version 1.53, 2008/12/08 20:32:49 |
version 1.66, 2010/05/15 07:52:11 |
|
|
/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the |
* purpose with or without fee is hereby granted, provided that the above |
* above copyright notice and this permission notice appear in all |
* copyright notice and this permission notice appear in all copies. |
* copies. |
|
* |
* |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
* WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
* AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
*/ |
#include <sys/param.h> |
#ifdef HAVE_CONFIG_H |
#include <sys/types.h> |
#include "config.h" |
|
#endif |
|
|
#include <assert.h> |
|
#include <ctype.h> |
|
#include <err.h> |
|
#include <stdarg.h> |
|
#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
|
#include <string.h> |
|
#include <time.h> |
|
|
|
#include "libmdocml.h" |
|
#include "private.h" |
|
#include "roff.h" |
#include "roff.h" |
|
|
/* FIXME: First letters of quoted-text interpreted in rofffindtok. */ |
|
/* FIXME: `No' not implemented. */ |
|
/* TODO: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */ |
|
/* TODO: warn about empty lists. */ |
|
/* TODO: (warn) some sections need specific elements. */ |
|
/* TODO: (warn) NAME section has particular order. */ |
|
/* TODO: unify empty-content tags a la <br />. */ |
|
/* TODO: macros with a set number of arguments? */ |
|
/* TODO: validate Dt macro arguments. */ |
|
/* FIXME: Bl -diag supposed to ignore callable children. */ |
|
/* FIXME: Nm has newline when used in NAME section. */ |
|
|
|
struct roffnode { |
|
int tok; /* Token id. */ |
|
struct roffnode *parent; /* Parent (or NULL). */ |
|
}; |
|
|
|
struct rofftree { |
|
struct roffnode *last; /* Last parsed node. */ |
|
char *cur; /* Line start. */ |
|
struct tm tm; /* `Dd' results. */ |
|
char name[64]; /* `Nm' results. */ |
|
char os[64]; /* `Os' results. */ |
|
char title[64]; /* `Dt' results. */ |
|
enum roffmsec section; |
|
char volume[64]; /* `Dt' results. */ |
|
int state; |
|
#define ROFF_PRELUDE (1 << 1) /* In roff prelude. */ |
|
#define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */ |
|
#define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */ |
|
#define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */ |
|
#define ROFF_BODY (1 << 5) /* In roff body. */ |
|
struct roffcb cb; /* Callbacks. */ |
|
void *arg; /* Callbacks' arg. */ |
|
int csec; /* Current section. */ |
|
int asec; /* Thus-far sections. */ |
|
}; |
|
|
|
static struct roffnode *roffnode_new(int, struct rofftree *); |
|
static void roffnode_free(struct rofftree *); |
|
static void roff_warn(const struct rofftree *, |
|
const char *, char *, ...); |
|
static void roff_err(const struct rofftree *, |
|
const char *, char *, ...); |
|
static int roffpurgepunct(struct rofftree *, char **); |
|
static int roffscan(int, const int *); |
|
static int rofffindtok(const char *); |
|
static int rofffindarg(const char *); |
|
static int rofffindcallable(const char *); |
|
static int roffismsec(const char *); |
|
static int roffissec(const char **); |
|
static int roffispunct(const char *); |
|
static int roffisatt(const char *); |
|
static int roffchecksec(struct rofftree *, |
|
const char *, int); |
|
static int roffargs(const struct rofftree *, |
|
int, char *, char **); |
|
static int roffargok(int, int); |
|
static int roffnextopt(const struct rofftree *, |
|
int, char ***, char **); |
|
static int roffparseopts(struct rofftree *, int, |
|
char ***, int *, char **); |
|
static int roffcall(struct rofftree *, int, char **); |
|
static int roffexit(struct rofftree *, int); |
|
static int roffparse(struct rofftree *, char *); |
|
static int textparse(struct rofftree *, char *); |
|
static int roffdata(struct rofftree *, int, char *); |
|
static int roffspecial(struct rofftree *, int, |
|
const char *, const int *, |
|
const char **, size_t, char **); |
|
static int roffsetname(struct rofftree *, char **); |
|
|
|
#ifdef __linux__ |
|
extern size_t strlcat(char *, const char *, size_t); |
|
extern size_t strlcpy(char *, const char *, size_t); |
|
extern int vsnprintf(char *, size_t, |
|
const char *, va_list); |
|
extern char *strptime(const char *, const char *, |
|
struct tm *); |
|
#endif |
|
|
|
int |
|
roff_free(struct rofftree *tree, int flush) |
|
{ |
|
int error, t; |
|
struct roffnode *n; |
|
|
|
error = 0; |
|
|
|
if ( ! flush) |
|
goto end; |
|
|
|
error = 1; |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
roff_err(tree, NULL, "prelude never finished"); |
|
goto end; |
|
} else if ( ! (ROFFSec_NAME & tree->asec)) { |
|
roff_err(tree, NULL, "missing `NAME' section"); |
|
goto end; |
|
} else if ( ! (ROFFSec_NMASK & tree->asec)) |
|
roff_warn(tree, NULL, "missing suggested `NAME', " |
|
"`SYNOPSIS', `DESCRIPTION' sections"); |
