%%% -*- mode: erlang -*- ------------------------------------------------------------------
%%% File: erlydtl_parser.erl
%%% @author Roberto Saccon <rsaccon@gmail.com> [http://rsaccon.com]
%%% @author Evan Miller <emmiller@gmail.com>
%%% @copyright 2008 Roberto Saccon, Evan Miller
%%% @doc Template language grammar
%%% @reference See <a href="http://erlydtl.googlecode.com" target="_top">http://erlydtl.googlecode.com</a> for more information
%%% @end
%%%
%%% The MIT License
%%%
%%% Copyright (c) 2007 Roberto Saccon, Evan Miller
%%%
%%% Permission is hereby granted, free of charge, to any person obtaining a copy
%%% of this software and associated documentation files (the "Software"), to deal
%%% in the Software without restriction, including without limitation the rights
%%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%%% copies of the Software, and to permit persons to whom the Software is
%%% furnished to do so, subject to the following conditions:
%%%
%%% The above copyright notice and this permission notice shall be included in
%%% all copies or substantial portions of the Software.
%%%
%%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
%%% THE SOFTWARE.
%%%
%%% @since 2007-11-11 by Roberto Saccon, Evan Miller
%%%-------------------------------------------------------------------
Nonterminals
Elements
Literal
ValueBraced
Value
Values
Variable
Filter
FilterArg
AutoEscapeBlock
AutoEscapeBraced
EndAutoEscapeBraced
BlockBlock
BlockBraced
EndBlockBraced
CommentTag
CommentBlock
CommentBraced
EndCommentBraced
CycleTag
CycleNames
CycleNamesCompat
ExtendsTag
IncludeTag
NowTag
FirstofTag
FilterBlock
FilterBraced
EndFilterBraced
Filters
ForBlock
ForBraced
EmptyBraced
EndForBraced
ForExpression
ForGroup
IfBlock
IfBraced
ElifBlock
ElifBraced
IfExpression
ElseBraced
EndIfBraced
IfChangedBlock
IfChangedBraced
EndIfChangedBraced
IfEqualBlock
IfEqualBraced
IfEqualExpression
EndIfEqualBraced
IfNotEqualBlock
IfNotEqualBraced
IfNotEqualExpression
EndIfNotEqualBraced
CustomTag
CustomArgs
Args
RegroupTag
SpacelessBlock
SSITag
BlockTransBlock
BlockTransContent
TransTag
TransArgs
TransText
TemplatetagTag
Templatetag
WidthRatioTag
WithBlock
WithBraced
EndWithBraced
CallTag
CallWithTag
LoadTag
LoadArgs
Unot.
Terminals
and_keyword
as_keyword
autoescape_keyword
block_keyword
blocktrans_keyword
by_keyword
call_keyword
close_tag
close_var
comment_tag
comment_keyword
context_keyword
cycle_keyword
elif_keyword
else_keyword
empty_keyword
endautoescape_keyword
endblock_keyword
endblocktrans_keyword
endcomment_keyword
endfilter_keyword
endfor_keyword
endif_keyword
endifchanged_keyword
endifequal_keyword
endifnotequal_keyword
endregroup_keyword
endspaceless_keyword
endwith_keyword
extends_keyword
filter_keyword
firstof_keyword
for_keyword
from_keyword
identifier
if_keyword
ifchanged_keyword
ifequal_keyword
ifnotequal_keyword
in_keyword
include_keyword
load_keyword
noop_keyword
not_keyword
now_keyword
number_literal
only_keyword
or_keyword
open_tag
open_var
parsed_keyword
regroup_keyword
reversed_keyword
spaceless_keyword
ssi_keyword
string_literal
string
templatetag_keyword
openblock_keyword
closeblock_keyword
openvariable_keyword
closevariable_keyword
openbrace_keyword
closebrace_keyword
opencomment_keyword
closecomment_keyword
trans_keyword
widthratio_keyword
with_keyword
',' '|' '=' ':' '.'
'==' '!='
'>=' '<='
'>' '<'
'(' ')'
'_'.
Rootsymbol
Elements.
%% Operator precedences for the E non terminal
Left 100 or_keyword.
Left 110 and_keyword.
Nonassoc 300 '==' '!=' '>=' '<=' '>' '<'.
Unary 600 Unot.
Elements -> '$empty' : [].
Elements -> Elements string : '$1' ++ ['$2'].
Elements -> Elements AutoEscapeBlock : '$1' ++ ['$2'].
Elements -> Elements BlockBlock : '$1' ++ ['$2'].
