Annotation of mandoc/roff.c, Revision 1.22
1.22 ! kristaps 1: /* $Id: roff.c,v 1.21 2008/11/30 18:50:44 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>
1.12 kristaps 22: #include <stdarg.h>
1.1 kristaps 23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26: #include <time.h>
27:
28: #include "libmdocml.h"
29: #include "private.h"
30:
1.6 kristaps 31: /* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
32:
1.7 kristaps 33: /* FIXME: warn about "X section only" macros. */
34:
1.6 kristaps 35: /* FIXME: warn about empty lists. */
36:
1.21 kristaps 37: /* FIXME: roff_layout and roff_text have identical-ish lower bodies. */
1.7 kristaps 38:
1.11 kristaps 39: /* FIXME: NAME section needs specific elements. */
40:
41: #define ROFF_MAXARG 32
1.1 kristaps 42:
43: enum roffd {
44: ROFF_ENTER = 0,
45: ROFF_EXIT
46: };
47:
48: enum rofftype {
49: ROFF_COMMENT,
50: ROFF_TEXT,
1.11 kristaps 51: ROFF_LAYOUT,
52: ROFF_SPECIAL
1.1 kristaps 53: };
54:
55: #define ROFFCALL_ARGS \
1.2 kristaps 56: int tok, struct rofftree *tree, \
1.18 kristaps 57: char *argv[], enum roffd type
1.1 kristaps 58:
59: struct rofftree;
60:
61: struct rofftok {
1.5 kristaps 62: int (*cb)(ROFFCALL_ARGS); /* Callback. */
63: const int *args; /* Args (or NULL). */
1.6 kristaps 64: const int *parents;
65: const int *children;
66: int ctx;
1.5 kristaps 67: enum rofftype type; /* Type of macro. */
1.1 kristaps 68: int flags;
1.7 kristaps 69: #define ROFF_PARSED (1 << 0) /* "Parsed". */
70: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
1.21 kristaps 71: #define ROFF_SHALLOW (1 << 2) /* 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). */
1.1 kristaps 82: };
83:
84: struct rofftree {
1.5 kristaps 85: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 86: char *cur;
87:
1.5 kristaps 88: time_t date; /* `Dd' results. */
89: char os[64]; /* `Os' results. */
90: char title[64]; /* `Dt' results. */
91: char section[64]; /* `Dt' results. */
92: char volume[64]; /* `Dt' results. */
1.14 kristaps 93:
1.1 kristaps 94: int state;
1.5 kristaps 95: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
96: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
97: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
98: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
99: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 100:
1.15 kristaps 101: struct roffcb cb;
102: void *arg;
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 *);
1.15 kristaps 116: static void roffnode_free(struct rofftree *);
1.1 kristaps 117:
1.12 kristaps 118: static void roff_warn(const struct rofftree *,
119: const char *, char *, ...);
120: static void roff_err(const struct rofftree *,
121: const char *, char *, ...);
122:
1.7 kristaps 123: static int roffscan(int, const int *);
1.1 kristaps 124: static int rofffindtok(const char *);
125: static int rofffindarg(const char *);
1.2 kristaps 126: static int rofffindcallable(const char *);
1.10 kristaps 127: static int roffargs(const struct rofftree *,
128: int, char *, char **);
1.5 kristaps 129: static int roffargok(int, int);
1.12 kristaps 130: static int roffnextopt(const struct rofftree *,
1.18 kristaps 131: int, char ***, char **);
1.17 kristaps 132: static int roffparse(struct rofftree *, char *);
133: static int textparse(const struct rofftree *, char *);
1.1 kristaps 134:
1.6 kristaps 135:
1.7 kristaps 136: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
137: ROFF_ARGMAX };
138: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 139: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
140: ROFF_Compact, ROFF_ARGMAX };
141: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 142: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
143: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
144: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
145: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
146: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 147: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 148: static const int roffarg_St[] = {
149: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
150: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
151: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
152: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
153: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
154: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
155: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
156: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
157: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
158: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
159: ROFF_ARGMAX };
1.5 kristaps 160:
1.6 kristaps 161: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 162: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 163: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 164: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
