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This is the command fmttestmh that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


fmttest - test tool for the mh-format(5) language

SYNOPSIS


fmttest [-form formatfile] [-format formatstring] [-address | -raw | -date | -message]
[-file | -nofile] [--component component-text] [-dupaddrs | -nodupaddrs] [-ccme |
-noccme] [-outsize size-in-characters] [-bufsize size-in-bytes] [-width column-width]
[-msgnum number] [-msgcur flag] [-msgsize size] [-unseen flag] [-dump | -nodump]
[-trace | -notrace] [+folder] [msgs | strings]

DESCRIPTION


Fmttest is used to test programs written for the nmh format language as specified by mh-
format(5). It is also intended to replace the ap, dp, and fmtdump programs.

FORMAT PROGRAM SELECTION
The -format string and -form formatfile switches may be used to specify a format string or
a format file to read. If given a format string, it must be specified as a single
argument to the -format switch. If given a format file name with -form, the file is
searched for using the normal nmh rules: absolute pathnames are accessed directly, tilde
expansion is done on usernames, and files are searched for in the user's Mail directory as
specified in their profile. If not found there, the directory “/etc/nmh” is checked.

MODE SELECTION AND COMPONENT SPECIFICATION
Fmttest has four operating modes: address mode, raw mode, date mode, and message mode.
These modes are selected by the -address, -raw, -date, and -message switches respectively.

Address mode treats every argument as an email address and processes it with nmh's email
parser. Each argument is processed with the specified format program with the parsed
email address available as a special %{text} component escape, and the output from the
program is printed on standard output. If there was an error parsing the email address
the error message is stored in the %{error} component escape. If no format program is
given on the command line, the following default program is used:

%<{error}%{error}: %{text}%|%(putstr(proper{text}))%>

In this mode fmttest is equivalent to ap(8).

In raw mode, no processing of the specified arguments is done. Each argument is run
against the specified format program with the argument text available in the %{text}
component. You must specify a format with -form or -format when using raw mode.

Date mode is identical to raw mode, with one exception: if no format is specified, the
following format string is used:

%<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>

Date mode is equivalent to dp(8).

In message mode the arguments to fmttest are interpreted as an optional folder and
messages. Fmttest will read each specified message and make all of the components in the
message available to the format program. Also, the appropriate information for the
%(msg), %(cur), %(unseen), and %(size) function escapes will be made available for each
message. If the -file switch is given, the arguments are interpreted as filenames instead
of message numbers, but otherwise the behavior is the same (except that the %(msg),
%(cur), and %(unseen) function escapes will not provide any useful information).

The default format used in address mode is the default format used by scan. The following
command can replicate the functionality of the repl command.

fmttest -nodupaddrs -form replcomps -outsize max [+folder] message

Regardless of the mode, other components can be provided to the format program by the use
of the --component switch. For example, the following program will test out the use of
the “encrypted” component:

fmttest --encrypted yes -message cur

In message mode components supplied on the command line will override components from
messages.

ADDITIONAL SWITCHES
The -dupaddrs and -nodupaddrs switches control whether duplicate addresses are allowed or
suppressed by the FORMATADDR instruction, which is used by the `%(formataddr)' function
escape. In normal operation duplicate addresses are only suppressed by repl.

The -ccme and -noccme switches control whether or not to count the user's local mailbox as
a duplicate address. This replicates the behavior of the -cc me switch to repl, and only
applies if -nodupaddrs is in effect.

The -outsize switch controls the maximum number of printable characters that the format
engine will produce. Characters marked as non-printing by the format engine with
`%(zputlit)', characters with zero width, and extra bytes that are part of a multibyte
character are not counted against this total. Two special values are supported: “max”,
which will set the value to the size of the output buffer, and “width”, which will set the
value to the width of the terminal. In message mode it defaults to the terminal width,
otherwise the default is the output buffer size.

The -bufsize switch controls the size of the output buffer. By default it is set to the
size of the BUFSIZ C preprocessor symbol, which is system-dependent.

The -width switch controls the column width which is used by the `%(width)' function
escape. By default is set to the terminal width.

The -msgnum, -msgcur, -msgsize, and the -unseen switches all control the values used,
respectively, by the following function escapes: `%(num)', `%(cur)', `%(size)', and
`%(unseen)'. If none are supplied these values are taken from the message in message
mode; in all other modes the default values are 0.

COMPILING AND TRACING FORMAT PROGRAMS
The -dump switch outputs the complete set of format instructions for the specified format
program. The -trace switch will output each format instruction as it is being executed,
and show the values of the num and str registers if they have changed from the previous
instruction. The output buffer is also printed if it has changed from the previous
instruction.

