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authorMark H Weaver <mhw@netris.org>2014-01-14 17:38:30 -0500
committerMark H Weaver <mhw@netris.org>2014-01-14 20:30:24 -0500
commit6e504a7b44a9a25787bdfb2d86fdddd3029f4ba9 (patch)
treedaf6719107fdc210458678811156c3d9bb60de93 /libguile/private-options.h
parentdc59631d3094ad39bba5e40d5c36200fb99023f9 (diff)
downloadguile-6e504a7b44a9a25787bdfb2d86fdddd3029f4ba9.tar.gz
print: Support R7RS |...| symbol notation.
* libguile/print.c (scm_print_opts): Add 'r7rs-symbols' print option. (symbol_has_extended_read_syntax): If the 'r7rs-symbols' option is enabled, then disallow '|' and '\' from bare symbols. (print_extended_symbol): Use 'scm_lfwrite' and 'scm_putc' instead of 'display_string' and 'display_character' when printing ASCII literals. (print_r7rs_extended_symbol): New static function. (scm_i_print_symbol_name): If the 'r7rs-symbols' option is enabled, use 'print_r7rs_extended_symbol' instead of 'print_extended_symbol'. * libguile/private-options.h (SCM_PRINT_R7RS_SYMBOLS_P): New macro. (SCM_N_PRINT_OPTIONS): Increment. * doc/ref/api-evaluation.texi (Scheme Write): Mention 'r7rs-symbols' print option. * test-suite/tests/print.test ("write"): Add tests.
Diffstat (limited to 'libguile/private-options.h')
-rw-r--r--libguile/private-options.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/libguile/private-options.h b/libguile/private-options.h
index 1a4ad0fb4..a3a0c2b94 100644
--- a/libguile/private-options.h
+++ b/libguile/private-options.h
@@ -52,7 +52,8 @@ SCM_INTERNAL scm_t_option scm_print_opts[];
#define SCM_PRINT_KEYWORD_STYLE_I 2
#define SCM_PRINT_KEYWORD_STYLE (SCM_PACK (scm_print_opts[2].val))
#define SCM_PRINT_ESCAPE_NEWLINES_P scm_print_opts[3].val
-#define SCM_N_PRINT_OPTIONS 4
+#define SCM_PRINT_R7RS_SYMBOLS_P scm_print_opts[4].val
+#define SCM_N_PRINT_OPTIONS 5
/*