|
|
|
for (n = tree->last; n; n = n->parent) { |
|
if (0 != tokens[n->tok].ctx) |
|
continue; |
|
roff_err(tree, NULL, "closing explicit scope `%s'", |
|
toknames[n->tok]); |
|
goto end; |
|
} |
|
|
|
while (tree->last) { |
|
t = tree->last->tok; |
|
if ( ! roffexit(tree, t)) |
|
goto end; |
|
} |
|
|
|
if ( ! (*tree->cb.rofftail)(tree->arg)) |
|
goto end; |
|
|
|
error = 0; |
|
|
|
end: |
|
|
|
while (tree->last) |
|
roffnode_free(tree); |
|
|
|
free(tree); |
|
|
|
return(error ? 0 : 1); |
|
} |
|
|
|
|
|
struct rofftree * |
|
roff_alloc(const struct roffcb *cb, void *args) |
|
{ |
|
struct rofftree *tree; |
|
|
|
assert(args); |
|
assert(cb); |
|
|
|
if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) |
|
err(1, "calloc"); |
|
|
|
tree->state = ROFF_PRELUDE; |
|
tree->arg = args; |
|
tree->section = ROFF_MSEC_MAX; |
|
|
|
(void)memcpy(&tree->cb, cb, sizeof(struct roffcb)); |
|
|
|
return(tree); |
|
} |
|
|
|
|
|
int |
|
roff_engine(struct rofftree *tree, char *buf) |
|
{ |
|
|
|
tree->cur = buf; |
|
assert(buf); |
|
|
|
if (0 == *buf) { |
|
roff_err(tree, buf, "blank line"); |
|
return(0); |
|
} else if ('.' != *buf) |
|
return(textparse(tree, buf)); |
|
|
|
return(roffparse(tree, buf)); |
|
} |
|
|
|
|
|
static int |
|
textparse(struct rofftree *tree, char *buf) |
|
{ |
|
char *bufp; |
|
|
|
/* TODO: literal parsing. */ |
|
|
|
if ( ! (ROFF_BODY & tree->state)) { |
|
roff_err(tree, buf, "data not in body"); |
|
return(0); |
|
} |
|
|
|
/* LINTED */ |
|
while (*buf) { |
|
while (*buf && isspace(*buf)) |
|
buf++; |
|
|
|
if (0 == *buf) |
|
break; |
|
|
|
bufp = buf++; |
|
|
|
while (*buf && ! isspace(*buf)) |
|
buf++; |
|
|
|
if (0 != *buf) { |
|
*buf++ = 0; |
|
if ( ! roffdata(tree, 1, bufp)) |
|
return(0); |
|
continue; |
|
} |
|
|
|
if ( ! roffdata(tree, 1, bufp)) |
|
return(0); |
|
break; |
|
} |
|
|
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffargs(const struct rofftree *tree, |
|
int tok, char *buf, char **argv) |
|
{ |
|
int i; |
|
char *p; |
|
|
|
assert(tok >= 0 && tok < ROFF_MAX); |
|
assert('.' == *buf); |
|
|
|
p = buf; |
|
|
|
/* |
|
* This is an ugly little loop. It parses a line into |
|
* space-delimited tokens. If a quote mark is encountered, a |
|
* token is alloted the entire quoted text. If whitespace is |
|
* escaped, it's included in the prior alloted token. |
|
*/ |
|
|
|
/* LINTED */ |
|
for (i = 0; *buf && i < ROFF_MAXLINEARG; i++) { |
|
if ('\"' == *buf) { |
|
argv[i] = ++buf; |
|
while (*buf && '\"' != *buf) |
|
buf++; |
|
if (0 == *buf) { |
|
roff_err(tree, argv[i], "unclosed " |
|
"quote in argument " |
|
"list for `%s'", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
} else { |
|
argv[i] = buf++; |
|
while (*buf) { |
|
if ( ! isspace(*buf)) { |
|
buf++; |
|
continue; |
|
} |
|
if (*(buf - 1) == '\\') { |
|
buf++; |
|
continue; |
|
} |
|
break; |
|
} |
|
if (0 == *buf) |
|
continue; |
|
} |
|
*buf++ = 0; |
|
while (*buf && isspace(*buf)) |
|
buf++; |
|
} |
|
|
|
assert(i > 0); |
|
if (ROFF_MAXLINEARG == i && *buf) { |
|
roff_err(tree, p, "too many arguments for `%s'", toknames |
|
[tok]); |
|
return(0); |
|
} |
|
|
|
argv[i] = NULL; |
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffscan(int tok, const int *tokv) |
|
{ |
|
|
|
if (NULL == tokv) |
|
return(1); |
|
|
|
for ( ; ROFF_MAX != *tokv; tokv++) |
|
if (tok == *tokv) |
|
return(1); |
|
|
|
return(0); |
|
} |
|
|
|
|
|
static int |
|
roffparse(struct rofftree *tree, char *buf) |
|
{ |
|
int tok, t; |
|
struct roffnode *n; |
|
char *argv[ROFF_MAXLINEARG]; |
|
char **argvp; |
|
|
|
if (0 != *buf && 0 != *(buf + 1) && 0 != *(buf + 2)) |
|
if (0 == strncmp(buf, ".\\\"", 3)) |
|
return(1); |
|
|
|
if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { |
|
roff_err(tree, buf, "bogus line macro"); |
|
return(0); |
|
} else if ( ! roffargs(tree, tok, buf, argv)) |
|
return(0); |
|
|
|
argvp = (char **)argv; |
|
|
|
/* |
|
* Prelude macros break some assumptions, so branch now. |
|
*/ |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
assert(NULL == tree->last); |
|
return(roffcall(tree, tok, argvp)); |
|
} |
|
|
|
assert(ROFF_BODY & tree->state); |
|
|
|
/* |
|
* First check that our possible parents and parent's possible |
|
* children are satisfied. |
|
*/ |
|
|
|
if (tree->last && ! roffscan |
|
(tree->last->tok, tokens[tok].parents)) { |
|
roff_err(tree, *argvp, "`%s' has invalid parent `%s'", |
|
toknames[tok], |
|
toknames[tree->last->tok]); |
|
return(0); |
|
} |
|
|
|
if (tree->last && ! roffscan |
|
(tok, tokens[tree->last->tok].children)) { |
|
roff_err(tree, *argvp, "`%s' is invalid child of `%s'", |
|
toknames[tok], |
|
toknames[tree->last->tok]); |
|
return(0); |
|
} |
|
|
|
/* |
|
* Branch if we're not a layout token. |
|
*/ |
|
|
|
if (ROFF_LAYOUT != tokens[tok].type) |
|
