version 1.4, 2008/11/25 12:14:02 |
version 1.73, 2010/05/15 22:28:22 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2010 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. |
|
*/ |
*/ |
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
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#include <err.h> |
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#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
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#include <string.h> |
#include <string.h> |
#include <time.h> |
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#include "libmdocml.h" |
#include "mandoc.h" |
#include "private.h" |
#include "roff.h" |
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#define ROFF_MAXARG 10 |
enum rofft { |
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ROFF_de, |
enum roffd { |
ROFF_dei, |
ROFF_ENTER = 0, |
ROFF_am, |
ROFF_EXIT |
ROFF_ami, |
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ROFF_ig, |
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ROFF_close, |
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ROFF_MAX |
}; |
}; |
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/* FIXME: prolog roffs can be text roffs, too. */ |
struct roff { |
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struct roffnode *last; /* leaf of stack */ |
enum rofftype { |
mandocmsg msg; /* err/warn/fatal messages */ |
ROFF_COMMENT, |
void *data; /* privdata for messages */ |
ROFF_TEXT, |
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ROFF_LAYOUT |
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}; |
}; |
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#define ROFFCALL_ARGS \ |
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int tok, struct rofftree *tree, \ |
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const char *argv[], enum roffd type |
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struct rofftree; |
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struct rofftok { |
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int (*cb)(ROFFCALL_ARGS); |
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enum rofftype type; |
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int flags; |
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#define ROFF_NESTED (1 << 0) |
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#define ROFF_PARSED (1 << 1) |
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#define ROFF_CALLABLE (1 << 2) |
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#define ROFF_QUOTES (1 << 3) |
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}; |
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struct roffarg { |
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int tok; |
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int flags; |
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#define ROFF_VALUE (1 << 0) |
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}; |
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struct roffnode { |
struct roffnode { |
int tok; |
enum rofft tok; /* type of node */ |
struct roffnode *parent; |
struct roffnode *parent; /* up one in stack */ |
size_t line; |
char *end; /* custom end-token */ |
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int line; /* parse line */ |
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int col; /* parse col */ |
}; |
}; |
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struct rofftree { |
#define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
struct roffnode *last; |
enum rofft tok, /* tok of macro */ \ |
time_t date; |
char **bufp, /* input buffer */ \ |
char os[64]; |
size_t *szp, /* size of input buffer */ \ |
char title[64]; |
int ln, /* parse line */ \ |
char section[64]; |
int ppos /* current pos in buffer */ |
char volume[64]; |
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int state; |
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#define ROFF_PRELUDE (1 << 1) |
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#define ROFF_PRELUDE_Os (1 << 2) |
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#define ROFF_PRELUDE_Dt (1 << 3) |
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#define ROFF_PRELUDE_Dd (1 << 4) |
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#define ROFF_BODY (1 << 5) |
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roffin roffin; |
typedef enum rofferr (*roffproc)(ROFF_ARGS); |
roffblkin roffblkin; |
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roffout roffout; |
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roffblkout roffblkout; |
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struct md_mbuf *mbuf; /* NULL if !flush. */ |
struct roffmac { |
const struct md_args *args; |
const char *name; /* macro name */ |
const struct md_rbuf *rbuf; |
roffproc sub; /* child of control black */ |
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roffproc new; /* root of stack (type = ROFF_MAX) */ |
}; |
}; |
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static int roff_Dd(ROFFCALL_ARGS); |
static enum rofferr roff_new_close(ROFF_ARGS); |
static int roff_Dt(ROFFCALL_ARGS); |
static enum rofferr roff_new_ig(ROFF_ARGS); |
