Amiga-Request@cs.odu.edu (Amiga Sources/Binaries Moderator) (01/18/90)
Submitted-by: Olaf 'Rhialto' Seibert <U211344@HNYKUN11.BITNET>
Posting-number: Volume 90, Issue 022
Archive-name: unix/cpp/part01
- A CPP (the Decus one, from a Fish disk) which has had some ANSI
features added. Also comes in handy for compiling NetHack 3.0,
which will be 'final' 'real soon now'.
Freely_Distributable=Greetings(Not_For_Any_Commercial_Purpose)->
Olaf.Seibert;
#!/bin/sh
# This is a shell archive. Remove anything before this line, then unpack
# it by saving it into a file and typing "sh file". To overwrite existing
# files, type "sh file -c". You can also feed this as standard input via
# unshar, or by typing "sh <file", e.g.. If this archive is complete, you
# will see the following message at the end:
# "End of archive 1 (of 5)."
# Contents: Cpp.h cppdef.h makefile org org/contents org/cpp.rno
# org/make.boot org/makefile.txt org/readme org/readme.txt test.c
# Wrapped by tadguy@xanth on Wed Jan 17 19:17:31 1990
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
if test -f 'Cpp.h' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'Cpp.h'\"
else
echo shar: Extracting \"'Cpp.h'\" \(7570 characters\)
sed "s/^X//" >'Cpp.h' <<'END_OF_FILE'
X
X/*
X * I n t e r n a l D e f i n i t i o n s f o r C P P
X *
X * In general, definitions in this file should not be changed.
X */
X
X#ifndef toupper
X#define toupper(c) ((c) + ('A' - 'a'))
X#endif /* no toupper */
X#ifndef tolower
X#define tolower(c) ((c) + ('a' - 'A'))
X#endif /* no tolower */
X
X#ifndef TRUE
X#define TRUE 1
X#define FALSE 0
X#endif
X#ifndef EOS
X/*
X * This is predefined in Decus C
X */
X#define EOS '\0' /* End of string */
X#endif
X#define EOF_CHAR 0 /* Returned by get() on eof */
X#define NULLST ((char *) NULL) /* Pointer to nowhere (linted) */
X#define DEF_NOARGS (-1) /* #define foo vs #define foo() */
X
X/*
X * The following may need to change if the host system doesn't use ASCII.
X */
X#define QUOTE_PARM 0x1C /* Magic quoting operator */
X#define DEF_MAGIC 0x1D /* Magic for #defines */
X#define TOK_SEP 0x1E /* Token concatenation delim. */
X#define COM_SEP 0x1F /* Magic comment separator */
X
X/*
X * Note -- in Ascii, the following will map macro formals onto DEL + the
X * C1 control character region (decimal 128 .. (128 + PAR_MAC)) which will
X * be ok as long as PAR_MAC is less than 33). Note that the last PAR_MAC
X * value is reserved for string substitution.
X */
X
X#define MAC_PARM 0x7F /* Macro formals start here */
X#if PAR_MAC >= 33
X assertion fails -- PAR_MAC isn't less than 33
X#endif
X#define LASTPARM (PAR_MAC - 1)
X
X/*
X * Character type codes.
X */
X
X#define INV 0 /* Invalid, must be zero */
X#define OP_EOE INV /* End of expression */
X#define DIG 1 /* Digit */
X#define LET 2 /* Identifier start */
X#define FIRST_BINOP OP_ADD
X#define OP_ADD 3
X#define OP_SUB 4
X#define OP_MUL 5
X#define OP_DIV 6
X#define OP_MOD 7
X#define OP_ASL 8
X#define OP_ASR 9
X#define OP_AND 10 /* &, not && */
X#define OP_OR 11 /* |, not || */
X#define OP_XOR 12
X#define OP_EQ 13
X#define OP_NE 14
X#define OP_LT 15
X#define OP_LE 16
X#define OP_GE 17
X#define OP_GT 18
X#define OP_ANA 19 /* && */
X#define OP_ORO 20 /* || */
X#define OP_QUE 21 /* ? */
X#define OP_COL 22 /* : */
X#define OP_CMA 23 /* , (relevant?) */
X#define LAST_BINOP OP_CMA /* Last binary operand */
X/*
X * The following are unary.
X */
X#define FIRST_UNOP OP_PLU /* First Unary operand */
X#define OP_PLU 24 /* + (draft ANSI standard) */
X#define OP_NEG 25 /* - */
X#define OP_COM 26 /* ~ */
X#define OP_NOT 27 /* ! */
X#define LAST_UNOP OP_NOT
X#define OP_LPA 28 /* ( */
X#define OP_RPA 29 /* ) */
X#define OP_END 30 /* End of expression marker */
X#define OP_MAX (OP_END + 1) /* Number of operators */
X#define OP_FAIL (OP_END + 1) /* For error returns */
X
X/*
X * The following are for lexical scanning only.
X */
X
X#define QUO 65 /* Both flavors of quotation */
X#define DOT 66 /* . might start a number */
X#define SPA 67 /* Space and tab */
X#define BSH 68 /* Just a backslash */
X#define END 69 /* EOF */
X
X/*
X * These bits are set in ifstack[]
X */
X#define WAS_COMPILING 1 /* TRUE if compile set at entry */
X#define ELSE_SEEN 2 /* TRUE when #else processed */
X#define TRUE_SEEN 4 /* TRUE when #if TRUE processed */
X
X/*
X * Define bits for the basic types and their adjectives
X */
X
X#define T_CHAR 1
X#define T_INT 2
X#define T_FLOAT 4
X#define T_DOUBLE 8
X#define T_SHORT 16
X#define T_LONG 32
X#define T_SIGNED 64
X#define T_UNSIGNED 128
X#define T_PTR 256 /* Pointer */
X#define T_FPTR 512 /* Pointer to functions */
X
X/*
X * The DEFBUF structure stores information about #defined
X * macros. Note that the defbuf->repl information is always
X * in malloc storage.
X */
X
Xtypedef struct defbuf {
X struct defbuf *link; /* Next define in chain */
X char *repl; /* -> replacement */
X int hash; /* Symbol table hash */
X int nargs; /* For define(args) */
X char name[1]; /* #define name */
X} DEFBUF;
X
X/*
X * The FILEINFO structure stores information about open files
X * and macros being expanded.
X */
X
Xtypedef struct fileinfo {
X char *bptr; /* Buffer pointer */
X int line; /* for include or macro */
X FILE *fp; /* File if non-null */
X struct fileinfo *parent; /* Link to includer */
X char *filename; /* File/macro name */
X char *progname; /* From #line statement */
X unsigned int unrecur; /* For macro recursion */
X char buffer[1]; /* current input line */
X} FILEINFO;
X
X/*
X * The SIZES structure is used to store the values for #if sizeof
X */
X
Xtypedef struct sizes {
X short bits; /* If this bit is set, */
X short size; /* this is the datum size value */
X short psize; /* this is the pointer size */
X} SIZES;
X/*
X * nomacarg is a built-in #define on Decus C.
