PSWRAP(1)						      General Commands Manual							 PSWRAP(1)

NAME

       pswrap - creates C procedures from segments of PostScript language code

SYNOPSIS

       pswrap [ -apr ] [ -o outputCfile ] [ -h outputHfile ] [ -s maxstring ] inputfile

DESCRIPTION

       pswrap reads input from inputfile and creates C-callable procedures, known as wraps, that send PostScript language code to the PostScript
       interpreter.  inputfile contains segments of PostScript language code wrapped with a C-like procedure syntax.

       Wraps are the most efficient way for an application to communicate with the PostScript interpreter. For complete documentation of pswrap
       and the language it accepts, see "pswrap Reference Manual" in Programming the Display PostScript System with X.

OPTIONS

       inputfile
	      A file that contains one or more wrap definitions.  pswrap transforms the definitions in inputfile into C procedures. If no input
	      file is specified, the standard input (which can be redirected from a file or pipe) is used. The input file can include text other
	      than wrap definitions.  pswrap converts wrap definitions to C procedures and passes the other text through unchanged. Therefore, it
	      is possible to intersperse C-language source code with wrap definitions in the input file.

	      Note: Although C code is allowed in a pswrap input file, it is not allowed within a wrap body. In particular, no CPP macros (for
	      example, #define) are allowed inside a wrap.

       -a     Generates ANSI C procedure prototypes for procedure definitions in outputCfile and, optionally, outputHfile.  The -a option allows
	      compilers that recognize the ANSI C standard to do more complete type checking of parameters. The -a option also causes pswrap to
	      generate const declarations.

	      Note: ANSI C procedure prototype syntax is not recognized by most non-ANSI C compilers, including many compilers based on the Porta-
	      ble C Compiler. Use the -a option only in conjunction with a compiler that conforms to the ANSI C Standard.

       -h outputHFile
	      Generates a header file that contains extern declarations for non-static wraps. This file can be used in #include statements in mod-
	      ules that use wraps. If the -a option is specified, the declarations in the header file are ANSI C procedure prototypes. If the -h
	      option is omitted, a header file is not produced.

       -o outputCFile
	      Specifies the file to which the generated wraps and passed-through text are written. If omitted, the standard output is used. If the
	      -a option is also specified, the procedure definitions generated by pswrap are in ANSI C procedure prototype syntax.

       -p     Specifies that strings passed by wraps are padded so that each data object begins on a long-word (4-byte) boundary. This option
	      allows wraps to run on architectures that restrict data alignment to 4-byte boundaries and improves performance on some other archi-
	      tectures.

       -r     Generates reentrant code for wraps shared by more than one process (as in shared libraries). Reentrant code can be called recur-
	      sively or by more than one thread. The -r option causes pswrap to generate extra code, so use it only when necessary.

       -s maxstring
	      Sets the maximum allowable length of a PostScript string object or hexadecimal string object in the wrap body input. A syntax error
	      is reported if a string is not terminated with ) or > within maxstring characters.  maxstring cannot be set lower than 80; the
	      default is 200.

SEE ALSO

       Programming the Display PostScript System with X (Addison-Wesley Publishing Company, Inc., 1993).

AUTHOR

       Adobe Systems Incorporated

NOTES

       PostScript and Display PostScript are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.

       Copyright (c) 1988-1994 Adobe Systems Incorporated.  All rights reserved.

Adobe Systems							    4 Apr 1994								 PSWRAP(1)