static int roff_Os(ROFFCALL_ARGS); |
static enum rofferr roff_sub_ig(ROFF_ARGS); |
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static int roff_layout(ROFFCALL_ARGS); |
const struct roffmac roffs[ROFF_MAX] = { |
static int roff_text(ROFFCALL_ARGS); |
{ "de", roff_sub_ig, roff_new_ig }, |
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{ "dei", roff_sub_ig, roff_new_ig }, |
static struct roffnode *roffnode_new(int, struct rofftree *); |
{ "am", roff_sub_ig, roff_new_ig }, |
static void roffnode_free(int, struct rofftree *); |
{ "ami", roff_sub_ig, roff_new_ig }, |
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{ "ig", roff_sub_ig, roff_new_ig }, |
static int rofffindtok(const char *); |
{ ".", NULL, roff_new_close }, |
static int rofffindarg(const char *); |
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static int rofffindcallable(const char *); |
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static int roffargs(int, char *, char **); |
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static int roffparse(struct rofftree *, char *, size_t); |
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static int textparse(const struct rofftree *, |
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const char *, size_t); |
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static const struct rofftok tokens[ROFF_MAX] = { |
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{ NULL, ROFF_COMMENT, 0 }, |
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{ roff_Dd, ROFF_TEXT, 0 }, /* Dd */ |
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{ roff_Dt, ROFF_TEXT, 0 }, /* Dt */ |
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{ roff_Os, ROFF_TEXT, 0 }, /* Os */ |
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{ roff_layout, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */ |
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{ roff_layout, ROFF_LAYOUT, ROFF_PARSED }, /* Ss XXX */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* Pp */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* D1 */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* Dl */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* Bd */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* Ed */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* Bl */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* El */ |
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{ roff_layout, ROFF_LAYOUT, 0 }, /* It */ |
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{ roff_text, ROFF_TEXT, ROFF_PARSED }, /* An */ |
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{ roff_text, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */ |
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}; |
}; |
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/* FIXME: multiple owners? */ |
static void roff_free1(struct roff *); |
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static enum rofft roff_hash_find(const char *); |
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static int roffnode_push(struct roff *, |
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enum rofft, int, int); |
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static void roffnode_pop(struct roff *); |
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static enum rofft roff_parse(const char *, int *); |
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static const struct roffarg tokenargs[ROFF_ARGMAX] = { |
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{ ROFF_An, 0 }, /* split */ |
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{ ROFF_An, 0 }, /* nosplit */ |
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{ ROFF_Bd, 0 }, /* ragged */ |
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{ ROFF_Bd, 0 }, /* unfilled */ |
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{ ROFF_Bd, 0 }, /* literal */ |
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{ ROFF_Bd, ROFF_VALUE }, /* file */ |
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{ ROFF_Bd, ROFF_VALUE }, /* offset */ |
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{ ROFF_Bl, 0 }, /* bullet */ |
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{ ROFF_Bl, 0 }, /* dash */ |
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{ ROFF_Bl, 0 }, /* hyphen */ |
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{ ROFF_Bl, 0 }, /* item */ |
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{ ROFF_Bl, 0 }, /* enum */ |
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{ ROFF_Bl, 0 }, /* tag */ |
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{ ROFF_Bl, 0 }, /* diag */ |
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{ ROFF_Bl, 0 }, /* hang */ |
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{ ROFF_Bl, 0 }, /* ohang */ |
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{ ROFF_Bl, 0 }, /* inset */ |
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{ ROFF_Bl, 0 }, /* column */ |
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}; |
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static const char *const toknames[ROFF_MAX] = ROFF_NAMES; |
/* |
static const char *const tokargnames[ROFF_ARGMAX] = ROFF_ARGNAMES; |