X */
X
X#ifdef nomacarg
X#define cput output /* cput concatenates tokens */
X#else
X#if COMMENT_INVISIBLE
X#define cput(c) { if (c != TOK_SEP && c != COM_SEP) putchar(c); }
X#else
X#define cput(c) { if (c != TOK_SEP) putchar(c); }
X#endif
X#endif
X
X#ifndef nomacarg
X#define streq(s1, s2) (strcmp(s1, s2) == 0)
X#endif
X
X/*
X * Error codes. VMS uses system definitions.
X * Decus C codes are defined in stdio.h.
X * Others are cooked to order.
X */
X
X#if HOST == SYS_VMS
X#include <ssdef.h>
X#include <stsdef.h>
X#define IO_NORMAL (SS$_NORMAL | STS$M_INHIB_MSG)
X#define IO_ERROR SS$_ABORT
X#endif
X/*
X * Note: IO_NORMAL and IO_ERROR are defined in the Decus C stdio.h file
X */
X#ifndef IO_NORMAL
X#define IO_NORMAL 0
X#endif
X#ifndef IO_ERROR
X#define IO_ERROR 1
X#endif
X
X/*
X * Externs
X */
X
Xextern int line; /* Current line number */
Xextern int wrongline; /* Force #line to cc pass 1 */
Xextern char type[]; /* Character classifier */
Xextern char *tokenbuf; /* Current input token */
Xextern int tokenbsize; /* Current size allocated in tokenbuf
X (not counting 1 byte for zero) */
Xextern int instring; /* TRUE if scanning string */
Xextern int inmacro; /* TRUE if scanning #define */
Xextern int errors; /* Error counter */
Xextern int recursion; /* Macro depth counter */
Xextern char ifstack[BLK_NEST]; /* #if information */
X#define compiling ifstack[0]
Xextern char *ifptr; /* -> current ifstack item */
Xextern char *incdir[NINCLUDE]; /* -i directories */
Xextern char **incend; /* -> active end of incdir */
Xextern int cflag; /* -C option (keep comments) */
Xextern int eflag; /* -E option (ignore errors) */
Xextern int nflag; /* -N option (no pre-defines) */
Xextern int wflag; /* -W write #defines at end */
Xextern int rec_recover; /* unwind recursive macros */
Xextern char *preset[]; /* Standard predefined symbols */
Xextern char *magic[]; /* Magic predefined symbols */
Xextern FILEINFO *infile; /* Current input file */
Xextern char work[NWORK + 1]; /* #define scratch */
Xextern char *workp; /* Free space in work */
X#if DEBUG
Xextern int debug; /* Debug level */
X#endif
Xextern int keepcomments; /* Don't remove comments if set */
Xextern SIZES size_table[]; /* For #if sizeof sizes */
Xextern char *getmem(); /* Get memory or die. */
X
X#ifndef amiga /* Should track usage in cpp6.c */
Xextern char *incmem(); /* Increase size of block or die. */
X#endif
X
Xextern DEFBUF *lookid(); /* Look for a #define'd thing */
Xextern DEFBUF *defendel(); /* Symbol table enter/delete */
Xextern char *savestring(); /* Stuff string in malloc mem. */
Xextern char *strcpy();
Xextern char *strncpy();
Xextern char *strcat();
Xextern char *strrchr();
Xextern char *strchr();
Xextern long time();
Xextern char *sprintf(); /* Lint needs this */
Xextern void free ();
Xextern void exit ();
END_OF_FILE
if test 7570 -ne `wc -c <'Cpp.h'`; then
echo shar: \"'Cpp.h'\" unpacked with wrong size!
fi
# end of 'Cpp.h'
fi
if test -f 'cppdef.h' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'cppdef.h'\"
else
echo shar: Extracting \"'cppdef.h'\" \(10891 characters\)
sed "s/^X//" >'cppdef.h' <<'END_OF_FILE'
X/* Special macro based debugging package */
X/* Fred Fish, 14-Mar-86 */
X#ifdef DBUG
X# include <local/dbug.h>
X#else
X# define DBUG_ENTER(a1)
X# define DBUG_RETURN(a1) return(a1)
X# define DBUG_VOID_RETURN return
X# define DBUG_EXECUTE(keyword,a1)
X# define DBUG_2(keyword,format)
X# define DBUG_3(keyword,format,a1)
X# define DBUG_4(keyword,format,a1,a2)
X# define DBUG_5(keyword,format,a1,a2,a3)
X# define DBUG_PUSH(a1)
X# define DBUG_POP()
X# define DBUG_PROCESS(a1)
X# define DBUG_FILE (stderr)
X# define DBUG_SETJMP setjmp
X# define DBUG_LONGJMP longjmp
X#endif
X
X#ifdef EMACS
X
X/* Use the Emacs config file to find out what type of machine */
X
X#define NO_SHORTNAMES
X#include "../src/config.h"
X
X/* Convert Emacs's conventions for BIG_ENDIAN to cpp's convention. */
X#ifdef BIG_ENDIAN
X#undef BIG_ENDIAN
X#define BIG_ENDIAN TRUE
X#else /* not BIG_ENDIAN */
X#define BIG_ENDIAN FALSE
X#endif /* BIG_ENDIAN */
X
X/* Emacs uses the names index and rindex and defines them as str(r)chr if nec;
X cpp uses the opposite convention. Here we flush the macro definitions for
X Emacs and add the ones cpp wants. */
X
X#ifdef index
X#undef index
X#undef rindex
X#else /* index is not defined as a macro */
X#define strchr index
X#define strrchr rindex
X#endif /* index is not defined as a macro */
X
X#define NBUFF 2048
X#define NWORK 2048
X
X#endif /* EMACS */
X
X/*
X * S y s t e m D e p e n d e n t
X * D e f i n i t i o n s f o r C P P
X *
X * Definitions in this file may be edited to configure CPP for particular
X * host operating systems and target configurations.
X *
X * NOTE: cpp assumes it is compiled by a compiler that supports macros
X * with arguments. If this is not the case (as for Decus C), #define
X * nomacarg -- and provide function equivalents for all macros.
X *
X * cpp also assumes the host and target implement the Ascii character set.
X * If this is not the case, you will have to do some editing here and there.
X */
X
X/*
X * This redundant definition of TRUE and FALSE works around
X * a limitation of Decus C.
X */
X#ifndef TRUE
X#define TRUE 1
X#define FALSE 0
X#endif
X
X/*
X * Define the HOST operating system. This is needed so that
X * cpp can use appropriate filename conventions.
