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Copy pathflexy-to-twig.jison
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flexy-to-twig.jison
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/* lexical grammar */
%lex
%options case-insensitive
digit [0-9]
num ('-')?{digit}+(\.{digit}+)?([E|e][\+\-]?{digit}+)?
letter [a-zA-Z]
letter_ [a-zA-Z_]
id {letter_}({letter_}|{digit})*
param_name {letter_}({letter_}|{digit}|\-)*
tag_name {letter_}({letter_}|\-|{digit})*
attr_name {letter_}({letter_}|\-|{digit})*
lbrace '{'
rbrace '}'
lcomment '{*'
rcomment '*}'
lparen '('
rparen ')'
lt '<'
gt '>'
modifier ('striptags'|'h'|'r'|'u'|'s'|'b'|'nl2br')
dot '.'
comma ','
colon ':'
double_colon '::'
percent '%'
hash '#'
array '_ARRAY_'
caret '^'
negation '!'
and '&'
or '|'
equals '='
less_than '<'
greater_than '>'
single_quote '\''
double_quote '"'
quote ('\''|'"')
slash '/'
delim [ \t\n\r\f\b]
nondelim [^ \t\n\r\f\b]
whitespace {delim}+
any (.|{delim})*?
other (.|{delim})+?
doctype '<!DOCTYPE'[^>]+'>'
html_comment_start '<!--'
html_comment_end '-->'
cdata_start '<![CDATA['
cdata_end ']]>'
if 'if'
elseif 'elseif'
flexy_end '{end:}'
flexy_else '{else:}'
foreach 'foreach'
if_attr 'IF'
selected_attr 'selected'
checked_attr 'checked'
disabled_attr 'disabled'
foreach_attr 'FOREACH'
widget_tag 'widget'
list_tag 'list'
%{
this.trimYytext = function () {
this.yytext = this.yytext.substr(1, yytext.length - 2);
};
this.yield = function (token) {
//console.log('[' + token + '] ' + JSON.stringify(yytext) + ' <' + this.topState() + '>');
return token;
};
%}
%x html html_comment cdata flexy_exp flexy_attr_exp flexy_bare_attr_exp flexy_string flexy_comment open_tag close_tag attrs params param_sq param_dq param_unq attrs_delim squoted_attr dquoted_attr php
%%
<html>{doctype} return this.yield('TEXT');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr,param_sq,param_dq,param_unq>{lcomment} this.begin('flexy_comment');
<attrs>{lcomment} this.replaceState('attrs_delim'); this.begin('flexy_comment');
<html><<EOF>> return this.yield('EOF');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr>{lbrace}{elseif}{colon} this.begin('flexy_exp'); return this.yield('ELSEIF');
<attrs>{lbrace}{elseif}{colon} this.begin('attrs_delim'); this.begin('flexy_exp'); return this.yield('ELSEIF');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr>{flexy_else} return this.yield('ELSE');
<attrs>{flexy_else} this.begin('attrs_delim'); return this.yield('ELSE');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr>{flexy_end} return this.yield('END');
<attrs>{flexy_end} this.begin('attrs_delim'); return this.yield('END');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr,param_sq,param_dq,param_unq>{lbrace}/{id} this.begin('flexy_exp'); return this.yield('LBRACE');
<attrs>{lbrace}/{id} this.begin('attrs_delim'); this.begin('flexy_exp'); return this.yield('LBRACE');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr,param_sq,param_dq,param_unq>{lbrace}/{digit} this.begin('flexy_exp'); return this.yield('LBRACE');
<attrs>{lbrace}/{digit} this.begin('attrs_delim'); this.begin('flexy_exp'); return this.yield('LBRACE');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr,param_sq,param_dq,param_unq>{lbrace}/{hash} this.begin('flexy_exp'); return this.yield('LBRACE');
<html,cdata,attrs_delim,squoted_attr,dquoted_attr,param_sq,param_dq,param_unq>{lbrace}/{percent} this.begin('flexy_exp'); return this.yield('LBRACE');
<attrs>{lbrace}/{hash} this.begin('attrs_delim'); this.begin('flexy_exp'); return this.yield('LBRACE');
<html>{lt}/{tag_name} this.begin('open_tag'); return this.yield('LT');
<html>{lt}/{slash} this.begin('close_tag'); return this.yield('LT');
<html>{gt} return this.yield('GT');
<html>{html_comment_start} this.begin('html_comment'); return this.yield('HTML_COMMENT_START');
