| 1 | /*
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| 2 | * This file is part of flex.
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| 3 | *
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| 4 | * Redistribution and use in source and binary forms, with or without
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| 5 | * modification, are permitted provided that the following conditions
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| 6 | * are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | *
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| 14 | * Neither the name of the University nor the names of its contributors
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| 15 | * may be used to endorse or promote products derived from this software
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| 16 | * without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 21 | * PURPOSE.
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| 22 | */
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| 23 |
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| 24 | /* A reentrant scanner.
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| 25 | This file will not compile under flex version <= 2.5.4.
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| 26 | Sample Input:
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| 27 | # this is a comment
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| 28 | foo = true
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| 29 | bar = "string value"
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| 30 | integer = 43
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| 31 | */
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| 32 | %{
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| 33 | #include "config.h"
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| 34 | %}
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| 35 |
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| 36 | %option prefix="test" outfile="scanner.c"
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| 37 | %option nounput noyywrap noyylineno warn nodefault
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| 38 | %option reentrant
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| 39 |
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| 40 | IDENT [[:alnum:]_-]
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| 41 | WS [[:blank:]]
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| 42 | %%
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| 43 |
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| 44 | ^{IDENT}+{WS}*={WS}*(true|false){WS}*\r?\n { return 100;}
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| 45 | ^{IDENT}+{WS}*={WS}*\"[^\"\n\r]*\"{WS}*\r?\n { return 101;}
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| 46 | ^{IDENT}+{WS}*={WS}*[[:digit:]]+{WS}*\r?\n { return 102;}
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| 47 | ^{WS}*#.*\r?\n { }
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| 48 | ^{WS}*\r?\n { }
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| 49 | .|\n { fprintf(stderr,"Invalid line.\n"); exit(-1);}
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| 50 |
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| 51 | %%
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| 52 |
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| 53 | int main(void);
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| 54 |
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| 55 | int main ()
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| 56 | {
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| 57 | yyscan_t lexer;
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| 58 | yylex_init( &lexer );
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| 59 | yyset_out ( stdout,lexer);
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| 60 | yyset_in ( stdin, lexer);
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| 61 | while( yylex(lexer) )
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| 62 | {
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| 63 | }
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| 64 | yylex_destroy( lexer );
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| 65 | printf("TEST RETURNING OK.\n");
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| 66 | return 0;
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| 67 | }
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| 68 |
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