X */
X#define SYS_UNKNOWN 0
X#define SYS_UNIX 1
X#define SYS_VMS 2
X#define SYS_RSX 3
X#define SYS_RT11 4
X#define SYS_LATTICE 5
X#define SYS_ONYX 6
X#define SYS_68000 7
X#define SYS_AMIGADOS 8
X
X#ifndef HOST
X#ifdef unix
X#define HOST SYS_UNIX
X#else
X#ifdef vms
X#define HOST SYS_VMS
X#else
X#ifdef rsx
X#define HOST SYS_RSX
X#else
X#ifdef rt11
X#define HOST SYS_RT11
X#else
X#ifdef amiga
X#define HOST SYS_AMIGADOS
X#endif
X#endif
X#endif
X#endif
X#endif
X#endif
X
X#ifndef HOST
X#define HOST SYS_UNKNOWN
X#endif
X
X/*
X * We assume that the target is the same as the host system
X */
X#ifndef TARGET
X#define TARGET HOST
X#endif
X
X/*
X * In order to predefine machine-dependent constants,
X * several strings are defined here:
X *
X * MACHINE defines the target cpu (by name)
X * SYSTEM defines the target operating system
X * COMPILER defines the target compiler
X *
X * The above may be #defined as "" if they are not wanted.
X * They should not be #defined as NULL.
X *
X * LINE_PREFIX defines the # output line prefix, if not "line"
X * This should be defined as "" if cpp is to replace
X * the "standard" C pre-processor.
X *
X * FILE_LOCAL marks functions which are referenced only in the
X * file they reside. Some C compilers allow these
X * to be marked "static" even though they are referenced
X * by "extern" statements elsewhere.
X *
X * OK_DOLLAR Should be set TRUE if $ is a valid alphabetic character
X * in identifiers (default), or zero if $ is invalid.
X * Default is TRUE.
X *
X * OK_CONCAT Should be set TRUE if # may be used to concatenate
X * tokens in macros (per the Ansi Draft Standard) or
X * FALSE for old-style # processing (needed if cpp is
X * to process assembler source code).
X *
X * OK_DATE Predefines the compilation date if set TRUE.
X * Not permitted by the Nov. 12, 1984 Draft Standard.
X *
X * OK_SIZEOF Permits sizeof in #if preprocessor expressions.
X * According to K&R V2 (page 232), this is not allowed.
X *
X * S_CHAR etc. Define the sizeof the basic TARGET machine word types.
X * By default, sizes are set to the values for the HOST
X * computer. If this is inappropriate, see the code in
X * cpp3.c for details on what to change. Also, if you
X * have a machine where sizeof (signed int) differs from
X * sizeof (unsigned int), you will have to edit code and
X * tables in cpp3.c (and extend the -S option definition.)
X *
X * CPP_LIBRARY May be defined if you have a site-specific include directory
X * which is to be searched *before* the operating-system
X * specific directories.
X */
X
X#if TARGET == SYS_LATTICE
X/*
X * We assume the operating system is pcdos for the IBM-PC.
X * We also assume the small model (just like the PDP-11)
X */
X#define MACHINE "i8086"
X#define SYSTEM "pcdos"
X#endif
X
X#if TARGET == SYS_ONYX
X#define MACHINE "z8000"
X#define SYSTEM "unix"
X#endif
X
X#if TARGET == SYS_VMS
X#define MACHINE "vax"
X#define SYSTEM "vms"
X#define COMPILER "vax11c"
X#endif
X
X#if TARGET == SYS_RSX
X#define MACHINE "pdp11"
X#define SYSTEM "rsx"
X#define COMPILER "decus"
X#endif
X
X#if TARGET == SYS_RT11
X#define MACHINE "pdp11"
X#define SYSTEM "rt11"
X#define COMPILER "decus"
X#endif
X
X#if TARGET == SYS_AMIGADOS
X#define MACHINE "amiga", "m68000"
X#define SYSTEM "amigados"
X#ifdef manx
X#define COMPILER "manx"
X#endif
X#ifdef lattice
X#define COMPILER "lattice"
X#endif
X#ifdef pdc
X#define COMPILER "pdc", "__PDC__"
X#endif
X#endif
X
X#if TARGET == SYS_68000
X/*
X * All three machine designators have been seen in various systems.
X * Warning -- compilers differ as to sizeof (int). cpp3 assumes that
X * sizeof (int) == 2
X */
X#define MACHINE "M68000", "m68000", "m68k"
X#define SYSTEM "unix"
X#endif
X
X#if TARGET == SYS_UNIX
X#define SYSTEM "unix"
X#ifdef pdp11
X#define MACHINE "pdp11"
X#endif
X#ifdef vax
X#define MACHINE "vax"
X#endif
X#endif
X
X/*
X * defaults
X */
X
X#ifndef MSG_PREFIX
X#define MSG_PREFIX "cpp: "
X#endif
X
X#ifndef LINE_PREFIX
X#ifdef decus
X#define LINE_PREFIX ""
X#else
X#define LINE_PREFIX "line"
X#endif
X#endif
X
X/*
X * OLD_PREPROCESSOR forces the definition of OK_DOLLAR, OK_CONCAT,
X * COMMENT_INVISIBLE, and STRING_FORMAL to values appropriate for
X * an old-style preprocessor.
X */
X
X#if OLD_PREPROCESSOR
X#define OK_DOLLAR FALSE
X#define OK_CONCAT FALSE
X#define COMMENT_INVISIBLE TRUE
X#define STRING_FORMAL TRUE
X#endif
X
X/*
X * RECURSION_LIMIT may be set to -1 to disable the macro recursion test.
X */
X#ifndef RECURSION_LIMIT
X#define RECURSION_LIMIT 1000
X#endif
X
X/*
X * BITS_CHAR may be defined to set the number of bits per character.
X * it is needed only for multi-byte character constants.
X */
X#ifndef BITS_CHAR
X#define BITS_CHAR 8
X#endif
X
X/*
X * BIG_ENDIAN is set TRUE on machines (such as the IBM 360 series)
X * where 'ab' stores 'a' in the high-bits and 'b' in the low-bits.
X * It is set FALSE on machines (such as the PDP-11 and Vax-11)
X * where 'ab' stores 'a' in the low-bits and 'b' in the high-bits.
X * (Or is it the other way around?) -- Warning: BIG_ENDIAN code is untested.
X * [I *seems* to be the other way around, according to the code /OIS]
X */
X#ifndef BIG_ENDIAN
X#define BIG_ENDIAN FALSE
X#endif
X
X/*
X * COMMENT_INVISIBLE may be defined to allow "old-style" comment
X * processing, whereby the comment becomes a zero-length token
X * delimiter. This permitted tokens to be concatenated in macro
X * expansions. This was removed from the Draft Ansi Standard.
X */
X#ifndef COMMENT_INVISIBLE
X#define COMMENT_INVISIBLE FALSE
X#endif
X
X/*
X * STRING_FORMAL may be defined to allow recognition of macro parameters
X * anywhere in replacement strings. This was removed from the Draft Ansi
X * Standard and a limited recognition capability added.
X */
X#ifndef STRING_FORMAL
X#define STRING_FORMAL FALSE
X#endif
X
X/*
X * OK_DOLLAR enables use of $ as a valid "letter" in identifiers.
