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(SCM_PRINT_HIGHLIGHT_PREFIX,

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SCM_PRINT_HIGHLIGHT_SUFFIX): New printer options.
(scm_iprin1): Use them instead of the previoulsy hardcoded
strings.
(scm_init_print): Initialize them.
This commit is contained in:
Marius Vollmer 2004-09-29 17:53:40 +00:00
parent a2902ecb90
commit 81ae25da8c
2 changed files with 18 additions and 7 deletions
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17
libguile/print.c
View file

@ -72,7 +72,11 @@ scm_t_option scm_print_opts[] = {
{ SCM_OPTION_SCM, "closure-hook", SCM_UNPACK (SCM_BOOL_F),
"Hook for printing closures (should handle macros as well)." },
{ SCM_OPTION_BOOLEAN, "source", 0,
"Print closures with source." }
"Print closures with source." },
{ SCM_OPTION_SCM, "highlight-prefix", (unsigned long)SCM_BOOL_F,
"The string to print before highlighted values." },
{ SCM_OPTION_SCM, "highlight-suffix", (unsigned long)SCM_BOOL_F,
"The string to print after highlighted values." }
};
SCM_DEFINE (scm_print_options, "print-options-interface", 0, 1, 0,
@ -360,9 +364,9 @@ scm_iprin1 (SCM exp, SCM port, scm_print_state *pstate)
if (pstate->fancyp
&& scm_is_true (scm_memq (exp, pstate->highlight_objects)))
{
scm_lfwrite ("{", 1, port);
scm_display (SCM_PRINT_HIGHLIGHT_PREFIX, port);
iprin1 (exp, port, pstate);
scm_lfwrite ("}", 1, port);
scm_display (SCM_PRINT_HIGHLIGHT_SUFFIX, port);
}
else
iprin1 (exp, port, pstate);
@ -1121,6 +1125,11 @@ scm_init_print ()
scm_init_opts (scm_print_options, scm_print_opts, SCM_N_PRINT_OPTIONS);
scm_print_options (scm_list_4 (scm_from_locale_symbol ("highlight-prefix"),
scm_from_locale_string ("{"),
scm_from_locale_symbol ("highlight-suffix"),
scm_from_locale_string ("}")));
scm_gc_register_root (&print_state_pool);
scm_gc_register_root (&scm_print_state_vtable);
vtable = scm_make_vtable_vtable (scm_nullstr, SCM_INUM0, SCM_EOL);
@ -1134,7 +1143,7 @@ scm_init_print ()
scm_tc16_port_with_ps = scm_make_smob_type (0, 0);
scm_set_smob_mark (scm_tc16_port_with_ps, scm_markcdr);
scm_set_smob_print (scm_tc16_port_with_ps, port_with_ps_print);
#include "libguile/print.x"
}

8
libguile/print.h
View file

@ -28,9 +28,11 @@
SCM_API scm_t_option scm_print_opts[];
#define SCM_PRINT_CLOSURE (SCM_PACK (scm_print_opts[0].val))
#define SCM_PRINT_SOURCE_P ((int) scm_print_opts[1].val)
#define SCM_N_PRINT_OPTIONS 2
#define SCM_PRINT_CLOSURE (SCM_PACK (scm_print_opts[0].val))
#define SCM_PRINT_SOURCE_P ((int) scm_print_opts[1].val)
#define SCM_PRINT_HIGHLIGHT_PREFIX (SCM_PACK (scm_print_opts[2].val))
#define SCM_PRINT_HIGHLIGHT_SUFFIX (SCM_PACK (scm_print_opts[3].val))
#define SCM_N_PRINT_OPTIONS 4
/* State information passed around during printing.
*/