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author | Mattias Andrée <maandree@operamail.com> | 2015-12-02 10:09:15 +0100 |
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committer | Mattias Andrée <maandree@operamail.com> | 2015-12-02 10:09:15 +0100 |
commit | 3a652d1f419bec2fe8d013b64f3bbc8e446a47b3 (patch) | |
tree | 91adeeacb695ecf9a564d7b11db695ce15a977db /info/auto-auto-complete.texinfo | |
parent | improve readme (diff) | |
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improve makefile and move info/ into doc/
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'info/auto-auto-complete.texinfo')
-rw-r--r-- | info/auto-auto-complete.texinfo | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/info/auto-auto-complete.texinfo b/info/auto-auto-complete.texinfo deleted file mode 100644 index 0931933..0000000 --- a/info/auto-auto-complete.texinfo +++ /dev/null @@ -1,651 +0,0 @@ -\input texinfo @c -*-texinfo-*- - -@c %**start of header -@setfilename auto-auto-complete.info -@settitle auto-auto-complete -@afourpaper -@documentencoding UTF-8 -@documentlanguage en -@finalout -@c %**end of header - - -@dircategory Development -@direntry -* auto-auto-complete: (auto-auto-complete). Autogenerate shell auto-completion scripts -@end direntry - - -@copying -Copyright @copyright{} 2014, 2015 Mattias Andrée - -@quotation -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, with no Front-Cover Texts, and with no Back-Cover -Texts. A copy of the license is included in the section entitled -``GNU Free Documentation License''. -@end quotation -@end copying - -@ifnottex -@node Top -@top auto-auto-complete -- Autogenerate shell auto-completion scripts -@insertcopying -@end ifnottex - -@titlepage -@title auto-auto-complete -@subtitle Autogenerate shell auto-completion scripts -@author by Mattias Andrée (maandree) - -@page -@c @center `' -@vskip 0pt plus 1filll -@insertcopying -@end titlepage - -@contents - - - -@menu -* Overview:: Brief overview of @command{auto-auto-complete}. -* Invoking:: Invocation of @command{auto-auto-complete}. -* Syntax:: The auto-auto-complete syntax. -* GNU Free Documentation License:: Copying and sharing this manual. -@end menu - - - -@node Overview -@chapter Overview - -@command{auto-auto-complete} provides a LISP-like -@footnote{A sane alternative to using XML.} declarative -language for creating auto-completion scripts for commands -in a shell-agnostic way. The current version of -@command{auto-auto-complete} can use such files to generate -auto-completion scripts for the @command{bash}, @command{zsh} -and @command{fish} shells. - -@command{auto-auto-complete}'s language limited in comparsion -to for example raw auto-completion scripts for the @command{bash} -shell, however it is well enough for most projects. - - - -@node Invoking -@chapter Invoking - -@command{auto-auto-complete} recognises two options: - -@table @option -@item -o -@itemx --output OUTPUT_FILE -Specifies the pathname of the generated file. - -@item -s -@itemx -f -@itemx --file -@itemx --source SOURCE_FILE -Specifies the pathname of the auto-auto-complete script. -@end table - -Both of these options must be used. Additionally -the shell that the generate file should be generated -for must be specified; this is done by adding name -of the shell as a stand-along argument, for example -@command{auto-auto-complete bash --output mycmd.bash --source mycmd.autocomplete} - -It is also possible to define variables that can be -used the auto-auto-complete script. If you, for example, -want to give the variable @var{command} the value -@code{mycmd}, add the argument @option{command=mycmd}. -It is also possible to define arrays, for example -if you want the variable @var{srcopt} to be an array -of the for values @code{-s}, @code{-f}, @code{--source} -and @code{--file}, add the arguments @option{srcopt=-s}, -@option{srcopt=-f}, @option{srcopt=--source} and -@option{srcopt=--file}. It is not possible to have -variable whose name begin with a dash (`-'). - -Alternatively you can run -@command{auto-auto-complete SHELL --where COMMAND} -(alternatively with @option{-w} instead of -@option{--where}). This will print the pathname -you should use for the generated file when installing -it. However the path prefix will not be included, -so if your package is installed to @file{/usr} -@footnote{The command being installed to @file{/usr/bin} -or @file{/usr/sbin}.}, you sould prepend @file{/usr} -to the output. - - - -@node Syntax -@chapter Syntax - -@command{auto-auto-complete} uses a LISP-like free form -syntax. Valid whitespace is normal blank space, horizontal -tab space@footnote{Also know simply as tab.