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<!--
Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 The SCons Foundation
This file is processed by the bin/SConsDoc.py module.
See its __doc__ string for a discussion of the format.
-->
<tool name="yacc">
<summary>
Sets construction variables for the &yacc; parse generator.
</summary>
<sets>
YACC
YACCFLAGS
YACCCOM
YACCHFILESUFFIX
YACCHXXFILESUFFIX
YACCVCGFILESUFFIX
</sets>
<uses>
YACCCOMSTR
</uses>
</tool>
<cvar name="YACC">
<summary>
The parser generator.
</summary>
</cvar>
<cvar name="YACCCOM">
<summary>
The command line used to call the parser generator
to generate a source file.
</summary>
</cvar>
<cvar name="YACCCOMSTR">
<summary>
The string displayed when generating a source file
using the parser generator.
If this is not set, then &cv-link-YACCCOM; (the command line) is displayed.
<example>
env = Environment(YACCCOMSTR = "Yacc'ing $TARGET from $SOURCES")
</example>
</summary>
</cvar>
<cvar name="YACCFLAGS">
<summary>
General options passed to the parser generator.
If &cv-link-YACCFLAGS; contains a <option>-d</option> option,
SCons assumes that the call will also create a .h file
(if the yacc source file ends in a .y suffix)
or a .hpp file
(if the yacc source file ends in a .yy suffix)
</summary>
</cvar>
<cvar name="YACCHFILESUFFIX">
<summary>
The suffix of the C
header file generated by the parser generator
when the
<option>-d</option>
option is used.
Note that setting this variable does not cause
the parser generator to generate a header
file with the specified suffix,
it exists to allow you to specify
what suffix the parser generator will use of its own accord.
The default value is
<filename>.h</filename>.
</summary>
</cvar>
<cvar name="YACCHXXFILESUFFIX">
<summary>
The suffix of the C++
header file generated by the parser generator
when the
<option>-d</option>
option is used.
Note that setting this variable does not cause
the parser generator to generate a header
file with the specified suffix,
it exists to allow you to specify
what suffix the parser generator will use of its own accord.
The default value is
<filename>.hpp</filename>,
except on Mac OS X,
where the default is
<filename>${TARGET.suffix}.h</filename>.
because the default &bison; parser generator just
appends <filename>.h</filename>
to the name of the generated C++ file.
</summary>
</cvar>
<cvar name="YACCVCGFILESUFFIX">
<summary>
The suffix of the file
containing the VCG grammar automaton definition
when the
<option>--graph=</option>
option is used.
Note that setting this variable does not cause
the parser generator to generate a VCG
file with the specified suffix,
it exists to allow you to specify
what suffix the parser generator will use of its own accord.
The default value is
<filename>.vcg</filename>.
</summary>
</cvar>
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