-/* $Id: mdoc.c,v 1.31 2009/01/15 17:38:57 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.74 2009/04/02 06:51:44 kristaps Exp $ */
/*
- * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the
*/
#include <assert.h>
#include <ctype.h>
-#include <err.h>
#include <stdarg.h>
-#include <stdlib.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
-#include "private.h"
+#include "libmdoc.h"
+
+enum merr {
+ ENOCALL,
+ EBODYPROL,
+ EPROLBODY,
+ ESPACE,
+ ETEXTPROL,
+ ENOBLANK,
+ EMALLOC
+};
const char *const __mdoc_macronames[MDOC_MAX] = {
"\\\"", "Dd", "Dt", "Os",
"Tn", "Ux", "Xc", "Xo",
"Fo", "Fc", "Oo", "Oc",
"Bk", "Ek", "Bt", "Hf",
- "Fr", "Ud",
+ "Fr", "Ud", "Lb", "Ap",
+ "Lp", "Lk", "Mt", "Brq",
+ /* LINTED */
+ "Bro", "Brc", "\%C", "Es",
+ /* LINTED */
+ "En", "Dx", "\%Q"
};
const char *const __mdoc_argnames[MDOC_ARG_MAX] = {
"tag", "diag", "hang",
"ohang", "inset", "column",
"width", "compact", "std",
- "p1003.1-88", "p1003.1-90", "p1003.1-96",
- "p1003.1-2001", "p1003.1-2004", "p1003.1",
- "p1003.1b", "p1003.1b-93", "p1003.1c-95",
- "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
- "p1003.2", "p1387.2", "isoC-90",
- "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
- "isoC-99", "ansiC", "ansiC-89",
- "ansiC-99", "ieee754", "iso8802-3",
- "xpg3", "xpg4", "xpg4.2",
- "xpg4.3", "xbd5", "xcu5",
- "xsh5", "xns5", "xns5.2d2.0",
- "xcurses4.2", "susv2", "susv3",
- "svid4", "filled", "words",
- "emphasis", "symbolic",
+ "filled", "words", "emphasis",
+ "symbolic", "nested"
};
-const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
- { NULL, 0 }, /* \" */
- { macro_constant, MDOC_PROLOGUE }, /* Dd */
- { macro_constant, MDOC_PROLOGUE }, /* Dt */
- { macro_constant, MDOC_PROLOGUE }, /* Os */
- { macro_scoped, 0 }, /* Sh */
- { macro_scoped, 0 }, /* Ss */
- { macro_text, 0 }, /* Pp */
- { macro_scoped_line, MDOC_PARSED }, /* D1 */
- { macro_scoped_line, MDOC_PARSED }, /* Dl */
- { macro_scoped, MDOC_EXPLICIT }, /* Bd */
- { macro_scoped_close, MDOC_EXPLICIT }, /* Ed */
- { macro_scoped, MDOC_EXPLICIT }, /* Bl */
- { macro_scoped_close, MDOC_EXPLICIT }, /* El */
- { macro_scoped, MDOC_PARSED | MDOC_TABSEP}, /* It */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
- { macro_constant, MDOC_PARSED }, /* An */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
- { macro_constant, MDOC_QUOTABLE }, /* Cd */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
- { macro_constant, 0 }, /* Ex */
- { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fa */
- { macro_constant, 0 }, /* Fd */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
- { macro_text, MDOC_CALLABLE | MDOC_QUOTABLE | MDOC_PARSED }, /* Fn */
- { macro_text, MDOC_PARSED }, /* Ft */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */
- { macro_constant, 0 }, /* In */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Li */
- { macro_constant, 0 }, /* Nd */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
- { macro_obsolete, 0 }, /* Ot */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
- { macro_constant, 0 }, /* Rv */
- /* XXX - .St supposed to be (but isn't) callable. */
- { macro_constant_delimited, MDOC_PARSED }, /* St */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
- { macro_constant, MDOC_QUOTABLE }, /* %A */
- { macro_constant, MDOC_QUOTABLE }, /* %B */
- { macro_constant, MDOC_QUOTABLE }, /* %D */
- { macro_constant, MDOC_QUOTABLE }, /* %I */
- { macro_constant, MDOC_QUOTABLE }, /* %J */
- { macro_constant, MDOC_QUOTABLE }, /* %N */
- { macro_constant, MDOC_QUOTABLE }, /* %O */
