-/* $Id: mdoc.c,v 1.11 2008/12/30 13:43:53 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.63 2009/03/12 15:55:11 kristaps Exp $ */
/*
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
*
#include "private.h"
+/*
+ * Main caller in the libmdoc library. This begins the parsing routine,
+ * handles allocation of data, and so forth. Most of the "work" is done
+ * in macro.c and validate.c.
+ */
+
+static struct mdoc_node *mdoc_node_alloc(const struct mdoc *);
+static int mdoc_node_append(struct mdoc *,
+ struct mdoc_node *);
+
+static int parsetext(struct mdoc *, int, char *);
+static int parsemacro(struct mdoc *, int, char *);
+static int macrowarn(struct mdoc *, int, const char *);
+
+
const char *const __mdoc_macronames[MDOC_MAX] = {
"\\\"", "Dd", "Dt", "Os",
"Sh", "Ss", "Pp", "D1",
"Tn", "Ux", "Xc", "Xo",
"Fo", "Fc", "Oo", "Oc",
"Bk", "Ek", "Bt", "Hf",
- "Fr", "Ud",
+ "Fr", "Ud", "Lb", "Ap",
+ "Lp", "Lk", "Mt", "Brq",
+ "Bro", "Brc"
};
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",
+ "filled", "words", "emphasis",
+ "symbolic"
};
-const struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
- { NULL, 0 }, /* \" */
- { macro_prologue_ddate, 0 }, /* Dd */
- { macro_prologue_dtitle, 0 }, /* Dt */
- { macro_prologue_os, 0 }, /* Os */
- { macro_scoped_implicit, 0 }, /* Sh */
- { macro_scoped_implicit, 0 }, /* Ss */
- { macro_text, 0 }, /* Pp */
- { macro_scoped_line, 0 }, /* D1 */
- { macro_scoped_line, 0 }, /* Dl */
- { macro_scoped_explicit, MDOC_EXPLICIT }, /* Bd */
- { macro_scoped_explicit, 0 }, /* Ed */
- { macro_scoped_explicit, MDOC_EXPLICIT }, /* Bl */
- { macro_scoped_explicit, 0 }, /* El */
- { NULL, 0 }, /* It */
- { macro_text, MDOC_CALLABLE }, /* Ad */
- { NULL, 0 }, /* An */
- { macro_text, MDOC_CALLABLE }, /* Ar */
- { NULL, 0 }, /* Cd */
- { macro_text, MDOC_CALLABLE }, /* Cm */
- { macro_text, MDOC_CALLABLE }, /* Dv */
- { macro_text, MDOC_CALLABLE }, /* Er */
- { macro_text, MDOC_CALLABLE }, /* Ev */
- { macro_constant_argv, 0 }, /* Ex */
- { macro_text, MDOC_CALLABLE }, /* Fa */
- { NULL, 0 }, /* Fd */
- { macro_text, MDOC_CALLABLE }, /* Fl */
- { NULL, 0 }, /* Fn */
- { macro_text, 0 }, /* Ft */
- { macro_text, MDOC_CALLABLE }, /* Ic */
- { NULL, 0 }, /* In */
- { macro_text, MDOC_CALLABLE }, /* Li */
- { macro_constant, 0 }, /* Nd */
- { NULL, 0 }, /* Nm */
- { NULL, 0 }, /* Op */
- { NULL, 0 }, /* Ot */
- { macro_text, MDOC_CALLABLE }, /* Pa */
- { macro_constant_argv, 0 }, /* Rv */
- { NULL, 0 }, /* St */
- { macro_text, MDOC_CALLABLE }, /* Va */
- { macro_text, MDOC_CALLABLE }, /* Vt */
- { NULL, 0 }, /* Xr */
- { NULL, 0 }, /* %A */
- { NULL, 0 }, /* %B */
- { NULL, 0 }, /* %D */
- { NULL, 0 }, /* %I */
- { NULL, 0 }, /* %J */
- { NULL, 0 }, /* %N */
- { NULL, 0 }, /* %O */
- { NULL, 0 }, /* %P */
- { NULL, 0 }, /* %R */
- { NULL, 0 }, /* %T */
- { NULL, 0 }, /* %V */
- { NULL, 0 }, /* Ac */
- { NULL, 0 }, /* Ao */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Aq */
- { macro_constant, 0 }, /* At */
- { NULL, 0 }, /* Bc */
- { NULL, 0 }, /* Bf */
- { NULL, 0 }, /* Bo */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Bq */
- { macro_constant_delimited, 0 }, /* Bsx */
- { macro_constant_delimited, 0 }, /* Bx */
- { NULL, 0 }, /* Db */
- { NULL, 0 }, /* Dc */
- { NULL, 0 }, /* Do */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Dq */
- { NULL, 0 }, /* Ec */
- { NULL, 0 }, /* Ef */
- { macro_text, MDOC_CALLABLE }, /* Em */
- { NULL, 0 }, /* Eo */
- { macro_constant_delimited, 0 }, /* Fx */
