home *** CD-ROM | disk | FTP | other *** search
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- NNNNAAAAMMMMEEEE
- perlform - Perl formats
-
- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- Perl has a mechanism to help you generate simple reports
- and charts. To facilitate this, Perl helps you code up
- your output page close to how it will look when it's
- printed. It can keep track of things like how many lines
- on a page, what page you're on, when to print page
- headers, etc. Keywords are borrowed from FORTRAN:
- _f_o_r_m_a_t_(_) to declare and _w_r_i_t_e_(_) to execute; see their
- entries in the _p_e_r_l_f_u_n_c manpage. Fortunately, the layout
- is much more legible, more like BASIC's PRINT USING
- statement. Think of it as a poor man's _n_r_o_f_f(1).
-
- Formats, like packages and subroutines, are declared
- rather than executed, so they may occur at any point in
- your program. (Usually it's best to keep them all
- together though.) They have their own namespace apart from
- all the other "types" in Perl. This means that if you
- have a function named "Foo", it is not the same thing as
- having a format named "Foo". However, the default name
- for the format associated with a given filehandle is the
- same as the name of the filehandle. Thus, the default
- format for STDOUT is name "STDOUT", and the default format
- for filehandle TEMP is name "TEMP". They just look the
- same. They aren't.
-
- Output record formats are declared as follows:
-
- ffffoooorrrrmmmmaaaatttt NNNNAAAAMMMMEEEE ====
- FFFFOOOORRRRMMMMLLLLIIIISSSSTTTT
- ....
-
- If name is omitted, format "STDOUT" is defined. FORMLIST
- consists of a sequence of lines, each of which may be of
- one of three types:
-
- 1. A comment, indicated by putting a '#' in the first
- column.
-
- 2. A "picture" line giving the format for one output
- line.
-
- 3. An argument line supplying values to plug into the
- previous picture line.
-
- Picture lines are printed exactly as they look, except for
- certain fields that substitute values into the line. Each
- field in a picture line starts with either "@" (at) or "^"
- (caret). These lines do not undergo any kind of variable
- interpolation. The at field (not to be confused with the
- array marker @) is the normal kind of field; the other
- kind, caret fields, are used to do rudimentary multi-line
-
-
-
- 30/Jan/96 perl 5.002 with 1
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- text block filling. The length of the field is supplied
- by padding out the field with multiple "<", ">", or "|"
- characters to specify, respectively, left justification,
- right justification, or centering. If the variable would
- exceed the width specified, it is truncated.
-
- As an alternate form of right justification, you may also
- use "#" characters (with an optional ".") to specify a
- numeric field. This way you can line up the decimal
- points. If any value supplied for these fields contains a
- newline, only the text up to the newline is printed.
- Finally, the special field "@*" can be used for printing
- multi-line, non-truncated values; it should appear by
- itself on a line.
-
- The values are specified on the following line in the same
- order as the picture fields. The expressions providing
- the values should be separated by commas. The expressions
- are all evaluated in a list context before the line is
- processed, so a single list expression could produce
- multiple list elements. The expressions may be spread out
- to more than one line if enclosed in braces. If so, the
- opening brace must be the first token on the first line.
-
- Picture fields that begin with ^ rather than @ are treated
- specially. With a # field, the field is blanked out if
- the value is undefined. For other field types, the caret
- enables a kind of fill mode. Instead of an arbitrary
- expression, the value supplied must be a scalar variable
- name that contains a text string. Perl puts as much text
- as it can into the field, and then chops off the front of
- the string so that the next time the variable is
- referenced, more of the text can be printed. (Yes, this
- means that the variable itself is altered during execution
- of the _w_r_i_t_e_(_) call, and is not returned.) Normally you
- would use a sequence of fields in a vertical stack to
- print out a block of text. You might wish to end the
- final field with the text "...", which will appear in the
- output if the text was too long to appear in its entirety.
