-/* $Id: roff.c,v 1.11 2008/11/27 14:02:41 kristaps Exp $ */
+/* $Id: roff.c,v 1.78 2010/05/16 22:28:33 kristaps Exp $ */
/*
- * 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
- * purpose with or without fee is hereby granted, provided that the
- * above copyright notice and this permission notice appear in all
- * copies.
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
*
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
- * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <assert.h>
-#include <ctype.h>
-#include <err.h>
#include <stdlib.h>
-#include <stdio.h>
#include <string.h>
-#include <time.h>
-
-#include "libmdocml.h"
-#include "private.h"
-
-/* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
-
-/* FIXME: warn about "X section only" macros. */
-
-/* FIXME: warn about empty lists. */
-
-/* FIXME: ; : } ) (etc.) after text macros? */
-
-/* FIXME: NAME section needs specific elements. */
-
-#define ROFF_MAXARG 32
-
-enum roffd {
- ROFF_ENTER = 0,
- ROFF_EXIT
-};
+#include <stdio.h>
-enum rofftype {
- ROFF_COMMENT,
- ROFF_TEXT,
- ROFF_LAYOUT,
- ROFF_SPECIAL
-};
+#include "mandoc.h"
+#include "roff.h"
+
+#define ROFF_CTL(c) \
+ ('.' == (c) || '\'' == (c))
+#if 0
+#define ROFF_MDEBUG(p, str) \
+ fprintf(stderr, "%s: %s (%d:%d)\n", (str), \
+ roffs[(p)->last->tok].name, \
+ (p)->last->line, (p)->last->col)
+#else
+#define ROFF_MDEBUG(p, str) while (/* CONSTCOND */ 0)
+#endif
-#define ROFFCALL_ARGS \
- int tok, struct rofftree *tree, \
- const char *argv[], enum roffd type
-
-struct rofftree;
-
-struct rofftok {
- int (*cb)(ROFFCALL_ARGS); /* Callback. */
- const int *args; /* Args (or NULL). */
- const int *parents;
- const int *children;
- int ctx;
- enum rofftype type; /* Type of macro. */
- int flags;
-#define ROFF_PARSED (1 << 0) /* "Parsed". */
-#define ROFF_CALLABLE (1 << 1) /* "Callable". */
-#define ROFF_QUOTES (1 << 2) /* Quoted args. */
-#define ROFF_SHALLOW (1 << 3) /* Nesting block. */
+enum rofft {
+ ROFF_if,
+ ROFF_ig,
+ ROFF_cblock,
+ ROFF_ccond,
+#if 0
+ ROFF_am,
+ ROFF_ami,
+ ROFF_de,
+ ROFF_dei,
+ ROFF_close,
+#endif
+ ROFF_MAX
};
-struct roffarg {
- int flags;
-#define ROFF_VALUE (1 << 0) /* Has a value. */
+struct roff {
+ struct roffnode *last; /* leaf of stack */
+ mandocmsg msg; /* err/warn/fatal messages */
+ void *data; /* privdata for messages */
};
struct roffnode {
- int tok; /* Token id. */
- struct roffnode *parent; /* Parent (or NULL). */
- size_t line; /* Parsed at line. */
-};
-
-struct rofftree {
- struct roffnode *last; /* Last parsed node. */
- time_t date; /* `Dd' results. */
- char os[64]; /* `Os' results. */
- char title[64]; /* `Dt' results. */
- char section[64]; /* `Dt' results. */
- char volume[64]; /* `Dt' results. */
- int state;
-#define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
- /* FIXME: if we had prev ptrs, this wouldn't be necessary. */
-#define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
-#define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
-#define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
-#define ROFF_BODY (1 << 5) /* In roff body. */
- struct md_mbuf *mbuf; /* Output (or NULL). */
- const struct md_args *args; /* Global args. */
- const struct md_rbuf *rbuf; /* Input. */
- const struct roffcb *cb;
+ enum rofft tok; /* type of node */
+ struct roffnode *parent; /* up one in stack */
+ char *end; /* end-token: custom */
+ int line; /* parse line */
+ int col; /* parse col */
+ int endspan;
};
-static int roff_Dd(ROFFCALL_ARGS);
-static int roff_Dt(ROFFCALL_ARGS);
-static int roff_Os(ROFFCALL_ARGS);
-
-static int roff_layout(ROFFCALL_ARGS);
-static int roff_text(ROFFCALL_ARGS);
-static int roff_comment(ROFFCALL_ARGS);
-static int roff_close(ROFFCALL_ARGS);
-static int roff_special(ROFFCALL_ARGS);
-
-static struct roffnode *roffnode_new(int, struct rofftree *);
-static void roffnode_free(int, struct rofftree *);
-
-static int roffscan(int, const int *);
-static int rofffindtok(const char *);
-static int rofffindarg(const char *);
-static int rofffindcallable(const char *);
-static int roffargs(const struct rofftree *,
- int, char *, char **);
-static int roffargok(int, int);
-static int roffnextopt(int, const char ***, char **);
