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Fixed typos in active_support_core_extensions.textile

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RAHUL CHAUDHARI
2011-10-11 17:17:20 +05:30
parent 419d4c09df
commit 1f62c6d09f
1 changed files with 2 additions and 2 deletions
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railties/guides/source/active_support_core_extensions.textile
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@@ -1760,7 +1760,7 @@ h4(#string-conversions). Conversions
h5. +ord+
Ruby 1.9 defines +ord+ to be the codepoint of the first character of the receiver. Active Support backports +ord+ for single-byte encondings like ASCII or ISO-8859-1 in Ruby 1.8:
Ruby 1.9 defines +ord+ to be the codepoint of the first character of the receiver. Active Support backports +ord+ for single-byte encodings like ASCII or ISO-8859-1 in Ruby 1.8:
<ruby>
"a".ord # => 97
@@ -1774,7 +1774,7 @@ In Ruby 1.8 +ord+ doesn't work in general in UTF8 strings, use the multibyte sup
"à".mb_chars.ord # => 224, in UTF8
</ruby>
Note that the 224 is different in both examples. In ISO-8859-1 "à" is represented as a single byte, 224. Its single-character representattion in UTF8 has two bytes, namely 195 and 160, but its Unicode codepoint is 224. If we call +ord+ on the UTF8 string "à" the return value will be 195 in Ruby 1.8. That is not an error, because UTF8 is unsupported, the call itself would be bogus.
Note that the 224 is different in both examples. In ISO-8859-1 "à" is represented as a single byte, 224. Its single-character representation in UTF8 has two bytes, namely 195 and 160, but its Unicode codepoint is 224. If we call +ord+ on the UTF8 string "à" the return value will be 195 in Ruby 1.8. That is not an error, because UTF8 is unsupported, the call itself would be bogus.
INFO: +ord+ is equivalent to +getbyte(0)+.