-/* $Id: mdoc.c,v 1.143 2010/05/31 15:50:48 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.163 2010/08/20 01:02:07 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010 Ingo Schwarze <schwarze@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
#include <sys/types.h>
#include <assert.h>
-#include <ctype.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
struct mdoc_node *);
static int mdoc_ptext(struct mdoc *, int, char *, int);
static int mdoc_pmacro(struct mdoc *, int, char *, int);
-static int macrowarn(struct mdoc *, int,
- const char *, int);
const struct mdoc_node *
* Allocate volatile and non-volatile parse resources.
*/
struct mdoc *
-mdoc_alloc(void *data, int pflags, mandocmsg msg)
+mdoc_alloc(struct regset *regs, void *data, mandocmsg msg)
{
struct mdoc *p;
p->msg = msg;
p->data = data;
- p->pflags = pflags;
+ p->regs = regs;
mdoc_hash_init();
mdoc_alloc1(p);
return(0);
m->flags |= MDOC_NEWLINE;
+
+ /*
+ * Let the roff nS register switch SYNOPSIS mode early,
+ * such that the parser knows at all times
+ * whether this mode is on or off.
+ * Note that this mode is also switched by the Sh macro.
+ */
+ if (m->regs->regs[(int)REG_nS].set) {
+ if (m->regs->regs[(int)REG_nS].v.u)
+ m->flags |= MDOC_SYNOPSIS;
+ else
+ m->flags &= ~MDOC_SYNOPSIS;
+ }
+
return(('.' == buf[offs] || '\'' == buf[offs]) ?
mdoc_pmacro(m, ln, buf, offs) :
mdoc_ptext(m, ln, buf, offs));
int
-mdoc_macro(struct mdoc *m, enum mdoct tok,
- int ln, int pp, int *pos, char *buf)
+mdoc_macro(MACRO_PROT_ARGS)
{
assert(tok < MDOC_MAX);
if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
MDOC_PBODY & m->flags)
- return(mdoc_pmsg(m, ln, pp, MANDOCERR_BADBODY));
+ return(mdoc_pmsg(m, line, ppos, MANDOCERR_BADBODY));
/* If we're in the prologue, deny "body" macros. */
if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
! (MDOC_PBODY & m->flags)) {
- if ( ! mdoc_pmsg(m, ln, pp, MANDOCERR_BADPROLOG))
+ if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_BADPROLOG))
return(0);
if (NULL == m->meta.title)
m->meta.title = mandoc_strdup("UNKNOWN");
m->flags |= MDOC_PBODY;
}
- return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
+ return((*mdoc_macros[tok].fp)(m, tok, line, ppos, pos, buf));
}
p->parent->tail = p;
break;
case (MDOC_BODY):
+ if (p->end)
+ break;
assert(MDOC_BLOCK == p->parent->type);
p->parent->body = p;
break;
p->pos = pos;
p->tok = tok;
p->type = type;
+
+ /* Flag analysis. */
+
+ if (MDOC_SYNOPSIS & m->flags)
+ p->flags |= MDOC_SYNPRETTY;
+ else
+ p->flags &= ~MDOC_SYNPRETTY;
if (MDOC_NEWLINE & m->flags)
p->flags |= MDOC_LINE;
m->flags &= ~MDOC_NEWLINE;
+
return(p);
}
}
+int
+mdoc_endbody_alloc(struct mdoc *m, int line, int pos, enum mdoct tok,
+ struct mdoc_node *body, enum mdoc_endbody end)
+{
+ struct mdoc_node *p;
+
+ p = node_alloc(m, line, pos, tok, MDOC_BODY);
+ p->pending = body;
+ p->end = end;
+ if ( ! node_append(m, p))
+ return(0);
+ m->next = MDOC_NEXT_SIBLING;
+ return(1);
+}
+
+
int
mdoc_block_alloc(struct mdoc *m, int line, int pos,
enum mdoct tok, struct mdoc_arg *args)
}
-void
+static void
mdoc_node_free(struct mdoc_node *p)
{
+ /*
+ * XXX: if these end up being problematic in terms of memory
+ * management and dereferencing freed blocks, then make them
+ * into reference-counted double-pointers.
+ */
+
+ if (MDOC_Bd == p->tok && MDOC_BLOCK == p->type)
+ if (p->data.Bd)
+ free(p->data.Bd);
+ if (MDOC_Bl == p->tok && MDOC_BLOCK == p->type)
+ if (p->data.Bl)
+ free(p->data.Bl);
+ if (MDOC_Bf == p->tok && MDOC_HEAD == p->type)
+ if (p->data.Bf)
+ free(p->data.Bf);
+
if (p->string)
free(p->string);
if (p->args)
n = m->last;
/*
- * Diver directly into list processing if we're encountering a
+ * Divert directly to list processing if we're encountering a
* columnar MDOC_BLOCK with or without a prior MDOC_BLOCK entry
- * (if it's a MDOC_BODY that means it's open, in which case we
- * should process within its context).
