Annotation of mandoc/roff.c, Revision 1.11
1.11 ! kristaps 1: /* $Id: roff.c,v 1.10 2008/11/27 13:29:44 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
22: #include <stdlib.h>
23: #include <stdio.h>
24: #include <string.h>
25: #include <time.h>
26:
27: #include "libmdocml.h"
28: #include "private.h"
29:
1.6 kristaps 30: /* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
31:
1.7 kristaps 32: /* FIXME: warn about "X section only" macros. */
33:
1.6 kristaps 34: /* FIXME: warn about empty lists. */
35:
1.7 kristaps 36: /* FIXME: ; : } ) (etc.) after text macros? */
37:
1.11 ! kristaps 38: /* FIXME: NAME section needs specific elements. */
! 39:
! 40: #define ROFF_MAXARG 32
1.1 kristaps 41:
42: enum roffd {
43: ROFF_ENTER = 0,
44: ROFF_EXIT
45: };
46:
47: enum rofftype {
48: ROFF_COMMENT,
49: ROFF_TEXT,
1.11 ! kristaps 50: ROFF_LAYOUT,
! 51: ROFF_SPECIAL
1.1 kristaps 52: };
53:
54: #define ROFFCALL_ARGS \
1.2 kristaps 55: int tok, struct rofftree *tree, \
56: const char *argv[], enum roffd type
1.1 kristaps 57:
58: struct rofftree;
59:
60: struct rofftok {
1.5 kristaps 61: int (*cb)(ROFFCALL_ARGS); /* Callback. */
62: const int *args; /* Args (or NULL). */
1.6 kristaps 63: const int *parents;
64: const int *children;
65: int ctx;
1.5 kristaps 66: enum rofftype type; /* Type of macro. */
1.1 kristaps 67: int flags;
1.7 kristaps 68: #define ROFF_PARSED (1 << 0) /* "Parsed". */
69: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
70: #define ROFF_QUOTES (1 << 2) /* Quoted args. */
1.10 kristaps 71: #define ROFF_SHALLOW (1 << 3) /* Nesting block. */
1.1 kristaps 72: };
73:
74: struct roffarg {
75: int flags;
1.5 kristaps 76: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 77: };
78:
79: struct roffnode {
1.5 kristaps 80: int tok; /* Token id. */
81: struct roffnode *parent; /* Parent (or NULL). */
82: size_t line; /* Parsed at line. */
1.1 kristaps 83: };
84:
85: struct rofftree {
1.5 kristaps 86: struct roffnode *last; /* Last parsed node. */
87: time_t date; /* `Dd' results. */
88: char os[64]; /* `Os' results. */
89: char title[64]; /* `Dt' results. */
90: char section[64]; /* `Dt' results. */
91: char volume[64]; /* `Dt' results. */
1.1 kristaps 92: int state;
1.5 kristaps 93: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
94: /* FIXME: if we had prev ptrs, this wouldn't be necessary. */
95: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
96: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
97: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
98: #define ROFF_BODY (1 << 5) /* In roff body. */
99: struct md_mbuf *mbuf; /* Output (or NULL). */
100: const struct md_args *args; /* Global args. */
101: const struct md_rbuf *rbuf; /* Input. */
1.6 kristaps 102: const struct roffcb *cb;
1.1 kristaps 103: };
104:
105: static int roff_Dd(ROFFCALL_ARGS);
106: static int roff_Dt(ROFFCALL_ARGS);
107: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 108:
1.2 kristaps 109: static int roff_layout(ROFFCALL_ARGS);
110: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 111: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 112: static int roff_close(ROFFCALL_ARGS);
1.11 ! kristaps 113: static int roff_special(ROFFCALL_ARGS);
1.1 kristaps 114:
1.4 kristaps 115: static struct roffnode *roffnode_new(int, struct rofftree *);
1.1 kristaps 116: static void roffnode_free(int, struct rofftree *);
117:
1.7 kristaps 118: static int roffscan(int, const int *);
1.1 kristaps 119: static int rofffindtok(const char *);
120: static int rofffindarg(const char *);
1.2 kristaps 121: static int rofffindcallable(const char *);
1.10 kristaps 122: static int roffargs(const struct rofftree *,
123: int, char *, char **);
1.5 kristaps 124: static int roffargok(int, int);
125: static int roffnextopt(int, const char ***, char **);
1.1 kristaps 126: static int roffparse(struct rofftree *, char *, size_t);
127: static int textparse(const struct rofftree *,
128: const char *, size_t);
129:
1.6 kristaps 130:
1.7 kristaps 131: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
132: ROFF_ARGMAX };
133: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
134: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_ARGMAX };
135: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
136: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
137: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
138: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
139: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
