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