+ * (a MDOC_BODY means it's already open, in which case we should
+ * process within its context in the normal way).
*/
if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
- LIST_column == n->data.list) {
+ LIST_column == n->data.Bl->type) {
+ /* `Bl' is open without any children. */
m->flags |= MDOC_FREECOL;
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
}
if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
NULL != n->parent &&
MDOC_Bl == n->parent->tok &&
- LIST_column == n->parent->data.list) {
+ LIST_column == n->parent->data.Bl->type) {
+ /* `Bl' has block-level `It' children. */
m->flags |= MDOC_FREECOL;
return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));
}
case '-':
if (mandoc_hyph(buf + offs, c))
*c = ASCII_HYPH;
+ ws = NULL;
break;
case ' ':
if (NULL == ws)
assert(buf < end);
- if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
+ if (mandoc_eos(buf+offs, (size_t)(end-buf-offs), 0))
m->last->flags |= MDOC_EOS;
return(1);
}
-static int
-macrowarn(struct mdoc *m, int ln, const char *buf, int offs)
-{
- int rc;
-
- rc = mdoc_vmsg(m, MANDOCERR_MACRO, ln, offs,
- "unknown macro: %s%s",
- buf, strlen(buf) > 3 ? "..." : "");
-
- /* FIXME: logic should be in driver. */
- return(MDOC_IGN_MACRO & m->pflags ? rc : 0);
-}
-
-
/*
* Parse a macro line, that is, a line beginning with the control
* character.
*/
-int
+static int
mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs)
{
- enum mdoct tok;
- int i, j, sv;
- char mac[5];
+ enum mdoct tok;
+ int i, j, sv;
+ char mac[5];
+ struct mdoc_node *n;
/* Empty lines are ignored. */
i = offs;
- /* Accept whitespace after the initial control char. */
+ /* Accept tabs/whitespace after the initial control char. */
- if (' ' == buf[i]) {
+ if (' ' == buf[i] || '\t' == buf[i]) {
i++;
- while (buf[i] && ' ' == buf[i])
+ while (buf[i] && (' ' == buf[i] || '\t' == buf[i]))
i++;
if ('\0' == buf[i])
return(1);
sv = 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;
-
- /* Check for invalid characters. */
-
- if (isgraph((u_char)buf[i]))
- continue;
- if ( ! mdoc_pmsg(m, ln, i, MANDOCERR_BADCHAR))
- return(0);
- i--;
- }
+ /*
+ * Copy the first word into a nil-terminated buffer.
+ * Stop copying when a tab, space, or eoln is encountered.
+ */
+ j = 0;
+ while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
+ mac[j++] = buf[i++];
mac[j] = '\0';
- if (j == 4 || j < 2) {
- if ( ! macrowarn(m, ln, mac, sv))
- goto err;
- return(1);
- }
-
- if (MDOC_MAX == (tok = mdoc_hash_find(mac))) {
- if ( ! macrowarn(m, ln, mac, sv))
- goto err;
+ tok = (j > 1 || j < 4) ? mdoc_hash_find(mac) : MDOC_MAX;
+ if (MDOC_MAX == tok) {
+ mdoc_vmsg(m, MANDOCERR_MACRO, ln, sv,
+ "unknown macro: %s%s",
+ buf, strlen(buf) > 3 ? "..." : "");
return(1);
}
- /* The macro is sane. Jump to the next word. */
+ /* Disregard the first trailing tab, if applicable. */
+
+ if ('\t' == buf[i])
+ i++;
+
+ /* Jump to the next non-whitespace word. */
while (buf[i] && ' ' == buf[i])
i++;
if ( ! mdoc_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE))
goto err;
- /*
- * Begin recursive parse sequence. Since we're at the start of
- * the line, we don't need to do callable/parseable checks.
+ /*
+ * If an initial macro or a list invocation, divert directly
+ * into macro processing.
+ */
+
+ if (NULL == m->last || MDOC_It == tok || MDOC_El == tok) {
+ if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))
+ goto err;
+ return(1);
+ }
+
+ n = m->last;
+ assert(m->last);
+
+ /*
+ * If the first macro of a `Bl -column', open an `It' block
+ * context around the parsed macro.
+ */
+
+ if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
+ LIST_column == n->data.Bl->type) {
+ m->flags |= MDOC_FREECOL;
+ if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))
+ goto err;
+ return(1);
+ }
+
+ /*
+ * If we're following a block-level `It' within a `Bl -column'
+ * context (perhaps opened in the above block or in ptext()),
+ * then open an `It' block context around the parsed macro.
*/
+
+ if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
+ NULL != n->parent &&
+ MDOC_Bl == n->parent->tok &&
+ LIST_column == n->parent->data.Bl->type) {
+ m->flags |= MDOC_FREECOL;
+ if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))
+ goto err;
+ return(1);
+ }
+
+ /* Normal processing of a macro. */
+
if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))
goto err;
git.ckatri.com / mandoc.git / blobdiff