Update of bug #63218 (project groff):
Status: In Progress => Fixed
Open/Closed: Open => Closed
Planned Release: None => 1.23.0
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Follow-up Comment #3:
commit bbde17473b43ece9441c5844d3e6da3fc8513f8a
Author: G. Branden Robinson <[email protected]>
Date: Sat Oct 15 11:34:34 2022 -0500
[eqn]: Improve unprintable character diagnostics.
[eqn]: Improve diagnostics involving unprintable characters.
* src/preproc/eqn/main.cpp (input_char_description): New function
constructs a human-readable string describing characters.
(read_line, inline_equation, main): Call new function and adjust
diagnostic message wording to accommodate the phrase it returns.
Fixes <https://savannah.gnu.org/bugs/?63218>.
groff 1.22.4:
$ echo | `printf 'eqn -dx\032\n'` >/dev/null
eqn: bad delimiter ''
$ printf '\001 x = x + 1\n' | `printf 'eqn -d\001\177\n'` > /dev/null
eqn:<standard input>:2: fatal error: unterminated '' at line 1, looking
for ''
$ printf '\001 x = x + 1\n' | `printf 'eqn -N -d\001\177\n'` > /dev/null
eqn:<standard input>:1: missing ''
groff now:
$ echo | `printf './build/eqn -dx\032\n'` >/dev/null
./build/eqn: error: invalid delimiter (character code 26) in '-d' option
argument
$ printf '\001 x = x + 1\n' | `printf './build/eqn -d\001\177\n'` >
/dev/null
./build/eqn:<standard input>:2: fatal error: unterminated inline equation;
started with a leader character, expecting a delete character
$ printf '\001 x = x + 1\n' | `printf './build/eqn -N -d\001\177\n'` >
/dev/null
./build/eqn:<standard input>:1: error: unterminated inline equation;
started with a leader character, expecting a delete character
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