version 1.21, 2008/11/30 18:50:44 |
version 1.83, 2010/05/24 22:25:58 |
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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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*/ |
*/ |
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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 <stdarg.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> |
#include <stdio.h> |
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#include "libmdocml.h" |
#include "mandoc.h" |
#include "private.h" |
#include "roff.h" |
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/* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */ |
#define RSTACK_MAX 128 |
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/* FIXME: warn about "X section only" macros. */ |
#define ROFF_CTL(c) \ |
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('.' == (c) || '\'' == (c)) |
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/* FIXME: warn about empty lists. */ |
enum rofft { |
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ROFF_am, |
/* FIXME: roff_layout and roff_text have identical-ish lower bodies. */ |
ROFF_ami, |
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ROFF_am1, |
/* FIXME: NAME section needs specific elements. */ |
ROFF_de, |
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ROFF_dei, |
#define ROFF_MAXARG 32 |
ROFF_de1, |
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ROFF_ds, |
enum roffd { |
ROFF_el, |
ROFF_ENTER = 0, |
ROFF_ie, |
ROFF_EXIT |
ROFF_if, |
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ROFF_ig, |
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ROFF_rm, |
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ROFF_tr, |
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ROFF_cblock, |
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ROFF_ccond, |
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ROFF_MAX |
}; |
}; |
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enum rofftype { |
enum roffrule { |
ROFF_COMMENT, |
ROFFRULE_ALLOW, |
ROFF_TEXT, |
ROFFRULE_DENY |
ROFF_LAYOUT, |
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ROFF_SPECIAL |
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}; |
}; |
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#define ROFFCALL_ARGS \ |
struct roff { |
int tok, struct rofftree *tree, \ |
struct roffnode *last; /* leaf of stack */ |
char *argv[], enum roffd type |
mandocmsg msg; /* err/warn/fatal messages */ |
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void *data; /* privdata for messages */ |
struct rofftree; |
enum roffrule rstack[RSTACK_MAX]; /* stack of !`ie' rules */ |
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int rstackpos; /* position in rstack */ |
struct rofftok { |
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int (*cb)(ROFFCALL_ARGS); /* Callback. */ |
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const int *args; /* Args (or NULL). */ |
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const int *parents; |
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const int *children; |
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int ctx; |
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enum rofftype type; /* Type of macro. */ |
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int flags; |
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#define ROFF_PARSED (1 << 0) /* "Parsed". */ |
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#define ROFF_CALLABLE (1 << 1) /* "Callable". */ |
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#define ROFF_SHALLOW (1 << 2) /* Nesting block. */ |
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}; |
}; |
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struct roffarg { |
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int flags; |
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#define ROFF_VALUE (1 << 0) /* Has a value. */ |
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}; |
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struct roffnode { |
struct roffnode { |
int tok; /* Token id. */ |
enum rofft tok; /* type of node */ |
struct roffnode *parent; /* Parent (or NULL). */ |
struct roffnode *parent; /* up one in stack */ |
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int line; /* parse line */ |
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int col; /* parse col */ |
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char *end; /* end-rules: custom token */ |
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int endspan; /* end-rules: next-line or infty */ |
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enum roffrule rule; /* current evaluation rule */ |
}; |
}; |
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struct rofftree { |
#define ROFF_ARGS struct roff *r, /* parse ctx */ \ |
struct roffnode *last; /* Last parsed node. */ |
enum rofft tok, /* tok of macro */ \ |
char *cur; |
char **bufp, /* input buffer */ \ |
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size_t *szp, /* size of input buffer */ \ |
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int ln, /* parse line */ \ |
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int ppos, /* original pos in buffer */ \ |
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int pos, /* current pos in buffer */ \ |
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int *offs /* reset offset of buffer data */ |
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time_t date; /* `Dd' results. */ |
typedef enum rofferr (*roffproc)(ROFF_ARGS); |
char os[64]; /* `Os' results. */ |
