diff options
Diffstat (limited to 'ruby_1_8_6/ext/readline/readline.c')
| -rw-r--r-- | ruby_1_8_6/ext/readline/readline.c | 824 |
1 files changed, 824 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/readline/readline.c b/ruby_1_8_6/ext/readline/readline.c new file mode 100644 index 0000000000..559e1c677b --- /dev/null +++ b/ruby_1_8_6/ext/readline/readline.c @@ -0,0 +1,824 @@ +/* readline.c -- GNU Readline module + Copyright (C) 1997-2001 Shugo Maeda */ + +#include "config.h" +#include <errno.h> +#include <stdio.h> +#include <ctype.h> +#include <string.h> +#ifdef HAVE_READLINE_READLINE_H +#include <readline/readline.h> +#endif +#ifdef HAVE_READLINE_HISTORY_H +#include <readline/history.h> +#endif +#ifdef HAVE_EDITLINE_READLINE_H +#include <editline/readline.h> +#endif + +#include "ruby.h" +#include "rubyio.h" +#include "rubysig.h" + +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif + +static VALUE mReadline; + +#define TOLOWER(c) (isupper(c) ? tolower(c) : c) + +#define COMPLETION_PROC "completion_proc" +#define COMPLETION_CASE_FOLD "completion_case_fold" +static ID completion_proc, completion_case_fold; + +#ifndef HAVE_RL_FILENAME_COMPLETION_FUNCTION +# define rl_filename_completion_function filename_completion_function +#endif +#ifndef HAVE_RL_USERNAME_COMPLETION_FUNCTION +# define rl_username_completion_function username_completion_function +#endif +#ifndef HAVE_RL_COMPLETION_MATCHES +# define rl_completion_matches completion_matches +#endif + +static int readline_event(void); +static char **readline_attempted_completion_function(const char *text, + int start, int end); + +static int +readline_event() +{ + CHECK_INTS; + rb_thread_schedule(); + return 0; +} + +static VALUE +readline_readline(argc, argv, self) + int argc; + VALUE *argv; + VALUE self; +{ + VALUE tmp, add_hist, result; + char *prompt = NULL; + char *buff; + int status; + OpenFile *ofp, *ifp; + + rb_secure(4); + if (rb_scan_args(argc, argv, "02", &tmp, &add_hist) > 0) { + SafeStringValue(tmp); + prompt = RSTRING(tmp)->ptr; + } + + if (!isatty(0) && errno == EBADF) rb_raise(rb_eIOError, "stdin closed"); + + Check_Type(rb_stdout, T_FILE); + GetOpenFile(rb_stdout, ofp); + rl_outstream = GetWriteFile(ofp); + Check_Type(rb_stdin, T_FILE); + GetOpenFile(rb_stdin, ifp); + rl_instream = GetReadFile(ifp); + buff = (char*)rb_protect((VALUE(*)_((VALUE)))readline, (VALUE)prompt, + &status); + if (status) { +#if defined HAVE_RL_CLEANUP_AFTER_SIGNAL + /* restore terminal mode and signal handler*/ + rl_cleanup_after_signal(); +#elif defined HAVE_RL_DEPREP_TERM_FUNCTION + /* restore terminal mode */ + if (rl_deprep_term_function != NULL) /* NULL in libedit. [ruby-dev:29116] */ + (*rl_deprep_term_function)(); + else +#else + rl_deprep_terminal(); +#endif + rb_jump_tag(status); + } + + if (RTEST(add_hist) && buff) { + add_history(buff); + } + if (buff) + result = rb_tainted_str_new2(buff); + else + result = Qnil; + if (buff) free(buff); + return result; +} + +static VALUE +readline_s_set_completion_proc(self, proc) + VALUE self; + VALUE proc; +{ + rb_secure(4); + if (!rb_respond_to(proc, rb_intern("call"))) + rb_raise(rb_eArgError, "argument must respond to `call'"); + return rb_ivar_set(mReadline, completion_proc, proc); +} + +static VALUE +readline_s_get_completion_proc(self) + VALUE self; +{ + rb_secure(4); + return rb_attr_get(mReadline, completion_proc); +} + +static VALUE +readline_s_set_completion_case_fold(self, val) + VALUE self; + VALUE val; +{ + rb_secure(4); + return rb_ivar_set(mReadline, completion_case_fold, val); +} + +static VALUE +readline_s_get_completion_case_fold(self) + VALUE self; +{ + rb_secure(4); + return rb_attr_get(mReadline, completion_case_fold); +} + +static char ** +readline_attempted_completion_function(text, start, end) + const char *text; + int start; + int end; +{ + VALUE proc, ary, temp; + char **result; + int case_fold; + int i, matches; + + proc = rb_attr_get(mReadline, completion_proc); + if (NIL_P(proc)) + return NULL; +#ifdef HAVE_RL_ATTEMPTED_COMPLETION_OVER + rl_attempted_completion_over = 1; +#endif + case_fold = RTEST(rb_attr_get(mReadline, completion_case_fold)); + ary = rb_funcall(proc, rb_intern("call"), 1, rb_tainted_str_new2(text)); + if (TYPE(ary) != T_ARRAY) + ary = rb_Array(ary); + matches = RARRAY(ary)->len; + if (matches == 0) + return NULL; + result = ALLOC_N(char *, matches + 2); + for (i = 0; i < matches; i++) { + temp = rb_obj_as_string(RARRAY(ary)->ptr[i]); + result[i + 1] = ALLOC_N(char, RSTRING(temp)->len + 1); + strcpy(result[i + 1], RSTRING(temp)->ptr); + } + result[matches + 1] = NULL; + + if (matches == 1) { + result[0] = strdup(result[1]); + } + else { + register int i = 1; + int low = 100000; + + while (i < matches) { + register int c1, c2, si; + + if (case_fold) { + for (si = 0; + (c1 = TOLOWER(result[i][si])) && + (c2 = TOLOWER(result[i + 1][si])); + si++) + if (c1 != c2) break; + } else { + for (si = 0; + (c1 = result[i][si]) && + (c2 = result[i + 1][si]); + si++) + if (c1 != c2) break; + } + + if (low > si) low = si; + i++; + } + result[0] = ALLOC_N(char, low + 1); + strncpy(result[0], result[1], low); + result[0][low] = '\0'; + } + + return result; +} + +static VALUE +readline_s_vi_editing_mode(self) + VALUE self; +{ +#ifdef HAVE_RL_VI_EDITING_MODE + rb_secure(4); + rl_vi_editing_mode(1,0); + return Qnil; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_VI_EDITING_MODE */ +} + +static VALUE +readline_s_emacs_editing_mode(self) + VALUE self; +{ +#ifdef HAVE_RL_EMACS_EDITING_MODE + rb_secure(4); + rl_emacs_editing_mode(1,0); + return Qnil; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_EMACS_EDITING_MODE */ +} + +static VALUE +readline_s_set_completion_append_character(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER + rb_secure(4); + if (NIL_P(str)) { + rl_completion_append_character = '\0'; + } + else { + SafeStringValue(str); + if (RSTRING(str)->len == 0) { + rl_completion_append_character = '\0'; + } else { + rl_completion_append_character = RSTRING(str)->ptr[0]; + } + } + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETION_APPEND_CHARACTER */ +} + +static VALUE +readline_s_get_completion_append_character(self) + VALUE self; +{ +#ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER + VALUE str; + + rb_secure(4); + if (rl_completion_append_character == '\0') + return Qnil; + + str = rb_str_new("", 1); + RSTRING(str)->ptr[0] = rl_completion_append_character; + return str; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETION_APPEND_CHARACTER */ +} + +static VALUE +readline_s_set_basic_word_break_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_BASIC_WORD_BREAK_CHARACTERS + static char *basic_word_break_characters = NULL; + + rb_secure(4); + SafeStringValue(str); + if (basic_word_break_characters == NULL) { + basic_word_break_characters = + ALLOC_N(char, RSTRING(str)->len + 1); + } + else { + REALLOC_N(basic_word_break_characters, char, RSTRING(str)->len + 1); + } + strncpy(basic_word_break_characters, + RSTRING(str)->ptr, RSTRING(str)->len); + basic_word_break_characters[RSTRING(str)->len] = '\0'; + rl_basic_word_break_characters = basic_word_break_characters; + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_BASIC_WORD_BREAK_CHARACTERS */ +} + +static VALUE +readline_s_get_basic_word_break_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_BASIC_WORD_BREAK_CHARACTERS + rb_secure(4); + if (rl_basic_word_break_characters == NULL) + return Qnil; + return rb_tainted_str_new2(rl_basic_word_break_characters); +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_BASIC_WORD_BREAK_CHARACTERS */ +} + +static VALUE +readline_s_set_completer_word_break_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_COMPLETER_WORD_BREAK_CHARACTERS + static char *completer_word_break_characters = NULL; + + rb_secure(4); + SafeStringValue(str); + if (completer_word_break_characters == NULL) { + completer_word_break_characters = + ALLOC_N(char, RSTRING(str)->len + 1); + } + else { + REALLOC_N(completer_word_break_characters, char, RSTRING(str)->len + 1); + } + strncpy(completer_word_break_characters, + RSTRING(str)->ptr, RSTRING(str)->len); + completer_word_break_characters[RSTRING(str)->len] = '\0'; + rl_completer_word_break_characters = completer_word_break_characters; + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETER_WORD_BREAK_CHARACTERS */ +} + +static VALUE +readline_s_get_completer_word_break_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_COMPLETER_WORD_BREAK_CHARACTERS + rb_secure(4); + if (rl_completer_word_break_characters == NULL) + return Qnil; + return rb_tainted_str_new2(rl_completer_word_break_characters); +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETER_WORD_BREAK_CHARACTERS */ +} + +static VALUE +readline_s_set_basic_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_BASIC_QUOTE_CHARACTERS + static char *basic_quote_characters = NULL; + + rb_secure(4); + SafeStringValue(str); + if (basic_quote_characters == NULL) { + basic_quote_characters = + ALLOC_N(char, RSTRING(str)->len + 1); + } + else { + REALLOC_N(basic_quote_characters, char, RSTRING(str)->len + 1); + } + strncpy(basic_quote_characters, + RSTRING(str)->ptr, RSTRING(str)->len); + basic_quote_characters[RSTRING(str)->len] = '\0'; + rl_basic_quote_characters = basic_quote_characters; + + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_BASIC_QUOTE_CHARACTERS */ +} + +static VALUE +readline_s_get_basic_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_BASIC_QUOTE_CHARACTERS + rb_secure(4); + if (rl_basic_quote_characters == NULL) + return Qnil; + return rb_tainted_str_new2(rl_basic_quote_characters); +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_BASIC_QUOTE_CHARACTERS */ +} + +static VALUE +readline_s_set_completer_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_COMPLETER_QUOTE_CHARACTERS + static char *completer_quote_characters = NULL; + + rb_secure(4); + SafeStringValue(str); + if (completer_quote_characters == NULL) { + completer_quote_characters = + ALLOC_N(char, RSTRING(str)->len + 1); + } + else { + REALLOC_N(completer_quote_characters, char, RSTRING(str)->len + 1); + } + strncpy(completer_quote_characters, + RSTRING(str)->ptr, RSTRING(str)->len); + completer_quote_characters[RSTRING(str)->len] = '\0'; + rl_completer_quote_characters = completer_quote_characters; + + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETER_QUOTE_CHARACTERS */ +} + +static VALUE +readline_s_get_completer_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_COMPLETER_QUOTE_CHARACTERS + rb_secure(4); + if (rl_completer_quote_characters == NULL) + return Qnil; + return rb_tainted_str_new2(rl_completer_quote_characters); +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_COMPLETER_QUOTE_CHARACTERS */ +} + +static VALUE +readline_s_set_filename_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_FILENAME_QUOTE_CHARACTERS + static char *filename_quote_characters = NULL; + + rb_secure(4); + SafeStringValue(str); + if (filename_quote_characters == NULL) { + filename_quote_characters = + ALLOC_N(char, RSTRING(str)->len + 1); + } + else { + REALLOC_N(filename_quote_characters, char, RSTRING(str)->len + 1); + } + strncpy(filename_quote_characters, + RSTRING(str)->ptr, RSTRING(str)->len); + filename_quote_characters[RSTRING(str)->len] = '\0'; + rl_filename_quote_characters = filename_quote_characters; + + return self; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_FILENAME_QUOTE_CHARACTERS */ +} + +static VALUE +readline_s_get_filename_quote_characters(self, str) + VALUE self, str; +{ +#ifdef HAVE_RL_FILENAME_QUOTE_CHARACTERS + rb_secure(4); + if (rl_filename_quote_characters == NULL) + return Qnil; + return rb_tainted_str_new2(rl_filename_quote_characters); +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif /* HAVE_RL_FILENAME_QUOTE_CHARACTERS */ +} + +static