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authorJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 20:36:01 +0000
committerJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 20:36:01 +0000
commit2f4268e5e02216be53cd85816362191373512463 (patch)
tree57165bf2889337044bc3633854e5aa38f7d89e6b /doc/user/cpp
parent73d840b9f14b65166b92e6b43f930fd0ef7b8267 (diff)
downloadlout-2f4268e5e02216be53cd85816362191373512463.tar.gz
Lout 3.20.
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-@Chapter
- @Title { Computer Programs }
- @Tag { cprint }
-@Begin
-@LP
-This chapter describes how to typeset computer program text using Lout
-in conjunction with the @Code prg2lout
-prg2lout. @Index { @Code prg2lout filter program }
-@FootNote {
-Prior to Version 3.18 of Lout, this chapter described how to typeset
-programs written in the C programming language using the
-@Code c2lout filter, and Eiffel programs using the @Code eif2lout
-filter. These have now been withdrawn and replaced by {@Code prg2lout},
-which handles multiple languages. Ordinary Lout documents require no
-modifications as a result of this change.
-}
-filter program, which is always installed wherever Lout is.
-@PP
-It is possible to simply print out one or more program files independently
-of any document. Alternatively, the program text may be printed as part of
-a larger Lout document. Either way, Lout does not lay out the programs in
-the sense of choosing line breaks and indenting; it uses whatever line
-breaks and indenting you give to the program. What Lout does do is cope
-with characters in the program text that it would ordinarily either reject
-or interpret in some way (braces and so on), ensuring that you can include
-program texts with absolutely no modifications; plus, if you wish, Lout
-will print keywords in bold, identifiers in italics, etc.
-@PP
-At the time of writing, the available programming languages are:
-eiffel. @Index { Eiffel program printing }
-c. @Index { C and C++ program printing }
-blue. @Index { Blue program printing }
-@CD @Tbl
- mv { 0.5vx }
- af { Italic }
- arb { yes }
- aformat { @Cell A | @Cell B | @Cell C | @Cell D | @Cell E }
- bformat { @Cell A | @Cell @Code B | @Cell @Code C | @Cell @Code D | @Cell E }
-{
-@Rowa
- A { Language name }
- B { Setup file name }
- C { Lout symbol }
- D { Default style }
- E { ` ' escapes }
-@Rowb
- A { C, C++ }
- B { cprint }
- C { "@CP" }
- D { fixed }
- E { No }
-@Rowb
- A { Eiffel }
- B { eiffel }
- C { "@Eiffel" }
- D { varying }
- E { Yes }
-@Rowb
- A { Blue }
- B { blue }
- C { "@Blue" }
- D { varying }
- E { Yes }
-}
-C and C++ are handled together since, for formatting purposes, they
-differ only in that C++ has some additional keywords plus an extra
-way to make comments. Whenever we mention C from now on, we mean
-both C and C++. The second to fifth columns of this table will be
-explained at various points later in this chapter.
-@PP
-The list of languages is likely to expand, because the @Code "prg2lout"
-program has been designed to make it easy to add new languages. Consult
-the instructions at the top of the source file of that program if you
-want to try it yourself.
-@BeginSections
-@Include { cpp_lone }
-@Include { cpp_embe }
-@Include { cpp_opti }
-@Include { cpp_chan }
-@Include { cpp_tabs }
-@Include { cpp_comm }
-@Include { cpp_prog }
-@Include { cpp_pipe }
-@Include { cpp_erro }
-@EndSections
-@End @Chapter