maride/php-parser
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parse constant and string

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This commit is contained in:
z7zmey 2017-11-30 01:25:07 +02:00
parent 1bcc2b3a44
commit 3bf37a6785
4 changed files with 1503 additions and 1001 deletions
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2
lexer.go
View File

@ -8761,7 +8761,6 @@ yyrule145: // [b]?[\"]
l.ungetN(len(l.TokenBytes(nil)) - cnt)
tokenBytes := l.TokenBytes(nil)[:cnt]
fmt.Println(string(tokenBytes)) // TODO: RETURN TOKEN
pushState(STRING)
lval.token = string(tokenBytes)
return rune2Class('"')
@ -8810,6 +8809,7 @@ yyrule146: // \"
yyrule147: // \{\$
{
lval.token = string(l.ungetN(1))
pushState(PHP)
return T_CURLY_OPEN
goto yystate0
}

3
lexer.l
View File

@ -453,7 +453,6 @@ NEW_LINE (\r|\n|\r\n)
l.ungetN(len(l.TokenBytes(nil))-cnt)
tokenBytes := l.TokenBytes(nil)[:cnt]
fmt.Println(string(tokenBytes)) // TODO: RETURN TOKEN
pushState(STRING)
lval.token = string(tokenBytes); return rune2Class('"')
@ -494,7 +493,7 @@ NEW_LINE (\r|\n|\r\n)
}
<STRING>\" popState(); lval.token = "\""; return rune2Class(rune(l.TokenBytes(nil)[0]))
<STRING,HEREDOC,BACKQUOTE>\{\$ lval.token = string(l.ungetN(1)); return T_CURLY_OPEN
<STRING,HEREDOC,BACKQUOTE>\{\$ lval.token = string(l.ungetN(1)); pushState(PHP); return T_CURLY_OPEN
<STRING,HEREDOC,BACKQUOTE>\$\{ pushState(STRING_VAR_NAME);lval.token = string(l.TokenBytes(nil)); return T_DOLLAR_OPEN_CURLY_BRACES
<STRING,HEREDOC,BACKQUOTE>\$ l.ungetN(1);pushState(STRING_VAR)
<STRING>.

2408
parser.go
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File diff suppressed because it is too large Load Diff