return(roffcall(tree, tok, argvp)); |
|
if (0 == tokens[tok].ctx) |
|
return(roffcall(tree, tok, argvp)); |
|
|
|
/* |
|
* First consider implicit-end tags, like as follows: |
|
* .Sh SECTION 1 |
|
* .Sh SECTION 2 |
|
* In this, we want to close the scope of the NAME section. If |
|
* there's an intermediary implicit-end tag, such as |
|
* .Sh SECTION 1 |
|
* .Ss Subsection 1 |
|
* .Sh SECTION 2 |
|
* then it must be closed as well. |
|
*/ |
|
|
|
if (tok == tokens[tok].ctx) { |
|
/* |
|
* First search up to the point where we must close. |
|
* If one doesn't exist, then we can open a new scope. |
|
*/ |
|
|
|
for (n = tree->last; n; n = n->parent) { |
|
assert(0 == tokens[n->tok].ctx || |
|
n->tok == tokens[n->tok].ctx); |
|
if (n->tok == tok) |
|
break; |
|
if (ROFF_SHALLOW & tokens[tok].flags) { |
|
n = NULL; |
|
break; |
|
} |
|
if (tokens[n->tok].ctx == n->tok) |
|
continue; |
|
roff_err(tree, *argv, "`%s' breaks `%s' scope", |
|
toknames[tok], toknames[n->tok]); |
|
return(0); |
|
} |
|
|
|
/* |
|
* Create a new scope, as no previous one exists to |
|
* close out. |
|
*/ |
|
|
|
if (NULL == n) |
|
return(roffcall(tree, tok, argvp)); |
|
|
|
/* |
|
* Close out all intermediary scoped blocks, then hang |
|
* the current scope from our predecessor's parent. |
|
*/ |
|
|
|
do { |
|
t = tree->last->tok; |
|
if ( ! roffexit(tree, t)) |
|
return(0); |
|
} while (t != tok); |
|
|
|
return(roffcall(tree, tok, argvp)); |
|
} |
|
|
|
/* |
|
* Now consider explicit-end tags, where we want to close back |
|
* to a specific tag. Example: |
|
* .Bl |
|
* .It Item. |
|
* .El |
|
* In this, the `El' tag closes out the scope of `Bl'. |
|
*/ |
|
|
|
assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx); |
|
|
|
/* LINTED */ |
|
for (n = tree->last; n; n = n->parent) |
|
if (n->tok != tokens[tok].ctx) { |
|
if (n->tok == tokens[n->tok].ctx) |
|
continue; |
|
roff_err(tree, *argv, "`%s' breaks `%s' scope", |
|
toknames[tok], toknames[n->tok]); |
|
return(0); |
|
} else |
|
break; |
|
|
|
|
|
if (NULL == n) { |
|
roff_err(tree, *argv, "`%s' has no starting tag `%s'", |
|
toknames[tok], |
|
toknames[tokens[tok].ctx]); |
|
return(0); |
|
} |
|
|
|
/* LINTED */ |
|
do { |
|
t = tree->last->tok; |
|
if ( ! roffexit(tree, t)) |
|
return(0); |
|
} while (t != tokens[tok].ctx); |
|
|
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
rofffindarg(const char *name) |
|
{ |
|
size_t i; |
|
|
|
/* FIXME: use a table, this is slow but ok for now. */ |
|
|
|
/* LINTED */ |
|
for (i = 0; i < ROFF_ARGMAX; i++) |
|
/* LINTED */ |
|
if (0 == strcmp(name, tokargnames[i])) |
|
return((int)i); |
|
|
|
return(ROFF_ARGMAX); |
|
} |
|
|
|
|
|
static int |
|
rofffindtok(const char *buf) |
|
{ |
|
char token[4]; |
|
int i; |
|
|
|
for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++) |
|
token[i] = *buf; |
|
|
|
if (i == 3) |
|
return(ROFF_MAX); |
|
|
|
token[i] = 0; |
|
|
|
/* FIXME: use a table, this is slow but ok for now. */ |
|
|
|
/* LINTED */ |
|
for (i = 0; i < ROFF_MAX; i++) |
|
/* LINTED */ |
|
if (0 == strcmp(toknames[i], token)) |
|
return((int)i); |
|
|
|
return(ROFF_MAX); |
|
} |
|
|
|
|
|
static int |
|
roffchecksec(struct rofftree *tree, const char *start, int sec) |
|
{ |
|
int prior; |
|
|
|
switch (sec) { |
|
case(ROFFSec_SYNOP): |
|
if ((prior = ROFFSec_NAME) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_DESC): |
|
if ((prior = ROFFSec_SYNOP) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_RETVAL): |
|
if ((prior = ROFFSec_DESC) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_ENV): |
|
if ((prior = ROFFSec_RETVAL) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_FILES): |
|
if ((prior = ROFFSec_ENV) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_EX): |
|
if ((prior = ROFFSec_FILES) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_DIAG): |
|
if ((prior = ROFFSec_EX) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_ERRS): |
|
if ((prior = ROFFSec_DIAG) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_SEEALSO): |
|
if ((prior = ROFFSec_ERRS) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_STAND): |
|
if ((prior = ROFFSec_SEEALSO) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_HIST): |
|
if ((prior = ROFFSec_STAND) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_AUTH): |
|
if ((prior = ROFFSec_HIST) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_CAVEATS): |
|
if ((prior = ROFFSec_AUTH) & tree->asec) |
|
return(1); |
|
break; |
|
case(ROFFSec_BUGS): |
|
if ((prior = ROFFSec_CAVEATS) & tree->asec) |
|
return(1); |
|
break; |
|
default: |
|
return(1); |
|
} |
|
|
|
roff_warn(tree, start, "section violates conventional order"); |
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffissec(const char **p) |
|
{ |
|
|
|
assert(*p); |
|
if (NULL != *(p + 1)) { |
|
if (NULL != *(p + 2)) |
|
