ast — Abstract Syntax Trees
ast — Abstract Syntax Trees¶ Source code: Lib/ast.py The ast module helps Python applications to process trees of the Python abstract syntax grammar. The abstract syntax itself might change with each Python release; this module helps to find out programmatically what the current grammar looks like. An abstract syntax tree can be generated by passing ast.PyCF_ONLY_AST as a flag to the compile() bui
The Hacker's Guide to Python
Python is a wonderful programming language that is being used more and more in many different industries. It is fast, flexible, and it comes with batteries included. Most of the books you read about Python will teach you the language basics – but once you've learnt them, you’re on your own in designing your application and discovering best practice. In this book, we'll see how you can leverage Pyt
Python ã¨ãƒžã‚¯ãƒã€ã‚¤ãƒ³ãƒãƒ¼ãƒˆãƒ•ãƒƒã‚¯ã¨æŠ½è±¡æ§‹æ–‡æœ¨ - forest book
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clangã§ASTã‚’dumpã™ã‚‹ - Qiita
TranslationUnitDecl 0x1028218d0 <<invalid sloc>> |-TypedefDecl 0x102821dd0 <<invalid sloc>> __int128_t '__int128' |-TypedefDecl 0x102821e30 <<invalid sloc>> __uint128_t 'unsigned __int128' |-TypedefDecl 0x102821ec0 <<invalid sloc>> SEL 'SEL *' |-TypedefDecl 0x102821f90 <<invalid sloc>> id 'id' |-TypedefDecl 0x102822060 <<invalid sloc>> Class 'Class *' ...(çœç•¥)... | `-ParmVarDecl 0x1053064c0 <col:30
カジュアルJavaScript AST
今日ã®æ¦‚è¦ å®Ÿã¯ä½¿ã‚ã‚Œã¦ã‚‹JavaScript AST JavaScript AST(Abstract Syntax Tree)ã¨ã¯? JavaScript ASTを使ã£ãŸãƒ„ール紹介 使ã†ã ã‘ã˜ã‚ƒãªãã¦æ›¸ã„ã¦ã¿ã‚ˆã† browserify Node.jsã§æ›¸ã‹ã‚ŒãŸã‚‚ã®ã‚’ブラウザå‘ã‘ã«å¤‰æ›ã™ã‚‹ãƒ„ール Node環境ã§é–‹ç™º -> browserifyã§ãƒ“ルド -> ブラウザã§å‹•ã JavaScriptã®ã‚³ãƒ¼ãƒ‰ã‚’ å¤‰æ› ã™ã‚‹ ≒ JavaScript ASTを見ã¦å¤‰æ› ã™ã‚‹ 本体ã®è‰²ã€…ãªéƒ¨åˆ†ã€transform pluginãªã©ã§ASTを使ã£ã¦ã‚‹
Scalaã§ãƒ‘ーサーを作ã£ã¦ã¿ã‚‹ã€œ2:構文木ã®ä½œæˆ - ãã—ã ã®Hatena
