-/* $Id: man.c,v 1.55 2010/03/27 10:04:56 kristaps Exp $ */
+/* $Id: man.c,v 1.180 2018/08/26 16:21:23 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * 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
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* 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.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
-#include "libman.h"
+#include "mandoc_aux.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "man.h"
#include "libmandoc.h"
+#include "roff_int.h"
+#include "libman.h"
-const char *const __man_merrnames[WERRMAX] = {
- "invalid character", /* WNPRINT */
- "invalid manual section", /* WMSEC */
- "invalid date format", /* WDATE */
- "scope of prior line violated", /* WLNSCOPE */
- "over-zealous prior line scope violation", /* WLNSCOPE2 */
- "trailing whitespace", /* WTSPACE */
- "unterminated quoted parameter", /* WTQUOTE */
- "document has no body", /* WNODATA */
- "document has no title/section", /* WNOTITLE */
- "invalid escape sequence", /* WESCAPE */
- "invalid number format", /* WNUMFMT */
- "expected block head arguments", /* WHEADARGS */
- "expected block body arguments", /* WBODYARGS */
- "expected empty block head", /* WNHEADARGS */
- "ill-formed macro", /* WMACROFORM */
- "scope open on exit", /* WEXITSCOPE */
- "no scope context", /* WNOSCOPE */
- "literal context already open", /* WOLITERAL */
- "no literal context open", /* WNLITERAL */
- "invalid nesting of roff declarations", /* WROFFNEST */
- "scope in roff instructions broken", /* WROFFSCOPE */
- "document title should be uppercase", /* WTITLECASE */
-};
-
-const char *const __man_macronames[MAN_MAX] = {
- "br", "TH", "SH", "SS",
- "TP", "LP", "PP", "P",
- "IP", "HP", "SM", "SB",
- "BI", "IB", "BR", "RB",
- "R", "B", "I", "IR",
- "RI", "na", "i", "sp",
- "nf", "fi", "r", "RE",
- "RS", "DT", "UC", "PD",
- "Sp", "Vb", "Ve", "de",
- "dei", "am", "ami", "ig",
- ".",
- };
-
-const char * const *man_macronames = __man_macronames;
-
-static struct man_node *man_node_alloc(int, int,
- enum man_type, enum mant);
-static int man_node_append(struct man *,
- struct man_node *);
-static void man_node_free(struct man_node *);
-static void man_node_unlink(struct man *,
- struct man_node *);
-static int man_ptext(struct man *, int, char *);
-static int man_pmacro(struct man *, int, char *);
-static void man_free1(struct man *);
-static void man_alloc1(struct man *);
-static int pstring(struct man *, int, int,
- const char *, size_t);
-static int macrowarn(struct man *, int, const char *);
-
-
-const struct man_node *
-man_node(const struct man *m)
-{
-
- return(MAN_HALT & m->flags ? NULL : m->first);
-}
-
-
-const struct man_meta *
-man_meta(const struct man *m)
-{
-
- return(MAN_HALT & m->flags ? NULL : &m->meta);
-}
-
-
-void
-man_reset(struct man *man)
-{
-
- man_free1(man);
- man_alloc1(man);
-}
-
-
-void
-man_free(struct man *man)
-{
-
- man_free1(man);
- free(man);
-}
-
-
-struct man *
-man_alloc(void *data, int pflags, const struct man_cb *cb)
-{
- struct man *p;
-
- p = mandoc_calloc(1, sizeof(struct man));
-
- if (cb)
- memcpy(&p->cb, cb, sizeof(struct man_cb));
-
- man_hash_init();
- p->data = data;
- p->pflags = pflags;
-
- man_alloc1(p);
- return(p);
-}
-
-
-int
-man_endparse(struct man *m)
-{
-
- if (MAN_HALT & m->flags)
- return(0);
- else if (man_macroend(m))
- return(1);
- m->flags |= MAN_HALT;
- return(0);
-}
-
-
-int
-man_parseln(struct man *m, int ln, char *buf)
-{
-
- return('.' == *buf || '\'' == *buf ?