- { macro_text, 0 }, /* Ms */
- { NULL, 0 }, /* No */
- { NULL, 0 }, /* Ns */
- { macro_constant_delimited, 0 }, /* Nx */
- { macro_constant_delimited, 0 }, /* Ox */
- { NULL, 0 }, /* Pc */
- { NULL, 0 }, /* Pf */
- { NULL, 0 }, /* Po */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Pq */
- { NULL, 0 }, /* Qc */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Ql */
- { NULL, 0 }, /* Qo */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Qq */
- { NULL, 0 }, /* Re */
- { NULL, 0 }, /* Rs */
- { NULL, 0 }, /* Sc */
- { NULL, 0 }, /* So */
- { macro_scoped_pline, MDOC_CALLABLE }, /* Sq */
- { NULL, 0 }, /* Sm */
- { macro_text, MDOC_CALLABLE }, /* Sx */
- { macro_text, MDOC_CALLABLE }, /* Sy */
- { macro_text, MDOC_CALLABLE }, /* Tn */
- { macro_constant_delimited, 0 }, /* Ux */
- { NULL, 0 }, /* Xc */
- { NULL, 0 }, /* Xo */
- { NULL, 0 }, /* Fo */
- { NULL, 0 }, /* Fc */
- { NULL, 0 }, /* Oo */
- { NULL, 0 }, /* Oc */
- { NULL, 0 }, /* Bk */
- { NULL, 0 }, /* Ek */
- { macro_constant, 0 }, /* Bt */
- { macro_constant, 0 }, /* Hf */
- { NULL, 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 char **paramdup(size_t, const char **);
-static void paramfree(size_t, char **);
+const struct mdoc_node *
+mdoc_node(const struct mdoc *mdoc)
+{
-static void mdoc_node_freelist(struct mdoc_node *);
-static void mdoc_node_append(struct mdoc *, int,
- struct mdoc_node *);
-static void mdoc_elem_free(struct mdoc_elem *);
-static void mdoc_text_free(struct mdoc_text *);
+ return(mdoc->first);
+}
-const struct mdoc_node *
-mdoc_result(struct mdoc *mdoc)
+const struct mdoc_meta *
+mdoc_meta(const struct mdoc *mdoc)
{
- return(mdoc->first);
+ return(&mdoc->meta);
}
mdoc_node_freelist(mdoc->first);
if (mdoc->htab)
mdoc_tokhash_free(mdoc->htab);
-
+ 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);
+
free(mdoc);
}
struct mdoc *
-mdoc_alloc(void *data, const struct mdoc_cb *cb)
+mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb)
{
struct mdoc *p;
p = xcalloc(1, sizeof(struct mdoc));
p->data = data;
- (void)memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
-
+ if (cb)
+ (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;
+ p->pflags = pflags;
+ p->next = MDOC_NEXT_CHILD;
p->htab = mdoc_tokhash_alloc();
+
return(p);
}
int
-mdoc_parseln(struct mdoc *mdoc, char *buf)
+mdoc_endparse(struct mdoc *mdoc)
{
- int c, i;
- char tmp[5];
- if ('.' != *buf) {
- mdoc_word_alloc(mdoc, 0, buf);
+ if (MDOC_HALT & mdoc->flags)
+ return(0);
+ if (NULL == mdoc->first)
return(1);
- }
-
- if (buf[1] && '\\' == buf[1])
- if (buf[2] && '\"' == buf[2])
- return(1);
- i = 1;
- while (buf[i] && ! isspace(buf[i]) && i < (int)sizeof(tmp))
- i++;
-
- if (i == (int)sizeof(tmp))
- return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
- else if (i <= 2)
- return(mdoc_err(mdoc, -1, 1, ERR_MACRO_NOTSUP));
+ assert(mdoc->last);
+ if ( ! macro_end(mdoc)) {
+ mdoc->flags |= MDOC_HALT;
+ return(0);
+ }
+ return(1);
+}
- i--;
- (void)memcpy(tmp, buf + 1, (size_t)i);
- tmp[i++] = 0;
+/*
+ * 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 (MDOC_MAX == (c = mdoc_find(mdoc, tmp)))
- return(mdoc_err(mdoc, c, 1, ERR_MACRO_NOTSUP));
+ /* If in error-mode, then we parse no more. */
- while (buf[i] && isspace(buf[i]))
- i++;
+ if (MDOC_HALT & m->flags)
+ return(0);
- return(mdoc_macro(mdoc, c, 1, &i, buf));
+ return('.' == *buf ? parsemacro(m, ln, buf) :
+ parsetext(m, ln, buf));
}
void
-mdoc_msg(struct mdoc *mdoc, int pos, const char *fmt, ...)
