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TemplateParser.y
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TemplateParser.y
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/*
* This file is part of Smarty.
*
* (c) 2015 Uwe Tews
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
%stack_size 500
%name TP_
%declare_class {
namespace Smarty\Parser;
use \Smarty\Lexer\TemplateLexer as Lexer;
use \Smarty\ParseTree\Template as TemplateParseTree;
use \Smarty\Compiler\Template as TemplateCompiler;
use \Smarty\ParseTree\Code;
use \Smarty\ParseTree\Dq;
use \Smarty\ParseTree\DqContent;
use \Smarty\ParseTree\Tag;
/**
* Smarty Template Parser Class
*
* This is the template parser.
* It is generated from the TemplateParser.y file
*
* @author Uwe Tews <uwe.tews@googlemail.com>
*/
class TemplateParser
}
%include_class
{
const ERR1 = 'Security error: Call to private object member not allowed';
const ERR2 = 'Security error: Call to dynamic object member not allowed';
/**
* result status
*
* @var bool
*/
public $successful = true;
/**
* return value
*
* @var mixed
*/
public $retvalue = 0;
/**
* @var
*/
public $yymajor;
/**
* last index of array variable
*
* @var mixed
*/
public $last_index;
/**
* last variable name
*
* @var string
*/
public $last_variable;
/**
* root parse tree buffer
*
* @var TemplateParseTree
*/
public $root_buffer;
/**
* current parse tree object
*
* @var \Smarty\ParseTree\Base
*/
public $current_buffer;
/**
* lexer object
*
* @var Lexer
*/
public $lex;
/**
* internal error flag
*
* @var bool
*/
private $internalError = false;
/**
* {strip} status
*
* @var bool
*/
public $strip = false;
/**
* compiler object
*
* @var TemplateCompiler
*/
public $compiler = null;
/**
* smarty object
*
* @var \Smarty\Smarty
*/
public $smarty = null;
/**
* template object
*
* @var \Smarty\Template
*/
public $template = null;
/**
* block nesting level
*
* @var int
*/
public $block_nesting_level = 0;
/**
* security object
*
* @var \Smarty\Security
*/
public $security = null;
/**
* template prefix array
*
* @var \Smarty\ParseTree\Base[]
*/
public $template_prefix = array();
/**
* template prefix array
*
* @var \Smarty\ParseTree\Base[]
*/
public $template_postfix = array();
/**
* constructor
*
* @param Lexer $lex
* @param TemplateCompiler $compiler
*/
public function __construct(Lexer $lex, TemplateCompiler $compiler)
{
$this->lex = $lex;
$this->compiler = $compiler;
$this->template = $this->compiler->getTemplate();
$this->smarty = $this->template->getSmarty();
$this->security = $this->smarty->security_policy ?? false;
$this->current_buffer = $this->root_buffer = new TemplateParseTree();
}
/**
* insert PHP code in current buffer
*
* @param string $code
*/
public function insertPhpCode($code)
{
$this->current_buffer->append_subtree($this, new Tag($this, $code));
}
/**
* error rundown
*
*/
public function errorRunDown()
{
while ($this->yystack !== array()) {
$this->yy_pop_parser_stack();
}
if (is_resource($this->yyTraceFILE)) {
fclose($this->yyTraceFILE);
}
}
/**
* merge PHP code with prefix code and return parse tree tag object
*
* @param string $code
*
* @return Tag
*/
private function mergePrefixCode($code)
{
$tmp = '';
foreach ($this->compiler->prefix_code as $preCode) {
$tmp .= $preCode;
}
$this->compiler->prefix_code = array();
$tmp .= $code;
return new Tag($this, $this->compiler->processNocacheCode($tmp));
}
}
%token_prefix TP_
%parse_accept
{
$this->successful = !$this->internalError;
$this->internalError = false;
$this->retvalue = $this->_retvalue;
}
%syntax_error
{
$this->internalError = true;
$this->yymajor = $yymajor;
$this->compiler->trigger_template_error();
}
%stack_overflow
{
$this->internalError = true;
$this->compiler->trigger_template_error('Stack overflow in template parser');
}
%right VERT.
