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Use two spaces as sentence separator.

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Bruno Haible
2003-05-07 11:11:46 +00:00
parent 9ff67d7a52
commit 1c7d828fc3
2 changed files with 33 additions and 28 deletions
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doc/gperf.texi
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@@ -454,20 +454,20 @@ option's argument. Languages handled are currently:
@table @samp
@item KR-C
Old-style K&R C. This language is understood by old-style C compilers and
Old-style K&R C. This language is understood by old-style C compilers and
ANSI C compilers, but ANSI C compilers may flag warnings (or even errors)
because of lacking @samp{const}.
@item C
Common C. This language is understood by ANSI C compilers, and also by
Common C. This language is understood by ANSI C compilers, and also by
old-style C compilers, provided that you @code{#define const} to empty
for compilers which don't know about this keyword.
@item ANSI-C
ANSI C. This language is understood by ANSI C compilers and C++ compilers.
ANSI C. This language is understood by ANSI C compilers and C++ compilers.
@item C++
C++. This language is understood by C++ compilers.
C++. This language is understood by C++ compilers.
@end table
The default is C.
@@ -515,7 +515,7 @@ This option specifies that all strings that will be passed as arguments
to the generated hash function and the generated lookup function will
solely consist of 7-bit ASCII characters (bytes in the range 0..127).
(Note that the ANSI C functions @code{isalnum} and @code{isgraph} do
@emph{not} guarantee that a byte is in this range. Only an explicit
@emph{not} guarantee that a byte is in this range. Only an explicit
test like @samp{c >= 'A' && c <= 'Z'} guarantees this.)
@item %compare-lengths
@@ -574,7 +574,7 @@ name can be changed through the @samp{%define string-pool-name} declaration.
@cindex @samp{%define string-pool-name}
Allows you to specify the name of the generated string pool created by
the declaration @samp{%pic} (or, equivalently, the option @samp{-P}).
The default name is @samp{stringpool}. This declaration permits the use of
The default name is @samp{stringpool}. This declaration permits the use of
two hash tables in the same file, with @samp{%pic} and even when the
@samp{%global-table} declaration (or, equivalently, the option @samp{-G})
is given.
@@ -598,11 +598,11 @@ use of two hash tables in the same file, even when the option @samp{-G}
Causes the generated C code to use a @code{switch} statement scheme,
rather than an array lookup table. This can lead to a reduction in both
time and space requirements for some input files. The argument to this
option determines how many @code{switch} statements are generated. A
option determines how many @code{switch} statements are generated. A
value of 1 generates 1 @code{switch} containing all the elements, a
value of 2 generates 2 tables with 1/2 the elements in each
@code{switch}, etc. This is useful since many C compilers cannot
correctly generate code for large @code{switch} statements. This option
correctly generate code for large @code{switch} statements. This option
was inspired in part by Keith Bostic's original C program.
@item %omit-struct-type
@@ -653,7 +653,7 @@ The first field of each non-comment line is always the keyword itself. It
can be given in two ways: as a simple name, i.e., without surrounding
string quotation marks, or as a string enclosed in double-quotes, in
C syntax, possibly with backslash escapes like @code{\"} or @code{\234}
or @code{\xa8}. In either case, it must start right at the beginning
or @code{\xa8}. In either case, it must start right at the beginning
of the line, without leading whitespace.
In this context, a ``field'' is considered to extend up to, but
not include, the first blank, comma, or newline. Here is a simple
@@ -760,22 +760,22 @@ created by adding @var{len} to several user-specified @var{str} byte
positions indexed into an @dfn{associated values} table stored in a
local static array. The associated values table is constructed
internally by @code{gperf} and later output as a static local C array
called @samp{hash_table}. The relevant selected positions (i.e. indices
called @samp{hash_table}. The relevant selected positions (i.e. indices
into @var{str}) are specified via the @samp{-k} option when running
@code{gperf}, as detailed in the @emph{Options} section below (@pxref{Options}).
@end deftypefun
@deftypefun {} in_word_set (const char * @var{str}, unsigned int @var{len})
If @var{str} is in the keyword set, returns a pointer to that
keyword. More exactly, if the option @samp{-t} (or, equivalently, the
keyword. More exactly, if the option @samp{-t} (or, equivalently, the
@samp{%struct-type} declaration) was given, it returns
a pointer to the matching keyword's structure. Otherwise it returns
a pointer to the matching keyword's structure. Otherwise it returns
@code{NULL}.
@end deftypefun
If the option @samp{-c} (or, equivalently, the @samp{%compare-strncmp}
declaration) is not used, @var{str} must be a NUL terminated
string of exactly length @var{len}. If @samp{-c} (or, equivalently, the
string of exactly length @var{len}. If @samp{-c} (or, equivalently, the
@samp{%compare-strncmp} declaration) is used, @var{str} must
simply be an array of @var{len} bytes and does not need to be NUL
terminated.
@@ -812,21 +812,21 @@ set characteristics.
