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authormatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2005-10-24 00:07:01 +0000
committermatz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2005-10-24 00:07:01 +0000
commit082cb4b2b332e7f6634b147ec747b36e4a768434 (patch)
tree39400cee1bb4afa7f43755ab37909aad4f7a37f8 /ext/enumerator/enumerator.c
parent0a1a47235e8abef7c9594e3f5367f3934ed18676 (diff)
* ext/tk/lib/tk/canvas.rb (TkCanvasItemConfig::__item_val2ruby_optkeys):
typo fixed. [ruby-talk:162187] * ext/tk/lib/tk/menu.rb (TkMenuEntryConfig::__item_val2ruby_optkeys): ditto. [ruby-core:06359] * ext/enumerator/enumerator.c: applied documentation patch from James Edward Gray II <james@grayproductions.net>. [ruby-core:06348] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@9450 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/enumerator/enumerator.c')
-rw-r--r--ext/enumerator/enumerator.c103
1 files changed, 103 insertions, 0 deletions
diff --git a/ext/enumerator/enumerator.c b/ext/enumerator/enumerator.c
index 74785569e7..1c6e1d1ace 100644
--- a/ext/enumerator/enumerator.c
+++ b/ext/enumerator/enumerator.c
@@ -15,10 +15,34 @@
#include "ruby.h"
#include "node.h"
+/*
+ * Document-class: Enumerable::Enumerator
+ *
+ * A class which provides a method `each' to be used as an Enumerable
+ * object.
+ */
static VALUE rb_cEnumerator;
static ID sym_each, sym_each_with_index, sym_each_slice, sym_each_cons;
static ID id_new, id_enum_obj, id_enum_method, id_enum_args;
+/*
+ * call-seq:
+ * obj.to_enum(method = :each, *args)
+ * obj.enum_for(method = :each, *args)
+ *
+ * Returns Enumerable::Enumerator.new(self, method, *args).
+ *
+ * e.g.:
+ * str = "xyz"
+ *
+ * enum = str.enum_for(:each_byte)
+ * a = enum.map {|b| '%02x' % b } #=> ["78", "79", "7a"]
+ *
+ * # protects an array from being modified
+ * a = [1, 2, 3]
+ * some_method(a.to_enum)
+ *
+ */
static VALUE
obj_to_enum(obj, enum_args)
VALUE obj, enum_args;
@@ -28,6 +52,13 @@ obj_to_enum(obj, enum_args)
return rb_apply(rb_cEnumerator, id_new, enum_args);
}
+/*
+ * call-seq:
+ * enum_with_index
+ *
+ * Returns Enumerable::Enumerator.new(self, :each_with_index).
+ *
+ */
static VALUE
enumerator_enum_with_index(obj)
VALUE obj;
@@ -53,6 +84,21 @@ each_slice_i(val, memo)
return Qnil;
}
+/*
+ * call-seq:
+ * e.each_slice(n) {...}
+ *
+ * Iterates the given block for each slice of <n> elements.
+ *
+ * e.g.:
+ * (1..10).each_slice(3) {|a| p a}
+ * # outputs below
+ * [1, 2, 3]
+ * [4, 5, 6]
+ * [7, 8, 9]
+ * [10]
+ *
+ */
static VALUE
enum_each_slice(obj, n)
VALUE obj, n;
@@ -73,6 +119,13 @@ enum_each_slice(obj, n)
return Qnil;
}
+/*
+ * call-seq:
+ * e.enum_slice(n)
+ *
+ * Returns Enumerable::Enumerator.new(self, :each_slice, n).
+ *
+ */
static VALUE
enumerator_enum_slice(obj, n)
VALUE obj, n;
@@ -98,6 +151,26 @@ each_cons_i(val, memo)
return Qnil;
}
+/*
+ * call-seq:
+ * each_cons(n) {...}
+ *
+ * Iterates the given block for each array of consecutive <n>
+ * elements.
+ *
+ * e.g.:
+ * (1..10).each_cons(3) {|a| p a}
+ * # outputs below
+ * [1, 2, 3]
+ * [2, 3, 4]
+ * [3, 4, 5]
+ * [4, 5, 6]
+ * [5, 6, 7]
+ * [6, 7, 8]
+ * [7, 8, 9]
+ * [8, 9, 10]
+ *
+ */
static VALUE
enum_each_cons(obj, n)
VALUE obj, n;
@@ -113,6 +186,13 @@ enum_each_cons(obj, n)
return Qnil;
}
+/*
+ * call-seq:
+ * e.enum_cons(n)
+ *
+ * Returns Enumerable::Enumerator.new(self, :each_cons, n).
+ *
+ */
static VALUE
enumerator_enum_cons(obj, n)
VALUE obj, n;
@@ -120,6 +200,21 @@ enumerator_enum_cons(obj, n)
return rb_funcall(rb_cEnumerator, id_new, 3, obj, sym_each_cons, n);
}
+/*
+ * call-seq:
+ * Enumerable::Enumerator.new(obj, method = :each, *args)
+ *
+ * Creates a new Enumerable::Enumerator object, which is to be
+ * used as an Enumerable object using the given object's given
+ * method with the given arguments.
+ *
+ * e.g.:
+ * str = "xyz"
+ *
+ * enum = Enumerable::Enumerator.new(str, :each_byte)
+ * a = enum.map {|b| '%02x' % b } #=> ["78", "79", "7a"]
+ *
+ */
static VALUE
enumerator_initialize(argc, argv, obj)
int argc;
@@ -147,6 +242,14 @@ enumerator_iter(memo)
return rb_apply(memo->u1.value, memo->u2.id, memo->u3.value);
}
+/*
+ * call-seq:
+ * enum.each {...}
+ *
+ * Iterates the given block using the object and the method specified
+ * in the first place.
+ *
+ */
static VALUE
enumerator_each(obj)
VALUE obj;