<html>{html_comment_end} return this.yield('HTML_COMMENT_END');
<html>{cdata_start} this.begin('cdata'); return this.yield('CDATA_START');
<html>{cdata_end} return this.yield('CDATA_END');
<cdata>/{cdata_end} this.popState();
<html,cdata>{other} return this.yield('TEXT');
<html_comment>/{html_comment_end} this.popState();
<html_comment>{other} return this.yield('TEXT');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{if}{colon} return this.yield('IF');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{foreach}{colon} return this.yield('FOREACH');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{array} return this.yield('ARRAY');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{id} return this.yield('ID');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{num} return this.yield('NUMBER');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{dot} return this.yield('DOT');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{lparen} return this.yield('LPAREN');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{rparen} return this.yield('RPAREN');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{comma} return this.yield('COMMA');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{negation} return this.yield('NEGATION');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{and} return this.yield('AND');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{or} return this.yield('OR');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{equals} return this.yield('EQUALS');
<flexy_exp,flexy_attr_exp>{less_than} return this.yield('LESS_THAN');
<flexy_exp,flexy_attr_exp>{greater_than} return this.yield('GREATER_THAN');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{hash}{hash} yytext = ''; return this.yield('STRING');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{hash} this.begin('flexy_string');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{percent} this.begin('php'); return 'PHP_START';
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{colon}{modifier} yytext = yytext.substr(1); return this.yield('MODIFIER');
<flexy_exp,flexy_attr_exp,flexy_bare_attr_exp>{caret} return this.yield('CARET');
<flexy_exp>{rbrace} this.popState(); return this.yield('RBRACE');
<flexy_attr_exp>({rbrace}|{quote})+/({delim}|{gt}|({slash}{gt})|{lbrace}) this.popState(); return this.yield('FLEXY_ATTR_EXP_END');
<flexy_bare_attr_exp>/({delim}|{gt}|({slash}{gt})|{lbrace}) this.popState(); return this.yield('FLEXY_ATTR_EXP_END');
<flexy_exp,flexy_attr_exp>{delim}+ // skip whitespace
<flexy_string>{hash} this.popState();
<flexy_string>{any}/{hash} return this.yield('STRING');
<php>{percent} this.popState(); return 'PHP_END';
<php>{double_colon} return this.yield('DOUBLE_COLON');
<php>{other} return this.yield('TEXT');
<flexy_comment>{rcomment} this.popState();
<flexy_comment>{any}/{rcomment} return this.yield('FLEXY_COMMENT');
<open_tag>{widget_tag} this.begin('params'); return this.yield('WIDGET_TAG');
<open_tag>{list_tag} this.begin('params'); return this.yield('LIST_TAG');
<open_tag>{tag_name} this.begin('attrs'); return this.yield('TAG');
<open_tag>/{gt} this.popState();
<open_tag>{slash}{delim}*/{gt} this.popState(); return this.yield('SLASH');
<params>{delim}+ // skip whitespace
<params>{foreach_attr}{equals}({quote}|{lbrace})+ this.begin('flexy_attr_exp'); return this.yield('FOREACH_ATTR');
<params>{if_attr}{equals}({quote}|{lbrace})+ this.begin('flexy_attr_exp'); return this.yield('IF_ATTR');
<params>{param_name}{equals}{single_quote} yytext = yytext.substr(0, yytext.length-2); this.begin('param_sq'); return this.yield('PARAM');
<params>{param_name}{equals}{double_quote} yytext = yytext.substr(0, yytext.length-2); this.begin('param_dq'); return this.yield('PARAM');
<params>{param_name}{equals} yytext = yytext.substr(0, yytext.length-1); this.begin('param_unq'); return this.yield('PARAM');