Elements -> Elements BlockTransBlock : '$1' ++ ['$2'].
Elements -> Elements CallTag : '$1' ++ ['$2'].
Elements -> Elements CallWithTag : '$1' ++ ['$2'].
Elements -> Elements CommentBlock : '$1' ++ ['$2'].
Elements -> Elements CommentTag : '$1' ++ ['$2'].
Elements -> Elements CustomTag : '$1' ++ ['$2'].
Elements -> Elements CycleTag : '$1' ++ ['$2'].
Elements -> Elements ExtendsTag : '$1' ++ ['$2'].
Elements -> Elements FilterBlock : '$1' ++ ['$2'].
Elements -> Elements FirstofTag : '$1' ++ ['$2'].
Elements -> Elements ForBlock : '$1' ++ ['$2'].
Elements -> Elements IfBlock : '$1' ++ ['$2'].
Elements -> Elements IfEqualBlock : '$1' ++ ['$2'].
Elements -> Elements IfNotEqualBlock : '$1' ++ ['$2'].
Elements -> Elements IfChangedBlock : '$1' ++ ['$2'].
Elements -> Elements IncludeTag : '$1' ++ ['$2'].
Elements -> Elements LoadTag : '$1' ++ ['$2'].
Elements -> Elements NowTag : '$1' ++ ['$2'].
Elements -> Elements RegroupTag : '$1' ++ ['$2'].
Elements -> Elements SpacelessBlock : '$1' ++ ['$2'].
Elements -> Elements SSITag : '$1' ++ ['$2'].
Elements -> Elements TemplatetagTag : '$1' ++ ['$2'].
Elements -> Elements TransTag : '$1' ++ ['$2'].
Elements -> Elements ValueBraced : '$1' ++ ['$2'].
Elements -> Elements WidthRatioTag : '$1' ++ ['$2'].
Elements -> Elements WithBlock : '$1' ++ ['$2'].
ValueBraced -> open_var Value close_var : '$2'.
Value -> Value '|' Filter : {apply_filter, '$1', '$3'}.
Value -> '_' '(' Value ')' : {trans, '$3'}.
Value -> Variable : '$1'.
Value -> Literal : '$1'.
Values -> Value : ['$1'].
Values -> Value Values : ['$1'|'$2'].
Filter -> identifier FilterArg : {'$1', '$2'}.
FilterArg -> '$empty' : [].
FilterArg -> ':' Variable : ['$2'].
FilterArg -> ':' Literal : ['$2'].
Variable -> identifier : {variable, '$1'}.
Variable -> Variable '.' identifier : {attribute, {'$3', '$1'}}.
Variable -> Variable '.' Literal : {attribute, {'$3', '$1'}}.
Literal -> string_literal : '$1'.
Literal -> number_literal : '$1'.
AutoEscapeBlock -> AutoEscapeBraced Elements EndAutoEscapeBraced : {autoescape, '$1', '$2'}.
AutoEscapeBraced -> open_tag autoescape_keyword identifier close_tag : '$3'.
EndAutoEscapeBraced -> open_tag endautoescape_keyword close_tag.
BlockBlock -> BlockBraced Elements EndBlockBraced : {block, '$1', '$2'}.
BlockBraced -> open_tag block_keyword identifier close_tag : '$3'.
EndBlockBraced -> open_tag endblock_keyword close_tag.
ExtendsTag -> open_tag extends_keyword string_literal close_tag : {extends, '$3'}.
IncludeTag -> open_tag include_keyword string_literal close_tag : {include, '$3', []}.
IncludeTag -> open_tag include_keyword string_literal with_keyword Args close_tag : {include, '$3', '$5'}.
IncludeTag -> open_tag include_keyword string_literal only_keyword close_tag : {include_only, '$3', []}.
IncludeTag -> open_tag include_keyword string_literal with_keyword Args only_keyword close_tag : {include_only, '$3', '$5'}.
LoadTag -> open_tag load_keyword LoadArgs close_tag : {load_libs, '$3'}.
LoadTag -> open_tag load_keyword LoadArgs from_keyword identifier close_tag : {load_from_lib, '$3', '$5'}.
LoadArgs -> '$empty' : [].
LoadArgs -> identifier LoadArgs : ['$1'|'$2'].
NowTag -> open_tag now_keyword string_literal close_tag : {date, now, '$3'}.
CommentBlock -> CommentBraced Elements EndCommentBraced : {comment, '$2'}.
CommentBraced -> open_tag comment_keyword close_tag.
EndCommentBraced -> open_tag endcomment_keyword close_tag.
