Rev 2714 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 2714 | Rev 3022 | ||
---|---|---|---|
1 | %{ |
1 | %{ |
2 | /* $NetBSD: arith_lex.l,v 1.10 1999/02/05 07:52:52 christos Exp $ */ |
2 | /* $NetBSD: arith_lex.l,v 1.10 1999/02/05 07:52:52 christos Exp $ */ |
3 | 3 | ||
4 | /*- |
4 | /*- |
5 | * Copyright (c) 1993 |
5 | * Copyright (c) 1993 |
6 | * The Regents of the University of California. All rights reserved. |
6 | * The Regents of the University of California. All rights reserved. |
7 | * |
7 | * |
8 | * This code is derived from software contributed to Berkeley by |
8 | * This code is derived from software contributed to Berkeley by |
9 | * Kenneth Almquist. |
9 | * Kenneth Almquist. |
10 | * |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
18 | * documentation and/or other materials provided with the distribution. |
19 | * 3. All advertising materials mentioning features or use of this software |
19 | * 3. All advertising materials mentioning features or use of this software |
20 | * must display the following acknowledgement: |
20 | * must display the following acknowledgement: |
21 | * This product includes software developed by the University of |
21 | * This product includes software developed by the University of |
22 | * California, Berkeley and its contributors. |
22 | * California, Berkeley and its contributors. |
23 | * 4. Neither the name of the University nor the names of its contributors |
23 | * 4. Neither the name of the University nor the names of its contributors |
24 | * may be used to endorse or promote products derived from this software |
24 | * may be used to endorse or promote products derived from this software |
25 | * without specific prior written permission. |
25 | * without specific prior written permission. |
26 | * |
26 | * |
27 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
27 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
28 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
29 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
30 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
31 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
35 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
36 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
37 | * SUCH DAMAGE. |
37 | * SUCH DAMAGE. |
38 | */ |
38 | */ |
39 | 39 | ||
40 | #include <sys/cdefs.h> |
40 | #include <sys/cdefs.h> |
41 | #ifndef lint |
41 | #ifndef lint |
42 | #if 0 |
42 | #if 0 |
43 | static char sccsid[] = "@(#)arith_lex.l 8.3 (Berkeley) 5/4/95"; |
43 | static char sccsid[] = "@(#)arith_lex.l 8.3 (Berkeley) 5/4/95"; |
44 | #else |
44 | #else |
45 | __RCSID("$NetBSD: arith_lex.l,v 1.10 1999/02/05 07:52:52 christos Exp $"); |
45 | __RCSID("$NetBSD: arith_lex.l,v 1.10 1999/02/05 07:52:52 christos Exp $"); |
46 | #endif |
46 | #endif |
47 | #endif /* not lint */ |
47 | #endif /* not lint */ |
48 | 48 | ||
49 | #include <unistd.h> |
49 | #include <unistd.h> |
50 | #include "arith.h" |
50 | #include "arith.h" |
51 | #include "error.h" |
51 | #include "error.h" |
52 | #include "expand.h" |
52 | #include "expand.h" |
53 | 53 | ||
54 | extern int yylval; |
54 | extern int yylval; |
55 | extern char *arith_buf, *arith_startbuf; |
55 | extern char *arith_buf, *arith_startbuf; |
56 | #undef YY_INPUT |
56 | #undef YY_INPUT |
57 | #define YY_INPUT(buf,result,max) \ |
57 | #define YY_INPUT(buf,result,max) \ |
58 | result = (*buf = *arith_buf++) ? 1 : YY_NULL; |
58 | result = (*buf = *arith_buf++) ? 1 : YY_NULL; |
59 | #define YY_NO_UNPUT |
59 | #define YY_NO_UNPUT |
60 | %} |
60 | %} |
61 | 61 | ||
62 | %% |
62 | %% |
63 | [ \t\n] { ; } |
63 | [ \t\n] { ; } |
64 | [0-9]+ { yylval = atol(yytext); return(ARITH_NUM); } |
64 | [0-9]+ { yylval = atol(yytext); return(ARITH_NUM); } |
65 | "(" { return(ARITH_LPAREN); } |
65 | "(" { return(ARITH_LPAREN); } |
66 | ")" { return(ARITH_RPAREN); } |
66 | ")" { return(ARITH_RPAREN); } |
67 | "||" { return(ARITH_OR); } |
67 | "||" { return(ARITH_OR); } |
68 | "&&" { return(ARITH_AND); } |
68 | "&&" { return(ARITH_AND); } |
69 | "|" { return(ARITH_BOR); } |
69 | "|" { return(ARITH_BOR); } |
70 | "^" { return(ARITH_BXOR); } |
70 | "^" { return(ARITH_BXOR); } |
71 | "&" { return(ARITH_BAND); } |
71 | "&" { return(ARITH_BAND); } |
72 | "==" { return(ARITH_EQ); } |
72 | "==" { return(ARITH_EQ); } |
73 | "!=" { return(ARITH_NE); } |
73 | "!=" { return(ARITH_NE); } |
74 | ">" { return(ARITH_GT); } |
74 | ">" { return(ARITH_GT); } |
75 | ">=" { return(ARITH_GE); } |
75 | ">=" { return(ARITH_GE); } |
76 | "<" { return(ARITH_LT); } |
76 | "<" { return(ARITH_LT); } |
77 | "<=" { return(ARITH_LE); } |
77 | "<=" { return(ARITH_LE); } |
78 | "<<" { return(ARITH_LSHIFT); } |
78 | "<<" { return(ARITH_LSHIFT); } |
79 | ">>" { return(ARITH_RSHIFT); } |
79 | ">>" { return(ARITH_RSHIFT); } |
80 | "*" { return(ARITH_MUL); } |
80 | "*" { return(ARITH_MUL); } |
81 | "/" { return(ARITH_DIV); } |
81 | "/" { return(ARITH_DIV); } |
82 | "%" { return(ARITH_REM); } |
82 | "%" { return(ARITH_REM); } |
83 | "+" { return(ARITH_ADD); } |
83 | "+" { return(ARITH_ADD); } |
84 | "-" { return(ARITH_SUB); } |
84 | "-" { return(ARITH_SUB); } |
85 | "~" { return(ARITH_BNOT); } |
85 | "~" { return(ARITH_BNOT); } |
86 | "!" { return(ARITH_NOT); } |
86 | "!" { return(ARITH_NOT); } |
87 | . { error("arith: syntax error: \"%s\"\n", arith_startbuf); } |
87 | . { error("arith: syntax error: \"%s\"\n", arith_startbuf); } |
88 | %% |
88 | %% |
89 | 89 | ||
90 | void |
90 | void |
91 | arith_lex_reset() { |
91 | arith_lex_reset() { |
92 | #ifdef YY_NEW_FILE |
92 | #ifdef YY_NEW_FILE |
93 | YY_NEW_FILE; |
93 | YY_NEW_FILE; |
94 | #endif |
94 | #endif |
95 | } |
95 | } |
96 | 96 |