<params>{param_name} return this.yield('PARAM_WO_VALUE');
<params>/({slash}?{delim}*{gt}) this.popState();
<param_sq>{single_quote} this.popState();
<param_sq>{other} return this.yield('TEXT');
<param_dq>{double_quote} this.popState();
<param_dq>{other} return this.yield('TEXT');
<param_unq>{delim} this.popState();
<param_unq>/({slash}?{delim}*{gt}) this.popState();
<param_unq>{nondelim} return this.yield('TEXT');
<close_tag>{slash} return this.yield('SLASH');
<close_tag>{tag_name} return this.yield('TAG');
<close_tag>{delim}*/{gt} this.popState();
<attrs_delim>{if_attr}{equals}({quote}|{lbrace})+ this.begin('flexy_attr_exp'); return this.yield('IF_ATTR');
<attrs_delim>{if_attr}{equals} this.begin('flexy_bare_attr_exp'); return this.yield('IF_ATTR');
<attrs_delim>{selected_attr}{equals}{quote}?{lbrace}+ this.begin('flexy_attr_exp'); return this.yield('SELECTED_ATTR');
<attrs_delim>{checked_attr}{equals}{quote}?{lbrace}+ this.begin('flexy_attr_exp'); return this.yield('CHECKED_ATTR');
<attrs_delim>{disabled_attr}{equals}{quote}?{lbrace}+ this.begin('flexy_attr_exp'); return this.yield('DISABLED_ATTR');
<attrs_delim>{foreach_attr}{equals}({quote}|{lbrace})+ this.begin('flexy_attr_exp'); return this.yield('FOREACH_ATTR');
<attrs_delim>{foreach_attr}{equals} this.begin('flexy_bare_attr_exp'); return this.yield('FOREACH_ATTR');
<attrs,attrs_delim>{equals}{double_quote} this.begin('dquoted_attr'); return this.yield('TEXT');
<attrs,attrs_delim>{equals}{single_quote} this.begin('squoted_attr'); return this.yield('TEXT');
<attrs,attrs_delim>/({slash}{delim}*{gt}) this.popState();
<attrs,attrs_delim>/{gt} this.popState();
<attrs>{delim} this.begin('attrs_delim'); return this.yield('TEXT');
<attrs>{other} return this.yield('TEXT');
<attrs_delim>{delim} return this.yield('TEXT');
<attrs_delim>{other} this.popState(); return this.yield('TEXT');
<squoted_attr>/{single_quote} this.popState();
<squoted_attr>{other} return this.yield('TEXT');
<dquoted_attr>/{double_quote} this.popState();
<dquoted_attr>{other} return this.yield('TEXT');
<INITIAL> this.begin('html');
/lex
%right HTML_TEXT TEXT
%ebnf
%start prog
%% /* language grammar */
prog
: EOF
{ $$ = []; }
| stmts EOF
{ $twig = renderTwig($stmts); process && process.stdout && process.stdout.write($twig); return $twig; }
;
stmts
: stmts stmt
{ $$ = [].concat($stmts, $stmt); }
| stmt
{ $$ = [$stmt]; }
;
stmt
: html
| html_comment
| cdata
| flexy
;
html_comment
: HTML_COMMENT_START text HTML_COMMENT_END
{ $$ = { type: 'HTML_COMMENT', value: $text }; }
;
html
: tag
| text %prec HTML_TEXT
{ $$ = { type: 'TEXT', value: $text }; }
;
cdata
: CDATA_START cdata_content CDATA_END
{ $$ = { type: 'CDATA', items: $cdata_content }; }
;
cdata_content
:
{ $$ = []; }
| text cdata_content
{ $$ = [].concat({ type: 'TEXT', value: $text }, $cdata_content); }
| flexy cdata_content
{ $$ = [].concat($flexy, $cdata_content); }
;
text
: TEXT
{ $$ = $TEXT; }
| TEXT text
{ $$ = $TEXT + $text; }
;
tag
: open_tag
| close_tag
;
open_tag
: LT TAG attrs GT
{ $$ = { type: 'OPEN_TAG', name: $TAG, attrs: $attrs }; }
| LT TAG attrs SLASH GT
{ $$ = { type: 'OPEN_CLOSE_TAG', name: $TAG, attrs: $attrs }; }
| LT WIDGET_TAG params GT
{ $$ = { type: 'WIDGET_TAG', params: $params }; }
| LT WIDGET_TAG params SLASH GT
{ $$ = { type: 'WIDGET_TAG', params: $params }; }
| LT LIST_TAG params GT
{ $$ = { type: 'LIST_TAG', params: $params }; }
| LT LIST_TAG params SLASH GT
{ $$ = { type: 'LIST_TAG', params: $params }; }
;
close_tag
: LT SLASH TAG GT
{ $$ = { type: 'CLOSE_TAG', name: $TAG }; }
;
params
: param
{ $$ = [$param]; }
| param params
{ $$ = [].concat($param, $params); }
;
param
: PARAM param_value
{ $$ = { type: 'PARAM', name: $PARAM, value: $param_value }; }
| PARAM_WO_VALUE
{ $$ = { type: 'PARAM', name: $PARAM_WO_VALUE }; }