* Look up a roff token by its name. Returns ROFF_MAX if no macro by |
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* the nil-terminated string name could be found. |
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*/ |
int |
static enum rofft |
roff_free(struct rofftree *tree, int flush) |
roff_hash_find(const char *p) |
{ |
{ |
int error; |
int i; |
|
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assert(tree->mbuf); |
/* FIXME: make this be fast and efficient. */ |
if ( ! flush) |
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tree->mbuf = NULL; |
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/* LINTED */ |
for (i = 0; i < (int)ROFF_MAX; i++) |
while (tree->last) |
if (0 == strcmp(roffs[i].name, p)) |
if ( ! (*tokens[tree->last->tok].cb) |
return((enum rofft)i); |
(tree->last->tok, tree, NULL, ROFF_EXIT)) |
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/* Disallow flushing. */ |
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tree->mbuf = NULL; |
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error = tree->mbuf ? 0 : 1; |
return(ROFF_MAX); |
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if (tree->mbuf && (ROFF_PRELUDE & tree->state)) { |
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warnx("%s: prelude never finished", |
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tree->rbuf->name); |
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error = 1; |
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} |
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free(tree); |
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return(error ? 0 : 1); |
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} |
} |
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struct rofftree * |
/* |
roff_alloc(const struct md_args *args, struct md_mbuf *out, |
* Pop the current node off of the stack of roff instructions currently |
const struct md_rbuf *in, roffin textin, |
* pending. |
roffout textout, roffblkin blkin, roffblkout blkout) |
*/ |
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static void |
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roffnode_pop(struct roff *r) |
{ |
{ |
struct rofftree *tree; |
struct roffnode *p; |
|
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if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) { |
if (NULL == (p = r->last)) |
warn("malloc"); |
return; |
return(NULL); |
r->last = p->parent; |
} |
free(p); |
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tree->state = ROFF_PRELUDE; |
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tree->args = args; |
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tree->mbuf = out; |
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tree->rbuf = in; |
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tree->roffin = textin; |
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tree->roffout = textout; |
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tree->roffblkin = blkin; |
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tree->roffblkout = blkout; |
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return(tree); |
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} |
} |
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int |
/* |
roff_engine(struct rofftree *tree, char *buf, size_t sz) |
* Push a roff node onto the instruction stack. This must later be |
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* removed with roffnode_pop(). |
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*/ |
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static int |
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roffnode_push(struct roff *r, enum rofft tok, int line, int col) |
{ |
{ |
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struct roffnode *p; |
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if (0 == sz) { |
if (NULL == (p = calloc(1, sizeof(struct roffnode)))) { |
warnx("%s: blank line (line %zu)", |
(*r->msg)(MANDOCERR_MEM, r->data, line, col, NULL); |
tree->rbuf->name, |
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tree->rbuf->line); |
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return(0); |
return(0); |
} else if ('.' != *buf) |
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return(textparse(tree, buf, sz)); |
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return(roffparse(tree, buf, sz)); |
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} |
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static int |
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textparse(const struct rofftree *tree, const char *buf, size_t sz) |
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{ |
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if (NULL == tree->last) { |
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warnx("%s: unexpected text (line %zu)", |
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tree->rbuf->name, |
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tree->rbuf->line); |
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return(0); |
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} else if (NULL == tree->last->parent) { |
