forked from Unidata/netcdf-c
/
dap.y
273 lines (241 loc) · 7.67 KB
/
dap.y
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/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
See the COPYRIGHT file for more information. */
/*The lines down to DO NOT DELETE ... comment are specific to the C Parser.
They will be commennted out when building a java parser.
*/
%error-verbose
%pure-parser
%lex-param {DAPparsestate* parsestate}
%parse-param {DAPparsestate* parsestate}
%{
#include "config.h"
#include "dapparselex.h"
#include "dapy.h"
int dapdebug = 0;
%}
/*DO NOT DELETE THIS LINE*/
%token SCAN_ALIAS
%token SCAN_ARRAY
%token SCAN_ATTR
%token SCAN_BYTE
%token SCAN_CODE
%token SCAN_DATASET
%token SCAN_DATA
%token SCAN_ERROR
%token SCAN_FLOAT32
%token SCAN_FLOAT64
%token SCAN_GRID
%token SCAN_INT16
%token SCAN_INT32
%token SCAN_MAPS
%token SCAN_MESSAGE
%token SCAN_SEQUENCE
%token SCAN_STRING
%token SCAN_STRUCTURE
%token SCAN_UINT16
%token SCAN_UINT32
%token SCAN_URL
/* For errorbody */
%token SCAN_PTYPE
%token SCAN_PROG
/* Non-keywords */
%token WORD_WORD WORD_STRING
%start start
%%
start:
dataset datasetbody
| dataset datasetbody SCAN_DATA /* The SCAN_DATA indicates serialized data follows */
| attr attributebody
| err errorbody
| error {dap_unrecognizedresponse(parsestate); YYABORT;}
;
dataset:
SCAN_DATASET
{dap_tagparse(parsestate,SCAN_DATASET);}
;
attr:
SCAN_ATTR
{dap_tagparse(parsestate,SCAN_ATTR);}
;
err:
SCAN_ERROR
{dap_tagparse(parsestate,SCAN_ERROR);}
;
datasetbody:
'{' declarations '}' datasetname ';'
{dap_datasetbody(parsestate,$4,$2);}
;
declarations:
/* empty */ {$$=dap_declarations(parsestate,null,null);}
| declarations declaration {$$=dap_declarations(parsestate,$1,$2);}
;
/* 01/21/08: James says: no dimensions for grids or sequences */
/* 05/08/09: James says: no duplicate map names */
declaration:
base_type var_name array_decls ';'
{$$=dap_makebase(parsestate,$2,$1,$3);}
| SCAN_STRUCTURE '{' declarations '}' var_name array_decls ';'
{if(($$=dap_makestructure(parsestate,$5,$6,$3))==null) {YYABORT;}}
| SCAN_SEQUENCE '{' declarations '}' var_name ';'
{if(($$=dap_makesequence(parsestate,$5,$3))==null) {YYABORT;}}
| SCAN_GRID '{' SCAN_ARRAY ':' declaration SCAN_MAPS ':'
declarations '}' var_name ';'
{if(($$=dap_makegrid(parsestate,$10,$5,$8))==null) {YYABORT;}}
| error
{dapsemanticerror(parsestate,OC_EBADTYPE,"Unrecognized type"); YYABORT;}
;
base_type:
SCAN_BYTE {$$=(Object)SCAN_BYTE;}
| SCAN_INT16 {$$=(Object)SCAN_INT16;}
| SCAN_UINT16 {$$=(Object)SCAN_UINT16;}
| SCAN_INT32 {$$=(Object)SCAN_INT32;}
| SCAN_UINT32 {$$=(Object)SCAN_UINT32;}
| SCAN_FLOAT32 {$$=(Object)SCAN_FLOAT32;}
| SCAN_FLOAT64 {$$=(Object)SCAN_FLOAT64;}
| SCAN_URL {$$=(Object)SCAN_URL;}
| SCAN_STRING {$$=(Object)SCAN_STRING;}
;
array_decls:
/* empty */ {$$=dap_arraydecls(parsestate,null,null);}
| array_decls array_decl {$$=dap_arraydecls(parsestate,$1,$2);}
;
array_decl:
'[' WORD_WORD ']' {$$=dap_arraydecl(parsestate,null,$2);}
| '[' '=' WORD_WORD ']' {$$=dap_arraydecl(parsestate,null,$3);}
| '[' name '=' WORD_WORD ']' {$$=dap_arraydecl(parsestate,$2,$4);}
| error
{dapsemanticerror(parsestate,OC_EDIMSIZE,"Illegal dimension declaration"); YYABORT;}
;
datasetname:
var_name {$$=$1;}
| error
{dapsemanticerror(parsestate,OC_EDDS,"Illegal dataset declaration"); YYABORT;}
;
var_name: name {$$=$1;};
attributebody:
'{' attr_list '}' {dap_attributebody(parsestate,$2);}
| error
{dapsemanticerror(parsestate,OC_EDAS,"Illegal DAS body"); YYABORT;}
;
attr_list:
/* empty */ {$$=dap_attrlist(parsestate,null,null);}
| attr_list attribute {$$=dap_attrlist(parsestate,$1,$2);}
;
attribute:
alias ';' {$$=null;} /* ignored */
| SCAN_BYTE name bytes ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_BYTE);}
