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bison.m4	41.03 MB	View DL Edit
c++-skel.m4	1.14 MB	View DL Edit
c++.m4	20.7 MB	View DL Edit
c-like.m4	2.5 MB	View DL Edit
c-skel.m4	1.14 MB	View DL Edit
c.m4	32.15 MB	View DL Edit
d-skel.m4	1.11 MB	View DL Edit
d.m4	10.48 MB	View DL Edit
glr.c	88.88 MB	View DL Edit
glr.cc	12.35 MB	View DL Edit
java-skel.m4	1.14 MB	View DL Edit
java.m4	14.25 MB	View DL Edit
lalr1.cc	50.08 MB	View DL Edit
lalr1.d	29.84 MB	View DL Edit
lalr1.java	36.19 MB	View DL Edit
location.cc	10.13 MB	View DL Edit
README-D.txt	1.85 MB	View DL Edit
stack.hh	3.88 MB	View DL Edit
traceon.m4	87 B	View DL Edit
variant.hh	14.66 MB	View DL Edit
yacc.c	69.6 MB	View DL Edit

Edit file: /usr/share/bison/skeletons/java.m4

-*- Autoconf -*-

# Java language support for Bison

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

m4_include(b4_skeletonsdir/[c-like.m4])

# b4_list2(LIST1, LIST2)
# ----------------------
# Join two lists with a comma if necessary.
m4_define([b4_list2],
          [$1[]m4_ifval(m4_quote($1), [m4_ifval(m4_quote($2), [[, ]])])[]$2])

# b4_percent_define_get3(DEF, PRE, POST, NOT)
# -------------------------------------------
# Expand to the value of DEF surrounded by PRE and POST if it's %define'ed,
# otherwise NOT.
m4_define([b4_percent_define_get3],
          [m4_ifval(m4_quote(b4_percent_define_get([$1])),
                [$2[]b4_percent_define_get([$1])[]$3], [$4])])

# b4_flag_value(BOOLEAN-FLAG)
# ---------------------------
m4_define([b4_flag_value], [b4_flag_if([$1], [true], [false])])

# b4_parser_class_declaration
# ---------------------------
# The declaration of the parser class ("class YYParser"), with all its
# qualifiers/annotations.
b4_percent_define_default([[api.parser.abstract]], [[false]])
b4_percent_define_default([[api.parser.final]],    [[false]])
b4_percent_define_default([[api.parser.public]],   [[false]])
b4_percent_define_default([[api.parser.strictfp]], [[false]])

m4_define([b4_parser_class_declaration],
[b4_percent_define_get3([api.parser.annotations], [], [ ])dnl
b4_percent_define_flag_if([api.parser.public],   [public ])dnl
b4_percent_define_flag_if([api.parser.abstract], [abstract ])dnl
b4_percent_define_flag_if([api.parser.final],    [final ])dnl
b4_percent_define_flag_if([api.parser.strictfp], [strictfp ])dnl
[class ]b4_parser_class[]dnl
b4_percent_define_get3([api.parser.extends], [ extends ])dnl
b4_percent_define_get3([api.parser.implements], [ implements ])])

# b4_lexer_if(TRUE, FALSE)
# ------------------------
m4_define([b4_lexer_if],
[b4_percent_code_ifdef([[lexer]], [$1], [$2])])

# b4_identification
# -----------------
m4_define([b4_identification],
[[  /** Version number for the Bison executable that generated this parser.  */
  public static final String bisonVersion = "]b4_version_string[";

/** Name of the skeleton that generated this parser.  */
  public static final String bisonSkeleton = ]b4_skeleton[;
]])

## ------------ ##
## Data types.  ##
## ------------ ##

# b4_int_type(MIN, MAX)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# MIN to MAX (included).
m4_define([b4_int_type],
[m4_if(b4_ints_in($@,   [-128],   [127]), [1], [byte],
       b4_ints_in($@, [-32768], [32767]), [1], [short],
                                               [int])])