165: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
166: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 167:
168: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 169: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
170: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 171: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 172: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 173:
1.5 kristaps 174: /* Table of all known tokens. */
1.14 kristaps 175: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 176: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
177: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
178: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
1.21 kristaps 179: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Os */
180: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, 0 }, /* Sh */
181: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, 0 }, /* Ss */
1.6 kristaps 182: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 183: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
184: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 185: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 186: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 187: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 188: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.21 kristaps 189: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_PARSED | ROFF_SHALLOW }, /* It */
1.20 kristaps 190: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */ /* FIXME */
191: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
192: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
1.21 kristaps 193: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Cd */ /* XXX man.4 only */
1.7 kristaps 194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
1.20 kristaps 195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
1.7 kristaps 198: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
1.20 kristaps 199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.20 kristaps 201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.20 kristaps 206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.21 kristaps 207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Nd */
1.20 kristaps 208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 210: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.20 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 212: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 213: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
1.20 kristaps 214: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
216: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 233: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.18 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.20 kristaps 236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 238: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 243: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
1.20 kristaps 244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.20 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 248: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
249: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.20 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 253: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 254: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 258: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 260: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
261: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 262: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
263: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 264: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 265: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 266: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.20 kristaps 267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 270: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
271: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 272: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 273: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 274: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 275: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 276: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 277: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 278: };
1.1 kristaps 279:
1.5 kristaps 280: /* Table of all known token arguments. */
1.14 kristaps 281: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 282: 0, 0, 0, 0,
283: 0, ROFF_VALUE, ROFF_VALUE, 0,
284: 0, 0, 0, 0,
285: 0, 0, 0, 0,
1.18 kristaps 286: 0, 0, ROFF_VALUE, 0,
