Category : C Source Code
Archive   : CPAREN.ZIP
Filename : CPAREN.DOC

CPAREN(4/12/83) UNIX 5.0 (Tek local) CPAREN(4/12/83)



NAME
cparen - add parentheses to C expressions

SYNOPSIS
cparen [ -t types ]

DESCRIPTION
Written for those of us who can never remember the
precedence and associativity of operators in C, cparen reads
lines of C code from standard-in, adds parentheses to
indicate operator binding in expressions, then writes the
resultant code to standard-out.

The input code fragment need not contain complete
statements. For example, the following line is a valid
input to cparen:
} else if (x->d_prep > 56 && x->d_assoc == LEFT)

Normally, cparen considers identifiers in expressions to be
variable names. The -t option allows you to specify a
whitespace-separated list of types. For example,
cparen -t 'amap anop'
Declares "amap" and "anop" as type names rather than
variable names.

DIAGNOSTICS
Exit status is 2 if cparen was invoked improperly, 1 if some
other error occurred, 0 if all went well.

AUTHOR
Brad Needham, Tektronix, Inc.

Copyright (c) 1984 by Tektronix, Incorporated Beaverton,
Oregon 97077 All rights reserved.

Permission is hereby granted for personal, non-commercial
reproduction and use of this program, provided that this
notice is included in any copy.

BUGS
Cparen assumes that the input code fragment came from a
syntactically correct C program -- it does not attempt to
give reasonable syntax-error messages.

Because cparen focuses on C statments it does not recognize
other constructs e.g. variable or function declarations.
It cannot process a whole C program.

The input is not filtered through the C preprocessor.






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