X * This is a permitted extension to the Ansi Standard and is required
X * for e.g., VMS, RSX-11M, etc. It should be set FALSE if cpp is
X * used to preprocess assembler source on Unix systems. OLD_PREPROCESSOR
X * sets OK_DOLLAR FALSE for that reason.
X */
X#ifndef OK_DOLLAR
X#define OK_DOLLAR TRUE
X#endif
X
X/*
X * OK_CONCAT enables (one possible implementation of) token concatenation.
X * If cpp is used to preprocess Unix assembler source, this should be
X * set FALSE as the concatenation character, #, is used by the assembler.
X */
X#ifndef OK_CONCAT
X#define OK_CONCAT TRUE
X#endif
X
X/*
X * OK_DATE may be enabled to predefine today's date as a string
X * at the start of each compilation. This is apparently not permitted
X * by the Draft Ansi Standard.
X */
X#ifndef OK_DATE
X#define OK_DATE TRUE
X#endif
X
X/*
X * OK_SIZEOF may be defined to allow sizeof(type) in #if expressions.
X * Actually, it is none of the preprocessors business how large these
X * things are, as they might be different with different compiler
X * options. Also, according to K&R V2, page 232, it is nonstandard.
X * This option was added in the PDC process, under no. *OIS*0.92*.
X */
X#ifndef OK_SIZEOF
X#define OK_SIZEOF FALSE
X#endif
X
X/*
X * Some common definitions.
X */
X
X#ifndef DEBUG
X#define DEBUG FALSE
X#endif
X
X/*
X * The following definitions are used to allocate memory for
X * work buffers. In general, they should not be modified
X * by implementors.
X *
X * PAR_MAC The maximum number of #define parameters (31 per Standard)
X * Note: we need another one for strings.
X * NBUFF Input buffer size
X * NWORK Work buffer size -- the longest macro
X * must fit here after expansion.
X * NEXP The nesting depth of #if expressions
X * NINCLUDE The number of directories that may be specified
X * on a per-system basis, or by the -I option.
X * BLK_NEST The number of nested #if's permitted.
X */
X
X#ifndef PAR_MAC
X#define PAR_MAC (31 + 1)
X#endif
X
X#ifndef NBUFF
X#define NBUFF 512
X#endif
X
X#ifndef NWORK
X#define NWORK 512
X#endif
X
X#ifndef NEXP
X#define NEXP 128
X#endif
X
X#ifndef NINCLUDE
X#define NINCLUDE 7
X#endif
X
X#ifndef NPARMWORK
X#define NPARMWORK (NWORK * 2)
X#endif
X
X#ifndef BLK_NEST
X#define BLK_NEST 32
X#endif
X
X
X/*
X * Some special constants. These may need to be changed if cpp
X * is ported to a wierd machine.
X *
X * NOTE: if cpp is run on a non-ascii machine, ALERT and VT may
X * need to be changed. They are used to implement the proposed
X * ANSI standard C control characters '\a' and '\v' only.
X * DEL is used to tag macro tokens to prevent #define foo foo
X * from looping. Note that we don't try to prevent more elaborate
X * #define loops from occurring.
X */
X
X#ifndef ALERT
X#define ALERT '\007' /* '\a' is "Bell" */
X#endif
X
X#ifndef VT
X#define VT '\013' /* Vertical Tab CTRL/K */
X#endif
X
X
X#ifndef FILE_LOCAL
X#ifdef decus
X#define FILE_LOCAL static
X#else
X#ifdef vax11c
X#define FILE_LOCAL static
X#else
X#define FILE_LOCAL /* Others are global */
X#endif
X#endif
X#endif
END_OF_FILE
if test 10891 -ne `wc -c <'cppdef.h'`; then
echo shar: \"'cppdef.h'\" unpacked with wrong size!
fi
# end of 'cppdef.h'
fi
if test -f 'makefile' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'makefile'\"
else
echo shar: Extracting \"'makefile'\" \(4001 characters\)
sed "s/^X//" >'makefile' <<'END_OF_FILE'
X# Makefile for cpp
X#
X# On certain systems, such as Unix System III, you may need to define
X# $(LINTFLAGS) in the make command line to set system-specific lint flags.
X#
X# This Makefile assumes cpp will replace the "standard" preprocessor.
X# Delete the reference to -DLINE_PREFIX=\"\" if cpp is used stand-alone.
X# LINEFIX is a sed script filter that reinserts #line -- used for testing
X# if LINE_PREFIX is set to "". Note that we must stand on our heads to
X# match the # and a line had better not begin with $. By the way, what
X# we really want is
X# LINEFIX = | sed "s/^#/#line/"
X#
X#CPPDEFINE = -DLINE_PREFIX=\"\"
X#LINEFIX = | sed "s/^[^ !\"%-~]/&line/"
X#
X# Define OLD_PREPROCESSOR non-zero to make a preprocessor which is
X# "as compatible as possible" with the standard Unix V7 or Ultrix
X# preprocessors. This is needed to rebuild 4.2bsd, for example, as
X# the preprocessor is used to modify assembler code, rather than C.
X# This is not recommended for current development. OLD_PREPROCESSOR
X# forces the following definitions:
X# OK_DOLLAR FALSE $ is not allowed in variables
X# OK_CONCAT FALSE # cannot concatenate tokens
X# COMMENT_INVISIBLE TRUE old-style comment concatenation
X# STRING_FORMAL TRUE old-style string expansion
X#
X# The following kludge bypasses the need for Fred's cc program by
X# invoking the cpp front end cpp preprocessor. The intermediate file
X# is stored in ram, pre-appended with an underscore. Manx's cc program
X# is then invoked on the intermediate file. The amigados delete command
X# kills the intermediate file.
X
X#OLDDEFINE = -DOLD_PREPROCESSOR=1
XHOST = -Damiga -Dpdc
XEMACS =
XDEBUGFLAG =
XLDFLAGS =
X#
X# DEFINES collects all -D arguments for cc and lint:
X# Change DEFINES = $(CPPDEFINE) $(OLDDEFINE)
X# for an old-style preprocessor.
X# If being used for GNU Emacs, the macro EMACS will be defined as -DEMACS.
X#
XDEFINES = $(OLDDEFINE) $(EMACS) $(HOST)
X
XCC = cc
X#DEBUGFLAG = -g
XCFLAGS = $(DEBUGFLAG) $(DEFINES) $(CPPDEFINE)
XLIBS = -lc32
X
X.c.o:
X OldCpp $(CFLAGS) $*.c ram:_$*.c
X cc +L -o $*.o ram:_$*.c
X delete ram:_$*.c
X
X# ** compile cpp
X#
XSRCS = cpp1.c cpp2.c cpp3.c cpp4.c cpp5.c cpp6.c
XOBJS = cpp1.o cpp2.o cpp3.o cpp4.o cpp5.o cpp6.o
X
Xcpp : $(OBJS)
X ln -o Cpp $(LDFLAGS) $(OBJS) $(LIBS)
X
X#
X# ** Test cpp by preprocessing itself, compiling the result,
X# ** repeating the process and diff'ing the result. Note: this
X# ** is not a good test of cpp, but a simple verification.
