feat: build language tree

Author: xepozz

gradle.properties

@@ -16,7 +16,7 @@ platformVersion = 2025.1.1
 
 # Plugin Dependencies -> https://plugins.jetbrains.com/docs/intellij/plugin-dependencies.html
 # Example: platformPlugins = com.jetbrains.php:203.4449.22, org.intellij.scala:2023.3.27@EAP
-platformPlugins =com.jetbrains.php:251.23774.318,com.jetbrains.hackathon.indices.viewer:1.30
+platformPlugins =com.jetbrains.php:251.23774.318,com.jetbrains.hackathon.indices.viewer:1.30,com.github.xepozz.php_dump:2025.0.5
 # Example: platformBundledPlugins = com.intellij.java
 platformBundledPlugins =
 

playground/simple.opcodes.phpo

@@ -0,0 +1,15 @@
+
+$_main:
+     ; (lines=10, args=0, vars=3, tmps=5)
+     ; (before optimizer)
+     ; /Users/xepozz/IdeaProjects/xepozz/php-opcodes-lang-plugin/playground/simple.php:1-8
+0000 EXT_STMT
+0001 ASSIGN CV0($var1) int(1)
+0002 EXT_STMT
+0003 ASSIGN CV1($var2) int(2)
+0004 EXT_STMT
+0005 T5 = ADD CV0($var1) CV1($var2)
+0006 ASSIGN CV2($var3) T5
+0007 EXT_STMT
+0008 ECHO string("test")
+0009 RETURN int(1)

playground/simple.php

@@ -0,0 +1,8 @@
+<?php
+
+$var1 = 1;
+$var2 = 2;
+
+$var3 = $var1 + $var2;
+
+echo "test";

src/main/kotlin/com/github/xepozz/php_opcodes_language/language/parser/PHPOp.bnf

@@ -24,13 +24,35 @@
     SYMBOL = "SYMBOL"
     IDENTIFIER = "IDENTIFIER"
     NUMBER = "NUMBER"
+    DOLLAR_SIGN = "DOLLAR_SIGN"
+    EQUALS_SIGN = "EQUALS_SIGN"
     TEXT = "TEXT"
+    IDENTIFIER = "IDENTIFIER"
+    COLON = "COLON"
   ]
 }
 
 // Top level structure
 phpOpFile ::= item_*
 
-private item_ ::= internal
+private item_ ::= block | COMMENT | EOL
+
+block ::= block_name COLON statements
+
+block_name ::= var_name
+
+statements ::= (statement | COMMENT EOL | EOL)+
+
+statement ::= NUMBER (assignment_instruction | instruction)
+
+assignment_instruction ::= IDENTIFIER EQUALS_SIGN instruction
+
+instruction ::= IDENTIFIER argument? argument?
+
+argument ::= expr
+
+private expr ::= var_name | TEXT | NUMBER | IDENTIFIER paren_expr | IDENTIFIER
+
+paren_expr ::= LPAREN expr RPAREN
 
-internal ::= COMMENT | EOL
+private var_name ::= DOLLAR_SIGN IDENTIFIER

src/main/kotlin/com/github/xepozz/php_opcodes_language/language/parser/PHPOp.flex

@@ -24,16 +24,15 @@ import java.util.Stack;
 // Common macros
 WHITESPACE = [ \t\f]
 NEWLINE = \r\n|\r|\n
-COMMENT = "#"[^\n]*
+COMMENT = ";"[^\n]*
 
 // Identifier patterns
-IDENTIFIER = [a-zA-Z][a-zA-Z0-9_\-]*
+IDENTIFIER = [_a-zA-Z][a-zA-Z0-9_\-]*
 NUMBER = [0-9]+
-TEXT = [^\s{\}(\)\[\]<\>\|\#\'\`\-\+\?\@][^\s{\}(\)\[\]<\>]*
+//TEXT = [^\s{\}(\)\[\]<\>\|\#\'\`\-\+\?\@][^\s{\}(\)\[\]<\>]*
 SYMBOL = [\-\+\~\?\<\>\@]
 
