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More Work on Document Creation Process
- Replaced m4 with gpp
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@@ -1,147 +0,0 @@
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M4(1) User Commands M4(1)
|
||||
|
||||
|
||||
|
||||
NAME
|
||||
m4 - macro processor
|
||||
|
||||
SYNOPSIS
|
||||
m4 [OPTION]... [FILE]...
|
||||
|
||||
DESCRIPTION
|
||||
Process macros in FILEs. If no FILE or if FILE is `-',
|
||||
standard input is read.
|
||||
|
||||
Mandatory or optional arguments to long options are
|
||||
mandatory or optional for short options too.
|
||||
|
||||
Operation modes:
|
||||
--help display this help and exit
|
||||
|
||||
--version
|
||||
output version information and exit
|
||||
|
||||
-E, --fatal-warnings
|
||||
once: warnings become errors, twice: stop execu-
|
||||
tion at first error
|
||||
|
||||
-i, --interactive
|
||||
unbuffer output, ignore interrupts
|
||||
|
||||
-P, --prefix-builtins
|
||||
force a `m4_' prefix to all builtins
|
||||
|
||||
-Q, --quiet, --silent
|
||||
suppress some warnings for builtins
|
||||
|
||||
--warn-macro-sequence[=REGEXP]
|
||||
warn if macro definition matches REGEXP,
|
||||
|
||||
default \$\({[^}]*}\|[0-9][0-9]+\)
|
||||
|
||||
Preprocessor features:
|
||||
-D, --define=NAME[=VALUE]
|
||||
define NAME as having VALUE, or empty
|
||||
|
||||
-I, --include=DIRECTORY
|
||||
append DIRECTORY to include path
|
||||
|
||||
-s, --synclines
|
||||
generate `#line NUM "FILE"' lines
|
||||
|
||||
-U, --undefine=NAME
|
||||
undefine NAME
|
||||
|
||||
Limits control:
|
||||
-g, --gnu
|
||||
override -G to re-enable GNU extensions
|
||||
|
||||
-G, --traditional
|
||||
suppress all GNU extensions
|
||||
|
||||
-H, --hashsize=PRIME
|
||||
set symbol lookup hash table size [509]
|
||||
|
||||
-L, --nesting-limit=NUMBER
|
||||
change nesting limit, 0 for unlimited [0]
|
||||
|
||||
Frozen state files:
|
||||
-F, --freeze-state=FILE
|
||||
produce a frozen state on FILE at end
|
||||
|
||||
-R, --reload-state=FILE
|
||||
reload a frozen state from FILE at start
|
||||
|
||||
Debugging:
|
||||
-d, --debug[=FLAGS]
|
||||
set debug level (no FLAGS implies `aeq')
|
||||
|
||||
--debugfile[=FILE]
|
||||
redirect debug and trace output to FILE (default
|
||||
stderr, discard if empty string)
|
||||
|
||||
-l, --arglength=NUM
|
||||
restrict macro tracing size
|
||||
|
||||
-t, --trace=NAME
|
||||
trace NAME when it is defined
|
||||
|
||||
FLAGS is any of:
|
||||
a show actual arguments
|
||||
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||||
c show before collect, after collect and after call
|
||||
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||||
e show expansion
|
||||
|
||||
f say current input file name
|
||||
|
||||
i show changes in input files
|
||||
|
||||
l say current input line number
|
||||
|
||||
p show results of path searches
|
||||
|
||||
q quote values as necessary, with a or e flag
|
||||
|
||||
t trace for all macro calls, not only traceon'ed
|
||||
|
||||
x add a unique macro call id, useful with c flag
|
||||
|
||||
V shorthand for all of the above flags
|
||||
|
||||
If defined, the environment variable `M4PATH' is a
|
||||
colon-separated list of directories included after any
|
||||
specified by `-I'.
|
||||
|
||||
Exit status is 0 for success, 1 for failure, 63 for
|
||||
frozen file version mismatch, or whatever value was
|
||||
passed to the m4exit macro.
|
||||
|
||||
AUTHOR
|
||||
Written by Rene' Seindal.
