Snippets and vim updates and such, oh my

git-svn-id: http://photonzero.com/dotfiles/trunk@33 23f722f6-122a-0410-8cef-c75bd312dd78

.vim/autoload/objc/method_builder.vim

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+" File:         objc#method_builder.vim (part of the cocoa.vim plugin)
+" Author:       Michael Sanders (msanders42 [at] gmail [dot] com)
+" Description:  Builds an empty implementation (*.m) file given a header (*.h)
+"               file. When called with no arguments (simply ":BuildMethods"),
+"               it looks for the corresponding header file of the current *.m
+"               file (e.g. "foo.m" -> "foo.h").
+" Last Updated: June 03, 2009
+"       - make sure you're not in a comment
+
+" TODO: Relative pathnames
+fun objc#method_builder#Completion(ArgLead, CmdLine, CursorPos)
+	let dir = stridx(a:ArgLead, '/') == -1 ? getcwd() : fnamemodify(a:ArgLead, ':h')
+	let search = fnamemodify(a:ArgLead, ':t')
+	let files = split(glob(dir.'/'.search.'*.h')
+	            \ ."\n".glob(dir.'/'.search.'*/'), "\n")
+	call map(files, 'fnameescape(fnamemodify(v:val, ":."))')
+	return files
+endf
+
+fun s:Error(msg)
+	echoh ErrorMsg | echo a:msg | echoh None
+	return -1
+endf
+
+fun s:GetDeclarations(file)
+	let header     = readfile(a:file)
+	let template   = []
+	let in_comment = 0
+	let in_header  = 0
+	let looking_for_semi = 0
+
+	for line in header
+		if in_comment
+			if stridx(line, '*/') != -1 | let in_comment = 0 | endif
+			continue " Ignore declarations inside multi-line comments
+		elseif stridx(line, '/*') != -1
+			let in_comment = 1 | continue
+		endif
+
+		if stridx(line, '@interface') != -1
+			let in_header = 1
+			let template += ['@implementation'.matchstr(line, '@interface\zs\s\+\w\+'), '']
+			continue
+		elseif in_header && stridx(line, '@end') != -1
+			let in_header = 0
+			call add(template, '@end')
+			break " Only process one @interface at a time, for now.
+		endif
+		if !in_header | continue | endif
+
+		let first_char = strpart(line, 0, 1)
+		if first_char == '-' || first_char == '+' || looking_for_semi
+			let semi_pos = stridx(line, ';')
+			let looking_for_semi = semi_pos == -1
+			if looking_for_semi
+				call add(template, line)
+			else
+				call add(template, strpart(line, 0, semi_pos))
+				let template += ['{', "\t", '}', '']
+			endif
+		endif
+	endfor
+	return template
+endf
+
+fun objc#method_builder#Build(header)
+	let headerfile = a:header == '' ? expand('%:p:r').'.h' : a:header
+	if expand('%:e') != 'm'
+		return s:Error('Not in an implementation file.')
+	elseif !filereadable(headerfile)
+		return s:Error('Could not read header file.')
+	endif
+
+	let declarations = s:GetDeclarations(headerfile)
+
+	if empty(declarations)
+		return s:Error('Header file has no method declarations!')
+	endif
+
+	let len = len(declarations)
+	let last_change = line('.')
+
+	if search('\V'.substitute(declarations[0], '\s\+', '\\s\\+', ''))
+		if !searchpair('@implementation', '', '@end', 'W')
+			return s:Error('Missing @end declaration.')
+		endif
+		let i = 2    " Skip past the @implementation line & blank line
+		let len -= 1 " Skip past @end declaration
+		let lnum = line('.') - 1
+	else
+		let i = 0
+		let lnum = line('.')
+	endif
+	let start_line = lnum
+
+	while i < len
+		let is_method = declarations[i][0] =~ '@\|+\|-'
+		if !is_method || !search('\V'.substitute(escape(declarations[i], '\'),
+		                      \ 'void\|IBAction', '\\(void\\|IBAction\\)', 'g'), 'n')
+			call append(lnum, declarations[i])
+			let lnum += 1
+			if is_method | let last_change = lnum | endif
+		else " Skip method declaration if it is already declared.
+			if declarations[i][0] == '@'
+				let i += 1
+			else
+				while declarations[i] != '}' && i < len
+					let i += 1
+				endw
+				let i += 1
+			endif
+		endif
+		let i += 1
+	endw
+	call cursor(last_change, 1)
+
+	if lnum == start_line
+		echoh WarningMsg
+		let class = matchstr(declarations[0], '@implementation\s\+\zs.*')
+		echo 'The methods for the "'.class.'" class have already been declared.'
+		echoh None
+	endif
+endf
+" vim:noet:sw=4:ts=4:ft=vim