140: ROFF_ARGMAX };
141: static const int roffarg_St[] = {
142: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
143: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
144: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
145: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
146: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
147: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
148: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
149: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
150: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
151: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
152: ROFF_ARGMAX };
1.5 kristaps 153:
1.6 kristaps 154: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 155: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 156: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 157: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
158: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
159: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 160:
161: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 162: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
163: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 164: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 165: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 166:
1.5 kristaps 167: /* Table of all known tokens. */
1.4 kristaps 168: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 169: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
170: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
171: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
172: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 173: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
174: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
175: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 176: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
177: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.9 kristaps 178: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
179: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 180: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 181: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 182: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 183: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
184: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
185: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
186: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
187: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
188: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
189: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
190: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
191: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
192: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 193: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 203: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 205: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 206: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
214: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
216: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 226: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.6 kristaps 228: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 ! kristaps 231: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 236: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 241: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
242: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 247: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 251: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 253: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
254: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 ! kristaps 258: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 262: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 263: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
264: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.7 kristaps 265: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 266: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.7 kristaps 267: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 268: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
269: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
270: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.1 kristaps 271: };
272:
1.5 kristaps 273: /* Table of all known token arguments. */
1.4 kristaps 274: static const struct roffarg tokenargs[ROFF_ARGMAX] = {
1.9 kristaps 275: { 0 }, /* split */
276: { 0 }, /* nosplit */
277: { 0 }, /* ragged */
278: { 0 }, /* unfilled */
279: { 0 }, /* literal */
280: { ROFF_VALUE }, /* file */
281: { ROFF_VALUE }, /* offset */
282: { 0 }, /* bullet */
283: { 0 }, /* dash */
284: { 0 }, /* hyphen */
285: { 0 }, /* item */
286: { 0 }, /* enum */
287: { 0 }, /* tag */
288: { 0 }, /* diag */
289: { 0 }, /* hang */
290: { 0 }, /* ohang */
291: { 0 }, /* inset */
292: { 0 }, /* column */
293: { 0 }, /* width */
294: { 0 }, /* compact */
295: { 0 }, /* std */
296: { 0 }, /* p1003_1_88 */
297: { 0 }, /* p1003_1_90 */
298: { 0 }, /* p1003_1_96 */
299: { 0 }, /* p1003_1_2001 */
300: { 0 }, /* p1003_1_2004 */
301: { 0 }, /* p1003_1 */
302: { 0 }, /* p1003_1b */
303: { 0 }, /* p1003_1b_93 */
304: { 0 }, /* p1003_1c_95 */
305: { 0 }, /* p1003_1g_2000 */
306: { 0 }, /* p1003_2_92 */
307: { 0 }, /* p1387_2_95 */
308: { 0 }, /* p1003_2 */
309: { 0 }, /* p1387_2 */
310: { 0 }, /* isoC_90 */
311: { 0 }, /* isoC_amd1 */
312: { 0 }, /* isoC_tcor1 */
313: { 0 }, /* isoC_tcor2 */
314: { 0 }, /* isoC_99 */
315: { 0 }, /* ansiC */
316: { 0 }, /* ansiC_89 */
317: { 0 }, /* ansiC_99 */
318: { 0 }, /* ieee754 */
319: { 0 }, /* iso8802_3 */
320: { 0 }, /* xpg3 */
321: { 0 }, /* xpg4 */
322: { 0 }, /* xpg4_2 */
323: { 0 }, /* xpg4_3 */
324: { 0 }, /* xbd5 */
325: { 0 }, /* xcu5 */
326: { 0 }, /* xsh5 */
327: { 0 }, /* xns5 */
328: { 0 }, /* xns5_2d2_0 */
329: { 0 }, /* xcurses4_2 */
330: { 0 }, /* susv2 */
331: { 0 }, /* susv3 */
332: { 0 }, /* svid4 */
1.1 kristaps 333: };
334:
1.5 kristaps 335: const char *const toknamesp[ROFF_MAX] =
336: {
1.8 kristaps 337: "\\\"", "Dd", "Dt", "Os",
338: "Sh", "Ss", "Pp", "D1",
339: "Dl", "Bd", "Ed", "Bl",
340: "El", "It", "Ad", "An",
341: "Ar", "Cd", "Cm", "Dv",
342: "Er", "Ev", "Ex", "Fa",
343: "Fd", "Fl", "Fn", "Ft",
344: "Ic", "In", "Li", "Nd",
345: "Nm", "Op", "Ot", "Pa",
346: "Rv", "St", "Va", "Vt",
347: "Xr", "\%A", "\%B", "\%D",
348: "\%I", "\%J", "\%N", "\%O",
349: "\%P", "\%R", "\%T", "\%V",
350: "Ac", "Ao", "Aq", "At",
351: "Bc", "Bf", "Bo", "Bq",
352: "Bsx", "Bx", "Db", "Dc",
353: "Do", "Dq", "Ec", "Ef",
354: "Em", "Eo", "Fx", "Ms",
355: "No", "Ns", "Nx", "Ox",
356: "Pc", "Pf", "Po", "Pq",
357: "Qc", "Ql", "Qo", "Qq",
358: "Re", "Rs", "Sc", "So",
359: "Sq", "Sm", "Sx", "Sy",
360: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 361: "Fo", "Fc", "Oo", "Oc",
362: "Bk", "Ek",
1.5 kristaps 363: };
364:
365: const char *const tokargnamesp[ROFF_ARGMAX] =
366: {
1.9 kristaps 367: "split", "nosplit", "ragged",
368: "unfilled", "literal", "file",
369: "offset", "bullet", "dash",
370: "hyphen", "item", "enum",
371: "tag", "diag", "hang",
372: "ohang", "inset", "column",
373: "width", "compact", "std",
374: "p1003.1-88", "p1003.1-90", "p1003.1-96",
375: "p1003.1-2001", "p1003.1-2004", "p1003.1",
376: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
377: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
378: "p1003.2", "p1387.2", "isoC-90",
379: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
380: "isoC-99", "ansiC", "ansiC-89",
381: "ansiC-99", "ieee754", "iso8802-3",
382: "xpg3", "xpg4", "xpg4.2",
383: "xpg4.3", "xbd5", "xcu5",
384: "xsh5", "xns5", "xns5.2d2.0",
385: "xcurses4.2", "susv2", "susv3",
386: "svid4"
1.5 kristaps 387: };
388:
389: const char *const *toknames = toknamesp;
390: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 391:
1.1 kristaps 392:
393: int
394: roff_free(struct rofftree *tree, int flush)
395: {
396: int error;
397:
398: assert(tree->mbuf);
399: if ( ! flush)
400: tree->mbuf = NULL;
401:
402: /* LINTED */
403: while (tree->last)
404: if ( ! (*tokens[tree->last->tok].cb)
1.2 kristaps 405: (tree->last->tok, tree, NULL, ROFF_EXIT))
1.1 kristaps 406: /* Disallow flushing. */
407: tree->mbuf = NULL;
408:
409: error = tree->mbuf ? 0 : 1;
410:
411: if (tree->mbuf && (ROFF_PRELUDE & tree->state)) {
412: warnx("%s: prelude never finished",
413: tree->rbuf->name);
414: error = 1;
415: }
416:
417: free(tree);
418: return(error ? 0 : 1);
419: }
420:
421:
422: struct rofftree *
423: roff_alloc(const struct md_args *args, struct md_mbuf *out,
1.6 kristaps 424: const struct md_rbuf *in, const struct roffcb *cb)
1.1 kristaps 425: {
426: struct rofftree *tree;
427:
428: if (NULL == (tree = calloc(1, sizeof(struct rofftree)))) {