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||||
|
||||
REPORTING BUGS
|
||||
Report bugs to: bug-m4@gnu.org GNU M4 home page:
|
||||
<http://www.gnu.org/software/m4/> General help using GNU
|
||||
software: <http://www.gnu.org/gethelp/>
|
||||
|
||||
COPYRIGHT
|
||||
Copyright © 2010 Free Software Foundation, Inc. License
|
||||
GPLv3+: GNU GPL version 3 or later
|
||||
<http://gnu.org/licenses/gpl.html>.
|
||||
This is free software: you are free to change and redis-
|
||||
tribute it. There is NO WARRANTY, to the extent permit-
|
||||
ted by law.
|
||||
|
||||
SEE ALSO
|
||||
The full documentation for m4 is maintained as a Texinfo
|
||||
manual. If the info and m4 programs are properly
|
||||
installed at your site, the command
|
||||
|
||||
info m4
|
||||
|
||||
should give you access to the complete manual.
|
||||
|
||||
|
||||
|
||||
GNU M4 1.4.14 February 2010 M4(1)
|
||||
@@ -1,530 +0,0 @@
|
||||
M4(P) POSIX Programmer's Manual M4(P)
|
||||
|
||||
|
||||
|
||||
NAME
|
||||
m4 - macro processor (DEVELOPMENT)
|
||||
|
||||
SYNOPSIS
|
||||
m4 [-s][-D name[=val]]...[-U name]... file...
|
||||
|
||||
DESCRIPTION
|
||||
The m4 utility is a macro processor that shall read one
|
||||
or more text files, process them according to their
|
||||
included macro statements, and write the results to
|
||||
standard output.
|
||||
|
||||
OPTIONS
|
||||
The m4 utility shall conform to the Base Definitions
|
||||
volume of IEEE Std 1003.1-2001, Section 12.2, Utility
|
||||
Syntax Guidelines, except that the order of the -D and
|
||||
-U options shall be significant.
|
||||
|
||||
The following options shall be supported:
|
||||
|
||||
-s Enable line synchronization output for the c99
|
||||
preprocessor phase (that is, #line directives).
|
||||
|
||||
-D name[=val]
|
||||
|
||||
Define name to val or to null if = val is omit-
|
||||
ted.
|
||||
|
||||
-U name
|
||||
Undefine name.
|
||||
|
||||
|
||||
OPERANDS
|
||||
The following operand shall be supported:
|
||||
|
||||
file A pathname of a text file to be processed. If no
|
||||
file is given, or if it is '-' , the standard
|
||||
input shall be read.
|
||||
|
||||
|
||||
STDIN
|
||||
The standard input shall be a text file that is used if
|
||||
no file operand is given, or if it is '-' .
|
||||
|
||||
INPUT FILES
|
||||
The input file named by the file operand shall be a text
|
||||
file.
|
||||
|
||||
ENVIRONMENT VARIABLES
|
||||
The following environment variables shall affect the
|
||||
execution of m4:
|
||||
|
||||
LANG Provide a default value for the internationaliza-
|
||||
tion variables that are unset or null. (See the
|
||||
Base Definitions volume of IEEE Std 1003.1-2001,
|
||||
Section 8.2, Internationalization Variables for
|
||||
the precedence of internationalization variables
|
||||
used to determine the values of locale cate-
|
||||
gories.)
|
||||
|
||||
LC_ALL If set to a non-empty string value, override the
|
||||
values of all the other internationalization
|
||||
variables.
|
||||
|
||||
LC_CTYPE
|
||||
Determine the locale for the interpretation of
|
||||
sequences of bytes of text data as characters
|
||||
(for example, single-byte as opposed to multi-
|
||||
byte characters in arguments and input files).
|
||||
|
||||
LC_MESSAGES
|
||||
Determine the locale that should be used to
|
||||
affect the format and contents of diagnostic mes-
|
||||
sages written to standard error.
|
||||
|
||||
NLSPATH
|
||||
Determine the location of message catalogs for
|
||||
the processing of LC_MESSAGES .
|
||||
|
||||
|
||||
ASYNCHRONOUS EVENTS
|
||||
Default.
|
||||
|
||||
STDOUT
|
||||
The standard output shall be the same as the input
|
||||
files, after being processed for macro expansion.
