Liblouis User's and Programmer's Manual
2.6.2.4 Phrase indicator ¶
Some languages have a concept of a phrase where the emphasis is valid for a number of words. The beginning of the phrase is indicated with a braille dot pattern and a closing indicator is put before or after the last word of the phrase. A phrase only contains whole words. The phrase indicator is a special kind of permanent indicator that must be used in combination with a word indicator (see Permanent indicator and Word indicator).
A word is defined as a character sequence that starts and ends with
emphasizable characters and does not contain characters that are both
unemphasizable and resetting (see emphmodechars and noemphchars).
To define how many words are considered a phrase in your language use
the lenemphphrase opcode (see lenemphphrase).
begemphphrase <emphasis class> <dot pattern>Braille dot pattern to indicate the beginning of a phrase.
begemphphrase bold 456-46-46
A
begemphphraserule must always be combined with aendemphphraserule.endemphphrase <emphasis class> before <dot pattern>Braille dot pattern to indicate the end of a phrase. The closing indicator will be placed before the last word of the phrase.
endemphphrase bold before 456-46
If a table specifies
endemphphrase beforeand the dot pattern is the same as that ofbegemphword, the word scope applies whenever this indicator is used (see Word indicator).endemphphrase <emphasis class> after <dot pattern>Braille dot pattern to indicate the end of a phrase. The closing indicator will be placed after the last word of the phrase. If both
endemphphrase <emphasis class> beforeandendemphphrase <emphasis class> afterare defined an error will be signaled.endemphphrase underline after 6-3
lenemphphrase <emphasis class> <number>Define how many words are required before a sequence of words is considered a phrase.
lenemphphrase underline 3
With the above rule, a sequence of two emphasized words will not be indicated as a phrase, but the words will be indicated individually.