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|
// Copyright (C) 1999-2017
// Smithsonian Astrophysical Observatory, Cambridge, MA, USA
// For conditions of distribution and use, see copyright notice in "copyright"
%pure-parser
%parse-param {FitsFile* envi}
%lex-param {enviFlexLexer* ll}
%parse-param {enviFlexLexer* ll}
%{
#define YYDEBUG 1
#define DISCARD_(x) {yyclearin; enviDiscard(x);}
#include "file.h"
#undef yyFlexLexer
#define yyFlexLexer enviFlexLexer
#include <FlexLexer.h>
extern int envilex(void*, enviFlexLexer*);
extern void envierror(FitsFile*, enviFlexLexer*, const char*);
extern void enviDiscard(int);
static int numWave;
static float wave[MAXWAVES];
%}
%union {
#define ENVIPARSERSIZE 1024
float real;
int integer;
char str[ENVIPARSERSIZE];
}
%type <real> numeric
// Basic
%token EOF_
%token <integer> INT
%token <real> REAL
%token <str> STRING
%token DEBUG_
%token ON_
%token OFF_
%token AVERAGE_
%token BAND_
%token BANDS_
%token BBL_
%token BIL_
%token BIP_
%token BSQ_
%token BYTE_
%token DATA_
%token DEFAULT_
%token DESCRIPTION_
%token ENVI_
%token FACTOR_
%token FRAME_
%token FILE_
%token FWHM_
%token GAIN_
%token HEADER_
%token INFO_
%token IGNORE_
%token INTERLEAVE_
%token LIMITS_
%token LINES_
%token MAJOR_
%token MAP_
%token MINOR_
%token NAMES_
%token OFFSET_
%token OFFSETS_
%token ORDER_
%token PIXEL_
%token PIXELS_
%token PLOT_
%token PROJECTION_
%token RANGE_
%token REFLECTANCE_
%token SAMPLES_
%token SCALE_
%token SCANNER_
%token SENSOR_
%token SIZE_
%token START_
%token STRETCH_
%token TITLES_
%token TYPE_
%token UNITS_
%token VALUE_
%token VALUES_
%token WAVELENGTH_
%%
//start : {yydebug=1;} commands
start : {envi->setpArch(FitsFile::BIG)} commands
commands: commands command terminator
| command terminator
;
command : /* empty */
| DEBUG_ debug
| comment
| ENVI_
| DESCRIPTION_ '=' liststr
| SAMPLES_ '=' INT {envi->setpWidth($3);}
| LINES_ '=' INT {envi->setpHeight($3);}
| BANDS_ '=' INT {envi->setpDepth($3);}
| HEADER_ OFFSET_ '=' INT {envi->setpSkip($4);}
| MAJOR_ FRAME_ OFFSETS_ '=' listint
| MINOR_ FRAME_ OFFSETS_ '=' listint
| FILE_ TYPE_ '=' {DISCARD_(1)} STRING
| DATA_ TYPE_ '=' bitpix
| INTERLEAVE_ '=' encoding
| SENSOR_ TYPE_ '=' {DISCARD_(1)} STRING
| BYTE_ ORDER_ '=' endian
| 'X' START_ '=' listint
| 'Y' START_ '=' listint
| MAP_ INFO_ '=' listmap
| PROJECTION_ INFO_ '=' liststr
| DEFAULT_ BANDS_ '=' listint
| WAVELENGTH_ UNITS_ '=' STRING
| REFLECTANCE_ SCALE_ FACTOR_ '=' numeric
| 'Z' PLOT_ RANGE_ '=' listnum
| 'Z' PLOT_ AVERAGE_ '=' listnum
| 'Z' PLOT_ TITLES_ '=' liststr
| DATA_ IGNORE_ VALUES_ '=' {DISCARD_(1)} STRING
| PIXEL_ SIZE_ '=' listnum
| BAND_ NAMES_ '=' liststr
| WAVELENGTH_ '=' {numWave=0;} listwave
| FWHM_ '=' liststr
| BBL_ '=' liststr
| DATA_ GAIN_ VALUES_ '=' listnum
| DATA_ OFFSET_ VALUES_ '=' listnum
| SCANNER_ LIMITS_ '(' PIXELS_ ')' '=' INT INT
;
comment : ';' {DISCARD_(1)} STRING
;
terminator: '\n'
| EOF_ {YYACCEPT;}
;
numeric : REAL {$$=$1;}
| INT {$$=$1;}
;
debug : ON_ {yydebug=1;}
| OFF_ {yydebug=0;}
;
bitpix : INT
{
switch($1) {
case 1:
{envi->setpBitpix(8);}
break;
case 2:
{envi->setpBitpix(16);}
break;
case 12:
{envi->setpBitpix(-16);}
break;
case 3:
{envi->setpBitpix(32);}
break;
case 14:
{envi->setpBitpix(64);}
break;
case 4:
{envi->setpBitpix(-32);}
break;
case 5:
{envi->setpBitpix(-64);}
break;
default:
break;
}
}
;
encoding : BSQ_ {envi->setpEncoding(FitsFile::BSQ);}
| BIP_ {envi->setpEncoding(FitsFile::BIP);}
| BIL_ {envi->setpEncoding(FitsFile::BIL);}
;
endian : INT
{
switch($1) {
case 0:
{envi->setpArch(FitsFile::LITTLE);}
break;
case 1:
{envi->setpArch(FitsFile::BIG);}
break;
}
}
;
liststr : '{' '}'
| '{' strings '}'
;
strings : strings STRING
| STRING
;
listnum : '{' numerics '}'
;
numerics: numerics ',' numeric
| numeric
;
listint : '{' ints '}'
;
ints : ints ',' INT
| INT
;
listmap : '{' STRING ',' INT ',' INT ',' numeric ',' numeric ',' numeric ',' numeric ',' INT listmapopt '}'
;
listmapopt : /* empty */
| ',' STRING ',' STRING
| ',' STRING
;
listwave: '{' '}'
{
envi->setpCRPIX3(1);
envi->setpCRVAL3(1);
envi->setpCDELT3(1);
}
| '{' aWaves '}'
{
if (numWave>=2) {
envi->setpCRPIX3(1);
envi->setpCRVAL3(wave[0]);
envi->setpCDELT3((wave[numWave-1]-wave[0])/(numWave-1));
}
else {
envi->setpCRPIX3(1);
envi->setpCRVAL3(1);
envi->setpCDELT3(1);
}
}
;
aWaves : aWaves ',' aWave
| aWaves ','
| aWave
;
aWave : numeric
{
if (numWave < MAXWAVES)
wave[numWave++] = $1;
}
;
%%
|