- { macro_constant, MDOC_QUOTABLE }, /* %P */
- { macro_constant, MDOC_QUOTABLE }, /* %R */
- { macro_constant, MDOC_QUOTABLE }, /* %T */
- { macro_constant, MDOC_QUOTABLE }, /* %V */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */
- { macro_constant, 0 }, /* At */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */
- { macro_scoped, MDOC_EXPLICIT }, /* Bf */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */
- { macro_constant_delimited, MDOC_PARSED }, /* Bsx */
- { macro_constant_delimited, MDOC_PARSED }, /* Bx */
- { macro_constant, 0 }, /* Db */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */
- { macro_scoped_close, MDOC_EXPLICIT }, /* Ef */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Em */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
- { macro_constant_delimited, MDOC_PARSED }, /* Fx */
- { macro_text, MDOC_PARSED }, /* Ms */
- { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* No */
- { macro_constant_delimited, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */
- { macro_constant_delimited, MDOC_PARSED }, /* Nx */
- { macro_constant_delimited, MDOC_PARSED }, /* Ox */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */
- { macro_constant, MDOC_PARSED }, /* Pf */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */
- { macro_scoped_close, MDOC_EXPLICIT }, /* Re */
- { macro_scoped, MDOC_EXPLICIT }, /* Rs */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */
- { macro_scoped_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */
- { macro_constant, 0 }, /* Sm */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */
- { macro_text, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
- { macro_constant_delimited, MDOC_PARSED }, /* Ux */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
- /* XXX - .Fo supposed to be (but isn't) callable. */
- { macro_scoped, MDOC_EXPLICIT | MDOC_PARSED }, /* Fo */
- /* XXX - .Fc supposed to be (but isn't) callable. */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_PARSED }, /* Fc */
- { macro_constant_scoped, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */
- { macro_scoped_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */
- { macro_scoped, MDOC_EXPLICIT }, /* Bk */
- { macro_scoped_close, MDOC_EXPLICIT }, /* Ek */
- { macro_constant, 0 }, /* Bt */
- { macro_constant, 0 }, /* Hf */
- { macro_obsolete, 0 }, /* Fr */
- { macro_constant, 0 }, /* Ud */
-};
-
const char * const *mdoc_macronames = __mdoc_macronames;
const char * const *mdoc_argnames = __mdoc_argnames;
-const struct mdoc_macro * const mdoc_macros = __mdoc_macros;
-
-static struct mdoc_arg *argdup(size_t, const struct mdoc_arg *);
-static void argfree(size_t, struct mdoc_arg *);
-static void argcpy(struct mdoc_arg *,
- const struct mdoc_arg *);
-
-static void mdoc_node_freelist(struct mdoc_node *);
-static int mdoc_node_append(struct mdoc *,
+static void mdoc_free1(struct mdoc *);
+static int mdoc_alloc1(struct mdoc *);
+static struct mdoc_node *node_alloc(struct mdoc *, int, int,
+ int, enum mdoc_type);
+static int node_append(struct mdoc *,
struct mdoc_node *);
-static void mdoc_elem_free(struct mdoc_elem *);
-static void mdoc_text_free(struct mdoc_text *);
+static int parsetext(struct mdoc *, int, char *);
+static int parsemacro(struct mdoc *, int, char *);
+static int macrowarn(struct mdoc *, int, const char *);
+static int perr(struct mdoc *, int, int, enum merr);
+#define verr(m, t) perr((m), (m)->last->line, (m)->last->pos, (t))
+/*
+ * Get the first (root) node of the parse tree.
