-/* $Id: man.c,v 1.171 2017/05/01 23:27:39 schwarze Exp $ */
+/* $Id: man.c,v 1.180 2018/08/26 16:21:23 schwarze Exp $ */
/*
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2013,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org>
* Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
#include "roff_int.h"
#include "libman.h"
-static void man_descope(struct roff_man *, int, int);
+static char *man_hasc(char *);
static int man_ptext(struct roff_man *, int, char *, int);
static int man_pmacro(struct roff_man *, int, char *, int);
man_ptext(man, ln, buf, offs);
}
-static void
-man_descope(struct roff_man *man, int line, int offs)
+/*
+ * If the string ends with \c, return a pointer to the backslash.
+ * Otherwise, return NULL.
+ */
+static char *
+man_hasc(char *start)
{
+ char *cp, *ep;
+
+ ep = strchr(start, '\0') - 2;
+ if (ep < start || ep[0] != '\\' || ep[1] != 'c')
+ return NULL;
+ for (cp = ep; cp > start; cp--)
+ if (cp[-1] != '\\')
+ break;
+ return (ep - cp) % 2 ? NULL : ep;
+}
+
+void
+man_descope(struct roff_man *man, int line, int offs, char *start)
+{
+ /* Trailing \c keeps next-line scope open. */
+
+ if (start != NULL && man_hasc(start) != NULL)
+ return;
+
/*
* Co-ordinate what happens with having a next-line scope open:
- * first close out the element scope (if applicable), then close
- * out the block scope (also if applicable).
+ * first close out the element scopes (if applicable),
+ * then close out the block scope (also if applicable).
*/
if (man->flags & MAN_ELINE) {
+ while (man->last->parent->type != ROFFT_ROOT &&
+ man_macro(man->last->parent->tok)->flags & MAN_ESCOPED)
+ man_unscope(man, man->last->parent);
man->flags &= ~MAN_ELINE;
- man_unscope(man, man->last->parent);
}
if ( ! (man->flags & MAN_BLINE))
return;
man_ptext(struct roff_man *man, int line, char *buf, int offs)
{
int i;
+ char *ep;
/* Literal free-form text whitespace is preserved. */
if (man->flags & MAN_LITERAL) {
roff_word_alloc(man, line, offs, buf + offs);
- man_descope(man, line, offs);
+ man_descope(man, line, offs, buf + offs);
return 1;
}
/* Skip leading whitespace. */ ;
/*
- * Blank lines are ignored right after headings
+ * Blank lines are ignored in next line scope
+ * and right after headings and cancel preceding \c,
* but add a single vertical space elsewhere.
*/
if (buf[i] == '\0') {
- /* Allocate a blank entry. */
- if (man->last->tok != MAN_SH &&
- man->last->tok != MAN_SS) {
- roff_elem_alloc(man, line, offs, MAN_sp);
- man->next = ROFF_NEXT_SIBLING;
+ if (man->flags & (MAN_ELINE | MAN_BLINE)) {
+ mandoc_msg(MANDOCERR_BLK_BLANK, man->parse,
+ line, 0, NULL);
+ return 1;
}
+ if (man->last->tok == MAN_SH || man->last->tok == MAN_SS)
+ return 1;
+ if (man->last->type == ROFFT_TEXT &&
+ ((ep = man_hasc(man->last->string)) != NULL)) {
+ *ep = '\0';
+ return 1;
+ }
+ roff_elem_alloc(man, line, offs, ROFF_sp);
+ man->next = ROFF_NEXT_SIBLING;
return 1;
}
if (mandoc_eos(buf, (size_t)i))
man->last->flags |= NODE_EOS;
- man_descope(man, line, offs);
+ man_descope(man, line, offs, buf + offs);
return 1;
}
* page, that's very likely what the author intended.
*/
- if (bline) {
- cp = strchr(buf + offs, '\0') - 2;
- if (cp >= buf && cp[0] == '\\' && cp[1] == 'c')
- bline = 0;
- }
+ if (bline && man_hasc(buf + offs))
+ bline = 0;
/* Call to handler... */
- assert(man_macros[tok].fp);
- (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf);
+ (*man_macro(tok)->fp)(man, tok, ln, ppos, &offs, buf);
/* In quick mode (for mandocdb), abort after the NAME section. */
* unless the next-line scope is allowed to continue.
*/
- if ( ! bline || man->flags & MAN_ELINE ||
- man_macros[tok].flags & MAN_NSCOPED)
+ if (bline == 0 ||
+ (man->flags & MAN_BLINE) == 0 ||
+ man->flags & MAN_ELINE ||
+ man_macro(tok)->flags & MAN_NSCOPED)
return 1;
- assert(man->flags & MAN_BLINE);
man->flags &= ~MAN_BLINE;
-
man_unscope(man, man->last->parent);
roff_body_alloc(man, ln, ppos, man->last->tok);
return 1;
* Delete the element that is being broken.
*/
- if (man->flags & MAN_ELINE && (tok == TOKEN_NONE ||
- ! (man_macros[tok].flags & MAN_NSCOPED))) {
+ if (man->flags & MAN_ELINE && (tok < MAN_TH ||
+ (man_macro(tok)->flags & MAN_NSCOPED) == 0)) {
n = man->last;
- assert(n->type != ROFFT_TEXT);
- if (man_macros[n->tok].flags & MAN_NSCOPED)
+ if (n->type == ROFFT_TEXT)
+ n = n->parent;
+ if (n->tok < MAN_TH ||
+ (man_macro(n->tok)->flags & (MAN_NSCOPED | MAN_ESCOPED))
+ == MAN_NSCOPED)
n = n->parent;
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
n->line, n->pos, "%s breaks %s",
- tok == TOKEN_NONE ? "TS" : roff_name[tok],
- roff_name[n->tok]);
+ roff_name[tok], roff_name[n->tok]);
roff_node_delete(man, n);
man->flags &= ~MAN_ELINE;
* Delete the block that is being broken.
*/
- if (man->flags & MAN_BLINE && (tok == TOKEN_NONE ||
- man_macros[tok].flags & MAN_BSCOPE)) {
+ if (man->flags & MAN_BLINE && (tok < MAN_TH ||
+ man_macro(tok)->flags & MAN_XSCOPE)) {
n = man->last;
if (n->type == ROFFT_TEXT)
n = n->parent;
- if ( ! (man_macros[n->tok].flags & MAN_BSCOPE))
+ if (n->tok < MAN_TH ||
+ (man_macro(n->tok)->flags & MAN_XSCOPE) == 0)
n = n->parent;
assert(n->type == ROFFT_HEAD);
n = n->parent;
assert(n->type == ROFFT_BLOCK);
- assert(man_macros[n->tok].flags & MAN_SCOPED);
+ assert(man_macro(n->tok)->flags & MAN_BSCOPED);
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
n->line, n->pos, "%s breaks %s",
- tok == TOKEN_NONE ? "TS" : roff_name[tok],
- roff_name[n->tok]);
+ roff_name[tok], roff_name[n->tok]);
roff_node_delete(man, n);
man->flags &= ~MAN_BLINE;
}
}
-const struct mparse *
-man_mparse(const struct roff_man *man)
-{
-
- assert(man && man->parse);
- return man->parse;
-}
-
void
man_state(struct roff_man *man, struct roff_node *n)
{
git.ckatri.com / mandoc.git / blobdiff