CommentTag -> comment_tag : '$1'.
CycleTag -> open_tag cycle_keyword CycleNamesCompat close_tag : {cycle_compat, '$3'}.
CycleTag -> open_tag cycle_keyword CycleNames close_tag : {cycle, '$3'}.
CycleNames -> Value : ['$1'].
CycleNames -> CycleNames Value : '$1' ++ ['$2'].
CycleNamesCompat -> identifier ',' : ['$1'].
CycleNamesCompat -> CycleNamesCompat identifier ',' : '$1' ++ ['$2'].
CycleNamesCompat -> CycleNamesCompat identifier : '$1' ++ ['$2'].
FilterBlock -> FilterBraced Elements EndFilterBraced : {filter, '$1', '$2'}.
FilterBraced -> open_tag filter_keyword Filters close_tag : '$3'.
EndFilterBraced -> open_tag endfilter_keyword close_tag.
Filters -> Filter : ['$1'].
Filters -> Filter '|' Filters : ['$1'|'$3'].
FirstofTag -> open_tag firstof_keyword Values close_tag : {firstof, '$3'}.
ForBlock -> ForBraced Elements EndForBraced : {for, '$1', '$2'}.
ForBlock -> ForBraced Elements EmptyBraced Elements EndForBraced : {for, '$1', '$2', '$4'}.
EmptyBraced -> open_tag empty_keyword close_tag.
ForBraced -> open_tag for_keyword ForExpression close_tag : '$3'.
EndForBraced -> open_tag endfor_keyword close_tag.
ForExpression -> ForGroup in_keyword Value : {'in', '$1', '$3', false}.
ForExpression -> ForGroup in_keyword Value reversed_keyword : {'in', '$1', '$3', true}.
ForGroup -> identifier : ['$1'].
ForGroup -> ForGroup ',' identifier : '$1' ++ ['$3'].
IfBlock -> IfBraced Elements ElseBraced Elements EndIfBraced : {'ifelse', '$1', '$2', '$4'}.
IfBlock -> IfBraced Elements EndIfBraced : {'if', '$1', '$2'}.
IfBlock -> IfBraced Elements ElifBlock : {'if', '$1', '$2', ['$3']}.
ElifBlock -> ElifBraced Elements ElseBraced Elements EndIfBraced : {'ifelse', '$1', '$2', '$4'}.
ElifBlock -> ElifBraced Elements EndIfBraced : {'if', '$1', '$2'}.
ElifBlock -> ElifBraced Elements ElifBlock : {'if', '$1', '$2', ['$3']}.
IfBraced -> open_tag if_keyword IfExpression close_tag : '$3'.
ElifBraced -> open_tag elif_keyword IfExpression close_tag : '$3'.
IfExpression -> Value in_keyword Value : {'expr', "in", '$1', '$3'}.
IfExpression -> Value not_keyword in_keyword Value : {'expr', "not", {'expr', "in", '$1', '$4'}}.
IfExpression -> Value '==' Value : {'expr', "eq", '$1', '$3'}.
IfExpression -> Value '!=' Value : {'expr', "ne", '$1', '$3'}.
IfExpression -> Value '>=' Value : {'expr', "ge", '$1', '$3'}.
IfExpression -> Value '<=' Value : {'expr', "le", '$1', '$3'}.
IfExpression -> Value '>' Value : {'expr', "gt", '$1', '$3'}.
IfExpression -> Value '<' Value : {'expr', "lt", '$1', '$3'}.
IfExpression -> '(' IfExpression ')' : '$2'.
IfExpression -> Unot : '$1'.
IfExpression -> IfExpression or_keyword IfExpression : {'expr', "or", '$1', '$3'}.
IfExpression -> IfExpression and_keyword IfExpression : {'expr', "and", '$1', '$3'}.
IfExpression -> Value : '$1'.
Unot -> not_keyword IfExpression : {expr, "not", '$2'}.
ElseBraced -> open_tag else_keyword close_tag.
EndIfBraced -> open_tag endif_keyword close_tag.
IfChangedBlock -> IfChangedBraced Elements ElseBraced Elements EndIfChangedBraced : {ifchangedelse, '$1', '$2', '$4'}.
IfChangedBlock -> IfChangedBraced Elements EndIfChangedBraced : {ifchanged, '$1', '$2'}.
IfChangedBraced -> open_tag ifchanged_keyword close_tag.
IfChangedBraced -> open_tag ifchanged_keyword Values close_tag : '$3'.
EndIfChangedBraced -> open_tag endifchanged_keyword close_tag.