X# ** The diff's should not report any changes.
X# ** Note that a sed script may be executed for each compile
X#
Xtest :
X cpp cpp1.c $(LINEFIX) >old.tmp1.c
X cpp cpp2.c $(LINEFIX) >old.tmp2.c
X cpp cpp3.c $(LINEFIX) >old.tmp3.c
X cpp cpp4.c $(LINEFIX) >old.tmp4.c
X cpp cpp5.c $(LINEFIX) >old.tmp5.c
X cpp cpp6.c $(LINEFIX) >old.tmp6.c
X $(CC) $(CFLAGS) old.tmp[123456].c
X a.out cpp1.c >new.tmp1.c
X a.out cpp2.c >new.tmp2.c
X a.out cpp3.c >new.tmp3.c
X a.out cpp4.c >new.tmp4.c
X a.out cpp5.c >new.tmp5.c
X a.out cpp6.c >new.tmp6.c
X diff old.tmp1.c new.tmp1.c
X diff old.tmp2.c new.tmp2.c
X diff old.tmp3.c new.tmp3.c
X diff old.tmp4.c new.tmp4.c
X diff old.tmp5.c new.tmp5.c
X diff old.tmp6.c new.tmp6.c
X rm a.out old.tmp[123456].* new.tmp[123456].*
X
X#
X# A somewhat more extensive test is provided by the "clock"
X# program (which is not distributed). Substitute your favorite
X# macro-rich program here.
X#
Xclock : clock.c cpp
X cpp clock.c $(LINEFIX) >temp.cpp.c
X cc temp.cpp.c -lcurses -ltermcap -o clock
X rm temp.cpp.c
X
X#
X# ** Lint the code
X#
X
Xlint : $(SRCS)
X lint $(LINTFLAGS) $(DEFINES) $(SRCS)
X
X#
X# ** Remove unneeded files
X#
Xclean :
X rm -f $(OBJS) cpp
X
X#
X# ** Rebuild the archive files needed to distribute cpp
X# ** Uses the Decus C archive utility.
X#
X
Xarchc : archc.c
X $(CC) $(CFLAGS) archc.c -o archc
X
Xarchx : archx.c
X $(CC) $(CFLAGS) archx.c -o archx
X
Xarchive : archc
X archc readme.txt cpp.mem archx.c archc.c cpp.rno makefile.txt \
X cpp*.h >cpp1.arc
X archc cpp1.c cpp2.c cpp3.c >cpp2.arc
X archc cpp4.c cpp5.c cpp6.c >cpp3.arc
X
X#
X# Object module dependencies
X#
X
X$(OBJS) : cpp.h cppdef.h
END_OF_FILE
if test 4001 -ne `wc -c <'makefile'`; then
echo shar: \"'makefile'\" unpacked with wrong size!
fi
# end of 'makefile'
fi
if test ! -d 'org' ; then
echo shar: Creating directory \"'org'\"
mkdir 'org'
fi
if test -f 'org/contents' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/contents'\"
else
echo shar: Extracting \"'org/contents'\" \(107 characters\)
sed "s/^X//" >'org/contents' <<'END_OF_FILE'
XAn implementation of cpp (C Preprocessor) as distributed
Xby DECUS. This version was done by Martin Minow.
END_OF_FILE
if test 107 -ne `wc -c <'org/contents'`; then
echo shar: \"'org/contents'\" unpacked with wrong size!
fi
# end of 'org/contents'
fi
if test -f 'org/cpp.rno' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/cpp.rno'\"
else
echo shar: Extracting \"'org/cpp.rno'\" \(8099 characters\)
sed "s/^X//" >'org/cpp.rno' <<'END_OF_FILE'
X.lm 8.rm 72.nhy
X
X.no autosubtitle .style headers 3,0,0
X.pg.uc.ps 58,80.lm 8.rm 72
X.hd
X.hd mixed
X.head mixed
X
X.st ########cpp#####C Pre-Processor
X.pg
X.hl 1 ^&C Pre-Processor\&
X.s 2
X.c ;*******
X.c ;* cpp *
X.c ;*******
X.s 2
X.lm +8
X.s.i -8;NAME: cpp -- C Pre-Processor
X.s.f
X.i -8;SYNOPSIS:
X.s.nf
Xcpp [-options] [infile [outfile]]
X.s.f
X.i -8;DESCRIPTION:
X.s
XCPP reads a C source file, expands macros and include
Xfiles, and writes an input file for the C compiler.
XIf no file arguments are given, CPP reads from stdin
Xand writes to stdout. If one file argument is given,
Xit will define the input file, while two file arguments
Xdefine both input and output files. The file name "-"
Xis a synonym for stdin or stdout as appropriate.
X.s
XThe following options are supported. Options may
Xbe given in either case.
X.lm +16
X.p -16
X-C If set, source-file comments are written
Xto the output file. This allows the output of CPP to be
Xused as the input to a program, such as lint, that expects
Xcommands embedded in specially-formatted comments.
X.p -16
X-Dname=value Define the name as if the programmer wrote
X.s
X.nf
X _#define name value
X.s
X.fill
Xat the start of the first file. If "=value" is not
Xgiven, a value of "1" will be used.
X.s
XOn non-unix systems, all alphabetic text will be forced
Xto upper-case.
X.p -16
X-E Always return "success" to the operating
Xsystem, even if errors were detected. Note that some fatal
Xerrors, such as a missing _#include file, will terminate
XCPP, returning "failure" even if the -E option is given.
X.p -16
X-Idirectory Add this directory to the list of
Xdirectories searched for _#include "..." and _#include <...>
Xcommands. Note that there is no space between the
X"-I" and the directory string. More than one -I command
Xis permitted. On non-Unix systems "directory" is forced
Xto upper-case.
X.p -16
X-N CPP normally predefines some symbols defining
Xthe target computer and operating system. If -N is specified,
Xno symbols will be predefined. If -N -N is specified, the
X"always present" symbols, ____LINE____, ____FILE____, and ____DATE____
Xare not defined.
X.p -16
X-Stext CPP normally assumes that the size of
Xthe target computer's basic variable types is the same as the size
Xof these types of the host computer. (This can be overridden
Xwhen CPP is compiled, however.) The -S option allows dynamic
Xrespecification of these values. "text" is a string of
Xnumbers, separated by commas, that specifies correct sizes.
XThe sizes must be specified in the exact order:
X.s
X.nf
X char short int long float double
X.s
X.fill
XIf you specify the option as "-S*text", pointers to these
Xtypes will be specified. -S* takes one additional argument
Xfor pointer to function (e.g. int (*)())
X.s
XFor example, to specify sizes appropriate for a PDP-11,
Xyou would write:
X.s
X.nf
X c s i l f d func
X -S1,2,2,2,4,8,
X -S*2,2,2,2,2,2,2
X.s
X.fill
XNote that all values must be specified.
