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PROGRAM:
NAME
tcldocstrip - Tcl-based Docstrip Processor
SYNOPSIS
tcldocstrip output ?options? input ?guards?
tcldocstrip ?options? output (?options? input guards)...
tcldocstrip -guards input
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DESCRIPTION
The application described by this document, tcldocstrip, is a relative of docstrip, a
simple literate programming tool for LaTeX.
tcldocstrip is based upon the package docstrip.
USE CASES
tcldocstrip was written with the following three use cases in mind.
[1] Conversion of a single input file according to the listed guards into the stripped
output. This handles the most simple case of a set of guards specifying a single
document found in a single input file.
[2] Stitching, or the assembly of an output from several sets of guards, in a specific
order, and possibly from different files. This is the second common case. One
document spread over several inputs, and/or spread over different guard sets.
[3] Extraction and listing of all the unique guard expressions and guards used within a
document to help a person which did not author the document in question in
familiarizing itself with it.
COMMAND LINE
tcldocstrip output ?options? input ?guards?
This is the form for use case [1]. It converts the input file according to the
specified guards and options. The result is written to the named output file.
Usage of the string - as the name of the output signals that the result should be
written to stdout. The guards are document-specific and have to be known to the
caller. The options will be explained later, in section OPTIONS.
path output (in)
This argument specifies where to write the generated document. It can be the
path to a file or directory, or -. The last value causes the application to
write the generated documented to stdout.
If the output does not exist then [file dirname $output] has to exist and
must be a writable directory.
path inputfile (in)
This argument specifies the path to the file to process. It has to exist,
must be readable, and written in docstrip format.
tcldocstrip ?options? output (?options? input guards)...
This is the form for use case [2]. It differs from the form for use case [1] by the
possibility of having options before the output file, which apply in general, and
specifying more than one inputfile, each with its own set of input specific options
and guards.
It extracts data from the various input files, according to the specified options
and guards, and writes the result to the given output, in the order of their
specification on the command line. Options specified before the output are global
settings, whereas the options specified before each input are valid only just for
this input file. Unspecified values are taken from the global settings, or
defaults. As for form [1] using the string - as output causes the application to
write to stdout. Using the string . for an input file signals that the last input
file should be used again. This enables the assembly of the output from one input
file using multiple and different sets of guards, without having to specify the
full name of the file every time.
tcldocstrip -guards input
This is the form for use case [3]. It determines the guards, and unique guard
expressions used within the provided input document. The found strings are written
to stdout, one string per line.
OPTIONS
This section describes all the options available to the user of the application, with the
exception of the option -guards. This option was described already, in section COMMAND
LINE.
-metaprefix string
This option is inherited from the command docstrip::extract provided by the package
docstrip.
It specifies the string by which the '%%' prefix of a metacomment line will be
replaced. Defaults to '%%'. For Tcl code this would typically be '#'.
-onerror mode
This option is inherited from the command docstrip::extract provided by the package
docstrip.
It controls what will be done when a format error in the text being processed is
detected. The settings are:
ignore Just ignore the error; continue as if nothing happened.
puts Write an error message to stderr, then continue processing.
throw Throw an error. ::errorCode is set to a list whose first element is
DOCSTRIP, second element is the type of error, and third element is the line
number where the error is detected. This is the default.
-trimlines bool
This option is inherited from the command docstrip::extract provided by the package
docstrip.
Controls whether spaces at the end of a line should be trimmed away before the line
is processed. Defaults to true.
-preamble text
-postamble text
-nopreamble
-nopostamble
The -no*amble options deactivate file pre- and postambles altogether, whereas the
-*amble options specify the user part of the file pre- and postambles. This part
can be empty, in that case only the standard parts are shown. This is the default.
Preambles, when active, are written before the actual content of a generated file.
In the same manner postambles are, when active, written after the actual content of
a generated file.
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