## ------------------ ##
+# b4_error_verbose_if(IF-TRUE, IF-FALSE)
+# --------------------------------------
+# Expand IF-TRUE, if errors are verbose, IF-FALSE otherwise.
+m4_define([b4_error_verbose_if],
+[m4_if(b4_error_verbose, [1],
+ [$1],
+ [$2])])
+
+
# b4_location_if(IF-TRUE, IF-FALSE)
# ---------------------------------
# Expand IF-TRUE, if locations are used, IF-FALSE otherwise.
])
+# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -------------------------------------------------------
+# Output the definition of the tokens (if there are) as #defines.
+m4_define([b4_token_defines],
+[m4_if([$@], [[]], [],
+[/* Tokens. */
+m4_map([b4_token_define], [$@])])
+])
+
+
# b4_token_enum(TOKEN-NAME, TOKEN-NUMBER)
# ---------------------------------------
# Output the definition of this token as an enum.
[$1 = $2])
-# b4_token_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
-# -------------------------------------------------------
-# Output the definition of the tokens (if there are) as enums and #define.
-m4_define([b4_token_defines],
+# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -----------------------------------------------------
+# Output the definition of the tokens (if there are) as enums.
+m4_define([b4_token_enums],
[m4_if([$@], [[]], [],
[/* Tokens. */
#ifndef YYTOKENTYPE
[$@])
};
#endif
-m4_map([b4_token_define], [$@])
-])
+])])
+
+
+# b4_token_enums_defines(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)
+# -------------------------------------------------------------
+# Output the definition of the tokens (if there are) as enums and #defines.
+m4_define([b4_token_enums_defines],
+[b4_token_enums($@)b4_token_defines($@)
])
# Generate the "yydestruct" function, which declaration is issued using
# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C
# or "b4_c_function_def" for K&R.
-m4_define([b4_yydestruct_generate],
+m4_define_default([b4_yydestruct_generate],
[[/*-----------------------------------------------.
| Release the memory associated to this symbol. |
`-----------------------------------------------*/
# Generate the "yysymprint" function, which declaration is issued using
# FUNCTION-DECLARATOR, which may be "b4_c_ansi_function_def" for ISO C
# or "b4_c_function_def" for K&R.
-m4_define([b4_yysymprint_generate],
+m4_define_default([b4_yysymprint_generate],
[[/*--------------------------------.
| Print this symbol on YYOUTPUT. |
`--------------------------------*/