return(ROFFSec_OTHER); |
|
if (0 == strcmp(*p, "RETURN") && |
|
0 == strcmp(*(p + 1), "VALUES")) |
|
return(ROFFSec_RETVAL); |
|
if (0 == strcmp(*p, "SEE") && |
|
0 == strcmp(*(p + 1), "ALSO")) |
|
return(ROFFSec_SEEALSO); |
|
return(ROFFSec_OTHER); |
|
} |
|
|
|
if (0 == strcmp(*p, "NAME")) |
|
return(ROFFSec_NAME); |
|
else if (0 == strcmp(*p, "SYNOPSIS")) |
|
return(ROFFSec_SYNOP); |
|
else if (0 == strcmp(*p, "DESCRIPTION")) |
|
return(ROFFSec_DESC); |
|
else if (0 == strcmp(*p, "ENVIRONMENT")) |
|
return(ROFFSec_ENV); |
|
else if (0 == strcmp(*p, "FILES")) |
|
return(ROFFSec_FILES); |
|
else if (0 == strcmp(*p, "EXAMPLES")) |
|
return(ROFFSec_EX); |
|
else if (0 == strcmp(*p, "DIAGNOSTICS")) |
|
return(ROFFSec_DIAG); |
|
else if (0 == strcmp(*p, "ERRORS")) |
|
return(ROFFSec_ERRS); |
|
else if (0 == strcmp(*p, "STANDARDS")) |
|
return(ROFFSec_STAND); |
|
else if (0 == strcmp(*p, "HISTORY")) |
|
return(ROFFSec_HIST); |
|
else if (0 == strcmp(*p, "AUTHORS")) |
|
return(ROFFSec_AUTH); |
|
else if (0 == strcmp(*p, "CAVEATS")) |
|
return(ROFFSec_CAVEATS); |
|
else if (0 == strcmp(*p, "BUGS")) |
|
return(ROFFSec_BUGS); |
|
|
|
return(ROFFSec_OTHER); |
|
} |
|
|
|
|
|
static int |
|
roffismsec(const char *p) |
|
{ |
|
|
|
if (0 == strcmp(p, "1")) |
|
return(ROFF_MSEC_1); |
|
else if (0 == strcmp(p, "2")) |
|
return(ROFF_MSEC_2); |
|
else if (0 == strcmp(p, "3")) |
|
return(ROFF_MSEC_3); |
|
else if (0 == strcmp(p, "3p")) |
|
return(ROFF_MSEC_3p); |
|
else if (0 == strcmp(p, "4")) |
|
return(ROFF_MSEC_4); |
|
else if (0 == strcmp(p, "5")) |
|
return(ROFF_MSEC_5); |
|
else if (0 == strcmp(p, "6")) |
|
return(ROFF_MSEC_6); |
|
else if (0 == strcmp(p, "7")) |
|
return(ROFF_MSEC_7); |
|
else if (0 == strcmp(p, "8")) |
|
return(ROFF_MSEC_8); |
|
else if (0 == strcmp(p, "9")) |
|
return(ROFF_MSEC_9); |
|
else if (0 == strcmp(p, "unass")) |
|
return(ROFF_MSEC_UNASS); |
|
else if (0 == strcmp(p, "draft")) |
|
return(ROFF_MSEC_DRAFT); |
|
else if (0 == strcmp(p, "paper")) |
|
return(ROFF_MSEC_PAPER); |
|
|
|
return(ROFF_MSEC_MAX); |
|
} |
|
|
|
|
|
static int |
|
roffisatt(const char *p) |
|
{ |
|
|
|
assert(p); |
|
if (0 == strcmp(p, "v1")) |
|
return(1); |
|
else if (0 == strcmp(p, "v2")) |
|
return(1); |
|
else if (0 == strcmp(p, "v3")) |
|
return(1); |
|
else if (0 == strcmp(p, "v6")) |
|
return(1); |
|
else if (0 == strcmp(p, "v7")) |
|
return(1); |
|
else if (0 == strcmp(p, "32v")) |
|
return(1); |
|
else if (0 == strcmp(p, "V.1")) |
|
return(1); |
|
else if (0 == strcmp(p, "V.4")) |
|
return(1); |
|
|
|
return(0); |
|
} |
|
|
|
|
|
static int |
|
roffispunct(const char *p) |
|
{ |
|
|
|
if (0 == *p) |
|
return(0); |
|
if (0 != *(p + 1)) |
|
return(0); |
|
|
|
switch (*p) { |
|
case('{'): |
|
/* FALLTHROUGH */ |
|
case('.'): |
|
/* FALLTHROUGH */ |
|
case(','): |
|
/* FALLTHROUGH */ |
|
case(';'): |
|
/* FALLTHROUGH */ |
|
case(':'): |
|
/* FALLTHROUGH */ |
|
case('?'): |
|
/* FALLTHROUGH */ |
|
case('!'): |
|
/* FALLTHROUGH */ |
|
case('('): |
|
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
/* FALLTHROUGH */ |
|
case('}'): |
|
return(1); |
|
default: |
|
break; |
|
} |
|
|
|
return(0); |
|
} |
|
|
|
|
|
static int |
|
rofffindcallable(const char *name) |
|
{ |
|
int c; |
|
|
|
if (ROFF_MAX == (c = rofffindtok(name))) |
|
return(ROFF_MAX); |
|
assert(c >= 0 && c < ROFF_MAX); |
|
return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX); |
|
} |
|
|
|
|
|
static struct roffnode * |
|
roffnode_new(int tokid, struct rofftree *tree) |
|
{ |
|
struct roffnode *p; |
|
|
|
if (NULL == (p = malloc(sizeof(struct roffnode)))) |
|
err(1, "malloc"); |
|
|
|
p->tok = tokid; |
|
p->parent = tree->last; |
|
tree->last = p; |
|
|
|
return(p); |
|
} |
|
|
|
|
|
static int |
|
roffargok(int tokid, int argid) |
|
{ |
|
const int *c; |
|
|
|
if (NULL == (c = tokens[tokid].args)) |
|
return(0); |
|
|
|
for ( ; ROFF_ARGMAX != *c; c++) |
|
if (argid == *c) |
|
return(1); |
|
|
|
return(0); |
|
} |
|
|
|
|
|
static void |
|
roffnode_free(struct rofftree *tree) |
|
{ |
|
struct roffnode *p; |
|
|
|
assert(tree->last); |
|
|
|
p = tree->last; |
|
tree->last = tree->last->parent; |
|
free(p); |
|
} |
|
|
|
|
|
static int |
|
roffspecial(struct rofftree *tree, int tok, const char *start, |
|
const int *argc, const char **argv, |
|
size_t sz, char **ordp) |
|
{ |
|
|
|
switch (tok) { |
|
case (ROFF_At): |
|
if (0 == sz) |
|
break; |
|
if (roffisatt(*ordp)) |
|
break; |
|
roff_err(tree, *ordp, "invalid `At' arg"); |
|
return(0); |
|
|
|
case (ROFF_Xr): |
|
if (2 == sz) { |
|
assert(ordp[1]); |
|
if (ROFF_MSEC_MAX != roffismsec(ordp[1])) |
|
break; |
|
roff_warn(tree, start, "invalid `%s' manual " |
|
"section", toknames[tok]); |
|
} |
|
/* FALLTHROUGH */ |
|
|
|
case (ROFF_Sx): |
|
/* FALLTHROUGH*/ |
|
case (ROFF_Fn): |
|
if (0 != sz) |
|
break; |
