-/* $Id: mdoc.c,v 1.89 2009/07/07 09:29:15 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.105 2009/09/16 14:40:56 kristaps Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
const char *const __mdoc_merrnames[MERRMAX] = {
"trailing whitespace", /* ETAILWS */
- "empty last list column", /* ECOLEMPTY */
- "argument-like parameter", /* EARGVPARM */
"unexpected quoted parameter", /* EQUOTPARM */
"unterminated quoted parameter", /* EQUOTTERM */
"system: malloc error", /* EMALLOC */
"argument parameter suggested", /* EARGVAL */
- "macro not callable", /* ENOCALL */
"macro disallowed in prologue", /* EBODYPROL */
"macro disallowed in body", /* EPROLBODY */
"text disallowed in prologue", /* ETEXTPROL */
"superfluous width argument", /* ENOWIDTH */
"system: utsname error", /* EUTSNAME */
"obsolete macro", /* EOBS */
- "macro-like parameter", /* EMACPARM */
"end-of-line scope violation", /* EIMPBRK */
"empty macro ignored", /* EIGNE */
"unclosed explicit scope", /* EOPEN */
"unterminated quoted phrase", /* EQUOTPHR */
"closure macro without prior context", /* ENOCTX */
- "invalid whitespace after control character", /* ESPACE */
+ "no description found for library" /* ELIB */
};
const char *const __mdoc_macronames[MDOC_MAX] = {
/* LINTED */
"Brc", "\%C", "Es", "En",
/* LINTED */
- "Dx", "\%Q"
+ "Dx", "\%Q", "br", "sp"
};
const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
static int parsetext(struct mdoc *, int, char *);
static int parsemacro(struct mdoc *, int, char *);
static int macrowarn(struct mdoc *, int, const char *);
+static int pstring(struct mdoc *, int, int,
+ const char *, size_t);
+
+#ifdef __linux__
+extern size_t strlcpy(char *, const char *, size_t);
+#endif
const struct mdoc_node *
{
mdoc_free1(mdoc);
- if (mdoc->htab)
- mdoc_hash_free(mdoc->htab);
free(mdoc);
}
if (cb)
(void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
+ mdoc_hash_init();
+
p->data = data;
p->pflags = pflags;
- if (NULL == (p->htab = mdoc_hash_alloc())) {
- free(p);
- return(NULL);
- } else if (mdoc_alloc1(p))
+ if (mdoc_alloc1(p))
return(p);
free(p);
mdoc_macro(struct mdoc *m, int tok,
int ln, int pp, int *pos, char *buf)
{
-
+ /*
+ * If we're in the prologue, deny "body" macros. Similarly, if
+ * we're in the body, deny prologue calls.
+ */
if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
MDOC_PBODY & m->flags)
return(mdoc_perr(m, ln, pp, EPROLBODY));
! (MDOC_PBODY & m->flags))
return(mdoc_perr(m, ln, pp, EBODYPROL));
- if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
- return(mdoc_perr(m, ln, pp, ENOCALL));
-
return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
}
static struct mdoc_node *
-node_alloc(struct mdoc *mdoc, int line,
+node_alloc(struct mdoc *m, int line,
int pos, int tok, enum mdoc_type type)
{
struct mdoc_node *p;
if (NULL == (p = calloc(1, sizeof(struct mdoc_node)))) {
- (void)mdoc_nerr(mdoc, mdoc->last, EMALLOC);
+ (void)mdoc_nerr(m, m->last, EMALLOC);
return(NULL);
}
- p->sec = mdoc->lastsec;
+ p->sec = m->lastsec;
p->line = line;
p->pos = pos;
p->tok = tok;
int
-mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+mdoc_tail_alloc(struct mdoc *m, int line, int pos, int tok)
{
struct mdoc_node *p;
- p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL);
+ p = node_alloc(m, line, pos, tok, MDOC_TAIL);
if (NULL == p)
return(0);
- return(node_append(mdoc, p));
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_CHILD;
+ return(1);
}
int
-mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+mdoc_head_alloc(struct mdoc *m, int line, int pos, int tok)
{
struct mdoc_node *p;
- assert(mdoc->first);
- assert(mdoc->last);
+ assert(m->first);
+ assert(m->last);
- p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD);
+ p = node_alloc(m, line, pos, tok, MDOC_HEAD);
if (NULL == p)
return(0);
- return(node_append(mdoc, p));
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_CHILD;
+ return(1);
}
int
-mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+mdoc_body_alloc(struct mdoc *m, int line, int pos, int tok)
{
struct mdoc_node *p;
- p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);
+ p = node_alloc(m, line, pos, tok, MDOC_BODY);
if (NULL == p)
return(0);
- return(node_append(mdoc, p));
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_CHILD;
+ return(1);
}
int
-mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
+mdoc_block_alloc(struct mdoc *m, int line, int pos,
int tok, struct mdoc_arg *args)
{
struct mdoc_node *p;