| IF_ATTR flexy_composite_cond_exp FLEXY_ATTR_EXP_END
{ $$ = { type: 'IF_ATTR', cond: $flexy_composite_cond_exp }; }
| FOREACH_ATTR flexy_exp COMMA ID COMMA ID FLEXY_ATTR_EXP_END
{ $$ = { type: 'FOREACH_ATTR', exp: $flexy_exp, key: $ID1, value: $ID2 }; }
| FOREACH_ATTR flexy_exp COMMA ID FLEXY_ATTR_EXP_END
{ $$ = { type: 'FOREACH_ATTR', exp: $flexy_exp, value: $ID }; }
;
param_value
:
{ $$ = []; }
| text param_value
{ $$ = [].concat({ type: 'STRING', value: $text }, $param_value); }
| flexy_param_val_exp param_value
{ $$ = [].concat($flexy_param_val_exp, $param_value); }
| flexy_comment param_value
{ $$ = [].concat($param_value); }
| LBRACE flexy_composite_cond_exp RBRACE param_value
{ $$ = [].concat($flexy_composite_cond_exp, $param_value); }
;
attrs
:
{ $$ = []; }
| text attrs
{ $$ = [].concat({ type: 'TEXT', value: $text }, $attrs); }
| flexy attrs
{ $$ = [].concat($flexy, $attrs); }
| IF_ATTR flexy_composite_cond_exp FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'IF_ATTR', cond: $flexy_composite_cond_exp }, $attrs); }
| SELECTED_ATTR flexy_composite_cond_exp FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'SELECTED_ATTR', cond: $flexy_composite_cond_exp }, $attrs); }
| CHECKED_ATTR flexy_composite_cond_exp FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'CHECKED_ATTR', cond: $flexy_composite_cond_exp }, $attrs); }
| DISABLED_ATTR flexy_composite_cond_exp FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'DISABLED_ATTR', cond: $flexy_composite_cond_exp }, $attrs); }
| FOREACH_ATTR flexy_exp COMMA ID COMMA ID FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'FOREACH_ATTR', exp: $flexy_exp, key: $ID1, value: $ID2 }, $attrs); }
| FOREACH_ATTR flexy_exp COMMA ID FLEXY_ATTR_EXP_END attrs
{ $$ = [].concat({ type: 'FOREACH_ATTR', exp: $flexy_exp, value: $ID }, $attrs); }
;
flexy
: flexy_output_exp
| flexy_if_exp
| flexy_foreach_exp
| flexy_comment
;
flexy_comment
: FLEXY_COMMENT
{ $$ = { type: 'FLEXY_COMMENT', value: $FLEXY_COMMENT }; }
;
flexy_if_exp
: LBRACE IF flexy_composite_cond_exp RBRACE stmts flexy_elseif_stmt* flexy_else END
{ $$ = { type: 'IF_COND', cond: $flexy_composite_cond_exp, body_if: $stmts, body_else: $flexy_else, elseif: $6 }; }
;
flexy_else
:
| ELSE stmts
{ $$ = $stmts; }
;
flexy_elseif_stmt
: ELSEIF flexy_composite_cond_exp RBRACE stmts
{ $$ = { type: 'ELSEIF', cond: $flexy_composite_cond_exp, body: $stmts }; }
;
flexy_foreach_exp
: LBRACE FOREACH flexy_exp COMMA ID COMMA ID RBRACE stmts END
{ $$ = { type: 'FOREACH', exp: $flexy_exp, key: $ID1, value: $ID2, body: $stmts }; }
| LBRACE FOREACH flexy_exp COMMA ID RBRACE stmts END
{ $$ = { type: 'FOREACH', exp: $flexy_exp, value: $ID, body: $stmts }; }
;
flexy_composite_cond_exp
: flexy_composite_or_cond_exp;
flexy_composite_or_cond_exp
: flexy_composite_pos_and_cond_exp
| NEGATION flexy_composite_pos_and_cond_exp
{ $$ = { type: 'NEGATE', value: $flexy_composite_pos_and_cond_exp }; }
| NEGATION flexy_composite_pos_and_cond_exp OR flexy_composite_or_cond_exp
{ $$ = { type: 'NEGATE', value: { type: 'OR_COND', items: [$flexy_composite_pos_and_cond_exp, $flexy_composite_or_cond_exp] } }; }
| flexy_composite_pos_and_cond_exp OR flexy_composite_or_cond_exp
{ $$ = { type: 'OR_COND', items: [$flexy_composite_pos_and_cond_exp, $flexy_composite_or_cond_exp] }; }
;
flexy_composite_pos_and_cond_exp
: flexy_cond_exp
| flexy_cond_exp AND flexy_composite_and_cond_exp
{ $$ = { type: 'AND_COND', items: [$flexy_cond_exp, $flexy_composite_and_cond_exp] }; }
;
flexy_composite_and_cond_exp
: flexy_cond_exp
| NEGATION flexy_cond_exp
{ $$ = { type: 'NEGATE', value: $flexy_cond_exp }; }
| flexy_cond_exp AND flexy_composite_and_cond_exp
{ $$ = { type: 'AND_COND', items: [$flexy_cond_exp, $flexy_composite_and_cond_exp] }; }
| NEGATION flexy_cond_exp AND flexy_composite_and_cond_exp
