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| author |   Ingo Schwarze <schwarze@openbsd.org> | 2014-10-29 00:17:43 +0000 |
|---|---|---|
| committer | Ingo Schwarze <schwarze@openbsd.org> | 2014-10-29 00:17:43 +0000 |
| commit | ada69bce757bdb8fff8d778e0660446c440c7613 (patch) | |
| tree | c855535ac67e0f62353307e69e90b8952d8ecad3 /html.c | |
| parent | 3e8d538cdcbed1408b260186b980e5fa4eeb81af (diff) | |
| download | mandoc-ada69bce757bdb8fff8d778e0660446c440c7613.tar.gz mandoc-ada69bce757bdb8fff8d778e0660446c440c7613.tar.zst mandoc-ada69bce757bdb8fff8d778e0660446c440c7613.zip | |
In terminal output, unify handling of Unicode and numbered character
escape sequences just like it was earlier implemented for -Thtml.
Do not let control characters other than ASCII 9 (horizontal tab)
propagate to the output, even though groff allows them; but that
really doesn't look like a great idea.
Let mchars_num2char() return int such that we can distinguish invalid \N
syntax from \N'0'. This also reduces the danger of signed char issues
popping up.
Diffstat (limited to 'html.c')
| -rw-r--r-- | html.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -1,4 +1,4 @@ -/* $Id: html.c,v 1.180 2014/10/28 17:36:19 schwarze Exp $ */ +/* $Id: html.c,v 1.181 2014/10/29 00:17:43 schwarze Exp $ */ /* * Copyright (c) 2008-2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2011, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org> @@ -422,9 +422,13 @@ print_encode(struct html *h, const char *p, int norecurse) break; case ESCAPE_NUMBERED: c = mchars_num2char(seq, len); + if (c < 0) + continue; break; case ESCAPE_SPECIAL: c = mchars_spec2cp(h->symtab, seq, len); + if (c <= 0) + continue; break; case ESCAPE_NOSPACE: if ('\0' == *p) @@ -433,9 +437,8 @@ print_encode(struct html *h, const char *p, int norecurse) default: continue; } - if (c <= 0) - continue; - if (c < 0x20 || (c > 0x7E && c < 0xA0)) + if ((c < 0x20 && c != 0x09) || + (c > 0x7E && c < 0xA0)) c = 0xFFFD; if (c > 0x7E) printf("&#%d;", c); |