+mdoc_vmsg(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
{
- va_list ap;
- char buf[256];
+ char buf[256];
+ va_list ap;
if (NULL == mdoc->cb.mdoc_msg)
return;
va_start(ap, fmt);
- (void)vsnprintf(buf, sizeof(buf), fmt, ap);
+ (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
va_end(ap);
-
- (*mdoc->cb.mdoc_msg)(mdoc->data, pos, buf);
+ (*mdoc->cb.mdoc_msg)(mdoc->data, ln, pos, buf);
}
int
-mdoc_err(struct mdoc *mdoc, int tok, int pos, enum mdoc_err type)
+mdoc_verr(struct mdoc *mdoc, int ln, int pos,
+ const char *fmt, ...)
{
+ char buf[256];
+ va_list ap;
if (NULL == mdoc->cb.mdoc_err)
return(0);
- return((*mdoc->cb.mdoc_err)(mdoc->data, tok, pos, type));
+
+ va_start(ap, fmt);
+ (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
+ va_end(ap);
+ return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
}
int
-mdoc_warn(struct mdoc *mdoc, int tok, int pos, enum mdoc_warn type)
+mdoc_vwarn(struct mdoc *mdoc, int ln, int pos,
+ enum mdoc_warn type, const char *fmt, ...)
{
+ char buf[256];
+ va_list ap;
if (NULL == mdoc->cb.mdoc_warn)
return(0);
- return((*mdoc->cb.mdoc_warn)(mdoc->data, tok, pos, type));
+
+ va_start(ap, fmt);
+ (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
+ va_end(ap);
+ return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, type, buf));
}
int
-mdoc_macro(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf)
+mdoc_macro(struct mdoc *m, int tok,
+ int ln, int pp, int *pos, char *buf)
{
- if (NULL == (mdoc_macros[tok].fp)) {
- (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTSUP);
- return(0);
- }
+ /* FIXME - these should happen during validation. */
- if (1 != ppos && ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) {
- (void)mdoc_err(mdoc, tok, ppos, ERR_MACRO_NOTCALL);
- return(0);
- }
+ if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
+ SEC_PROLOGUE != m->lastnamed)
+ return(mdoc_perr(m, ln, pp,
+ "disallowed in document body"));
+
+ if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
+ SEC_PROLOGUE == m->lastnamed)
+ return(mdoc_perr(m, ln, pp,
+ "disallowed in prologue"));
- /*mdoc_msg(mdoc, ppos, "calling `%s'", mdoc_macronames[tok]);*/
+ if (1 != pp && ! (MDOC_CALLABLE & mdoc_macros[tok].flags))
+ return(mdoc_perr(m, ln, pp, "not callable"));
- return((*mdoc_macros[tok].fp)(mdoc, tok, ppos, pos, buf));
+ return((*mdoc_macros[tok].fp)(m, tok, ln, pp, pos, buf));
}
-static void
-mdoc_node_append(struct mdoc *mdoc, int pos, struct mdoc_node *p)
+static int
+mdoc_node_append(struct mdoc *mdoc, struct mdoc_node *p)
{
- const char *nn, *on, *nt, *ot, *act;
- switch (p->type) {
- case (MDOC_TEXT):
- nn = p->data.text.string;
- nt = "text";
- break;
- case (MDOC_BODY):
- nn = mdoc_macronames[p->data.body.tok];
- nt = "body";
- break;
- case (MDOC_ELEM):
- nn = mdoc_macronames[p->data.elem.tok];
- nt = "elem";
- break;
- case (MDOC_HEAD):
- nn = mdoc_macronames[p->data.head.tok];
- nt = "head";
+ 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;
break;
- case (MDOC_BLOCK):
- nn = mdoc_macronames[p->data.block.tok];
- nt = "block";
+ case (MDOC_NEXT_CHILD):
+ mdoc->last->child = p;
+ p->parent = mdoc->last;
break;
default:
abort();
/* NOTREACHED */
}