- man_pmacro(m, ln, buf) :
- man_ptext(m, ln, buf));
-}
-
-
-static void
-man_free1(struct man *man)
-{
-
- if (man->first)
- man_node_delete(man, man->first);
- if (man->meta.title)
- free(man->meta.title);
- if (man->meta.source)
- free(man->meta.source);
- if (man->meta.vol)
- free(man->meta.vol);
-}
-
-
-static void
-man_alloc1(struct man *m)
-{
-
- memset(&m->meta, 0, sizeof(struct man_meta));
- m->flags = 0;
- m->last = mandoc_calloc(1, sizeof(struct man_node));
- m->first = m->last;
- m->last->type = MAN_ROOT;
- m->last->tok = MAN_MAX;
- m->next = MAN_NEXT_CHILD;
-}
-
-
-static int
-man_node_append(struct man *man, struct man_node *p)
-{
-
- assert(man->last);
- assert(man->first);
- assert(MAN_ROOT != p->type);
-
- switch (man->next) {
- case (MAN_NEXT_SIBLING):
- man->last->next = p;
- p->prev = man->last;
- p->parent = man->last->parent;
- break;
- case (MAN_NEXT_CHILD):
- man->last->child = p;
- p->parent = man->last;
- break;
- default:
- abort();
- /* NOTREACHED */
- }
-
- assert(p->parent);
- p->parent->nchild++;
-
- if ( ! man_valid_pre(man, p))
- return(0);
-
- switch (p->type) {
- case (MAN_HEAD):
- assert(MAN_BLOCK == p->parent->type);
- p->parent->head = p;
- break;
- case (MAN_BODY):
- assert(MAN_BLOCK == p->parent->type);
- p->parent->body = p;
- break;
- default:
- break;
- }
-
- man->last = p;
-
- switch (p->type) {
- case (MAN_TEXT):
- if ( ! man_valid_post(man))
- return(0);
- if ( ! man_action_post(man))
- return(0);
- break;
- default:
- break;
- }
-
- return(1);
-}
-
-
-static struct man_node *
-man_node_alloc(int line, int pos, enum man_type type, enum mant tok)
-{
- struct man_node *p;
-
- p = mandoc_calloc(1, sizeof(struct man_node));
- p->line = line;
- p->pos = pos;
- p->type = type;
- p->tok = tok;
- return(p);
-}
-
-
-int
-man_elem_alloc(struct man *m, int line, int pos, enum mant tok)
-{
- struct man_node *p;
-
- p = man_node_alloc(line, pos, MAN_ELEM, tok);
- if ( ! man_node_append(m, p))
- return(0);
- m->next = MAN_NEXT_CHILD;
- return(1);
-}
-
-
-int
-man_head_alloc(struct man *m, int line, int pos, enum mant tok)
-{
- struct man_node *p;
-
- p = man_node_alloc(line, pos, MAN_HEAD, tok);
- if ( ! man_node_append(m, p))
- return(0);
- m->next = MAN_NEXT_CHILD;
- return(1);
-}
-
-
-int
-man_body_alloc(struct man *m, int line, int pos, enum mant tok)
-{
- struct man_node *p;
-
- p = man_node_alloc(line, pos, MAN_BODY, tok);
- if ( ! man_node_append(m, p))
- return(0);
- m->next = MAN_NEXT_CHILD;
- return(1);
-}
+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);
int
-man_block_alloc(struct man *m, int line, int pos, enum mant tok)
+man_parseln(struct roff_man *man, int ln, char *buf, int offs)
{
- struct man_node *p;
-
- p = man_node_alloc(line, pos, MAN_BLOCK, tok);
- if ( ! man_node_append(m, p))
- return(0);
- m->next = MAN_NEXT_CHILD;
- return(1);
-}
-
-
-static int
-pstring(struct man *m, int line, int pos,
- const char *p, size_t len)
-{
- struct man_node *n;
- size_t sv;
-
- n = man_node_alloc(line, pos, MAN_TEXT, MAN_MAX);
- n->string = mandoc_malloc(len + 1);
- sv = strlcpy(n->string, p, len + 1);
-
- /* Prohibit truncation. */
- assert(sv < len + 1);
-
- if ( ! man_node_append(m, n))
- return(0);
- m->next = MAN_NEXT_SIBLING;
- return(1);
-}
+ if (man->last->type != ROFFT_EQN || ln > man->last->line)
+ man->flags |= MAN_NEWLINE;
-int
-man_word_alloc(struct man *m, int line, int pos, const char *word)
-{
-
- return(pstring(m, line, pos, word, strlen(word)));
+ return roff_getcontrol(man->roff, buf, &offs) ?