-static int roffparse(struct rofftree *, char *, size_t);
-static int textparse(const struct rofftree *,
- const char *, size_t);
-
-
-static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
- ROFF_ARGMAX };
-static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
- ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_ARGMAX };
-static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
-static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
-static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
- ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
- ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
- ROFF_ARGMAX };
-static const int roffarg_St[] = {
- ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
- ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
- ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
- ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
- ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
- ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
- ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
- ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
- ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
- ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
- ROFF_ARGMAX };
-
-static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
-static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
-static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
-static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
- ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
- ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
-
-static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
-static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
-static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
-static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
-static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
-
-/* Table of all known tokens. */
-static const struct rofftok tokens[ROFF_MAX] = {
- {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
- { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
- { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
- { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
- { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
- { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
- { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
- { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
- { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
- { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
- { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
- { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
- { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
- { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
- { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
- {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
- { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
- { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
- { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
- { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
- { 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, NULL, 0, ROFF_LAYOUT, 0 }, /* Fo */
- { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Oo */
- { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
- { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
- { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
+#define ROFF_ARGS struct roff *r, /* parse ctx */ \
+ enum rofft tok, /* tok of macro */ \
+ char **bufp, /* input buffer */ \
+ size_t *szp, /* size of input buffer */ \
+ int ln, /* parse line */ \
+ int ppos, /* original pos in buffer */ \
+ int pos, /* current pos in buffer */ \
+ int *offs /* reset offset of buffer data */
+
+typedef enum rofferr (*roffproc)(ROFF_ARGS);
+
+struct roffmac {
+ const char *name; /* macro name */
+ roffproc proc;
+ roffproc text;
};
-/* Table of all known token arguments. */
-static const struct roffarg tokenargs[ROFF_ARGMAX] = {
- { 0 }, /* split */
- { 0 }, /* nosplit */
- { 0 }, /* ragged */
- { 0 }, /* unfilled */
- { 0 }, /* literal */
- { ROFF_VALUE }, /* file */
- { ROFF_VALUE }, /* offset */