- if (NULL == mdoc->first) {
- assert(NULL == mdoc->last);
- mdoc->first = p;
- mdoc->last = p;
- mdoc_msg(mdoc, pos, "parse: root %s `%s'", nt, nn);
- return;
- }
+ if ( ! mdoc_valid_pre(mdoc, p))
+ return(0);
- switch (mdoc->last->type) {
- case (MDOC_TEXT):
- on = "<text>";
- ot = "text";
- break;
- case (MDOC_BODY):
- on = mdoc_macronames[mdoc->last->data.body.tok];
- ot = "body";
- break;
- case (MDOC_ELEM):
- on = mdoc_macronames[mdoc->last->data.elem.tok];
- ot = "elem";
- break;
+ switch (p->type) {
case (MDOC_HEAD):
- on = mdoc_macronames[mdoc->last->data.head.tok];
- ot = "head";
+ assert(MDOC_BLOCK == p->parent->type);
+ p->parent->head = p;
break;
- case (MDOC_BLOCK):
- on = mdoc_macronames[mdoc->last->data.block.tok];
- ot = "block";
+ case (MDOC_TAIL):
+ assert(MDOC_BLOCK == p->parent->type);
+ p->parent->tail = p;
break;
- default:
- abort();
- /* NOTREACHED */
- }
-
- switch (p->type) {
case (MDOC_BODY):
- p->parent = mdoc->last->parent;
- mdoc->last->next = p;
- p->prev = mdoc->last;
- act = "sibling";
+ assert(MDOC_BLOCK == p->parent->type);
+ p->parent->body = p;
break;
-
- case (MDOC_HEAD):
- assert(mdoc->last->type == MDOC_BLOCK);
- p->parent = mdoc->last;
- mdoc->last->child = p;
- act = "child";
- break;
-
default:
- switch (mdoc->last->type) {
- case (MDOC_BODY):
- /* FALLTHROUGH */
- case (MDOC_HEAD):
- p->parent = mdoc->last;
- mdoc->last->child = p;
- act = "child";
- break;
- default:
- p->parent = mdoc->last->parent;
- p->prev = mdoc->last;
- mdoc->last->next = p;
- act = "sibling";
- break;
- }
break;
}
- mdoc_msg(mdoc, pos, "parse: %s `%s' %s %s `%s'",
- nt, nn, act, ot, on);
mdoc->last = p;
+ return(1);
}
-/* FIXME: deprecate paramsz, params. */
-void
-mdoc_head_alloc(struct mdoc *mdoc, int pos, int tok,
- size_t paramsz, const char **params)
+static struct mdoc_node *
+mdoc_node_alloc(const struct mdoc *mdoc)
{
struct mdoc_node *p;
- assert(mdoc->first);
- assert(mdoc->last);
- assert(mdoc->last->type == MDOC_BLOCK);
- assert(mdoc->last->data.block.tok == tok);
-
p = xcalloc(1, sizeof(struct mdoc_node));
- p->type = MDOC_HEAD;
- p->data.head.tok = tok;
- p->data.head.sz = paramsz;
- p->data.head.args = paramdup(paramsz, params);
+ p->sec = mdoc->lastsec;
- mdoc_node_append(mdoc, pos, p);
+ return(p);
}
-void
-mdoc_body_alloc(struct mdoc *mdoc, int pos, int tok)
+int
+mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, int tok)
{
struct mdoc_node *p;
assert(mdoc->first);
assert(mdoc->last);
- assert((mdoc->last->type == MDOC_BLOCK) ||
- (mdoc->last->type == MDOC_HEAD));
- if (mdoc->last->type == MDOC_BLOCK)
- assert(mdoc->last->data.block.tok == tok);
- else
- assert(mdoc->last->data.head.tok == tok);
- p = xcalloc(1, sizeof(struct mdoc_node));
+ p = mdoc_node_alloc(mdoc);
- p->type = MDOC_BODY;
- p->data.body.tok = tok;
+ p->line = line;
+ p->pos = pos;
+ p->type = MDOC_TAIL;
+ p->tok = tok;
- mdoc_node_append(mdoc, pos, p);
+ return(mdoc_node_append(mdoc, p));
}
-void
-mdoc_block_alloc(struct mdoc *mdoc, int pos, int tok,
- size_t argsz, const struct mdoc_arg *args)
+int
+mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, int tok)
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
+ assert(mdoc->first);