{ $$ = { type: 'NEGATE', value: { type: 'AND_COND', items: [$flexy_cond_exp, $flexy_composite_and_cond_exp] } }; }
;
flexy_cond_exp
: flexy_exp
{ $$ = { type: 'COND', value: $flexy_exp }; }
| flexy_exp EQUALS flexy_exp
{ $$ = { type: 'EQUALS_COND', items: [$flexy_exp1, $flexy_exp2] }; }
| flexy_exp LESS_THAN flexy_exp
{ $$ = { type: 'LESS_THAN_COND', items: [$flexy_exp1, $flexy_exp2] }; }
| flexy_exp GREATER_THAN flexy_exp
{ $$ = { type: 'GREATER_THAN_COND', items: [$flexy_exp1, $flexy_exp2] }; }
;
flexy_output_exp
: LBRACE flexy_exp RBRACE
{ $$ = { type: 'OUTPUT', item: $flexy_exp }; }
| LBRACE flexy_exp MODIFIER RBRACE
{ $$ = { type: 'OUTPUT', item: $flexy_exp, modifier: $MODIFIER }; }
;
flexy_param_val_exp
: LBRACE flexy_exp MODIFIER? RBRACE
{ $$ = { type: 'EVAL', item: $flexy_exp }; }
;
flexy_exp
: flexy_singular_exp
{ $$ = { type: 'NAME_CHAIN', items: [$flexy_singular_exp] }; }
| flexy_complex_exp
{ $$ = { type: 'NAME_CHAIN', items: $flexy_complex_exp }; }
| php_static_member_access
;
php_static_member_access
: PHP_START text DOUBLE_COLON text PHP_END
{ $$ = { type: 'PHP_STATIC_MEMBER_ACCESS', context: $text1, member: $text2 }; }
;
flexy_complex_exp
: flexy_singular_exp DOT flexy_complex_exp_tail
{ $$ = [].concat($flexy_singular_exp, $flexy_complex_exp_tail); }
;
flexy_complex_exp_tail
: flexy_singular_exp
{ $$ = [$flexy_singular_exp]; }
| flexy_singular_exp DOT flexy_complex_exp_tail
{ $$ = [].concat($flexy_singular_exp, $flexy_complex_exp_tail); }
;
flexy_singular_exp
: flexy_property
| flexy_function_call
| flexy_literal
;
flexy_property
: ID
{ $$ = { type: 'PROPERTY', name: $ID }; }
;
flexy_function_call
: ID LPAREN flexy_args RPAREN
{ $$ = { type: 'CALL', name: $ID, arguments: $flexy_args }; }
;
flexy_args
:
{ $$ = []; }
| flexy_exp
{ $$ = [$flexy_exp]; }
| flexy_args COMMA flexy_exp
{ $$ = [].concat($flexy_args, $flexy_exp); }
;
flexy_literal
: STRING
{ $$ = { type: 'STRING', value: $STRING }; }
| NUMBER
{ $$ = { type: 'NUMBER', value: $NUMBER }; }
| flexy_array
;
flexy_array
: ARRAY LPAREN flexy_array_items RPAREN
{ $$ = { type: 'ARRAY', items: $flexy_array_items }; }
;
flexy_array_items
:
{ $$ = []; }
| flexy_array_item
{ $$ = [$flexy_array_item]; }
| flexy_array_item COMMA flexy_array_items
{ $$ = [].concat($flexy_array_item, $flexy_array_items); }
;
flexy_array_item
: flexy_kv_pair
| flexy_exp
;
flexy_kv_pair
: flexy_literal CARET flexy_exp
{ $$ = { type: 'KV', key: $flexy_literal, value: $flexy_exp }; }
| php_static_member_access CARET flexy_exp
{ $$ = { type: 'KV', key: $php_static_member_access, value: $flexy_exp }; }
;
%%
global.prettyPrint = function (obj) {
console.log(JSON.stringify(obj, null, 4));
};
global.renderTwig = function (nodes) {
var _ = require('underscore');
//prettyPrint(nodes);
var tagStack = [];
var currentIndent = 0, extraIndent = 0, ts = 2, isBlankRow = true;
var builtIns = {
't': 't',
'buildURL': 'url'
};
function renderNode(node, scope, overrideType) {
var type = overrideType || node.type;
switch (type) {
case 'FLEXY_COMMENT':
var val = node.value.replace(/^(\s*)(\*+)/mg, function(match, contents, offset, s) {
return match.replace(/\*/g, '#');
});
return t('{#' + val + '#}');
case 'HTML_COMMENT':
return t('<!--' + node.value + '-->');
case 'CDATA':
return t('<![CDATA[') + joinWithText(renderNodes(node.items, scope), '') + t(']]>');
case 'IF_COND':
return t('{% if ') + renderNode(node.cond, scope) + t(' %}')
+ joinWithText(renderNodes(node.body_if, scope), '')
+ (node.elseif ? joinWithText(renderNodes(node.elseif, scope), '') : '')
+ (node.body_else ? t('{% else %}') + joinWithText(renderNodes(node.body_else, scope), '') : '')
+ t('{% endif %}');
case 'ELSEIF':
return t('{% elseif ') + renderNode(node.cond, scope) + t(' %}')
+ joinWithText(renderNodes(node.body, scope), '');
case 'FOREACH':