1.12 kristaps 287: 0, 0, 0, 0,
288: 0, 0, 0, 0,
289: 0, 0, 0, 0,
290: 0, 0, 0, 0,
291: 0, 0, 0, 0,
292: 0, 0, 0, 0,
293: 0, 0, 0, 0,
294: 0, 0, 0, 0,
295: 0, 0, 0, 0,
296: 0, 0, 0, 0,
297: };
1.1 kristaps 298:
1.14 kristaps 299: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 300: "\\\"", "Dd", "Dt", "Os",
301: "Sh", "Ss", "Pp", "D1",
302: "Dl", "Bd", "Ed", "Bl",
303: "El", "It", "Ad", "An",
304: "Ar", "Cd", "Cm", "Dv",
305: "Er", "Ev", "Ex", "Fa",
306: "Fd", "Fl", "Fn", "Ft",
307: "Ic", "In", "Li", "Nd",
308: "Nm", "Op", "Ot", "Pa",
309: "Rv", "St", "Va", "Vt",
310: "Xr", "\%A", "\%B", "\%D",
311: "\%I", "\%J", "\%N", "\%O",
312: "\%P", "\%R", "\%T", "\%V",
313: "Ac", "Ao", "Aq", "At",
314: "Bc", "Bf", "Bo", "Bq",
315: "Bsx", "Bx", "Db", "Dc",
316: "Do", "Dq", "Ec", "Ef",
317: "Em", "Eo", "Fx", "Ms",
318: "No", "Ns", "Nx", "Ox",
319: "Pc", "Pf", "Po", "Pq",
320: "Qc", "Ql", "Qo", "Qq",
321: "Re", "Rs", "Sc", "So",
322: "Sq", "Sm", "Sx", "Sy",
323: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 324: "Fo", "Fc", "Oo", "Oc",
325: "Bk", "Ek",
1.5 kristaps 326: };
327:
1.14 kristaps 328: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 329: "split", "nosplit", "ragged",
330: "unfilled", "literal", "file",
331: "offset", "bullet", "dash",
332: "hyphen", "item", "enum",
333: "tag", "diag", "hang",
334: "ohang", "inset", "column",
335: "width", "compact", "std",
336: "p1003.1-88", "p1003.1-90", "p1003.1-96",
337: "p1003.1-2001", "p1003.1-2004", "p1003.1",
338: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
339: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
340: "p1003.2", "p1387.2", "isoC-90",
341: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
342: "isoC-99", "ansiC", "ansiC-89",
343: "ansiC-99", "ieee754", "iso8802-3",
344: "xpg3", "xpg4", "xpg4.2",
345: "xpg4.3", "xbd5", "xcu5",
346: "xsh5", "xns5", "xns5.2d2.0",
347: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 348: "svid4", "filled", "words",
1.5 kristaps 349: };
350:
351: const char *const *toknames = toknamesp;
352: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 353:
1.1 kristaps 354:
355: int
356: roff_free(struct rofftree *tree, int flush)
357: {
1.16 kristaps 358: int error, t;
1.15 kristaps 359: struct roffnode *n;
1.1 kristaps 360:
1.17 kristaps 361: error = 0;
362:
1.16 kristaps 363: if ( ! flush)
364: goto end;
1.1 kristaps 365:
1.16 kristaps 366: error = 1;
1.1 kristaps 367:
1.16 kristaps 368: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 369: roff_warn(tree, NULL, "prelude never finished");
1.16 kristaps 370: goto end;
371: }
372:
373: for (n = tree->last; n->parent; n = n->parent) {
374: if (0 != tokens[n->tok].ctx)
1.17 kristaps 375: continue;
1.16 kristaps 376: roff_warn(tree, NULL, "closing explicit scope `%s'",
377: toknames[n->tok]);
378: goto end;
379: }
380:
381: while (tree->last) {
382: t = tree->last->tok;
383: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
384: goto end;
1.1 kristaps 385: }
386:
1.16 kristaps 387: error = 0;
388:
389: end:
390:
1.15 kristaps 391: while (tree->last)
392: roffnode_free(tree);
393:
1.1 kristaps 394: free(tree);
1.17 kristaps 395:
1.1 kristaps 396: return(error ? 0 : 1);
397: }
398:
399:
400: struct rofftree *
1.15 kristaps 401: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 402: {
403: struct rofftree *tree;
404:
1.17 kristaps 405: assert(args);
406: assert(cb);
407:
1.12 kristaps 408: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
409: err(1, "calloc");
1.1 kristaps 410:
411: tree->state = ROFF_PRELUDE;
1.15 kristaps 412: tree->arg = args;
413:
414: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 415:
416: return(tree);
417: }
418:
419:
420: int
1.17 kristaps 421: roff_engine(struct rofftree *tree, char *buf)
1.1 kristaps 422: {
423:
1.17 kristaps 424: tree->cur = buf;
425: assert(buf);
1.12 kristaps 426:
1.17 kristaps 427: if (0 == *buf) {
1.12 kristaps 428: roff_warn(tree, buf, "blank line");
1.1 kristaps 429: return(0);
430: } else if ('.' != *buf)
1.17 kristaps 431: return(textparse(tree, buf));
1.1 kristaps 432:
1.17 kristaps 433: return(roffparse(tree, buf));
1.1 kristaps 434: }
435:
436:
437: static int
1.17 kristaps 438: textparse(const struct rofftree *tree, char *buf)
1.1 kristaps 439: {
1.17 kristaps 440:
1.21 kristaps 441: return((*tree->cb.roffdata)(tree->arg, 1, buf));
1.1 kristaps 442: }
443:
444:
445: static int
1.10 kristaps 446: roffargs(const struct rofftree *tree,
447: int tok, char *buf, char **argv)
1.1 kristaps 448: {
449: int i;
1.12 kristaps 450: char *p;
1.1 kristaps 451:
452: assert(tok >= 0 && tok < ROFF_MAX);
453: assert('.' == *buf);
454:
1.12 kristaps 455: p = buf;
456:
1.1 kristaps 457: /* LINTED */
458: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 459: if ('\"' == *buf) {
460: argv[i] = ++buf;