|
roff_err(tree, start, "`%s' expects at least " |
|
"one arg", toknames[tok]); |
|
return(0); |
|
|
|
case (ROFF_Nm): |
|
if (0 == sz) { |
|
if (0 == tree->name[0]) { |
|
roff_err(tree, start, "`Nm' not set"); |
|
return(0); |
|
} |
|
ordp[0] = tree->name; |
|
ordp[1] = NULL; |
|
} else if ( ! roffsetname(tree, ordp)) |
|
return(0); |
|
break; |
|
|
|
case (ROFF_Rv): |
|
/* FALLTHROUGH*/ |
|
case (ROFF_Ex): |
|
if (1 == sz) |
|
break; |
|
roff_err(tree, start, "`%s' expects one arg", |
|
toknames[tok]); |
|
return(0); |
|
|
|
case (ROFF_Sm): |
|
if (1 != sz) { |
|
roff_err(tree, start, "`Sm' expects one arg"); |
|
return(0); |
|
} |
|
|
|
if (0 != strcmp(ordp[0], "on") && |
|
0 != strcmp(ordp[0], "off")) { |
|
roff_err(tree, start, "`Sm' has invalid argument"); |
|
return(0); |
|
} |
|
break; |
|
|
|
case (ROFF_Ud): |
|
/* FALLTHROUGH */ |
|
case (ROFF_Ux): |
|
/* FALLTHROUGH */ |
|
case (ROFF_Bt): |
|
if (0 != sz) { |
|
roff_err(tree, start, "`%s' expects no args", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
return((*tree->cb.roffspecial)(tree->arg, tok, tree->cur, |
|
argc, argv, (const char **)ordp)); |
|
} |
|
|
|
|
|
static int |
|
roffexit(struct rofftree *tree, int tok) |
|
{ |
|
|
|
assert(tokens[tok].cb); |
|
return((*tokens[tok].cb)(tok, tree, NULL, ROFF_EXIT)); |
|
} |
|
|
|
|
|
static int |
|
roffcall(struct rofftree *tree, int tok, char **argv) |
|
{ |
|
int i; |
|
enum roffmsec c; |
|
|
|
if (NULL == tokens[tok].cb) { |
|
roff_err(tree, *argv, "`%s' is unsupported", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
if (tokens[tok].sections && ROFF_MSEC_MAX != tree->section) { |
|
i = 0; |
|
while (ROFF_MSEC_MAX != |
|
(c = tokens[tok].sections[i++])) |
|
if (c == tree->section) |
|
break; |
|
if (ROFF_MSEC_MAX == c) { |
|
roff_warn(tree, *argv, "`%s' is not a valid " |
|
"macro in this manual section", |
|
toknames[tok]); |
|
} |
|
} |
|
|
|
return((*tokens[tok].cb)(tok, tree, argv, ROFF_ENTER)); |
|
} |
|
|
|
|
|
static int |
|
roffnextopt(const struct rofftree *tree, int tok, |
|
char ***in, char **val) |
|
{ |
|
char *arg, **argv; |
|
int v; |
|
|
|
*val = NULL; |
|
argv = *in; |
|
assert(argv); |
|
|
|
if (NULL == (arg = *argv)) |
|
return(-1); |
|
if ('-' != *arg) |
|
return(-1); |
|
|
|
if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) { |
|
roff_warn(tree, arg, "argument-like parameter `%s' to " |
|
"`%s'", arg, toknames[tok]); |
|
return(-1); |
|
} |
|
|
|
if ( ! roffargok(tok, v)) { |
|
roff_warn(tree, arg, "invalid argument parameter `%s' to " |
|
"`%s'", tokargnames[v], toknames[tok]); |
|
return(-1); |
|
} |
|
|
|
if ( ! (ROFF_VALUE & tokenargs[v])) |
|
return(v); |
|
|
|
*in = ++argv; |
|
|
|
if (NULL == *argv) { |
|
roff_err(tree, arg, "empty value of `%s' for `%s'", |
|
tokargnames[v], toknames[tok]); |
|
return(ROFF_ARGMAX); |
|
} |
|
|
|
return(v); |
|
} |
|
|
|
|
|
static int |
|
roffpurgepunct(struct rofftree *tree, char **argv) |
|
{ |
|
int i; |
|
|
|
i = 0; |
|
while (argv[i]) |
|
i++; |
|
assert(i > 0); |
|
if ( ! roffispunct(argv[--i])) |
|
return(1); |
|
while (i >= 0 && roffispunct(argv[i])) |
|
i--; |
|
i++; |
|
|
|
/* LINTED */ |
|
while (argv[i]) |
|
if ( ! roffdata(tree, 0, argv[i++])) |
|
return(0); |
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffparseopts(struct rofftree *tree, int tok, |
|
char ***args, int *argc, char **argv) |
|
{ |
|
int i, c; |
|
char *v; |
|
|
|
i = 0; |
|
|
|
while (-1 != (c = roffnextopt(tree, tok, args, &v))) { |
|
if (ROFF_ARGMAX == c) |
|
return(0); |
|
|
|
argc[i] = c; |
|
argv[i] = v; |
|
i++; |
|
*args = *args + 1; |
|
} |
|
|
|
argc[i] = ROFF_ARGMAX; |
|
argv[i] = NULL; |
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffdata(struct rofftree *tree, int space, char *buf) |
|
{ |
|
|
|
if (0 == *buf) |
|
return(1); |
|
return((*tree->cb.roffdata)(tree->arg, |
|
space != 0, tree->cur, buf)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_Dd(ROFFCALL_ARGS) |
|
{ |
|
time_t t; |
|
char *p, buf[32]; |
|
|
|
if (ROFF_BODY & tree->state) { |
|
assert( ! (ROFF_PRELUDE & tree->state)); |
|
assert(ROFF_PRELUDE_Dd & tree->state); |
|
return(roff_text(tok, tree, argv, type)); |
|
} |
|
|
|
assert(ROFF_PRELUDE & tree->state); |
|
assert( ! (ROFF_BODY & tree->state)); |
|
|
|
if (ROFF_PRELUDE_Dd & tree->state) { |
|
roff_err(tree, *argv, "repeated `Dd' in prelude"); |
|
return(0); |
|
} else if (ROFF_PRELUDE_Dt & tree->state) { |
|
roff_err(tree, *argv, "out-of-order `Dd' in prelude"); |
|
return(0); |
|
} |
|
|
|
assert(NULL == tree->last); |
|
|
|
argv++; |
|
|
|
if (0 == strcmp(*argv, "$Mdocdate$")) { |
|
t = time(NULL); |
|
if (NULL == localtime_r(&t, &tree->tm)) |
|
err(1, "localtime_r"); |
|
tree->state |= ROFF_PRELUDE_Dd; |
|
return(1); |
|
} |
|
|
|
/* Build this from Mdocdate or raw date. */ |
|
|
|
buf[0] = 0; |