var newScope = node.key ? scope.concat(node.key, node.value) : scope.concat(node.value);
return t('{% for ' + (node.key ? node.key + ', ' : '') + node.value + ' in ') + renderNode(node.exp, scope) + t(' %}')
+ joinWithText(renderNodes(node.body, newScope), '')
+ t('{% endfor %}');
case 'COND':
return renderNode(node.value, scope);
case 'NEGATE':
if (node.value.type == 'EQUALS_COND') {
return renderNode(node.value, scope, 'NOT_EQUALS_COND');
}
if (node.value.type == 'LESS_THAN_COND') {
return renderNode(node.value, scope, 'GREATER_THAN_OR_EQUALS_COND');
}
if (node.value.type == 'GREATER_THAN_COND') {
return renderNode(node.value, scope, 'LESS_THAN_OR_EQUALS_COND');
}
return t('not ') + (node.value.type == 'COND'
? renderNode(node.value, scope)
: t('(') + renderNode(node.value, scope) + t(')'));
case 'AND_COND':
return joinWithText(renderNodes(node.items, scope), ' and ');
case 'OR_COND':
return joinWithText(renderNodes(node.items, scope), ' or ');
case 'EQUALS_COND':
return renderNode(node.items[0], scope) + t(' == ') + renderNode(node.items[1], scope);
case 'NOT_EQUALS_COND':
return renderNode(node.items[0], scope) + t(' != ') + renderNode(node.items[1], scope);
case 'LESS_THAN_COND':
return renderNode(node.items[0], scope) + t(' < ') + renderNode(node.items[1], scope);
case 'GREATER_THAN_COND':
return renderNode(node.items[0], scope) + t(' > ') + renderNode(node.items[1], scope);
case 'LESS_THAN_OR_EQUALS_COND':
return renderNode(node.items[0], scope) + t(' <= ') + renderNode(node.items[1], scope);
case 'GREATER_THAN_OR_EQUALS_COND':
return renderNode(node.items[0], scope) + t(' >= ') + renderNode(node.items[1], scope);
case 'OUTPUT':
var modifiers = {
h: 'raw',
r: '',
u: 'url_encode',
b: 'nl2br',
nl2br: 'nl2br',
striptags: 'striptags'
};
if (typeof(node.modifier) != 'undefined') {
var filter = modifiers[node.modifier];
}
if (node.modifier == 's') {
return t('{% do ') + renderNode(node.item, scope) + t(' %}');
}
return t('{{ ') + renderNode(node.item, scope) + t(filter ? '|' + filter : '') + t(' }}');
case 'EVAL':
return renderNode(node.item, scope);
case 'PROPERTY':
return t(node.name);
case 'CALL':
return t(node.name + '(') + joinWithText(renderNodes(node.arguments, scope), ', ') + t(')');
case 'NAME_CHAIN':
var first = node.items[0],
addThis = first.type == 'PROPERTY' || first.type == 'CALL',
isBuiltIn = _.has(builtIns, first.name),
isSpecial = first.type == 'PROPERTY' && (first.name.match(/[a-zA-Z_]+ArraySize/) || first.name.match(/[a-zA-Z_]+ArrayPointer/));
addThis = addThis && !isVarInScope(first.name, scope, tagStack) && !isBuiltIn && !isSpecial;
if (isBuiltIn) {
first = _.clone(first);
first.name = builtIns[first.name];
}
if (isSpecial) {
first = _.clone(first);
first.name = first.name
.replace(/[a-zA-Z_]+ArrayPointer/, 'loop.index')
.replace(/[a-zA-Z_]+ArraySize/, 'loop.length');
}
return (addThis ? t('this.') : '') + joinWithText([renderNode(first, scope)].concat(renderNodes(node.items.slice(1), scope)), '.');
case 'STRING':
return t('\'') + node.value.replace(/\\/g, '\\\\').replace(/'/g, '\\\'').replace(/\.tpl\b/i, '.twig') + t('\'');
case 'NUMBER':
return t(node.value);
case 'ARRAY':
var isHash = _.any(node.items, function (item) { return item.type == 'KV'; }),
isMixed = isHash && _.any(node.items, function (item) { return item.type != 'KV'; });
if (isMixed) {
throw new Error('Mixed arrays/hashes are not supported');
} else if (isHash) {
return t('{') + joinWithText(renderNodes(node.items, scope), ', ') + t('}');
} else {
return t('[') + joinWithText(renderNodes(node.items, scope), ', ') + t(']');
}
return t('');
case 'KV':
var key = node.key.type == 'STRING' || node.key.type == 'NUMBER'
? renderNode(node.key, scope)
: t('(') + renderNode(node.key, scope) + t(')');
return key + t(': ') + renderNode(node.value, scope);
case 'TEXT':
return t(node.value);
case 'OPEN_TAG':
case 'OPEN_CLOSE_TAG':
