summaryrefslogtreecommitdiffstats
path: root/regress/char/space/invalid.out_lint
Commit message (Collapse)AuthorAgeFilesLines
* Split the excessively generic diagnostic message "invalid escape sequence"Ingo Schwarze2022-06-071-1/+1
| | | | | into the more specific messages "invalid escape argument delimiter" and "invalid escape sequence argument".
* With the improved escape sequence parser, it becomes easy to also improveIngo Schwarze2022-06-051-8/+8
| | | | | | | | | diagnostics. Distinguish "incomplete escape sequence", "invalid special character", and "unknown special character" from the generic "invalid escape sequence", also promoting them from WARNING to ERROR because incomplete escape sequences are severe syntax violations and because encountering an invalid or unknown special character makes it likely that part of the document content intended by the authors gets lost.
* Several improvements to escape sequence handling.Ingo Schwarze2018-12-151-0/+9
* 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.