexer *); - +enum syntax_mode lex_current_syntax_mode (const struct lexer *); +enum error_mode lex_current_error_mode (const struct lexer *); /* Common functions. */ void lex_get (struct lexer *); @@ -47,30 +47,35 @@ 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. */ -bool lex_match (struct lexer *, int); +bool lex_match (struct lexer *, enum token_type); bool lex_match_id (struct lexer *, const char *); +bool lex_match_id_n (struct lexer *, const char *, size_t n); bool lex_match_int (struct lexer *, int); +bool lex_match_hyphenated_word (struct lexer *lexer, const char *s); + /* Forcible matching functions. */ -bool lex_force_match (struct lexer *, int); +bool lex_force_match (struct lexer *, enum token_type); 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 (struct lexer *); -void lex_put_back (struct lexer *, int); -void lex_put_back_id (struct lexer *, const char *tokid); +enum token_type lex_look_ahead (struct lexer *); +void lex_put_back (struct lexer *, enum token_type); /* Weird line processing functions. */ -const char *lex_entire_line (struct lexer *); -const struct string *lex_entire_line_ds (struct lexer *); -const char *lex_rest_of_line (struct lexer *, int *end_dot); -void lex_preprocess_line (struct string *, enum getl_syntax, +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 syntax_mode, bool *line_starts_command, bool *line_ends_command); void lex_discard_line (struct lexer *); @@ -78,20 +83,19 @@ void lex_discard_rest_of_command (struct lexer *); /* Weird line reading functions. */ bool lex_get_line (struct lexer *); -bool lex_get_line_raw (struct lexer *, enum getl_syntax *); +bool lex_get_line_raw (struct lexer *); /* Token names. */ -const char *lex_token_name (int); +const char *lex_token_name (enum token_type); char *lex_token_representation (struct lexer *); /* Token accessors */ -int lex_token (const struct lexer *); +enum token_type 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 *); +const char *lex_tokcstr (const struct lexer *); +struct substring lex_tokss (const struct lexer *); /* Really weird functions. */ -void lex_negative_to_dash (struct lexer *); void lex_skip_comment (struct lexer *); #endif /* !lexer_h */