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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/RTF-1_06a1/Notes
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+Need a mapping for symbol font if writer writing output format without
+symbol font capability. E.g., for troff, alpha -> \(*a.
+
+On error in destination readers - could read until closing "}" instead
+of panicing. (Assuming that no state push is done inside dest readers.)
+The program could continue this way.
+
+rtf version 0 files may have font tables in which the font entries don't
+have braces around them.
+
+The reader enforces very few syntactic constraints. For example, it
+does not enforce:
+\ertf\fIn\fR must follow first open brace.
+Charset control symbol must follow \ertf\fIn\fR.
+Default found (\edeff\fIn\fR), if given, must precede font table.
+Font table, stylesheet, color table, summary information group, document
+formatting properties must precede all document content text.
+Font table should precede stylesheet.
+
+The troff writer does not ignore groups which specify foreground or
+background colors.
+The RTF specification says "if the file is translated by software that
+does not display color," the group should be ignored.
+Aside from the fact that very little software displays color, it seems
+unnecessary to throw out color text instead of simply writing it out
+normally.
+
+Border symbols are found in the specification both under picture and
+paragraph descriptions. The reader treats them as paragraph attributes.
+
+Some footnote control symbols (\eftnsep, \eftnsepc, \eftncn) are listed
+in the specification as document formatting attributes. Since they begin
+a group, the reader treats them as destinations.
+
+\epgnstart and \elinestart are listed under section and documnent formatting
+properties. The reader treats them as document properties.
+
+The less complete specification has the wrong names for the section break
+symbols.
+
+Foreground and background color symbols \ecf and \ebf are listed under the
+color table description. The reader treats them as character formatting
+properties.