471 lines
11 KiB
HTML
471 lines
11 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML Strict//EN">
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<HTML>
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<HEAD>
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<TITLE>Onsgmls Output Format</TITLE>
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</HEAD>
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<BODY>
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<H1>Onsgmls Output Format</H1>
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<P>
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The output is a series of lines.
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Lines can be arbitrarily long.
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Each line consists of an initial command character
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and one or more arguments.
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Arguments are separated by a single space,
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but when a command takes a fixed number of arguments
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the last argument can contain spaces.
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There is no space between the command character and the first argument.
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Arguments can contain the following escape sequences:
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<DL>
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<DT>
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<CODE>\\</CODE>
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<DD>
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A
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<CODE>\</CODE>.
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<DT>
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<CODE>\n</CODE>
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<DD>
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A record end character.
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<DT>
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<CODE>\|</CODE>
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<DD>
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Internal SDATA entities are bracketed by these.
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<DT>
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<CODE>\<VAR>nnn</VAR></CODE>
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<DD>
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The character whose code is
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<CODE><VAR>nnn</VAR></CODE>
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octal.
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<P>
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A record start character will be represented by
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<CODE>\012</CODE>.
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Most applications will need to ignore
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<CODE>\012</CODE>
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and translate
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<CODE>\n</CODE>
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into newline.
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<DT>
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<CODE>\#<VAR>n</VAR>;</CODE>
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<DD>
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The character whose number is
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<CODE><VAR>n</VAR></CODE>
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decimal in the internal character set.
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<CODE><VAR>n</VAR></CODE>
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can have any number of digits.
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This is used for characters that are not representable by the
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encoding used for output.
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This will only occur with the multibyte version of nsgmls.
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<DT>
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<CODE>\%<VAR>n</VAR>;</CODE>
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<DD>
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The character whose number is
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<CODE><VAR>n</VAR></CODE>
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decimal in the document character set.
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<CODE><VAR>n</VAR></CODE>
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can have any number of digits.
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This is used for data characters resulting from numeric
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character references to non-SGML characters
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in <A HREF="charset.htm#fixed">fixed character set mode</A>.
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</DL>
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<P>
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The possible command characters and arguments are as follows:
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<DL>
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<DT>
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<CODE>(<VAR>gi</VAR></CODE>
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<DD>
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The start of an element whose generic identifier is
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<CODE><VAR>gi</VAR></CODE>.
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Any attributes for this element
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will have been specified with
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<CODE>A</CODE>
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commands.
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<DT>
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<CODE>)<VAR>gi</VAR></CODE>
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<DD>
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The end of an element whose generic identifier is
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<CODE><VAR>gi</VAR></CODE>.
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<DT>
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<CODE>-<VAR>data</VAR></CODE>
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<DD>
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Data.
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<DT>
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<CODE>&<VAR>name</VAR></CODE>
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<DD>
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A reference to an external data entity
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<CODE><VAR>name</VAR></CODE>;
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<CODE><VAR>name</VAR></CODE>
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will have been defined using an
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<CODE>E</CODE>
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command.
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<DT>
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<CODE>?<VAR>pi</VAR></CODE>
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<DD>
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A processing instruction with data
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<CODE><VAR>pi</VAR></CODE>.
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<DT>
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<CODE>A<VAR>name</VAR> <VAR>val</VAR></CODE>
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<DD>
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The next element to start has an attribute
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<CODE><VAR>name</VAR></CODE>
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with value
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<CODE><VAR>val</VAR></CODE>
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which takes one of the following forms:
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<DL>
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<DT>
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<CODE>IMPLIED</CODE>
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<DD>
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The value of the attribute is implied.
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<DT>
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<CODE>CDATA <VAR>data</VAR></CODE>
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<DD>
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The attribute is character data.
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This is used for attributes whose declared value is
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<CODE>CDATA</CODE>.
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<DT>
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<CODE>NOTATION <VAR>nname</VAR></CODE>
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<DD>
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The attribute is a notation name;
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<CODE><VAR>nname</VAR></CODE>
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will have been defined using a
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<CODE>N</CODE>
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command.
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This is used for attributes whose declared value is
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<CODE>NOTATION</CODE>.
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<DT>
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<CODE>ENTITY <VAR>name...</VAR></CODE>
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<DD>
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The attribute is a list of general entity names.