- { 0 }, /* bullet */
- { 0 }, /* dash */
- { 0 }, /* hyphen */
- { 0 }, /* item */
- { 0 }, /* enum */
- { 0 }, /* tag */
- { 0 }, /* diag */
- { 0 }, /* hang */
- { 0 }, /* ohang */
- { 0 }, /* inset */
- { 0 }, /* column */
- { 0 }, /* width */
- { 0 }, /* compact */
- { 0 }, /* std */
- { 0 }, /* p1003_1_88 */
- { 0 }, /* p1003_1_90 */
- { 0 }, /* p1003_1_96 */
- { 0 }, /* p1003_1_2001 */
- { 0 }, /* p1003_1_2004 */
- { 0 }, /* p1003_1 */
- { 0 }, /* p1003_1b */
- { 0 }, /* p1003_1b_93 */
- { 0 }, /* p1003_1c_95 */
- { 0 }, /* p1003_1g_2000 */
- { 0 }, /* p1003_2_92 */
- { 0 }, /* p1387_2_95 */
- { 0 }, /* p1003_2 */
- { 0 }, /* p1387_2 */
- { 0 }, /* isoC_90 */
- { 0 }, /* isoC_amd1 */
- { 0 }, /* isoC_tcor1 */
- { 0 }, /* isoC_tcor2 */
- { 0 }, /* isoC_99 */
- { 0 }, /* ansiC */
- { 0 }, /* ansiC_89 */
- { 0 }, /* ansiC_99 */
- { 0 }, /* ieee754 */
- { 0 }, /* iso8802_3 */
- { 0 }, /* xpg3 */
- { 0 }, /* xpg4 */
- { 0 }, /* xpg4_2 */
- { 0 }, /* xpg4_3 */
- { 0 }, /* xbd5 */
- { 0 }, /* xcu5 */
- { 0 }, /* xsh5 */
- { 0 }, /* xns5 */
- { 0 }, /* xns5_2d2_0 */
- { 0 }, /* xcurses4_2 */
- { 0 }, /* susv2 */
- { 0 }, /* susv3 */
- { 0 }, /* svid4 */
+static enum rofferr roff_if(ROFF_ARGS);
+static enum rofferr roff_if_text(ROFF_ARGS);
+static enum rofferr roff_ig(ROFF_ARGS);
+static enum rofferr roff_ig_text(ROFF_ARGS);
+static enum rofferr roff_cblock(ROFF_ARGS);
+static enum rofferr roff_ccond(ROFF_ARGS);
+
+const struct roffmac roffs[ROFF_MAX] = {
+ { "if", roff_if, roff_if_text },
+ { "ig", roff_ig, roff_ig_text },
+ { ".", roff_cblock, NULL },
+ { "\\}", roff_ccond, NULL },
};
-const char *const toknamesp[ROFF_MAX] =
- {
- "\\\"", "Dd", "Dt", "Os",
- "Sh", "Ss", "Pp", "D1",
- "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] =
- {
- "split", "nosplit", "ragged",
- "unfilled", "literal", "file",
- "offset", "bullet", "dash",
- "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"
- };
-
-const char *const *toknames = toknamesp;
-const char *const *tokargnames = tokargnamesp;
+static void roff_free1(struct roff *);
+static enum rofft roff_hash_find(const char *);
+static void roffnode_cleanscope(struct roff *);
+static int roffnode_push(struct roff *,
+ enum rofft, int, int);
+static void roffnode_pop(struct roff *);
+static enum rofft roff_parse(const char *, int *);
-int
-roff_free(struct rofftree *tree, int flush)
-{
- int error;
-
- assert(tree->mbuf);
- if ( ! flush)
- tree->mbuf = NULL;
-
- /* LINTED */
- while (tree->last)
- if ( ! (*tokens[tree->last->tok].cb)
- (tree->last->tok, tree, NULL, ROFF_EXIT))
- /* Disallow flushing. */
- tree->mbuf = NULL;
-
- error = tree->mbuf ? 0 : 1;
-
- if (tree->mbuf && (ROFF_PRELUDE & tree->state)) {
- warnx("%s: prelude never finished",
- tree->rbuf->name);
- error = 1;
- }
-
- free(tree);
- return(error ? 0 : 1);
-}
-
-
-struct rofftree *
-roff_alloc(const struct md_args *args, struct md_mbuf *out,
- const struct md_rbuf *in, const struct roffcb *cb)
+/*
+ * Look up a roff token by its name. Returns ROFF_MAX if no macro by
+ * the nil-terminated string name could be found.
+ */
+static enum rofft
+roff_hash_find(const char *p)
{
- struct rofftree *tree;
+ int i;
- if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) {
- warn("malloc");
- return(NULL);
- }
+ /* FIXME: make this be fast and efficient. */
- tree->state = ROFF_PRELUDE;
- tree->args = args;
- tree->mbuf = out;
- tree->rbuf = in;
- tree->cb = cb;
+ for (i = 0; i < (int)ROFF_MAX; i++)
+ if (0 == strcmp(roffs[i].name, p))
+ return((enum rofft)i);
- return(tree);
+ return(ROFF_MAX);
}
-int
-roff_engine(struct rofftree *tree, char *buf, size_t sz)
+/*
+ * Pop the current node off of the stack of roff instructions currently
+ * pending.
+ */
+static void
+roffnode_pop(struct roff *r)
{
+ struct roffnode *p;
- if (0 == sz) {
- warnx("%s: blank line (line %zu)",
- tree->rbuf->name,
- tree->rbuf->line);
- return(0);
- } else if ('.' != *buf)
- return(textparse(tree, buf, sz));
-
- return(roffparse(tree, buf, sz));
+ assert(r->last);
+ p = r->last;
+ r->last = r->last->parent;
+ if (p->end)
+ free(p->end);
+ free(p);
}
+/*
+ * Push a roff node onto the instruction stack. This must later be
+ * removed with roffnode_pop().