+ */
const struct mdoc_node *
-mdoc_result(struct mdoc *mdoc)
+mdoc_node(const struct mdoc *m)
{
- return(mdoc->first);
+ return(MDOC_HALT & m->flags ? NULL : m->first);
}
-void
-mdoc_free(struct mdoc *mdoc)
+const struct mdoc_meta *
+mdoc_meta(const struct mdoc *m)
{
- if (mdoc->first)
- mdoc_node_freelist(mdoc->first);
- if (mdoc->htab)
- mdoc_tokhash_free(mdoc->htab);
-
- free(mdoc);
+ return(MDOC_HALT & m->flags ? NULL : &m->meta);
}
-struct mdoc *
-mdoc_alloc(void *data, const struct mdoc_cb *cb)
+static void
+mdoc_free1(struct mdoc *mdoc)
{
- struct mdoc *p;
- p = xcalloc(1, sizeof(struct mdoc));
+ if (mdoc->first)
+ mdoc_node_freelist(mdoc->first);
+ if (mdoc->meta.title)
+ free(mdoc->meta.title);
+ if (mdoc->meta.os)
+ free(mdoc->meta.os);
+ if (mdoc->meta.name)
+ free(mdoc->meta.name);
+ if (mdoc->meta.arch)
+ free(mdoc->meta.arch);
+ if (mdoc->meta.vol)
+ free(mdoc->meta.vol);
+}
- p->data = data;
- (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
- p->last = xcalloc(1, sizeof(struct mdoc_node));
- p->last->type = MDOC_ROOT;
- p->first = p->last;
+static int
+mdoc_alloc1(struct mdoc *mdoc)
+{
- p->next = MDOC_NEXT_CHILD;
- p->htab = mdoc_tokhash_alloc();
+ bzero(&mdoc->meta, sizeof(struct mdoc_meta));
+ mdoc->flags = 0;
+ mdoc->lastnamed = mdoc->lastsec = 0;
+ mdoc->last = calloc(1, sizeof(struct mdoc_node));
+ if (NULL == mdoc->last)
+ return(0);
- return(p);
+ mdoc->first = mdoc->last;
+ mdoc->last->type = MDOC_ROOT;
+ mdoc->next = MDOC_NEXT_CHILD;
+ return(1);
}
+/*
+ * Free up all resources contributed by a parse: the node tree,
+ * meta-data and so on. Then reallocate the root node for another
+ * parse.
+ */
int
-mdoc_endparse(struct mdoc *mdoc)
+mdoc_reset(struct mdoc *mdoc)
{
- if (MDOC_HALT & mdoc->flags)
- return(0);
- if (NULL == mdoc->first)
- return(1);
+ mdoc_free1(mdoc);
+ return(mdoc_alloc1(mdoc));
+}
- assert(mdoc->last);
- if ( ! macro_end(mdoc)) {
- mdoc->flags |= MDOC_HALT;
- return(0);
- }
- return(1);
+
+/*
+ * Completely free up all resources.