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char title[64]; /* `Dt' results. */ |
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char section[64]; /* `Dt' results. */ |
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char volume[64]; /* `Dt' results. */ |
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int state; |
struct roffmac { |
#define ROFF_PRELUDE (1 << 1) /* In roff prelude. */ |
const char *name; /* macro name */ |
#define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */ |
roffproc proc; /* process new macro */ |
#define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */ |
roffproc text; /* process as child text of macro */ |
#define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */ |
roffproc sub; /* process as child of macro */ |
#define ROFF_BODY (1 << 5) /* In roff body. */ |
int flags; |
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#define ROFFMAC_STRUCT (1 << 0) /* always interpret */ |
struct roffcb cb; |
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void *arg; |
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}; |
}; |
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static int roff_Dd(ROFFCALL_ARGS); |
static enum rofferr roff_block(ROFF_ARGS); |
static int roff_Dt(ROFFCALL_ARGS); |
static enum rofferr roff_block_text(ROFF_ARGS); |
static int roff_Os(ROFFCALL_ARGS); |
static enum rofferr roff_block_sub(ROFF_ARGS); |
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static enum rofferr roff_cblock(ROFF_ARGS); |
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static enum rofferr roff_ccond(ROFF_ARGS); |
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static enum rofferr roff_cond(ROFF_ARGS); |
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static enum rofferr roff_cond_text(ROFF_ARGS); |
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static enum rofferr roff_cond_sub(ROFF_ARGS); |
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static enum rofferr roff_line(ROFF_ARGS); |
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static int roff_layout(ROFFCALL_ARGS); |
const struct roffmac roffs[ROFF_MAX] = { |
static int roff_text(ROFFCALL_ARGS); |
{ "am", roff_block, roff_block_text, roff_block_sub, 0 }, |
static int roff_comment(ROFFCALL_ARGS); |
{ "ami", roff_block, roff_block_text, roff_block_sub, 0 }, |
static int roff_close(ROFFCALL_ARGS); |
{ "am1", roff_block, roff_block_text, roff_block_sub, 0 }, |
static int roff_special(ROFFCALL_ARGS); |
{ "de", roff_block, roff_block_text, roff_block_sub, 0 }, |
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{ "dei", roff_block, roff_block_text, roff_block_sub, 0 }, |
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{ "de1", roff_block, roff_block_text, roff_block_sub, 0 }, |
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{ "ds", roff_line, NULL, NULL, 0 }, |
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{ "el", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, |
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{ "ie", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, |
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{ "if", roff_cond, roff_cond_text, roff_cond_sub, ROFFMAC_STRUCT }, |
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{ "ig", roff_block, roff_block_text, roff_block_sub, 0 }, |
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{ "rm", roff_line, NULL, NULL, 0 }, |
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{ "tr", roff_line, NULL, NULL, 0 }, |
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{ ".", roff_cblock, NULL, NULL, 0 }, |
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{ "\\}", roff_ccond, NULL, NULL, 0 }, |
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}; |
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static struct roffnode *roffnode_new(int, struct rofftree *); |
static void roff_free1(struct roff *); |
static void roffnode_free(struct rofftree *); |
static enum rofft roff_hash_find(const char *); |
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static void roffnode_cleanscope(struct roff *); |
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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 void roff_warn(const struct rofftree *, |
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const char *, char *, ...); |
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static void roff_err(const struct rofftree *, |
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const char *, char *, ...); |
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static int roffscan(int, const int *); |
/* |
static int rofffindtok(const char *); |
* Look up a roff token by its name. Returns ROFF_MAX if no macro by |
static int rofffindarg(const char *); |
* the nil-terminated string name could be found. |
static int rofffindcallable(const char *); |
*/ |
static int roffargs(const struct rofftree *, |
static enum rofft |
int, char *, char **); |
roff_hash_find(const char *p) |
static int roffargok(int, int); |
{ |
static int roffnextopt(const struct rofftree *, |
int i; |
int, char ***, char **); |
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static int roffparse(struct rofftree *, char *); |
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static int textparse(const struct rofftree *, char *); |
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/* FIXME: make this be fast and efficient. */ |
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static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit, |
for (i = 0; i < (int)ROFF_MAX; i++) |
ROFF_ARGMAX }; |
if (0 == strcmp(roffs[i].name, p)) |
static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled, |