+ */
static int
-textparse(const struct rofftree *tree, const char *buf, size_t sz)
+roffnode_push(struct roff *r, enum rofft tok, int line, int col)
{
-
- if (NULL == tree->last) {
- warnx("%s: unexpected text (line %zu)",
- tree->rbuf->name,
- tree->rbuf->line);
- return(0);
- } else if (NULL == tree->last->parent) {
- warnx("%s: disallowed text (line %zu)",
- tree->rbuf->name,
- tree->rbuf->line);
+ struct roffnode *p;
+
+ if (NULL == (p = calloc(1, sizeof(struct roffnode)))) {
+ (*r->msg)(MANDOCERR_MEM, r->data, line, col, NULL);
return(0);
}
- /* Print text. */
+ p->tok = tok;
+ p->parent = r->last;
+ p->line = line;
+ p->col = col;
+ r->last = p;
return(1);
}
-static int
-roffargs(const struct rofftree *tree,
- int tok, char *buf, char **argv)
+static void
+roff_free1(struct roff *r)
{
- int i;
-
- assert(tok >= 0 && tok < ROFF_MAX);
- assert('.' == *buf);
-
- /* LINTED */
- for (i = 0; *buf && i < ROFF_MAXARG; i++) {
- if ('\"' == *buf) {
- argv[i] = ++buf;
- while (*buf && '\"' != *buf)
- buf++;
- if (0 == *buf) {
- warnx("%s: unclosed quoted arg for "
- "`%s' (line %zu)",
- tree->rbuf->name,
- toknames[tok],
- tree->rbuf->line);
- 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) {
- warnx("%s: too many args for `%s' (line %zu)",
- tree->rbuf->name, toknames[tok],
- tree->rbuf->line);
- return(0);
- }
-
-#ifdef DEBUG
- (void)printf("argparse: %d arguments for `%s'\n",
- i, toknames[tok]);
-#endif
- argv[i] = NULL;
- return(1);
+ while (r->last)
+ roffnode_pop(r);
}
-/* XXX */
-static int
-roffscan(int tok, const int *tokv)
+void
+roff_reset(struct roff *r)
{
- if (NULL == tokv)
- return(1);
-
- for ( ; ROFF_MAX != *tokv; tokv++)
- if (tok == *tokv)
- return(1);
-
- return(0);
+ roff_free1(r);
}
-static int
-roffparse(struct rofftree *tree, char *buf, size_t sz)
+void
+roff_free(struct roff *r)
{
- int tok, t;
- struct roffnode *n;
- char *argv[ROFF_MAXARG];
- const char **argvp;
-
- assert(sz > 0);
- if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
- warnx("%s: unknown line macro (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
- } else if (NULL == tokens[tok].cb) {
- warnx("%s: macro `%s' not supported (line %zu)",
- tree->rbuf->name, toknames[tok],
- tree->rbuf->line);
- return(0);
- } else if (ROFF_COMMENT == tokens[tok].type)
- return(1);
-
- if ( ! roffargs(tree, tok, buf, argv))
- return(0);
- else
- argvp = (const char **)argv + 1;
+ roff_free1(r);
+ free(r);
+}
- /*
- * Prelude macros break some assumptions: 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)) {
- warnx("%s: invalid parent `%s' for `%s' (line %zu)",
- tree->rbuf->name,
- toknames[tree->last->tok],
- toknames[tok], tree->rbuf->line);
- return(0);
- }
+struct roff *
+roff_alloc(const mandocmsg msg, void *data)
+{
+ struct roff *r;
- if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
- warnx("%s: invalid child `%s' for `%s' (line %zu)",
- tree->rbuf->name, toknames[tok],
- toknames[tree->last->tok],
- tree->rbuf->line);
+ if (NULL == (r = calloc(1, sizeof(struct roff)))) {
+ (*msg)(MANDOCERR_MEM, data, 0, 0, NULL);
return(0);
}
- /*
- * Branch if we're not a layout token.
- */
+ r->msg = msg;
+ r->data = data;
+ return(r);
+}
- if (ROFF_LAYOUT != tokens[tok].type)
- return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
- /*
- * Check our scope rules.
- */
+enum rofferr
+roff_parseln(struct roff *r, int ln,
+ char **bufp, size_t *szp, int pos, int *offs)
+{
+ enum rofft t;
+ int ppos, i, j, wtf;
- if (0 == tokens[tok].ctx)
- return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
+ if (r->last && ! ROFF_CTL((*bufp)[pos])) {
+ /*
+ * If a scope is open and we're not a macro, pass it
+ * through our text detector and continue as quickly as
+ * possible.
+ */
+ 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]))
+ /*
+ * Don't do anything if we're free-form text.
+ */
+ return(ROFF_CONT);
- if (tok == tokens[tok].ctx) {
- 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;
- }
- }
+ /* A macro-ish line with a possibly-open macro context. */
+
+ wtf = 0;
+ if (r->last && r->last->end) {
/*
- * Create a new scope, as no previous one exists to
- * close out.
