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8.3 Lex and Yacc

8.3 Lex and Yacc

You may encounter lex and yacc when compiling programs that read configuration files or commands.

  • Lex is a tokenizer that transforms text into numbered tags with labels. The Linux version of lex is named flex. You may need a -ll or -lfl linker flag in conjunction with lex.

  • Yacc is a parser that attempts to read tokens according to a grammar. The GNU parser is bison; to get yacc compatibility, run bison -y. You may need the -ly linker flag.




BackCover
How Linux Works - What Every Super-User Should Know
Chapter 1: The Basics
Chapter 2: Devices, Disks, Filesystems, and the Kernel
Chapter 3: How Linux Boots
Chapter 4: Essential System Files, Servers, and Utilities
Chapter 5: Configuring Your Network
Chapter 6: Network Services
Chapter 7: Introduction to Shell Scripts
Chapter 8: Development Tools
8.2 Debuggers
8.3 Lex and Yacc
8.4 Scripting Languages
8.5 Java
8.6 Assembly Code and How a Compiler Works
Chapter 9: Compiling Software From Source Code
Chapter 10: Maintaining the Kernel
Chapter 11: Configuring and Manipulating Peripheral Devices
Chapter 12: Printing
Chapter 13: Backups
Chapter 14: Sharing Files with Samba
Chapter 15: Network File Transfer
Chapter 16: User Environments
Chapter 17: Buying Hardware for Linux
Chapter 18: Further Directions
Appendix A: Command Classification
Bibliography
List of Figures
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