return((enum rofft)i); |
ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled, |
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ROFF_Compact, ROFF_ARGMAX }; |
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static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX }; |
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static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX }; |
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static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX }; |
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static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash, |
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ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag, |
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ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset, |
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ROFF_Width, ROFF_Compact, ROFF_ARGMAX }; |
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static const int roffarg_St[] = { |
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ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96, |
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ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1, |
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ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95, |
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ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95, |
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ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1, |
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ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC, |
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ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3, |
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ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5, |
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ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0, |
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ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4, |
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ROFF_ARGMAX }; |
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static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX }; |
return(ROFF_MAX); |
static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX }; |
} |
static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX }; |
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static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B, |
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ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P, |
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ROFF__R, ROFF__T, ROFF__V, ROFF_MAX }; |
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static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; |
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static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX }; |
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static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX }; |
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static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX }; |
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static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX }; |
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/* Table of all known tokens. */ |
/* |
static const struct rofftok tokens[ROFF_MAX] = { |
* Pop the current node off of the stack of roff instructions currently |
{roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */ |
* pending. |
{ roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */ |
*/ |
{ roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */ |
static void |
{ roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Os */ |
roffnode_pop(struct roff *r) |
{ roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, 0 }, /* Sh */ |
{ |
{ roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, 0 }, /* Ss */ |
struct roffnode *p; |
{ roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */ |
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{ roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */ |
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{ roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */ |
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{ roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */ |
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{ roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */ |
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{ roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_PARSED | ROFF_SHALLOW }, /* It */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */ /* FIXME */ |
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{ roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Cd */ /* XXX man.4 only */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */ |
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{ roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Nd */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */ |
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{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */ |
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{ roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */ |
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{ roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */ |
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{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */ |
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{roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */ |
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{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */ |
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{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */ |
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{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */ |
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{ roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */ |
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{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */ |
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{ roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */ |
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{ roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */ |
|
{roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */ |
|
{ roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */ |
|
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */ |
|
{ NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */ |
|
{ roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */ |
|
{ roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */ |
|
{ roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */ |
|
{ roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */ |
|
{ roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */ |
|
{ roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */ |
|
}; |
|
|
|
/* Table of all known token arguments. */ |
assert(r->last); |
static const int tokenargs[ROFF_ARGMAX] = { |
p = r->last; |
0, 0, 0, 0, |
|
0, ROFF_VALUE, ROFF_VALUE, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, ROFF_VALUE, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
0, 0, 0, 0, |
|
}; |
|
|
|
const char *const toknamesp[ROFF_MAX] = { |
if (ROFF_el == p->tok) |
"\\\"", "Dd", "Dt", "Os", |
if (r->rstackpos > -1) |
"Sh", "Ss", "Pp", "D1", |
r->rstackpos--; |
"Dl", "Bd", "Ed", "Bl", |
|
"El", "It", "Ad", "An", |
|
"Ar", "Cd", "Cm", "Dv", |
|
"Er", "Ev", "Ex", "Fa", |
|
"Fd", "Fl", "Fn", "Ft", |
|
"Ic", "In", "Li", "Nd", |
|
"Nm", "Op", "Ot", "Pa", |
|
"Rv", "St", "Va", "Vt", |
|
"Xr", "\%A", "\%B", "\%D", |
|
"\%I", "\%J", "\%N", "\%O", |
|
"\%P", "\%R", "\%T", "\%V", |
|
"Ac", "Ao", "Aq", "At", |
|
"Bc", "Bf", "Bo", "Bq", |
|
"Bsx", "Bx", "Db", "Dc", |
|
"Do", "Dq", "Ec", "Ef", |
|
"Em", "Eo", "Fx", "Ms", |
|
"No", "Ns", "Nx", "Ox", |
|
"Pc", "Pf", "Po", "Pq", |
|
"Qc", "Ql", "Qo", "Qq", |
|
"Re", "Rs", "Sc", "So", |
|
"Sq", "Sm", "Sx", "Sy", |
|
"Tn", "Ux", "Xc", "Xo", |
|
"Fo", "Fc", "Oo", "Oc", |
|
"Bk", "Ek", |
|
}; |
|
|
|
const char *const tokargnamesp[ROFF_ARGMAX] = { |
r->last = r->last->parent; |
"split", "nosplit", "ragged", |
if (p->end) |
"unfilled", "literal", "file", |
free(p->end); |
"offset", "bullet", "dash", |
free(p); |
"hyphen", "item", "enum", |
} |
"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", |
|
}; |
|
|
|
const char *const *toknames = toknamesp; |
|
const char *const *tokargnames = tokargnamesp; |
|
|
|
|
/* |
int |
* Push a roff node onto the instruction stack. This must later be |
roff_free(struct rofftree *tree, int flush) |
* removed with roffnode_pop(). |
|
*/ |
|
static int |
|
roffnode_push(struct roff *r, enum rofft tok, int line, int col) |
{ |
{ |
int error, t; |
struct roffnode *p; |
struct roffnode *n; |
|
|
|
error = 0; |
if (NULL == (p = calloc(1, sizeof(struct roffnode)))) { |
|
(*r->msg)(MANDOCERR_MEM, r->data, line, col, NULL); |
if ( ! flush) |
return(0); |
goto end; |
|
|
|
error = 1; |
|
|
|
if (ROFF_PRELUDE & tree->state) { |
|
roff_warn(tree, NULL, "prelude never finished"); |
|
goto end; |
|
} |
|
|
|
for (n = tree->last; n->parent; n = n->parent) { |
|
if (0 != tokens[n->tok].ctx) |
|
continue; |
|
roff_warn(tree, NULL, "closing explicit scope `%s'", |
|
toknames[n->tok]); |
|
goto end; |
|
} |
} |
|
|
while (tree->last) { |
p->tok = tok; |
t = tree->last->tok; |
p->parent = r->last; |
if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
p->line = line; |
goto end; |
p->col = col; |
} |
p->rule = p->parent ? p->parent->rule : ROFFRULE_DENY; |
|
|
error = 0; |
r->last = p; |
|
return(1); |
end: |
|
|
|
while (tree->last) |
|
roffnode_free(tree); |
|
|
|
free(tree); |
|
|
|
return(error ? 0 : 1); |
|
} |
} |
|
|
|
|
struct rofftree * |
static void |
roff_alloc(const struct roffcb *cb, void *args) |
roff_free1(struct roff *r) |
{ |
{ |
struct rofftree *tree; |
|
|
|
assert(args); |
while (r->last) |
assert(cb); |
roffnode_pop(r); |
|
|
if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) |
|
err(1, "calloc"); |
|
|
|
tree->state = ROFF_PRELUDE; |
|
tree->arg = args; |
|
|
|
(void)memcpy(&tree->cb, cb, sizeof(struct roffcb)); |
|
|
|
return(tree); |
|
} |
} |
|
|
|
|
int |
void |
roff_engine(struct rofftree *tree, char *buf) |
roff_reset(struct roff *r) |
{ |
{ |
|
|
tree->cur = buf; |
roff_free1(r); |
assert(buf); |
|
|
|
if (0 == *buf) { |
|
roff_warn(tree, buf, "blank line"); |
|
return(0); |
|
} else if ('.' != *buf) |
|
return(textparse(tree, buf)); |
|
|
|
return(roffparse(tree, buf)); |
|
} |
} |
|
|
|
|
static int |
void |
textparse(const struct rofftree *tree, char *buf) |
roff_free(struct roff *r) |
{ |
{ |
|
|
return((*tree->cb.roffdata)(tree->arg, 1, buf)); |
roff_free1(r); |
|
free(r); |
} |
} |
|
|
|
|
static int |
struct roff * |
roffargs(const struct rofftree *tree, |
roff_alloc(const mandocmsg msg, void *data) |
int tok, char *buf, char **argv) |
|
{ |
{ |
int i; |
struct roff *r; |
char *p; |
|
|
|
assert(tok >= 0 && tok < ROFF_MAX); |
if (NULL == (r = calloc(1, sizeof(struct roff)))) { |
assert('.' == *buf); |
