diff options
Diffstat (limited to 'man_validate.c')
| -rw-r--r-- | man_validate.c | 108 |
1 files changed, 103 insertions, 5 deletions
diff --git a/man_validate.c b/man_validate.c index 374793e4..0c2ed8a4 100644 --- a/man_validate.c +++ b/man_validate.c @@ -1,7 +1,7 @@ -/* $Id: man_validate.c,v 1.150 2020/01/19 16:44:50 schwarze Exp $ */ +/* $Id: man_validate.c,v 1.151 2020/03/13 15:32:28 schwarze Exp $ */ /* - * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> * Copyright (c) 2010, 2012-2020 Ingo Schwarze <schwarze@openbsd.org> + * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -14,6 +14,8 @@ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Validation module for man(7) syntax trees used by mandoc(1). */ #include "config.h" @@ -32,6 +34,7 @@ #include "mandoc_aux.h" #include "mandoc.h" #include "roff.h" +#include "tag.h" #include "man.h" #include "libmandoc.h" #include "roff_int.h" @@ -45,6 +48,7 @@ static void check_abort(CHKARGS) __attribute__((__noreturn__)); static void check_par(CHKARGS); static void check_part(CHKARGS); static void check_root(CHKARGS); +static void check_tag(struct roff_node *, struct roff_node *); static void check_text(CHKARGS); static void post_AT(CHKARGS); @@ -54,6 +58,7 @@ static void post_IP(CHKARGS); static void post_OP(CHKARGS); static void post_SH(CHKARGS); static void post_TH(CHKARGS); +static void post_TP(CHKARGS); static void post_UC(CHKARGS); static void post_UR(CHKARGS); static void post_in(CHKARGS); @@ -62,8 +67,8 @@ static const v_check man_valids[MAN_MAX - MAN_TH] = { post_TH, /* TH */ post_SH, /* SH */ post_SH, /* SS */ - NULL, /* TP */ - NULL, /* TQ */ + post_TP, /* TP */ + post_TP, /* TQ */ check_abort,/* LP */ check_par, /* PP */ check_abort,/* P */ @@ -201,6 +206,66 @@ check_abort(CHKARGS) abort(); } +/* + * Skip leading whitespace, dashes, backslashes, and font escapes, + * then create a tag if the first following byte is a letter. + * Priority is high unless whitespace is present. + */ +static void +check_tag(struct roff_node *n, struct roff_node *nt) +{ + const char *cp, *arg; + int prio, sz; + + if (nt == NULL || nt->type != ROFFT_TEXT) + return; + + cp = nt->string; + prio = TAG_STRONG; + for (;;) { + switch (*cp) { + case ' ': + case '\t': + prio = TAG_WEAK; + /* FALLTHROUGH */ + case '-': + cp++; + break; + case '\\': + cp++; + switch (mandoc_escape(&cp, &arg, &sz)) { + case ESCAPE_FONT: + case ESCAPE_FONTBOLD: + case ESCAPE_FONTITALIC: + case ESCAPE_FONTBI: + case ESCAPE_FONTROMAN: + case ESCAPE_FONTCW: + case ESCAPE_FONTPREV: + case ESCAPE_IGNORE: + break; + case ESCAPE_SPECIAL: + if (sz != 1) + return; + switch (*arg) { + case '-': + case 'e': + break; + default: + return; + } + break; + default: + return; + } + break; + default: + if (isalpha((unsigned char)*cp)) + tag_put(cp, prio, n); + return; + } + } +} + static void check_text(CHKARGS) { @@ -332,12 +397,14 @@ check_par(CHKARGS) static void post_IP(CHKARGS) { - switch (n->type) { case ROFFT_BLOCK: if (n->head->child == NULL && n->body->child == NULL) roff_node_delete(man, n); break; + case ROFFT_HEAD: + check_tag(n, n->child); + break; case ROFFT_BODY: if (n->parent->head->child == NULL && n->child == NULL) mandoc_msg(MANDOCERR_PAR_SKIP, n->line, n->pos, @@ -348,6 +415,37 @@ post_IP(CHKARGS) } } +/* + * The first next-line element in the head is the tag. + * If that's a font macro, use its first child instead. + */ +static void +post_TP(CHKARGS) +{ + struct roff_node *nt; + + if (n->type != ROFFT_HEAD || (nt = n->child) == NULL) + return; + + while ((nt->flags & NODE_LINE) == 0) + if ((nt = nt->next) == NULL) + return; + + switch (nt->tok) { + case MAN_B: + case MAN_BI: + case MAN_BR: + case MAN_I: + case MAN_IB: + case MAN_IR: + nt = nt->child; + break; + default: + break; + } + check_tag(n, nt); +} + static void post_TH(CHKARGS) { |