+ * We have a scope open that has a custom end-macro
+ * handler. Try to match it against the input.
*/
- if (NULL == n) {
-#ifdef DEBUG
- (void)printf("scope: new `%s'\n",
- toknames[tok]);
-#endif
- return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
+ i = pos + 1;
+ while (' ' == (*bufp)[i] || '\t' == (*bufp)[i])
+ i++;
+
+ for (j = 0; r->last->end[j]; j++, i++)
+ if ((*bufp)[i] != r->last->end[j])
+ break;
+
+ if ('\0' == r->last->end[j] &&
+ ('\0' == (*bufp)[i] ||
+ ' ' == (*bufp)[i] ||
+ '\t' == (*bufp)[i])) {
+ roffnode_pop(r);
+ roffnode_cleanscope(r);
+ wtf = 1;
}
+ }
+ ppos = pos;
+ if (ROFF_MAX == (t = roff_parse(*bufp, &pos))) {
/*
- * Close out all intermediary scoped blocks.
+ * This is some of groff's 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 (wtf)
+ return(ROFF_IGN);
+ else if (NULL == r->last)
+ return(ROFF_CONT);
- do {
- t = tree->last->tok;
-#ifdef DEBUG
- (void)printf("scope: closing `%s'\n",
- toknames[t]);
-#endif
- if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
- return(0);
- } while (t != tok);
-
-#ifdef DEBUG
- (void)printf("scope: new parent of `%s' is `%s'\n",
- toknames[tok],
- toknames[tree->last->tok]);
-#endif
-
- return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
+ /* FIXME: this assumes that we ignore!? */
+ return(ROFF_IGN);
}
- assert(tree->last);
- assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
-
- do {
- t = tree->last->tok;
-#ifdef DEBUG
- (void)printf("scope: closing `%s'\n", toknames[t]);
-#endif
- if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
- return(0);
- } while (t != tokens[tok].ctx);
-
- assert(tree->last);
- return(1);
+ assert(roffs[t].proc);
+ return((*roffs[t].proc)
+ (r, t, bufp, szp, ln, ppos, pos, offs));
}
-static int
-rofffindarg(const char *name)
+int
+roff_endparse(struct roff *r)
{
- size_t i;
- /* FIXME: use a table, this is slow but ok for now. */
-
- /* LINTED */
- for (i = 0; i < ROFF_ARGMAX; i++)
- /* LINTED */
- if (0 == strcmp(name, tokargnames[i]))
- return((int)i);
-
- return(ROFF_ARGMAX);
+ if (NULL == r->last)
+ return(1);
+ return((*r->msg)(MANDOCERR_SCOPEEXIT, r->data, r->last->line,
+ r->last->col, NULL));
}
-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];
- size_t i;
+ int j;
+ char mac[5];
+ enum rofft t;
- for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
- token[i] = *buf;
+ assert(ROFF_CTL(buf[*pos]));
+ (*pos)++;
- if (i == 3)
- return(ROFF_MAX);
+ while (buf[*pos] && (' ' == buf[*pos] || '\t' == buf[*pos]))
+ (*pos)++;
- token[i] = 0;
-
- /* FIXME: use a table, this is slow but ok for now. */
-
- /* LINTED */
- for (i = 0; i < ROFF_MAX; i++)
- /* LINTED */
- if (0 == strcmp(toknames[i], token)) {
-#ifdef DEBUG
- (void)printf("lookup (good): `%s' (%d)\n",
- token, (int)i);
-#endif
- return((int)i);
- }
-
-#ifdef DEBUG
- (void)printf("lookup (bad): `%s'\n", token);
-#endif
-
- return(ROFF_MAX);
-}
+ if ('\0' == buf[*pos])
+ return(ROFF_MAX);
+ for (j = 0; j < 4; j++, (*pos)++)
+ if ('\0' == (mac[j] = buf[*pos]))
+ break;
+ else if (' ' == buf[*pos])
+ break;
-static int
-rofffindcallable(const char *name)
-{
- int c;
-
- if (ROFF_MAX == (c = rofffindtok(name)))
+ if (j == 4 || j < 1)
return(ROFF_MAX);
- assert(c >= 0 && c < ROFF_MAX);
- return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
-}
+ mac[j] = '\0';
-static struct roffnode *
-roffnode_new(int tokid, struct rofftree *tree)
-{
- struct roffnode *p;
-
- if (NULL == (p = malloc(sizeof(struct roffnode)))) {
- warn("malloc");
- return(NULL);
- }
+ if (ROFF_MAX == (t = roff_hash_find(mac)))
+ return(t);
- p->line = tree->rbuf->line;
- p->tok = tokid;
- p->parent = tree->last;
- tree->last = p;
-
-#ifdef DEBUG
- (void)printf("scope: new `%s' child of `%s'\n",
- toknames[tree->last->tok],
- tree->last->parent ?
