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https://github.com/skywind3000/yamlvim

mirror for yamlvim (2.1.1)
https://github.com/skywind3000/yamlvim

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mirror for yamlvim (2.1.1)

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README

          

Frawor is a modular vim framework designed to collect some commonly needed
functions.

To start using the only thing you should do is to add

execute frawor#Setup('0.0', {})

where '0.0' is your plugin version and {} is a dictionary containing plugin
dependencies (the core frawor module is added to dependencies automatically).
There are additional rules you should follow:

1. All script-local functions should be anonymous functions:

function s:F.somefunc(args)

In some plugins you may even end with having no non-anonymous function
definitions.

2. If function cannot be anonymous (because it is is to be used by `sort()`, for
example), then its name should be added to `s:_functions` list.

3. If you define a command, its name should go to `s:_commands` list, same for
autocommand groups (`s:_augroups`).

4. All script-local variables whose name starts with `s:_` are reserved and
should be used only in a way described in documentation.

Advantages
==========

1. Plugin reloading for easier development and updates without vim restart:

call frawor#Reload('plugin/frawor')

to reload all plugins (as they all depend on core frawor module).

2. Frawor provides an easier way to mappings customization:

execute frawor#Setup('0.0', {'@/mappings': '0.0'})
<...>
call s:_f.mapgroup.add('Foo',
\{'bar': {'lhs': 't', 'rhs': ':Bar'},
\ 'baz': {'lhs': 'T', 'rhs': s:F.baz}},
\{'leader': '', 'silent': 1})
will define two mappings: `t` which will call command `:Bar` and
`T` which will run `s:F.baz` function. Both mappings are silent. Now
pretend that you are the user who does not need to run `s:F.baz` and wants to
launch `:Bar` using `,t`. In this case all he needs is to add the following
lines to the vimrc:

let g:frawormap_Foo=','

let g:frawormap_Foo_bar='t'
let g:frawormap_Foo_baz=0

Replacing `','` with `0` here will lead to disabling the whole mapping
group.

3. Options:

"plugin/foo.vim:
execute frawor#Setup('0.0', {'@/options': '0.0'})
let s:_options={'columns': {'default': 80, 'checker': 'range 0 inf'}}
<...>
let columns=s:_f.getoption('columns')
<...>

"vimrc:
let g:foo_columns=78
autocmd FileType vim let b:foo_columns=78
If you don't want to prefix your options with `foo` (second component after
runtimepath of a path to your plugin), define `s:_oprefix`. Note the
`checker` key: it saves you from writing code for checking user input (but
will instead generate an exception for invalid value).

4. Function argument checks:

execute frawor#Setup('0.0', {'@/functions': '0.0'})
let s:formats={'html': ...,
\'markdown': ...}
function s:F.checkedfunc(format, columns)
<...>
endfunction
let s:F.checkedfunc=s:_f.wrapfunc({'function': s:F.checkedfunc,
\'@FWC': ['key formats '.
\ 'range 0 inf', 'check'],})

Here you can see FWC decorator which uses FWC-to-vimscript compiler where FWC
is a name of the domain-specific language written exclusively for frawor.

5. Complicated command-line arguments handling:

execute frawor#Setup('0.0', {'@/commands': '0.0'})
let s:formats={'html': ...,
\'markdown': ...,}
function s:F.run_foo(options)
" Here a:options is dictionary containing all prefixed options user
" have given on the command-line
let format=a:options.format
let columns=a:options.columns
if a:options.beatify
<...>
endif
endfunction
" Prefix default Description of
" value the prefix argument
let s:foo_args='{columns :=(80) |earg range 0 inf '.
\' format key formats '.
\'!beatify :=(0)'}'
" Define a :Foo command
call s:_f.command.add('Foo', {'function': s:F.run_foo,
\ '@FWC': [s:foo_args, 'filter'],}
\{'complete': [s:foo_args], 'nargs': '+'})
" " Example usage:
" Foo col 78 f markdown
" Foo nobeatify f html
" Foo format html beatify c 78

Note that while command accepts short versions of prefixes, `s:F.run_foo`
function will get dictionary with only full names.

6. Portable versions of OS-specific functions: vimscript implementation of some
functions from python os module.

7. Vimscript base64 encoder/decoder, fancy table echoing, maparg that returns
dictionary for old vim's and more.