# b4_int_type_for(NAME)
# ---------------------
# Return the smallest int type able to handle numbers ranging from
# 'NAME_min' to 'NAME_max' (included).
m4_define([b4_int_type_for],
[b4_int_type($1_min, $1_max)])

# b4_null
# -------
m4_define([b4_null], [null])

# b4_typed_parser_table_define(TYPE, NAME, DATA, COMMENT)
# -------------------------------------------------------
# We use intermediate functions (e.g., yypact_init) to work around the
# 64KB limit for JVM methods.  See
# https://lists.gnu.org/r/help-bison/2008-11/msg00004.html.
m4_define([b4_typed_parser_table_define],
[m4_ifval([$4], [b4_comment([$4])
  ])dnl
[private static final ]$1[[] yy$2_ = yy$2_init();
  private static final ]$1[[] yy$2_init()
  {
    return new ]$1[[]
    {
  ]$3[
    };
  }]])

# b4_integral_parser_table_define(NAME, DATA, COMMENT)
#-----------------------------------------------------
m4_define([b4_integral_parser_table_define],
[b4_typed_parser_table_define([b4_int_type_for([$2])], [$1], [$2], [$3])])

## ------------- ##
## Token kinds.  ##
## ------------- ##

# b4_token_enum(TOKEN-NUM)
# ------------------------
# Output the definition of this token as an enum.
m4_define([b4_token_enum],
[b4_token_visible_if([$1],
    [m4_format([[    /** Token %s, to be returned by the scanner.  */
    static final int %s = %s%s;
]],
               b4_symbol([$1], [tag]),
               b4_symbol([$1], [id]),
               b4_symbol([$1], b4_api_token_raw_if([[number]], [[code]])))])])

# b4_token_enums
# --------------
# Output the definition of the tokens (if there are) as enums.
m4_define([b4_token_enums],
[b4_any_token_visible_if([    /* Token kinds.  */
b4_symbol_foreach([b4_token_enum])])])

## -------------- ##
## Symbol kinds.  ##
## -------------- ##

# b4_symbol_kind(NUM)
# -------------------
m4_define([b4_symbol_kind],
[SymbolKind.b4_symbol_kind_base($@)])

# b4_symbol_enum(SYMBOL-NUM)
# --------------------------
# Output the definition of this symbol as an enum.
m4_define([b4_symbol_enum],
[m4_format([    %-30s %s],
           m4_format([[%s(%s)%s]],
                     b4_symbol([$1], [kind_base]),
                     [$1],
                     m4_if([$1], b4_last_symbol, [[;]], [[,]])),
           [b4_symbol_tag_comment([$1])])])

# b4_declare_symbol_enum
# ----------------------
# The definition of the symbol internal numbers as an enum.
m4_define([b4_declare_symbol_enum],
[[  public enum SymbolKind
  {
]b4_symbol_foreach([b4_symbol_enum])[

private final int yycode_;

SymbolKind (int n) {
      this.yycode_ = n;
    }

private static final SymbolKind[] values_ = {
      ]m4_map_args_sep([b4_symbol_kind(], [)], [,
      ], b4_symbol_numbers)[
    };

static final SymbolKind get(int code) {
      return values_[code];
    }

public final int getCode() {
      return this.yycode_;
    }

]b4_parse_error_bmatch(
[simple\|verbose],
[[    /* Return YYSTR after stripping away unnecessary quotes and
       backslashes, so that it's suitable for yyerror.  The heuristic is
       that double-quoting is unnecessary unless the string contains an
       apostrophe, a comma, or backslash (other than backslash-backslash).
       YYSTR is taken from yytname.  */
    private static String yytnamerr_(String yystr)
    {
      if (yystr.charAt (0) == '"')
        {
          StringBuffer yyr = new StringBuffer();
          strip_quotes: for (int i = 1; i < yystr.length(); i++)
            switch (yystr.charAt(i))
              {
              case '\'':
              case ',':
                break strip_quotes;

case '\\':
                if (yystr.charAt(++i) != '\\')
                  break strip_quotes;
                /* Fall through.  */
              default:
                yyr.append(yystr.charAt(i));
                break;

case '"':
                return yyr.toString();
              }
        }
      return yystr;
    }