- You can change which characters are legal to break on by
- changing the variable $$$$:::: (that's
- $$$$FFFFOOOORRRRMMMMAAAATTTT____LLLLIIIINNNNEEEE____BBBBRRRREEEEAAAAKKKK____CCCCHHHHAAAARRRRAAAACCCCTTTTEEEERRRRSSSS if you're using the English
- module) to a list of the desired characters.
-
- Using caret fields can produce variable length records.
- If the text to be formatted is short, you can suppress
- blank lines by putting a "~" (tilde) character anywhere in
- the line. The tilde will be translated to a space upon
- output. If you put a second tilde contiguous to the
- first, the line will be repeated until all the fields on
- the line are exhausted. (If you use a field of the at
- variety, the expression you supply had better not give the
- same value every time forever!)
-
-
-
-
- 30/Jan/96 perl 5.002 with 2
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- Top-of-form processing is by default handled by a format
- with the same name as the current filehandle with "_TOP"
- concatenated to it. It's triggered at the top of each
- page. See <perlfunc/_w_r_i_t_e_(_)>.
-
- Examples:
-
- #### aaaa rrrreeeeppppoooorrrrtttt oooonnnn tttthhhheeee ////eeeettttcccc////ppppaaaasssssssswwwwdddd ffffiiiilllleeee
- ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT____TTTTOOOOPPPP ====
- PPPPaaaasssssssswwwwdddd FFFFiiiilllleeee
- NNNNaaaammmmeeee LLLLooooggggiiiinnnn OOOOffffffffiiiicccceeee UUUUiiiidddd GGGGiiiidddd HHHHoooommmmeeee
- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- ....
- ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT ====
- @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @@@@|||||||||||||||||||||||||||| @@@@<<<<<<<<<<<<<<<<<<<<<<<<@@@@>>>>>>>>>>>>>>>> @@@@>>>>>>>>>>>>>>>> @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$nnnnaaaammmmeeee,,,, $$$$llllooooggggiiiinnnn,,,, $$$$ooooffffffffiiiicccceeee,,,,$$$$uuuuiiiidddd,,,,$$$$ggggiiiidddd,,,, $$$$hhhhoooommmmeeee
- ....
-
- #### aaaa rrrreeeeppppoooorrrrtttt ffffrrrroooommmm aaaa bbbbuuuugggg rrrreeeeppppoooorrrrtttt ffffoooorrrrmmmm
- ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT____TTTTOOOOPPPP ====
- BBBBuuuugggg RRRReeeeppppoooorrrrttttssss
- @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< @@@@|||||||||||| @@@@>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
- $$$$ssssyyyysssstttteeeemmmm,,,, $$$$%%%%,,,, $$$$ddddaaaatttteeee
- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- ....
- ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT ====
- SSSSuuuubbbbjjjjeeeecccctttt:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ssssuuuubbbbjjjjeeeecccctttt
- IIIInnnnddddeeeexxxx:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$iiiinnnnddddeeeexxxx,,,, $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- PPPPrrrriiiioooorrrriiiittttyyyy:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< DDDDaaaatttteeee:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<< ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$pppprrrriiiioooorrrriiiittttyyyy,,,, $$$$ddddaaaatttteeee,,,, $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- FFFFrrrroooommmm:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ffffrrrroooommmm,,,, $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- AAAAssssssssiiiiggggnnnneeeedddd ttttoooo:::: @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$pppprrrrooooggggrrrraaaammmmmmmmeeeerrrr,,,, $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ~~~~ ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ~~~~ ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ~~~~ ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ~~~~ ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ~~~~ ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<............
- $$$$ddddeeeessssccccrrrriiiippppttttiiiioooonnnn
- ....
-
- It is possible to intermix _p_r_i_n_t_(_)s with _w_r_i_t_e_(_)s on the
- same output channel, but you'll have to handle $-
- ($FORMAT_LINES_LEFT) yourself.