+ */
+void
+mdoc_free(struct mdoc *mdoc)
+{
+
+ mdoc_free1(mdoc);
+ if (mdoc->htab)
+ mdoc_hash_free(mdoc->htab);
+ free(mdoc);
}
-int
-mdoc_parseln(struct mdoc *mdoc, int line, char *buf)
+struct mdoc *
+mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb)
{
- int c, i;
- char tmp[5];
+ struct mdoc *p;
- if (MDOC_HALT & mdoc->flags)
- return(0);
+ if (NULL == (p = calloc(1, sizeof(struct mdoc))))
+ return(NULL);
+ if (cb)
+ (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
- if ('.' != *buf) {
- if (SEC_PROLOGUE != mdoc->sec_lastn) {
- if ( ! mdoc_word_alloc(mdoc, line, 0, buf))
- return(0);
- mdoc->next = MDOC_NEXT_SIBLING;
- return(1);
- }
- return(mdoc_perr(mdoc, line, 0, "text disallowed"));
- }
+ p->data = data;
+ p->pflags = pflags;
- if (buf[1] && '\\' == buf[1])
- if (buf[2] && '\"' == buf[2])
- return(1);
+ if (NULL == (p->htab = mdoc_hash_alloc())) {
+ free(p);
+ return(NULL);
+ } else if (mdoc_alloc1(p))
+ return(p);
- i = 1;
- while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
- i++;
+ free(p);
+ return(NULL);
+}
- if (i == (int)sizeof(tmp)) {
- mdoc->flags |= MDOC_HALT;
- return(mdoc_perr(mdoc, line, 1, "unknown macro"));
- } else if (i <= 2) {
- mdoc->flags |= MDOC_HALT;
- return(mdoc_perr(mdoc, line, 1, "unknown macro"));
- }
- i--;
+/*
+ * Climb back up the parse tree, validating open scopes. Mostly calls
+ * through to macro_end in macro.c.
+ */
+int
+mdoc_endparse(struct mdoc *m)
+{
- (void)memcpy(tmp, buf + 1, (size_t)i);
- tmp[i++] = 0;
+ if (MDOC_HALT & m->flags)
+ return(0);
+ else if (mdoc_macroend(m))
+ return(1);
+ m->flags |= MDOC_HALT;
+ return(0);
+}
- if (MDOC_MAX == (c = mdoc_find(mdoc, tmp))) {
- mdoc->flags |= MDOC_HALT;
- return(mdoc_perr(mdoc, line, 1, "unknown macro"));
- }
- while (buf[i] && isspace(buf[i]))
- i++;
+/*
+ * Main parse routine. Parses a single line -- really just hands off to
+ * the macro or text parser.
+ */
+int
+mdoc_parseln(struct mdoc *m, int ln, char *buf)
+{
+
+ /* If in error-mode, then we parse no more. */
- if ( ! mdoc_macro(mdoc, c, line, 1, &i, buf)) {
- mdoc->flags |= MDOC_HALT;
+ if (MDOC_HALT & m->flags)
return(0);
- }
- return(1);
+
+ return('.' == *buf ? parsemacro(m, ln, buf) :
+ parsetext(m, ln, buf));
}
int
-mdoc_macro(struct mdoc *mdoc, int tok,
- int ln, int ppos, int *pos, char *buf)
+mdoc_macro(struct mdoc *m, int tok,
+ int ln, int pp, int *pos, char *buf)
{
- assert(mdoc_macros[tok].fp);
+ /* FIXME - these should happen during validation. */
+
+ if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
+ SEC_PROLOGUE != m->lastnamed)
+ return(perr(m, ln, pp, EPROLBODY));
- if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
- SEC_PROLOGUE == mdoc->sec_lastn)
- return(mdoc_perr(mdoc, ln, ppos, "macro disallowed in document prologue"));
- if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
- return(mdoc_perr(mdoc, ln, ppos, "macro not callable"));
- return((*mdoc_macros[tok].fp)(mdoc, tok, ln, ppos, pos, buf));
+ if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
+ SEC_PROLOGUE == m->lastnamed)
+ return(perr(m, ln, pp, EBODYPROL));
+
+ if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