+ man_pmacro(man, ln, buf, offs) :
+ man_ptext(man, ln, buf, offs);
}
-
/*
- * Free all of the resources held by a node. This does NOT unlink a
- * node from its context; for that, see man_node_unlink().
+ * If the string ends with \c, return a pointer to the backslash.
+ * Otherwise, return NULL.
*/
-static void
-man_node_free(struct man_node *p)
+static char *
+man_hasc(char *start)
{
+ char *cp, *ep;
- if (p->string)
- free(p->string);
- free(p);
+ 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_node_delete(struct man *m, struct man_node *p)
+man_descope(struct roff_man *man, int line, int offs, char *start)
{
+ /* Trailing \c keeps next-line scope open. */
- while (p->child)
- man_node_delete(m, p->child);
+ if (start != NULL && man_hasc(start) != NULL)
+ return;
- man_node_unlink(m, p);
- man_node_free(p);
-}
+ /*
+ * Co-ordinate what happens with having a next-line scope open:
+ * 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;
+ }
+ if ( ! (man->flags & MAN_BLINE))
+ return;
+ man->flags &= ~MAN_BLINE;
+ man_unscope(man, man->last->parent);
+ roff_body_alloc(man, line, offs, man->last->tok);
+}
static int
-man_ptext(struct man *m, int line, char *buf)
+man_ptext(struct roff_man *man, int line, char *buf, int offs)
{
- int i, j;
- char sv;
+ int i;
+ char *ep;
/* Literal free-form text whitespace is preserved. */
- if (MAN_LITERAL & m->flags) {
- if ( ! man_word_alloc(m, line, 0, buf))
- return(0);
- goto descope;
+ if (man->flags & MAN_LITERAL) {
+ roff_word_alloc(man, line, offs, buf + offs);
+ man_descope(man, line, offs, buf + offs);
+ return 1;
}
- /* First de-chunk and allocate words. */
-
- for (i = 0; ' ' == buf[i]; i++)
+ for (i = offs; buf[i] == ' '; i++)
/* Skip leading whitespace. */ ;
- if ('\0' == buf[i]) {
- /* Trailing whitespace? */
- if (i && ' ' == buf[i - 1])
- if ( ! man_pwarn(m, line, i - 1, WTSPACE))
- return(0);
- if ( ! pstring(m, line, 0, &buf[i], 0))
- return(0);
- goto descope;
- }
-
- for (j = i; buf[i]; i++) {
- if (' ' != buf[i])
- continue;
-
- /* Escaped whitespace. */
- if (i && ' ' == buf[i] && '\\' == buf[i - 1])
- continue;
-
- sv = buf[i];
- buf[i++] = '\0';
-
- if ( ! pstring(m, line, j, &buf[j], (size_t)(i - j)))
- return(0);
+ /*
+ * Blank lines are ignored in next line scope
+ * and right after headings and cancel preceding \c,
+ * but add a single vertical space elsewhere.
+ */
- /* Trailing whitespace? Check at overwritten byte. */
+ if (buf[i] == '\0') {
+ 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 (' ' == sv && '\0' == buf[i])
- if ( ! man_pwarn(m, line, i - 1, WTSPACE))
- return(0);
+ /*
+ * Warn if the last un-escaped character is whitespace. Then
+ * strip away the remaining spaces (tabs stay!).
+ */
- for ( ; ' ' == buf[i]; i++)
- /* Skip trailing whitespace. */ ;
+ i = (int)strlen(buf);
+ assert(i);
- j = i;
+ if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
+ if (i > 1 && '\\' != buf[i - 2])
+ mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
+ line, i - 1, NULL);
- /* Trailing whitespace? */
+ for (--i; i && ' ' == buf[i]; i--)
+ /* Spin back to non-space. */ ;
- if (' ' == buf[i - 1] && '\0' == buf[i])
- if ( ! man_pwarn(m, line, i - 1, WTSPACE))
- return(0);
+ /* Jump ahead of escaped whitespace. */
+ i += '\\' == buf[i] ? 2 : 1;
- if ('\0' == buf[i])
- break;
+ buf[i] = '\0';
}
-
- if (j != i && ! pstring(m, line, j, &buf[j], (size_t)(i - j)))
- return(0);
-
-descope:
+ roff_word_alloc(man, line, offs, buf + offs);
/*
- * 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).