(*msg)(MANDOCERR_MEM, data, 0, 0, NULL); |
|
|
p = buf; |
|
|
|
/* LINTED */ |
|
for (i = 0; *buf && i < ROFF_MAXARG; 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 && ! isspace(*buf)) |
|
buf++; |
|
if (0 == *buf) |
|
continue; |
|
} |
|
*buf++ = 0; |
|
while (*buf && isspace(*buf)) |
|
buf++; |
|
} |
|
|
|
assert(i > 0); |
|
if (ROFF_MAXARG == i && *buf) { |
|
roff_err(tree, p, "too many arguments for `%s'", toknames |
|
[tok]); |
|
return(0); |
return(0); |
} |
} |
|
|
argv[i] = NULL; |
r->msg = msg; |
return(1); |
r->data = data; |
|
r->rstackpos = -1; |
|
return(r); |
} |
} |
|
|
|
|
/* XXX */ |
enum rofferr |
static int |
roff_parseln(struct roff *r, int ln, |
roffscan(int tok, const int *tokv) |
char **bufp, size_t *szp, int pos, int *offs) |
{ |
{ |
|
enum rofft t; |
|
int ppos; |
|
|
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_MAXARG]; |
|
char **argvp; |
|
|
|
if (ROFF_MAX == (tok = rofffindtok(buf + 1))) { |
|
roff_err(tree, buf + 1, "bogus line macro"); |
|
return(0); |
|
} else if (NULL == tokens[tok].cb) { |
|
roff_err(tree, buf + 1, "unsupported macro `%s'", |
|
toknames[tok]); |
|
return(0); |
|
} else if (ROFF_COMMENT == tokens[tok].type) |
|
return(1); |
|
|
|
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((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
} else |
|
assert(tree->last); |
|
|
|
assert(ROFF_BODY & tree->state); |
|
|
|
/* |
|
* First check that our possible parents and parent's possible |
|
* children are satisfied. |
|
*/ |
|
|
|
if ( ! 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 ( ! 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. |
* First, if a scope is open and we're not a macro, pass the |
|
* text through the macro's filter. If a scope isn't open and |
|
* we're not a macro, just let it through. |
*/ |
*/ |
|
|
if (ROFF_LAYOUT != tokens[tok].type) |
if (r->last && ! ROFF_CTL((*bufp)[pos])) { |
return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
t = r->last->tok; |
|
assert(roffs[t].text); |
|
return((*roffs[t].text) |
|
(r, t, bufp, szp, ln, pos, pos, offs)); |
|
} else if ( ! ROFF_CTL((*bufp)[pos])) |
|
return(ROFF_CONT); |
|
|
/* |
|
* Check our scope rules. |
|
*/ |
|
|
|
if (0 == tokens[tok].ctx) |
|
return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
|
|
/* |
/* |
* First consider implicit-end tags, like as follows: |
* If a scope is open, go to the child handler for that macro, |
* .Sh SECTION 1 |
* as it may want to preprocess before doing anything with it. |
* .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) { |
if (r->last) { |
/* |
t = r->last->tok; |
* First search up to the point where we must close. |
assert(roffs[t].sub); |
* If one doesn't exist, then we can open a new scope. |
return((*roffs[t].sub) |
*/ |
(r, t, bufp, szp, ln, pos, pos, offs)); |
|
|
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; |
|
} |
|
} |
|
|
|
/* |
|
* Create a new scope, as no previous one exists to |
|
* close out. |
|
*/ |
|
|
|
if (NULL == n) |
|
return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
|
|
/* |
|
* Close out all intermediary scoped blocks, then hang |
|
* the current scope from our predecessor's parent. |
|
*/ |
|
|
|
do { |
|
t = tree->last->tok; |
|
if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
|
return(0); |
|
} while (t != tok); |
|
|
|
return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER)); |
|
} |
} |
|
|
/* |
/* |
* Now consider explicit-end tags, where we want to close back |
* Lastly, as we've no scope open, try to look up and execute |
* to a specific tag. Example: |
* the new macro. If no macro is found, simply return and let |
* .Bl |
* the compilers handle it. |
* .It Item. |
|
* .El |
|
* In this, the `El' tag closes out the scope of `Bl'. |
|
*/ |
*/ |
|
|
assert(tree->last); |
ppos = pos; |
assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx); |
if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) |
|
return(ROFF_CONT); |
|
|
/* LINTED */ |
assert(roffs[t].proc); |
do { |
return((*roffs[t].proc) |
t = tree->last->tok; |
(r, t, bufp, szp, ln, ppos, pos, offs)); |
if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT)) |
|
return(0); |
|
} while (t != tokens[tok].ctx); |
|
|
|
assert(tree->last); |
|
return(1); |
|
} |
} |
|
|
|
|
static int |
int |
rofffindarg(const char *name) |
roff_endparse(struct roff *r) |
{ |
{ |
size_t i; |
|
|
|
/* FIXME: use a table, this is slow but ok for now. */ |
if (NULL == r->last) |
|
return(1); |
/* LINTED */ |
return((*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->last->line, |
for (i = 0; i < ROFF_ARGMAX; i++) |
r->last->col, NULL)); |
/* LINTED */ |
|
if (0 == strcmp(name, tokargnames[i])) |
|
return((int)i); |
|
|
|
return(ROFF_ARGMAX); |
|
} |
} |
|
|
|
|
static int |
/* |
rofffindtok(const char *buf) |
* 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 |
|
roff_parse(const char *buf, int *pos) |
{ |
{ |
char token[4]; |
int j; |
size_t i; |
char mac[5]; |
|
enum rofft t; |
|
|
for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++) |
assert(ROFF_CTL(buf[*pos])); |
token[i] = *buf; |
(*pos)++; |
|
|
if (i == 3) |
while (buf[*pos] && (' ' == buf[*pos] || '\t' == buf[*pos])) |
|
(*pos)++; |
|
|
|
if ('\0' == buf[*pos]) |
return(ROFF_MAX); |
return(ROFF_MAX); |
|
|
token[i] = 0; |
for (j = 0; j < 4; j++, (*pos)++) |
|
if ('\0' == (mac[j] = buf[*pos])) |
|
break; |
|
else if (' ' == buf[*pos] || (j && '\\' == buf[*pos])) |
|
break; |
|
|
/* FIXME: use a table, this is slow but ok for now. */ |
if (j == 4 || j < 1) |
|
return(ROFF_MAX); |
|
|
/* LINTED */ |
mac[j] = '\0'; |
for (i = 0; i < ROFF_MAX; i++) |
|
/* LINTED */ |
|
if (0 == strcmp(toknames[i], token)) |
|
return((int)i); |
