add some datatype deftechs
svn: r12026
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@ -3,9 +3,10 @@
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@title[#:tag "booleans"]{Booleans and Equality}
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True and false are represented by the values @scheme[#t] and
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@scheme[#f], respectively, though operations that depend a boolean
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value typically treat anything other than @scheme[#f] as true.
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True and false @deftech{booleans} are represented by the values
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@scheme[#t] and @scheme[#f], respectively, though operations that
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depend a boolean value typically treat anything other than @scheme[#f]
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as true.
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See also: @scheme[and], @scheme[or], @scheme[andmap], @scheme[ormap].
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@ -7,7 +7,7 @@
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@guideintro["characters"]{characters}
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MzScheme characters range over Unicode scalar values, which includes
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@deftech{Characters} range over Unicode scalar values, which includes
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characters whose values range from @schemevalfont{#x0} to
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@schemevalfont{#x10FFFF}, but not including @schemevalfont{#xD800} to
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@schemevalfont{#xDFFF}.
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@ -9,7 +9,7 @@
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@guideintro["numbers"]{numbers}
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All numbers are @deftech{complex numbers}. Some of them are
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All @deftech{numbers} are @deftech{complex numbers}. Some of them are
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@deftech{real numbers}, and all of the real numbers that can be
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represented are also @deftech{rational numbers}, except for
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@as-index{@scheme[+inf.0]} (positive @as-index{infinity}),
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@ -14,14 +14,14 @@
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@local-table-of-contents[]
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Regular expressions are specified as strings or byte strings, using
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the same pattern language as the Unix utility @exec{egrep} or Perl. A
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string-specified pattern produces a character regexp matcher, and a
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byte-string pattern produces a byte regexp matcher. If a character
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regexp is used with a byte string or input port, it matches UTF-8
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encodings (see @secref["encodings"]) of matching character streams;
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if a byte regexp is used with a character string, it matches bytes in
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the UTF-8 encoding of the string.
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@deftech{Regular expressions} are specified as strings or byte
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strings, using the same pattern language as the Unix utility
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@exec{egrep} or Perl. A string-specified pattern produces a character
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regexp matcher, and a byte-string pattern produces a byte regexp
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matcher. If a character regexp is used with a byte string or input
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port, it matches UTF-8 encodings (see @secref["encodings"]) of
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matching character streams; if a byte regexp is used with a character
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string, it matches bytes in the UTF-8 encoding of the string.
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Regular expressions can be compiled into a @defterm{regexp value} for
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repeated matches. The @scheme[regexp] and @scheme[byte-regexp]
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