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/* Copyright (C) 1999-2016
* Smithsonian Astrophysical Observatory, Cambridge, MA, USA
* For conditions of distribution and use, see copyright notice in "copyright"
*/
%option noyywrap
%option caseless
%option never-interactive
%option c++
%{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
#include "tngparser.H"
extern YYSTYPE* tnglval;
extern tngFlexLexer* tnglexx;
%}
%x DISCARD
D [0-9]
E [Ee][+-]?{D}+
/* rules */
%%
<DISCARD>[\n] { // special case-- #\n
BEGIN INITIAL;
yyless(0); // put back the terminator
strcpy(tnglval->str,""); // feed a blank string
return STRING;
}
<DISCARD>[^\n]* { // Discard reset of line
BEGIN INITIAL;
int ll = yyleng <(TNGBUFSIZE-1) ? yyleng:(TNGBUFSIZE-1);
strncpy(tnglval->str,yytext,ll);
tnglval->str[ll] = '\0';
return STRING;
}
b1950 {return B1950_;}
background {return BACKGROUND_;}
box {return BOX_;}
black {return BLACK_;}
blue {return BLUE_;}
circle {return CIRCLE_;}
cyan {return CYAN_;}
date {return DATE_;}
debug {return DEBUG_;}
degrees {return DEGREES_;}
ellipse {return ELLIPSE_;}
ecliptic {return ECLIPTIC_;}
filename {return FILENAME_;}
fk4 {return FK4_;}
fk4-no-e {return FK4_NO_E_;}
fk5 {return FK5_;}
format {return FORMAT_;}
galactic {return GALACTIC_;}
green {return GREEN_;}
helioecliptic {return HELIOECLIPTIC_;}
hms {return HMS_;}
icrs {return ICRS_;}
j2000 {return J2000_;}
lin[e] {return LINE_;}
magenta {return MAGENTA_;}
off {return OFF_;}
on {return ON_;}
physical {return PHYSICAL_;}
pixels {return PIXELS_;}
point {return POINT_;}
polygon {return POLYGON_;}
red {return RED_;}
source {return SOURCE_;}
supergalactic {return SUPERGALACTIC_;}
text {return TEXT_;}
version {return VERSION_;}
white {return WHITE_;}
yellow {return YELLOW_;}
[+-]?{D}+ { // Integer
tnglval->integer = atoi(yytext);
return INT;
}
[+-]?{D}+"."?({E})? |
[+-]?{D}*"."{D}+({E})? { // Real Number
tnglval->real = atof(yytext);
return REAL;
}
[+-]?{D}+"."?d |
[+-]?{D}*"."{D}+d { // degrees
yytext[yyleng-1] = '\0';
tnglval->real = atof(yytext);
return ANGDEGREE;
}
[+-]?{D}+:{D}+:{D}+"."? |
[+-]?{D}+:{D}+:{D}*"."{D}+ { // Sexagesimal
int ll = yyleng <(TNGBUFSIZE-1)?yyleng:(TNGBUFSIZE-1);
strncpy(tnglval->str,yytext,ll);
tnglval->str[ll] = '\0';
return SEXSTR;
}
\"[^\"\n]*\" |
\'[^\'\n]*\' { // Quoted String
int ll = (yyleng-2)<(TNGBUFSIZE-1)?(yyleng-2):(TNGBUFSIZE-1);
strncpy(tnglval->str,yytext+1,yyleng-2); // skip the " "
tnglval->str[ll] = '\0'; // Remove the '"'
return STRING;
}
\{[^\}\n]*\} { // Quoted String
int ll = (yyleng-2)<(TNGBUFSIZE-1)?(yyleng-2):(TNGBUFSIZE-1);
strncpy(tnglval->str,yytext+1,yyleng-2); // skip the '{'
tnglval->str[ll] = '\0'; // Remove the '}'
return STRING;
}
[0-9A-Za-z]+ { // General String
int ll = yyleng <(TNGBUFSIZE-1) ? yyleng:(TNGBUFSIZE-1);
strncpy(tnglval->str,yytext,ll);
tnglval->str[ll] = '\0';
return STRING;
}
[ \t]+ { // White Spaces
}
\r\n { // windows line feed
return '\n';
}
\\n { // fake line feed
return '\n';
}
\n { // linefeed
return '\n';
}
<<EOF>> { // eof
return EOF_;
}
. { // Else, return the char
return yytext[0];
}
%%
void tngDiscard(int doit)
{
if (tnglexx)
tnglexx->begin(DISCARD, doit);
}
void tngFlexLexer::begin(int which, int doit)
{
BEGIN which;
if (doit)
yyless(0);
}
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