%left COLON.
//
// complete template
//
start(res) ::= template. {
$this->root_buffer->prepend_array($this, $this->template_prefix);
$this->root_buffer->append_array($this, $this->template_postfix);
res = $this->root_buffer->to_smarty_php($this);
}
// template text
template ::= template TEXT(B). {
$text = $this->yystack[ $this->yyidx + 0 ]->minor;
if ((string)$text == '') {
$this->current_buffer->append_subtree($this, null);
}
$this->current_buffer->append_subtree($this, new \Smarty\ParseTree\Text($text, $this->strip));
}
// strip on
template ::= template STRIPON. {
$this->strip = true;
}
// strip off
template ::= template STRIPOFF. {
$this->strip = false;
}
// Literal
template ::= template LITERALSTART literal_e2(B) LITERALEND. {
$this->current_buffer->append_subtree($this, new \Smarty\ParseTree\Text(B));
}
literal_e2(A) ::= literal_e1(B) LITERALSTART literal_e1(C) LITERALEND. {
A = B.C;
}
literal_e2(A) ::= literal_e1(B). {
A = B;
}
literal_e1(A) ::= literal_e1(B) LITERAL(C). {
A = B.C;
}
literal_e1(A) ::= . {
A = '';
}
// Smarty tag
template ::= template smartytag(B). {
$this->current_buffer->append_subtree($this, $this->mergePrefixCode(B));
$this->compiler->has_variable_string = false;
$this->block_nesting_level = $this->compiler->getTagStackCount();
}
// empty template
template ::= .
smartytag(A) ::= SIMPELOUTPUT(B). {
$var = trim(substr(B, $this->compiler->getLdelLength(), -$this->compiler->getRdelLength()), ' $');
$attributes = [];
if (preg_match('/^(.*)(\s+nocache)$/', $var, $match)) {
$attributes[] = 'nocache';
$var = $match[1];
}
A = $this->compiler->compilePrintExpression($this->compiler->compileVariable('\''.$var.'\''), $attributes);
}
// simple tag like {name}
smartytag(A)::= SIMPLETAG(B). {
$tag = trim(substr(B, $this->compiler->getLdelLength(), -$this->compiler->getRdelLength()));
if ($tag == 'strip') {
$this->strip = true;
A = null;
} else {
if (defined($tag)) {
if ($this->security) {
$this->security->isTrustedConstant($tag, $this->compiler);
}
A = $this->compiler->compilePrintExpression($tag);
} else {
if (preg_match('/^(.*)(\s+nocache)$/', $tag, $match)) {
A = $this->compiler->compileTag($match[1],array('\'nocache\''));
} else {
A = $this->compiler->compileTag($tag,array());
}
}
}
}
// {$smarty.block.child} or {$smarty.block.parent}
smartytag(A) ::= SMARTYBLOCKCHILDPARENT(i). {
$j = strrpos(i,'.');
if (i[$j+1] == 'c') {
// {$smarty.block.child}
A = $this->compiler->compileChildBlock();
} else {
// {$smarty.block.parent}
A = $this->compiler->compileParentBlock();
}
}
smartytag(A) ::= LDEL tagbody(B) RDEL. {
A = B;
}
smartytag(A) ::= tag(B) RDEL. {
A = B;
}
// output with optional attributes
tagbody(A) ::= outattr(B). {
A = $this->compiler->compilePrintExpression(B[0], B[1]);
}
//
// Smarty tags start here
//
// assign new style
tagbody(A) ::= DOLLARID(B) eqoutattr(C). {
A = $this->compiler->compileTag('assign',array_merge(array(array('value'=>C[0]),array('var'=>'\''.substr(B,1).'\'')),C[1]));
