Qucs-core  0.0.19
scan_citi.l
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00001 /* -*-c-*- */
00002 
00003 %{
00004 /*
00005  * scan_citi.l - scanner for CITIfiles
00006  *
00007  * Copyright (C) 2006 Stefan Jahn <stefan@lkcc.org>
00008  *
00009  * This is free software; you can redistribute it and/or modify
00010  * it under the terms of the GNU General Public License as published by
00011  * the Free Software Foundation; either version 2, or (at your option)
00012  * any later version.
00013  *
00014  * This software is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017  * GNU General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU General Public License
00020  * along with this package; see the file COPYING.  If not, write to
00021  * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
00022  * Boston, MA 02110-1301, USA.
00023  *
00024  * $Id$
00025  *
00026  */
00027 
00028 #if defined(__clang__)
00029 #pragma clang diagnostic push
00030 #pragma clang diagnostic ignored "-Wdeprecated-register"
00031 #endif
00032 
00033 #if HAVE_CONFIG_H
00034 # include <config.h>
00035 #endif
00036 
00037 #include <stdio.h>
00038 #include <stdlib.h>
00039 #include <string.h>
00040 #include <ctype.h>
00041 
00042 #ifdef __MINGW32__
00043 #include <io.h>
00044 #endif
00045 
00046 #ifdef HAVE_UNISTD_H
00047 #include <unistd.h>
00048 #endif
00049 
00050 #include "logging.h"
00051 #include "complex.h"
00052 #include "object.h"
00053 #include "vector.h"
00054 #include "dataset.h"
00055 #include "check_citi.h"
00056 #include "tokens_citi.h"
00057 
00058 using namespace qucs;
00059 
00060 %}
00061 
00062 WS       [ \t\n\r]
00063 ID       [a-zA-Z_][a-zA-Z0-9_\.]*
00064 DIGIT    [0-9]
00065 EXPONENT [Ee][+-]?{DIGIT}+
00066 INT      [+-]?{DIGIT}+
00067 FLOAT1   [+-]?{DIGIT}+{EXPONENT}
00068 FLOAT2   [+-]?{DIGIT}*"."{DIGIT}+({EXPONENT})?
00069 SPACE    [ \t]
00070 EOL      \r?\n
00071 
00072 %x COMMENTS FLOATS LISTS DATAS VALUES
00073 %option yylineno noyywrap nounput noinput prefix="citi_"
00074 
00075 %%
00076 
00077 <INITIAL,FLOATS,LISTS>{EOL}+ { /* detect end of line */ return Eol; }
00078 
00079 <*>{SPACE} /* skip spaces */
00080 
00081 <INITIAL,DATAS>{INT} { /* identify integer */
00082     citi_lval.d = strtol (citi_text, NULL, 10);
00083     return Integer;
00084   }
00085 
00086 <INITIAL>[a-zA-Z]"."{DIGIT}+"."{DIGIT}+ {
00087     return Version;
00088   }
00089 
00090 <INITIAL,DATAS>("RI"|"MAG"|"MAGANGLE"|"DBANGLE") {
00091     citi_lval.ident = strdup (citi_text);
00092     return VarType;
00093   }
00094 
00095 <INITIAL>^"CITIFILE" { return CITIFILE; }
00096 <INITIAL>^"VAR"      { return VAR; }
00097 <INITIAL>^"DATA"     { BEGIN(DATAS); return DATA; }
00098 <INITIAL>^"NAME"     { return NAME; }
00099 <INITIAL>^"BEGIN"    { BEGIN(FLOATS); return Begin; }
00100 <INITIAL>^"CONSTANT" { BEGIN(VALUES); return CONSTANT; }
00101 <INITIAL>^"COMMENT"  { BEGIN(COMMENTS); }
00102 
00103 <INITIAL>^"SEG_LIST_BEGIN" { BEGIN(LISTS); return SegListBegin; }
00104 <INITIAL>^"VAR_LIST_BEGIN" { BEGIN(LISTS); return VarListBegin; }
00105 <LISTS>^"SEG_LIST_END" { BEGIN(INITIAL); return SegListEnd; }
00106 <LISTS>^"VAR_LIST_END" { BEGIN(INITIAL); return VarListEnd; }
00107 <LISTS>^"SEG" { return SEG; }
00108 
00109 <INITIAL,DATAS,VALUES>{ID} { /* identify identifier */
00110     citi_lval.ident = strdup (citi_text);
00111     return Identifier;
00112   }
00113 
00114 <FLOATS,LISTS,VALUES>({FLOAT1}|{FLOAT2}|{INT}) { /* identify float */
00115     citi_lval.f = strtod (citi_text, NULL);
00116     return Float;
00117   }
00118 
00119 <VALUES>{EOL}+ { BEGIN(INITIAL); return Eol; }
00120 
00121 <DATAS>"," { /* pass the ',' to the parser */ return ','; }
00122 <DATAS>"[" { /* pass the '[' to the parser */ return '['; }
00123 <DATAS>"]" { /* pass the ']' to the parser */ BEGIN(INITIAL); return ']'; }
00124 <DATAS>{EOL}+ { BEGIN(INITIAL); return Eol; }
00125 
00126 <FLOATS>"," { /* pass the ',' to the parser */ return ','; }
00127 
00128 <FLOATS>^"END" { BEGIN(INITIAL); return End; }
00129 
00130 <INITIAL>^"#" { /* leave these characters */
00131     BEGIN(COMMENTS);
00132   }
00133 
00134 <COMMENTS>.      { /* skip any character in here */ }
00135 <COMMENTS>{EOL}+ { BEGIN(INITIAL); /* skipping ends here */ }
00136 
00137 <*>. { /* any other character in invalid */
00138     logprint (LOG_ERROR,
00139               "line %d: syntax error, unrecognized character: `%s'\n",
00140               citi_lineno, citi_text);
00141     return InvalidCharacter;
00142   }
00143 
00144 %%