|
p = *argv; |
|
|
|
if (0 != strcmp(*argv, "$Mdocdate:")) { |
|
while (*argv) { |
|
if (strlcat(buf, *argv++, sizeof(buf)) |
|
< sizeof(buf)) |
|
continue; |
|
roff_err(tree, p, "bad `Dd' date"); |
|
return(0); |
|
} |
|
if (strptime(buf, "%b%d,%Y", &tree->tm)) { |
|
tree->state |= ROFF_PRELUDE_Dd; |
|
return(1); |
|
} |
|
roff_err(tree, *argv, "bad `Dd' date"); |
|
return(0); |
|
} |
|
|
|
argv++; |
|
while (*argv && **argv != '$') { |
|
if (strlcat(buf, *argv++, sizeof(buf)) |
|
>= sizeof(buf)) { |
|
roff_err(tree, p, "bad `Dd' Mdocdate"); |
|
return(0); |
|
} |
|
if (strlcat(buf, " ", sizeof(buf)) |
|
>= sizeof(buf)) { |
|
roff_err(tree, p, "bad `Dd' Mdocdate"); |
|
return(0); |
|
} |
|
} |
|
if (NULL == *argv) { |
|
roff_err(tree, p, "bad `Dd' Mdocdate"); |
|
return(0); |
|
} |
|
|
|
if (NULL == strptime(buf, "%b %d %Y", &tree->tm)) { |
|
roff_err(tree, *argv, "bad `Dd' Mdocdate"); |
|
return(0); |
|
} |
|
|
|
tree->state |= ROFF_PRELUDE_Dd; |
|
return(1); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_Dt(ROFFCALL_ARGS) |
|
{ |
|
|
|
if (ROFF_BODY & tree->state) { |
|
assert( ! (ROFF_PRELUDE & tree->state)); |
|
assert(ROFF_PRELUDE_Dt & tree->state); |
|
return(roff_text(tok, tree, argv, type)); |
|
} |
|
|
|
assert(ROFF_PRELUDE & tree->state); |
|
assert( ! (ROFF_BODY & tree->state)); |
|
|
|
if ( ! (ROFF_PRELUDE_Dd & tree->state)) { |
|
roff_err(tree, *argv, "out-of-order `Dt' in prelude"); |
|
return(0); |
|
} else if (ROFF_PRELUDE_Dt & tree->state) { |
|
roff_err(tree, *argv, "repeated `Dt' in prelude"); |
|
return(0); |
|
} |
|
|
|
argv++; |
|
if (NULL == *argv) { |
|
roff_err(tree, *argv, "`Dt' needs document title"); |
|
return(0); |
|
} else if (strlcpy(tree->title, *argv, sizeof(tree->title)) |
|
>= sizeof(tree->title)) { |
|
roff_err(tree, *argv, "`Dt' document title too long"); |
|
return(0); |
|
} |
|
|
|
argv++; |
|
if (NULL == *argv) { |
|
roff_err(tree, *argv, "`Dt' needs section"); |
|
return(0); |
|
} |
|
|
|
if (ROFF_MSEC_MAX == (tree->section = roffismsec(*argv))) { |
|
roff_err(tree, *argv, "bad `Dt' section"); |
|
return(0); |
|
} |
|
|
|
argv++; |
|
if (NULL == *argv) { |
|
tree->volume[0] = 0; |
|
} else if (strlcpy(tree->volume, *argv, sizeof(tree->volume)) |
|
>= sizeof(tree->volume)) { |
|
roff_err(tree, *argv, "`Dt' volume too long"); |
|
return(0); |
|
} |
|
|
|
assert(NULL == tree->last); |
|
tree->state |= ROFF_PRELUDE_Dt; |
|
|
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
roffsetname(struct rofftree *tree, char **ordp) |
|
{ |
|
|
|
assert(*ordp); |
|
|
|
/* FIXME: not all sections can set this. */ |
|
|
|
if (NULL != *(ordp + 1)) { |
|
roff_err(tree, *ordp, "too many `Nm' args"); |
|
return(0); |
|
} |
|
|
|
if (strlcpy(tree->name, *ordp, sizeof(tree->name)) |
|
>= sizeof(tree->name)) { |
|
roff_err(tree, *ordp, "`Nm' arg too long"); |
|
return(0); |
|
} |
|
|
|
return(1); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_Ns(ROFFCALL_ARGS) |
|
{ |
|
int j, c, first; |
|
char *morep[1]; |
|
|
|
first = (*argv++ == tree->cur); |
|
morep[0] = NULL; |
|
|
|
if ( ! roffspecial(tree, tok, *argv, NULL, NULL, 0, morep)) |
|
return(0); |
|
|
|
while (*argv) { |
|
if (ROFF_MAX != (c = rofffindcallable(*argv))) { |
|
if ( ! roffcall(tree, c, argv)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if ( ! roffispunct(*argv)) { |
|
if ( ! roffdata(tree, 1, *argv++)) |
|
return(0); |
|
continue; |
|
} |
|
|
|
for (j = 0; argv[j]; j++) |
|
if ( ! roffispunct(argv[j])) |
|
break; |
|
|
|
if (argv[j]) { |
|
if ( ! roffdata(tree, 0, *argv++)) |
|
return(0); |
|
continue; |
|
} |
|
|
|
break; |
|
} |
|
|
|
if ( ! first) |
|
return(1); |
|
|
|
return(roffpurgepunct(tree, argv)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_Os(ROFFCALL_ARGS) |
|
{ |
|
char *p; |
|
|
|
if (ROFF_BODY & tree->state) { |
|
assert( ! (ROFF_PRELUDE & tree->state)); |
|
assert(ROFF_PRELUDE_Os & tree->state); |
|
return(roff_text(tok, tree, argv, type)); |
|
} |
|
|
|
assert(ROFF_PRELUDE & tree->state); |
|
if ( ! (ROFF_PRELUDE_Dt & tree->state) || |
|
! (ROFF_PRELUDE_Dd & tree->state)) { |
|
roff_err(tree, *argv, "out-of-order `Os' in prelude"); |
|
return(0); |
|
} |
|
|
|
tree->os[0] = 0; |
|
|
|
p = *++argv; |
|
|
|
while (*argv) { |
|
if (strlcat(tree->os, *argv++, sizeof(tree->os)) |
|
< sizeof(tree->os)) |
|
continue; |
|
roff_err(tree, p, "`Os' value too long"); |
|
return(0); |
|
} |
|
|
|
if (0 == tree->os[0]) |
|
if (strlcpy(tree->os, "LOCAL", sizeof(tree->os)) |
|
>= sizeof(tree->os)) { |
|
roff_err(tree, p, "`Os' value too long"); |
|
return(0); |
|
} |
|
|
|
tree->state |= ROFF_PRELUDE_Os; |
|
tree->state &= ~ROFF_PRELUDE; |
|
tree->state |= ROFF_BODY; |
|
|
|
assert(ROFF_MSEC_MAX != tree->section); |
|
assert(0 != tree->title[0]); |
|
assert(0 != tree->os[0]); |
|
|
|
assert(NULL == tree->last); |
