kninnug / C.5

An extended version of C: C-and-a-half

C.5

An extended version of C: C-and-a-half

Duff parser (assignment 2)

Named after Duff's device, which it can parse! (Amongst other things.)

Use make (or make ass2) (for 'assignment 2' of course, what else?!) to build the parser, the Makefile might not be entirely correct, so use make -B ass2 when in doubt. By default it assumes the source code for Accent is in accent/, and is already built (so go to accent/accent and run make before trying to build the parser).

It generates an ass2 executable which takes two optional arguments: the first is the input file (stdin when not provided) and the second is the output (stdout when not provided).

The parser will parse the input (-file) and produce a LaTeX-pretty printed output (-file) without \\begin{document} so it can be included directly into existing TeX files.

Overview of files:

• ass2.flex - Lexer-specification to be run through Flex
• ass2.acc - Parser-specification for Accent
• auxil.c - main function resides here
• parser.h - Common definitions for scanner & parser
• samples.c - Some example C-code
• pretty.tex - Result of running ass2 with samples.c as input
• report.tex - The report's source file (does an include on pretty.tex)
• Makefile - Builds (only) the parser
• accent/* - Contains the (modified) Accent Compiler Compiler source