var selfClosing = type == 'OPEN_CLOSE_TAG';
var selfClosingTags = ['area',
'base',
'br',
'col',
'command',
'embed',
'hr',
'img',
'input',
'keygen',
'link',
'meta',
'param',
'source',
'track',
'wbr'];
return openTag(node.name, node.attrs)
+ t('<' + node.name) + joinWithText(renderNodes(_.map(node.attrs, insertAssetFunction), scope), '') + t((type == 'OPEN_CLOSE_TAG' ? '/' : '') + '>')
+ ((selfClosing || selfClosingTags.indexOf(node.name.toLowerCase()) != -1) ? closeTag(node.name) : '');
case 'CLOSE_TAG':
return closeTag(node.name, true);
case 'IF_ATTR':
return t('__COLLAPSE_WHITESPACE__');
case 'FOREACH_ATTR':
return t('__COLLAPSE_WHITESPACE__');
case 'SELECTED_ATTR':
return t('{% if ') + renderNode(node.cond, scope) + t(' %} selected="selected" {% endif %}');
case 'CHECKED_ATTR':
return t('{% if ') + renderNode(node.cond, scope) + t(' %} checked="checked" {% endif %}');
case 'DISABLED_ATTR':
return t('{% if ') + renderNode(node.cond, scope) + t(' %} disabled="disabled" {% endif %}');
case 'WIDGET_TAG':
var params = _.filter(node.params, function (p) { return p.type == 'PARAM'; }),
clazz = findParam(params, 'class'),
classExp = typeof clazz != 'undefined' ? suppress(function () { return renderParamVal(clazz, scope); }) : null,
name = findParam(params, 'name'),
end = findParam(params, 'end'),
template = findParam(params, 'template'),
target = findParam(params, 'target'),
isFormWidget = clazz && name && classExp.match(/Form\b/);
params = _.without(params, clazz, end, target);
if (typeof(template) != 'undefined' && typeof(clazz) == 'undefined') {
var tplParams = _.without(params, template);
return openTag('widget', node.params)
+ (tplParams.length > 0
? t('{{ widget(') + renderNamedParamsOrHash(params, scope) + t(') }}')
: t('{% include ') + renderParamVal(template, scope) + t(' %}'))
+ closeTag('widget');
} else if (typeof(end) != 'undefined') {
return t('{% endform %}') + closeTag('widget_form');
} else if (typeof(name) != 'undefined' && isFormWidget) {
return openTag('widget_form', node.params)
+ t('{% form ') + renderParamVal(clazz, scope) + renderFormParamsExp(_.without(params, name)) + t(' %}');
} else {
return openTag('widget', node.params)
+ t('{{ widget(') + (typeof(clazz) != 'undefined' ? renderParamVal(clazz, scope) : '')
+ (typeof(clazz) != 'undefined' && params.length > 0 ? ', ' : '')
+ renderNamedParamsOrHash(params, scope) + t(') }}')
+ closeTag('widget');
}
function renderFormParamsExp(params) {
return params.length > 0 ? t(' with ') + renderParamHash(params, scope) : t('');
}
function renderNamedParamsOrHash(nodes, scope) {
var useHash = _.any(nodes, function (node) {
return !node.name.match(/^[a-zA-Z_]*$/);
});
if (useHash) {
return '{' + joinWithText(_.map(nodes, function (node) {
return renderParamName(node.name) + t(': ') + renderParamVal(node, scope);
}), ', ') + '}';
} else {
return joinWithText(_.map(nodes, function (node) {
return renderParamName(node.name) + t('=') + renderParamVal(node, scope);
}), ', ');
}
}
case 'LIST_TAG':
var params = _.filter(node.params, function (p) { return p.type == 'PARAM'; }),
name = findParam(params, 'name');
params = _.without(params, name);
return openTag('widget_list', node.params)
+ t('{{ widget_list(') + renderParamVal(name, scope)
+ (params.length > 0 ? ', ' : '')
+ renderNamedParamsOrHash(params, scope) + t(') }}')
+ closeTag('widget_list');
case 'PHP_STATIC_MEMBER_ACCESS':
// TODO: handle (?) function calls
return node.context == 'static' || node.context == 'self'
? t('constant(\'' + node.member + '\', this)')
: t('constant(\'' + node.context + '::' + node.member + '\')');
default:
throw new Error('NOT IMPLEMENTED ' + type);
}
function openTag(name, nodeAttrs) {
var ind = isBlankRow ? currentIndent : null,
attrs = [],
txt = '',
newVars = [];
var ifAttr = _.find(nodeAttrs, function (attr) { return attr.type == 'IF_ATTR'; }),