|
|
|
return((*tree->cb.roffhead)(tree->arg, &tree->tm, |
|
tree->os, tree->title, tree->section, |
|
tree->volume)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_layout(ROFFCALL_ARGS) |
|
{ |
|
int i, c, argcp[ROFF_MAXLINEARG]; |
|
char *argvp[ROFF_MAXLINEARG], *p; |
|
|
|
/* |
|
* The roff_layout function is for multi-line macros. A layout |
|
* has a start and end point, which is either declared |
|
* explicitly or implicitly. An explicit start and end is |
|
* embodied by `.Bl' and `.El', with the former being the start |
|
* and the latter being an end. The `.Sh' and `.Ss' tags, on |
|
* the other hand, are implicit. The scope of a layout is the |
|
* space between start and end. Explicit layouts may not close |
|
* out implicit ones and vice versa; implicit layouts may close |
|
* out other implicit layouts. |
|
*/ |
|
|
|
assert( ! (ROFF_CALLABLE & tokens[tok].flags)); |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
roff_err(tree, *argv, "bad `%s' in prelude", |
|
toknames[tok]); |
|
return(0); |
|
} else if (ROFF_EXIT == type) { |
|
roffnode_free(tree); |
|
if ( ! (*tree->cb.roffblkbodyout)(tree->arg, tok)) |
|
return(0); |
|
return((*tree->cb.roffblkout)(tree->arg, tok)); |
|
} |
|
|
|
assert( ! (ROFF_CALLABLE & tokens[tok].flags)); |
|
|
|
p = *argv++; |
|
|
|
if ( ! roffparseopts(tree, tok, &argv, argcp, argvp)) |
|
return(0); |
|
if (NULL == roffnode_new(tok, tree)) |
|
return(0); |
|
|
|
/* |
|
* Layouts have two parts: the layout body and header. The |
|
* layout header is the trailing text of the line macro, while |
|
* the layout body is everything following until termination. |
|
* Example: |
|
* |
|
* .It Fl f ) ; |
|
* Bar. |
|
* |
|
* ...Produces... |
|
* |
|
* <block> |
|
* <head> |
|
* <!Fl f!> ; |
|
* </head> |
|
* |
|
* <body> |
|
* Bar. |
|
* </body> |
|
* </block> |
|
*/ |
|
|
|
if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, |
|
(const char **)argvp)) |
|
return(0); |
|
|
|
/* +++ Begin run macro-specific hooks over argv. */ |
|
|
|
switch (tok) { |
|
case (ROFF_Sh): |
|
if (NULL == *argv) { |
|
roff_err(tree, *(argv - 1), |
|
"`Sh' expects arguments"); |
|
return(0); |
|
} |
|
tree->csec = roffissec((const char **)argv); |
|
if ( ! (ROFFSec_OTHER & tree->csec) && |
|
tree->asec & tree->csec) |
|
roff_warn(tree, *argv, "section repeated"); |
|
if (0 == tree->asec && ! (ROFFSec_NAME & tree->csec)) { |
|
roff_err(tree, *argv, "`NAME' section " |
|
"must be first"); |
|
return(0); |
|
} else if ( ! roffchecksec(tree, *argv, tree->csec)) |
|
return(0); |
|
|
|
tree->asec |= tree->csec; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
/* --- End run macro-specific hooks over argv. */ |
|
|
|
if (NULL == *argv) |
|
return((*tree->cb.roffblkbodyin) |
|
(tree->arg, tok, argcp, |
|
(const char **)argvp)); |
|
|
|
if ( ! (*tree->cb.roffblkheadin)(tree->arg, tok, argcp, |
|
(const char **)argvp)) |
|
return(0); |
|
|
|
/* |
|
* If there are no parsable parts, then write remaining tokens |
|
* into the layout header and exit. |
|
*/ |
|
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
|
i = 0; |
|
while (*argv) |
|
if ( ! roffdata(tree, i++, *argv++)) |
|
return(0); |
|
|
|
if ( ! (*tree->cb.roffblkheadout)(tree->arg, tok)) |
|
return(0); |
|
return((*tree->cb.roffblkbodyin)(tree->arg, tok, argcp, |
|
(const char **)argvp)); |
|
} |
|
|
|
/* |
|
* Parsable elements may be in the header (or be the header, for |
|
* that matter). Follow the regular parsing rules for these. |
|
*/ |
|
|
|
i = 0; |
|
while (*argv) { |
|
if (ROFF_MAX == (c = rofffindcallable(*argv))) { |
|
assert(tree->arg); |
|
if ( ! roffdata(tree, i++, *argv++)) |
|
return(0); |
|
continue; |
|
} |
|
if ( ! roffcall(tree, c, argv)) |
|
return(0); |
|
break; |
|
} |
|
|
|
/* |
|
* If there's trailing punctuation in the header, then write it |
|
* out now. Here we mimic the behaviour of a line-dominant text |
|
* macro. |
|
*/ |
|
|
|
if (NULL == *argv) { |
|
if ( ! (*tree->cb.roffblkheadout)(tree->arg, tok)) |
|
return(0); |
|
return((*tree->cb.roffblkbodyin) |
|
(tree->arg, tok, argcp, |
|
(const char **)argvp)); |
|
} |
|
|
|
/* |
|
* Expensive. Scan to the end of line then work backwards until |
|
* a token isn't punctuation. |
|
*/ |
|
|
|
if ( ! roffpurgepunct(tree, argv)) |
|
return(0); |
|
if ( ! (*tree->cb.roffblkheadout)(tree->arg, tok)) |
|
return(0); |
|
return((*tree->cb.roffblkbodyin)(tree->arg, |
|
tok, argcp, (const char **)argvp)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_ordered(ROFFCALL_ARGS) |
|
{ |
|
int i, first, c, argcp[ROFF_MAXLINEARG]; |
|
char *ordp[ROFF_MAXLINEARG], *p, |
|
*argvp[ROFF_MAXLINEARG]; |
|
|
|
/* |
|
* Ordered macros pass their arguments directly to handlers, |
|
* instead of considering it free-form text. Thus, the |
|
* following macro looks as follows: |