|
||||
|
||||
STDERR
|
||||
The standard error shall be used to display strings with
|
||||
the errprint macro, macro tracing enabled by the traceon
|
||||
macro, the defined text for macros written by the
|
||||
dumpdef macro, or for diagnostic messages.
|
||||
|
||||
OUTPUT FILES
|
||||
None.
|
||||
|
||||
EXTENDED DESCRIPTION
|
||||
The m4 utility shall compare each token from the input
|
||||
against the set of built-in and user-defined macros. If
|
||||
the token matches the name of a macro, then the token
|
||||
shall be replaced by the macro's defining text, if any,
|
||||
and rescanned for matching macro names. Once no portion
|
||||
of the token matches the name of a macro, it shall be
|
||||
written to standard output. Macros may have arguments,
|
||||
in which case the arguments shall be substituted into
|
||||
the defining text before it is rescanned.
|
||||
|
||||
Macro calls have the form:
|
||||
|
||||
|
||||
name(arg1, arg2, ..., argn)
|
||||
|
||||
Macro names shall consist of letters, digits, and under-
|
||||
scores, where the first character is not a digit. Tokens
|
||||
not of this form shall not be treated as macros.
|
||||
|
||||
The application shall ensure that the left parenthesis
|
||||
immediately follows the name of the macro. If a token
|
||||
matching the name of a macro is not followed by a left
|
||||
parenthesis, it is handled as a use of that macro with-
|
||||
out arguments.
|
||||
|
||||
If a macro name is followed by a left parenthesis, its
|
||||
arguments are the comma-separated tokens between the
|
||||
left parenthesis and the matching right parenthesis.
|
||||
Unquoted <blank>s and <newline>s preceding each argument
|
||||
shall be ignored. All other characters, including trail-
|
||||
ing <blank>s and <newline>s, are retained. Commas
|
||||
enclosed between left and right parenthesis characters
|
||||
do not delimit arguments.
|
||||
|
||||
Arguments are positionally defined and referenced. The
|
||||
string "$1" in the defining text shall be replaced by
|
||||
the first argument. Systems shall support at least nine
|
||||
arguments; only the first nine can be referenced, using
|
||||
the strings "$1" to "$9" , inclusive. The string "$0" is
|
||||
replaced with the name of the macro. The string "$#" is
|
||||
replaced by the number of arguments as a string. The
|
||||
string "$*" is replaced by a list of all of the argu-
|
||||
ments, separated by commas. The string "$@" is replaced
|
||||
by a list of all of the arguments separated by commas,
|
||||
and each argument is quoted using the current left and
|
||||
right quoting strings.
|
||||
|
||||
If fewer arguments are supplied than are in the macro
|
||||
definition, the omitted arguments are taken to be null.
|
||||
It is not an error if more arguments are supplied than
|
||||
are in the macro definition.
|
||||
|
||||
No special meaning is given to any characters enclosed
|
||||
between matching left and right quoting strings, but the
|
||||
quoting strings are themselves discarded. By default,
|
||||
the left quoting string consists of a grave accent ( '`'
|
||||
) and the right quoting string consists of an acute
|
||||
accent ( '" ); see also the changequote macro.
|
||||
|
||||
Comments are written but not scanned for matching macro
|
||||
names; by default, the begin-comment string consists of
|
||||
the number sign character and the end-comment string
|
||||
consists of a <newline>. See also the changecom and dnl
|
||||
macros.
|
||||
|
||||
The m4 utility shall make available the following built-
|
||||
in macros. They can be redefined, but once this is done
|
||||
the original meaning is lost. Their values shall be null
|
||||
unless otherwise stated. In the descriptions below, the
|
||||
term defining text refers to the value of the macro: the
|
||||
second argument to the define macro, among other things.
|
||||
Except for the first argument to the eval macro, all
|
||||
numeric arguments to built-in macros shall be inter-
|
||||
preted as decimal values. The string values produced as
|
||||
the defining text of the decr, divnum, incr, index, len,
|
||||
and sysval built-in macros shall be in the form of a
|
||||
decimal-constant as defined in the C language.