+ return(perr(m, ln, pp, ENOCALL));
+
+ return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
}
static int
-mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
+perr(struct mdoc *m, int line, int pos, enum merr type)
{
- const char *nn, *nt, *on, *ot, *act;
+ char *p;
- assert(mdoc->last);
- assert(mdoc->first);
- assert(MDOC_ROOT != p->type);
+ p = NULL;
+ switch (type) {
+ case (ENOCALL):
+ p = "not callable";
+ break;
+ case (EPROLBODY):
+ p = "macro disallowed in document body";
+ break;
+ case (EBODYPROL):
+ p = "macro disallowed in document prologue";
+ break;
+ case (EMALLOC):
+ p = "memory exhausted";
+ break;
+ case (ETEXTPROL):
+ p = "text disallowed in document prologue";
+ break;
+ case (ENOBLANK):
+ p = "blank lines disallowed in non-literal contexts";
+ break;
+ case (ESPACE):
+ p = "whitespace disallowed after delimiter";
+ break;
+ }
+ assert(p);
+ return(mdoc_perr(m, line, pos, p));
+}
- if (MDOC_TEXT == mdoc->last->type)
- on = "<text>";
- else if (MDOC_ROOT == mdoc->last->type)
- on = "<root>";
- else
- on = mdoc_macronames[mdoc->last->tok];
- if (MDOC_TEXT == p->type)
- nn = "<text>";
- else if (MDOC_ROOT == p->type)
- nn = "<root>";
- else
- nn = mdoc_macronames[p->tok];
+static int
+node_append(struct mdoc *mdoc, struct mdoc_node *p)
+{
- ot = mdoc_type2a(mdoc->last->type);
- nt = mdoc_type2a(p->type);
+ assert(mdoc->last);
+ assert(mdoc->first);
+ assert(MDOC_ROOT != p->type);
switch (mdoc->next) {
case (MDOC_NEXT_SIBLING):
mdoc->last->next = p;
p->prev = mdoc->last;
p->parent = mdoc->last->parent;
- act = "sibling";
break;
case (MDOC_NEXT_CHILD):
mdoc->last->child = p;
p->parent = mdoc->last;
- act = "child";
break;
default:
abort();
switch (p->type) {
case (MDOC_HEAD):
assert(MDOC_BLOCK == p->parent->type);
- p->parent->data.block.head = p;
+ p->parent->head = p;
break;
case (MDOC_TAIL):
assert(MDOC_BLOCK == p->parent->type);
- p->parent->data.block.tail = p;
+ p->parent->tail = p;
break;
case (MDOC_BODY):
assert(MDOC_BLOCK == p->parent->type);
- p->parent->data.block.body = p;
+ p->parent->body = p;
break;
default:
break;
}
mdoc->last = p;
- mdoc_msg(mdoc, "parse: %s `%s' %s of %s `%s'",
- nt, nn, act, ot, on);
+
+ switch (p->type) {
+ case (MDOC_TEXT):
+ if ( ! mdoc_valid_post(mdoc))
+ return(0);
+ if ( ! mdoc_action_post(mdoc))
+ return(0);
+ break;
+ default:
+ break;
+ }
+
return(1);
}
-int
-mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+static struct mdoc_node *
+node_alloc(struct mdoc *mdoc, int line,
+ int pos, int tok, enum mdoc_type type)
{
struct mdoc_node *p;
- assert(mdoc->first);
- assert(mdoc->last);
-
- p = xcalloc(1, sizeof(struct mdoc_node));
+ if (NULL == (p = calloc(1, sizeof(struct mdoc_node)))) {
+ (void)verr(mdoc, EMALLOC);
+ return(NULL);
+ }
+ p->sec = mdoc->lastsec;
p->line = line;
p->pos = pos;
- p->type = MDOC_TAIL;
p->tok = tok;
+ if (MDOC_TEXT != (p->type = type))
+ assert(p->tok >= 0);
- return(mdoc_node_append(mdoc, p));
+ return(p);
}
int
-mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
{
struct mdoc_node *p;
- assert(mdoc->first);
- assert(mdoc->last);
-
- p = xcalloc(1, sizeof(struct mdoc_node));
-
- p->line = line;