+ * End-of-sentence check. If the last character is an unescaped
+ * EOS character, then flag the node as being the end of a
+ * sentence. The front-end will know how to interpret this.
*/
- if (MAN_ELINE & m->flags) {
- m->flags &= ~MAN_ELINE;
- if ( ! man_unscope(m, m->last->parent, WERRMAX))
- return(0);
- }
-
- if ( ! (MAN_BLINE & m->flags))
- return(1);
- m->flags &= ~MAN_BLINE;
+ assert(i);
+ if (mandoc_eos(buf, (size_t)i))
+ man->last->flags |= NODE_EOS;
- if ( ! man_unscope(m, m->last->parent, WERRMAX))
- return(0);
- return(man_body_alloc(m, line, 0, m->last->tok));
+ man_descope(man, line, offs, buf + offs);
+ return 1;
}
-
static int
-macrowarn(struct man *m, int ln, const char *buf)
+man_pmacro(struct roff_man *man, int ln, char *buf, int offs)
{
- if ( ! (MAN_IGN_MACRO & m->pflags))
- return(man_verr(m, ln, 0,
- "unknown macro: %s%s",
- buf, strlen(buf) > 3 ? "..." : ""));
- return(man_vwarn(m, ln, 0, "unknown macro: %s%s",
- buf, strlen(buf) > 3 ? "..." : ""));
-}
-
-
-int
-man_pmacro(struct man *m, int ln, char *buf)
-{
- int i, j, ppos, fl;
- enum mant tok;
- char mac[5];
- struct man_node *n;
-
- /* Comments and empties are quickly ignored. */
-
- fl = m->flags;
-
- if ('\0' == buf[1])
- return(1);
-
- i = 1;
-
- if (' ' == buf[i]) {
- i++;
- while (buf[i] && ' ' == buf[i])
- i++;
- if ('\0' == buf[i])
- goto out;
+ struct roff_node *n;
+ const char *cp;
+ size_t sz;
+ enum roff_tok tok;
+ int ppos;
+ int bline;
+
+ /* Determine the line macro. */
+
+ ppos = offs;
+ tok = TOKEN_NONE;
+ for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
+ offs++;
+ if (sz > 0 && sz < 4)
+ tok = roffhash_find(man->manmac, buf + ppos, sz);
+ if (tok == TOKEN_NONE) {
+ mandoc_msg(MANDOCERR_MACRO, man->parse,
+ ln, ppos, buf + ppos - 1);
+ return 1;
}
- ppos = i;
-
- /* Copy the first word into a nil-terminated buffer. */
-
- for (j = 0; j < 4; j++, i++) {
- if ('\0' == (mac[j] = buf[i]))
- break;
- else if (' ' == buf[i])
- break;
+ /* Skip a leading escape sequence or tab. */
- /* Check for invalid characters. */
-
- if (isgraph((u_char)buf[i]))
- continue;
- return(man_perr(m, ln, i, WNPRINT));
- }
-
- mac[j] = '\0';
-
- if (j == 4 || j < 1) {
- if ( ! (MAN_IGN_MACRO & m->pflags)) {
- (void)man_perr(m, ln, ppos, WMACROFORM);
- goto err;
- }
- if ( ! man_pwarn(m, ln, ppos, WMACROFORM))
- goto err;
- return(1);
- }
-
- if (MAN_MAX == (tok = man_hash_find(mac))) {
- if ( ! macrowarn(m, ln, mac))
- goto err;
- return(1);
+ switch (buf[offs]) {
+ case '\\':
+ cp = buf + offs + 1;
+ mandoc_escape(&cp, NULL, NULL);
+ offs = cp - buf;
+ break;
+ case '\t':
+ offs++;
+ break;
+ default:
+ break;
}
- /* The macro is sane. Jump to the next word. */
-
- while (buf[i] && ' ' == buf[i])
- i++;
+ /* Jump to the next non-whitespace word. */
- /* Trailing whitespace? */
+ while (buf[offs] == ' ')
+ offs++;
- if ('\0' == buf[i] && ' ' == buf[i - 1])
- if ( ! man_pwarn(m, ln, i - 1, WTSPACE))
- goto err;
-
- /*
- * Remove prior ELINE macro, as it's being clobbering by a new
- * macro. Note that NSCOPED macros do not close out ELINE
- * macros---they don't print text---so we let those slip by.