}
tagbody(A) ::= varindexed(B) eqoutattr(C). {
A = $this->compiler->compileTag('assign',array_merge(array(array('value'=>C[0]),array('var'=>B['var'])),C[1]),array('smarty_internal_index'=>B['smarty_internal_index']));
}
eqoutattr(A) ::= EQUAL outattr(B). {
A = B;
}
outattr(A) ::= output(B) attributes(C). {
A = array(B,C);
}
output(A) ::= variable(B). {
A = B;
}
output(A) ::= value(B). {
A = B;
}
output(A) ::= expr(B). {
A = B;
}
// tag with optional Smarty2 style attributes
tag(res) ::= LDEL ID(i) attributes(a). {
if (defined(i)) {
if ($this->security) {
$this->security->isTrustedConstant(i, $this->compiler);
}
res = $this->compiler->compilePrintExpression(i, a);
} else {
res = $this->compiler->compileTag(i,a);
}
}
tag(res) ::= LDEL ID(i). {
if (defined(i)) {
if ($this->security) {
$this->security->isTrustedConstant(i, $this->compiler);
}
res = $this->compiler->compilePrintExpression(i);
} else {
res = $this->compiler->compileTag(i,array());
}
}
// tag with modifier and optional Smarty2 style attributes
tag(res) ::= LDEL ID(i) modifierlist(l)attributes(a). {
if (defined(i)) {
if ($this->security) {
$this->security->isTrustedConstant(i, $this->compiler);
}
res = $this->compiler->compilePrintExpression(i, a, l);
} else {
res = $this->compiler->compileTag(i,a, array('modifierlist'=>l));
}
}
// registered object tag
tag(res) ::= LDEL ID(i) PTR ID(m) attributes(a). {
res = $this->compiler->compileTag(i,a,array('object_method'=>m));
}
// registered object tag with modifiers
tag(res) ::= LDEL ID(i) PTR ID(me) modifierlist(l) attributes(a). {
res = $this->compiler->compileTag(i,a,array('modifierlist'=>l, 'object_method'=>me));
}
// {if}, {elseif} and {while} tag
tag(res) ::= LDELIF(i) expr(ie). {
$tag = trim(substr(i,$this->compiler->getLdelLength()));
res = $this->compiler->compileTag(($tag === 'else if')? 'elseif' : $tag,array(),array('if condition'=>ie));
}
tag(res) ::= LDELIF(i) expr(ie) attributes(a). {
$tag = trim(substr(i,$this->compiler->getLdelLength()));
res = $this->compiler->compileTag(($tag === 'else if')? 'elseif' : $tag,a,array('if condition'=>ie));
}
tag(res) ::= LDELIF(i) statement(ie). {
$tag = trim(substr(i,$this->compiler->getLdelLength()));
res = $this->compiler->compileTag(($tag === 'else if')? 'elseif' : $tag,array(),array('if condition'=>ie));
}
tag(res) ::= LDELIF(i) statement(ie) attributes(a). {
$tag = trim(substr(i,$this->compiler->getLdelLength()));
res = $this->compiler->compileTag(($tag === 'else if')? 'elseif' : $tag,a,array('if condition'=>ie));
}
// {for} tag
tag(res) ::= LDELFOR statements(st) SEMICOLON expr(ie) SEMICOLON varindexed(v2) foraction(e2) attributes(a). {
res = $this->compiler->compileTag('for',array_merge(a,array(array('start'=>st),array('ifexp'=>ie),array('var'=>v2),array('step'=>e2))),1);
}
foraction(res) ::= EQUAL expr(e). {
res = '='.e;
}
foraction(res) ::= INCDEC(e). {
res = e;
}