-
-
-
-
-
-
- 30/Jan/96 perl 5.002 with 3
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- FFFFoooorrrrmmmmaaaatttt VVVVaaaarrrriiiiaaaabbbblllleeeessss
-
- The current format name is stored in the variable $$$$~~~~
- ($FORMAT_NAME), and the current top of form format name is
- in $$$$^^^^ ($FORMAT_TOP_NAME). The current output page number
- is stored in $$$$%%%% ($FORMAT_PAGE_NUMBER), and the number of
- lines on the page is in $$$$==== ($FORMAT_LINES_PER_PAGE).
- Whether to autoflush output on this handle is stored in $$$$||||
- ($OUTPUT_AUTOFLUSH). The string output before each top of
- page (except the first) is stored in $$$$^^^^LLLL
- ($FORMAT_FORMFEED). These variables are set on a per-
- filehandle basis, so you'll need to _s_e_l_e_c_t_(_) into a
- different one to affect them:
-
- sssseeeelllleeeecccctttt((((((((sssseeeelllleeeecccctttt((((OOOOUUUUTTTTFFFF)))),,,,
- $$$$~~~~ ==== """"MMMMyyyy____OOOOtttthhhheeeerrrr____FFFFoooorrrrmmmmaaaatttt"""",,,,
- $$$$^^^^ ==== """"MMMMyyyy____TTTToooopppp____FFFFoooorrrrmmmmaaaatttt""""
- ))))[[[[0000]]]]))));;;;
-
- Pretty ugly, eh? It's a common idiom though, so don't be
- too surprised when you see it. You can at least use a
- temporary variable to hold the previous filehandle: (this
- is a much better approach in general, because not only
- does legibility improve, you now have intermediary stage
- in the expression to single-step the debugger through):
-
- $$$$ooooffffhhhh ==== sssseeeelllleeeecccctttt((((OOOOUUUUTTTTFFFF))));;;;
- $$$$~~~~ ==== """"MMMMyyyy____OOOOtttthhhheeeerrrr____FFFFoooorrrrmmmmaaaatttt"""";;;;
- $$$$^^^^ ==== """"MMMMyyyy____TTTToooopppp____FFFFoooorrrrmmmmaaaatttt"""";;;;
- sssseeeelllleeeecccctttt(((($$$$ooooffffhhhh))));;;;
-
- If you use the English module, you can even read the
- variable names:
-
- uuuusssseeee EEEEnnnngggglllliiiisssshhhh;;;;
- $$$$ooooffffhhhh ==== sssseeeelllleeeecccctttt((((OOOOUUUUTTTTFFFF))));;;;
- $$$$FFFFOOOORRRRMMMMAAAATTTT____NNNNAAAAMMMMEEEE ==== """"MMMMyyyy____OOOOtttthhhheeeerrrr____FFFFoooorrrrmmmmaaaatttt"""";;;;
- $$$$FFFFOOOORRRRMMMMAAAATTTT____TTTTOOOOPPPP____NNNNAAAAMMMMEEEE ==== """"MMMMyyyy____TTTToooopppp____FFFFoooorrrrmmmmaaaatttt"""";;;;
- sssseeeelllleeeecccctttt(((($$$$ooooffffhhhh))));;;;
-
- But you still have those funny _s_e_l_e_c_t_(_)s. So just use the
- FileHandle module. Now, you can access these special
- variables using lower-case method names instead:
-
- uuuusssseeee FFFFiiiilllleeeeHHHHaaaannnnddddlllleeee;;;;
- ffffoooorrrrmmmmaaaatttt____nnnnaaaammmmeeee OOOOUUUUTTTTFFFF """"MMMMyyyy____OOOOtttthhhheeeerrrr____FFFFoooorrrrmmmmaaaatttt"""";;;;
- ffffoooorrrrmmmmaaaatttt____ttttoooopppp____nnnnaaaammmmeeee OOOOUUUUTTTTFFFF """"MMMMyyyy____TTTToooopppp____FFFFoooorrrrmmmmaaaatttt"""";;;;
-
- Much better!