X.p -16
X-Uname Undefine the name as if
X.s
X.nf
X _#undef name
X.s
X.fill
Xwere given. On non-Unix systems, "name" will be forced to
Xupper-case.
X.p -16
X-Xnumber Enable debugging code. If no value is
Xgiven, a value of 1 will be used. (For maintenence of
XCPP only.)
X.s.lm -16
X.s
X.i -8;PRE-DEFINED VARIABLES:
X.s
XWhen CPP begins processing, the following variables will
Xhave been defined (unless the -N option is specified):
X.s
XTarget computer (as appropriate):
X.s
X.nf
X pdp11, vax, M68000 m68000 m68k
X.fill
X.s
XTarget operating system (as appropriate):
X.s
X.nf
X rsx, rt11, vms, unix
X.fill
X.s
XTarget compiler (as appropriate):
X.s
X.nf
X decus, vax11c
X.fill
X.s
XThe implementor may add definitions to this list.
XThe default definitions match the definition of the
Xhost computer, operating system, and C compiler.
X.s
XThe following are always available unless undefined (or
X-N was specified twice):
X.lm +16
X.p -12
X____FILE____ The input (or _#include) file being compiled
X(as a quoted string).
X.p -12
X____LINE____ The line number being compiled.
X.p -12
X____DATE____ The date and time of compilation as
Xa Unix ctime quoted string (the trailing newline is removed).
XThus,
X.s
X.nf
X printf("Bug at line _%s,", ____LINE____);
X printf(" source file _%s", ____FILE____);
X printf(" compiled on _%s", ____DATE____);
X.fill
X.s.lm -16
X.s
X.i -8;DRAFT PROPOSED ANSI STANDARD CONSIDERATIONS:
X.s
XThe current version of the Draft Proposed Standard
Xexplicitly states that "readers are requested not to specify
Xor claim conformance to this draft." Readers and users
Xof Decus CPP should not assume that Decus CPP conforms
Xto the standard, or that it will conform to the actual
XC Language Standard.
X.s
XWhen CPP is itself compiled, many features of the Draft
XProposed Standard that are incompatible with existing
Xpreprocessors may be disabled. See the comments in CPP's
Xsource for details.
X.s
XThe latest version of the Draft Proposed Standard (as reflected
Xin Decus CPP) is dated November 12, 1984.
X.s
XComments are removed from the input text. The comment
Xis replaced by a single space character. The -C option
Xpreserves comments, writing them to the output file.
X.s
XThe '$' character is considered to be a letter. This is
Xa permitted extension.
X.s
XThe following new features of C are processed by CPP:
X.s.comment Note: significant spaces, not tabs, .br quotes #if, #elif
X.br;####_#elif expression (_#else _#if)
X.br;####'_\xNNN' (Hexadecimal constant)
X.br;####'_\a' (Ascii BELL)
X.br;####'_\v' (Ascii Vertical Tab)
X.br;####_#if defined NAME 1 if defined, 0 if not
X.br;####_#if defined (NAME) 1 if defined, 0 if not
X.br;####_#if sizeof (basic type)
X.br;####unary +
X.br;####123U, 123LU Unsigned ints and longs.
X.br;####12.3L Long double numbers
X.br;####token_#token Token concatenation
X.br;####_#include token Expands to filename
X.s
XThe Draft Proposed Standard has extended C, adding a constant
Xstring concatenation operator, where
X.s
X.nf
X "foo" "bar"
X.s
X.fill
Xis regarded as the single string "foobar". (This does not
Xaffect CPP's processing but does permit a limited form of
Xmacro argument substitution into strings as will be discussed.)
X.s
XThe Standard Committee plans to add token concatenation
Xto _#define command lines. One suggested implementation
Xis as follows: the sequence "Token1_#Token2" is treated
Xas if the programmer wrote "Token1Token2". This could
Xbe used as follows:
X.s
X.nf
X _#line 123
X _#define ATLINE foo_#____LINE____
X.s
X.fill
XATLINE would be defined as foo123.
X.s
XNote that "Token2" must either have the format of an
Xidentifier or be a string of digits. Thus, the string
X.s
X.nf
X _#define ATLINE foo_#1x3
X.s
X.fill
Xgenerates two tokens: "foo1" and "x3".
X.s
XIf the tokens T1 and T2 are concatenated into T3,
Xthis implementation operates as follows:
X.s
X.nf
X 1. Expand T1 if it is a macro.
X 2. Expand T2 if it is a macro.
X 3. Join the tokens, forming T3.
X 4. Expand T3 if it is a macro.
X.s
X.fill
XA macro formal parameter will be substituted into a string
Xor character constant if it is the only component of that
Xconstant:
X.s
X.nf
X _#define VECSIZE 123
X _#define vprint(name, size) _\
X printf("name" "[" "size" "] = {_\n")
X ... vprint(vector, VECSIZE);
X.s
X.fill
Xexpands (effectively) to
X.s
X.nf
X vprint("vector[123] = {_\n");
X.s
X.fill
XNote that this will be useful if your C compiler supports
Xthe new string concatenation operation noted above.
XAs implemented here, if you write
X.s
X.nf
X _#define string(arg) "arg"
X ... string("foo") ...
X.s
X.fill
XThis implementation generates "foo", rather than the strictly
Xcorrect ""foo"" (which will probably generate an error message).
XThis is, strictly speaking, an error in CPP and may be removed
Xfrom future releases.
X.s
X.i -8;ERROR MESSAGES:
X.s
XMany. CPP prints warning or error messages if you try to
Xuse multiple-byte character constants (non-transportable)
Xif you _#undef a symbol that was not defined, or if your
Xprogram has potentially nested comments.
X.s
X.i -8;AUTHOR:
X.s
XMartin Minow
X.s
X.i -8;BUGS:
X.s
XThe _#if expression processor uses signed integers only.
XI.e, _#if 0xFFFFu < 0 may be TRUE.
X.s
X.lm 8.rm 72.nhy
X
END_OF_FILE
if test 8099 -ne `wc -c <'org/cpp.rno'`; then
echo shar: \"'org/cpp.rno'\" unpacked with wrong size!
fi
# end of 'org/cpp.rno'
fi
if test -f 'org/make.boot' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/make.boot'\"
else
echo shar: Extracting \"'org/make.boot'\" \(579 characters\)
sed "s/^X//" >'org/make.boot' <<'END_OF_FILE'
X# Note: ccx is a cc frontend that knows about the preprocessor.