|
|
|
return(ROFF_MAX); |
if (ROFF_MAX == (t = roff_hash_find(mac))) |
|
return(t); |
|
|
|
while (buf[*pos] && ' ' == buf[*pos]) |
|
(*pos)++; |
|
|
|
return(t); |
} |
} |
|
|
|
|
static int |
/* ARGSUSED */ |
roffispunct(const char *p) |
static enum rofferr |
|
roff_cblock(ROFF_ARGS) |
{ |
{ |
|
|
if (0 == *p) |
/* |
return(0); |
* A block-close `..' should only be invoked as a child of an |
if (0 != *(p + 1)) |
* ignore macro, otherwise raise a warning and just ignore it. |
return(0); |
*/ |
|
|
switch (*p) { |
if (NULL == r->last) { |
case('{'): |
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
|
return(ROFF_ERR); |
|
return(ROFF_IGN); |
|
} |
|
|
|
switch (r->last->tok) { |
|
case (ROFF_am): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case('.'): |
case (ROFF_ami): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case(','): |
case (ROFF_am1): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case(';'): |
case (ROFF_de): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case(':'): |
case (ROFF_dei): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case('?'): |
case (ROFF_de1): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case('!'): |
case (ROFF_ig): |
/* FALLTHROUGH */ |
|
case('('): |
|
/* FALLTHROUGH */ |
|
case(')'): |
|
/* FALLTHROUGH */ |
|
case('['): |
|
/* FALLTHROUGH */ |
|
case(']'): |
|
/* FALLTHROUGH */ |
|
case('}'): |
|
return(1); |
|
default: |
|
break; |
break; |
|
default: |
|
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
|
return(ROFF_ERR); |
|
return(ROFF_IGN); |
} |
} |
|
|
return(0); |
if ((*bufp)[pos]) |
} |
if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
return(ROFF_ERR); |
|
|
|
roffnode_pop(r); |
|
roffnode_cleanscope(r); |
|
return(ROFF_IGN); |
|
|
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 |
static void |
roffnode_free(struct rofftree *tree) |
roffnode_cleanscope(struct roff *r) |
{ |
{ |
struct roffnode *p; |
|
|
|
assert(tree->last); |
while (r->last) { |
|
if (--r->last->endspan < 0) |
p = tree->last; |
break; |
tree->last = tree->last->parent; |
roffnode_pop(r); |
free(p); |
|
} |
|
|
|
|
|
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[1], 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); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_Dd(ROFFCALL_ARGS) |
roff_ccond(ROFF_ARGS) |
{ |
{ |
|
|
if (ROFF_BODY & tree->state) { |
if (NULL == r->last) { |
assert( ! (ROFF_PRELUDE & tree->state)); |
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
assert(ROFF_PRELUDE_Dd & tree->state); |
return(ROFF_ERR); |
return(roff_text(tok, tree, argv, type)); |
return(ROFF_IGN); |
} |
} |
|
|
assert(ROFF_PRELUDE & tree->state); |
switch (r->last->tok) { |
assert( ! (ROFF_BODY & tree->state)); |
case (ROFF_el): |
|
/* FALLTHROUGH */ |
|
case (ROFF_ie): |
|
/* FALLTHROUGH */ |
|
case (ROFF_if): |
|
break; |
|
default: |
|
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
|
return(ROFF_ERR); |
|
return(ROFF_IGN); |
|
} |
|
|
if (ROFF_PRELUDE_Dd & tree->state) { |
if (r->last->endspan > -1) { |
roff_err(tree, *argv, "repeated `Dd' in prelude"); |
if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL)) |
return(0); |
return(ROFF_ERR); |
} else if (ROFF_PRELUDE_Dt & tree->state) { |
return(ROFF_IGN); |
roff_err(tree, *argv, "out-of-order `Dd' in prelude"); |
|
return(0); |
|
} |
} |
|
|
/* TODO: parse date. */ |
if ((*bufp)[pos]) |
|
if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
return(ROFF_ERR); |
|
|
assert(NULL == tree->last); |
roffnode_pop(r); |
tree->state |= ROFF_PRELUDE_Dd; |
roffnode_cleanscope(r); |
|
return(ROFF_IGN); |
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_Dt(ROFFCALL_ARGS) |
roff_block(ROFF_ARGS) |
{ |
{ |
|
int sv; |
|
size_t sz; |
|
|
if (ROFF_BODY & tree->state) { |
if (ROFF_ig != tok && '\0' == (*bufp)[pos]) { |
assert( ! (ROFF_PRELUDE & tree->state)); |
if ( ! (*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL)) |
assert(ROFF_PRELUDE_Dt & tree->state); |
return(ROFF_ERR); |
return(roff_text(tok, tree, argv, type)); |
return(ROFF_IGN); |
|
} else if (ROFF_ig != tok) { |
|
while ((*bufp)[pos] && ' ' != (*bufp)[pos]) |
|
pos++; |
|
while (' ' == (*bufp)[pos]) |
|
pos++; |
} |
} |
|
|
assert(ROFF_PRELUDE & tree->state); |
if ( ! roffnode_push(r, tok, ln, ppos)) |
assert( ! (ROFF_BODY & tree->state)); |
return(ROFF_ERR); |
|
|
if ( ! (ROFF_PRELUDE_Dd & tree->state)) { |
if ('\0' == (*bufp)[pos]) |
roff_err(tree, *argv, "out-of-order `Dt' in prelude"); |
return(ROFF_IGN); |
return(0); |
|
} else if (ROFF_PRELUDE_Dt & tree->state) { |
|
roff_err(tree, *argv, "repeated `Dt' in prelude"); |
|
return(0); |
|
} |
|
|
|
/* TODO: parse date. */ |
sv = pos; |
|
while ((*bufp)[pos] && ' ' != (*bufp)[pos] && |
|
'\t' != (*bufp)[pos]) |
|
pos++; |
|
|
assert(NULL == tree->last); |
/* |
tree->state |= ROFF_PRELUDE_Dt; |
* Note: groff does NOT like escape characters in the input. |
|
* Instead of detecting this, we're just going to let it fly and |
|
* to hell with it. |
|
*/ |
|
|
return(1); |
assert(pos > sv); |
} |
sz = (size_t)(pos - sv); |
|
|
|
if (1 == sz && '.' == (*bufp)[sv]) |
|
return(ROFF_IGN); |
|
|
/* ARGSUSED */ |
r->last->end = malloc(sz + 1); |
static int |
|
roff_Os(ROFFCALL_ARGS) |
|
{ |
|
|
|
if (ROFF_EXIT == type) { |
if (NULL == r->last->end) { |
roffnode_free(tree); |
(*r->msg)(MANDOCERR_MEM, r->data, ln, pos, NULL); |
return((*tree->cb.rofftail)(tree->arg)); |
return(ROFF_ERR); |
} 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); |
memcpy(r->last->end, *bufp + sv, sz); |
if ( ! (ROFF_PRELUDE_Dt & tree->state) || |
r->last->end[(int)sz] = '\0'; |
! (ROFF_PRELUDE_Dd & tree->state)) { |
|
roff_err(tree, *argv, "out-of-order `Os' in prelude"); |
