* We put this in a private header, since layout of data structures
* is an implementation detail that we want to hide.
*
- * Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+ * Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
#define SCM_ESCAPED_PARENS_P scm_read_opts[5].val
#endif
#define SCM_R6RS_ESCAPES_P scm_read_opts[6].val
+#define SCM_SQUARE_BRACKETS_P scm_read_opts[7].val
#if SCM_ENABLE_ELISP
#define SCM_N_READ_OPTIONS 7
#endif
{ SCM_OPTION_BOOLEAN, "r6rs-hex-escapes", 0,
"Use R6RS variable-length character and string hex escapes."},
+ { SCM_OPTION_BOOLEAN, "square-brackets", 1,
+ "Treat `[' and `]' as parentheses, for R6RS compatibility."},
{ 0, },
};
structure''). */
#define CHAR_IS_R5RS_DELIMITER(c) \
(CHAR_IS_BLANK (c) \
- || (c == ')') || (c == '(') || (c == ';') || (c == '"'))
+ || (c == ')') || (c == '(') || (c == ';') || (c == '"') \
+ || (SCM_SQUARE_BRACKETS_P && ((c == '[') || (c == ']'))))
#define CHAR_IS_DELIMITER CHAR_IS_R5RS_DELIMITER
register SCM tmp;
register SCM tl, ans = SCM_EOL;
SCM tl2 = SCM_EOL, ans2 = SCM_EOL, copy = SCM_BOOL_F;
- static const int terminating_char = ')';
+ const int terminating_char = ((chr == '[') ? ']' : ')');
/* Need to capture line and column numbers here. */
long line = SCM_LINUM (port);
case ';':
(void) scm_read_semicolon_comment (chr, port);
break;
+ case '[':
+ if (!SCM_SQUARE_BRACKETS_P)
+ return (scm_read_mixed_case_symbol (chr, port));
+ /* otherwise fall through */
case '(':
return (scm_read_sexp (chr, port));
case '"':