429: warn("malloc");
430: return(NULL);
431: }
432:
433: tree->state = ROFF_PRELUDE;
434: tree->args = args;
435: tree->mbuf = out;
436: tree->rbuf = in;
1.6 kristaps 437: tree->cb = cb;
1.1 kristaps 438:
439: return(tree);
440: }
441:
442:
443: int
444: roff_engine(struct rofftree *tree, char *buf, size_t sz)
445: {
446:
447: if (0 == sz) {
448: warnx("%s: blank line (line %zu)",
449: tree->rbuf->name,
450: tree->rbuf->line);
451: return(0);
452: } else if ('.' != *buf)
453: return(textparse(tree, buf, sz));
454:
455: return(roffparse(tree, buf, sz));
456: }
457:
458:
459: static int
460: textparse(const struct rofftree *tree, const char *buf, size_t sz)
461: {
462:
463: if (NULL == tree->last) {
464: warnx("%s: unexpected text (line %zu)",
465: tree->rbuf->name,
466: tree->rbuf->line);
467: return(0);
468: } else if (NULL == tree->last->parent) {
469: warnx("%s: disallowed text (line %zu)",
470: tree->rbuf->name,
471: tree->rbuf->line);
472: return(0);
473: }
474:
475: /* Print text. */
476:
477: return(1);
478: }
479:
480:
481: static int
1.10 kristaps 482: roffargs(const struct rofftree *tree,
483: int tok, char *buf, char **argv)
1.1 kristaps 484: {
485: int i;
486:
487: assert(tok >= 0 && tok < ROFF_MAX);
488: assert('.' == *buf);
489:
490: /* LINTED */
491: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 492: if ('\"' == *buf) {
493: argv[i] = ++buf;
494: while (*buf && '\"' != *buf)
495: buf++;
496: if (0 == *buf) {
497: warnx("%s: unclosed quoted arg for "
498: "`%s' (line %zu)",
499: tree->rbuf->name,
500: toknames[tok],
501: tree->rbuf->line);
502: return(0);
503: }
504: } else {
505: argv[i] = buf++;
506: while (*buf && ! isspace(*buf))
507: buf++;
508: if (0 == *buf)
509: continue;
1.1 kristaps 510: }
511: *buf++ = 0;
512: while (*buf && isspace(*buf))
513: buf++;
514: }
515:
516: assert(i > 0);
1.10 kristaps 517: if (ROFF_MAXARG == i && *buf) {
518: warnx("%s: too many args for `%s' (line %zu)",
519: tree->rbuf->name, toknames[tok],
520: tree->rbuf->line);
521: return(0);
522: }
523:
524: #ifdef DEBUG
525: (void)printf("argparse: %d arguments for `%s'\n",
526: i, toknames[tok]);
527: #endif
1.1 kristaps 528:
1.10 kristaps 529: argv[i] = NULL;
530: return(1);
1.1 kristaps 531: }
532:
533:
1.6 kristaps 534: /* XXX */
535: static int
536: roffscan(int tok, const int *tokv)
537: {
1.7 kristaps 538:
1.6 kristaps 539: if (NULL == tokv)
540: return(1);
541:
1.7 kristaps 542: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 543: if (tok == *tokv)
544: return(1);
545:
546: return(0);
547: }
548:
549:
1.1 kristaps 550: static int
551: roffparse(struct rofftree *tree, char *buf, size_t sz)
552: {
553: int tok, t;
1.6 kristaps 554: struct roffnode *n;
1.1 kristaps 555: char *argv[ROFF_MAXARG];
556: const char **argvp;
557:
558: assert(sz > 0);
559:
1.6 kristaps 560: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
561: warnx("%s: unknown line macro (line %zu)",
562: tree->rbuf->name, tree->rbuf->line);
563: return(0);
564: } else if (NULL == tokens[tok].cb) {
565: warnx("%s: macro `%s' not supported (line %zu)",
566: tree->rbuf->name, toknames[tok],
1.1 kristaps 567: tree->rbuf->line);
568: return(0);
1.6 kristaps 569: } else if (ROFF_COMMENT == tokens[tok].type)
570: return(1);
1.5 kristaps 571:
1.10 kristaps 572: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 573: return(0);
1.10 kristaps 574: else
1.6 kristaps 575: argvp = (const char **)argv + 1;
576:
577: /*
578: * Prelude macros break some assumptions: branch now.
579: */
1.1 kristaps 580:
1.6 kristaps 581: if (ROFF_PRELUDE & tree->state) {
582: assert(NULL == tree->last);
583: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
584: } else
585: assert(tree->last);
586:
587: assert(ROFF_BODY & tree->state);
588:
589: /*
590: * First check that our possible parents and parent's possible
591: * children are satisfied.
592: */
593:
594: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
595: warnx("%s: invalid parent `%s' for `%s' (line %zu)",
596: tree->rbuf->name,
597: toknames[tree->last->tok],
598: toknames[tok], tree->rbuf->line);
599: return(0);
600: }
601:
602: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
603: warnx("%s: invalid child `%s' for `%s' (line %zu)",
1.4 kristaps 604: tree->rbuf->name, toknames[tok],
1.6 kristaps 605: toknames[tree->last->tok],
1.1 kristaps 606: tree->rbuf->line);
607: return(0);
608: }
609:
610: /*
1.6 kristaps 611: * Branch if we're not a layout token.