-
- NNNNOOOOTTTTEEEESSSS
- Since the values line may contain arbitrary expressions
- (for at fields, not caret fields), you can farm out more
- sophisticated processing to other functions, like
-
-
-
- 30/Jan/96 perl 5.002 with 4
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- _s_p_r_i_n_t_f_(_) or one of your own. For example:
-
- ffffoooorrrrmmmmaaaatttt IIIIddddeeeennnntttt ====
- @@@@<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- &&&&ccccoooommmmmmmmiiiiffffyyyy(((($$$$nnnn))))
- ....
-
- To get a real at or caret into the field, do this:
-
- ffffoooorrrrmmmmaaaatttt IIIIddddeeeennnntttt ====
- IIII hhhhaaaavvvveeee aaaannnn @@@@ hhhheeeerrrreeee....
- """"@@@@""""
- ....
-
- To center a whole line of text, do something like this:
-
- ffffoooorrrrmmmmaaaatttt IIIIddddeeeennnntttt ====
- @@@@||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
- """"SSSSoooommmmeeee tttteeeexxxxtttt lllliiiinnnneeee""""
- ....
-
- There is no builtin way to say "float this to the right
- hand side of the page, however wide it is." You have to
- specify where it goes. The truly desperate can generate
- their own format on the fly, based on the current number
- of columns, and then _e_v_a_l_(_) it:
-
- $$$$ffffoooorrrrmmmmaaaatttt ==== """"ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT ==== \\\\nnnn"""";;;;
- .... ''''^^^^'''' .... ''''<<<<'''' xxxx $$$$ccccoooollllssss .... """"\\\\nnnn"""";;;;
- .... ''''$$$$eeeennnnttttrrrryyyy'''' .... """"\\\\nnnn"""";;;;
- .... """"\\\\tttt^^^^"""" .... """"<<<<"""" xxxx (((($$$$ccccoooollllssss----8888)))) .... """"~~~~~~~~\\\\nnnn"""";;;;
- .... ''''$$$$eeeennnnttttrrrryyyy'''' .... """"\\\\nnnn"""";;;;
- .... """"....\\\\nnnn"""";;;;
- pppprrrriiiinnnntttt $$$$ffffoooorrrrmmmmaaaatttt iiiiffff $$$$DDDDeeeebbbbuuuuggggggggiiiinnnngggg;;;;
- eeeevvvvaaaallll $$$$ffffoooorrrrmmmmaaaatttt;;;;
- ddddiiiieeee $$$$@@@@ iiiiffff $$$$@@@@;;;;
-
- Which would generate a format looking something like this:
-
- ffffoooorrrrmmmmaaaatttt SSSSTTTTDDDDOOOOUUUUTTTT ====
- ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
- $$$$eeeennnnttttrrrryyyy
- ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<~~~~~~~~
- $$$$eeeennnnttttrrrryyyy
- ....
-
- Here's a little program that's somewhat like _f_m_t(1):
-
- ffffoooorrrrmmmmaaaatttt ====
- ^^^^<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ~~~~~~~~
- $$$$____
-
- ....
-
-
-
-
- 30/Jan/96 perl 5.002 with 5
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- $$$$//// ==== '''''''';;;;
- wwwwhhhhiiiilllleeee ((((<<<<>>>>)))) {{{{
- ssss////\\\\ssss****\\\\nnnn\\\\ssss****//// ////gggg;;;;
- wwwwrrrriiiitttteeee;;;;
- }}}}
-
-
- FFFFooooooootttteeeerrrrssss
-
- While $$$$FFFFOOOORRRRMMMMAAAATTTT____TTTTOOOOPPPP____NNNNAAAAMMMMEEEE contains the name of the current
- header format, there is no corresponding mechanism to
- automatically do the same thing for a footer. Not knowing
- how big a format is going to be until you evaluate it is
- one of the major problems. It's on the TODO list.
-
- Here's one strategy: If you have a fixed-size footer, you
- can get footers by checking $$$$FFFFOOOORRRRMMMMAAAATTTT____LLLLIIIINNNNEEEESSSS____LLLLEEEEFFFFTTTT before each
- _w_r_i_t_e_(_) and print the footer yourself if necessary.
