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d: add internationalisation support

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The D parser implements this feature similarly to the C parser,
by using Gettext. Functions gettext() and dgettext() are
imported using extern(C). The internationalisation uses yysymbol_name
to report the name of the SymbolKinds.

* data/skeletons/d.m4 (SymbolKind.toString.yytranslatable,
SymbolKind.toString.yysymbol_name: New), data/skeletons/lalr1.d: Here.
* doc/bison.texi: Document it.
* tests/calc.at: Test it.
This commit is contained in:
Adela Vais
2020-11-28 21:09:39 +02:00
committed by Akim Demaille
parent e51e89856a
commit 594cae57ca
4 changed files with 145 additions and 15 deletions
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22
data/skeletons/d.m4
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@@ -192,7 +192,12 @@ b4_symbol_foreach([b4_token_enum])dnl
}
])
# b4_symbol_translate(STRING)
# ---------------------------
# Used by "bison" in the array of symbol names to mark those that
# require translation.
m4_define([b4_symbol_translate],
[[_($1)]])
## -------------- ##
## Symbol kinds. ##
@@ -252,8 +257,17 @@ m4_define([b4_declare_symbol_enum],
final void toString(W)(W sink) const
if (isOutputRange!(W, char))
{
string yystr = yytname_[yycode_];
immutable string[] yy_sname = @{
]b4_symbol_names[
@};]b4_has_translations_if([[
/* YYTRANSLATABLE[SYMBOL-NUM] -- Whether YY_SNAME[SYMBOL-NUM] is
internationalizable. */
immutable ]b4_int_type_for([b4_translatable])[[] yytranslatable = @{
]b4_translatable[
@};
put(sink, yy_sname[yycode_]);]], [[
string yystr = yytname_[yycode_];
if (yystr[0] == '"')
{
strip_quotes:
@@ -280,9 +294,7 @@ m4_define([b4_declare_symbol_enum],
{
put(sink, "end of input");
return;
}
put(sink, yystr);
}]])[
}
}
]])