|
||||
|
||||
changecom
|
||||
The changecom macro shall set the begin-comment
|
||||
and end-comment strings. With no arguments, the
|
||||
comment mechanism shall be disabled. With a sin-
|
||||
gle argument, that argument shall become the
|
||||
begin-comment string and the <newline> shall
|
||||
become the end-comment string. With two argu-
|
||||
ments, the first argument shall become the begin-
|
||||
comment string and the second argument shall
|
||||
become the end-comment string. Systems shall sup-
|
||||
port comment strings of at least five characters.
|
||||
|
||||
changequote
|
||||
The changequote macro shall set the begin-quote
|
||||
and end-quote strings. With no arguments, the
|
||||
quote strings shall be set to the default values
|
||||
(that is, `'). With a single argument, that argu-
|
||||
ment shall become the begin-quote string and the
|
||||
<newline> shall become the end-quote string. With
|
||||
two arguments, the first argument shall become
|
||||
the begin-quote string and the second argument
|
||||
shall become the end-quote string. Systems shall
|
||||
support quote strings of at least five charac-
|
||||
ters.
|
||||
|
||||
decr The defining text of the decr macro shall be its
|
||||
first argument decremented by 1. It shall be an
|
||||
error to specify an argument containing any non-
|
||||
numeric characters.
|
||||
|
||||
define The second argument shall become the defining
|
||||
text of the macro whose name is the first argu-
|
||||
ment.
|
||||
|
||||
defn The defining text of the defn macro shall be the
|
||||
quoted definition (using the current quoting
|
||||
strings) of its arguments.
|
||||
|
||||
divert The m4 utility maintains nine temporary buffers,
|
||||
numbered 1 to 9, inclusive. When the last of the
|
||||
input has been processed, any output that has
|
||||
been placed in these buffers shall be written to
|
||||
standard output in buffer-numerical order. The
|
||||
divert macro shall divert future output to the
|
||||
buffer specified by its argument. Specifying no
|
||||
argument or an argument of 0 shall resume the
|
||||
normal output process. Output diverted to a
|
||||
stream other than 0 to 9 shall be discarded. It
|
||||
shall be an error to specify an argument contain-
|
||||
ing any non-numeric characters.
|
||||
|
||||
divnum The defining text of the divnum macro shall be
|
||||
the number of the current output stream as a
|
||||
string.
|
||||
|
||||
dnl The dnl macro shall cause m4 to discard all input
|
||||
characters up to and including the next <new-
|
||||
line>.
|
||||
|
||||
dumpdef
|
||||
The dumpdef macro shall write the defined text to
|
||||
standard error for each of the macros specified
|
||||
as arguments, or, if no arguments are specified,
|
||||
for all macros.
|
||||
|
||||
errprint
|
||||
The errprint macro shall write its arguments to
|
||||
standard error.
|
||||
|
||||
eval The eval macro shall evaluate its first argument
|
||||
as an arithmetic expression, using 32-bit signed
|
||||
integer arithmetic. All of the C-language opera-
|
||||
tors shall be supported, except for:
|
||||
|
||||
|
||||
[]
|
||||
->
|
||||
++
|
||||
--
|
||||
(type)
|
||||
unary *
|
||||
sizeof,
|
||||
.
|
||||
?:
|
||||
unary &
|
||||
|
||||
and all assignment operators. It shall be an error to
|
||||
specify any of these operators. Precedence and associa-
|
||||
tivity shall be as in the ISO C standard. Systems shall
|
||||
support octal and hexadecimal numbers as in the ISO C
|
||||
standard. The second argument, if specified, shall set
|
||||
the radix for the result; the default is 10. The third
|
||||
argument, if specified, sets the minimum number of dig-
|
||||
its in the result. It shall be an error to specify the
|
||||
second or third argument containing any non-numeric
|
||||
characters.
|
||||
|
||||
ifdef If the first argument to the ifdef macro is
|
||||
defined, the defining text shall be the second
|
||||
argument. Otherwise, the defining text shall be
|
||||
the third argument, if specified, or the null
|
||||
string, if not.
|
||||
|
||||
ifelse The ifelse macro takes three or more arguments.
