1 /* src.h -- Public #include File
2 Copyright (C) 1995 Free Software Foundation, Inc.
3 Contributed by James Craig Burley.
5 This file is part of GNU Fortran.
7 GNU Fortran is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU Fortran is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU Fortran; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
28 /* Allow multiple inclusion to work. */
36 extern char ffesrc_toupper_[256];
37 extern char ffesrc_tolower_[256];
38 extern char ffesrc_char_match_init_[256];
39 extern char ffesrc_char_match_noninit_[256];
40 extern char ffesrc_char_source_[256];
41 extern char ffesrc_char_internal_init_[256];
42 extern ffebad ffesrc_bad_symbol_init_[256];
43 extern ffebad ffesrc_bad_symbol_noninit_[256];
44 extern bool ffesrc_check_symbol_;
45 extern bool ffesrc_ok_match_init_upper_;
46 extern bool ffesrc_ok_match_init_lower_;
47 extern bool ffesrc_ok_match_noninit_upper_;
48 extern bool ffesrc_ok_match_noninit_lower_;
50 /* These C-language-syntax modifiers could avoid the match arg if gcc's
51 extension allowing macros to generate dynamic labels was used. They
52 could use the no_match arg (and the "caller's" label defs) if there
53 was a way to say "goto default" in a switch statement. Oh well.
55 NOTE: These macro assume "case FFESRC_CASE_MATCH_[NON]INIT(...):" is used
56 to invoke them, and thus assume the "above" case does not fall through to
57 this one. This syntax was chosen to keep indenting tools working. */
59 #define FFESRC_CASE_MATCH_INIT(upper, lower, match, no_match) \
60 upper: if (!ffesrc_ok_match_init_upper_) goto no_match; \
62 case lower: if (!ffesrc_ok_match_init_lower_) goto no_match; \
65 #define FFESRC_CASE_MATCH_NONINIT(upper, lower, match, no_match) \
66 upper: if (!ffesrc_ok_match_noninit_upper_) goto no_match; \
68 case lower: if (!ffesrc_ok_match_noninit_lower_) goto no_match; \
71 /* If character is ok in a symbol name (not including intrinsic names),
72 returns FFEBAD, else returns something else, type ffebad. */
74 #define ffesrc_bad_char_symbol_init(c) \
75 (ffesrc_bad_symbol_init_[(unsigned int) (c)])
76 #define ffesrc_bad_char_symbol_noninit(c) \
77 (ffesrc_bad_symbol_noninit_[(unsigned int) (c)])
79 /* Returns TRUE if character is ok in a symbol name (including
80 intrinsic names). Doesn't care about case settings, this is
81 used just for parsing (before semantic complaints about symbol-
82 name casing and such). One specific usage is to decide whether
83 an underscore is valid as the first or subsequent character in
84 some symbol name -- if not, an underscore is a separate token
85 (while lexing, for example). Note that ffesrc_is_name_init
86 must return TRUE for a (not necessarily proper) subset of
87 characters for which ffelex_is_firstnamechar returns TRUE. */
89 #define ffesrc_is_name_init(c) \
90 ((ISALPHA ((c))) || (! (1 || ffe_is_90 ()) && ((c) == '_')))
91 #define ffesrc_is_name_noninit(c) \
92 ((ISALNUM ((c))) || (! (1 || ffe_is_90 ()) && ((c) == '_')))
94 /* Test if source-translated character matches given alphabetic character
95 (passed in both uppercase and lowercase, to allow for custom speedup
96 of compilation in environments where compile-time options aren't needed
99 #define ffesrc_char_match_init(c, up, low) \
100 (ffesrc_char_match_init_[(unsigned int) (c)] == up)
102 #define ffesrc_char_match_noninit(c, up, low) \
103 (ffesrc_char_match_noninit_[(unsigned int) (c)] == up)
105 /* Translate character from input-file form to source form. */
107 #define ffesrc_char_source(c) (ffesrc_char_source_[(unsigned int) (c)])
109 /* Translate internal character (upper/lower) to source form in an
110 initial-character context (i.e. ffesrc_char_match_init of the result
111 will always succeed). */
113 #define ffesrc_char_internal_init(up, low) \
114 (ffesrc_char_internal_init_[(unsigned int) (up)])
116 /* Returns TRUE if a name representing a symbol should be checked for
117 validity according to compile-time options. That is, if it is possible
118 that ffesrc_bad_char_symbol(c) can return something other than FFEBAD
119 for any valid character in an ffelex NAME(S) token. */
121 #define ffesrc_check_symbol() ffesrc_check_symbol_
123 #define ffesrc_init_0()
124 void ffesrc_init_1 (void);
125 #define ffesrc_init_2()
126 #define ffesrc_init_3()
127 #define ffesrc_init_4()
128 int ffesrc_strcmp_1ns2i (ffeCase mcase, const char *var, int len,
130 int ffesrc_strcmp_2c (ffeCase mcase, const char *var, const char *str_uc,
131 const char *str_lc, const char *str_ic);
132 int ffesrc_strncmp_2c (ffeCase mcase, const char *var, const char *str_uc,
133 const char *str_lc, const char *str_ic, int len);
134 #define ffesrc_terminate_0()
135 #define ffesrc_terminate_1()
136 #define ffesrc_terminate_2()
137 #define ffesrc_terminate_3()
138 #define ffesrc_terminate_4()
139 #define ffesrc_toupper(c) (ffesrc_toupper_[(unsigned int) (c)])
140 #define ffesrc_tolower(c) (ffesrc_tolower_[(unsigned int) (c)])
142 /* End of #include file. */