- toknames[tree->last->parent->tok] :
- "<root>");
-#endif
+ while (buf[*pos] && ' ' == buf[*pos])
+ (*pos)++;
- return(p);
+ return(t);
}
-static int
-roffargok(int tokid, int argid)
+/* ARGSUSED */
+static enum rofferr
+roff_cblock(ROFF_ARGS)
{
- const int *c;
-
- if (NULL == (c = tokens[tokid].args))
- return(0);
-
- for ( ; ROFF_ARGMAX != *c; c++)
- if (argid == *c)
- return(1);
-
- return(0);
-}
+ if (NULL == r->last) {
+ if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
+ }
-static void
-roffnode_free(int tokid, struct rofftree *tree)
-{
- struct roffnode *p;
+ if (ROFF_ig != r->last->tok) {
+ if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
+ }
- assert(tree->last);
- assert(tree->last->tok == tokid);
+ if ((*bufp)[pos])
+ if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL))
+ return(ROFF_ERR);
-#ifdef DEBUG
- (void)printf("scope: closing `%s' back to `%s'\n",
- toknames[tree->last->tok],
- tree->last->parent ?
- toknames[tree->last->parent->tok] :
- "<root>");
-#endif
+ ROFF_MDEBUG(r, "closing ignore block");
+ roffnode_pop(r);
+ roffnode_cleanscope(r);
+ return(ROFF_IGN);
- p = tree->last;
- tree->last = tree->last->parent;
- free(p);
}
-static int
-roffnextopt(int tok, const char ***in, char **val)
+static void
+roffnode_cleanscope(struct roff *r)
{
- const char *arg, **argv;
- int v;
-
- *val = NULL;
- argv = *in;
- assert(argv);
-
- if (NULL == (arg = *argv))
- return(-1);
- if ('-' != *arg)
- return(-1);
-
- /* FIXME: should we let this slide... ? */
-
- if (ROFF_ARGMAX == (v = rofffindarg(&arg[1])))
- return(-1);
-
- /* FIXME: should we let this slide... ? */
-
- if ( ! roffargok(tok, v))
- 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);
+ while (r->last) {
+ if (--r->last->endspan < 0)
+ break;
+ ROFF_MDEBUG(r, "closing implicit scope");
+ roffnode_pop(r);
+ }
}
/* ARGSUSED */
-static int
-roff_Dd(ROFFCALL_ARGS)
+static enum rofferr
+roff_ccond(ROFF_ARGS)
{
- if (ROFF_BODY & tree->state) {
- assert( ! (ROFF_PRELUDE & tree->state));
- assert(ROFF_PRELUDE_Dd & tree->state);
- return(roff_text(tok, tree, argv, type));
+ if (NULL == r->last) {
+ if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
}
- assert(ROFF_PRELUDE & tree->state);
- assert( ! (ROFF_BODY & tree->state));
-
- if (ROFF_PRELUDE_Dd & tree->state) {
- warnx("%s: prelude `Dd' repeated (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
- } else if (ROFF_PRELUDE_Dt & tree->state) {
- warnx("%s: prelude `Dd' out-of-order (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
+ if (ROFF_if != r->last->tok) {
+ if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
}
- /* TODO: parse date. */
+ if (r->last->endspan > -1) {
+ if ( ! (*r->msg)(MANDOCERR_NOSCOPE, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
+ }
- assert(NULL == tree->last);
- tree->state |= ROFF_PRELUDE_Dd;
+ if ((*bufp)[pos])
+ if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL))
+ return(ROFF_ERR);
- return(1);
+ ROFF_MDEBUG(r, "closing explicit scope");
+ roffnode_pop(r);
+ roffnode_cleanscope(r);
+ return(ROFF_IGN);
}
/* ARGSUSED */
-static int
-roff_Dt(ROFFCALL_ARGS)
+static enum rofferr
+roff_ig(ROFF_ARGS)
{
+ int sv;
+ size_t sz;
- if (ROFF_BODY & tree->state) {
- assert( ! (ROFF_PRELUDE & tree->state));
- assert(ROFF_PRELUDE_Dt & tree->state);
- return(roff_text(tok, tree, argv, type));
- }
-
- assert(ROFF_PRELUDE & tree->state);
- assert( ! (ROFF_BODY & tree->state));
+ if ( ! roffnode_push(r, tok, ln, ppos))
+ return(ROFF_ERR);
- if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
- warnx("%s: prelude `Dt' out-of-order (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
- } else if (ROFF_PRELUDE_Dt & tree->state) {
- warnx("%s: prelude `Dt' repeated (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
+ if ('\0' == (*bufp)[pos]) {
+ ROFF_MDEBUG(r, "opening ignore block");
+ return(ROFF_IGN);
}
- /* TODO: parse date. */
-
- assert(NULL == tree->last);
- tree->state |= ROFF_PRELUDE_Dt;
+ sv = pos;
+ while ((*bufp)[pos] && ' ' != (*bufp)[pos] &&
+ '\t' != (*bufp)[pos])
+ pos++;
- return(1);
-}
+ /*
+ * 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.