tag(res) ::= LDELFOR statement(st) TO expr(v) attributes(a). {
res = $this->compiler->compileTag('for',array_merge(a,array(array('start'=>st),array('to'=>v))),0);
}
tag(res) ::= LDELFOR statement(st) TO expr(v) STEP expr(v2) attributes(a). {
res = $this->compiler->compileTag('for',array_merge(a,array(array('start'=>st),array('to'=>v),array('step'=>v2))),0);
}
// {foreach} tag
tag(res) ::= LDELFOREACH SPACE expr(e) AS varvar(v0) attributes(a). {
res = $this->compiler->compileTag('foreach',array_merge(a,array(array('from'=>e),array('item'=>v0))));
}
tag(res) ::= LDELFOREACH SPACE expr(e) AS varvar(v1) APTR varvar(v0) attributes(a). {
res = $this->compiler->compileTag('foreach',array_merge(a,array(array('from'=>e),array('item'=>v0),array('key'=>v1))));
}
tag(res) ::= LDELFOREACH attributes(a). {
res = $this->compiler->compileTag('foreach',a);
}
// {setfilter}
tag(res) ::= LDELSETFILTER ID(m) modparameters(p). {
res = $this->compiler->compileTag('setfilter',array(),array('modifier_list'=>array(array_merge(array(m),p))));
}
tag(res) ::= LDELSETFILTER ID(m) modparameters(p) modifierlist(l). {
res = $this->compiler->compileTag('setfilter',array(),array('modifier_list'=>array_merge(array(array_merge(array(m),p)),l)));
}
// end of block tag {/....}
smartytag(res)::= CLOSETAG(t). {
$tag = trim(substr(t, $this->compiler->getLdelLength(), -$this->compiler->getRdelLength()), ' /');
if ($tag === 'strip') {
$this->strip = false;
res = null;
} else {
res = $this->compiler->compileTag($tag.'close',array());
}
}
tag(res) ::= LDELSLASH ID(i). {
res = $this->compiler->compileTag(i.'close',array());
}
tag(res) ::= LDELSLASH ID(i) modifierlist(l). {
res = $this->compiler->compileTag(i.'close',array(),array('modifier_list'=>l));
}
// end of block object tag {/....}
tag(res) ::= LDELSLASH ID(i) PTR ID(m). {
res = $this->compiler->compileTag(i.'close',array(),array('object_method'=>m));
}
tag(res) ::= LDELSLASH ID(i) PTR ID(m) modifierlist(l). {
res = $this->compiler->compileTag(i.'close',array(),array('object_method'=>m, 'modifier_list'=>l));
}
//
//Attributes of Smarty tags
//
// list of attributes
attributes(res) ::= attributes(a1) attribute(a2). {
res = a1;
res[] = a2;
}
// single attribute
attributes(res) ::= attribute(a). {
res = array(a);
}
// no attributes
attributes(res) ::= . {
res = array();
}
// attribute
attribute(res) ::= SPACE ID(v) EQUAL ID(id). {
if (defined(id)) {
if ($this->security) {
$this->security->isTrustedConstant(id, $this->compiler);
}
res = array(v=>id);
} else {
res = array(v=>'\''.id.'\'');
}
}
attribute(res) ::= ATTR(v) expr(e). {
res = array(trim(v," =\n\r\t")=>e);
}
attribute(res) ::= ATTR(v) value(e). {
res = array(trim(v," =\n\r\t")=>e);
}
attribute(res) ::= SPACE ID(v). {
res = '\''.v.'\'';
}
attribute(res) ::= SPACE expr(e). {
res = e;
}
attribute(res) ::= SPACE value(v). {
res = v;
}
attribute(res) ::= SPACE INTEGER(i) EQUAL expr(e). {
res = array(i=>e);
}
//
// statement
//