+ assert(mdoc->last);
- p->type = MDOC_BLOCK;
- p->data.block.tok = tok;
- p->data.block.argc = argsz;
- p->data.block.argv = argdup(argsz, args);
+ p = mdoc_node_alloc(mdoc);
- mdoc_node_append(mdoc, pos, p);
+ p->line = line;
+ p->pos = pos;
+ p->type = MDOC_HEAD;
+ p->tok = tok;
+
+ return(mdoc_node_append(mdoc, p));
}
-void
-mdoc_elem_alloc(struct mdoc *mdoc, int pos, int tok,
- size_t argsz, const struct mdoc_arg *args,
- size_t paramsz, const char **params)
+int
+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_ELEM;
- p->data.elem.tok = tok;
- p->data.elem.sz = paramsz;
- p->data.elem.args = paramdup(paramsz, params);
- p->data.elem.argc = argsz;
- p->data.elem.argv = argdup(argsz, args);
+ assert(mdoc->first);
+ assert(mdoc->last);
+
+ p = mdoc_node_alloc(mdoc);
+
+ p->line = line;
+ p->pos = pos;
+ p->type = MDOC_BODY;
+ p->tok = tok;
- mdoc_node_append(mdoc, pos, p);
+ return(mdoc_node_append(mdoc, p));
}
-void
-mdoc_word_alloc(struct mdoc *mdoc, int pos, const char *word)
+int
+mdoc_root_alloc(struct mdoc *mdoc)
{
struct mdoc_node *p;
- p = xcalloc(1, sizeof(struct mdoc_node));
- p->type = MDOC_TEXT;
- p->data.text.string = xstrdup(word);
+ p = mdoc_node_alloc(mdoc);
+
+ p->type = MDOC_ROOT;
- mdoc_node_append(mdoc, pos, p);
+ return(mdoc_node_append(mdoc, p));
}
-static void
-argfree(size_t sz, struct mdoc_arg *p)
+int
+mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
+ int tok, struct mdoc_arg *args)
{
- int i, j;
-
- if (0 == sz)
- return;
+ struct mdoc_node *p;
- 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);
-}
+ p = mdoc_node_alloc(mdoc);
+ p->pos = pos;
+ p->line = line;
+ p->type = MDOC_BLOCK;
+ p->tok = tok;
+ p->args = args;
-static void
-mdoc_elem_free(struct mdoc_elem *p)
-{
+ if (args)
+ (args->refcnt)++;
- paramfree(p->sz, p->args);
- argfree(p->argc, p->argv);
+ return(mdoc_node_append(mdoc, p));
}
-static void
-mdoc_block_free(struct mdoc_block *p)
+int
+mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
+ int tok, struct mdoc_arg *args)
{
+ struct mdoc_node *p;
- argfree(p->argc, p->argv);
-}
+ p = mdoc_node_alloc(mdoc);
+ p->line = line;
+ p->pos = pos;
+ p->type = MDOC_ELEM;
+ p->tok = tok;
+ p->args = args;
-static void
-mdoc_text_free(struct mdoc_text *p)
-{
+ if (args)
+ (args->refcnt)++;
- if (p->string)
- free(p->string);
+ return(mdoc_node_append(mdoc, p));
}
-static void
-mdoc_head_free(struct mdoc_head *p)
+int
+mdoc_word_alloc(struct mdoc *mdoc,
+ int line, int pos, const char *word)
{
+ struct mdoc_node *p;
+
+ p = mdoc_node_alloc(mdoc);
+
+ p->line = line;
+ p->pos = pos;
+ p->type = MDOC_TEXT;
+ p->string = xstrdup(word);
- paramfree(p->sz, p->args);
+ return(mdoc_node_append(mdoc, p));
}
mdoc_node_free(struct mdoc_node *p)
{
- 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;
- case (MDOC_HEAD):
- mdoc_head_free(&p->data.head);
- break;
- default:
- break;
- }
-
+ if (p->string)
+ free(p->string);
+ if (p->args)
+ mdoc_argv_free(p->args);
free(p);
}
-static void
+void
mdoc_node_freelist(struct mdoc_node *p)
{
}
-int
-mdoc_find(const struct mdoc *mdoc, const char *key)
+/*
+ * Parse free-form text, that is, a line that does not begin with the
+ * control character.
