Discussion Handouts

Important: If you download the sample code to your PC then transfer it to a Unix machine, you might experience some problems since your web browsers may automatically convert the files into DOS format (which has an extra character for new line). Many Unix programs, including make, lex, and yacc may have difficulty recognizing these files, typically giving errors such as "unexpected ..." To over come this problem, you may either ftp transfer the file to Unix using ASCII mode, or run the following command after transfering the file to Unix:

	dos2unix filename -o filename

Both filename may refer to the same file. There will be some warning messages about keyboard; just ignore them.

• Handout 1 4-4-03
  
  • template Makefile (modify it to fit your needs)
  • template Makefile for lexer only (modify it to fit your needs)
  • word count program (wc.l)
  • lex/yacc example: a simple calculator
    • lexer.l
    • parser.y
• Handout 2 4-11-03
  • Solution to the exercise
    • lexer.l
    • Test input: test.html
  • Additional material on Makefile, Lex, and Yacc
• Handout 3 4-18-03
• Handout 4 4-25-03
  • updated lex/yacc example: a simple calculator w/ MINUS and DIVISION on double precision values
    • common.h
    • lexer.l
    • parser.y
• A reference implementation of project 1
  • Disclaimer: this implementation is for reference only, the author does not guarantee it to be bug-free nor is responsible for the maintenance of it. Users should take their chance of using it. The author does welcome any bug report, but any bug reported might not be fixed. Again, this is just a reference implementation.
• Handout 5 5-2-03
• Handout 6 5-9-03
  • updated lex/yacc example: a simple calculator w/ MINUS and DIV on double precision values using %union passing.
    • lexer.l
    • parser.y
• Handout 7 5-16-03
• Handout 8 5-23-03
• Handout 9 5-30-03