+ /*
+ * Trailing whitespace. Note that tabs are allowed to be passed
+ * into the parser as "text", so we only warn about spaces here.
*/
- if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
- m->flags & MAN_ELINE) {
- assert(MAN_TEXT != m->last->type);
-
- /*
- * This occurs in the following construction:
- * .B
- * .br
- * .B
- * .br
- * I hate man macros.
- * Flat-out disallow this madness.
- */
- if (MAN_NSCOPED & man_macros[m->last->tok].flags)
- return(man_perr(m, ln, ppos, WLNSCOPE));
-
- n = m->last;
-
- assert(n);
- assert(NULL == n->child);
- assert(0 == n->nchild);
-
- if ( ! man_nwarn(m, n, WLNSCOPE))
- return(0);
-
- man_node_delete(m, n);
- m->flags &= ~MAN_ELINE;
- }
-
- /* Begin recursive parse sequence. */
-
- assert(man_macros[tok].fp);
+ if (buf[offs] == '\0' && buf[offs - 1] == ' ')
+ mandoc_msg(MANDOCERR_SPACE_EOL, man->parse,
+ ln, offs - 1, NULL);
- if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf))
- goto err;
-
-out:
- /*
- * We weren't in a block-line scope when entering the
- * above-parsed macro, so return.
- *
- * FIXME: this prohibits the nesting of blocks (e.g., `de' and
- * family) within BLINE or ELINE systems. This is annoying.
+ /*
+ * Some macros break next-line scopes; otherwise, remember
+ * whether we are in next-line scope for a block head.
*/
- if ( ! (MAN_BLINE & fl)) {
- m->flags &= ~MAN_ILINE;
- return(1);
- }
+ man_breakscope(man, tok);
+ bline = man->flags & MAN_BLINE;
/*
- * If we're in a block scope, then allow this macro to slip by
- * without closing scope around it.
+ * If the line in next-line scope ends with \c, keep the
+ * next-line scope open for the subsequent input line.
+ * That is not at all portable, only groff >= 1.22.4
+ * does it, but *if* this weird idiom occurs in a manual
+ * page, that's very likely what the author intended.
*/
- if (MAN_ILINE & m->flags) {
- m->flags &= ~MAN_ILINE;
- return(1);
- }
+ if (bline && man_hasc(buf + offs))
+ bline = 0;
- /*
- * If we've opened a new next-line element scope, then return
- * now, as the next line will close out the block scope.
- */
+ /* Call to handler... */
- if (MAN_ELINE & m->flags)
- return(1);
+ (*man_macro(tok)->fp)(man, tok, ln, ppos, &offs, buf);
- /* Close out the block scope opened in the prior line. */
+ /* In quick mode (for mandocdb), abort after the NAME section. */
- assert(MAN_BLINE & m->flags);
- m->flags &= ~MAN_BLINE;
+ if (man->quick && tok == MAN_SH) {
+ n = man->last;
+ if (n->type == ROFFT_BODY &&
+ strcmp(n->prev->child->string, "NAME"))
+ return 2;
+ }
- if ( ! man_unscope(m, m->last->parent, WERRMAX))
- return(0);
- return(man_body_alloc(m, ln, 0, m->last->tok));
+ /*
+ * If we are in a next-line scope for a block head,
+ * close it out now and switch to the body,
+ * unless the next-line scope is allowed to continue.
+ */
-err: /* Error out. */
+ if (bline == 0 ||
+ (man->flags & MAN_BLINE) == 0 ||
+ man->flags & MAN_ELINE ||
+ man_macro(tok)->flags & MAN_NSCOPED)
+ return 1;
- m->flags |= MAN_HALT;
- return(0);
+ man->flags &= ~MAN_BLINE;
+ man_unscope(man, man->last->parent);
+ roff_body_alloc(man, ln, ppos, man->last->tok);
+ return 1;
}
-
-int
-man_verr(struct man *man, int ln, int pos, const char *fmt, ...)
+void
+man_breakscope(struct roff_man *man, int tok)
{
- char buf[256];
- va_list ap;
+ struct roff_node *n;
- if (NULL == man->cb.man_err)
- return(0);
+ /*
+ * An element next line scope is open,
+ * and the new macro is not allowed inside elements.