@cindex NUL
By default, the code generated by @code{gperf} operates on zero
terminated strings, the usual representation of strings in C. This means
terminated strings, the usual representation of strings in C. This means
that the keywords in the input file must not contain NUL bytes,
and the @var{str} argument passed to @code{hash} or @code{in_word_set}
must be NUL terminated and have exactly length @var{len}.
If option @samp{-c} (or, equivalently, the @samp{%compare-strncmp}
declaration) is used, then the @var{str} argument does not need
to be NUL terminated. The code generated by @code{gperf} will only
to be NUL terminated. The code generated by @code{gperf} will only
access the first @var{len}, not @var{len+1}, bytes starting at @var{str}.
However, the keywords in the input file still must not contain NUL
bytes.
If option @samp{-l} (or, equivalently, the @samp{%compare-lengths}
declaration) is used, then the hash table performs binary
comparison. The keywords in the input file may contain NUL bytes,
comparison. The keywords in the input file may contain NUL bytes,
written in string syntax as @code{\000} or @code{\x00}, and the code
generated by @code{gperf} will treat NUL like any other byte.
Also, in this case the @samp{-c} option (or, equivalently, the
@@ -911,31 +911,31 @@ option's argument. Languages handled are currently:
@table @samp
@item KR-C
Old-style K&R C. This language is understood by old-style C compilers and
Old-style K&R C. This language is understood by old-style C compilers and
ANSI C compilers, but ANSI C compilers may flag warnings (or even errors)
because of lacking @samp{const}.
@item C
Common C. This language is understood by ANSI C compilers, and also by
Common C. This language is understood by ANSI C compilers, and also by
old-style C compilers, provided that you @code{#define const} to empty
for compilers which don't know about this keyword.
@item ANSI-C
ANSI C. This language is understood by ANSI C compilers and C++ compilers.
ANSI C. This language is understood by ANSI C compilers and C++ compilers.
@item C++
C++. This language is understood by C++ compilers.
C++. This language is understood by C++ compilers.
@end table
The default is C.
@item -a
This option is supported for compatibility with previous releases of
@code{gperf}. It does not do anything.
@code{gperf}. It does not do anything.
@item -g
This option is supported for compatibility with previous releases of
@code{gperf}. It does not do anything.
@code{gperf}. It does not do anything.
@end table
@node Output Details, Algorithmic Details, Output Language, Options
@@ -991,7 +991,7 @@ This option specifies that all strings that will be passed as arguments
to the generated hash function and the generated lookup function will
solely consist of 7-bit ASCII characters (bytes in the range 0..127).
(Note that the ANSI C functions @code{isalnum} and @code{isgraph} do
@emph{not} guarantee that a byte is in this range. Only an explicit
@emph{not} guarantee that a byte is in this range. Only an explicit
test like @samp{c >= 'A' && c <= 'Z'} guarantees this.) This was the
default in versions of @code{gperf} earlier than 2.7; now the default is
to support 8-bit and multibyte characters.
@@ -1051,7 +1051,7 @@ name can be changed through the option @samp{--string-pool-name}.
@item -Q @var{string-pool-name}
@itemx --string-pool-name=@var{string-pool-name}
Allows you to specify the name of the generated string pool created by
option @samp{-P}. The default name is @samp{stringpool}. This option
option @samp{-P}. The default name is @samp{stringpool}. This option
permits the use of two hash tables in the same file, with @samp{-P} and
even when the option @samp{-G} (or, equivalently, the @samp{%global-table}
declaration) is given.
@@ -1076,11 +1076,11 @@ use of two hash tables in the same file, even when the option @samp{-G}
Causes the generated C code to use a @code{switch} statement scheme,
rather than an array lookup table. This can lead to a reduction in both
time and space requirements for some input files. The argument to this
option determines how many @code{switch} statements are generated. A
option determines how many @code{switch} statements are generated. A
value of 1 generates 1 @code{switch} containing all the elements, a
value of 2 generates 2 tables with 1/2 the elements in each
@code{switch}, etc. This is useful since many C compilers cannot
correctly generate code for large @code{switch} statements. This option
correctly generate code for large @code{switch} statements. This option
was inspired in part by Keith Bostic's original C program.
@item -T
@@ -1090,7 +1090,7 @@ this option if the type is already defined elsewhere.
@item -p
This option is supported for compatibility with previous releases of
@code{gperf}. It does not do anything.
@code{gperf}. It does not do anything.
@end table
@node Algorithmic Details, Verbosity, Output Details, Options
@@ -1100,7 +1100,7 @@ This option is supported for compatibility with previous releases of
@item -k @var{selected-byte-positions}
@itemx --key-positions=@var{selected-byte-positions}
Allows selection of the byte positions used in the keywords'
hash function. The allowable choices range between 1-255, inclusive.
hash function. The allowable choices range between 1-255, inclusive.
The positions are separated by commas, e.g., @samp{-k 9,4,13,14};
ranges may be used, e.g., @samp{-k 2-7}; and positions may occur
in any order. Furthermore, the wildcard '*' causes the generated