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| 1 Compound word hyphenation | |
| 2 | |
| 3 Hyphen library supports better compound word hyphenation and special | |
| 4 rules of compound word hyphenation of German languages and other | |
| 5 languages with arbitrary number of compound words. The new options, | |
| 6 COMPOUNDLEFTHYPHENMIN and COMPOUNDRIGHTHYPHENMIN help to set the right | |
| 7 style for the hyphenation of compound words. | |
| 8 | |
| 9 Algorithm | |
| 10 | |
| 11 The algorithm is an extension of the original pattern based hyphenation | |
| 12 algorithm. It uses two hyphenation pattern sets, defined in the same | |
| 13 pattern file and separated by the NEXTLEVEL keyword. First pattern | |
| 14 set is for hyphenation only at compound word boundaries, the second one | |
| 15 is for hyphenation within words or word parts. | |
| 16 | |
| 17 Recursive compound level hyphenation | |
| 18 | |
| 19 The algorithm is recursive: every word parts of a successful | |
| 20 first (compound) level hyphenation will be rehyphenated | |
| 21 by the same (first) pattern set. | |
| 22 | |
| 23 Finally, when first level hyphenation is not possible, Hyphen uses | |
| 24 the second level hyphenation for the word or the word parts. | |
| 25 | |
| 26 Word endings and word parts | |
| 27 | |
| 28 Patterns for word endings (patterns with ellipses) match the | |
| 29 word parts, too. | |
| 30 | |
| 31 Options | |
| 32 | |
| 33 COMPOUNDLEFTHYPHENMIN: min. hyph. dist. from the left compound word boundary | |
| 34 COMPOUNDRIGHTHYPHENMIN: min. hyph. dist. from the right comp. word boundary | |
| 35 NEXTLEVEL: sign second level hyphenation patterns | |
| 36 | |
| 37 Default hyphenmin values | |
| 38 | |
| 39 Default values of COMPOUNDLEFTHYPHENMIN and COMPOUNDRIGHTHYPHENMIN are 0, | |
| 40 and 0 under the hyphenation, too. ("0" values of | |
| 41 LEFTHYPHENMIN and RIGHTHYPHENMIN mean the default "2" under the hyphenation.) | |
| 42 | |
| 43 Examples | |
| 44 | |
| 45 See tests/compound* test files. | |
| 46 | |
| 47 Preparation of hyphenation patterns | |
| 48 | |
| 49 It hasn't been special pattern generator tool for compound hyphenation | |
| 50 patterns, yet. It is possible to use PATGEN to generate both of | |
| 51 pattern sets, concatenate it manually and set the requested HYPHENMIN values. | |
| 52 (But don't forget the preprocessing steps by substrings.pl before | |
| 53 concatenation.) One of the disadvantage of this method, that PATGEN | |
| 54 doesn't know recursive compound hyphenation of Hyphen. | |
| 55 | |
| 56 László Németh | |
| 57 <nemeth (at) openoffice.org> | |
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Chromium Code Reviews
Issue 20860003:
Remove hyphenation code from Chromium. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src