]>
Commit | Line | Data |
---|---|---|
1239777d AD |
1 | /* -*- C -*- */ |
2 | /* Scan Bison Skeletons. | |
3 | Copyright (C) 2001 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of Bison, the GNU Compiler Compiler. | |
6 | ||
7 | Bison is free software; you can redistribute it and/or modify it | |
8 | under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | Bison is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | General Public License for more details. | |
9b3add5b | 16 | |
1239777d AD |
17 | You should have received a copy of the GNU General Public License |
18 | along with Bison; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
9b3add5b | 21 | |
aed7fd9b AD |
22 | %option debug nodefault noyywrap nounput |
23 | %option prefix="skel_" outfile="lex.yy.c" | |
9b3add5b | 24 | |
1239777d AD |
25 | /* If we enable |
26 | ||
27 | %option yylineno | |
28 | ||
29 | Then we have warning: `yy_flex_realloc' defined but not used. | |
30 | Seems like a Flex bug to me: Why the heck yylineno would trigger | |
31 | the REJECT exception??? */ | |
9b3add5b | 32 | |
aed7fd9b AD |
33 | %{ |
34 | #include "system.h" | |
35 | #include "skeleton.h" | |
36 | #include "parse-skel.h" | |
37 | %} | |
38 | ||
39 | %{ | |
40 | /* Each time we match a string, move the end cursor to its end. */ | |
41 | #define YY_USER_ACTION yylloc->last_column += yyleng; | |
42 | %} | |
9b3add5b | 43 | %% |
aed7fd9b AD |
44 | %{ |
45 | /* At each yylex invocation, mark the current position as the | |
46 | start of the next token. */ | |
47 | LOCATION_STEP (*yylloc); | |
48 | %} | |
9b3add5b RA |
49 | |
50 | "%%{line}" { return LINE; } | |
51 | "%%{skeleton-line}" { return SLINE; } | |
52 | ||
53 | "%%{yacc}" { return YACC; } | |
54 | "%%{section}" { return SECTION; } | |
55 | ||
56 | "%%{guards}" { return GUARDS; } | |
57 | "%%{actions}" { return ACTIONS; } | |
58 | "%%{tokendef}" { return TOKENS; } | |
59 | ||
a4b36db4 AD |
60 | /* Muscle. */ |
61 | "%%{"[a-zA-Z][0-9a-zA-Z_-]+"}" { | |
aed7fd9b | 62 | yylval->string = xstrndup (yytext + 3, yyleng - 4); |
9b3add5b RA |
63 | return MUSCLE; |
64 | } | |
65 | ||
a4b36db4 AD |
66 | /* String. */ |
67 | "%%\"".*"\"" { | |
aed7fd9b | 68 | yylval->string = xstrndup (yytext + 3, yyleng - 4); |
9b3add5b RA |
69 | return STRING; |
70 | } | |
71 | ||
a4b36db4 AD |
72 | /* End of line. */ |
73 | "\n" { | |
aed7fd9b | 74 | LOCATION_LINES (*yylloc, yyleng); |
9b3add5b RA |
75 | return '\n'; |
76 | } | |
77 | ||
24fad99e AD |
78 | /* White spaces. */ |
79 | [\t ]+ { | |
aed7fd9b | 80 | yylval->string = yytext; |
24fad99e AD |
81 | return BLANKS; |
82 | } | |
83 | ||
aed7fd9b AD |
84 | /* Plain Characters. */ |
85 | [^%\n]+ { | |
86 | yylval->string = yytext; | |
87 | return RAW; | |
88 | } | |
89 | ||
a4b36db4 AD |
90 | /* Plain Character. */ |
91 | . { | |
aed7fd9b | 92 | yylval->character = *yytext; |
9b3add5b RA |
93 | return CHARACTER; |
94 | } | |
95 | ||
96 | %% |