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author | Ingo Schwarze <schwarze@openbsd.org> | 2018-12-15 19:30:25 +0000 |
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committer | Ingo Schwarze <schwarze@openbsd.org> | 2018-12-15 19:30:25 +0000 |
commit | d672f8cb82878baf3834e938c4c416f4493952cf (patch) | |
tree | a46f3c1570ef9a8cdb5d67fd75e3bb77c8e4068f /regress/roff/esc/unsupp.in | |
parent | bb4f86d616ee99eb82c0875af27b9d8a216ecfdc (diff) | |
download | mandoc-d672f8cb82878baf3834e938c4c416f4493952cf.tar.gz mandoc-d672f8cb82878baf3834e938c4c416f4493952cf.tar.zst mandoc-d672f8cb82878baf3834e938c4c416f4493952cf.zip |
Several improvements to escape sequence handling.
* Add the missing special character \_ (underscore).
* Partial implementations of \a (leader character)
and \E (uninterpreted escape character).
* Parse and ignore \r (reverse line feed).
* Add a WARNING message about undefined escape sequences.
* Add an UNSUPP message about unsupported escape sequences.
* Mark \! and \? (transparent throughput)
and \O (suppress output) as unsupported.
* Treat the various variants of zero-width spaces as one-byte escape
sequences rather than as special characters, to avoid defining bogus
forms with square brackets.
* For special characters with one-byte names, do not define bogus
forms with square brackets, except for \[-], which is valid.
* In the form with square brackets, undefined special characters do not
fall back to printing the name verbatim, not even for one-byte names.
* Starting a special character name with a blank is an error.
* Undefined escape sequences never abort formatting of the input
string, not even in HTML output mode.
* Document the newly handled escapes, and a few that were missing.
* Regression tests for most of the above.
Diffstat (limited to 'regress/roff/esc/unsupp.in')
-rw-r--r-- | regress/roff/esc/unsupp.in | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/regress/roff/esc/unsupp.in b/regress/roff/esc/unsupp.in new file mode 100644 index 00000000..819f6c33 --- /dev/null +++ b/regress/roff/esc/unsupp.in @@ -0,0 +1,8 @@ +.\" $OpenBSD$ +.TH ESC-UNSUPP 1 "December 15, 2018" +.SH NAME +esc-unsupp \- unsupported escape sequences +.SH DESCRIPTION +.nf +exclamation mark: a\!b\[!]c +question mark: a\?\&\?b\[?]c |