- p->pos = pos;
- p->type = MDOC_HEAD;
- p->tok = tok;
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL);
+ if (NULL == p)
+ return(0);
+ return(node_append(mdoc, p));
}
int
-mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
+mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
{
struct mdoc_node *p;
assert(mdoc->first);
assert(mdoc->last);
- p = xcalloc(1, sizeof(struct mdoc_node));
-
- p->line = line;
- p->pos = pos;
- p->type = MDOC_BODY;
- p->tok = tok;
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD);
+ if (NULL == p)
+ return(0);
+ return(node_append(mdoc, p));
}
int
-mdoc_root_alloc(struct mdoc *mdoc)
+mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, int tok)
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
-
- p->type = MDOC_ROOT;
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);
+ if (NULL == p)
+ return(0);
+ return(node_append(mdoc, p));
}
int
mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
- int tok, size_t argsz, const struct mdoc_arg *args)
+ int tok, struct mdoc_arg *args)
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
-
- p->pos = pos;
- p->line = line;
- p->type = MDOC_BLOCK;
- p->tok = tok;
- p->data.block.argc = argsz;
- p->data.block.argv = argdup(argsz, args);
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK);
+ if (NULL == p)
+ return(0);
+ if ((p->args = args))
+ (args->refcnt)++;
+ return(node_append(mdoc, p));
}
int
mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
- int tok, size_t argsz, const struct mdoc_arg *args)
+ int tok, struct mdoc_arg *args)
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
-
- p->line = line;
- p->pos = pos;
- p->type = MDOC_ELEM;
- p->tok = tok;
- p->data.elem.argc = argsz;
- p->data.elem.argv = argdup(argsz, args);
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM);
+ if (NULL == p)
+ return(0);
+ if ((p->args = args))
+ (args->refcnt)++;
+ return(node_append(mdoc, p));
}
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
- p->line = line;
- p->pos = pos;
- p->type = MDOC_TEXT;
- p->data.text.string = xstrdup(word);
-
- return(mdoc_node_append(mdoc, p));
+ p = node_alloc(mdoc, line, pos, -1, MDOC_TEXT);
+ if (NULL == p)
+ return(0);
+ if (NULL == (p->string = strdup(word))) {
+ (void)verr(mdoc, EMALLOC);
+ return(0);
+ }
+ return(node_append(mdoc, p));
}
-static void
-argfree(size_t sz, struct mdoc_arg *p)
+void
+mdoc_node_free(struct mdoc_node *p)
{
- int i, j;
-
- if (0 == sz)
- return;
- assert(p);
- /* LINTED */
- for (i = 0; i < (int)sz; i++)
- if (p[i].sz > 0) {
- assert(p[i].value);
- /* LINTED */
- for (j = 0; j < (int)p[i].sz; j++)
- free(p[i].value[j]);
- free(p[i].value);
- }
+ if (p->string)
+ free(p->string);
+ if (p->args)
+ mdoc_argv_free(p->args);
free(p);
}
-static void
-mdoc_elem_free(struct mdoc_elem *p)
+void
+mdoc_node_freelist(struct mdoc_node *p)
{
- argfree(p->argc, p->argv);
+ if (p->child)
+ mdoc_node_freelist(p->child);
+ if (p->next)
+ mdoc_node_freelist(p->next);
+
+ mdoc_node_free(p);
}
-static void
-mdoc_block_free(struct mdoc_block *p)
+/*
+ * Parse free-form text, that is, a line that does not begin with the
+ * control character.