1.1 kristaps 612: */
613:
1.6 kristaps 614: if (ROFF_LAYOUT != tokens[tok].type)
615: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 616:
1.6 kristaps 617: /*
618: * Check our scope rules.
619: */
1.1 kristaps 620:
1.6 kristaps 621: if (0 == tokens[tok].ctx)
622: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 623:
1.6 kristaps 624: if (tok == tokens[tok].ctx) {
625: for (n = tree->last; n; n = n->parent) {
626: assert(0 == tokens[n->tok].ctx ||
627: n->tok == tokens[n->tok].ctx);
628: if (n->tok == tok)
629: break;
1.10 kristaps 630: if (ROFF_SHALLOW & tokens[tok].flags) {
631: n = NULL;
632: break;
633: }
1.6 kristaps 634: }
1.10 kristaps 635:
636: /*
637: * Create a new scope, as no previous one exists to
638: * close out.
639: */
1.6 kristaps 640: if (NULL == n) {
641: #ifdef DEBUG
642: (void)printf("scope: new `%s'\n",
643: toknames[tok]);
644: #endif
645: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 646: }
1.10 kristaps 647:
648: /*
649: * Close out all intermediary scoped blocks.
650: */
651:
1.1 kristaps 652: do {
653: t = tree->last->tok;
1.6 kristaps 654: #ifdef DEBUG
655: (void)printf("scope: closing `%s'\n",
656: toknames[t]);
657: #endif
658: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 659: return(0);
660: } while (t != tok);
1.6 kristaps 661:
1.9 kristaps 662: #ifdef DEBUG
663: (void)printf("scope: new parent of `%s' is `%s'\n",
664: toknames[tok],
665: toknames[tree->last->tok]);
666: #endif
667:
1.6 kristaps 668: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 669: }
670:
1.9 kristaps 671: assert(tree->last);
1.6 kristaps 672: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
673:
674: do {
675: t = tree->last->tok;
676: #ifdef DEBUG
677: (void)printf("scope: closing `%s'\n", toknames[t]);
678: #endif
679: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
680: return(0);
681: } while (t != tokens[tok].ctx);
1.1 kristaps 682:
1.9 kristaps 683: assert(tree->last);
684: return(1);
1.1 kristaps 685: }
686:
687:
688: static int
689: rofffindarg(const char *name)
690: {
691: size_t i;
692:
693: /* FIXME: use a table, this is slow but ok for now. */
694:
695: /* LINTED */
696: for (i = 0; i < ROFF_ARGMAX; i++)
697: /* LINTED */
1.4 kristaps 698: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 699: return((int)i);
700:
701: return(ROFF_ARGMAX);
702: }
703:
704:
705: static int
1.6 kristaps 706: rofffindtok(const char *buf)
1.1 kristaps 707: {
1.6 kristaps 708: char token[4];
1.1 kristaps 709: size_t i;
710:
1.6 kristaps 711: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
712: token[i] = *buf;
713:
1.9 kristaps 714: if (i == 3)
1.6 kristaps 715: return(ROFF_MAX);
716:
717: token[i] = 0;
718:
1.1 kristaps 719: /* FIXME: use a table, this is slow but ok for now. */
720:
721: /* LINTED */
722: for (i = 0; i < ROFF_MAX; i++)
723: /* LINTED */
1.7 kristaps 724: if (0 == strcmp(toknames[i], token)) {
725: #ifdef DEBUG
726: (void)printf("lookup (good): `%s' (%d)\n",
727: token, (int)i);
728: #endif
1.1 kristaps 729: return((int)i);
1.7 kristaps 730: }
731:
732: #ifdef DEBUG
733: (void)printf("lookup (bad): `%s'\n", token);
734: #endif
1.1 kristaps 735:
736: return(ROFF_MAX);
737: }
738:
739:
1.2 kristaps 740: static int
741: rofffindcallable(const char *name)
742: {
743: int c;
744:
745: if (ROFF_MAX == (c = rofffindtok(name)))
746: return(ROFF_MAX);
1.8 kristaps 747: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 748: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
749: }
750:
751:
1.1 kristaps 752: static struct roffnode *
1.4 kristaps 753: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 754: {
755: struct roffnode *p;
756:
757: if (NULL == (p = malloc(sizeof(struct roffnode)))) {
758: warn("malloc");
759: return(NULL);
760: }
761:
1.4 kristaps 762: p->line = tree->rbuf->line;
1.1 kristaps 763: p->tok = tokid;
764: p->parent = tree->last;
765: tree->last = p;
1.9 kristaps 766:
767: #ifdef DEBUG
768: (void)printf("scope: new `%s' child of `%s'\n",
769: toknames[tree->last->tok],
770: tree->last->parent ?