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Each entity name will have been defined using an
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<CODE>I</CODE>,
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<CODE>E</CODE>
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or
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<CODE>S</CODE>
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command.
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This is used for attributes whose declared value is
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<CODE>ENTITY</CODE>
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or
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<CODE>ENTITIES</CODE>.
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<DT>
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<CODE>TOKEN <VAR>token...</VAR></CODE>
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<DD>
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The attribute is a list of tokens.
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This is used for attributes whose declared value is anything else.
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<DT>
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<CODE>ID <VAR>token</VAR></CODE>
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<DD>
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The attribute is an ID value.
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This will be output only if the
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<CODE>-oid</CODE>
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option is specified.
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Otherwise
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<CODE>TOKEN</CODE>
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will be used for ID values.
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<DT>
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<CODE>DATA <VAR>nname</VAR> <VAR>data</VAR></CODE>
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<DD>
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The attribute is character data with an associated notation.
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The definition of the notation and any applicable attributes of the notation
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will be given using subsequent <CODE>D<VAR>name</VAR> <VAR>val</VAR></CODE>
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lines. This is used for attributes whose declared value is <CODE>DATA</CODE>.
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It will be output only if the <CODE>-odata-attribute</CODE>
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option is specified. Otherwise <CODE>CDATA</CODE> will be used for DATA values.
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<DT>
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</DL>
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<DT>
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<CODE>D<VAR>ename</VAR> <VAR>name</VAR> <VAR>val</VAR></CODE>
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<DD>
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This is the same as the
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<CODE>A</CODE>
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command, except that it specifies a data attribute for an
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external entity named
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<CODE><VAR>ename</VAR></CODE>.
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Any
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<CODE>D</CODE>
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commands will come after the
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<CODE>E</CODE>
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command that defines the entity to which they apply, but
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before any
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<CODE>&</CODE>
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or
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<CODE>A</CODE>
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commands that reference the entity.
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<DT>
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<CODE>a<VAR>type</VAR> <VAR>name</VAR> <VAR>val</VAR></CODE>
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<DD>
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The next element to start has a link attribute with link type
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<CODE><VAR>type</VAR></CODE>,
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name
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<CODE><VAR>name</VAR></CODE>,
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and value
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<CODE><VAR>val</VAR></CODE>,
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which takes the same form as with the
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<CODE>A</CODE>
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command.
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<DT>
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<CODE>N<VAR>nname</VAR></CODE>
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<DD>
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Define a notation <CODE><VAR>nname</VAR></CODE>.
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This command will be preceded by a
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<CODE>p</CODE>
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command if the notation was declared with a public identifier,
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and by a
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<CODE>s</CODE>
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command if the notation was declared with a system identifier.
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If the
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<CODE>-onotation-sysid</CODE>
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option was specified,
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this command will also be preceded by an
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<CODE>f</CODE>
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command giving the system identifier generated by the entity manager
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(unless it was unable to generate one).
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A notation will only be defined if it is to be referenced
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in an
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<CODE>E</CODE>
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command or in an
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<CODE>A</CODE>
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command for an attribute with a declared value of
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<CODE>NOTATION</CODE>.
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<DT>
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<CODE>E<VAR>ename</VAR> <VAR>typ</VAR> <VAR>nname</VAR></CODE>
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<DD>
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Define an external data entity named
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<CODE><VAR>ename</VAR></CODE>
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with type
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<CODE><VAR>typ</VAR></CODE>
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(<CODE>CDATA</CODE>, <CODE>NDATA</CODE> or <CODE>SDATA</CODE>)
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and notation <CODE><VAR>not</VAR></CODE>.
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Thiscommand will be preceded by an
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<CODE>f</CODE>
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command giving the system identifier generated by the entity manager
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(unless it was unable to generate one),
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by a
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<CODE>p</CODE>
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command if a public identifier was declared for the entity,
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and by a
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<CODE>s</CODE>
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command if a system identifier was declared for the entity.
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<CODE><VAR>not</VAR></CODE>
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will have been defined using a
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<CODE>N</CODE>
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command.
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Data attributes may be specified for the entity using
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<CODE>D</CODE>
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commands.
