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[DOC] Enhanced RDoc for String (#5685)

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Treats:

    #chars
    #codepoints
    #each_char
    #each_codepoint
    #each_grapheme_cluster
    #grapheme_clusters

Also, corrects a passage in #unicode_normalize that mentioned module UnicodeNormalize, whose doc (:nodoc:, actually) says not to mention it.
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Burdette Lamar 2022-03-22 14:51:05 -05:00 • committed by GitHub
parent 26aff37466
commit 0140e6c41e
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Notes: git 2022-03-23 04:51:26 +09:00 
Merged-By: BurdetteLamar <BurdetteLamar@Yahoo.com>
7 changed files with 88 additions and 58 deletions
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18
doc/string/each_codepoint.rdoc Normal file
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@ -0,0 +1,18 @@
Calls the given block with each successive codepoint from +self+;
each codepoint is the integer value for a character;
returns +self+:
'hello'.each_codepoint {|codepoint| print codepoint, ' ' }
print "\n"
'тест'.each_codepoint {|codepoint| print codepoint, ' ' }
print "\n"
'こんにちは'.each_codepoint {|codepoint| print codepoint, ' ' }
print "\n"
Output:
104 101 108 108 111
1090 1077 1089 1090
12371 12435 12395 12385 12399
Returns an enumerator if no block is given.