771: toknames[tree->last->parent->tok] :
772: "<root>");
773: #endif
774:
1.1 kristaps 775: return(p);
776: }
777:
778:
1.5 kristaps 779: static int
780: roffargok(int tokid, int argid)
781: {
782: const int *c;
783:
784: if (NULL == (c = tokens[tokid].args))
785: return(0);
786:
787: for ( ; ROFF_ARGMAX != *c; c++)
788: if (argid == *c)
789: return(1);
790:
791: return(0);
792: }
793:
794:
1.1 kristaps 795: static void
796: roffnode_free(int tokid, struct rofftree *tree)
797: {
798: struct roffnode *p;
799:
800: assert(tree->last);
801: assert(tree->last->tok == tokid);
802:
1.9 kristaps 803: #ifdef DEBUG
804: (void)printf("scope: closing `%s' back to `%s'\n",
805: toknames[tree->last->tok],
806: tree->last->parent ?
807: toknames[tree->last->parent->tok] :
808: "<root>");
809: #endif
810:
1.1 kristaps 811: p = tree->last;
812: tree->last = tree->last->parent;
813: free(p);
814: }
815:
816:
1.6 kristaps 817: static int
818: roffnextopt(int tok, const char ***in, char **val)
819: {
820: const char *arg, **argv;
821: int v;
822:
823: *val = NULL;
824: argv = *in;
825: assert(argv);
826:
827: if (NULL == (arg = *argv))
828: return(-1);
829: if ('-' != *arg)
830: return(-1);
831:
832: /* FIXME: should we let this slide... ? */
833:
834: if (ROFF_ARGMAX == (v = rofffindarg(&arg[1])))
835: return(-1);
836:
837: /* FIXME: should we let this slide... ? */
838:
839: if ( ! roffargok(tok, v))
840: return(-1);
841: if ( ! (ROFF_VALUE & tokenargs[v].flags))
842: return(v);
843:
844: *in = ++argv;
845:
846: /* FIXME: what if this looks like a roff token or argument? */
847:
848: return(*argv ? v : ROFF_ARGMAX);
849: }
850:
851:
1.1 kristaps 852: /* ARGSUSED */
853: static int
854: roff_Dd(ROFFCALL_ARGS)
855: {
856:
1.4 kristaps 857: if (ROFF_BODY & tree->state) {
858: assert( ! (ROFF_PRELUDE & tree->state));
859: assert(ROFF_PRELUDE_Dd & tree->state);
860: return(roff_text(tok, tree, argv, type));
861: }
862:
1.1 kristaps 863: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 864: assert( ! (ROFF_BODY & tree->state));
865:
1.6 kristaps 866: if (ROFF_PRELUDE_Dd & tree->state) {
867: warnx("%s: prelude `Dd' repeated (line %zu)",
868: tree->rbuf->name, tree->rbuf->line);
869: return(0);
870: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.1 kristaps 871: warnx("%s: prelude `Dd' out-of-order (line %zu)",
872: tree->rbuf->name, tree->rbuf->line);
873: return(0);
874: }
875:
1.4 kristaps 876: /* TODO: parse date. */
877:
1.1 kristaps 878: assert(NULL == tree->last);
879: tree->state |= ROFF_PRELUDE_Dd;
880:
881: return(1);
882: }
883:
884:
885: /* ARGSUSED */
886: static int
887: roff_Dt(ROFFCALL_ARGS)
888: {
889:
1.4 kristaps 890: if (ROFF_BODY & tree->state) {
891: assert( ! (ROFF_PRELUDE & tree->state));
892: assert(ROFF_PRELUDE_Dt & tree->state);
893: return(roff_text(tok, tree, argv, type));
894: }
895:
1.1 kristaps 896: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 897: assert( ! (ROFF_BODY & tree->state));
898:
1.6 kristaps 899: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.1 kristaps 900: warnx("%s: prelude `Dt' out-of-order (line %zu)",