statements(res) ::= statement(s). {
res = array(s);
}
statements(res) ::= statements(s1) COMMA statement(s). {
s1[]=s;
res = s1;
}
statement(res) ::= DOLLARID(i) EQUAL INTEGER(e). {
res = array('var' => '\''.substr(i,1).'\'', 'value'=>e);
}
statement(res) ::= DOLLARID(i) EQUAL expr(e). {
res = array('var' => '\''.substr(i,1).'\'', 'value'=>e);
}
statement(res) ::= varindexed(vi) EQUAL expr(e). {
res = array('var' => vi, 'value'=>e);
}
statement(res) ::= OPENP statement(st) CLOSEP. {
res = st;
}
//
// expressions
//
// single value
expr(res) ::= value(v). {
res = v;
}
// nullcoalescing
expr(res) ::= nullcoalescing(v). {
res = v;
}
// ternary
expr(res) ::= ternary(v). {
res = v;
}
// ++$a / --$a
expr(res) ::= INCDEC(i2) DOLLARID(i). {
res = '$_smarty_tpl->getVariable(\''. substr(i,1) .'\')->preIncDec(\'' . i2 . '\')';
}
// $a++ / $a--
expr(res) ::= DOLLARID(i) INCDEC(i2). {
res = '$_smarty_tpl->getVariable(\''. substr(i,1) .'\')->postIncDec(\'' . i2 . '\')';
}
// resources/streams
expr(res) ::= DOLLARID(i) COLON ID(i2). {
res = '$_smarty_tpl->getStreamVariable(\''.substr(i,1).'://' . i2 . '\')';
}
// arithmetic expression
expr(res) ::= expr(e) MATH(m) value(v). {
res = e . trim(m) . v;
}
expr(res) ::= expr(e) UNIMATH(m) value(v). {
res = e . trim(m) . v;
}
// if expression
// special conditions
expr(res) ::= expr(e1) tlop(c) value(e2). {
res = c['pre']. e1.c['op'].e2 .')';
}
// simple expression
expr(res) ::= expr(e1) lop(c) expr(e2). {
res = e1.c.e2;
}
expr(res) ::= expr(e1) scond(c). {
res = c . e1 . ')';
}
isin(res) ::= ISIN(o). {
static $isin = [
'isin' => 'in_array(',
'isnotin' => '!in_array(',
];
$op = strtolower(str_replace(' ', '', o));
res = $isin[$op];
}
expr(res) ::= expr(e1) isin(c) array(a). {
res = c . e1.','.a.')';
}
expr(res) ::= expr(e1) isin(c) value(v). {
res = c . e1.',(array)'.v.')';
}
// null coalescing
nullcoalescing(res) ::= expr(v) QMARK QMARK expr(e2). {
res = v.' ?? '.e2;
}
//
// ternary
//
ternary(res) ::= expr(v) QMARK DOLLARID(e1) COLON expr(e2). {
res = v.' ? '. $this->compiler->compileVariable('\''.substr(e1,1).'\'') . ' : '.e2;
}
ternary(res) ::= expr(v) QMARK value(e1) COLON expr(e2). {
res = v.' ? '.e1.' : '.e2;
}
ternary(res) ::= expr(v) QMARK expr(e1) COLON expr(e2). {
res = v.' ? '.e1.' : '.e2;
}
// shorthand ternary
ternary(res) ::= expr(v) QMARK COLON expr(e2). {
res = v.' ?: '.e2;
}
// value
value(res) ::= variable(v). {
res = v;
}
// +/- value
value(res) ::= UNIMATH(m) value(v). {
res = m.v;
}
// logical negation
value(res) ::= NOT value(v). {
res = '!'.v;
}
value(res) ::= TYPECAST(t) value(v). {
res = t.v;
}
value(res) ::= variable(v) INCDEC(o). {
res = v.o;
}
// numeric
value(res) ::= HEX(n). {
res = n;
}
value(res) ::= INTEGER(n). {
res = n;
}
value(res) ::= INTEGER(n1) DOT INTEGER(n2). {
res = n1.'.'.n2;
}
value(res) ::= INTEGER(n1) DOT. {
res = n1.'.';
}
value(res) ::= DOT INTEGER(n1). {
res = '.'.n1;
}
// ID, true, false, null
value(res) ::= ID(id). {