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If the
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<CODE>-oentity</CODE>
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option is not specified,
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an external data entity will only be defined if it is to be referenced in a
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<CODE>&</CODE>
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command or in an
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<CODE>A</CODE>
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command for an attribute whose declared value is
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<CODE>ENTITY</CODE>
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or
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<CODE>ENTITIES</CODE>.
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<DT>
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<CODE>I<VAR>ename</VAR> <VAR>typ</VAR> <VAR>text</VAR></CODE>
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<DD>
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Define an internal data entity named
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<CODE><VAR>ename</VAR></CODE>
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with type
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<CODE><VAR>typ</VAR></CODE>
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and entity text
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<CODE><VAR>text</VAR></CODE>.
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The
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<CODE><VAR>typ</VAR></CODE>
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will be
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<CODE>CDATA</CODE>
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or
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<CODE>SDATA</CODE>
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unless the
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<CODE>-oentity</CODE>
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option was specified,
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in which case it can also be
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<CODE>PI</CODE>
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or
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<CODE>TEXT</CODE>
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(for an SGML text entity).
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If the
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<CODE>-oentity</CODE>
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option is not specified,
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an internal data entity will only be defined if it is referenced in an
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<CODE>A</CODE>
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command for an attribute whose declared value is
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<CODE>ENTITY</CODE>
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or
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<CODE>ENTITIES</CODE>.
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<DT>
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<CODE>S<VAR>ename</VAR></CODE>
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<DD>
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Define a subdocument entity named
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<CODE><VAR>ename</VAR></CODE>.
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This command will be preceded by an
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<CODE>f</CODE>
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command giving the system identifier generated by the entity manager
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(unless it was unable to generate one),
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by a
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<CODE>p</CODE>
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command if a public identifier was declared for the entity,
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and by a
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<CODE>s</CODE>
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command if a system identifier was declared for the entity.
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If the
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<CODE>-oentity</CODE>
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option is not specified,
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a subdocument entity will only be defined if it is referenced
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in a
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<CODE>{</CODE>
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command
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or in an
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<CODE>A</CODE>
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command for an attribute whose declared value is
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<CODE>ENTITY</CODE>
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or
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<CODE>ENTITIES</CODE>.
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<DT>
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|
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<CODE>T<VAR>ename</VAR></CODE>
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|
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<DD>
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Define an external SGML text entity named
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<CODE><VAR>ename</VAR></CODE>.
|
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|
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This command will be preceded by an
|
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<CODE>f</CODE>
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|
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command giving the system identifier generated by the entity manager
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(unless it was unable to generate one),
|
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by a
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<CODE>p</CODE>
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|
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command if a public identifier was declared for the entity,
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and by a
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<CODE>s</CODE>
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|
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command if a system identifier was declared for the entity.
|
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|
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This command will be output only if the
|
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|
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<CODE>-oentity</CODE>
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option is specified.
|
||
|
|
<DT>
|
||
|
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<CODE>s<VAR>sysid</VAR></CODE>
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|
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<DD>
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||
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This command applies to the next
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<CODE>E</CODE>,
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<CODE>S</CODE>,
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<CODE>T</CODE>
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||
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or
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<CODE>N</CODE>
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command and specifies the associated system identifier.
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||
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<DT>
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||
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<CODE>p<VAR>pubid</VAR></CODE>
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|
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<DD>
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||
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This command applies to the next
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<CODE>E</CODE>,
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<CODE>S</CODE>,
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<CODE>T</CODE>
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||
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or
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<CODE>N</CODE>
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command and specifies the associated public identifier.
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|
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<DT>
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||
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<CODE>f<VAR>sysid</VAR></CODE>
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|
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<DD>
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||
|
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This command applies to the next
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<CODE>E</CODE>,
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<CODE>S</CODE>,
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<CODE>T</CODE>
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||
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or, if the
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<CODE>-onotation-sysid</CODE>
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||
|
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option was specified,
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||
|
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<CODE>N</CODE>
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|
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command and specifies the system identifier
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||
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generated by the entity manager from the specified external identifier
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||
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and other information about the entity or notation.