|
||||
If the first two arguments compare as equal
|
||||
strings (after macro expansion of both argu-
|
||||
ments), the defining text shall be the third
|
||||
argument. If the first two arguments do not com-
|
||||
pare as equal strings and there are three argu-
|
||||
ments, the defining text shall be null. If the
|
||||
first two arguments do not compare as equal
|
||||
strings and there are four or five arguments, the
|
||||
defining text shall be the fourth argument. If
|
||||
the first two arguments do not compare as equal
|
||||
strings and there are six or more arguments, the
|
||||
first three arguments shall be discarded and pro-
|
||||
cessing shall restart with the remaining argu-
|
||||
ments.
|
||||
|
||||
include
|
||||
The defining text for the include macro shall be
|
||||
the contents of the file named by the first argu-
|
||||
ment. It shall be an error if the file cannot be
|
||||
read.
|
||||
|
||||
incr The defining text of the incr macro shall be its
|
||||
first argument incremented by 1. It shall be an
|
||||
error to specify an argument containing any non-
|
||||
numeric characters.
|
||||
|
||||
index The defining text of the index macro shall be the
|
||||
first character position (as a string) in the
|
||||
first argument where a string matching the second
|
||||
argument begins (zero origin), or -1 if the sec-
|
||||
ond argument does not occur.
|
||||
|
||||
len The defining text of the len macro shall be the
|
||||
length (as a string) of the first argument.
|
||||
|
||||
m4exit Exit from the m4 utility. If the first argument
|
||||
is specified, it is the exit code. The default is
|
||||
zero. It shall be an error to specify an argument
|
||||
containing any non-numeric characters.
|
||||
|
||||
m4wrap The first argument shall be processed when EOF is
|
||||
reached. If the m4wrap macro is used multiple
|
||||
times, the arguments specified shall be processed
|
||||
in the order in which the m4wrap macros were pro-
|
||||
cessed.
|
||||
|
||||
maketemp
|
||||
The defining text shall be the first argument,
|
||||
with any trailing 'X' characters replaced with
|
||||
the current process ID as a string.
|
||||
|
||||
popdef The popdef macro shall delete the current defini-
|
||||
tion of its arguments, replacing that definition
|
||||
with the previous one. If there is no previous
|
||||
definition, the macro is undefined.
|
||||
|
||||
pushdef
|
||||
The pushdef macro shall be equivalent to the
|
||||
define macro with the exception that it shall
|
||||
preserve any current definition for future
|
||||
retrieval using the popdef macro.
|
||||
|
||||
shift The defining text for the shift macro shall be
|
||||
all of its arguments except for the first one.
|
||||
|
||||
sinclude
|
||||
The sinclude macro shall be equivalent to the
|
||||
include macro, except that it shall not be an
|
||||
error if the file is inaccessible.
|
||||
|
||||
substr The defining text for the substr macro shall be
|
||||
the substring of the first argument beginning at
|
||||
the zero-offset character position specified by
|
||||
the second argument. The third argument, if spec-
|
||||
ified, shall be the number of characters to
|
||||
select; if not specified, the characters from the
|
||||
starting point to the end of the first argument
|
||||
shall become the defining text. It shall not be
|
||||
an error to specify a starting point beyond the
|
||||
end of the first argument and the defining text
|
||||
shall be null. It shall be an error to specify an
|
||||
argument containing any non-numeric characters.
|
||||
|
||||
syscmd The syscmd macro shall interpret its first argu-
|
||||
ment as a shell command line. The defining text
|
||||
shall be the string result of that command. No
|
||||
output redirection shall be performed by the m4
|
||||
utility. The exit status value from the command
|
||||
can be retrieved using the sysval macro.
|
||||
|
||||
sysval The defining text of the sysval macro shall be
|
||||
the exit value of the utility last invoked by the
|
||||
syscmd macro (as a string).
|
||||
|
||||
traceon
|
||||
The traceon macro shall enable tracing for the
|
||||
macros specified as arguments, or, if no argu-
|
||||
ments are specified, for all macros. The trace
|
||||
output shall be written to standard error in an
|
||||
unspecified format.
|
||||
|
||||
traceoff
|
||||
The traceoff macro shall disable tracing for the
|
||||
macros specified as arguments, or, if no argu-
|
||||
ments are specified, for all macros.
|
||||
|
||||
translit
|
||||
The defining text of the translit macro shall be
|
||||
the first argument with every character that
|
||||
occurs in the second argument replaced with the
|
||||
corresponding character from the third argument.