if (defined(id)) {
if ($this->security) {
$this->security->isTrustedConstant(id, $this->compiler);
}
res = id;
} else {
res = '\''.id.'\'';
}
}
// function call
value(res) ::= function(f). {
res = f;
}
// expression
value(res) ::= OPENP expr(e) CLOSEP. {
res = '('. e .')';
}
value(res) ::= variable(v1) INSTANCEOF(i) ns1(v2). {
res = v1.i.v2;
}
value(res) ::= variable(v1) INSTANCEOF(i) variable(v2). {
res = v1.i.v2;
}
// singele quoted string
value(res) ::= SINGLEQUOTESTRING(t). {
res = t;
}
// double quoted string
value(res) ::= doublequoted_with_quotes(s). {
res = s;
}
value(res) ::= varindexed(vi) DOUBLECOLON static_class_access(r). {
if ($this->security && $this->security->static_classes !== array()) {
$this->compiler->trigger_template_error('dynamic static class not allowed by security setting');
}
$prefixVar = $this->compiler->getNewPrefixVariable();
if (vi['var'] === '\'smarty\'') {
$this->compiler->appendPrefixCode("<?php {$prefixVar} = ". (new \Smarty\Compile\SpecialVariableCompiler())->compile(array(),$this->compiler,vi['smarty_internal_index']).';?>');
} else {
$this->compiler->appendPrefixCode("<?php {$prefixVar} = ". $this->compiler->compileVariable(vi['var']).vi['smarty_internal_index'].';?>');
}
res = $prefixVar .'::'.r[0].r[1];
}
// Smarty tag
value(res) ::= smartytag(st). {
$prefixVar = $this->compiler->getNewPrefixVariable();
$tmp = $this->compiler->appendCode('<?php ob_start();?>', (string) st);
$this->compiler->appendPrefixCode($this->compiler->appendCode($tmp, "<?php {$prefixVar} = ob_get_clean();?>"));
res = $prefixVar;
}
value(res) ::= value(v) modifierlist(l). {
res = $this->compiler->compileModifier(l, v);
}
// name space constant
value(res) ::= NAMESPACE(c). {
res = c;
}
// array
value(res) ::= arraydef(a). {
res = a;
}
// static class access
value(res) ::= ns1(c)DOUBLECOLON static_class_access(s). {
if (!in_array(strtolower(c), array('self', 'parent')) && (!$this->security || $this->security->isTrustedStaticClassAccess(c, s, $this->compiler))) {
if (isset($this->smarty->registered_classes[c])) {
res = $this->smarty->registered_classes[c].'::'.s[0].s[1];
} else {
res = c.'::'.s[0].s[1];
}
} else {
$this->compiler->trigger_template_error ('static class \''.c.'\' is undefined or not allowed by security setting');
}
}
//
// namespace stuff
//
ns1(res) ::= ID(i). {
res = i;
}
ns1(res) ::= NAMESPACE(i). {
res = i;
}
//
// variables
//
// Smarty variable (optional array)
variable(res) ::= DOLLARID(i). {
res = $this->compiler->compileVariable('\''.substr(i,1).'\'');
}
variable(res) ::= varindexed(vi). {
if (vi['var'] === '\'smarty\'') {
$smarty_var = (new \Smarty\Compile\SpecialVariableCompiler())->compile(array(),$this->compiler,vi['smarty_internal_index']);
res = $smarty_var;
} else {
// used for array reset,next,prev,end,current
$this->last_variable = vi['var'];
$this->last_index = vi['smarty_internal_index'];
res = $this->compiler->compileVariable(vi['var']).vi['smarty_internal_index'];