91
parser.y
View File

@ -270,6 +270,15 @@ func (n node) attribute(key string, value string) node {
%type <node> trait_method_reference
%type <node> absolute_trait_method_reference
%type <node> method_body
%type <node> scalar
%type <node> encaps_list
%type <node> encaps_var
%type <node> encaps_var_offset
%type <node> constant
%type <node> class_name
%type <node> variable_class_name
%type <node> dereferencable
%type <node> dereferencable_scalar
%%
@ -866,7 +875,7 @@ expr_without_variable:
| T_BOOL_CAST expr { $$ = Node("CastBool").append($2); }
| T_UNSET_CAST expr { $$ = Node("CastUnset").append($2); }
| '@' expr { $$ = Node("Silence").append($2); }
| scalar { $$ = $1; }
| T_PRINT expr { $$ = Node("Print").append($2); }
| T_YIELD { $$ = Node("Yield"); }
| T_YIELD expr { $$ = Node("Yield").append($2); }
@ -874,6 +883,78 @@ expr_without_variable:
| T_YIELD_FROM expr { $$ = Node("YieldFrom").append($2); }
;
scalar:
T_LNUMBER { $$ = Node("Scalar").append(Node("Lnumber").attribute("value", $1)) }
| T_DNUMBER { $$ = Node("Scalar").append(Node("Dnumber").attribute("value", $1)) }
| T_LINE { $$ = Node("Scalar").append(Node("__LINE__")) }
| T_FILE { $$ = Node("Scalar").append(Node("__FILE__")) }
| T_DIR { $$ = Node("Scalar").append(Node("__DIR__")) }
| T_TRAIT_C { $$ = Node("Scalar").append(Node("__TRAIT__")) }
| T_METHOD_C { $$ = Node("Scalar").append(Node("__METHOD__")); }
| T_FUNC_C { $$ = Node("Scalar").append(Node("__FUNCTION__")); }
| T_NS_C { $$ = Node("Scalar").append(Node("__NAMESPACE__")); }
| T_CLASS_C { $$ = Node("Scalar").append(Node("__CLASS__")); }
| T_START_HEREDOC T_ENCAPSED_AND_WHITESPACE T_END_HEREDOC
{ $$ = Node("Scalar").append(Node("Heredoc").attribute("value", $2)) }
| T_START_HEREDOC T_END_HEREDOC
{ $$ = Node("Scalar").append(Node("Heredoc")) }
| '"' encaps_list '"' { $$ = $2; }
| T_START_HEREDOC encaps_list T_END_HEREDOC { $$ = $2; }
| dereferencable_scalar { $$ = $1; }
| constant { $$ = $1; }
;
encaps_list:
encaps_list encaps_var { $$ = $1.append($2) }
| encaps_list T_ENCAPSED_AND_WHITESPACE { $$ = $1.append(Node("String").attribute("value", $2)) }
| encaps_var { $$ = Node("EncapsList").append($1) }
| T_ENCAPSED_AND_WHITESPACE encaps_var { $$ = Node("EncapsList").append(Node("String").attribute("value", $1)).append($2) }
;
encaps_var:
T_VARIABLE { $$ = Node("Variable").attribute("value", $1) }
| T_VARIABLE '[' encaps_var_offset ']' { $$ = Node("Variable").attribute("value", $1).append(Node("offset").append($3)) }
| T_VARIABLE T_OBJECT_OPERATOR T_STRING { $$ = Node("Variable").attribute("value", $1).append(Node("property").attribute("value", $3)) }
| T_DOLLAR_OPEN_CURLY_BRACES expr '}' { $$ = Node("Variable").append(Node("expr").append($2)) }
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '}' { $$ = Node("Variable").attribute("value", $2) }
| T_DOLLAR_OPEN_CURLY_BRACES T_STRING_VARNAME '[' expr ']' '}'
{ $$ = Node("Variable").attribute("value", $2).append(Node("offset").append($4)) }
| T_CURLY_OPEN variable '}' { $$ = $2; }
;
encaps_var_offset:
T_STRING { $$ = Node("OffsetString").attribute("value", $1) }
| T_NUM_STRING { $$ = Node("OffsetNumString").attribute("value", $1) }
| '-' T_NUM_STRING { $$ = Node("OffsetNegateNumString").attribute("value", $2) }
| T_VARIABLE { $$ = Node("OffsetVariable").attribute("value", $1) }
;
constant:
name { $$ = Node("Const").append($1) }
| class_name T_PAAMAYIM_NEKUDOTAYIM identifier { $$ = Node("Const").append($1).append($3) }
| variable_class_name T_PAAMAYIM_NEKUDOTAYIM identifier
{ $$ = Node("Const").append($1).append($3) }
;
class_name:
T_STATIC { $$ = Node("Static") }
| name { $$ = $1; }
;
variable_class_name:
dereferencable { $$ = $1; }
;
dereferencable:
variable { $$ = $1; }
| '(' expr ')' { $$ = $2; }
| dereferencable_scalar { $$ = $1; }
;
dereferencable_scalar:
T_ARRAY '(' array_pair_list ')' { $$ = $3; }
| '[' array_pair_list ']' { $$ = $2; }
| T_CONSTANT_ENCAPSED_STRING { $$ = Node("String").attribute("value", $1) }
;
expr:
variable { $$ = $1; }
| expr_without_variable { $$ = $1; }
@ -894,7 +975,7 @@ variable:
simple_variable:
T_VARIABLE { $$ = Node("Variable").attribute("name", $1); }
| '$' '{' expr '}' { $$ = $3; }
| '$' '{' expr '}' { $$ = Node("Variable").append($3); }
| '$' simple_variable { $$ = Node("Variable").append($2); }
;
@ -904,9 +985,9 @@ simple_variable:
const src = `<?php
abstract class foo {
public function bar();
}
$a = +22 . $b;
$a = "str {${$a+$b}} str$b";
`