|
||||
|
||||
undefine
|
||||
The undefine macro shall delete all definitions
|
||||
(including those preserved using the pushdef
|
||||
macro) of the macros named by its arguments.
|
||||
|
||||
undivert
|
||||
The undivert macro shall cause immediate output
|
||||
of any text in temporary buffers named as argu-
|
||||
ments, or all temporary buffers if no arguments
|
||||
are specified. Buffers can be undiverted into
|
||||
other temporary buffers. Undiverting shall dis-
|
||||
card the contents of the temporary buffer. It
|
||||
shall be an error to specify an argument contain-
|
||||
ing any non-numeric characters.
|
||||
|
||||
|
||||
EXIT STATUS
|
||||
The following exit values shall be returned:
|
||||
|
||||
0 Successful completion.
|
||||
|
||||
>0 An error occurred
|
||||
|
||||
|
||||
If the m4exit macro is used, the exit value can be spec-
|
||||
ified by the input file.
|
||||
|
||||
CONSEQUENCES OF ERRORS
|
||||
Default.
|
||||
|
||||
The following sections are informative.
|
||||
|
||||
APPLICATION USAGE
|
||||
The defn macro is useful for renaming macros, especially
|
||||
built-ins.
|
||||
|
||||
EXAMPLES
|
||||
If the file m4src contains the lines:
|
||||
|
||||
|
||||
The value of `VER' is "VER".
|
||||
ifdef(`VER', "VER" is defined to be VER., VER is not defined.)
|
||||
ifelse(VER, 1, "VER" is `VER'.)
|
||||
ifelse(VER, 2, "VER" is `VER'., "VER" is not 2.)
|
||||
end
|
||||
|
||||
then the command
|
||||
|
||||
|
||||
m4 m4src
|
||||
|
||||
or the command:
|
||||
|
||||
|
||||
m4 -U VER m4src
|
||||
|
||||
produces the output:
|
||||
|
||||
|
||||
The value of VER is "VER".
|
||||
VER is not defined.
|
||||
|
||||
|
||||
VER is not 2.
|
||||
end
|
||||
|
||||
The command:
|
||||
|
||||
|
||||
m4 -D VER m4src
|
||||
|
||||
produces the output:
|
||||
|
||||
|
||||
The value of VER is "".
|
||||
VER is defined to be .
|
||||
|
||||
|
||||
VER is not 2.
|
||||
end
|
||||
|
||||
The command:
|
||||
|
||||
|
||||
m4 -D VER=1 m4src
|
||||
|
||||
produces the output:
|
||||
|
||||
|
||||
The value of VER is "1".
|
||||
VER is defined to be 1.
|
||||
VER is 1.
|
||||
VER is not 2.
|
||||
end
|
||||
|
||||
The command:
|
||||
|
||||
|
||||
m4 -D VER=2 m4src
|
||||
|
||||
|
||||
produces the output:
|
||||
The value of VER is "2".
|
||||
VER is defined to be 2.
|
||||
|
||||
|
||||
VER is 2.
|
||||
end
|
||||
|
||||
RATIONALE
|
||||
None.
|
||||
|
||||
FUTURE DIRECTIONS
|
||||
None.
|
||||
|
||||
SEE ALSO
|
||||
c99
|
||||
|
||||
COPYRIGHT
|
||||
Portions of this text are reprinted and reproduced in
|
||||
electronic form from IEEE Std 1003.1, 2003 Edition,
|
||||
Standard for Information Technology -- Portable Operat-
|
||||
ing System Interface (POSIX), The Open Group Base Speci-
|
||||
fications Issue 6, Copyright (C) 2001-2003 by the Insti-
|
||||
tute of Electrical and Electronics Engineers, Inc and
|
||||
The Open Group. In the event of any discrepancy between
|
||||
this version and the original IEEE and The Open Group
|
||||
Standard, the original IEEE and The Open Group Standard
|
||||
is the referee document. The original Standard can be
|
||||
obtained online at http://www.open-
|
||||
group.org/unix/online.html .
|
||||
|
||||
|
||||
|
||||
IEEE/The Open Group 2003 M4(P)
|
||||
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Reference in New Issue
Block a user