}
}
// variable with property
variable(res) ::= varvar(v) AT ID(p). {
res = '$_smarty_tpl->getVariable('. v .')->'.p;
}
// object
variable(res) ::= object(o). {
res = o;
}
// config variable
variable(res) ::= HATCH ID(i) HATCH. {
res = $this->compiler->compileConfigVariable('\'' . i . '\'');
}
variable(res) ::= HATCH ID(i) HATCH arrayindex(a). {
res = '(is_array($tmp = ' . $this->compiler->compileConfigVariable('\'' . i . '\'') . ') ? $tmp'.a.' :null)';
}
variable(res) ::= HATCH variable(v) HATCH. {
res = $this->compiler->compileConfigVariable(v);
}
variable(res) ::= HATCH variable(v) HATCH arrayindex(a). {
res = '(is_array($tmp = ' . $this->compiler->compileConfigVariable(v) . ') ? $tmp'.a.' : null)';
}
varindexed(res) ::= DOLLARID(i) arrayindex(a). {
res = array('var'=>'\''.substr(i,1).'\'', 'smarty_internal_index'=>a);
}
varindexed(res) ::= varvar(v) arrayindex(a). {
res = array('var'=>v, 'smarty_internal_index'=>a);
}
//
// array index
//
// multiple array index
arrayindex(res) ::= arrayindex(a1) indexdef(a2). {
res = a1.a2;
}
// no array index
arrayindex ::= . {
return;
}
// single index definition
// Smarty2 style index
indexdef(res) ::= DOT DOLLARID(i). {
res = '['.$this->compiler->compileVariable('\''.substr(i,1).'\'').']';
}
indexdef(res) ::= DOT varvar(v). {
res = '['.$this->compiler->compileVariable(v).']';
}
indexdef(res) ::= DOT varvar(v) AT ID(p). {
res = '['.$this->compiler->compileVariable(v).'->'.p.']';
}
indexdef(res) ::= DOT ID(i). {
res = '[\''. i .'\']';
}
indexdef(res) ::= DOT INTEGER(n). {
res = '['. n .']';
}
indexdef(res) ::= DOT LDEL expr(e) RDEL. {
res = '['. e .']';
}
// section tag index
indexdef(res) ::= OPENB ID(i)CLOSEB. {
res = '['.(new \Smarty\Compile\SpecialVariableCompiler())->compile(array(),$this->compiler,'[\'section\'][\''.i.'\'][\'index\']').']';
}
indexdef(res) ::= OPENB ID(i) DOT ID(i2) CLOSEB. {
res = '['.(new \Smarty\Compile\SpecialVariableCompiler())->compile(array(),$this->compiler,'[\'section\'][\''.i.'\'][\''.i2.'\']').']';
}
indexdef(res) ::= OPENB SINGLEQUOTESTRING(s) CLOSEB. {
res = '['.s.']';
}
indexdef(res) ::= OPENB INTEGER(n) CLOSEB. {
res = '['.n.']';
}
indexdef(res) ::= OPENB DOLLARID(i) CLOSEB. {
res = '['.$this->compiler->compileVariable('\''.substr(i,1).'\'').']';
}
indexdef(res) ::= OPENB variable(v) CLOSEB. {
res = '['.v.']';
}
indexdef(res) ::= OPENB value(v) CLOSEB. {
res = '['.v.']';
}
// PHP style index
indexdef(res) ::= OPENB expr(e) CLOSEB. {
res = '['. e .']';
}
// for assign append array
indexdef(res) ::= OPENB CLOSEB. {
res = '[]';
}
//
// variable variable names
//
// singel identifier element
varvar(res) ::= DOLLARID(i). {
res = '\''.substr(i,1).'\'';
}
// single $
varvar(res) ::= DOLLAR. {
res = '\'\'';
}
// sequence of identifier elements
varvar(res) ::= varvar(v1) varvarele(v2). {
res = v1.'.'.v2;
}
// fix sections of element
varvarele(res) ::= ID(s). {
res = '\''.s.'\'';
}