901: tree->rbuf->name, tree->rbuf->line);
902: return(0);
1.6 kristaps 903: } else if (ROFF_PRELUDE_Dt & tree->state) {
904: warnx("%s: prelude `Dt' repeated (line %zu)",
905: tree->rbuf->name, tree->rbuf->line);
906: return(0);
1.1 kristaps 907: }
908:
1.4 kristaps 909: /* TODO: parse date. */
910:
1.1 kristaps 911: assert(NULL == tree->last);
912: tree->state |= ROFF_PRELUDE_Dt;
913:
914: return(1);
915: }
916:
917:
918: /* ARGSUSED */
919: static int
920: roff_Os(ROFFCALL_ARGS)
921: {
922:
923: if (ROFF_EXIT == type) {
1.4 kristaps 924: assert(ROFF_PRELUDE_Os & tree->state);
925: return(roff_layout(tok, tree, argv, type));
926: } else if (ROFF_BODY & tree->state) {
927: assert( ! (ROFF_PRELUDE & tree->state));
928: assert(ROFF_PRELUDE_Os & tree->state);
929: return(roff_text(tok, tree, argv, type));
930: }
1.1 kristaps 931:
932: assert(ROFF_PRELUDE & tree->state);
933: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
934: ! (ROFF_PRELUDE_Dd & tree->state)) {
935: warnx("%s: prelude `Os' out-of-order (line %zu)",
936: tree->rbuf->name, tree->rbuf->line);
937: return(0);
938: }
939:
1.4 kristaps 940: /* TODO: extract OS. */
1.1 kristaps 941:
942: tree->state |= ROFF_PRELUDE_Os;
943: tree->state &= ~ROFF_PRELUDE;
944: tree->state |= ROFF_BODY;
945:
1.4 kristaps 946: assert(NULL == tree->last);
947:
948: return(roff_layout(tok, tree, argv, type));
1.1 kristaps 949: }
950:
951:
952: /* ARGSUSED */
953: static int
1.2 kristaps 954: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 955: {
1.2 kristaps 956: int i, c, argcp[ROFF_MAXARG];
957: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 958:
1.4 kristaps 959: if (ROFF_PRELUDE & tree->state) {
960: warnx("%s: macro `%s' called in prelude (line %zu)",
1.5 kristaps 961: tree->rbuf->name,
962: toknames[tok],
1.4 kristaps 963: tree->rbuf->line);
964: return(0);
965: }
966:
1.2 kristaps 967: if (ROFF_EXIT == type) {
968: roffnode_free(tok, tree);
1.6 kristaps 969: return((*tree->cb->roffblkout)(tok));
1.2 kristaps 970: }
1.1 kristaps 971:
1.2 kristaps 972: i = 0;
1.5 kristaps 973:
974: while (-1 != (c = roffnextopt(tok, &argv, &v))) {
1.2 kristaps 975: if (ROFF_ARGMAX == c) {
1.5 kristaps 976: warnx("%s: error parsing `%s' args (line %zu)",
977: tree->rbuf->name,
978: toknames[tok],
979: tree->rbuf->line);
980: return(0);
981: } else if ( ! roffargok(tok, c)) {
982: warnx("%s: arg `%s' not for `%s' (line %zu)",
1.1 kristaps 983: tree->rbuf->name,
1.5 kristaps 984: tokargnames[c],
1.4 kristaps 985: toknames[tok],
1.1 kristaps 986: tree->rbuf->line);
987: return(0);
988: }
1.2 kristaps 989: argcp[i] = c;
990: argvp[i] = v;
1.5 kristaps 991: i++;
1.1 kristaps 992: argv++;
993: }
994:
1.5 kristaps 995: argcp[i] = ROFF_ARGMAX;
996: argvp[i] = NULL;
997:
1.4 kristaps 998: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 999: return(0);
1000:
1.6 kristaps 1001: if ( ! (*tree->cb->roffin)(tok, argcp, argvp))
1.2 kristaps 1002: return(0);
1003:
1004: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1005: /* TODO: print all tokens. */
1006:
1.6 kristaps 1007: if ( ! ((*tree->cb->roffout)(tok)))