 QUOTTED_STRING = "\""(\\\"|[^\"])*"\""
-BACKTICK_STRING = "`"(\\\`|[^\`])*"`"
 
 // Special symbols
 LBRACE = "{"
@@ -42,6 +41,9 @@ LPAREN = "("
 RPAREN = ")"
 LBRACKET = "["
 RBRACKET = "]"
+DOLLAR_SIGN = "$"
+EQUALS_SIGN = "="
+COLON = ":"
 
 %{
 private Stack<Integer> stack = new Stack<>();
@@ -59,26 +61,30 @@ public void yypopState() {
 %%
 
 <YYINITIAL, IN_BLOCK> {
-{LBRACE}                                     { yypushState(IN_BLOCK); return PHPOpTypes.LBRACE; }
-{RBRACE}                                     { yypopState(); return PHPOpTypes.RBRACE; }
-
-// Special symbols
-{LPAREN}                                     { return PHPOpTypes.LPAREN; }
-{RPAREN}                                     { return PHPOpTypes.RPAREN; }
-{LBRACKET}                                   { return PHPOpTypes.LBRACKET; }
-{RBRACKET}                                   { return PHPOpTypes.RBRACKET; }
-
-// Common elements
-{IDENTIFIER}                                 { return PHPOpTypes.IDENTIFIER; }
-{NUMBER}                                     { return PHPOpTypes.NUMBER; }
-{SYMBOL}                                     { return PHPOpTypes.SYMBOL; }
-{TEXT}|{QUOTTED_STRING}|{BACKTICK_STRING}    { return PHPOpTypes.TEXT; }
-
-// Whitespace and comments
-{WHITESPACE}                                 { return TokenType.WHITE_SPACE; }
-{NEWLINE}                                    { return PHPOpTypes.EOL; }
-{COMMENT}                                    { return PHPOpTypes.COMMENT; }
+    {LBRACE}                                     { yypushState(IN_BLOCK); return PHPOpTypes.LBRACE; }
+    {RBRACE}                                     { yypopState(); return PHPOpTypes.RBRACE; }
+
+    // Special symbols
+    {LPAREN}                                     { return PHPOpTypes.LPAREN; }
+    {RPAREN}                                     { return PHPOpTypes.RPAREN; }
+    {LBRACKET}                                   { return PHPOpTypes.LBRACKET; }
+    {RBRACKET}                                   { return PHPOpTypes.RBRACKET; }
+    {DOLLAR_SIGN}                                { return PHPOpTypes.DOLLAR_SIGN; }
+    {EQUALS_SIGN}                                { return PHPOpTypes.EQUALS_SIGN; }
+
+    // Common elements
+    {IDENTIFIER}                                     { return PHPOpTypes.IDENTIFIER; }
+    {COLON}                                     { return PHPOpTypes.COLON; }
+    {NUMBER}                                     { return PHPOpTypes.NUMBER; }
+    {SYMBOL}                                     { return PHPOpTypes.SYMBOL; }
+//    {TEXT}|{QUOTTED_STRING}                      { return PHPOpTypes.TEXT; }
+    {QUOTTED_STRING}                      { return PHPOpTypes.TEXT; }
+
+    // Whitespace and comments
+    {WHITESPACE}                                 { return TokenType.WHITE_SPACE; }
+    {NEWLINE}                                    { return PHPOpTypes.EOL; }
+    {COMMENT}                                    { return PHPOpTypes.COMMENT; }
 }
 
 // Catch any other character
-[^]                                            { return TokenType.BAD_CHARACTER; }
+[^]                                             { return TokenType.BAD_CHARACTER; }

src/main/resources/META-INF/plugin.xml

@@ -13,6 +13,7 @@
                 name="PHP Opcodes"
                 implementationClass="com.github.xepozz.php_opcodes_language.language.PHPOpFileType"
                 language="PHP Opcodes"
+                extensions="phpo"
         />
         <lang.parserDefinition
                 language="PHP Opcodes"