|
||
|
|
<DT>
|
||
|
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<CODE>{<VAR>ename</VAR></CODE>
|
||
|
|
<DD>
|
||
|
|
The start of the SGML subdocument entity
|
||
|
|
<CODE><VAR>ename</VAR></CODE>;
|
||
|
|
<CODE><VAR>ename</VAR></CODE>
|
||
|
|
will have been defined using a
|
||
|
|
<CODE>S</CODE>
|
||
|
|
command.
|
||
|
|
<DT>
|
||
|
|
<CODE>}<VAR>ename</VAR></CODE>
|
||
|
|
<DD>
|
||
|
|
The end of the SGML subdocument entity
|
||
|
|
<CODE><VAR>ename</VAR></CODE>.
|
||
|
|
<DT>
|
||
|
|
<CODE>L<VAR>lineno</VAR> <VAR>file</VAR></CODE>
|
||
|
|
<DT>
|
||
|
|
<CODE>L<VAR>lineno</VAR></CODE>
|
||
|
|
<DD>
|
||
|
|
Set the current line number and filename.
|
||
|
|
The
|
||
|
|
<CODE><VAR>file</VAR></CODE>
|
||
|
|
argument will be omitted if only the line number has changed.
|
||
|
|
This will be output only if the
|
||
|
|
<CODE>-l</CODE>
|
||
|
|
option has been given.
|
||
|
|
<DT>
|
||
|
|
<CODE>#<VAR>text</VAR></CODE>
|
||
|
|
<DD>
|
||
|
|
An APPINFO parameter of
|
||
|
|
<CODE><VAR>text</VAR></CODE>
|
||
|
|
was specified in the SGML declaration.
|
||
|
|
This is not strictly part of the ESIS, but a structure-controlled
|
||
|
|
application is permitted to act on it.
|
||
|
|
No
|
||
|
|
<CODE>#</CODE>
|
||
|
|
command will be output if
|
||
|
|
<CODE>APPINFO NONE</CODE>
|
||
|
|
was specified.
|
||
|
|
A
|
||
|
|
<CODE>#</CODE>
|
||
|
|
command will occur at most once,
|
||
|
|
and may be preceded only by a single
|
||
|
|
<CODE>L</CODE>
|
||
|
|
command.
|
||
|
|
<DT>
|
||
|
|
<CODE>C</CODE>
|
||
|
|
<DD>
|
||
|
|
This command indicates that the document was a conforming SGML document.
|
||
|
|
If this command is output, it will be the last command.
|
||
|
|
An SGML document is not conforming if it references a subdocument entity
|
||
|
|
that is not conforming.
|
||
|
|
<DT>
|
||
|
|
<CODE>i</CODE>
|
||
|
|
<DD>
|
||
|
|
The next element to start is an included subelement.
|
||
|
|
This will be output only if the
|
||
|
|
<CODE>-oincluded</CODE>
|
||
|
|
option is specified.
|
||
|
|
<DT>
|
||
|
|
<CODE>e</CODE>
|
||
|
|
<DD>
|
||
|
|
The next element to start has a declared content of EMPTY or a content
|
||
|
|
reference attribute, and so its end-tag must be omitted.
|
||
|
|
This will be output only if the
|
||
|
|
<CODE>-oempty</CODE>
|
||
|
|
option is specified.
|
||
|
|
<DT>
|
||
|
|
<CODE>_<VAR>comment</VAR></CODE>
|
||
|
|
<DD>
|
||
|
|
A comment with data
|
||
|
|
<CODE><VAR>comment</VAR></CODE>.
|
||
|
|
This will be output only if the
|
||
|
|
<CODE>-ocomment</CODE>
|
||
|
|
option is specified.
|
||
|
|
<DT>
|
||
|
|
<CODE>o</CODE>
|
||
|
|
<DD>
|
||
|
|
The actual markup for the next
|
||
|
|
<CODE>(</CODE>,
|
||
|
|
<CODE>)</CODE>,
|
||
|
|
or
|
||
|
|
<CODE>A</CODE>
|
||
|
|
command was omitted from the input.
|
||
|
|
This will be output only if one of the
|
||
|
|
<CODE>-oomitted</CODE>,
|
||
|
|
<CODE>-otagomit</CODE>,
|
||
|
|
or
|
||
|
|
<CODE>-oattromit</CODE>
|
||
|
|
options is specified.
|
||
|
|
</DL>
|
||
|
|
</BODY>
|
||
|
|
</HTML>
|