+ */
+ assert(pos > sv);
+ sz = (size_t)(pos - sv);
-/* ARGSUSED */
-static int
-roff_Os(ROFFCALL_ARGS)
-{
+ r->last->end = malloc(sz + 1);
- if (ROFF_EXIT == type) {
- 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));
+ if (NULL == r->last->end) {
+ (*r->msg)(MANDOCERR_MEM, r->data, ln, pos, NULL);
+ return(ROFF_ERR);
}
- assert(ROFF_PRELUDE & tree->state);
- if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
- ! (ROFF_PRELUDE_Dd & tree->state)) {
- warnx("%s: prelude `Os' out-of-order (line %zu)",
- tree->rbuf->name, tree->rbuf->line);
- return(0);
- }
+ memcpy(r->last->end, *bufp + sv, sz);
+ r->last->end[(int)sz] = '\0';
- /* TODO: extract OS. */
+ ROFF_MDEBUG(r, "opening explicit ignore block");
- tree->state |= ROFF_PRELUDE_Os;
- tree->state &= ~ROFF_PRELUDE;
- tree->state |= ROFF_BODY;
+ if ((*bufp)[pos])
+ if ( ! (*r->msg)(MANDOCERR_ARGSLOST, r->data, ln, pos, NULL))
+ return(ROFF_ERR);
- assert(NULL == tree->last);
-
- return(roff_layout(tok, tree, argv, type));
+ return(ROFF_IGN);
}
/* ARGSUSED */
-static int
-roff_layout(ROFFCALL_ARGS)
+static enum rofferr
+roff_ig_text(ROFF_ARGS)
{
- int i, c, argcp[ROFF_MAXARG];
- char *v, *argvp[ROFF_MAXARG];
-
- if (ROFF_PRELUDE & tree->state) {
- warnx("%s: macro `%s' called in prelude (line %zu)",
- tree->rbuf->name,
- toknames[tok],
- tree->rbuf->line);
- return(0);
- }
-
- if (ROFF_EXIT == type) {
- roffnode_free(tok, tree);
- return((*tree->cb->roffblkout)(tok));
- }
-
- i = 0;
-
- while (-1 != (c = roffnextopt(tok, &argv, &v))) {
- if (ROFF_ARGMAX == c) {
- warnx("%s: error parsing `%s' args (line %zu)",
- tree->rbuf->name,
- toknames[tok],
- tree->rbuf->line);
- return(0);
- } else if ( ! roffargok(tok, c)) {
- warnx("%s: arg `%s' not for `%s' (line %zu)",
- tree->rbuf->name,
- tokargnames[c],
- toknames[tok],
- tree->rbuf->line);
- return(0);
- }
- argcp[i] = c;
- argvp[i] = v;
- i++;
- argv++;
- }
- argcp[i] = ROFF_ARGMAX;
- argvp[i] = NULL;
+ return(ROFF_IGN);
+}
- if (NULL == roffnode_new(tok, tree))
- return(0);
- if ( ! (*tree->cb->roffin)(tok, argcp, argvp))
- return(0);
-
- if ( ! (ROFF_PARSED & tokens[tok].flags)) {
- /* TODO: print all tokens. */
+/* ARGSUSED */
+static enum rofferr
+roff_if_text(ROFF_ARGS)
+{
+ char *ep, *st;
- if ( ! ((*tree->cb->roffout)(tok)))
- return(0);
- return((*tree->cb->roffblkin)(tok));
+ st = &(*bufp)[pos];
+ if (NULL == (ep = strstr(st, "\\}"))) {
+ roffnode_cleanscope(r);
+ return(ROFF_IGN);
}
- while (*argv) {
- if (ROFF_MAX != (c = rofffindcallable(*argv))) {
- if (NULL == tokens[c].cb) {
- warnx("%s: macro `%s' not supported "
- "(line %zu)",
- tree->rbuf->name,
- toknames[c],
- tree->rbuf->line);
- return(0);
- }
- if ( ! (*tokens[c].cb)(c, tree,
- argv + 1, ROFF_ENTER))
- return(0);
- }
- /* TODO: print token. */
- argv++;