+ */
+static int
+parsetext(struct mdoc *m, int line, char *buf)
{
- argfree(p->argc, p->argv);
-}
+ if (SEC_PROLOGUE == m->lastnamed)
+ return(perr(m, line, 0, ETEXTPROL));
+ if (0 == buf[0] && ! (MDOC_LITERAL & m->flags))
+ return(perr(m, line, 0, ENOBLANK));
-static void
-mdoc_text_free(struct mdoc_text *p)
-{
+ if ( ! mdoc_word_alloc(m, line, 0, buf))
+ return(0);
- if (p->string)
- free(p->string);
+ m->next = MDOC_NEXT_SIBLING;
+ return(1);
}
-void
-mdoc_node_free(struct mdoc_node *p)
+static int
+macrowarn(struct mdoc *m, int ln, const char *buf)
{
-
- switch (p->type) {
- case (MDOC_TEXT):
- mdoc_text_free(&p->data.text);
- break;
- case (MDOC_ELEM):
- mdoc_elem_free(&p->data.elem);
- break;
- case (MDOC_BLOCK):
- mdoc_block_free(&p->data.block);
- break;
- default:
- break;
- }
-
- free(p);
+ if ( ! (MDOC_IGN_MACRO & m->pflags))
+ return(mdoc_perr(m, ln, 1,
+ "unknown macro: %s%s",
+ buf, strlen(buf) > 3 ? "..." : ""));
+ return(mdoc_pwarn(m, ln, 1, WARN_SYNTAX,
+ "unknown macro: %s%s",
+ buf, strlen(buf) > 3 ? "..." : ""));
}
-static void
-mdoc_node_freelist(struct mdoc_node *p)
+
+/*
+ * Parse a macro line, that is, a line beginning with the control
+ * character.
+ */
+int
+parsemacro(struct mdoc *m, int ln, char *buf)
{
+ int i, c;
+ char mac[5];
- if (p->child)
- mdoc_node_freelist(p->child);
- if (p->next)
- mdoc_node_freelist(p->next);
+ /* Comments and empties are quickly ignored. */
- mdoc_node_free(p);
-}
+ if (0 == buf[1])
+ return(1);
+ if (' ' == buf[1]) {
+ i = 2;
+ while (buf[i] && ' ' == buf[i])
+ i++;
+ if (0 == buf[i])
+ return(1);
+ return(perr(m, ln, 1, ESPACE));
+ }
-int
-mdoc_find(const struct mdoc *mdoc, const char *key)
-{
+ if (buf[1] && '\\' == buf[1])
+ if (buf[2] && '\"' == buf[2])
+ return(1);
- return(mdoc_tokhash_find(mdoc->htab, key));
-}
+ /* Copy the first word into a nil-terminated buffer. */
+
+ for (i = 1; i < 5; i++) {
+ if (0 == (mac[i - 1] = buf[i]))
+ break;
+ else if (' ' == buf[i])
+ break;
+ }
+ mac[i - 1] = 0;
-static void
-argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
-{
- int i;
+ if (i == 5 || i <= 2) {
+ if ( ! macrowarn(m, ln, mac))
+ goto err;
+ return(1);
+ }
+
+ if (MDOC_MAX == (c = mdoc_hash_find(m->htab, mac))) {
+ if ( ! macrowarn(m, ln, mac))
+ goto err;
+ return(1);
+ }
- dst->line = src->line;
- dst->pos = src->pos;
- dst->arg = src->arg;
- if (0 == (dst->sz = src->sz))
- return;
- dst->value = xcalloc(dst->sz, sizeof(char *));
- for (i = 0; i < (int)dst->sz; i++)
- dst->value[i] = xstrdup(src->value[i]);
-}
+ /* The macro is sane. Jump to the next word. */
+ while (buf[i] && ' ' == buf[i])
+ i++;
-static struct mdoc_arg *
-argdup(size_t argsz, const struct mdoc_arg *args)
-{
- struct mdoc_arg *pp;
- int i;
+ /* Begin recursive parse sequence. */
- if (0 == argsz)
- return(NULL);
+ if ( ! mdoc_macro(m, c, ln, 1, &i, buf))
+ goto err;
- pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
- for (i = 0; i < (int)argsz; i++)
- argcpy(&pp[i], &args[i]);
+ return(1);
- return(pp);
-}
+err: /* Error out. */
+ m->flags |= MDOC_HALT;
+ return(0);
+}
git.ckatri.com / mandoc.git / blobdiff