+ * Delete the element that is being broken.
+ */
- va_start(ap, fmt);
- (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
- va_end(ap);
- return((*man->cb.man_err)(man->data, ln, pos, buf));
-}
+ if (man->flags & MAN_ELINE && (tok < MAN_TH ||
+ (man_macro(tok)->flags & MAN_NSCOPED) == 0)) {
+ n = man->last;
+ 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",
+ roff_name[tok], roff_name[n->tok]);
+
+ roff_node_delete(man, n);
+ man->flags &= ~MAN_ELINE;
+ }
+ /*
+ * Weird special case:
+ * Switching fill mode closes section headers.
+ */
-int
-man_vwarn(struct man *man, int ln, int pos, const char *fmt, ...)
-{
- char buf[256];
- va_list ap;
+ if (man->flags & MAN_BLINE &&
+ (tok == MAN_nf || tok == MAN_fi) &&
+ (man->last->tok == MAN_SH || man->last->tok == MAN_SS)) {
+ n = man->last;
+ man_unscope(man, n);
+ roff_body_alloc(man, n->line, n->pos, n->tok);
+ man->flags &= ~MAN_BLINE;
+ }
- if (NULL == man->cb.man_warn)
- return(0);
+ /*
+ * A block header next line scope is open,
+ * and the new macro is not allowed inside block headers.
+ * Delete the block that is being broken.
+ */
- va_start(ap, fmt);
- (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
- va_end(ap);
- return((*man->cb.man_warn)(man->data, ln, pos, buf));
+ 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 (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_macro(n->tok)->flags & MAN_BSCOPED);
+
+ mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse,
+ n->line, n->pos, "%s breaks %s",
+ roff_name[tok], roff_name[n->tok]);
+
+ roff_node_delete(man, n);
+ man->flags &= ~MAN_BLINE;
+ }
}
-
-int
-man_err(struct man *m, int line, int pos, int iserr, enum merr type)
+void
+man_state(struct roff_man *man, struct roff_node *n)
{
- const char *p;
-
- p = __man_merrnames[(int)type];
- assert(p);
-
- if (iserr)
- return(man_verr(m, line, pos, p));
- return(man_vwarn(m, line, pos, p));
+ switch(n->tok) {
+ case MAN_nf:
+ case MAN_EX:
+ if (man->flags & MAN_LITERAL && ! (n->flags & NODE_VALID))
+ mandoc_msg(MANDOCERR_NF_SKIP, man->parse,
+ n->line, n->pos, "nf");
+ man->flags |= MAN_LITERAL;
+ break;
+ case MAN_fi:
+ case MAN_EE:
+ if ( ! (man->flags & MAN_LITERAL) &&
+ ! (n->flags & NODE_VALID))
+ mandoc_msg(MANDOCERR_FI_SKIP, man->parse,
+ n->line, n->pos, "fi");
+ man->flags &= ~MAN_LITERAL;
+ break;
+ default:
+ break;
+ }
+ man->last->flags |= NODE_VALID;
}
-
-/*
- * Unlink a node from its context. If "m" is provided, the last parse
- * point will also be adjusted accordingly.
- */
-static void
-man_node_unlink(struct man *m, struct man_node *n)
+void
+man_validate(struct roff_man *man)
{
- /* Adjust siblings. */
-
- if (n->prev)
- n->prev->next = n->next;
- if (n->next)
- n->next->prev = n->prev;
-
- /* Adjust parent. */
-
- if (n->parent) {
- n->parent->nchild--;
- if (n->parent->child == n)
- n->parent->child = n->prev ? n->prev : n->next;
- }
-
- /* Adjust parse point, if applicable. */
-
- if (m && m->last == n) {
- /*XXX: this can occur when bailing from validation. */
- /*assert(NULL == n->next);*/
- if (n->prev) {
- m->last = n->prev;
- m->next = MAN_NEXT_SIBLING;
- } else {
- m->last = n->parent;
- m->next = MAN_NEXT_CHILD;
- }
- }
-
- if (m && m->first == n)
- m->first = NULL;
+ man->last = man->first;
+ man_node_validate(man);
+ man->flags &= ~MAN_LITERAL;
}
git.ckatri.com / mandoc.git / blobdiff