Compiler/Preprocessor: Difference between revisions

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=={{header|Julia}}==

<~~lang~~ ruby>""" Rosetta Code task Compiler/Preprocessor task """

<syntaxhighlight lang="ruby">""" Rosetta Code task Compiler/Preprocessor task """

""" If the line is a macro definition, add the macro to macros. """

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runwithopts(preprocess)

</~~lang~~>{{out}} Same output as Phix entry.

</syntaxhighlight>{{out}} Same output as Phix entry.

=={{header|Phix}}==

No attempt to implement command line arguments, obviously trivial on desktop/Phix but not possible under pwa/p2js, aka within a browser.

<span style="color: #000080;font-style:italic;">--

-- demo\rosetta\Compiler\preprocess.exw

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<span style="color: #000080;font-style:italic;">--close_files()</span>

<pre>

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=={{header|Python}}==

<~~lang~~ python>#!/usr/bin/env python

<syntaxhighlight lang="python">#!/usr/bin/env python

"""Rosetta Code compiler/preprocessor. Requires Python >= 3.7."""

import re

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args = parser.parse_args()

preprocess(args.infile.read(), args.infile.name, args.outfile, debug=args.debug)

</syntaxhighlight>

</lang>

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Note that the program errors out if there are any syntax or other errors when defining the macros.

<~~lang~~ ecmascript>import "os" for Process

<syntaxhighlight lang="ecmascript">import "os" for Process

import "./ioutil" for FileUtil, File, Input

import "./str" for Char

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file.writeBytes("\n")

}

}</~~lang~~>

}</syntaxhighlight>