1.2 kristaps 1008: return(0);
1.6 kristaps 1009: return((*tree->cb->roffblkin)(tok));
1.2 kristaps 1010: }
1011:
1.1 kristaps 1012: while (*argv) {
1.8 kristaps 1013: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1014: if (NULL == tokens[c].cb) {
1015: warnx("%s: macro `%s' not supported "
1016: "(line %zu)",
1017: tree->rbuf->name,
1018: toknames[c],
1019: tree->rbuf->line);
1020: return(0);
1021: }
1.2 kristaps 1022: if ( ! (*tokens[c].cb)(c, tree,
1023: argv + 1, ROFF_ENTER))
1024: return(0);
1.8 kristaps 1025: }
1.2 kristaps 1026: /* TODO: print token. */
1027: argv++;
1028: }
1029:
1.6 kristaps 1030: if ( ! ((*tree->cb->roffout)(tok)))
1.2 kristaps 1031: return(0);
1032:
1.6 kristaps 1033: return((*tree->cb->roffblkin)(tok));
1.2 kristaps 1034: }
1035:
1036:
1037: /* ARGSUSED */
1038: static int
1039: roff_text(ROFFCALL_ARGS)
1040: {
1041: int i, c, argcp[ROFF_MAXARG];
1042: char *v, *argvp[ROFF_MAXARG];
1043:
1.4 kristaps 1044: if (ROFF_PRELUDE & tree->state) {
1045: warnx("%s: macro `%s' called in prelude (line %zu)",
1.5 kristaps 1046: tree->rbuf->name,
1047: toknames[tok],
1.4 kristaps 1048: tree->rbuf->line);
1049: return(0);
1050: }
1051:
1.2 kristaps 1052: i = 0;
1.5 kristaps 1053:
1054: while (-1 != (c = roffnextopt(tok, &argv, &v))) {
1.2 kristaps 1055: if (ROFF_ARGMAX == c) {
1.5 kristaps 1056: warnx("%s: error parsing `%s' args (line %zu)",
1.2 kristaps 1057: tree->rbuf->name,
1.4 kristaps 1058: toknames[tok],
1.2 kristaps 1059: tree->rbuf->line);
1060: return(0);
1.5 kristaps 1061: }
1.2 kristaps 1062: argcp[i] = c;
1063: argvp[i] = v;
1.5 kristaps 1064: i++;
1.1 kristaps 1065: argv++;
1066: }
1067:
1.5 kristaps 1068: argcp[i] = ROFF_ARGMAX;
1069: argvp[i] = NULL;
1070:
1.6 kristaps 1071: if ( ! (*tree->cb->roffin)(tok, argcp, argvp))
1.2 kristaps 1072: return(0);
1.1 kristaps 1073:
1.2 kristaps 1074: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1075: /* TODO: print all tokens. */
1.6 kristaps 1076: return((*tree->cb->roffout)(tok));
1.2 kristaps 1077: }
1.1 kristaps 1078:
1.2 kristaps 1079: while (*argv) {
1.8 kristaps 1080: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1081: if (NULL == tokens[c].cb) {
1082: warnx("%s: macro `%s' not supported "
1083: "(line %zu)",
1084: tree->rbuf->name,
1085: toknames[c],
1086: tree->rbuf->line);
1087: return(0);
1088: }
1.2 kristaps 1089: if ( ! (*tokens[c].cb)(c, tree,
1090: argv + 1, ROFF_ENTER))
1091: return(0);
1.8 kristaps 1092: }
1.2 kristaps 1093: /* TODO: print token. */
1094: argv++;
1095: }
1096:
1.6 kristaps 1097: return((*tree->cb->roffout)(tok));
1098: }
1099:
1100:
1.9 kristaps 1101: /* ARGSUSED */
1.6 kristaps 1102: static int
1103: roff_comment(ROFFCALL_ARGS)
1104: {
1105:
1106: return(1);
1.1 kristaps 1107: }
1.9 kristaps 1108:
1109:
1110: /* ARGSUSED */
1111: static int
1112: roff_close(ROFFCALL_ARGS)
1113: {
1114:
1115: return(1);
1116: }
1.11 ! kristaps 1117:
! 1118:
! 1119: /* ARGSUSED */
! 1120: static int
! 1121: roff_special(ROFFCALL_ARGS)
! 1122: {
! 1123:
! 1124: return((*tree->cb->roffspecial)(tok));
! 1125: }
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