foreachAttr = _.find(nodeAttrs, function (attr) { return attr.type == 'FOREACH_ATTR'; });
if (foreachAttr) {
txt += t('{% for ' + (foreachAttr.key ? foreachAttr.key + ', ' : '') + foreachAttr.value + ' in ')
+ renderNode(foreachAttr.exp, scope) + t(' %}');
if (ind != null) {
indent();
txt += t("\n" + renderIndent(ind));
}
attrs.push('for');
newVars = foreachAttr.key ? [foreachAttr.key, foreachAttr.value] : [foreachAttr.value];
}
var newScope = scope.concat(newVars);
if (ifAttr) {
txt += t('{% if ') + renderNode(ifAttr.cond, newScope) + t(' %}');
if (ind != null) {
indent();
txt += t("\n" + renderIndent(ind));
}
attrs.push('if');
}
tagStack.push({
name: name.toLowerCase(),
indent: ind,
attrs: attrs,
vars: newVars
});
return txt;
}
function closeTag(name, renderClosingTag) {
var txt = '', tag;
name = name.toLowerCase();
while ((tag = tagStack.pop()) && tag.name != name) {
close(tag);
}
if (renderClosingTag) {
txt += t('</' + name + '>');
}
if (typeof(tag) == 'undefined') {
//throw new Error('Closing tag does not have a matching opening');
} else {
close(tag);
}
function close(tag) {
var hasIf = tag.attrs.indexOf('if') != -1,
hasForeach = tag.attrs.indexOf('for') != -1;
if (hasIf) {
if (tag.indent != null) {
dedent();
txt += t("\n" + renderIndent(tag.indent));
}
txt += t('{% endif %}');
}
if (hasForeach) {
if (tag.indent != null) {
dedent();
txt += t("\n" + renderIndent(tag.indent));
}
txt += t('{% endfor %}');
}
}
return txt;
}
function indent() {
extraIndent += ts;
}
function dedent() {
extraIndent -= ts;
}
function renderIndent(x) {
return new Array(x + 1).join(' ');
}
function t(val) {
var rows = val.split("\n");
if (rows.length > 1) {
var lastRow = rows[rows.length-1];
currentIndent = lastRow.length;
isBlankRow = !lastRow.match(/\S/);
var prefix = rows.shift();
return prefix + "\n" +
_.map(rows, function (row) { return (renderIndent(extraIndent) + row) }).join("\n");
} else {
currentIndent += val.length;
isBlankRow = isBlankRow && !val.match(/\S/);
return val;
}
}
function suppress(lambda) {
var _currentIndent = currentIndent,
_isBlankRow = isBlankRow;
var result = lambda();
currentIndent = _currentIndent;
isBlankRow = _isBlankRow;
return result;
}
function joinWithText(parts, txt) {
if (parts.length == 0)
return '';
return _.reduce(parts, function (acc, v) {
return acc + t(txt) + v;
});
}
function renderParamHash(nodes, scope) {
return t('{') + joinWithText(_.map(nodes, function (node) {
return renderParamName(node.name) + t(': ') + renderParamVal(node, scope);
}), ', ') + t('}');
}
function renderParamName(name) {
return t(name.match(/^[a-zA-Z0-9_]+$/) ? name : "'" + name + "'");
}
function renderParamVal(node, scope) {
if (typeof node.value == 'undefined') {
return t("'1'");
}
return node.value.length > 0 ? joinWithText(renderNodes(node.value, scope), ' ~ ') : t("''");
}
function findParam(params, paramName) {
return _.find(params, function (p) { return p.name.toLowerCase() == paramName.toLowerCase(); })
}
function insertAssetFunction(node) {
if (node.type == 'TEXT') {
node = _.clone(node);
node.value = node.value
.replace(/(\s)src="(images[^"]+)"/i, '$1src="{{ asset(\'$2\') }}"')
.replace(/(\s)src='(images[^']+)'/i, '$1src="{{ asset(\'$2\') }}"')
.replace(/(\s)background="(images[^"]+)"/i, '$1background="{{ asset(\'$2\') }}"')
.replace(/(\s)background='(images[^']+)'/i, '$1background="{{ asset(\'$2\') }}"');
}
return node;
}
}
function renderNodes(nodes, scope) {
return _.map(nodes, function (v) { return renderNode(v, scope); });
}
function collapseRemovedAttrsWhitespace(text) {
return text
.replace(/\s*__COLLAPSE_WHITESPACE__\s*(>|\/)/g, '$1')
.replace(/\s*__COLLAPSE_WHITESPACE__\s*/g, ' ')
;
}
function dropVimComment(text) {
return text.replace(/^\{# vim: set.+?#}\s*/, '');
}
function isVarInScope(name, scope, tagStack) {