461: while (*buf && '\"' != *buf)
462: buf++;
463: if (0 == *buf) {
1.13 kristaps 464: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 465: "quote in argument "
466: "list for `%s'",
467: toknames[tok]);
1.10 kristaps 468: return(0);
469: }
470: } else {
471: argv[i] = buf++;
472: while (*buf && ! isspace(*buf))
473: buf++;
474: if (0 == *buf)
475: continue;
1.1 kristaps 476: }
477: *buf++ = 0;
478: while (*buf && isspace(*buf))
479: buf++;
480: }
481:
482: assert(i > 0);
1.10 kristaps 483: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 484: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 485: [tok]);
1.10 kristaps 486: return(0);
487: }
488:
489: argv[i] = NULL;
490: return(1);
1.1 kristaps 491: }
492:
493:
1.6 kristaps 494: /* XXX */
495: static int
496: roffscan(int tok, const int *tokv)
497: {
1.7 kristaps 498:
1.6 kristaps 499: if (NULL == tokv)
500: return(1);
501:
1.7 kristaps 502: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 503: if (tok == *tokv)
504: return(1);
505:
506: return(0);
507: }
508:
509:
1.1 kristaps 510: static int
1.17 kristaps 511: roffparse(struct rofftree *tree, char *buf)
1.1 kristaps 512: {
513: int tok, t;
1.6 kristaps 514: struct roffnode *n;
1.1 kristaps 515: char *argv[ROFF_MAXARG];
1.18 kristaps 516: char **argvp;
1.1 kristaps 517:
1.6 kristaps 518: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 519: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 520: return(0);
521: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 522: roff_err(tree, buf + 1, "unsupported macro `%s'",
523: toknames[tok]);
1.1 kristaps 524: return(0);
1.6 kristaps 525: } else if (ROFF_COMMENT == tokens[tok].type)
526: return(1);
1.5 kristaps 527:
1.10 kristaps 528: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 529: return(0);
1.12 kristaps 530:
1.18 kristaps 531: argvp = (char **)argv;
1.6 kristaps 532:
533: /*
1.12 kristaps 534: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 535: */
1.1 kristaps 536:
1.6 kristaps 537: if (ROFF_PRELUDE & tree->state) {
538: assert(NULL == tree->last);
539: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
540: } else
541: assert(tree->last);
542:
543: assert(ROFF_BODY & tree->state);
544:
545: /*
546: * First check that our possible parents and parent's possible
547: * children are satisfied.
548: */
549:
550: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 551: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
552: toknames[tok],
553: toknames[tree->last->tok]);
1.6 kristaps 554: return(0);
555: }
556:
557: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.18 kristaps 558: roff_err(tree, *argvp, "`%s' is invalid child of `%s'",
559: toknames[tok],
560: toknames[tree->last->tok]);
1.1 kristaps 561: return(0);
562: }
563:
564: /*
1.6 kristaps 565: * Branch if we're not a layout token.
1.1 kristaps 566: */
567:
1.6 kristaps 568: if (ROFF_LAYOUT != tokens[tok].type)
569: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 570:
1.6 kristaps 571: /*
572: * Check our scope rules.
573: */
1.1 kristaps 574:
1.6 kristaps 575: if (0 == tokens[tok].ctx)
576: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 577:
1.12 kristaps 578: /*
579: * First consider implicit-end tags, like as follows:
580: * .Sh SECTION 1
581: * .Sh SECTION 2
582: * In this, we want to close the scope of the NAME section. If
583: * there's an intermediary implicit-end tag, such as
584: * .Sh SECTION 1
585: * .Ss Subsection 1
586: * .Sh SECTION 2
587: * then it must be closed as well.
588: */
589:
1.6 kristaps 590: if (tok == tokens[tok].ctx) {
1.12 kristaps 591: /*
592: * First search up to the point where we must close.
593: * If one doesn't exist, then we can open a new scope.
594: */
595:
1.6 kristaps 596: for (n = tree->last; n; n = n->parent) {
597: assert(0 == tokens[n->tok].ctx ||
598: n->tok == tokens[n->tok].ctx);
599: if (n->tok == tok)
600: break;
1.10 kristaps 601: if (ROFF_SHALLOW & tokens[tok].flags) {
602: n = NULL;
603: break;
604: }
1.6 kristaps 605: }
1.10 kristaps 606:
607: /*
608: * Create a new scope, as no previous one exists to
609: * close out.
610: */
1.12 kristaps 611:
612: if (NULL == n)
1.6 kristaps 613: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 614:
615: /*
1.12 kristaps 616: * Close out all intermediary scoped blocks, then hang
617: * the current scope from our predecessor's parent.
1.10 kristaps 618: */
619:
1.1 kristaps 620: do {
621: t = tree->last->tok;
1.6 kristaps 622: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 623: return(0);
624: } while (t != tok);
1.6 kristaps 625:
626: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 627: }
628:
1.12 kristaps 629: /*
630: * Now consider explicit-end tags, where we want to close back
631: * to a specific tag. Example:
632: * .Bl
633: * .It Item.