X
XCC = cc/ccx
XCFLAGS = -DHOST=SYS_AMIGADOS -DOLD_PREPROCESSOR=1
XOBJS = cpp1.o cpp2.o cpp3.o cpp4.o cpp5.o cpp6.o
X
Xncpp : $(OBJS)
X $(CC) -o ncpp $(OBJS)
X
Xcpp1.o : cpp1.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp1.c
X
Xcpp2.o : cpp2.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp2.c
X
Xcpp3.o : cpp3.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp3.c
X
Xcpp4.o : cpp4.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp4.c
X
Xcpp5.o : cpp5.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp5.c
X
Xcpp6.o : cpp6.c cpp.h cppdef.h
X $(CC) $(CFLAGS) -c cpp6.c
END_OF_FILE
if test 579 -ne `wc -c <'org/make.boot'`; then
echo shar: \"'org/make.boot'\" unpacked with wrong size!
fi
# end of 'org/make.boot'
fi
if test -f 'org/makefile.txt' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/makefile.txt'\"
else
echo shar: Extracting \"'org/makefile.txt'\" \(3649 characters\)
sed "s/^X//" >'org/makefile.txt' <<'END_OF_FILE'
X# Unix makefile for cpp
X#
X# On certain systems, such as Unix System III, you may need to define
X# $(LINTFLAGS) in the make command line to set system-specific lint flags.
X#
X# This Makefile assumes cpp will replace the "standard" preprocessor.
X# Delete the reference to -DLINE_PREFIX=\"\" if cpp is used stand-alone.
X# LINEFIX is a sed script filter that reinserts #line -- used for testing
X# if LINE_PREFIX is set to "". Note that we must stand on our heads to
X# match the # and a line had better not begin with $. By the way, what
X# we really want is
X# LINEFIX = | sed "s/^#/#line/"
X#
XCPPDEFINE = -DLINE_PREFIX=\"\"
XLINEFIX = | sed "s/^[^ !\"%-~]/&line/"
X#
X# Define OLD_PREPROCESSOR non-zero to make a preprocessor which is
X# "as compatible as possible" with the standard Unix V7 or Ultrix
X# preprocessors. This is needed to rebuild 4.2bsd, for example, as
X# the preprocessor is used to modify assembler code, rather than C.
X# This is not recommended for current development. OLD_PREPROCESSOR
X# forces the following definitions:
X# OK_DOLLAR FALSE $ is not allowed in variables
X# OK_CONCAT FALSE # cannot concatenate tokens
X# COMMENT_INVISIBLE TRUE old-style comment concatenation
X# STRING_FORMAL TRUE old-style string expansion
X#
XOLDDEFINE = -DOLD_PREPROCESSOR=1
X#
X# DEFINES collects all -D arguments for cc and lint:
X# Change DEFINES = $(CPPDEFINE) $(OLDDEFINE)
X# for an old-style preprocessor.
X# If being used for GNU Emacs, the macro EMACS will be defined as -DEMACS.
X#
XDEFINES = $(CPPDEFINE) $(OLDDEFINE) $(EMACS)
X
XCFLAGS = -g $(DEFINES)
X
X#
X# ** compile cpp
X#
XSRCS = cpp1.c cpp2.c cpp3.c cpp4.c cpp5.c cpp6.c
XOBJS = cpp1.o cpp2.o cpp3.o cpp4.o cpp5.o cpp6.o
Xcpp: $(OBJS)
X $(CC) $(CFLAGS) $(OBJS) -o cpp
X
X#
X# ** Test cpp by preprocessing itself, compiling the result,
X# ** repeating the process and diff'ing the result. Note: this
X# ** is not a good test of cpp, but a simple verification.
X# ** The diff's should not report any changes.
X# ** Note that a sed script may be executed for each compile
X#
Xtest:
X cpp cpp1.c $(LINEFIX) >old.tmp1.c
X cpp cpp2.c $(LINEFIX) >old.tmp2.c
X cpp cpp3.c $(LINEFIX) >old.tmp3.c
X cpp cpp4.c $(LINEFIX) >old.tmp4.c
X cpp cpp5.c $(LINEFIX) >old.tmp5.c
X cpp cpp6.c $(LINEFIX) >old.tmp6.c
X $(CC) $(CFLAGS) old.tmp[123456].c
X a.out cpp1.c >new.tmp1.c
X a.out cpp2.c >new.tmp2.c
X a.out cpp3.c >new.tmp3.c
X a.out cpp4.c >new.tmp4.c
X a.out cpp5.c >new.tmp5.c
X a.out cpp6.c >new.tmp6.c
X diff old.tmp1.c new.tmp1.c
X diff old.tmp2.c new.tmp2.c
X diff old.tmp3.c new.tmp3.c
X diff old.tmp4.c new.tmp4.c
X diff old.tmp5.c new.tmp5.c
X diff old.tmp6.c new.tmp6.c
X rm a.out old.tmp[123456].* new.tmp[123456].*
X
X#
X# A somewhat more extensive test is provided by the "clock"
X# program (which is not distributed). Substitute your favorite
X# macro-rich program here.
X#
Xclock: clock.c cpp
X cpp clock.c $(LINEFIX) >temp.cpp.c
X cc temp.cpp.c -lcurses -ltermcap -o clock
X rm temp.cpp.c
X
X#
X# ** Lint the code
X#
X
Xlint: $(SRCS)
X lint $(LINTFLAGS) $(DEFINES) $(SRCS)
X
X#
X# ** Remove unneeded files
X#
Xclean:
X rm -f $(OBJS) cpp
X
X#
X# ** Rebuild the archive files needed to distribute cpp
X# ** Uses the Decus C archive utility.
X#
X
Xarchc: archc.c
X $(CC) $(CFLAGS) archc.c -o archc
X
Xarchx: archx.c
X $(CC) $(CFLAGS) archx.c -o archx
X
Xarchive: archc
X archc readme.txt cpp.mem archx.c archc.c cpp.rno makefile.txt \
X cpp*.h >cpp1.arc
X archc cpp1.c cpp2.c cpp3.c >cpp2.arc
X archc cpp4.c cpp5.c cpp6.c >cpp3.arc
X
X#
X# Object module dependencies
X#
X
Xcpp1.o : cpp1.c cpp.h cppdef.h
X
Xcpp2.o : cpp2.c cpp.h cppdef.h
X
Xcpp3.o : cpp3.c cpp.h cppdef.h
X
Xcpp4.o : cpp4.c cpp.h cppdef.h
X
Xcpp5.o : cpp5.c cpp.h cppdef.h
X
Xcpp6.o : cpp6.c cpp.h cppdef.h
X
X
END_OF_FILE
if test 3649 -ne `wc -c <'org/makefile.txt'`; then
echo shar: \"'org/makefile.txt'\" unpacked with wrong size!
fi
# end of 'org/makefile.txt'
fi
if test -f 'org/readme' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/readme'\"
else
echo shar: Extracting \"'org/readme'\" \(1025 characters\)
sed "s/^X//" >'org/readme' <<'END_OF_FILE'
XThis is a version of the Decus cpp which has been modified to run on
Xthe Amiga. The bootstraping and porting process is not real straight-
Xforward, and in fact required the resources of a Unix system cpp since
Xneither Manx nor Lattice could properly deal with the cpp source code
Xbefore preprocessing. Thus, it may require some work and ingenuity
Xto recreate the supplied executable!
X
XThis cpp predefines "amiga" as opposed to "AMIGA". This is a somewhat
Xbelated attempt to coerce the Amiga world into following the convention
Xof other C environments that the system predefines are lowercase to avoid
Xclashes with user predefines, which are uppercase by convention.