}, -carriage return@footnote{The first character in a new line -in for example the HTTP protocol and in Window's encoding -for new lines, it was the new line character in the classical -Mac operating systems}, line feed (new line) and form feed -(new page). Comments can be started with either a semicolon -(;) or a hash (#). Comments end at the next following -new line, which may either be a carriage return, line feed -or form feed. Comments cannot be started inside quotes. - -The backslash character (\) can be used to force the -following character to be parsed verbatim, this is called -escaping. It is highly discourage to use this to escape -new lines, especially if the new line encoding used in the -document is carrige return–line feed, as that would only -escape the carrige return. There is also a set of characters -that have a special meaning when they are escaped: - -@table @asis -@item a -Audible bell character. -@item b -Backspace character. -@item e -Escape character. -@item f -Form feed character. -@item n -Line feed character. -@item r -Carriage character. -@item t -Horizontal tab space character. -@item v -Vertical tab space character. -@item 0 -Null character. -@end table - -Quotes, either simple quotes (') or double quotes (") -can be used to parse all character verbatim except -backslash (\). A quote ends at the next quote character -that is not escaped by a backslash (\) and is identical -to the opening quote character. This is especially useful -for escaping whitespace and round brackets. - -The rest of this chapter will demonstrate how to write a -script by example of @command{ponysay} (because it uses -most of the syntax). - -The first thing we do is to declare which command the -script is for. We do this by creating the root brackets -and put the name of the command as the first element. - -@example -(ponysay) -@end example - -However, @command{ponysay} has a very similar command -called @command{ponythink}. It is sensible to let the -same script be used for auto-complete for both commands, -to do this we utilise that we can define variables -when we invoke @command{auto-auto-complete}. - -@example -((value command)) -@end example - -Now when we compile this script we need invoke -@command{auto-auto-complete} with either -@option{command=ponysay} or @option{command=ponythink}. -If we want @command{ponysay} to be used if we -do not specify a value for @var{command} we instead -write: - -@example -((value command ponysay)) -@end example - -Remember that we could give a variable multiple values. -This can also be done here. However in this example -we only want one value. For example, @command{((value var a b))} -would generate @command{(a b)} if @var{var} has not been set. - -@command{ponysay} recognises the options @option{-h} and -@option{--help} for printing a summary of recognised options. -These options does not take any arguments and hence are specified -with @code{(unargumented)}. - -@example -((value command ponysay) - (unargumented (options -h --help) - (desc 'Show summary of options')) -) -@end example - -This only specifies that these option exists, if we also want -the generated scripts to suggest @option{--help} we need to -add @code{(complete --help)}. - -@example -((value command ponysay) - (unargumented (options -h --help) - (complete --help) - (desc 'Show summary of options')) -) -@end example - -Now that we have our first option, lets add a few others, to -keep the example short, we will skip the most of the options. - -@example -((value command ponysay) - (unargumented (options -h --help) - (complete --help) - (desc 'Show summary of options')) - (unargumented (options -l --list) - (complete --list) - (desc 'List all MLP:FiM ponies')) - (unargumented (options +l ++list) - (complete ++list) - (desc 'List all non-MLP:FiM ponies')) - (unargumented (options -X --256-colours --256colours --x-colours) - (desc 'Use xterm colours')) -) -@end example - -Now (especially if we had added all options) we have many -@code{(unargumented)} blocks. We can use @code{(multiple)} -so we do not have to write @code{unargumented} so many times. - -@example -((value command ponysay) - (multiple unargumented - ((options -h --help) (complete --help) - (desc 'Show summary of options')) - ((options -l --list) (complete --list) - (desc 'List all MLP:FiM ponies')) - ((options +l ++list) (complete ++list) - (desc 'List all non-MLP:FiM ponies')) - ((options -X --256-colours --256colours --x-colours) - (desc 'Use xterm colours')) - ) -) -@end example - -To keep this example short we will truncate this to: - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. -) -@end example - -@command{ponysay} also have a number of options that does -take an argument. We will add a few of them. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) - (desc 'Specify wrapping column')) - ((options +c --colour) (complete --colour) - (desc 'Specify colour of the balloon, balloon link and message')) - ) -) -@end example - -Just like @command{ponysay --help} prints @code{--wrap COLUMN} -to indicate that the argument for @option{--wrap} is is an -index of the column where the message printed by @command{ponysay} -is wrapped, shells could display the text @code{COLUMN} as -a placeholder for the next argument when you have typed -@option{--wrap}. To enable this in shells that support it, -we use @code{(arg)}. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) (arg PONY) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) (arg STYLE) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) (arg COLUMN) - (desc 'Specify wrapping column)') - ((options +c --colour) (complete --colour) (arg ANSI-COLOUR) - (desc 'Specify colour of the balloon, balloon link and message')) - ) -) -@end example - -The next step now is to specify the type of argument the options -want. To do this we use @code{(files)}. The elements in @code{(files)} -specify what type of file the shell should suggest. Multiple -type can be used. Tehe recognsied ones are: - -@table @code -@item -0 -Do not suggest files, or do not suggest files of types specified -after @code{-0}. -@item -a -Suggest all files. -@item -f -Suggest regular files and pipes. -@item -r -Suggest regular files but not pipes. -@item -d -Suggest directories. -@item -l -Suggest symlinks. This is suggest by default, -but @code{-0} can be used to stop this. -@item -s -Suggest sockets. -@item -D -Suggest doors. -@end table - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) (arg PONY) - (files -f) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) (arg STYLE) - (files -f) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) (arg COLUMN) - (files -0) - (desc Specify wrapping column)) - ((options +c --colour) (complete --colour) (arg ANSI-COLOUR) - (files -0) - (desc 'Specify colour of the balloon, balloon link and message')) - ) -) -@end example - -@code{(files)} can also be used to specify patterns (using -@code{sh}-globbing) for the filenames of the files to suggest. -For example @code{--pony} in @command{ponysay} should only, -in respect to files, suggest files that end with @code{.pony}. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) (arg PONY) - (files -f *.pony) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) (arg STYLE) - (files -f *.say) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) (arg COLUMN) - (files -0) - (desc Specify wrapping column)) - ((options +c --colour) (complete --colour) (arg ANSI-COLOUR) - (files -0) - (desc 'Specify colour of the balloon, balloon link and message')) - ) -) -@end example - -For @option{--balloon} files ending with @code{.say} should be -suggested if the completion is for @command{ponysay}, but for -@command{ponythink} @code{.think}-files should be suggest. -We can use @code{(case)} to select this based on the value of -the first element in the root block, which is the name of the command. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) (arg PONY) - (files -f *.pony) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) (arg STYLE) - (files -f (case (ponysay *.say) (ponythink *.think))) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) (arg COLUMN) - (files -0) - (desc Specify wrapping column)) - ((options +c --colour) (complete --colour) (arg ANSI-COLOUR) - (files -0) - (desc 'Specify colour of the balloon, balloon link and message')) - ) -) -@end example - -Another part of options with arguments is suggestions that are not -based on filenames. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented - ((options -f --file --pony) (complete --file --pony) (arg PONY) - (suggest pony-f) (files -f *.pony) - (desc 'Specify the pony that should printed')) - ((options -b --bubble --balloon) (complete --balloon) (arg STYLE) - (suggest balloon) - (files -f (case (ponysay *.say) (ponythink *.think))) - (desc 'Specify message balloon style')) - ((options -W --wrap) (complete --wrap) (arg COLUMN) - (suggest wrap) (files -0) - (desc Specify wrapping column)) - ((options +c --colour) (complete --colour) (arg ANSI-COLOUR) - (files -0) - (desc 'Specify colour of the balloon, balloon link and message')) - ) - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -Lets cut out the options again to make this shorter. - -@example -((value command ponysay) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented ...) ;We have cut out the options. - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -Another part of ponysay is that it will take also -argument that are not associated with an option make -make a message it prints out of thiat. - -@example -((value command ponysay) - (default (arg MESSAGE) (files -0) (suggest message) - (desc 'Message spoken by the pony')) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented ...) ;We have cut out the options. - (suggestion message) ;We will fill this in later... - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -A rather unusual part of @command{ponysay} is that -it has variadic options. A variadic option is a option -that takes all following arguments, unconditionally. -For example, in @command{ponysay} you can write -@code{--ponies twilight trixie} instead of -@code{--pony twilight --pony