|
return(0); |
|
} |
|
|
|
/* TODO: extract OS. */ |
if ((*bufp)[pos]) |
|
if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL)) |
|
return(ROFF_ERR); |
|
|
tree->state |= ROFF_PRELUDE_Os; |
return(ROFF_IGN); |
tree->state &= ~ROFF_PRELUDE; |
|
tree->state |= ROFF_BODY; |
|
|
|
assert(NULL == tree->last); |
|
|
|
if (NULL == roffnode_new(tok, tree)) |
|
return(0); |
|
|
|
return((*tree->cb.roffhead)(tree->arg)); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_layout(ROFFCALL_ARGS) |
roff_block_sub(ROFF_ARGS) |
{ |
{ |
int i, c, argcp[ROFF_MAXARG]; |
enum rofft t; |
char *v, *argvp[ROFF_MAXARG]; |
int i, j; |
|
|
if (ROFF_PRELUDE & tree->state) { |
/* |
roff_err(tree, *argv, "`%s' disallowed in prelude", |
* First check whether a custom macro exists at this level. If |
toknames[tok]); |
* it does, then check against it. This is some of groff's |
return(0); |
* stranger behaviours. If we encountered a custom end-scope |
} |
* tag and that tag also happens to be a "real" macro, then we |
|
* need to try interpreting it again as a real macro. If it's |
|
* not, then return ignore. Else continue. |
|
*/ |
|
|
if (ROFF_EXIT == type) { |
if (r->last->end) { |
roffnode_free(tree); |
i = pos + 1; |
return((*tree->cb.roffblkout)(tree->arg, tok)); |
while (' ' == (*bufp)[i] || '\t' == (*bufp)[i]) |
} |
i++; |
|
|
i = 0; |
for (j = 0; r->last->end[j]; j++, i++) |
argv++; |
if ((*bufp)[i] != r->last->end[j]) |
|
break; |
|
|
while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { |
if ('\0' == r->last->end[j] && |
if (ROFF_ARGMAX == c) |
('\0' == (*bufp)[i] || |
return(0); |
' ' == (*bufp)[i] || |
|
'\t' == (*bufp)[i])) { |
|
roffnode_pop(r); |
|
roffnode_cleanscope(r); |
|
|
argcp[i] = c; |
if (ROFF_MAX != roff_parse(*bufp, &pos)) |
argvp[i] = v; |
return(ROFF_RERUN); |
i++; |
return(ROFF_IGN); |
argv++; |
} |
} |
} |
|
|
argcp[i] = ROFF_ARGMAX; |
/* |
argvp[i] = NULL; |
* If we have no custom end-query or lookup failed, then try |
|
* pulling it out of the hashtable. |
|
*/ |
|
|
if (NULL == roffnode_new(tok, tree)) |
ppos = pos; |
return(0); |
t = roff_parse(*bufp, &pos); |
|
|
if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp)) |
/* If we're not a comment-end, then throw it away. */ |
return(0); |
if (ROFF_cblock != t) |
|
return(ROFF_IGN); |
|
|
if (NULL == *argv) |
assert(roffs[t].proc); |
return(1); |
return((*roffs[t].proc)(r, t, bufp, |
|
szp, ln, ppos, pos, offs)); |
|
} |
|
|
if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp)) |
|
return(0); |
|
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
/* ARGSUSED */ |
i = 0; |
static enum rofferr |
while (*argv) { |
roff_block_text(ROFF_ARGS) |
if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
{ |
return(0); |
|
i = 1; |
|
} |
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
} |
|
|
|
i = 0; |
return(ROFF_IGN); |
while (*argv) { |
} |
if (ROFF_MAX != (c = rofffindcallable(*argv))) { |
|
if (NULL == tokens[c].cb) { |
|
roff_err(tree, *argv, "unsupported " |
|
"macro `%s'", |
|
toknames[c]); |
|
return(0); |
|
} |
|
if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
|
return(0); |
|
break; |
|
} |
|
|
|
assert(tree->arg); |
|
if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
|
return(0); |
|
i = 1; |
|
} |
|
|
|
/* |
/* ARGSUSED */ |
* If we're the first parser (*argv == tree->cur) then purge out |
static enum rofferr |
* any additional punctuation, should there be any remaining at |
roff_cond_sub(ROFF_ARGS) |
* the end of line. |
{ |
*/ |
enum rofft t; |
|
enum roffrule rr; |
|
|
if (ROFF_PARSED & tokens[tok].flags && *argv) { |
ppos = pos; |
i = 0; |
rr = r->last->rule; |
while (argv[i]) |
|
i++; |
|
|
|
assert(i > 0); |
roffnode_cleanscope(r); |
if ( ! roffispunct(argv[--i])) |
|
return(1); |
|
|
|
while (i >= 0 && roffispunct(argv[i])) |
if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) |
i--; |
return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
|
|
assert(0 != i); |
/* |
i++; |
* A denied conditional must evaluate its children if and only |
|
* if they're either structurally required (such as loops and |
|
* conditionals) or a closing macro. |
|
*/ |
|
if (ROFFRULE_DENY == rr) |
|
if ( ! (ROFFMAC_STRUCT & roffs[t].flags)) |
|
if (ROFF_ccond != t) |
|
return(ROFF_IGN); |
|
|
while (argv[i]) |
assert(roffs[t].proc); |
if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++])) |
return((*roffs[t].proc) |
return(0); |
(r, t, bufp, szp, ln, ppos, pos, offs)); |
} |
|
|
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_text(ROFFCALL_ARGS) |
roff_cond_text(ROFF_ARGS) |
{ |
{ |
int i, j, first, c, argcp[ROFF_MAXARG]; |
char *ep, *st; |
char *v, *argvp[ROFF_MAXARG]; |
enum roffrule rr; |
|
|
if (ROFF_PRELUDE & tree->state) { |
rr = r->last->rule; |
roff_err(tree, *argv, "`%s' disallowed in prelude", |
|
toknames[tok]); |
|
return(0); |
|
} |
|
|
|
/* FIXME: breaks if passed from roff_layout. */ |
/* |
first = *argv == tree->cur; |
* We display the value of the text if out current evaluation |
|
* scope permits us to do so. |
|
*/ |
|
|
i = 0; |
st = &(*bufp)[pos]; |
argv++; |
if (NULL == (ep = strstr(st, "\\}"))) { |
|
roffnode_cleanscope(r); |
while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) { |
return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
if (ROFF_ARGMAX == c) |
|
return(0); |
|
|
|
argcp[i] = c; |
|
argvp[i] = v; |
|
i++; |
|
argv++; |
|
} |
} |
|
|
argcp[i] = ROFF_ARGMAX; |
if (ep > st && '\\' != *(ep - 1)) |
argvp[i] = NULL; |
roffnode_pop(r); |
|
|
if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp)) |
roffnode_cleanscope(r); |
return(0); |
return(ROFFRULE_DENY == rr ? ROFF_IGN : ROFF_CONT); |
|
} |
|
|
if ( ! (ROFF_PARSED & tokens[tok].flags)) { |
|