Scalaã®å‹‰å¼·ã‚’ã¯ã˜ã‚ãŸã®ã§ã€ã¨ã‚Šã‚ãˆãšç°¡å˜ãªæ•°å¼ãƒ‘ーサーを作ã£ã¦ã¿ã¦ã¾ã™ã€‚ å‰å›žã¯ã€ã¨ã‚Šã‚ãˆãšæ§‹æ–‡è¦å‰‡ã‚’定義ã—ã¾ã—ãŸã€‚ Scalaã§ãƒ‘ーサーを作ã£ã¦ã¿ã‚‹ã€œ1:構文定義 - ãã—ã ã®ã¯ã¦ãª 今回ã¯ã€ãã®æ§‹æ–‡è¦å‰‡ã‹ã‚‰ASTオブジェクトを生æˆã—よã†ã¨æ€ã„ã¾ã™ã€‚ 基底ã«ãªã‚‹ASTトレイトを用æ„ã—ã¦ã€ãã‚Œãžã‚Œã®æ§‹æ–‡è¦ç´ を定義ã—ã¾ã™ã€‚ trait AST case class AddOp(left: AST, right:AST) extends AST case class SubOp(left: AST, right:AST) extends AST case class MulOp(left: AST, right:AST) extends AST case class IntVal(value: Int) extends AST 構文ルールã§ASTè¦ç´ を生æˆã™ã‚‹ã‚ˆã†ã«ã—ã¾ã™ã€‚Parserã®
Python Insider JA
原文ã¯ã“ã¡ã‚‰: Python 2.7.18, the last release of Python 2 CPython ã®ã‚³ã‚¢é–‹ç™ºè€…㯠Python 2.7.18 ãŒå…¥æ‰‹ã§ãã‚‹ã“ã¨ã‚’発表ã—ã¾ã—ãŸã€‚ Python 2.7.18 㯠Python 2.7 ã®æœ€çµ‚版ã§ã‚ã‚Šã€ã—ãŸãŒã£ã¦ Python 2 ç³»ã®æœ€å¾Œã®ãƒªãƒªãƒ¼ã‚¹ã§ã‚‚ã‚ã‚Šã¾ã™ã€‚CPython ã®ã‚³ãƒŸãƒ¥ãƒ‹ãƒ†ã‚£ã¯ Python 2 ã¨ã®åˆ¥ã‚Œã‚’å‘Šã’ã‚‹ã¨ããŒãã¾ã—ãŸã€‚ ã“ã®ãƒ¦ãƒ‹ãƒ¼ã‚¯ã§è¿½æ‚¼ã¨ãªã‚‹ Python リリースを python.org ã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—ã¦ãã ã•ã„。 Python 2.7 㯠Python 2.6 ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¦ä»¥æ¥ã€11年以上も活発ã«é–‹ç™ºãŒè¡Œã‚ã‚Œã¦ãã¾ã—ãŸã€‚ãã®é–“ã€CPython ã®ã‚³ã‚¢é–‹ç™ºè€…ã¨ã‚³ãƒ³ãƒˆãƒªãƒ“ューター㯠2.7 ブランãƒã«ãƒã‚°ä¿®æ£ã‚’入念ã«è¡Œã£ã¦ãã¾ã—ãŸã€‚Python 2 㨠3 ã®ãã‚Œãžã‚Œã®ãƒ–ランãƒã«ä¿®æ£ã‚’è¡Œ
抽象構文木 - Wikipedia
抽象構文木（ã¡ã‚…ã†ã—ょã†ã“ã†ã¶ã‚“ãŽã€è‹±: abstract syntax treeã€AST）ã¯ã€é€šå¸¸ã®æ§‹æ–‡æœ¨ï¼ˆå…·è±¡æ§‹æ–‡æœ¨ã‚ã‚‹ã„ã¯è§£æžæœ¨ã¨ã‚‚言ã†ï¼‰ã‹ã‚‰ã€è¨€èªžã®æ„味ã«é–¢ä¿‚ãªã„æƒ…å ±ã‚’å–り除ãã€æ„味ã«é–¢ä¿‚ã‚ã‚‹æƒ…å ±ã®ã¿ã‚’å–り出ã—ãŸï¼ˆæŠ½è±¡ã—ãŸï¼‰æœ¨æ§‹é€ ã®æœ¨ã§ã‚る。 ç†è«–çš„ã«ã¯ã€æœ‰é™ãªãƒ©ãƒ™ãƒ«ä»˜ã有å‘木ã§ã‚る。ã¾ãŸã€æ¼”ç®—åã¨å¤‰æ•°ã‚„定数ã¨ã„ã£ãŸã‚ªãƒšãƒ©ãƒ³ãƒ‰ã‹ã‚‰æˆã‚‹æ•°å¼ãªã©ã®ã‚ˆã†ãªã‚‚ã®ã«å¯¾ã™ã‚‹æŠ½è±¡æ§‹æ–‡æœ¨ã‚’例ã«ã™ã‚‹ã¨ã€åˆ†æžç‚¹ã¯æ¼”ç®—åã€è‘‰ã¯ã‚ªãƒšãƒ©ãƒ³ãƒ‰ï¼ˆã¤ã¾ã‚Šã€å¤‰æ•°ã‚„定数）ã§ã‚る。 抽象構文木ã¯ã€æ§‹æ–‡è§£æžã«ã‚ˆã£ã¦ç›´æŽ¥å¾—られる具象構文木ã¨ã€æœ€çµ‚çš„ãªæ„味表ç¾ãªã©ã®ãƒ‡ãƒ¼ã‚¿æ§‹é€ ã¨ã®ã€ä¸é–“ã«ã‚ã‚‹ã‚‚ã®ã¨ä½ç½®ä»˜ã‘ã‚‹ã“ã¨ãŒã§ãる。コンパイラやインタプリタã¨ã„ã£ãŸãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªžå‡¦ç†ç³»ã®å ´åˆã¯ã€ä¸é–“表ç¾ã®ã²ã¨ã¤ã§ã‚ã‚Šã€ä¸€éƒ¨ã®æœ€é©åŒ–ã¯æŠ½è±¡æ§‹æ–‡æœ¨ã®ä¸Šã®æ“作ãªã©ã«ã‚ˆã£ã¦ãŠã“ãªã‚れる。具象ã«å¯¾ã™ã‚‹æ§‹æ–‡ãŒãŸã¨ãˆã°BNFã«ã‚ˆã£ã¦è¦å®šã•ã‚Œã‚‹ã‚ˆã†ã«ã€
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ast.unparse sample for hy ast
32.2. ast — Abstract Syntax Trees — Python 2.7.18 documentation
astdump
ast package - go/ast - Go Packages
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