FORMAT INSTRUCTIONS
It should be noted that there is not a one-to-one correspondence between format escapes
and format instructions; many instructions have side effects. Instructions prefixed with
LV” generally return a integer into the num (value) register; instructions prefixed with
a “LS” return a string into the str register.

Instruction Description
COMP Output component
COMPF Formatted output component
LIT Output literal text
LITF Formatted literal text output
CHAR Output single character
NUM Output the num register
NUMF Formatted output of the num register
STR Output the str register
STRF Formatted output of the str register
STRFW Not used
PUTADDR Output address list in str register
STRLIT Output str, no space compression
STRLITZ Like STRLIT, but not counted against width
LS_COMP Write component to str register
LS_LIT Write literal to str register
LS_GETENV Write environment var to str register
LS_DECODECOMP Decode RFC 2047 encoded component to str register
LS_DECODE Decode RFC 2047 encoded string to str register
LS_TRIM Trim trailing whitespace from str register
LV_COMP Convert component to integer, store in num register
LV_COMPFLAG Set num to 1 if TRUE set in component
LV_LIT Load literal value into num register
LV_DAT Load value from dat array into num register (see note)
LV_STRLEN Set num to the length of str
LV_PLUS_L Add value to num register
LV_MINUS_L Substract value from num register
LV_DIVIDE_L Divide num register by value
LV_MODULO_L num modulo value
LV_CHAR_LEFT Store remaining number of printable chars in num
LS_MONTH Write short name of month to str from date component
LS_LMONTH Write long name of month to str from date component
LS_ZONE Write time zone offset to str from date component
LS_DAY Write short name of day of week to str from date component
LS_WEEKDAY Write long name of day of week to str from date component
LS_822DATE Write RFC 822 compatible date to str from date component
LS_PRETTY Write date with “pretty” timezone to str
LV_SEC Write date component seconds to num
LV_MIN Write date component minutes to num
LV_HOUR Write date component hour to num
LV_MON Write date component numeric month to num (start at 1)
LV_YEAR Write date component year to num
LV_YDAY Write date component Julian day to num
LV_WDAY Write date component day of week to num (0 == Sunday)
LV_ZONE Write date component time zone offset to num
LV_CLOCK Write date component in Unix epoch time to num
LV_RCLOCK Write offset of date component from current time to num
LV_DAYF Write 1 to num if day of week is explicit
LV_DST Write 1 to num if DST is in effect for date component
LV_ZONEF Write 1 to num if timezone is explicit
LS_ADDR Write email address of addr component to str
LS_PERS Write personal name of addr component to str
LS_MBOX Write mailbox (username) of addr component to str
LS_HOST Write host of addr component to str
LS_PATH Write host route of addr component to str
LS_GNAME Write group name of addr component to str
LS_NOTE Write note portion of addr component to str
LS_822ADDR Write “proper” RFC 822 version of addr component to str
LS_FRIENDLY Write friendly (name or note) of address component to str
LS_UNQUOTE Remove RFC 2822 quotes from string
LV_HOSTTYPE Set num to type of host (0=local, 1=network)
LV_INGRPF Set num to 1 if address was inside of group
LV_NOHOSTF Set num to 1 of no host was present in address component
LOCALDATE Convert date component to local timezone
GMTDATE Convert date component to GMT
PARSEDATE Parse date component
PARSEADDR Parse address component
FORMATADDR Add address component to list in str
CONCATADDR Like FORMATADDR, but will not suppress duplicates
MYMBOX Set num if address component is a local address
SAVESTR Save str register temporarily
DONE End program
NOP No operation
GOTO Jump to new instruction
IF_S_NULL Branch if str is NULL
IF_S Branch if str is not NULL
IF_V_EQ Branch if num is equal to value
IF_V_NE Branch if num is not equal to value
IF_V_GT Branch if num is greater than value
IF_MATCH Branch if str contains string
IF_AMATCH Branch if str starts with string
S_NULL Set num to 1 if str is NULL
S_NONNULL Set num to 1 if str is not NULL
V_EQ Set num to 1 if num equals value
V_NE Set num to 1 if num does not equal value
V_GT Set num to 1 if num is greater than value
V_MATCH Set num to 1 if str contains string
V_AMATCH Set num to 1 if str starts with string

The LV_DAT instruction is a bit special. Callers of the format library pass in an array
of integers that are used by certain format escapes. The current list of format escapes
and the indexes they use are:

dat[0] %(num)
dat[1] %(cur)
dat[2] %(size)
dat[3] %(width)
dat[4] %(unseen)

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