/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
       First, the terminals, then, starting at \a YYNTOKENS_, nonterminals.  */
    ]b4_typed_parser_table_define([String], [tname], [b4_tname])[

/* The user-facing name of this symbol.  */
    public final String getName() {
      return yytnamerr_(yytname_[yycode_]);
    }
]],
[custom\|detailed],
[[    /* YYNAMES_[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
       First, the terminals, then, starting at \a YYNTOKENS_, nonterminals.  */
    ]b4_typed_parser_table_define([String], [names], [b4_symbol_names])[

/* The user-facing name of this symbol.  */
    public final String getName() {
      return yynames_[yycode_];
    }]])[
  };
]])])

# b4_case(ID, CODE, [COMMENTS])
# -----------------------------
# We need to fool Java's stupid unreachable code detection.
m4_define([b4_case],
[  case $1:m4_ifval([$3], [ b4_comment([$3])])
  if (yyn == $1)
    $2;
  break;
])

# b4_predicate_case(LABEL, CONDITIONS)
# ------------------------------------
m4_define([b4_predicate_case],
[  case $1:
     if (! ($2)) YYERROR;
    break;
])

## -------- ##
## Checks.  ##
## -------- ##

b4_percent_define_check_kind([[api.value.type]],    [code], [deprecated])

b4_percent_define_check_kind([[annotations]],       [code], [deprecated])
b4_percent_define_check_kind([[extends]],           [code], [deprecated])
b4_percent_define_check_kind([[implements]],        [code], [deprecated])
b4_percent_define_check_kind([[init_throws]],       [code], [deprecated])
b4_percent_define_check_kind([[lex_throws]],        [code], [deprecated])
b4_percent_define_check_kind([[api.parser.class]],  [code], [deprecated])
b4_percent_define_check_kind([[throws]],            [code], [deprecated])

## ---------------- ##
## Default values.  ##
## ---------------- ##

m4_define([b4_yystype], [b4_percent_define_get([[api.value.type]])])
b4_percent_define_default([[api.value.type]], [[Object]])
b4_percent_define_default([[api.symbol.prefix]], [[S_]])

# b4_api_prefix, b4_api_PREFIX
# ----------------------------
# Corresponds to %define api.prefix
b4_percent_define_default([[api.prefix]], [[YY]])
m4_define([b4_api_prefix],
[b4_percent_define_get([[api.prefix]])])
m4_define([b4_api_PREFIX],
[m4_toupper(b4_api_prefix)])

# b4_prefix
# ---------
# If the %name-prefix is not given, it is api.prefix.
m4_define_default([b4_prefix], [b4_api_prefix])

b4_percent_define_default([[api.parser.class]], [b4_prefix[]Parser])
m4_define([b4_parser_class], [b4_percent_define_get([[api.parser.class]])])

b4_percent_define_default([[lex_throws]], [[java.io.IOException]])
m4_define([b4_lex_throws], [b4_percent_define_get([[lex_throws]])])

b4_percent_define_default([[throws]], [])
m4_define([b4_throws], [b4_percent_define_get([[throws]])])

b4_percent_define_default([[init_throws]], [])
m4_define([b4_init_throws], [b4_percent_define_get([[init_throws]])])

b4_percent_define_default([[api.location.type]], [Location])
m4_define([b4_location_type], [b4_percent_define_get([[api.location.type]])])

b4_percent_define_default([[api.position.type]], [Position])
m4_define([b4_position_type], [b4_percent_define_get([[api.position.type]])])

## ----------------- ##
## Semantic Values.  ##
## ----------------- ##

# b4_symbol_translate(STRING)
# ---------------------------
# Used by "bison" in the array of symbol names to mark those that
# require translation.
m4_define([b4_symbol_translate],
[[i18n($1)]])

# b4_trans(STRING)
# ----------------
# Translate a string if i18n is enabled.  Avoid collision with b4_translate.
m4_define([b4_trans],
[b4_has_translations_if([i18n($1)], [$1])])

