-/* $Id: man.c,v 1.3 2009/03/23 15:41:09 kristaps Exp $ */
+/* $Id: man.c,v 1.27 2009/07/07 09:35:40 kristaps Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
+ * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
* 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.
+ * 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 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
- * AUTHOR 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.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.
*/
#include <assert.h>
#include <ctype.h>
-#include <err.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include "libman.h"
+const char *const __man_merrnames[WERRMAX] = {
+ "invalid character", /* WNPRINT */
+ "system: malloc error", /* WNMEM */
+ "invalid manual section", /* WMSEC */
+ "invalid date format", /* WDATE */
+ "scope of prior line violated", /* WLNSCOPE */
+ "trailing whitespace", /* WTSPACE */
+ "unterminated quoted parameter", /* WTQUOTE */
+ "document has no body", /* WNODATA */
+ "document has no title/section", /* WNOTITLE */
+ "invalid escape sequence", /* WESCAPE */
+};
+
const char *const __man_macronames[MAN_MAX] = {
- "\\\"", "TH", "SH", "SS",
+ "br", "TH", "SH", "SS",
"TP", "LP", "PP", "P",
"IP", "HP", "SM", "SB",
"BI", "IB", "BR", "RB",
- "R", "B", "I", "IR"
+ "R", "B", "I", "IR",
+ "RI", "na", "i"
};
const char * const *man_macronames = __man_macronames;
-static struct man_node *man_node_alloc(int, int, enum man_type);
+static struct man_node *man_node_alloc(int, int,
+ enum man_type, int);
static int man_node_append(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 man_alloc1(struct man *);
const struct man_node *
}
-void
+int
man_reset(struct man *man)
{
man_free1(man);
- man_alloc1(man);
+ return(man_alloc1(man));
}
struct man *
-man_alloc(void)
+man_alloc(void *data, int pflags, const struct man_cb *cb)
{
struct man *p;
- p = calloc(1, sizeof(struct man));
- if (NULL == p)
- err(1, "calloc");
+ if (NULL == (p = calloc(1, sizeof(struct man))))
+ return(NULL);
+
+ if ( ! man_alloc1(p)) {
+ free(p);
+ return(NULL);
+ }
- man_alloc1(p);
+ p->data = data;
+ p->pflags = pflags;
+ (void)memcpy(&p->cb, cb, sizeof(struct man_cb));
- p->htab = man_hash_alloc();
+ if (NULL == (p->htab = man_hash_alloc())) {
+ free(p);
+ return(NULL);
+ }
return(p);
}
man_node_freelist(man->first);
if (man->meta.title)
free(man->meta.title);
- if (man->meta.os)
- free(man->meta.os);
+ if (man->meta.source)
+ free(man->meta.source);
if (man->meta.vol)
free(man->meta.vol);
}
-static void
+static int
man_alloc1(struct man *m)
{
m->flags = 0;
m->last = calloc(1, sizeof(struct man_node));
if (NULL == m->last)
- err(1, "calloc");
+ return(0);
m->first = m->last;
m->last->type = MAN_ROOT;
m->next = MAN_NEXT_CHILD;
+ return(1);
}
abort();
/* NOTREACHED */
}
-
-#if 0
- if ( ! man_valid_pre(man, p))
- return(0);
- if ( ! man_action_pre(man, p))
- return(0);
-#endif
+
+ p->parent->nchild++;
man->last = p;
switch (p->type) {
case (MAN_TEXT):
-#if 0
if ( ! man_valid_post(man))
return(0);
if ( ! man_action_post(man))
return(0);
-#endif
break;
default:
break;
static struct man_node *
-man_node_alloc(int line, int pos, enum man_type type)
+man_node_alloc(int line, int pos, enum man_type type, int tok)
{
struct man_node *p;
- if (NULL == (p = calloc(1, sizeof(struct man_node))))
- err(1, "malloc");
+ p = calloc(1, sizeof(struct man_node));
+ if (NULL == p)
+ return(NULL);
+
p->line = line;
p->pos = pos;
p->type = type;
-
+ p->tok = tok;
return(p);
}
{
struct man_node *p;
- p = man_node_alloc(line, pos, MAN_ELEM);
- p->tok = tok;
-
+ p = man_node_alloc(line, pos, MAN_ELEM, tok);
+ if (NULL == p)
+ return(0);
return(man_node_append(man, p));
}
{
struct man_node *p;
- p = man_node_alloc(line, pos, MAN_TEXT);
+ p = man_node_alloc(line, pos, MAN_TEXT, -1);
+ if (NULL == p)
+ return(0);
if (NULL == (p->string = strdup(word)))
- err(1, "strdup");
-
+ return(0);
return(man_node_append(man, p));
}
if (p->string)
free(p->string);
+ if (p->parent)
+ p->parent->nchild--;
free(p);
}
if (p->next)
man_node_freelist(p->next);
+ assert(0 == p->nchild);
man_node_free(p);
}
if ( ! man_word_alloc(m, line, 0, buf))
return(0);
m->next = MAN_NEXT_SIBLING;
+
+ /*
+ * If this is one of the zany NLINE macros that consumes the
+ * next line of input as being influenced, then close out the
+ * existing macro "scope" and continue processing.
