mirror of
https://github.com/microtherion/VocalEasel.git
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103 lines
2.9 KiB
Plaintext
103 lines
2.9 KiB
Plaintext
//
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// VLLilypondDocument.mm
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// Vocalese
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//
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// Created by Matthias Neeracher on 10/20/06.
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// Copyright 2006 __MyCompanyName__. All rights reserved.
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//
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#import "VLLilypondDocument.h"
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@interface NSMutableString (VLLilypond)
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- (void) substituteMacro:(NSString *)macro withValue:(NSString *)value;
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- (void) purgeMacros;
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@end
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@implementation NSMutableString (VLLilypond)
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- (void) substituteMacro:(NSString *)m withValue:(NSString *)value
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{
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NSString * macro = [NSString stringWithFormat:@"<{%@}>", m];
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NSRange range =
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[value rangeOfCharacterFromSet:
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[NSCharacterSet characterSetWithCharactersInString:@"\n"]];
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BOOL hasEOL= range.location != NSNotFound;
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for (range = [self rangeOfString:macro];
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range.location != NSNotFound;
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range = [self rangeOfString:macro]
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) {
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if (hasEOL) {
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//
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// Multi line substitution, figure out a prefix
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//
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NSRange prefix, suffix;
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NSRange line = [self lineRangeForRange:range];
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suffix.location = range.location+range.length;
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suffix.length = line.location+line.length-suffix.location;
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prefix.location = line.location;
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prefix.length = range.location-prefix.location;
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NSString * pfxStr = [self substringWithRange:prefix];
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NSString * nonBlank =
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[pfxStr stringByTrimmingCharactersInSet:
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[NSCharacterSet whitespaceCharacterSet]];
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NSString * sfxStr =
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[[self substringWithRange:suffix]
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stringByTrimmingCharactersInSet:
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[NSCharacterSet whitespaceCharacterSet]];
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if ([nonBlank length]) {
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NSRange nb = [pfxStr rangeOfString:nonBlank];
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prefix.length = nb.location - prefix.location;
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pfxStr =
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[[self substringWithRange:prefix]
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stringByAppendingString:@" "];
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sfxStr = [NSString stringWithFormat:@"\n%@", pfxStr];
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} else {
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range = line;
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}
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NSArray * lines = [value componentsSeparatedByString:@"\n"];
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value =
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[NSString stringWithFormat:@"%@%@%@", pfxStr,
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[lines componentsJoinedByString:
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[@"\n" stringByAppendingString:pfxStr]],
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sfxStr];
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}
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[self replaceCharactersInRange:range withString:value];
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}
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}
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- (void) purgeMacros
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{
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for (NSRange range = [self rangeOfString:@"<{"];
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range.location != NSNotFound;
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range = [self rangeOfString:@"<{"]
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)
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[self replaceCharactersInRange:[self lineRangeForRange:range]
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withString: @""];
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}
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@end
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@implementation VLDocument (Lilypond)
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- (NSData *)lilypondDataWithError:(NSError **)outError
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{
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NSBundle * bndl = [NSBundle mainBundle];
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NSString * tmpl =
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[bndl pathForResource:lilypondTemplate
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ofType:@"lyt" inDirectory:@"Templates"];
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NSStringEncoding enc = NSUTF8StringEncoding;
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NSError * err;
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NSMutableString * ly =
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[[NSString stringWithContentsOfFile:tmpl encoding:enc error:&err]
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mutableCopy];
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[ly substituteMacro:@"VLVERSION" withValue:
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[bndl objectForInfoDictionaryKey:@"CFBundleVersion"]];
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[ly purgeMacros];
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return [ly dataUsingEncoding:enc];
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}
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@end
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