634: * .El
635: * In this, the `El' tag closes out the scope of `Bl'.
636: */
637:
1.9 kristaps 638: assert(tree->last);
1.6 kristaps 639: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
640:
1.14 kristaps 641: /* LINTED */
1.6 kristaps 642: do {
643: t = tree->last->tok;
644: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
645: return(0);
646: } while (t != tokens[tok].ctx);
1.1 kristaps 647:
1.9 kristaps 648: assert(tree->last);
649: return(1);
1.1 kristaps 650: }
651:
652:
653: static int
654: rofffindarg(const char *name)
655: {
656: size_t i;
657:
658: /* FIXME: use a table, this is slow but ok for now. */
659:
660: /* LINTED */
661: for (i = 0; i < ROFF_ARGMAX; i++)
662: /* LINTED */
1.4 kristaps 663: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 664: return((int)i);
665:
666: return(ROFF_ARGMAX);
667: }
668:
669:
670: static int
1.6 kristaps 671: rofffindtok(const char *buf)
1.1 kristaps 672: {
1.6 kristaps 673: char token[4];
1.1 kristaps 674: size_t i;
675:
1.6 kristaps 676: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
677: token[i] = *buf;
678:
1.9 kristaps 679: if (i == 3)
1.6 kristaps 680: return(ROFF_MAX);
681:
682: token[i] = 0;
683:
1.1 kristaps 684: /* FIXME: use a table, this is slow but ok for now. */
685:
686: /* LINTED */
687: for (i = 0; i < ROFF_MAX; i++)
688: /* LINTED */
1.12 kristaps 689: if (0 == strcmp(toknames[i], token))
1.1 kristaps 690: return((int)i);
1.7 kristaps 691:
1.1 kristaps 692: return(ROFF_MAX);
693: }
694:
695:
1.20 kristaps 696: static int
697: roffispunct(const char *p)
698: {
699:
700: if (0 == *p)
701: return(0);
702: if (0 != *(p + 1))
703: return(0);
704:
705: switch (*p) {
706: case('{'):
707: /* FALLTHROUGH */
708: case('.'):
709: /* FALLTHROUGH */
710: case(','):
711: /* FALLTHROUGH */
712: case(';'):
713: /* FALLTHROUGH */
714: case(':'):
715: /* FALLTHROUGH */
716: case('?'):
717: /* FALLTHROUGH */
718: case('!'):
719: /* FALLTHROUGH */
720: case('('):
721: /* FALLTHROUGH */
722: case(')'):
723: /* FALLTHROUGH */
724: case('['):
725: /* FALLTHROUGH */
726: case(']'):
727: /* FALLTHROUGH */
728: case('}'):
729: return(1);
730: default:
731: break;
732: }
733:
734: return(0);
735: }
736:
737:
1.2 kristaps 738: static int
739: rofffindcallable(const char *name)
740: {
741: int c;
742:
743: if (ROFF_MAX == (c = rofffindtok(name)))
744: return(ROFF_MAX);
1.8 kristaps 745: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 746: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
747: }
748:
749:
1.1 kristaps 750: static struct roffnode *
1.4 kristaps 751: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 752: {
753: struct roffnode *p;
754:
1.12 kristaps 755: if (NULL == (p = malloc(sizeof(struct roffnode))))
756: err(1, "malloc");
1.1 kristaps 757:
758: p->tok = tokid;
759: p->parent = tree->last;
760: tree->last = p;
1.9 kristaps 761:
1.1 kristaps 762: return(p);
763: }
764:
765:
1.5 kristaps 766: static int
767: roffargok(int tokid, int argid)
768: {
769: const int *c;
770:
771: if (NULL == (c = tokens[tokid].args))
772: return(0);
773:
774: for ( ; ROFF_ARGMAX != *c; c++)
775: if (argid == *c)
776: return(1);
777:
778: return(0);
779: }
780:
781:
1.1 kristaps 782: static void
1.15 kristaps 783: roffnode_free(struct rofftree *tree)
1.1 kristaps 784: {
785: struct roffnode *p;
786:
787: assert(tree->last);
788:
789: p = tree->last;
790: tree->last = tree->last->parent;
791: free(p);
792: }
793:
794:
1.6 kristaps 795: static int
1.12 kristaps 796: roffnextopt(const struct rofftree *tree, int tok,
1.18 kristaps 797: char ***in, char **val)
1.6 kristaps 798: {
1.18 kristaps 799: char *arg, **argv;
1.6 kristaps 800: int v;
801:
802: *val = NULL;
803: argv = *in;
804: assert(argv);
805:
806: if (NULL == (arg = *argv))
807: return(-1);
808: if ('-' != *arg)
809: return(-1);
810:
1.12 kristaps 811: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
812: roff_warn(tree, arg, "argument-like parameter `%s' to "
813: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 814: return(-1);