+ */
+
+ if ( ! (MAN_NLINE & m->flags))
+ return(1);
+
+ m->flags &= ~MAN_NLINE;
+ m->last = m->last->parent;
+
+ assert(MAN_ROOT != m->last->type);
+ if ( ! man_valid_post(m))
+ return(0);
+ if ( ! man_action_post(m))
+ return(0);
+
return(1);
}
int
man_pmacro(struct man *m, int ln, char *buf)
{
- int i, c;
+ int i, j, c, ppos, fl;
char mac[5];
+ struct man_node *n;
/* Comments and empties are quickly ignored. */
+ n = m->last;
+ fl = MAN_NLINE & m->flags;
+
if (0 == buf[1])
- return(1);
+ goto out;
- if (' ' == buf[1]) {
- i = 2;
+ i = 1;
+
+ if (' ' == buf[i]) {
+ i++;
while (buf[i] && ' ' == buf[i])
i++;
if (0 == buf[i])
- return(1);
- warnx("invalid syntax");
- return(0);
+ goto out;
}
- if (buf[1] && '\\' == buf[1])
- if (buf[2] && '\"' == buf[2])
- return(1);
+ ppos = i;
/* Copy the first word into a nil-terminated buffer. */
- for (i = 1; i < 5; i++) {
- if (0 == (mac[i - 1] = buf[i]))
+ for (j = 0; j < 4; j++, i++) {
+ if (0 == (mac[j] = buf[i]))
break;
else if (' ' == buf[i])
break;
}
- mac[i - 1] = 0;
-
- if (i == 5 || i <= 1) {
- warnx("unknown macro: %s", mac);
- goto err;
- }
+ mac[j] = 0;
+
+ if (j == 4 || j < 1) {
+ if ( ! (MAN_IGN_MACRO & m->pflags)) {
+ (void)man_verr(m, ln, ppos,
+ "ill-formed macro: %s", mac);
+ goto err;
+ }
+ if ( ! man_vwarn(m, ln, ppos,
+ "ill-formed macro: %s", mac))
+ goto err;
+ return(1);
+ }
if (MAN_MAX == (c = man_hash_find(m->htab, mac))) {
- warnx("unknown macro: %s", mac);
- goto err;
+ if ( ! (MAN_IGN_MACRO & m->pflags)) {
+ (void)man_verr(m, ln, ppos,
+ "unknown macro: %s", mac);
+ goto err;
+ }
+ if ( ! man_vwarn(m, ln, ppos,
+ "unknown macro: %s", mac))
+ goto err;
+ return(1);
}
/* The macro is sane. Jump to the next word. */
/* Begin recursive parse sequence. */
- if ( ! man_macro(m, c, ln, 1, &i, buf))
+ if ( ! man_macro(m, c, ln, ppos, &i, buf))
goto err;
+out:
+ if (fl) {
+ /*
+ * A NLINE macro has been immediately followed with
+ * another. Close out the preceding macro's scope, and
+ * continue.
+ */
+ assert(MAN_ROOT != m->last->type);
+ assert(m->last->parent);
+ assert(MAN_ROOT != m->last->parent->type);
+
+ if (n != m->last)
+ m->last = m->last->parent;
+
+ if ( ! man_valid_post(m))
+ return(0);
+ if ( ! man_action_post(m))
+ return(0);
+ m->next = MAN_NEXT_SIBLING;
+ m->flags &= ~MAN_NLINE;
+ }
+
return(1);
err: /* Error out. */
return(0);
}
+
+int
+man_verr(struct man *man, int ln, int pos, const char *fmt, ...)
+{
+ char buf[256];
+ va_list ap;
+
+ if (NULL == man->cb.man_err)
+ return(0);
+
+ 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));
+}
+
+
+int
+man_vwarn(struct man *man, int ln, int pos, const char *fmt, ...)
+{
+ char buf[256];
+ va_list ap;
+
+ if (NULL == man->cb.man_warn)
+ return(0);
+
+ 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));
+}
+
+
+int
+man_err(struct man *m, int line, int pos, int iserr, enum merr type)
+{
+ 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));
+}
git.ckatri.com / mandoc.git / blobdiff