VALUE +hist_to_s(self) + VALUE self; +{ + return rb_str_new2("HISTORY"); +} + +static VALUE +hist_get(self, index) + VALUE self; + VALUE index; +{ + HIST_ENTRY *entry; + int i; + + rb_secure(4); + i = NUM2INT(index); + if (i < 0) { + i += history_length; + } + entry = history_get(history_base + i); + if (entry == NULL) { + rb_raise(rb_eIndexError, "invalid index"); + } + return rb_tainted_str_new2(entry->line); +} + +static VALUE +hist_set(self, index, str) + VALUE self; + VALUE index; + VALUE str; +{ +#ifdef HAVE_REPLACE_HISTORY_ENTRY + HIST_ENTRY *entry; + int i; + + rb_secure(4); + i = NUM2INT(index); + SafeStringValue(str); + if (i < 0) { + i += history_length; + } + entry = replace_history_entry(i, RSTRING(str)->ptr, NULL); + if (entry == NULL) { + rb_raise(rb_eIndexError, "invalid index"); + } + return str; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif +} + +static VALUE +hist_push(self, str) + VALUE self; + VALUE str; +{ + rb_secure(4); + SafeStringValue(str); + add_history(RSTRING(str)->ptr); + return self; +} + +static VALUE +hist_push_method(argc, argv, self) + int argc; + VALUE *argv; + VALUE self; +{ + VALUE str; + + rb_secure(4); + while (argc--) { + str = *argv++; + SafeStringValue(str); + add_history(RSTRING(str)->ptr); + } + return self; +} + +static VALUE +rb_remove_history(index) + int index; +{ +#ifdef HAVE_REMOVE_HISTORY + HIST_ENTRY *entry; + VALUE val; + + rb_secure(4); + entry = remove_history(index); + if (entry) { + val = rb_tainted_str_new2(entry->line); + free(entry->line); + free(entry); + return val; + } + return Qnil; +#else + rb_notimplement(); + return Qnil; /* not reached */ +#endif +} + +static VALUE +hist_pop(self) + VALUE self; +{ + rb_secure(4); + if (history_length > 0) { + return rb_remove_history(history_length - 1); + } else { + return Qnil; + } +} + +static VALUE +hist_shift(self) + VALUE self; +{ + rb_secure(4); + if (history_length > 0) { + return rb_remove_history(0); + } else { + return Qnil; + } +} + +static VALUE +hist_each(self) + VALUE self; +{ + HIST_ENTRY *entry; + int i; + + rb_secure(4); + for (i = 0; i < history_length; i++) { + entry = history_get(history_base + i); + if (entry == NULL) + break; + rb_yield(rb_tainted_str_new2(entry->line)); + } + return self; +} + +static VALUE +hist_length(self) + VALUE self; +{ + rb_secure(4); + return INT2NUM(history_length); +} + +static VALUE +hist_empty_p(self) + VALUE self; +{ + rb_secure(4); + return history_length == 0 ? Qtrue : Qfalse; +} + +static VALUE +hist_delete_at(self, index) + VALUE self; + VALUE index; +{ + int i; + + rb_secure(4); + i = NUM2INT(index); + if (i < 0) + i += history_length; + if (i < 0 || i > history_length - 1) { + rb_raise(rb_eIndexError, "invalid index"); + } + return rb_remove_history(i); +} + +static VALUE +filename_completion_proc_call(self, str) + VALUE self; + VALUE str; +{ + VALUE result; + char **matches; + int i; + + matches = rl_completion_matches(StringValuePtr(str), + rl_filename_completion_function); + if (matches) { + result = rb_ary_new(); + for (i = 0; matches[i]; i++) { + rb_ary_push(result, rb_tainted_str_new2(matches[i])); + free(matches[i]); + } + free(matches); + if (RARRAY(result)->len >= 2) + rb_ary_shift(result); + } + else { + result = Qnil; + } + return result; +} + +static VALUE +username_completion_proc_call(self, str) + VALUE self; + VALUE str; +{ + VALUE result; + char **matches; + int i; + + matches = rl_completion_matches(StringValuePtr(str), + rl_username_completion_function); + if (matches) { + result = rb_ary_new(); + for (i = 0; matches[i]; i++) { + rb_ary_push(result, rb_tainted_str_new2(matches[i])); + free(matches[i]); + } + free(matches); + if (RARRAY(result)->len >= 2) + rb_ary_shift(result); + } + else { + result = Qnil; + } + return result; +} + +void +Init_readline() +{ + VALUE history, fcomp, ucomp; + + /* Allow conditional parsing of the ~/.inputrc file. */ + rl_readline_name = "Ruby"; + + using_history(); + + completion_proc = rb_intern(COMPLETION_PROC); + completion_case_fold = rb_intern(COMPLETION_CASE_FOLD); + + mReadline = rb_define_module("Readline"); + rb_define_module_function(mReadline, "readline", + readline_readline, -1); + rb_define_singleton_method(mReadline, "completion_proc=", + readline_s_set_completion_proc, 1); + rb_define_singleton_method(mReadline, "completion_proc", + readline_s_get_completion_proc, 0); + rb_define_singleton_method(mReadline, "completion_case_fold=", + readline_s_set_completion_case_fold, 1); + rb_define_singleton_method(mReadline, "completion_case_fold", + readline_s_get_completion_case_fold, 0); + rb_define_singleton_method(mReadline, "vi_editing_mode", + readline_s_vi_editing_mode, 0); + rb_define_singleton_method(mReadline, "emacs_editing_mode", + readline_s_emacs_editing_mode, 0); + rb_define_singleton_method(mReadline, "completion_append_character=", + readline_s_set_completion_append_character, 1); + rb_define_singleton_method(mReadline, "completion_append_character", + readline_s_get_completion_append_character, 0); + rb_define_singleton_method(mReadline, "basic_word_break_characters=", + readline_s_set_basic_word_break_characters, 1); + rb_define_singleton_method(mReadline, "basic_word_break_characters", + readline_s_get_basic_word_break_characters, 0); + rb_define_singleton_method(mReadline, "completer_word_break_characters=", + readline_s_set_completer_word_break_characters, 1); + rb_define_singleton_method(mReadline, "completer_word_break_characters", + readline_s_get_completer_word_break_characters, 0); + rb_define_singleton_method(mReadline, "basic_quote_characters=", + readline_s_set_basic_quote_characters, 1); + rb_define_singleton_method(mReadline, "basic_quote_characters", + readline_s_get_basic_quote_characters, 0); + rb_define_singleton_method(mReadline, "completer_quote_characters=", + readline_s_set_completer_quote_characters, 1); + rb_define_singleton_method(mReadline, "completer_quote_characters", + readline_s_get_completer_quote_characters, 0); + rb_define_singleton_method(mReadline, "filename_quote_characters=", + readline_s_set_filename_quote_characters, 1); + rb_define_singleton_method(mReadline, "filename_quote_characters", + readline_s_get_filename_quote_characters, 0); + + history = rb_obj_alloc(rb_cObject); + rb_extend_object(history, rb_mEnumerable); + rb_define_singleton_method(history,"to_s", hist_to_s, 0); + rb_define_singleton_method(history,"[]", hist_get, 1); + rb_define_singleton_method(history,"[]=", hist_set, 2); + rb_define_singleton_method(history,"<<", hist_push, 1); + rb_define_singleton_method(history,"push", hist_push_method, -1); + rb_define_singleton_method(history,"pop", hist_pop, 0); + rb_define_singleton_method(history,"shift", hist_shift, 0); + rb_define_singleton_method(history,"each", hist_each, 0); + rb_define_singleton_method(history,"length", hist_length, 0); + rb_define_singleton_method(history,"size", hist_length, 0); + rb_define_singleton_method(history,"empty?", hist_empty_p, 0); + rb_define_singleton_method(history,"delete_at", hist_delete_at, 1); + rb_define_const(mReadline, "HISTORY", history); + + fcomp = rb_obj_alloc(rb_cObject); + rb_define_singleton_method(fcomp, "call", + filename_completion_proc_call, 1); + rb_define_const(mReadline, "FILENAME_COMPLETION_PROC", fcomp); + + ucomp = rb_obj_alloc(rb_cObject); + rb_define_singleton_method(ucomp, "call", + username_completion_proc_call, 1); + rb_define_const(mReadline, "USERNAME_COMPLETION_PROC", ucomp); +#if defined HAVE_RL_LIBRARY_VERSION + rb_define_const(mReadline, "VERSION", rb_str_new2(rl_library_version)); +#else + rb_define_const(mReadline, "VERSION", + rb_str_new2("2.0 or before version")); +#endif + + rl_attempted_completion_function = readline_attempted_completion_function; +#ifdef HAVE_RL_EVENT_HOOK + rl_event_hook = readline_event; +#endif +#ifdef HAVE_RL_CLEAR_SIGNALS + rl_clear_signals(); +#endif +} |