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cex: don't assume the terminal supports "•"

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Use of print_unicode_char suggested by Bruno Haible.
https://lists.gnu.org/r/bug-gettext/2020-06/msg00012.html

* src/gram.h (print_dot_fallback, print_dot): New.
* src/gram.c, src/derivation.c: Use it.
* tests/counterexample.at, tests/report.at: Adjust the test suite.
* .travis.yml, README-hacking.md: Adjust.
This commit is contained in:
Akim Demaille
2020-06-14 09:13:39 +02:00
parent c35e829a76
commit e077bf1ebc
15 changed files with 245 additions and 179 deletions
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src/gram.c
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@@ -67,7 +67,8 @@ item_print (item_number *item, rule const *previous_rule, FILE *out)
for (item_number *sp = r->rhs; sp < item; sp++)
fprintf (out, " %s", symbols[*sp]->tag);
fputs (" .", out);
putc (' ', out);
print_dot (out);
if (0 <= *r->rhs)
for (item_number *sp = item; 0 <= *sp; ++sp)
fprintf (out, " %s", symbols[*sp]->tag);