# b4_symbol_value(VAL, [SYMBOL-NUM], [TYPE-TAG])
# ----------------------------------------------
# See README.
m4_define([b4_symbol_value],
[m4_ifval([$3],
          [(($3)($1))],
          [m4_ifval([$2],
                    [b4_symbol_if([$2], [has_type],
                                  [((b4_symbol([$2], [type]))($1))],
                                  [$1])],
                    [$1])])])

# b4_lhs_value([SYMBOL-NUM], [TYPE])
# ----------------------------------
# See README.
m4_define([b4_lhs_value], [yyval])

# b4_rhs_data(RULE-LENGTH, POS)
# -----------------------------
# See README.
m4_define([b4_rhs_data],
[yystack.valueAt (b4_subtract($@))])

# b4_rhs_value(RULE-LENGTH, POS, SYMBOL-NUM, [TYPE])
# --------------------------------------------------
# See README.
#
# In this simple implementation, %token and %type have class names
# between the angle brackets.
m4_define([b4_rhs_value],
[b4_symbol_value([b4_rhs_data([$1], [$2])], [$3], [$4])])

# b4_lhs_location()
# -----------------
# Expansion of @$.
m4_define([b4_lhs_location],
[(yyloc)])

# b4_rhs_location(RULE-LENGTH, POS)
# ---------------------------------
# Expansion of @POS, where the current rule has RULE-LENGTH symbols
# on RHS.
m4_define([b4_rhs_location],
[yystack.locationAt (b4_subtract($@))])

# b4_lex_param
# b4_parse_param
# --------------
# If defined, b4_lex_param arrives double quoted, but below we prefer
# it to be single quoted.  Same for b4_parse_param.

# TODO: should be in bison.m4
m4_define_default([b4_lex_param], [[]])
m4_define([b4_lex_param], b4_lex_param)
m4_define([b4_parse_param], b4_parse_param)

# b4_lex_param_decl
# -----------------
# Extra formal arguments of the constructor.
m4_define([b4_lex_param_decl],
[m4_ifset([b4_lex_param],
          [b4_remove_comma([$1],
                           b4_param_decls(b4_lex_param))],
          [$1])])

m4_define([b4_param_decls],
          [m4_map([b4_param_decl], [$@])])
m4_define([b4_param_decl], [, $1])

m4_define([b4_remove_comma], [m4_ifval(m4_quote($1), [$1, ], [])m4_shift2($@)])

# b4_parse_param_decl
# -------------------
# Extra formal arguments of the constructor.
m4_define([b4_parse_param_decl],
[m4_ifset([b4_parse_param],
          [b4_remove_comma([$1],
                           b4_param_decls(b4_parse_param))],
          [$1])])

# b4_lex_param_call
# -----------------
# Delegating the lexer parameters to the lexer constructor.
m4_define([b4_lex_param_call],
          [m4_ifset([b4_lex_param],
                    [b4_remove_comma([$1],
                                     b4_param_calls(b4_lex_param))],
                    [$1])])
m4_define([b4_param_calls],
          [m4_map([b4_param_call], [$@])])
m4_define([b4_param_call], [, $2])

# b4_parse_param_cons
# -------------------
# Extra initialisations of the constructor.
m4_define([b4_parse_param_cons],
          [m4_ifset([b4_parse_param],
                    [b4_constructor_calls(b4_parse_param)])])

m4_define([b4_constructor_calls],
          [m4_map([b4_constructor_call], [$@])])
m4_define([b4_constructor_call],
          [this.$2 = $2;
          ])

# b4_parse_param_vars
# -------------------
# Extra instance variables.
m4_define([b4_parse_param_vars],
          [m4_ifset([b4_parse_param],
                    [
    /* User arguments.  */
b4_var_decls(b4_parse_param)])])

m4_define([b4_var_decls],
          [m4_map_sep([b4_var_decl], [
], [$@])])
m4_define([b4_var_decl],
          [    protected final $1;])

# b4_maybe_throws(THROWS)
# -----------------------
# Expand to either an empty string or "throws THROWS".
m4_define([b4_maybe_throws],
          [m4_ifval($1, [ throws $1])])

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