+ if (ep > st && '\\' != *(ep - 1)) {
+ ROFF_MDEBUG(r, "closing explicit scope (in-line)");
+ roffnode_pop(r);
}
- if ( ! ((*tree->cb->roffout)(tok)))
- return(0);
-
- return((*tree->cb->roffblkin)(tok));
+ roffnode_cleanscope(r);
+ return(ROFF_IGN);
}
/* ARGSUSED */
-static int
-roff_text(ROFFCALL_ARGS)
+static enum rofferr
+roff_if(ROFF_ARGS)
{
- int i, c, argcp[ROFF_MAXARG];
- char *v, *argvp[ROFF_MAXARG];
-
- if (ROFF_PRELUDE & tree->state) {
- warnx("%s: macro `%s' called in prelude (line %zu)",
- tree->rbuf->name,
- toknames[tok],
- tree->rbuf->line);
- return(0);
- }
+ int sv;
- i = 0;
-
- while (-1 != (c = roffnextopt(tok, &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;
- i++;
- argv++;
- }
+ /*
+ * Read ahead past the conditional.
+ * FIXME: this does not work, as conditionals don't end on
+ * whitespace, but are parsed according to a formal grammar.
+ * It's good enough for now, however.
+ */
- argcp[i] = ROFF_ARGMAX;
- argvp[i] = NULL;
+ while ((*bufp)[pos] && ' ' != (*bufp)[pos])
+ pos++;
- if ( ! (*tree->cb->roffin)(tok, argcp, argvp))
- return(0);
+ sv = pos;
+ while (' ' == (*bufp)[pos])
+ pos++;
- if ( ! (ROFF_PARSED & tokens[tok].flags)) {
- /* TODO: print all tokens. */
- return((*tree->cb->roffout)(tok));
- }
+ /*
+ * Roff is weird. If we have just white-space after the
+ * conditional, it's considered the BODY and we exit without
+ * really doing anything. Warn about this. It's probably
+ * wrong.
+ */
- while (*argv) {
- if (ROFF_MAX != (c = rofffindcallable(*argv))) {
- if (NULL == tokens[c].cb) {
- warnx("%s: macro `%s' not supported "
- "(line %zu)",
- tree->rbuf->name,
- toknames[c],
- tree->rbuf->line);
- return(0);
- }
- if ( ! (*tokens[c].cb)(c, tree,
- argv + 1, ROFF_ENTER))
- return(0);
- }
- /* TODO: print token. */
- argv++;
+ if ('\0' == (*bufp)[pos] && sv != pos) {
+ if ( ! (*r->msg)(MANDOCERR_NOARGS, r->data, ln, ppos, NULL))
+ return(ROFF_ERR);
+ return(ROFF_IGN);
}
- return((*tree->cb->roffout)(tok));
-}
-
-
-/* ARGSUSED */
-static int
-roff_comment(ROFFCALL_ARGS)
-{
+ if ( ! roffnode_push(r, tok, ln, ppos))
+ return(ROFF_ERR);
- return(1);
-}
+ /* Don't evaluate: just assume NO. */
+ r->last->endspan = 1;
-/* ARGSUSED */
-static int
-roff_close(ROFFCALL_ARGS)
-{
+ if ('\\' == (*bufp)[pos] && '{' == (*bufp)[pos + 1]) {
+ ROFF_MDEBUG(r, "opening explicit scope");
+ r->last->endspan = -1;
+ pos += 2;
+ } else
+ ROFF_MDEBUG(r, "opening implicit scope");
- return(1);
-}
+ /*
+ * If there are no arguments on the line, the next-line scope is
+ * assumed.
+ */
+ if ('\0' == (*bufp)[pos])
+ return(ROFF_IGN);
-/* ARGSUSED */
-static int
-roff_special(ROFFCALL_ARGS)
-{
+ /* Otherwise re-run the roff parser after recalculating. */
- return((*tree->cb->roffspecial)(tok));
+ *offs = pos;
+ return(ROFF_RERUN);
}