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* read.c, read.h (history-length, history-file): New read options.

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(scm_read_options): Stifle history to history length.
This commit is contained in:
Mikael Djurfeldt 1998-10-31 16:40:15 +00:00
parent 64921cdd76
commit ad382b2dcc
2 changed files with 20 additions and 0 deletions
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14
libguile/read.c
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@ -67,8 +67,19 @@ scm_option scm_read_opts[] = {
"Convert symbols to lower case."},
{ SCM_OPTION_SCM, "keywords", SCM_BOOL_F,
"Style of keyword recognition: #f or 'prefix"}
#ifdef HAVE_RL_GETC_FUNCTION
,
{ SCM_OPTION_BOOLEAN, "history-file", 1,
"Use history file." },
{ SCM_OPTION_INTEGER, "history-length", 200,
"History length." }
#endif /* HAVE_RL_GETC_FUNCTION */
};
#ifdef HAVE_RL_GETC_FUNCTION
extern void stifle_history (int max);
#endif
SCM_PROC (s_read_options, "read-options-interface", 0, 1, 0, scm_read_options);
SCM
@ -81,6 +92,9 @@ scm_read_options (setting)
s_read_options);
if (SCM_COPY_SOURCE_P)
SCM_RECORD_POSITIONS_P = 1;
#ifdef HAVE_RL_GETC_FUNCTION
stifle_history (SCM_HISTORY_LENGTH);
#endif
return ans;
}

6
libguile/read.h
View file

@ -73,7 +73,13 @@ extern scm_option scm_read_opts[];
#define SCM_RECORD_POSITIONS_P scm_read_opts[1].val
#define SCM_CASE_INSENSITIVE_P scm_read_opts[2].val
#define SCM_KEYWORD_STYLE scm_read_opts[3].val
#ifndef HAVE_RL_GETC_FUNCTION
#define SCM_N_READ_OPTIONS 4
#else
#define SCM_HISTORY_FILE_P scm_read_opts[4].val
#define SCM_HISTORY_LENGTH scm_read_opts[5].val
#define SCM_N_READ_OPTIONS 6
#endif /* HAVE_RL_GETC_FUNCTION */