|
* |
|
* .Xr foo 1 ) , |
|
* |
|
* .Xr arg1 arg2 punctuation |
|
*/ |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
roff_err(tree, *argv, "`%s' disallowed in prelude", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
|
|
first = (*argv == tree->cur); |
|
p = *argv++; |
|
ordp[0] = NULL; |
|
|
|
if ( ! roffparseopts(tree, tok, &argv, argcp, argvp)) |
|
return(0); |
|
|
|
if (NULL == *argv) |
|
return(roffspecial(tree, tok, p, argcp, |
|
(const char **)argvp, 0, ordp)); |
|
|
|
i = 0; |
|
while (*argv && i < ROFF_MAXLINEARG) { |
|
c = ROFF_PARSED & tokens[tok].flags ? |
|
rofffindcallable(*argv) : ROFF_MAX; |
|
|
|
if (ROFF_MAX == c && ! roffispunct(*argv)) { |
|
ordp[i++] = *argv++; |
|
continue; |
|
} |
|
ordp[i] = NULL; |
|
|
|
if (ROFF_MAX == c) |
|
break; |
|
|
|
if ( ! roffspecial(tree, tok, p, argcp, |
|
(const char **)argvp, |
|
(size_t)i, ordp)) |
|
return(0); |
|
|
|
return(roffcall(tree, c, argv)); |
|
} |
|
|
|
assert(i != ROFF_MAXLINEARG); |
|
ordp[i] = NULL; |
|
|
|
if ( ! roffspecial(tree, tok, p, argcp, |
|
(const char**)argvp, |
|
(size_t)i, ordp)) |
|
return(0); |
|
|
|
/* FIXME: error if there's stuff after the punctuation. */ |
|
|
|
if ( ! first || NULL == *argv) |
|
return(1); |
|
|
|
return(roffpurgepunct(tree, argv)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_text(ROFFCALL_ARGS) |
|
{ |
|
int i, j, first, c, argcp[ROFF_MAXLINEARG]; |
|
char *argvp[ROFF_MAXLINEARG]; |
|
|
|
/* |
|
* Text macros are similar to special tokens, except that |
|
* arguments are instead flushed as pure data: we're only |
|
* concerned with the macro and its arguments. Example: |
|
* |
|
* .Fl v W f ; |
|
* |
|
* ...Produces... |
|
* |
|
* <fl> v W f </fl> ; |
|
*/ |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
roff_err(tree, *argv, "`%s' disallowed in prelude", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
|
|
first = (*argv == tree->cur); |
|
argv++; |
|
|
|
if ( ! roffparseopts(tree, tok, &argv, argcp, argvp)) |
|
return(0); |
|
if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, |
|
(const char **)argvp)) |
|
return(0); |
|
if (NULL == *argv) |
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
|
i = 0; |
|
while (*argv) |
|
if ( ! roffdata(tree, i++, *argv++)) |
|
return(0); |
|
|
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
} |
|
|
|
/* |
|
* Deal with punctuation. Ugly. Work ahead until we encounter |
|
* terminating punctuation. If we encounter it and all |
|
* subsequent tokens are punctuation, then stop processing (the |
|
* line-dominant macro will print these tokens after closure). |
|
* If the punctuation is followed by non-punctuation, then close |
|
* and re-open our scope, then continue. |
|
*/ |
|
|
|
i = 0; |
|
while (*argv) { |
|
if (ROFF_MAX != (c = rofffindcallable(*argv))) { |
|
if ( ! (ROFF_LSCOPE & tokens[tok].flags)) |
|
if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
|
return(0); |
|
|
|
if ( ! roffcall(tree, c, argv)) |
|
return(0); |
|
|
|
if (ROFF_LSCOPE & tokens[tok].flags) |
|
if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
|
return(0); |
|
|
|
break; |
|
} |
|
|
|
if ( ! roffispunct(*argv)) { |
|
if ( ! roffdata(tree, i++, *argv++)) |
|
return(0); |
|
continue; |
|
} |
|
|
|
i = 1; |
|
for (j = 0; argv[j]; j++) |
|
if ( ! roffispunct(argv[j])) |
|
break; |
|
|
|
if (argv[j]) { |
|
if (ROFF_LSCOPE & tokens[tok].flags) { |
|
if ( ! roffdata(tree, 0, *argv++)) |
|
return(0); |
|
continue; |
|
} |
|
if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
|
return(0); |
|
if ( ! roffdata(tree, 0, *argv++)) |
|
return(0); |
|
if ( ! (*tree->cb.roffin)(tree->arg, tok, |
|
argcp, |
|
(const char **)argvp)) |
|
return(0); |
|
|
|
i = 0; |
|
continue; |
|
} |
|
|
|
if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if (NULL == *argv) |
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
if ( ! first) |
|
return(1); |
|
|
|
return(roffpurgepunct(tree, argv)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_noop(ROFFCALL_ARGS) |
|
{ |
|
|
|
return(1); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
roff_depr(ROFFCALL_ARGS) |
|
{ |
|
|
|
roff_err(tree, *argv, "`%s' is deprecated", toknames[tok]); |
|
return(0); |
|
} |
|
|
|
|
|
static void |
|
roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...) |
|
{ |
|
va_list ap; |
|
char buf[128]; |
|
|
|
va_start(ap, fmt); |
|
(void)vsnprintf(buf, sizeof(buf), fmt, ap); |
|
va_end(ap); |
|
|
|
(*tree->cb.roffmsg)(tree->arg, |
|
ROFF_WARN, tree->cur, pos, buf); |
|
} |
|
|
|
|
|
static void |
|
roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...) |
|
{ |
|
va_list ap; |
|
char buf[128]; |
|
|
|
va_start(ap, fmt); |
|
(void)vsnprintf(buf, sizeof(buf), fmt, ap); |
|
va_end(ap); |
|
|
|
(*tree->cb.roffmsg)(tree->arg, |
|
ROFF_ERROR, tree->cur, pos, buf); |
|
} |
|
|
|