1.12 kristaps 815: }
816:
817: if ( ! roffargok(tok, v)) {
818: roff_warn(tree, arg, "invalid argument parameter `%s' to "
819: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 820: return(-1);
1.12 kristaps 821: }
822:
823: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 824: return(v);
825:
826: *in = ++argv;
827:
1.12 kristaps 828: if (NULL == *argv) {
829: roff_err(tree, arg, "empty value of `%s' for `%s'",
830: tokargnames[v], toknames[tok]);
831: return(ROFF_ARGMAX);
832: }
1.6 kristaps 833:
1.12 kristaps 834: return(v);
1.6 kristaps 835: }
836:
837:
1.1 kristaps 838: /* ARGSUSED */
839: static int
840: roff_Dd(ROFFCALL_ARGS)
841: {
842:
1.4 kristaps 843: if (ROFF_BODY & tree->state) {
844: assert( ! (ROFF_PRELUDE & tree->state));
845: assert(ROFF_PRELUDE_Dd & tree->state);
846: return(roff_text(tok, tree, argv, type));
847: }
848:
1.1 kristaps 849: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 850: assert( ! (ROFF_BODY & tree->state));
851:
1.6 kristaps 852: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 853: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 854: return(0);
855: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 856: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 857: return(0);
858: }
859:
1.4 kristaps 860: /* TODO: parse date. */
861:
1.1 kristaps 862: assert(NULL == tree->last);
863: tree->state |= ROFF_PRELUDE_Dd;
864:
865: return(1);
866: }
867:
868:
869: /* ARGSUSED */
870: static int
871: roff_Dt(ROFFCALL_ARGS)
872: {
873:
1.4 kristaps 874: if (ROFF_BODY & tree->state) {
875: assert( ! (ROFF_PRELUDE & tree->state));
876: assert(ROFF_PRELUDE_Dt & tree->state);
877: return(roff_text(tok, tree, argv, type));
878: }
879:
1.1 kristaps 880: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 881: assert( ! (ROFF_BODY & tree->state));
882:
1.6 kristaps 883: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 884: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 885: return(0);
1.6 kristaps 886: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 887: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 888: return(0);
1.1 kristaps 889: }
890:
1.4 kristaps 891: /* TODO: parse date. */
892:
1.1 kristaps 893: assert(NULL == tree->last);
894: tree->state |= ROFF_PRELUDE_Dt;
895:
896: return(1);
897: }
898:
899:
900: /* ARGSUSED */
901: static int
902: roff_Os(ROFFCALL_ARGS)
903: {
904:
905: if (ROFF_EXIT == type) {
1.18 kristaps 906: roffnode_free(tree);
907: return((*tree->cb.rofftail)(tree->arg));
1.4 kristaps 908: } else if (ROFF_BODY & tree->state) {
909: assert( ! (ROFF_PRELUDE & tree->state));
910: assert(ROFF_PRELUDE_Os & tree->state);
911: return(roff_text(tok, tree, argv, type));
912: }
1.1 kristaps 913:
914: assert(ROFF_PRELUDE & tree->state);
915: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
916: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 917: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 918: return(0);
919: }
920:
1.4 kristaps 921: /* TODO: extract OS. */
1.1 kristaps 922:
923: tree->state |= ROFF_PRELUDE_Os;
924: tree->state &= ~ROFF_PRELUDE;
925: tree->state |= ROFF_BODY;
926:
1.4 kristaps 927: assert(NULL == tree->last);
928:
1.18 kristaps 929: if (NULL == roffnode_new(tok, tree))
930: return(0);
931:
932: return((*tree->cb.roffhead)(tree->arg));
1.1 kristaps 933: }
934:
935:
936: /* ARGSUSED */
937: static int
1.2 kristaps 938: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 939: {
1.2 kristaps 940: int i, c, argcp[ROFF_MAXARG];
941: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 942:
1.4 kristaps 943: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 944: roff_err(tree, *argv, "`%s' disallowed in prelude",
945: toknames[tok]);
1.4 kristaps 946: return(0);
947: }
948:
1.2 kristaps 949: if (ROFF_EXIT == type) {
1.15 kristaps 950: roffnode_free(tree);
951: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 952: }
1.1 kristaps 953:
1.2 kristaps 954: i = 0;
1.12 kristaps 955: argv++;
1.5 kristaps 956:
1.12 kristaps 957: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
