"""SCons.Tool.latex

Tool-specific initialization for LaTeX.
Generates .dvi files from .latex or .ltx files

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.

"""

#
# Copyright (c) 2001 - 2019 The SCons Foundation
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# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
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# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
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# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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__revision__ = "src/engine/SCons/Tool/latex.py bee7caf9defd6e108fc2998a2520ddb36a967691 2019-12-17 02:07:09 bdeegan"

import SCons.Action
import SCons.Defaults
import SCons.Scanner.LaTeX
import SCons.Util
import SCons.Tool
import SCons.Tool.tex

def LaTeXAuxFunction(target = None, source= None, env=None):
    result = SCons.Tool.tex.InternalLaTeXAuxAction( SCons.Tool.tex.LaTeXAction, target, source, env )
    if result != 0:
        SCons.Tool.tex.check_file_error_message(env['LATEX'])
    return result

LaTeXAuxAction = SCons.Action.Action(LaTeXAuxFunction,
                              strfunction=SCons.Tool.tex.TeXLaTeXStrFunction)

def generate(env):
    """Add Builders and construction variables for LaTeX to an Environment."""

    env.AppendUnique(LATEXSUFFIXES=SCons.Tool.LaTeXSuffixes)

    from . import dvi
    dvi.generate(env)

    from . import pdf
    pdf.generate(env)

    bld = env['BUILDERS']['DVI']
    bld.add_action('.ltx', LaTeXAuxAction)
    bld.add_action('.latex', LaTeXAuxAction)
    bld.add_emitter('.ltx', SCons.Tool.tex.tex_eps_emitter)
    bld.add_emitter('.latex', SCons.Tool.tex.tex_eps_emitter)

    SCons.Tool.tex.generate_common(env)

def exists(env):
    SCons.Tool.tex.generate_darwin(env)
    return env.Detect('latex')

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