IfEqualBlock -> IfEqualBraced Elements ElseBraced Elements EndIfEqualBraced : {ifequalelse, '$1', '$2', '$4'}.
IfEqualBlock -> IfEqualBraced Elements EndIfEqualBraced : {ifequal, '$1', '$2'}.
IfEqualBraced -> open_tag ifequal_keyword IfEqualExpression Value close_tag : ['$3', '$4'].
IfEqualExpression -> Value : '$1'.
EndIfEqualBraced -> open_tag endifequal_keyword close_tag.
IfNotEqualBlock -> IfNotEqualBraced Elements ElseBraced Elements EndIfNotEqualBraced : {ifnotequalelse, '$1', '$2', '$4'}.
IfNotEqualBlock -> IfNotEqualBraced Elements EndIfNotEqualBraced : {ifnotequal, '$1', '$2'}.
IfNotEqualBraced -> open_tag ifnotequal_keyword IfNotEqualExpression Value close_tag : ['$3', '$4'].
IfNotEqualExpression -> Value : '$1'.
EndIfNotEqualBraced -> open_tag endifnotequal_keyword close_tag.
RegroupTag -> open_tag regroup_keyword Value by_keyword Value as_keyword identifier close_tag : {regroup, {'$3', '$5', '$7'}}.
RegroupTag -> open_tag endregroup_keyword close_tag : end_regroup.
SpacelessBlock -> open_tag spaceless_keyword close_tag Elements open_tag endspaceless_keyword close_tag : {spaceless, '$4'}.
SSITag -> open_tag ssi_keyword Value close_tag : {ssi, '$3'}.
SSITag -> open_tag ssi_keyword string_literal parsed_keyword close_tag : {ssi_parsed, '$3'}.
BlockTransBlock -> open_tag blocktrans_keyword close_tag BlockTransContent open_tag endblocktrans_keyword close_tag : {blocktrans, [], '$4'}.
BlockTransBlock -> open_tag blocktrans_keyword with_keyword Args close_tag BlockTransContent open_tag endblocktrans_keyword close_tag : {blocktrans, '$4', '$6'}.
BlockTransContent -> '$empty' : [].
BlockTransContent -> BlockTransContent open_var identifier close_var : '$1' ++ [{variable, '$3'}].
BlockTransContent -> BlockTransContent string : '$1' ++ ['$2'].
%% TODO: {% plural %}
TemplatetagTag -> open_tag templatetag_keyword Templatetag close_tag : {templatetag, '$3'}.
Templatetag -> openblock_keyword : '$1'.
Templatetag -> closeblock_keyword : '$1'.
Templatetag -> openvariable_keyword : '$1'.
Templatetag -> closevariable_keyword : '$1'.
Templatetag -> openbrace_keyword : '$1'.
Templatetag -> closebrace_keyword : '$1'.
Templatetag -> opencomment_keyword : '$1'.
Templatetag -> closecomment_keyword : '$1'.
TransTag -> open_tag trans_keyword TransArgs close_tag : '$3'.
TransTag -> open_tag trans_keyword TransArgs as_keyword identifier close_tag : {scope_as, '$5', ['$3']}.
TransTag -> open_tag trans_keyword TransArgs noop_keyword close_tag : element(2, '$3').
TransArgs -> TransText : {trans, '$1'}.
TransArgs -> TransText context_keyword string_literal: {trans, '$1', '$3'}.
TransText -> string_literal : '$1'.
TransText -> Variable : '$1'.
WidthRatioTag -> open_tag widthratio_keyword Value Value number_literal close_tag : {widthratio, '$3', '$4', '$5'}.
WithBlock -> WithBraced Elements EndWithBraced : {with, '$1', '$2'}.
WithBraced -> open_tag with_keyword Args close_tag : '$3'.
EndWithBraced -> open_tag endwith_keyword close_tag.
CustomTag -> open_tag identifier CustomArgs close_tag : {tag, '$2', '$3'}.
CustomArgs -> '$empty' : [].
CustomArgs -> identifier '=' Value CustomArgs : [{'$1', '$3'}|'$4'].
CustomArgs -> Value CustomArgs : ['$1'|'$2'].
Args -> '$empty' : [].
Args -> Args identifier '=' Value : '$1' ++ [{'$2', '$4'}].
CallTag -> open_tag call_keyword identifier close_tag : {call, '$3'}.
CallWithTag -> open_tag call_keyword identifier with_keyword Value close_tag : {call, '$3', '$5'}.
Erlang code.
%% vim: syntax=erlang