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warnx("%s: disallowed text (line %zu)", |
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tree->rbuf->name, |
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tree->rbuf->line); |
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return(0); |
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} |
} |
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/* Print text. */ |
p->tok = tok; |
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p->parent = r->last; |
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p->line = line; |
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p->col = col; |
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r->last = p; |
return(1); |
return(1); |
} |
} |
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static int |
static void |
roffargs(int tok, char *buf, char **argv) |
roff_free1(struct roff *r) |
{ |
{ |
int i; |
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(void)tok;/* FIXME: quotable strings? */ |
while (r->last) |
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roffnode_pop(r); |
assert(tok >= 0 && tok < ROFF_MAX); |
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assert('.' == *buf); |
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/* LINTED */ |
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for (i = 0; *buf && i < ROFF_MAXARG; i++) { |
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argv[i] = buf++; |
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while (*buf && ! isspace(*buf)) |
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buf++; |
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if (0 == *buf) { |
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continue; |
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} |
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*buf++ = 0; |
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while (*buf && isspace(*buf)) |
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buf++; |
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} |
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assert(i > 0); |
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if (i < ROFF_MAXARG) |
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argv[i] = NULL; |
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return(ROFF_MAXARG > i); |
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} |
} |
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static int |
void |
roffparse(struct rofftree *tree, char *buf, size_t sz) |
roff_reset(struct roff *r) |
{ |
{ |
int tok, t; |
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struct roffnode *node; |
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char *argv[ROFF_MAXARG]; |
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const char **argvp; |
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assert(sz > 0); |
roff_free1(r); |
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/* |
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* Extract the token identifier from the buffer. If there's no |
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* callback for the token (comment, etc.) then exit immediately. |
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* We don't do any error handling (yet), so if the token doesn't |
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* exist, die. |
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*/ |
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if (3 > sz) { |
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warnx("%s: malformed line (line %zu)", |
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tree->rbuf->name, |
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tree->rbuf->line); |
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return(0); |
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} else if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { |
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warnx("%s: unknown line token `%c%c' (line %zu)", |
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tree->rbuf->name, |
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*(buf + 1), *(buf + 2), |
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tree->rbuf->line); |
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return(0); |
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} else if (ROFF_COMMENT == tokens[tok].type) |
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/* Ignore comment tokens. */ |
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return(1); |
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if ( ! roffargs(tok, buf, argv)) { |
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warnx("%s: too many arguments to `%s' (line %zu)", |
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tree->rbuf->name, toknames[tok], |
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tree->rbuf->line); |
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return(0); |
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} |
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/* |