X
XA hacked up version of my Unix like cc frontend that knows about the
Xcpp is also supplied, for the Manx compiler.
X
XI was holding this back until I had a copy of the public domain C
Xcompiler and assembler to go along with it, but since these two items
Xappear to be unreleasable for the immediate future, decided to go ahead
Xand release the cpp now.
X
X-Fred
END_OF_FILE
if test 1025 -ne `wc -c <'org/readme'`; then
echo shar: \"'org/readme'\" unpacked with wrong size!
fi
# end of 'org/readme'
fi
if test -f 'org/readme.txt' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'org/readme.txt'\"
else
echo shar: Extracting \"'org/readme.txt'\" \(4421 characters\)
sed "s/^X//" >'org/readme.txt' <<'END_OF_FILE'
X
XDecus cpp is a public-domain implementation of the C preprocessor.
XIt runs on VMS native (Vax C), VMS compatibilty mode (Decus C),
XRSX-11M, RSTS/E, P/OS, and RT11, as well as on several varieties
Xof Unix, including Ultrix. Decus cpp attempts to implement features
Xin the Draft ANSI Standard for the C language. It should be noted,
Xhowever, that this standard is under active development: the current
Xdraft of the standard explicitly states that "readers are requested
Xnot to specify or claim conformance to this draft." Thus readers
Xand users of Decus cpp should not assume that it conforms to the
Xdraft standard, or that it will conform to the actual C language
Xstandard.
X
XThese notes describe how to extract the cpp source files, configure it
Xfor your needs, and mention a few design decisions that may be of interest
Xto maintainers.
X
X Installation
X
XBecause the primary development of cpp was not on Unix, it
Xis distributed using the Decus C archive program (quite similar
Xto the archiver published in Kernighan and Plauger's Software
XTools). To extract the files from the net.sources distribution,
Xsave this message as cpp1.arc and the other two distribution
Xfiles as cpp2.arc and cpp3.arc. Then, using your favorite editor,
Xlocate the archx.c program, just following the line beginning with
X"-h- archx.c" -- the format of the distribution is just:
X
X -h- readme.txt
X ... this file
X -h- cpp.mem
X ... description of cpp
X -h- archx.c
X ... archx.c program -- extracts archives
X -h- archc.c
X ... archc.c program -- creates archives
X
XCompile archx.c -- it shouldn't require any special editing.
XThen run it as follows:
X
X archx *.arc
X
XYou do not need to remove mail headers from the saved messages.
X
XYou should then read through cppdef.h to make sure the HOST and
XTARGET (and other implementation-specific) definitions are set
Xcorrectly for your machine, editing them as needed.
X
XYou may then copy makefile.txt to Makefile, editing it as needed
Xfor your particular system. On Unix, cpp should be compiled
Xby make without further difficulty. On other operating systems,
Xyou should compile the six source modules, linking them together.
XNote that, on Decus C based systems, you must extend the default
Xstack allocation. The Decus C build utility will create the
Xappropriate command file.
X
X Support Notes
X
XThe USENET distribution kit was designed to keep all submissions around
X50,000 bytes:
X
Xcpp1.arc:
X readme.txt This file
X cpp.mem Documentation page (see below)
X archx.c Archive extraction program
X archc.c Archive construction program
X cpp.rno Source for cpp.mem (see below)
X makefile.txt Unix makefile -- copy to Makefile
X cpp.h Main header file (structure def's and globals)
X cppdef.h Configuration file (host and target definitions)
X
Xcpp2.arc:
X cpp1.c Mainline code, documentation master sources
X cpp2.c most #control processing
X cpp3.c filename stuff and command line parsing
Xcpp3.arc:
X cpp4.c #define processor
X cpp5.c #if <expr> processor
X cpp6.c Support code (symbol table and I/O routines)
X
XCpp intentionally does not rely on the presence of a full-scale
Xmacro preprocessor, it does require the simple parameter substitution
Xpreprocessor capabilities of Unix V6 and Decus C. If your C
Xlanguage lacks full preprocessing, you should make sure "nomacargs"
Xis #define'd in cpp.h. (This is done automatically by the Decus C
Xcompiler.)
X
XThe documentation (manual page) for cpp is included as cpp.mem
Xand cpp.rno. Cpp.rno is in Dec Runoff format, built by a Decus C
Xutility (getrno) from original source which is embedded in cpp1.c.
XTo my knowledge, there is no equivalent program that creates
Xthe nroff source appropriate for Unix.
X
XI would be happy to receive fixes to any problems you encounter.
XAs I do not maintain distribution kit base-levels, bare-bones
Xdiff listings without sufficient context are not very useful.
XIt is unlikely that I can find time to help you with other
Xdifficulties.
X
X Acknowledgements
X
XI received a great deal of help from many people in debugging cpp.
XAlan Feuer and Sam Kendall used "state of the art" run-time code
Xcheckers to locate several errors. Ed Keiser found problems when
Xcpp was used on machines with different int and pointer sizes.
XDave Conroy helped with the initial debugging, while Arthur Olsen
Xand George Rosenberg found (and solved) several problems in the
Xfirst USENET release.
X
XMartin Minow
Xdecvax!minow
X
END_OF_FILE
if test 4421 -ne `wc -c <'org/readme.txt'`; then
echo shar: \"'org/readme.txt'\" unpacked with wrong size!
fi
# end of 'org/readme.txt'
fi
if test -f 'test.c' -a "${1}" != "-c" ; then
echo shar: Will not clobber existing file \"'test.c'\"
else
echo shar: Extracting \"'test.c'\" \(328 characters\)
sed "s/^X//" >'test.c' <<'END_OF_FILE'
X#define cat(x, y) x ## y
X#define var123 Werkt!!!
Xcat(var, 123);
Xcat(cat(1, 2), 3);
X#define cat2(x, y) x/**/y
Xcat2(var, 123);
Xcat2(cat2(1, 2), 3);
X#define str(arg) #arg
Xstr("Hallo");
Xstr(Ha"l"lo);
X#define instr(x) "x y" "x"
Xinstr(Dit is de tweede string)
X#define spaces a b c \
X nexy line
X#define zeroargs()
END_OF_FILE
if test 328 -ne `wc -c <'test.c'`; then
echo shar: \"'test.c'\" unpacked with wrong size!
fi
# end of 'test.c'
fi
echo shar: End of archive 1 \(of 5\).
cp /dev/null ark1isdone
MISSING=""
for I in 1 2 3 4 5 ; do
if test ! -f ark${I}isdone ; then
MISSING="${MISSING} ${I}"
fi
done
if test "${MISSING}" = "" ; then
echo You have unpacked all 5 archives.
rm -f ark[1-9]isdone
else
echo You still need to unpack the following archives:
echo " " ${MISSING}
fi
## End of shell archive.
exit 0
--
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amiga@cs.odu.edu
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Comments, questions, and suggestions s should be addressed to ``amiga-request''
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