958: if (ROFF_ARGMAX == c)
1.5 kristaps 959: return(0);
1.12 kristaps 960:
1.2 kristaps 961: argcp[i] = c;
962: argvp[i] = v;
1.5 kristaps 963: i++;
1.1 kristaps 964: argv++;
965: }
966:
1.5 kristaps 967: argcp[i] = ROFF_ARGMAX;
968: argvp[i] = NULL;
969:
1.4 kristaps 970: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 971: return(0);
972:
1.18 kristaps 973: if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp))
974: return(0);
975:
976: if (NULL == *argv)
977: return(1);
978:
1.15 kristaps 979: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 980: return(0);
981:
982: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.21 kristaps 983: i = 0;
1.14 kristaps 984: while (*argv) {
1.21 kristaps 985: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.14 kristaps 986: return(0);
1.21 kristaps 987: i = 1;
1.14 kristaps 988: }
1.18 kristaps 989: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 990: }
991:
1.21 kristaps 992: i = 0;
1.1 kristaps 993: while (*argv) {
1.8 kristaps 994: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
995: if (NULL == tokens[c].cb) {
1.12 kristaps 996: roff_err(tree, *argv, "unsupported "
997: "macro `%s'",
998: toknames[c]);
1.8 kristaps 999: return(0);
1000: }
1.14 kristaps 1001: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 1002: return(0);
1.14 kristaps 1003: break;
1.8 kristaps 1004: }
1.12 kristaps 1005:
1.17 kristaps 1006: assert(tree->arg);
1.21 kristaps 1007: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.14 kristaps 1008: return(0);
1.21 kristaps 1009: i = 1;
1010: }
1011:
1012: /*
1013: * If we're the first parser (*argv == tree->cur) then purge out
1014: * any additional punctuation, should there be any remaining at
1015: * the end of line.
1016: */
1017:
1018: if (ROFF_PARSED & tokens[tok].flags && *argv) {
1019: i = 0;
1020: while (argv[i])
1021: i++;
1022:
1023: assert(i > 0);
1024: if ( ! roffispunct(argv[--i]))
1.22 ! kristaps 1025: return((*tree->cb.roffout)(tree->arg, tok));
1.21 kristaps 1026:
1027: while (i >= 0 && roffispunct(argv[i]))
1028: i--;
1029:
1030: assert(0 != i);
1031: i++;
1032:
1033: while (argv[i])
1034: if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++]))
1035: return(0);
1.14 kristaps 1036: }
1.12 kristaps 1037:
1.18 kristaps 1038: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1039: }
1040:
1041:
1042: /* ARGSUSED */
1043: static int
1044: roff_text(ROFFCALL_ARGS)
1045: {
1.21 kristaps 1046: int i, j, first, c, argcp[ROFF_MAXARG];
1.2 kristaps 1047: char *v, *argvp[ROFF_MAXARG];
1048:
1.4 kristaps 1049: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 1050: roff_err(tree, *argv, "`%s' disallowed in prelude",
1051: toknames[tok]);
1.4 kristaps 1052: return(0);
1053: }
1054:
1.21 kristaps 1055: /* FIXME: breaks if passed from roff_layout. */
1056: first = *argv == tree->cur;
1057:
1.2 kristaps 1058: i = 0;
1.12 kristaps 1059: argv++;
1.5 kristaps 1060:
1.12 kristaps 1061: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
1062: if (ROFF_ARGMAX == c)
1.2 kristaps 1063: return(0);
1.12 kristaps 1064:
1.2 kristaps 1065: argcp[i] = c;
1066: argvp[i] = v;
1.5 kristaps 1067: i++;
1.1 kristaps 1068: argv++;
1069: }
1070:
1.5 kristaps 1071: argcp[i] = ROFF_ARGMAX;
1072: argvp[i] = NULL;
1073:
1.15 kristaps 1074: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1075: return(0);
1.1 kristaps 1076:
1.2 kristaps 1077: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.21 kristaps 1078: i = 0;
1.14 kristaps 1079: while (*argv) {
1.21 kristaps 1080: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.14 kristaps 1081: return(0);
1.21 kristaps 1082: i = 1;
1.14 kristaps 1083: }
1.15 kristaps 1084: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1085: }
1.1 kristaps 1086:
1.21 kristaps 1087: i = 0;
1.2 kristaps 1088: while (*argv) {
1.20 kristaps 1089: if (ROFF_MAX == (c = rofffindcallable(*argv))) {
1.21 kristaps 1090: /*
1091: * If all that remains is roff punctuation, then
1092: * close out our scope and return.