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* If this is a non-nestable layout token and we're below a |
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* token of the same type, then recurse upward to the token, |
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* closing out the interim scopes. |
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* |
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* If there's a nested token on the chain, then raise an error |
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* as nested tokens have corresponding "ending" tokens and we're |
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* breaking their scope. |
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*/ |
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node = NULL; |
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|
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if (ROFF_LAYOUT == tokens[tok].type && |
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! (ROFF_NESTED & tokens[tok].flags)) { |
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for (node = tree->last; node; node = node->parent) { |
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if (node->tok == tok) |
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break; |
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|
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/* Don't break nested scope. */ |
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|
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if ( ! (ROFF_NESTED & tokens[node->tok].flags)) |
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continue; |
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warnx("%s: scope of %s (line %zu) broken by " |
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"%s (line %zu)", |
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tree->rbuf->name, |
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toknames[tok], node->line, |
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toknames[node->tok], |
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tree->rbuf->line); |
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return(0); |
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} |
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} |
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if (node) { |
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assert(ROFF_LAYOUT == tokens[tok].type); |
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assert( ! (ROFF_NESTED & tokens[tok].flags)); |
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assert(node->tok == tok); |
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|
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/* Clear up to last scoped token. */ |
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/* LINTED */ |
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do { |
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t = tree->last->tok; |
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if ( ! (*tokens[tree->last->tok].cb) |
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(tree->last->tok, tree, NULL, ROFF_EXIT)) |
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return(0); |
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} while (t != tok); |
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} |
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/* Proceed with actual token processing. */ |
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|
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argvp = (const char **)&argv[1]; |
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return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
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} |
} |
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static int |
void |
rofffindarg(const char *name) |
roff_free(struct roff *r) |
{ |
{ |
size_t i; |
|
|
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/* FIXME: use a table, this is slow but ok for now. */ |
roff_free1(r); |
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free(r); |
/* LINTED */ |
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for (i = 0; i < ROFF_ARGMAX; i++) |
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/* LINTED */ |
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if (0 == strcmp(name, tokargnames[i])) |
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return((int)i); |
|
|
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return(ROFF_ARGMAX); |
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} |
} |
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static int |
struct roff * |
rofffindtok(const char *name) |
roff_alloc(const mandocmsg msg, void *data) |
{ |
{ |
size_t i; |
struct roff *r; |
|
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/* FIXME: use a table, this is slow but ok for now. */ |
if (NULL == (r = calloc(1, sizeof(struct roff)))) { |
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(*msg)(MANDOCERR_MEM, data, 0, 0, NULL); |
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return(0); |
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} |
|
