Erase previous word or word-like phrase. Erases the last Lojban word, treating certain special cases as a single word. These cases are due to special cmavo which are identified in their definitions as changing other words into words of the pseudo selma'o any-string or any-word. The construct erased by "si" becomes invisible to the rest of the text. Any number of "si" at the beginning of text have no effect, but are not in error.
Keywords: Erase word, erase previous word, oops.
Examples of si Usage
Proposed Definition of sa
sa (SA)
Erase specified previous utterance. Erases a complete or partial utterance. The next word after "sa" shows how much erasing to do: "sa" erases the preceding text back until it sees a word of the same selma'o as the word that follows it; this earlier word is also erased. If you have no idea what a selma'o is, read "the same word" for "the same selma'o". In other words, "sa" replaces itself and all text back to the most recent previous instance of a word of the same selma'o as the following word, inclusive, with the following word. Words whose selma'o has been changed to any-word or any-string by certain other special cmavo are invisible to "sa" for purposes of deciding what to erase; they are erased as any other word would be. If a word of the same selma'o is not found (which will always be the case with SI, SA and SU), it erases back to the beginning of text. Any number of "sa" at the beginning of text have no effect, but are not in error. To back out of a SA spoken in error, simply follow the SA with the word that preceded it.
Keywords: Erase utterance.
Examples of si Usage
Proposed Definition of su
su (SU)
Erase previous discourse. Erases all words back to the beginning of the discourse or text. More precisely, "su" erases back to the previous word of selma'o NIhO, LU, TUhE, or TO. The construct becomes invisible to the rest of the text. Any number of "su" at the beginning of text have no effect, but are not in error. Use "su" to drop a subject or start over. One "su" erases the speaker's discourse, and two "su" in a row erase the entire conversation.
Keywords: Erase discourse.
Examples of su Usage
Impact
No substantial impact that I am aware of. Interactions of these cmavo with other Magic Words have changed greatly, but that is due to the new definitions of those words.