1093: */
1094: if (roffispunct(*argv)) {
1095: for (j = 0; argv[j]; j++)
1096: if ( ! roffispunct(argv[j]))
1097: break;
1098: if (NULL == argv[j])
1099: break;
1100: i = 1;
1101: }
1102:
1103: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.8 kristaps 1104: return(0);
1.21 kristaps 1105:
1106: i = 1;
1.20 kristaps 1107: continue;
1.8 kristaps 1108: }
1.20 kristaps 1109:
1110: /*
1111: * A sub-command has been found. Execute it and
1112: * discontinue parsing for arguments.
1113: */
1114:
1115: if (NULL == tokens[c].cb) {
1116: roff_err(tree, *argv, "unsupported macro `%s'",
1117: toknames[c]);
1118: return(0);
1119: }
1120:
1121: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.14 kristaps 1122: return(0);
1.20 kristaps 1123:
1124: break;
1.14 kristaps 1125: }
1.12 kristaps 1126:
1.21 kristaps 1127: if ( ! (*tree->cb.roffout)(tree->arg, tok))
1128: return(0);
1129:
1130: /*
1131: * If we're the first parser (*argv == tree->cur) then purge out
1132: * any additional punctuation, should there be any remaining at
1133: * the end of line.
1134: */
1135:
1136: if (first && *argv) {
1137: i = 0;
1138: while (argv[i])
1139: i++;
1140:
1141: assert(i > 0);
1142: if ( ! roffispunct(argv[--i]))
1143: return(1);
1144:
1145: while (i >= 0 && roffispunct(argv[i]))
1146: i--;
1147:
1148: assert(0 != i);
1149: i++;
1150:
1151: while (argv[i])
1152: if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++]))
1153: return(0);
1154: }
1155:
1156: return(1);
1.6 kristaps 1157: }
1158:
1159:
1.9 kristaps 1160: /* ARGSUSED */
1.6 kristaps 1161: static int
1162: roff_comment(ROFFCALL_ARGS)
1163: {
1164:
1165: return(1);
1.1 kristaps 1166: }
1.9 kristaps 1167:
1168:
1169: /* ARGSUSED */
1170: static int
1171: roff_close(ROFFCALL_ARGS)
1172: {
1173:
1174: return(1);
1175: }
1.11 kristaps 1176:
1177:
1178: /* ARGSUSED */
1179: static int
1180: roff_special(ROFFCALL_ARGS)
1181: {
1182:
1.15 kristaps 1183: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1184: }
1.12 kristaps 1185:
1186:
1187: static void
1188: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1189: {
1190: va_list ap;
1191: char buf[128];
1192:
1193: va_start(ap, fmt);
1194: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1195: va_end(ap);
1196:
1.15 kristaps 1197: (*tree->cb.roffmsg)(tree->arg,
1198: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1199: }
1200:
1201:
1202: static void
1203: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1204: {
1205: va_list ap;
1206: char buf[128];
1207:
1208: va_start(ap, fmt);
1209: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1210: va_end(ap);
1211:
1.15 kristaps 1212: (*tree->cb.roffmsg)(tree->arg,
1213: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1214: }
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