bool lex_force_num (struct lexer *);
bool lex_force_id (struct lexer *);
bool lex_force_string (struct lexer *);
+bool lex_force_string_or_id (struct lexer *);
/* Token accessors. */
enum token_type lex_token (const struct lexer *);
PRINTF_FORMAT (4, 5);
int lex_end_of_command (struct lexer *);
+void lex_error_expecting (struct lexer *, const char *, ...) SENTINEL(0);
+
void lex_sbc_only_once (const char *);
-void lex_sbc_missing (struct lexer *, const char *);
+void lex_sbc_missing (const char *);
+
+void lex_spec_only_once (struct lexer *, const char *subcommand,
+ const char *specification);
+void lex_spec_missing (struct lexer *, const char *subcommand,
+ const char *specification);
void lex_error_valist (struct lexer *, const char *, va_list)
PRINTF_FORMAT (2, 0);