- p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK);
+ p = node_alloc(m, line, pos, tok, MDOC_BLOCK);
if (NULL == p)
return(0);
p->args = args;
if (p->args)
(args->refcnt)++;
- return(node_append(mdoc, p));
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_CHILD;
+ return(1);
}
int
-mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
+mdoc_elem_alloc(struct mdoc *m, int line, int pos,
int tok, struct mdoc_arg *args)
{
struct mdoc_node *p;
- p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM);
+ p = node_alloc(m, line, pos, tok, MDOC_ELEM);
if (NULL == p)
return(0);
p->args = args;
if (p->args)
(args->refcnt)++;
- return(node_append(mdoc, p));
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_CHILD;
+ return(1);
}
-int
-mdoc_word_alloc(struct mdoc *mdoc,
- int line, int pos, const char *word)
+static int
+pstring(struct mdoc *m, int line, int pos, const char *p, size_t len)
{
- struct mdoc_node *p;
+ struct mdoc_node *n;
+ size_t sv;
- p = node_alloc(mdoc, line, pos, -1, MDOC_TEXT);
- if (NULL == p)
- return(0);
- if (NULL == (p->string = strdup(word))) {
- (void)mdoc_nerr(mdoc, mdoc->last, EMALLOC);
- return(0);
+ n = node_alloc(m, line, pos, -1, MDOC_TEXT);
+ if (NULL == n)
+ return(mdoc_nerr(m, m->last, EMALLOC));
+
+ n->string = malloc(len + 1);
+ if (NULL == n->string) {
+ free(n);
+ return(mdoc_nerr(m, m->last, EMALLOC));
}
- return(node_append(mdoc, p));
+ sv = strlcpy(n->string, p, len + 1);
+
+ /* Prohibit truncation. */
+ assert(sv < len + 1);
+
+ if ( ! node_append(m, n))
+ return(0);
+ m->next = MDOC_NEXT_SIBLING;
+ return(1);
+}
+
+
+int
+mdoc_word_alloc(struct mdoc *m, int line, int pos, const char *p)
+{
+
+ return(pstring(m, line, pos, p, strlen(p)));
}
static int
parsetext(struct mdoc *m, int line, char *buf)
{
+ int i, j;
if (SEC_NONE == m->lastnamed)
return(mdoc_perr(m, line, 0, ETEXTPROL));
+
+ /*
+ * If in literal mode, then pass the buffer directly to the
+ * back-end, as it should be preserved as a single term.
+ */
+
+ if (MDOC_LITERAL & m->flags)
+ return(mdoc_word_alloc(m, line, 0, buf));
- if (0 == buf[0] && ! (MDOC_LITERAL & m->flags))
+ /* Disallow blank/white-space lines in non-literal mode. */
+
+ for (i = 0; ' ' == buf[i]; i++)
+ /* Skip leading whitespace. */ ;
+ if (0 == buf[i])
return(mdoc_perr(m, line, 0, ENOBLANK));
- if ( ! mdoc_word_alloc(m, line, 0, buf))
+ /*
+ * Break apart a free-form line into tokens. Spaces are
+ * stripped out of the input.
+ */
+
+ for (j = i; buf[i]; i++) {
+ if (' ' != buf[i])
+ continue;
+
+ /* Escaped whitespace. */
+ if (i && ' ' == buf[i] && '\\' == buf[i - 1])
+ continue;
+
+ buf[i++] = 0;
+ if ( ! pstring(m, line, j, &buf[j], (size_t)(i - j)))
+ return(0);
+
+ for ( ; ' ' == buf[i]; i++)
+ /* Skip trailing whitespace. */ ;
+
+ j = i;
+ if (0 == buf[i])
+ break;
+ }
+
+ if (j != i && ! pstring(m, line, j, &buf[j], (size_t)(i - j)))
return(0);
m->next = MDOC_NEXT_SIBLING;
}
+
+
static int
macrowarn(struct mdoc *m, int ln, const char *buf)
{
if ( ! (MDOC_IGN_MACRO & m->pflags))
- return(mdoc_verr(m, ln, 1,
+ return(mdoc_verr(m, ln, 0,
"unknown macro: %s%s",
buf, strlen(buf) > 3 ? "..." : ""));
- return(mdoc_vwarn(m, ln, 1, "unknown macro: %s%s",
+ return(mdoc_vwarn(m, ln, 0, "unknown macro: %s%s",
buf, strlen(buf) > 3 ? "..." : ""));
}
int
parsemacro(struct mdoc *m, int ln, char *buf)
{
- int i, c;
+ int i, j, c;
char mac[5];
/* Empty lines are ignored. */
if (0 == buf[1])
return(1);
- if (' ' == buf[1]) {
- i = 2;
+ i = 1;
+
+ /* Accept whitespace after the initial control char. */
+
+ if (' ' == buf[i]) {
+ i++;
while (buf[i] && ' ' == buf[i])
i++;
if (0 == buf[i])
return(1);
- return(mdoc_perr(m, ln, 1, ESPACE));
}
/* 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;
+
+ /* Check for invalid characters. */
+
+ if (isgraph((u_char)buf[i]))
+ continue;
+ return(mdoc_perr(m, ln, i, EPRINT));
}
- mac[i - 1] = 0;
+ mac[j] = 0;
- if (i == 5 || i <= 2) {
+ if (j == 4 || j < 2) {
if ( ! macrowarn(m, ln, mac))
goto err;
return(1);
}
- if (MDOC_MAX == (c = mdoc_hash_find(m->htab, mac))) {
+ if (MDOC_MAX == (c = mdoc_hash_find(mac))) {
if ( ! macrowarn(m, ln, mac))
goto err;
return(1);
while (buf[i] && ' ' == buf[i])
i++;
- /* Begin recursive parse sequence. */
-
+ /*
+ * Begin recursive parse sequence. Since we're at the start of
+ * the line, we don't need to do callable/parseable checks.
+ */
if ( ! mdoc_macro(m, c, ln, 1, &i, buf))
goto err;
m->flags |= MDOC_HALT;
return(0);
}
+
+
git.ckatri.com / mandoc.git / blobdiff