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unitdiff

Section: FPC unit difference viewer (1)
Updated: 14 November 2004
Index

NAME

unitdiff - Describe differences in the interface of a FPC unit.

SYNOPSIS

unitdiff [ --disable-arguments] [ --disable-private] [ --disable-protected] [ --help] [ --lang=language] [ --list] [ --output=filename] [ --sparse] file1 file2

Description

unitdiffscans one or two Free Pascal unit source files and either lists allavailable identifiers, or describes the differences in identifiersbetween the two units.

Usage

You can invoke unitdiffwith as the only required argument ainputfilename. It will then simply list all available identifiers.

The regular use is to invokeunitdiffwithinput1 input2arguments. It will then show the difference in interface between the twounits, or list the available identifiers in both units. The output of unitdiffwill go to standard output by default.

Options

unitdiffhas some options, most of them optional, defaults will be used in mostcases.

--disable-arguments

If this option is specified, unitdiffwill not check the arguments of functions and procedures. Bydefault, these are checked as well.

--disable-private

By default, private methods of classes are checked. if this option is specified, private fields or methods are not checked.

--disable-protected

By default, protected methods of classes are checked. if this option is specified, protected andprivate fields or methods are not checked.

--help

Emit a short help text and exit.

--lang=language

Sets the language for the output file. This will mainly set the strings usedfor the headers in various parts of the documentation files (by defaultthey're in english). Currently, valid options are

de: German.
fr: French.
nl: Dutch.

--list

If this option is specified, only the list of available identifiers will bespecified for the unit or units. If only 1 unit is specified, this option isautomatically assumed.

--output=filename

This option tells unitdiffwhere the output should go. If this option is not specified, the output issent to standard output (the screen).

--sparse

Turns on sparse mode. In this mode, the output will not contain the types ofthe identifiers. Only the names of the identifiers are written to theoutput. By default, also type descriptions are written.

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