trixie}. @code{(variadic)} -is used to declare a variadic option. @code{(bind)} -becomes interesting here; because @command{ponysay}'s -variadic options have non-variadic counterparts, it -is pleasant to reuse the non-variadic options' -configurations. @code{(bind)} will copy everything -that is missing except @code{(options)} and -@code{(complete)}. In this example we will not -use @code{(complete)} because we do not want variadic -options to be suggest but we will use @code{(desc)} -because we want to adjust the descriptions. - -@example -((value command ponysay) - (default (arg MESSAGE) (files -0) (suggest message) - (desc 'Message spoken by the pony')) - (multiple unargumented ...) ;We have cut out the options. - (multiple argumented ...) ;We have cut out the options. - (variadic (options --f --files --ponies) (bind -f) - (desc 'Specify the ponies that may be printed')) - (suggestion message) ;We will fill this in later... - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -Notice that we used @code{-f} for the element in @code{(bind)}, -this is because we want @option{--f}, @option{--files} and -@code{--ponies} to have the same configurations (with exception -for the description) as the @option{-f} option. - -Once again, to make the example shorter we will cut out -some parts. - -@example -( ;We have cut out everything but the (suggestion):s. - (suggestion message) ;We will fill this in later... - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -For @code{(suggestion message)} we want the word -`MESSAGE' to be suggested to let the user know -that the non-option arguments make up the message -that is printed (if used). - -@example -( ;We have cut out everything but the (suggestion):s. - (suggestion message (verbatim MESSAGE)) - (suggestion pony-f) ;We will fill this in later... - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -For @code{(suggestion pony-f)} we want, in addition -to the .pony-files which as already been configured, -.pony-files from @file{/usr/share/ponysay/ponies} -to be suggested without the .pony-suffix. - -@example -( ;We have cut out everything but the (suggestion):s. - (suggestion message (verbatim MESSAGE)) - (suggestion pony-f (ls "'/usr/share/ponysay/ponies'" .pony)) - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -However, if the shell supports executing comments to -get suggetions we want to utilise this. - -@example -( ;We have cut out everything but the (suggestion):s. - (suggestion message (verbatim MESSAGE)) - (suggestion pony-f (exec "'/usr/bin/ponysay'" --onelist) - (noexec ls "'/usr/share/ponysay/ponies'" .pony)) - (suggestion balloon) ;We will fill this in later... - (suggestion wrap) ;We will fill this in later... -) -@end example - -@code{(suggestion balloon)} will work very similarly. - -@example -( ;We have cut out everything but the (suggestion):s. - (suggestion message (verbatim MESSAGE)) - (suggestion pony-f (exec "'/usr/bin/ponysay'" --onelist) - (noexec ls "'/usr/share/ponysay/ponies'" .pony)) - (suggestion balloon (exec "'/usr/bin/ponysay'" --balloonlist) - (no-exec ls "'/usr/share/ponysay/balloons'" - (case (ponysay .say) (ponythink .think)))) - (suggestion wrap) ;We will fill this in later... -) -@end example - -The first thing we want to do for @option{--wrap} -is to give it some default suggestion. - -@example -( ;We have cut out everything but (suggestion wrap). - (suggestion wrap (verbatim none inherit 100 60)) -) -@end example - -The next step is to suggest the terminal's -width minus 10 columns. In the Bash shell this -can be calculated with -@command{$(( $(stty size <&2 | cut -d ' ' -f 2) - 10 ))}. - -@example -( ;We have cut out everything but (suggestion wrap). - (suggestion wrap - (verbatim none inherit 100 60) - (calc (pipe (stdin-fd (stty size) (stderr)) (cut -d ' ' -f 2)) - 10) - ) -) -@end example - -As seen here @code{(pipe (a) (b) (c))} translates into -@code{(a | b | c)}. There are a few similar blocks that -can be used. - -@table @code -@item (fullpipe (a) (b) (c)) -@code{(a |& b |& c)}, or equivalently: -@code{(a 2>&1 | b 2>&1 | c)} -@item (cat (a) (b) (c)) -@code{(a ; b ; c)} -@item (and (a) (b) (c)) -@code{(a && b && c)} -@item (or (a) (b) (c)) -@code{(a || b || c)} -@end table - -It was also shown that @code{(stdin-fd (a) (stderr))} translates -into @code{a <&2}. @code{(stdin)}, @code{(stdout)} and @code{(stderr)} -translates into @code{0}, @code{1} and @code{2}, respectively. -Additional @code{(stdin-fd a b)} translates into @code{a <&b}, -@code{(stdout-fd a b)} into @code{a >&b}, @code{(stderr-fd a b)} into @code{a 2>&b} -and @code{(fd-fd a b c)} into @code{a b<>&c}. -You can also redirect to files: - -@table @code -@item (stdin a b) -@code{a < b} -@item (stdout a b) -@code{a > b} -@item (stderr a b) -@code{a 2> b} -@item (fd a b c) -@code{a b> c} -@end table - - - -@node GNU Free Documentation License -@appendix GNU Free Documentation License -@include fdl.texinfo - -@bye - |