diff options
author | Boris Kolpackov <boris@codesynthesis.com> | 2018-07-16 15:21:26 +0200 |
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committer | Boris Kolpackov <boris@codesynthesis.com> | 2018-07-16 15:54:06 +0200 |
commit | 4f63afc1177021d6345502892dbd028f5d6db5eb (patch) | |
tree | 9f3919d7d6798a82deab6fd9ebfb1d1802b2030f /build2/version/init.cxx | |
parent | 55e858010b9ba53c27475d9ce6f864a84d28fa81 (diff) |
Implement in module
Given test.in containing something along these lines:
foo = $foo$
Now we can do:
using in
file{test}: in{test.in}
file{test}: foo = FOO
The alternative variable substitution symbol can be specified with the
in.symbol variable and lax (instead of the default strict) mode with
in.substitution. For example:
file{test}: in.symbol = '@'
file{test}: in.substitution = lax
Diffstat (limited to 'build2/version/init.cxx')
-rw-r--r-- | build2/version/init.cxx | 34 |
1 files changed, 7 insertions, 27 deletions
diff --git a/build2/version/init.cxx b/build2/version/init.cxx index dbbb7d9..d2df772 100644 --- a/build2/version/init.cxx +++ b/build2/version/init.cxx @@ -254,6 +254,11 @@ namespace build2 if (!first) fail (l) << "multiple version module initializations"; + // Load in.base (in.* varibales, in{} target type). + // + if (!cast_false<bool> (rs["in.base.loaded"])) + load_module (rs, rs, "in.base", l); + module& m (static_cast<module&> (*mod)); const standard_version& v (m.version); @@ -293,33 +298,8 @@ namespace build2 // Enter variables. // { - auto& vp (var_pool.rw (rs)); - - // @@ Note: these should be moved to the 'in' module once we have it. - // - - // Alternative variable substitution symbol. - // - m.in_symbol = &vp.insert<string> ("in.symbol"); - - // Substitution mode. Valid values are 'strict' (default) and 'lax'. - // In the strict mode every substitution symbol is expected to start a - // substitution with the double symbol (e.g., $$) serving as an - // escape sequence. - // - // In the lax mode a pair of substitution symbols is only treated as a - // substitution if what's between them looks like a build2 variable - // name (i.e., doesn't contain spaces, etc). Everything else, - // including unterminated substitution symbols is copied as is. Note - // also that in this mode the double symbol is not treated as an - // escape sequence. - // - // The lax mode is mostly useful when trying to reuse existing .in - // files, for example from autoconf. Note, however, that the lax mode - // is still stricter than the autoconf's semantics which also leaves - // unknown substitutions as is. - // - m.in_substitution = &vp.insert<string> ("in.substitution"); + m.in_symbol = var_pool.find ("in.symbol"); // in.base + m.in_substitution = var_pool.find ("in.substitution"); // in.base } // Register rules. |