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PROGRAM:

NAME


jbofihe - Lojban parser / grammar checker / word glosser

SYNOPSIS


jbofihe [-v] [ -h | --help | -? ] [ -k ] [ -t ] [-tf ] [ -l ] [ -b ] [ -x ] [ -H ] [ -m ]
[ -w width ] [-ie] [-re] [-se] [-sev] [-cr] [-bt] [filename]

DESCRIPTION


jbofihe is a program that reads a piece of Lojban text and checks it for grammatical
correctness. If it passes, the output will show the nesting of the major grammatical
constructs by means of bracketing. Also, words will have their approximate English
translations shown. Some of these translations are context-dependent.

OPTIONS


-v Show the program version and exit.

-h Show help page

--help Show help page

-? Show help page

-k Display lists of tokens after parse and after pseudo-token insertion (mainly useful
for debugging the lexer and parser).

-t Produce a syntax tree on stdout. Nodes with only one child will be filtered out.

-tf Produce a full syntax tree on stdout, including nodes with only one child.

-l Produce output for typesetting with LaTeX.

-x Produce plain text output.

-w width
Set the width of the screen (in characters) for the -x option.

-H Produce HTML output

-b Produce output in 'block' mode, where each block shows the Lojban, the English
gloss and a term tag where applicable. The default is the same line. Only
applicable to -l and -x (not to -h).

-m Show the amount of memory used by the processing.

-ie Display elided separators and terminators in the output. They are shown in upper
case, to distinguish them from those originally present in the input text.

-re Require the input text to have all elidable cmavo actually present. (May be useful
for forcing the user to think about the grammatical structure of the input text
more carefully when debugging parse errors.)

-se Show any elidable cmavo that were present unnecessarily in the input text. Where a
sequence of elidable cmavo occur, but not all could have been elided, a list of
possible 'minimal' sequences is shown. Each 'minimal' sequence is such that :
removing any words from it would cause the meaning of the text to change (or make
it ungrammatical); yet preserving any more of the original words is unnecessary to
preserve the meaning and grammatical correctness of the text. Note, -se and -re
are mutually incompatible. If both switches are specified, -re is assumed.

-sev For each sequence of elidable cmavo, show where later ones could be valid before
earlier ones, and where the non-elidable word at the end of the sequence could have
been valid earlier in the sequence. [This information is used to determine the
output of -se, so this is a verbose mode for -se].

-cr Allow lujvo to contain the cultural rafsi forms CCVVCy (CCVVCV at end of word)
described in section 4.16 of the Reference Grammar. This affects recognition of
valid lujvo and fu'ivla forms (the latter since it affects the recognition of
slinku'i failures).

-bt Show backtrace through the pending parser states when a syntax error occurs. This
may give some insight into what the parser was expecting to see next, to help in
fixing the error.

The backtrace comes in three parts. The first part is a list of rules which are
automatically reduced when the erroneous word is encountered. In the extreme case,
when everything prior to the erroneous word constitutes a complete text in its own
right, the reduction sequence will go right the way to the rule which matches a
complete text. Generally though, this will not be the case.

The second part of the report shows the conditions where the grammar requires the
next word to be of a type other than that which actually appeared. All the active
rules are shown (with periods showing the active points), followed by a list of
word classes (i.e. selma'o or BRIVLA/CMENE etc) that would have been valid at this
point.

The third part of the report shows the pending states on the parser stack. This
may give some information on whereabouts at a wider level the problem situation has
occurred.

filename
The name of the file containing text to be parsed. If omitted, the text is read
from standard input.

EXIT STATUS


0 The text was scanned and parsed successfully - the text was grammatically valid
Lojban.

1/2 The text had grammatical errors that were detected by the main parsing algorithm.

3 The text contained words whose structure was not valid Lojban. No grammatical
checking of the text was performed; the grammatical function of the erroneous
word(s) could not be determined.

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