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lexer.l
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lexer.l
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/*
* ArduLogic - Low Speed Logic Analyzer using the Arduino Hardware
*
* Copyright (C) 2011 Clifford Wolf <clifford@clifford.at>
*
* 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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
%{
#include <list>
#include "ardulogic.h"
#include "parser.hh"
%}
%option yylineno
%option noyywrap
%%
A[0-5] {
yylval.num = yytext[1]-'0';
return TOK_PIN;
}
D[2-7] {
yylval.num = 6 + yytext[1]-'2';
return TOK_PIN;
}
\"[#-~]+\" {
yylval.str = strdup(yytext+1);
yylval.str[strlen(yylval.str)-1] = 0;
return TOK_STRING;
}
[0-9]+Hz {
yylval.num = atoi(yytext);
return TOK_FREQ;
}
[0-9]+kHz {
yylval.num = 1000 * atoi(yytext);
return TOK_FREQ;
}
"trigger" { return TOK_TRIGGER; }
"posedge" { return TOK_POSEDGE; }
"negedge" { return TOK_NEGEDGE; }
"capture" { return TOK_CAPTURE; }
"pullup" { return TOK_PULLUP; }
"label" { return TOK_LABEL; }
"decode" { return TOK_DECODE; }
"spi" { return TOK_SPI; }
"i2c" { return TOK_I2C; }
"jtag" { return TOK_JTAG; }
"msb" { return TOK_MSB; }
"lsb" { return TOK_LSB; }
[\n\r] { return TOK_EOL; }
"#"[^\n\r]* /* comment */
[\t ] /* ignore whitespace*/
. { return yytext[0]; }
%%
extern void *yyunput_usused_ptr;
void *yyunput_usused_ptr = (void*)&yyunput;