| SCAN_INT16 name int16 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_INT16);}
| SCAN_UINT16 name uint16 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_UINT16);}
| SCAN_INT32 name int32 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_INT32);}
| SCAN_UINT32 name uint32 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_UINT32);}
| SCAN_FLOAT32 name float32 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_FLOAT32);}
| SCAN_FLOAT64 name float64 ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_FLOAT64);}
| SCAN_STRING name strs ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_STRING);}
| SCAN_URL name urls ';'
{$$=dap_attribute(parsestate,$2,$3,(Object)SCAN_URL);}
| name '{' attr_list '}' {$$=dap_attrset(parsestate,$1,$3);}
| error
{dapsemanticerror(parsestate,OC_EDAS,"Illegal attribute"); YYABORT;}
;
bytes:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_BYTE);}
| bytes ',' WORD_WORD
{$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_BYTE);}
;
int16:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_INT16);}
| int16 ',' WORD_WORD
{$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_INT16);}
;
uint16:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_UINT16);}
| uint16 ',' WORD_WORD
{$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_UINT16);}
;
int32:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_INT32);}
| int32 ',' WORD_WORD
{$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_INT32);}
;
uint32:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_UINT32);}
| uint32 ',' WORD_WORD {$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_UINT32);}
;
float32:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_FLOAT32);}
| float32 ',' WORD_WORD {$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_FLOAT32);}
;
float64:
WORD_WORD {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_FLOAT64);}
| float64 ',' WORD_WORD {$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_FLOAT64);}
;
strs:
str_or_id {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_STRING);}
| strs ',' str_or_id {$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_STRING);}
;
urls:
url {$$=dap_attrvalue(parsestate,null,$1,(Object)SCAN_URL);}
| urls ',' url {$$=dap_attrvalue(parsestate,$1,$3,(Object)SCAN_URL);}
;
url:
str_or_id {$$=$1;}
;
str_or_id:
name {$$=$1;}
| WORD_STRING {$$=$1;}
;
/* Not used
float_or_int:
WORD_INT {$$=$1;}
| WORD_DOUBLE {$$=$1;}
;
*/
alias:
SCAN_ALIAS WORD_WORD WORD_WORD {$$=$2; $$=$3; $$=null;} /* Alias is ignored */
;
errorbody:
'{' errorcode errormsg errorptype errorprog '}' ';'
{dap_errorbody(parsestate,$2,$3,$4,$5);}
;
errorcode: /*empty*/ {$$=null;} | SCAN_CODE '=' WORD_WORD ';' {$$=$3;}
errormsg: /*empty*/ {$$=null;} | SCAN_MESSAGE '=' WORD_STRING ';' {$$=$3;}
errorptype: /*empty*/ {$$=null;} | SCAN_PTYPE '=' WORD_WORD ';' {$$=$3;}
errorprog : /*empty*/ {$$=null;} | SCAN_PROG '=' WORD_WORD ';' {$$=$3;}
/* Note that variable names like "byte" are legal names
and are disambiguated by context
*/
name:
WORD_WORD {$$=dapdecode(parsestate->lexstate,$1);}
| SCAN_ALIAS {$$=strdup($1);}
| SCAN_ARRAY {$$=strdup($1);}
| SCAN_ATTR {$$=strdup($1);}
| SCAN_BYTE {$$=strdup($1);}
| SCAN_DATASET {$$=strdup($1);}
| SCAN_DATA {$$=strdup($1);}
| SCAN_ERROR {$$=strdup($1);}
| SCAN_FLOAT32 {$$=strdup($1);}
| SCAN_FLOAT64 {$$=strdup($1);}
| SCAN_GRID {$$=strdup($1);}
| SCAN_INT16 {$$=strdup($1);}
| SCAN_INT32 {$$=strdup($1);}
| SCAN_MAPS {$$=strdup($1);}
| SCAN_SEQUENCE {$$=strdup($1);}
| SCAN_STRING {$$=strdup($1);}
| SCAN_STRUCTURE {$$=strdup($1);}
| SCAN_UINT16 {$$=strdup($1);}
| SCAN_UINT32 {$$=strdup($1);}
| SCAN_URL {$$=strdup($1);}
| SCAN_CODE {$$=strdup($1);}
| SCAN_MESSAGE {$$=strdup($1);}
| SCAN_PROG {$$=strdup($1);}
| SCAN_PTYPE {$$=strdup($1);}
;
%%