+ */
+static int
+parsetext(struct mdoc *mdoc, int line, char *buf)
{
- return(mdoc_tokhash_find(mdoc->htab, key));
+ if (SEC_PROLOGUE == mdoc->lastnamed)
+ return(mdoc_perr(mdoc, line, 0,
+ "text disallowed in prologue"));
+
+ if ( ! mdoc_word_alloc(mdoc, line, 0, buf))
+ return(0);
+
+ mdoc->next = MDOC_NEXT_SIBLING;
+ return(1);
}
-static void
-argcpy(struct mdoc_arg *dst, const struct mdoc_arg *src)
+static int
+macrowarn(struct mdoc *m, int ln, const char *buf)
{
- int i;
-
- 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]);
+ 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 struct mdoc_arg *
-argdup(size_t argsz, const struct mdoc_arg *args)
+
+/*
+ * Parse a macro line, that is, a line beginning with the control
+ * character.
+ */
+int
+parsemacro(struct mdoc *m, int ln, char *buf)
{
- struct mdoc_arg *pp;
- int i;
+ int i, c;
+ char mac[5];
- if (0 == argsz)
- return(NULL);
+ /* Comments and empties are quickly ignored. */
- pp = xcalloc((size_t)argsz, sizeof(struct mdoc_arg));
- for (i = 0; i < (int)argsz; i++)
- argcpy(&pp[i], &args[i]);
+ if (0 == buf[1])
+ return(1);
- return(pp);
-}
+ if (isspace((unsigned char)buf[1])) {
+ i = 2;
+ while (buf[i] && isspace((unsigned char)buf[i]))
+ i++;
+ if (0 == buf[i])
+ return(1);
+ return(mdoc_perr(m, ln, 1, "invalid syntax"));
+ }
+ if (buf[1] && '\\' == buf[1])
+ if (buf[2] && '\"' == buf[2])
+ return(1);
-static void
-paramfree(size_t sz, char **p)
-{
- int i;
+ /* Copy the first word into a nil-terminated buffer. */
- if (0 == sz)
- return;
+ for (i = 1; i < 5; i++) {
+ if (0 == (mac[i - 1] = buf[i]))
+ break;
+ else if (isspace((unsigned char)buf[i]))
+ break;
+ }
- assert(p);
- /* LINTED */
- for (i = 0; i < (int)sz; i++)
- free(p[i]);
- free(p);
-}
+ mac[i - 1] = 0;
+
+ if (i == 5 || i <= 2) {
+ if ( ! macrowarn(m, ln, mac))
+ goto err;
+ return(1);
+ }
+
+ if (MDOC_MAX == (c = mdoc_tokhash_find(m->htab, mac))) {
+ if ( ! macrowarn(m, ln, mac))
+ goto err;
+ return(1);
+ }
+ /* The macro is sane. Jump to the next word. */
-static char **
-paramdup(size_t sz, const char **p)
-{
- char **pp;
- int i;
+ while (buf[i] && isspace((unsigned char)buf[i]))
+ i++;
+
+ /* Begin recursive parse sequence. */
+
+ if ( ! mdoc_macro(m, c, ln, 1, &i, buf))
+ goto err;
- if (0 == sz)
- return(NULL);
+ return(1);
- pp = xcalloc(sz, sizeof(char *));
- for (i = 0; i < (int)sz; i++)
- pp[i] = xstrdup(p[i]);
+err: /* Error out. */
- return(pp);
+ m->flags |= MDOC_HALT;
+ return(0);
}
git.ckatri.com / mandoc.git / blobdiff