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/* LINTED */ |
r->msg = msg; |
for (i = 0; i < ROFF_MAX; i++) |
r->data = data; |
/* LINTED */ |
return(r); |
if (0 == strncmp(name, toknames[i], 2)) |
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return((int)i); |
|
|
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return(ROFF_MAX); |
|
} |
} |
|
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|
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static int |
enum rofferr |
rofffindcallable(const char *name) |
roff_parseln(struct roff *r, int ln, char **bufp, size_t *szp) |
{ |
{ |
int c; |
enum rofft t; |
|
int ppos; |
|
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if (ROFF_MAX == (c = rofffindtok(name))) |
if (NULL != r->last) { |
return(ROFF_MAX); |
/* |
return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX); |
* If there's a node on the stack, then jump directly |
} |
* into its processing function. |
|
*/ |
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t = r->last->tok; |
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assert(roffs[t].sub); |
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return((*roffs[t].sub)(r, t, bufp, szp, ln, 0)); |
|
} else if ('.' != (*bufp)[0] && NULL == r->last) |
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/* Return when in free text without a context. */ |
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return(ROFF_CONT); |
|
|
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/* There's nothing on the stack: make us anew. */ |
|
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static struct roffnode * |
if (ROFF_MAX == (t = roff_parse(*bufp, &ppos))) |
roffnode_new(int tokid, struct rofftree *tree) |
return(ROFF_CONT); |
{ |
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struct roffnode *p; |
|
|
|
if (NULL == (p = malloc(sizeof(struct roffnode)))) { |
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warn("malloc"); |
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return(NULL); |
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} |
|
|
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p->line = tree->rbuf->line; |
assert(roffs[t].new); |
p->tok = tokid; |
return((*roffs[t].new)(r, t, bufp, szp, ln, ppos)); |
p->parent = tree->last; |
|
tree->last = p; |
|
return(p); |
|
} |
} |
|
|
|
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static void |
/* |
roffnode_free(int tokid, struct rofftree *tree) |
* Parse a roff node's type from the input buffer. This must be in the |
|
* form of ".foo xxx" in the usual way. |
|
*/ |
|
static enum rofft |
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roff_parse(const char *buf, int *pos) |
{ |
{ |
struct roffnode *p; |
int j; |
|
char mac[5]; |
|
enum rofft t; |
|
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assert(tree->last); |
assert('.' == buf[0]); |
assert(tree->last->tok == tokid); |
*pos = 1; |
|
|
p = tree->last; |
while (buf[*pos] && (' ' == buf[*pos] || '\t' == buf[*pos])) |
tree->last = tree->last->parent; |
(*pos)++; |
free(p); |
|
} |
|
|
|
|
if ('\0' == buf[*pos]) |
|
return(ROFF_MAX); |
|
|
/* ARGSUSED */ |
for (j = 0; j < 4; j++, (*pos)++) |
static int |
if ('\0' == (mac[j] = buf[*pos])) |
roff_Dd(ROFFCALL_ARGS) |
break; |
{ |
else if (' ' == buf[*pos]) |
|
break; |
|
|
if (ROFF_BODY & tree->state) { |
if (j == 4 || j < 1) |
assert( ! (ROFF_PRELUDE & tree->state)); |
return(ROFF_MAX); |
assert(ROFF_PRELUDE_Dd & tree->state); |
|
return(roff_text(tok, tree, argv, type)); |
|
} |
|
|
|
assert(ROFF_PRELUDE & tree->state); |
mac[j] = '\0'; |
assert( ! (ROFF_BODY & tree->state)); |
|
|
|
if (ROFF_PRELUDE_Dd & tree->state || |
if (ROFF_MAX == (t = roff_hash_find(mac))) |
ROFF_PRELUDE_Dt & tree->state) { |
return(t); |
warnx("%s: prelude `Dd' out-of-order (line %zu)", |
|
tree->rbuf->name, tree->rbuf->line); |
|
return(0); |
|
} |
|
|
|
/* TODO: parse date. */ |
while (buf[*pos] && ' ' == buf[*pos]) |
|
(*pos)++; |
|
|
assert(NULL == tree->last); |
return(t); |
tree->state |= ROFF_PRELUDE_Dd; |
|
|
|
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_Dt(ROFFCALL_ARGS) |
roff_sub_ig(ROFF_ARGS) |
{ |
{ |
|
int i, j; |
|
|
if (ROFF_BODY & tree->state) { |
/* Ignore free-text lines. */ |
assert( ! (ROFF_PRELUDE & tree->state)); |
|
assert(ROFF_PRELUDE_Dt & tree->state); |
|
return(roff_text(tok, tree, argv, type)); |
|
} |
|
|
|
assert(ROFF_PRELUDE & tree->state); |
if ('.' != (*bufp)[ppos]) |
assert( ! (ROFF_BODY & tree->state)); |
return(ROFF_IGN); |
|
|
if ( ! (ROFF_PRELUDE_Dd & tree->state) || |
if (r->last->end) { |
(ROFF_PRELUDE_Dt & tree->state)) { |
i = ppos + 1; |
warnx("%s: prelude `Dt' out-of-order (line %zu)", |
|
tree->rbuf->name, tree->rbuf->line); |
|
return(0); |
|
} |
|
|
|
/* TODO: parse date. */ |
while ((*bufp)[i] && ' ' == (*bufp)[i]) |
|
i++; |
|
|
assert(NULL == tree->last); |
for (j = 0; r->last->end[j]; i++, j++) |
tree->state |= ROFF_PRELUDE_Dt; |
if ((*bufp)[i] != r->last->end[j]) |
|
return(ROFF_IGN); |
|
|
return(1); |
if (r->last->end[j]) |
} |
return(ROFF_IGN); |
|
if ((*bufp)[i] && ' ' != (*bufp)[i]) |
|
return(ROFF_IGN); |
|
|
|
while (' ' == (*bufp)[i]) |
|
i++; |
|
|
/* ARGSUSED */ |
} else if (ROFF_close != roff_parse(*bufp, &i)) |
