+
+/* If the lexer is positioned at the (pseudo)identifier S, which
+ may contain a hyphen ('-'), skips it and returns true. Each
+ half of the identifier may be abbreviated to its first three
+ letters.
+ Otherwise, returns false. */
+bool
+lex_match_hyphenated_word (struct lexer *lexer, const char *s)
+{
+ const char *hyphen = strchr (s, '-');
+ if (hyphen == NULL)
+ return lex_match_id (lexer, s);
+ else if (lexer->token != T_ID
+ || !lex_id_match (ss_buffer (s, hyphen - s), ss_cstr (lexer->tokid))
+ || lex_look_ahead (lexer) != '-')
+ return false;
+ else
+ {
+ lex_get (lexer);
+ lex_force_match (lexer, '-');
+ lex_force_match_id (lexer, hyphen + 1);
+ return true;
+ }
+}
+