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/*
* Copyright (c) 2008-2012 Martin Hedenfalk <martin@vicoapp.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "ExCommand.h"
#import "ViCompletionController.h"
/** Parser for ex commands.
*/
@interface ExParser : NSObject
{
ExMap *_map;
}
@property(nonatomic,readwrite,retain) ExMap *map;
/** @returns A shared ex parser instance. */
+ (ExParser *)sharedParser;
- (ExCommand *)parse:(NSString *)string
caret:(NSInteger)completionLocation
completion:(id<ViCompletionProvider> *)completionProviderPtr
range:(NSRange *)completionRangePtr
error:(NSError **)outError;
/** Parse an ex command.
*
* @param string The whole ex command string to parse.
* @param outError Return value parameter for errors. May be `nil`.
* @returns An ExCommand, or nil on error.
*/
- (ExCommand *)parse:(NSString *)string
error:(NSError **)outError;
/** Expand filename metacharacters
*
* This method expands `%` and `#` to the current and alternate document URLs, respectively.
* The following modifiers are recognized:
*
* - `:p` -- replace with normalized path
* - `:h` -- head of url; delete the last path component (may be specified multiple times)
* - `:t` -- tail of url; replace with last path component
* - `:e` -- replace with the extension
* - `:r` -- root of url; delete the path extension
*
* To insert a literal `%` or `#` character, escape it with a backslash (`\`).
* Escapes are removed.
*
* @param string The string to expand.
* @param outError Return value parameter for errors. May be `nil`.
* @returns The expanded string.
*/
- (NSString *)expand:(NSString *)string error:(NSError **)outError;
+ (BOOL)parseRange:(NSScanner *)scan
intoAddress:(ExAddress **)addr;
+ (int)parseRange:(NSScanner *)scan
intoAddress:(ExAddress **)addr1
otherAddress:(ExAddress **)addr2;
@end
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