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cppo - Online in the Cloud

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This is the command cppo that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


cppo - lightweight cpp-like preprocessor for OCaml

SYNOPSIS


cppo [Options...] files...

DESCRIPTION


cppo is the equivalent of the C preprocessor for OCaml. It permits the definition and
expansion of simple (in comparison with camlp4) macros and file inclusion. cppo supports
functional macros, conditionals, boolean and arithmetic expressions, stringification, and
calling different, external preprocessors. For a precise description of the features, see
/usr/share/doc/cppo/README.gz.

OPTIONS


-D IDENT
define IDENT

-U IDENT
undefine IDENT

-I DIR add DIR to the search path for included files

-o FILE
write output to FILE

-q Identify and preserve camlp4 quotations

-s Output line directives pointing to the exact source location of each token,
including those coming from the body of macro definitions. This behavior is off by
default.

-n Do not output any line directive other than those found in the input (overrides
-s).

-version
print version and exit

-x NAME:CMD_TEMPLATE
Define a custom preprocessor target section starting with:

#ext "NAME"

and ending with:

#endext

NAME must be a lowercase identifier of the form [a-z][A-Za-z0-9_]*

CMD_TEMPLATE is a command template supporting the following special sequences:

%F file name (unescaped; beware of potential scripting attacks)

%B number of the first line

%E number of the last line

%% a single percent sign

The filename, the first line number and the last line number are available to the
external preprocessor via the environment variables CPPO_FILE, CPPO_FIRST_LINE,
CPPO_LAST_LINE.

The command is expected to read from stdin and to write to stdout.

-help | --help
Display options and exit

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