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/* Copyright (C) 1999-2018
* 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 "parser.H"
extern YYSTYPE* fflval;
extern ffFlexLexer* fflexx;
extern char ff_filter[];
#define RET(x) {strcat(ff_filter,yytext);return x;}
#define CLEARFILTER {ff_filter[0]='\0';}
%}
%x EXT
%x FILTER
%x ARRAY
/* rules */
%%
[^[\]\t]+ { // File
strcpy(fflval->str,yytext);
return STRING;
}
\[ { // first bracket
BEGIN EXT;
CLEARFILTER
return yytext[0];
}
[ \t]+ { // White Spaces
}
. { // Else, return the char
return yytext[0];
}
<EXT>{
arch {RET(ARCH_)}
array {RET(ARRAY_)}
big {RET(BIG_)}
bigendian {RET(BIGENDIAN_)}
bin {RET(BIN_)}
binkey {RET(BINKEY_)}
bincol {RET(BINCOL_)}
bitpix {RET(BITPIX_)}
col {RET(COL_)}
dim {RET(DIM_)}
dims {RET(DIMS_)}
ecliptic {RET(ECLIPTIC_)}
endian {RET(ENDIAN_)}
equatorial {RET(EQUATORIAL_)}
galactic {RET(GALACTIC_)}
key {RET(KEY_)}
layout {RET(LAYOUT_)}
little {RET(LITTLE_)}
littleendian {RET(LITTLEENDIAN_)}
nested {RET(NESTED_)}
north {RET(NORTH_)}
order {RET(ORDER_)}
quad {RET(QUAD_)}
ring {RET(RING_)}
skip {RET(SKIP_)}
south {RET(SOUTH_)}
system {RET(SYSTEM_)}
unknown {RET(UNKNOWN_)}
xdim {RET(XDIM_)}
ydim {RET(YDIM_)}
zdim {RET(ZDIM_)}
[-+]?[0-9]+ { // Integer
fflval->integer = atoi(yytext);
RET(INT)
}
[0-9A-Za-z_.-]+ { // Extn/Col Name
strcpy(fflval->str,yytext);
RET(STRING)
}
\[ { // bracket
CLEARFILTER
return yytext[0];
}
, { // comma
CLEARFILTER
return yytext[0];
}
[ \t]+ { // White Spaces
strcat(ff_filter,yytext);
}
. { // Else, return the char
strcat(ff_filter,yytext);
return yytext[0];
}
}
<FILTER>.* { // rest of Filter
strcpy(fflval->str,yytext);
fflval->str[yyleng-1] = '\0'; // Remove the ']'
strcat(ff_filter,fflval->str);
return STRING;
}
<ARRAY>{
[-+]?[0-9]+ { // Integer
fflval->integer = atoi(yytext);
return INT;
}
. { // Else, return the char
return yytext[0];
}
}
%%
void ffFilter(int doit)
{
if (fflexx)
fflexx->begin(FILTER, doit);
}
void ffArray(int doit)
{
if (fflexx)
fflexx->begin(ARRAY, doit);
}
void ffFlexLexer::begin(int which, int doit)
{
BEGIN which;
if (doit)
yyless(0);
}
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