-
- Here's another strategy; open a pipe to yourself, using
- ooooppppeeeennnn((((MMMMEEEESSSSEEEELLLLFFFF,,,, """"||||----"""")))) (see the ooooppppeeeennnn(((()))) entry in the _p_e_r_l_f_u_n_c
- manpage) and always _w_r_i_t_e_(_) to MESELF instead of STDOUT.
- Have your child process postprocesses its STDIN to
- rearrange headers and footers however you like. Not very
- convenient, but doable.
-
- AAAAcccccccceeeessssssssiiiinnnngggg FFFFoooorrrrmmmmaaaattttttttiiiinnnngggg IIIInnnntttteeeerrrrnnnnaaaallllssss
-
- For low-level access to the formatting mechanism. you may
- use _f_o_r_m_l_i_n_e_(_) and access $$$$^^^^AAAA (the $$$$AAAACCCCCCCCUUUUMMMMUUUULLLLAAAATTTTOOOORRRR variable)
- directly.
-
- For example:
-
- $$$$ssssttttrrrr ==== ffffoooorrrrmmmmlllliiiinnnneeee <<<<<<<<''''EEEENNNNDDDD'''',,,, 1111,,,,2222,,,,3333;;;;
- @@@@<<<<<<<<<<<< @@@@|||||||||||| @@@@>>>>>>>>>>>>
- EEEENNNNDDDD
-
- pppprrrriiiinnnntttt """"WWWWoooowwww,,,, IIII jjjjuuuusssstttt ssssttttoooorrrreeeedddd ````$$$$^^^^AAAA'''' iiiinnnn tttthhhheeee aaaaccccccccuuuummmmuuuullllaaaattttoooorrrr!!!!\\\\nnnn"""";;;;
-
- Or to make an _s_w_r_i_t_e_(_) subroutine which is to _w_r_i_t_e_(_) what
- _s_p_r_i_n_t_f_(_) is to _p_r_i_n_t_f_(_), do this:
-
- uuuusssseeee CCCCaaaarrrrpppp;;;;
- ssssuuuubbbb sssswwwwrrrriiiitttteeee {{{{
- ccccrrrrooooaaaakkkk """"uuuussssaaaaggggeeee:::: sssswwwwrrrriiiitttteeee PPPPIIIICCCCTTTTUUUURRRREEEE AAAARRRRGGGGSSSS"""" uuuunnnnlllleeeessssssss @@@@____;;;;
- mmmmyyyy $$$$ffffoooorrrrmmmmaaaatttt ==== sssshhhhiiiifffftttt;;;;
- $$$$^^^^AAAA ==== """""""";;;;
- ffffoooorrrrmmmmlllliiiinnnneeee(((($$$$ffffoooorrrrmmmmaaaatttt,,,,@@@@____))));;;;
- rrrreeeettttuuuurrrrnnnn $$$$^^^^AAAA;;;;
- }}}}
-
-
-
-
-
-
- 30/Jan/96 perl 5.002 with 6
-
-
-
-
-
- PERLFORM(1) User Contributed Perl Documentation PERLFORM(1)
-
-
- $$$$ssssttttrrrriiiinnnngggg ==== sssswwwwrrrriiiitttteeee((((<<<<<<<<''''EEEENNNNDDDD'''',,,, 1111,,,, 2222,,,, 3333))));;;;
- CCCChhhheeeecccckkkk mmmmeeee oooouuuutttt
- @@@@<<<<<<<<<<<< @@@@|||||||||||| @@@@>>>>>>>>>>>>
- EEEENNNNDDDD
- pppprrrriiiinnnntttt $$$$ssssttttrrrriiiinnnngggg;;;;
-
-
- WWWWAAAARRRRNNNNIIIINNNNGGGG
- Lexical variables (declared with "my") are not visible
- within a format unless the format is declared within the
- scope of the lexical variable. (They weren't visible at
- all before version 5.001.) Furthermore, lexical aliases
- will not be compiled correctly: see the mmmmyyyy entry in the
- _p_e_r_l_f_u_n_c manpage for other issues.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- 30/Jan/96 perl 5.002 with 7
-
-
-