static int |
return(ROFF_IGN); |
roff_Os(ROFFCALL_ARGS) |
|
{ |
|
|
|
if (ROFF_EXIT == type) { |
roffnode_pop(r); |
assert(ROFF_PRELUDE_Os & tree->state); |
|
return(roff_layout(tok, tree, argv, type)); |
|
} else 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 ('\0' == (*bufp)[i]) |
if ( ! (ROFF_PRELUDE_Dt & tree->state) || |
return(ROFF_IGN); |
! (ROFF_PRELUDE_Dd & tree->state)) { |
if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, i, NULL)) |
warnx("%s: prelude `Os' out-of-order (line %zu)", |
return(ROFF_ERR); |
tree->rbuf->name, tree->rbuf->line); |
|
return(0); |
|
} |
|
|
|
/* TODO: extract OS. */ |
return(ROFF_IGN); |
|
|
tree->state |= ROFF_PRELUDE_Os; |
|
tree->state &= ~ROFF_PRELUDE; |
|
tree->state |= ROFF_BODY; |
|
|
|
assert(NULL == tree->last); |
|
|
|
return(roff_layout(tok, tree, argv, type)); |
|
} |
} |
|
|
|
|
/* ARGUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roffnextopt(const char ***in, char **val) |
roff_new_close(ROFF_ARGS) |
{ |
{ |
const char *arg, **argv; |
|
int v; |
|
|
|
*val = NULL; |
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
argv = *in; |
return(ROFF_ERR); |
assert(argv); |
|
|
|
if (NULL == (arg = *argv)) |
return(ROFF_IGN); |
return(-1); |
|
if ('-' != *arg) |
|
return(-1); |
|
if (ROFF_ARGMAX == (v = rofffindarg(&arg[1]))) |
|
return(-1); |
|
if ( ! (ROFF_VALUE & tokenargs[v].flags)) |
|
return(v); |
|
|
|
*in = ++argv; |
|
|
|
/* FIXME: what if this looks like a roff token or argument? */ |
|
|
|
return(*argv ? v : ROFF_ARGMAX); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_layout(ROFFCALL_ARGS) |
roff_new_ig(ROFF_ARGS) |
{ |
{ |
int i, c, argcp[ROFF_MAXARG]; |
int i; |
char *v, *argvp[ROFF_MAXARG]; |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
if ( ! roffnode_push(r, tok, ln, ppos)) |
warnx("%s: macro `%s' called in prelude (line %zu)", |
return(ROFF_ERR); |
tree->rbuf->name, toknames[tok], |
|
tree->rbuf->line); |
|
return(0); |
|
} |
|
|
|
if (ROFF_EXIT == type) { |
if (ROFF_ig != tok) { |
roffnode_free(tok, tree); |
while ((*bufp)[ppos] && ' ' != (*bufp)[ppos]) |
return((*tree->roffblkout)(tok)); |
ppos++; |
} |
while (' ' == (*bufp)[ppos]) |
|
ppos++; |
i = 0; |
|
while (-1 != (c = roffnextopt(&argv, &v))) { |
|
if (ROFF_ARGMAX == c) { |
|
warnx("%s: error parsing `%s' args (line %zu)", |
|
tree->rbuf->name, |
|
toknames[tok], |
|
tree->rbuf->line); |
|
return(0); |
|
} |
|
argcp[i] = c; |
|
argvp[i] = v; |
|
argv++; |
|
} |
} |
|
|
if (NULL == roffnode_new(tok, tree)) |
i = (int)ppos; |
return(0); |
|
|
|
if ( ! (*tree->roffin)(tok, argcp, argvp)) |
while ((*bufp)[i] && ' ' != (*bufp)[i]) |
return(0); |
i++; |
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
if (i == (int)ppos) |
/* TODO: print all tokens. */ |
return(ROFF_IGN); |
|
|
if ( ! ((*tree->roffout)(tok))) |
if ((*bufp)[i]) |
return(0); |
if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, i, NULL)) |
return((*tree->roffblkin)(tok)); |
return(ROFF_ERR); |
} |
|
|
|
while (*argv) { |
/* |
if (2 >= strlen(*argv) && ROFF_MAX != |
* If the macro has arguments, the first argument (up to the |
(c = rofffindcallable(*argv))) |
* next whitespace) is interpreted as an argument marking the |
if ( ! (*tokens[c].cb)(c, tree, |
* macro close. Thus, `.ig foo' will close at `.foo'. |
argv + 1, ROFF_ENTER)) |
* |
return(0); |
* NOTE: the closing macro `.foo' in the above case is not |
|
* allowed to have leading spaces with old groff! Thus `.foo' |
|
* != `. foo'. Oh yeah, everything after the `.foo' is lost. |
|
* Merry fucking Christmas. |
|
*/ |
|
|
/* TODO: print token. */ |
r->last->end = malloc((size_t)(i - ppos) + 1); |
argv++; |
if (NULL == r->last->end) { |
|
(*r->msg)(MANDOCERR_MEM, r->data, ln, ppos, NULL); |
|
return(ROFF_ERR); |
} |
} |
|
|
if ( ! ((*tree->roffout)(tok))) |
memcpy(r->last->end, &(*bufp)[ppos], (size_t)(i - ppos)); |
return(0); |
r->last->end[i - ppos] = '\0'; |
|
|
return((*tree->roffblkin)(tok)); |
return(ROFF_IGN); |
} |
} |
|
|
|
|
/* ARGSUSED */ |
int |
static int |
roff_endparse(struct roff *r) |
roff_text(ROFFCALL_ARGS) |
|
{ |
{ |
int i, c, argcp[ROFF_MAXARG]; |
|
char *v, *argvp[ROFF_MAXARG]; |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
if (NULL == r->last) |
warnx("%s: macro `%s' called in prelude (line %zu)", |
return(1); |
tree->rbuf->name, toknames[tok], |
return((*r->msg)(MANDOCERR_SCOPEEXIT, r->data, |
tree->rbuf->line); |
r->last->line, r->last->col, NULL)); |
return(0); |
|
} |
|
|
|
i = 0; |
|
while (-1 != (c = roffnextopt(&argv, &v))) { |
|
if (ROFF_ARGMAX == c) { |
|
warnx("%s: error parsing `%s' args (line %zu)", |
|
tree->rbuf->name, |
|
toknames[tok], |
|
tree->rbuf->line); |
|
return(0); |
|
} |
|
argcp[i] = c; |
|
argvp[i] = v; |
|
argv++; |
|
} |
|
|
|
if ( ! (*tree->roffin)(tok, argcp, argvp)) |
|
return(0); |
|
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
|
/* TODO: print all tokens. */ |
|
return((*tree->roffout)(tok)); |
|
} |
|
|
|
while (*argv) { |
|
if (2 >= strlen(*argv) && ROFF_MAX != |
|
(c = rofffindcallable(*argv))) |
|
if ( ! (*tokens[c].cb)(c, tree, |
|
argv + 1, ROFF_ENTER)) |
|
return(0); |
|
|
|
/* TODO: print token. */ |
|
argv++; |
|
} |
|
|
|
return((*tree->roffout)(tok)); |
|
} |
} |