i = 0; |
|
while (*argv) { |
|
if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
|
return(0); |
|
i = 1; |
|
} |
|
return((*tree->cb.roffout)(tree->arg, tok)); |
|
} |
|
|
|
i = 0; |
/* ARGSUSED */ |
while (*argv) { |
static enum rofferr |
if (ROFF_MAX == (c = rofffindcallable(*argv))) { |
roff_cond(ROFF_ARGS) |
/* |
{ |
* If all that remains is roff punctuation, then |
int sv; |
* close out our scope and return. |
|
*/ |
|
if (roffispunct(*argv)) { |
|
for (j = 0; argv[j]; j++) |
|
if ( ! roffispunct(argv[j])) |
|
break; |
|
if (NULL == argv[j]) |
|
break; |
|
i = 1; |
|
} |
|
|
|
if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++)) |
|
return(0); |
|
|
|
i = 1; |
/* Stack overflow! */ |
continue; |
|
} |
|
|
|
|
if (ROFF_ie == tok && r->rstackpos == RSTACK_MAX - 1) { |
|
(*r->msg)(MANDOCERR_MEM, r->data, ln, ppos, NULL); |
|
return(ROFF_ERR); |
|
} |
|
|
|
if (ROFF_if == tok || ROFF_ie == tok) { |
/* |
/* |
* A sub-command has been found. Execute it and |
* Read ahead past the conditional. FIXME: this does |
* discontinue parsing for arguments. |
* not work, as conditionals don't end on whitespace, |
|
* but are parsed according to a formal grammar. It's |
|
* good enough for now, however. |
*/ |
*/ |
|
while ((*bufp)[pos] && ' ' != (*bufp)[pos]) |
if (NULL == tokens[c].cb) { |
pos++; |
roff_err(tree, *argv, "unsupported macro `%s'", |
|
toknames[c]); |
|
return(0); |
|
} |
|
|
|
if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER)) |
|
return(0); |
|
|
|
break; |
|
} |
} |
|
|
if ( ! (*tree->cb.roffout)(tree->arg, tok)) |
sv = pos; |
return(0); |
while (' ' == (*bufp)[pos]) |
|
pos++; |
|
|
/* |
/* |
* If we're the first parser (*argv == tree->cur) then purge out |
* Roff is weird. If we have just white-space after the |
* any additional punctuation, should there be any remaining at |
* conditional, it's considered the BODY and we exit without |
* the end of line. |
* really doing anything. Warn about this. It's probably |
|
* wrong. |
*/ |
*/ |
|
if ('\0' == (*bufp)[pos] && sv != pos) { |
|
if ( ! (*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL)) |
|
return(ROFF_ERR); |
|
return(ROFF_IGN); |
|
} |
|
|
if (first && *argv) { |
if ( ! roffnode_push(r, tok, ln, ppos)) |
i = 0; |
return(ROFF_ERR); |
while (argv[i]) |
|
i++; |
|
|
|
assert(i > 0); |
/* TODO: here we would evaluate the conditional. */ |
if ( ! roffispunct(argv[--i])) |
|
return(1); |
|
|
|
while (i >= 0 && roffispunct(argv[i])) |
if (ROFF_el == tok) { |
i--; |
/* |
|
* An `.el' will get the value of the current rstack |
assert(0 != i); |
* entry set in prior `ie' calls or defaults to DENY. |
i++; |
*/ |
|
if (r->rstackpos < 0) |
while (argv[i]) |
r->last->rule = ROFFRULE_DENY; |
if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++])) |
else |
return(0); |
r->last->rule = r->rstack[r->rstackpos]; |
|
} else if (ROFF_ie == tok) { |
|
/* |
|
* An if-else will put the NEGATION of the current |
|
* evaluated conditional into the stack. |
|
*/ |
|
r->rstackpos++; |
|
if (ROFFRULE_DENY == r->last->rule) |
|
r->rstack[r->rstackpos] = ROFFRULE_ALLOW; |
|
else |
|
r->rstack[r->rstackpos] = ROFFRULE_DENY; |
} |
} |
|
|
return(1); |
r->last->endspan = 1; |
} |
|
|
|
|
if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) { |
|
r->last->endspan = -1; |
|
pos += 2; |
|
} |
|
|
/* ARGSUSED */ |
/* |
static int |
* If there are no arguments on the line, the next-line scope is |
roff_comment(ROFFCALL_ARGS) |
* assumed. |
{ |
*/ |
|
|
return(1); |
if ('\0' == (*bufp)[pos]) |
} |
return(ROFF_IGN); |
|
|
|
/* Otherwise re-run the roff parser after recalculating. */ |
|
|
/* ARGSUSED */ |
*offs = pos; |
static int |
return(ROFF_RERUN); |
roff_close(ROFFCALL_ARGS) |
|
{ |
|
|
|
return(1); |
|
} |
} |
|
|
|
|
/* ARGSUSED */ |
/* ARGSUSED */ |
static int |
static enum rofferr |
roff_special(ROFFCALL_ARGS) |
roff_line(ROFF_ARGS) |
{ |
{ |
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return((*tree->cb.roffspecial)(tree->arg, tok)); |
return(ROFF_IGN); |
} |
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static void |
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roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...) |
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{ |
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va_list ap; |
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char buf[128]; |
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va_start(ap, fmt); |
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(void)vsnprintf(buf, sizeof(buf), fmt, ap); |
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va_end(ap); |
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(*tree->cb.roffmsg)(tree->arg, |
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ROFF_WARN, tree->cur, pos, buf); |
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} |
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static void |
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roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...) |
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{ |
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va_list ap; |
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char buf[128]; |
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va_start(ap, fmt); |
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(void)vsnprintf(buf, sizeof(buf), fmt, ap); |
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va_end(ap); |
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(*tree->cb.roffmsg)(tree->arg, |
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ROFF_ERROR, tree->cur, pos, buf); |
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} |
} |