Formal Languages and Compilers
IFJe Acad. year 2013/2014 Winter semester 5 credits
This course discusses formal languages and their models. Based on these models, it explains the construction of compilers. The lectures are organized as follows: (I) Basic notions: formal languages and their models, grammars, automata; compilers. (II) Regular languages and lexical analysis: regular languages and expressions, finite automata and transducers, lexical analyzer; Lex; symbol table. (III) Context-free languages and syntax analysis: context-free grammars, pushdown automata and transducers, deterministic top-down syntax analysis (recursive descent), the essence of deterministic bottom-up syntax analysis; Yacc. (IV) Semantic analysis and code generation: intermediate code generation, optimization, code generation.
Language of instruction
Subject specific learning outcomes and competences
Fundamental familiarity with the theory of formal languages. Ability of a compiler construction.
Familiarity with formal languages and their models. Grasp of compiler construction.
Prerequisite kwnowledge and skills
- Copy of lectures.
- Meduna, A.: Automata and Languages. London, Springer, 2000.
- Parsons, T. W.: Introduction to Compiler Construction. Freeman, New York, 1992.
Syllabus of lectures
- Formal languages.
- Translation of languages and the structure of a compiler.
- Regular languages and their models: regular expressions and finite automata.
- Lexical analysis: lexical analyzer; Lex; symbol table.
- Context-free languages and their models: context-free grammars and pushdown automata.
- Syntax analysis: deterministic syntax analysis, FIRST and FOLLOW, LL and LR grammars.
- Deterministic top-down syntax analysis: recursive descent.
- Deterministic bottom-up syntax analysis: simple precedence analysis, LR analysis; Yacc.
- Semantic analysis and intermediate form generation.
- Code generation.
- Chomsky hierarchy and the corresponding models.
- Remarks and summary. Preliminary discussion of the VYP contents.
Midterm. Checking the project solution by the teacher.
To be allowed to take the final exam, the student has to obtain 20 points during the semester; out of these 20 points, at least five points have to be obtained from the project.