Annotation of mandoc/roff.c, Revision 1.27
1.27 ! kristaps 1: /* $Id: roff.c,v 1.26 2008/12/01 09:25:18 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:
1.27 ! kristaps 31: /* TODO: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
1.6 kristaps 32:
1.27 ! kristaps 33: /* TODO: warn about "X section only" macros. */
1.7 kristaps 34:
1.27 ! kristaps 35: /* TODO: warn about empty lists. */
1.6 kristaps 36:
1.27 ! kristaps 37: /* TODO: (warn) some sections need specific elements. */
1.7 kristaps 38:
1.27 ! kristaps 39: /* TODO: (warn) NAME section has particular order. */
! 40:
! 41: /* TODO: unify empty-content tags a la <br />. */
! 42:
! 43: /* TODO: macros with a set number of arguments? */
1.11 kristaps 44:
45: #define ROFF_MAXARG 32
1.1 kristaps 46:
47: enum roffd {
48: ROFF_ENTER = 0,
49: ROFF_EXIT
50: };
51:
52: enum rofftype {
53: ROFF_COMMENT,
54: ROFF_TEXT,
1.11 kristaps 55: ROFF_LAYOUT,
56: ROFF_SPECIAL
1.1 kristaps 57: };
58:
59: #define ROFFCALL_ARGS \
1.2 kristaps 60: int tok, struct rofftree *tree, \
1.18 kristaps 61: char *argv[], enum roffd type
1.1 kristaps 62:
63: struct rofftree;
64:
65: struct rofftok {
1.5 kristaps 66: int (*cb)(ROFFCALL_ARGS); /* Callback. */
67: const int *args; /* Args (or NULL). */
1.6 kristaps 68: const int *parents;
69: const int *children;
70: int ctx;
1.5 kristaps 71: enum rofftype type; /* Type of macro. */
1.1 kristaps 72: int flags;
1.7 kristaps 73: #define ROFF_PARSED (1 << 0) /* "Parsed". */
74: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
1.21 kristaps 75: #define ROFF_SHALLOW (1 << 2) /* Nesting block. */
1.27 ! kristaps 76: #define ROFF_LSCOPE (1 << 3)
1.1 kristaps 77: };
78:
79: struct roffarg {
80: int flags;
1.5 kristaps 81: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 82: };
83:
84: struct roffnode {
1.5 kristaps 85: int tok; /* Token id. */
86: struct roffnode *parent; /* Parent (or NULL). */
1.1 kristaps 87: };
88:
89: struct rofftree {
1.5 kristaps 90: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 91: char *cur;
92:
1.5 kristaps 93: time_t date; /* `Dd' results. */
94: char os[64]; /* `Os' results. */
95: char title[64]; /* `Dt' results. */
96: char section[64]; /* `Dt' results. */
97: char volume[64]; /* `Dt' results. */
1.14 kristaps 98:
1.1 kristaps 99: int state;
1.5 kristaps 100: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
101: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
102: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
103: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
104: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 105:
1.15 kristaps 106: struct roffcb cb;
107: void *arg;
1.1 kristaps 108: };
109:
110: static int roff_Dd(ROFFCALL_ARGS);
111: static int roff_Dt(ROFFCALL_ARGS);
112: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 113:
1.2 kristaps 114: static int roff_layout(ROFFCALL_ARGS);
115: static int roff_text(ROFFCALL_ARGS);
1.27 ! kristaps 116: static int roff_noop(ROFFCALL_ARGS);
! 117: static int roff_depr(ROFFCALL_ARGS);
1.1 kristaps 118:
1.4 kristaps 119: static struct roffnode *roffnode_new(int, struct rofftree *);
1.15 kristaps 120: static void roffnode_free(struct rofftree *);
1.1 kristaps 121:
1.12 kristaps 122: static void roff_warn(const struct rofftree *,
123: const char *, char *, ...);
124: static void roff_err(const struct rofftree *,
125: const char *, char *, ...);
126:
1.7 kristaps 127: static int roffscan(int, const int *);
1.1 kristaps 128: static int rofffindtok(const char *);
129: static int rofffindarg(const char *);
1.2 kristaps 130: static int rofffindcallable(const char *);
1.10 kristaps 131: static int roffargs(const struct rofftree *,
132: int, char *, char **);
1.5 kristaps 133: static int roffargok(int, int);
1.12 kristaps 134: static int roffnextopt(const struct rofftree *,
1.18 kristaps 135: int, char ***, char **);
1.27 ! kristaps 136: static int roffparseopts(struct rofftree *, int,
! 137: char ***, int *, char **);
1.17 kristaps 138: static int roffparse(struct rofftree *, char *);
139: static int textparse(const struct rofftree *, char *);
1.1 kristaps 140:
1.6 kristaps 141:
1.7 kristaps 142: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
143: ROFF_ARGMAX };
144: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 145: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
146: ROFF_Compact, ROFF_ARGMAX };
147: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 148: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
149: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
150: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
151: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
152: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 153: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 154: static const int roffarg_St[] = {
155: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
156: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
157: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
158: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
159: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
160: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
161: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
162: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
163: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
164: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
165: ROFF_ARGMAX };
1.5 kristaps 166:
1.6 kristaps 167: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 168: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 169: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 170: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
171: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
172: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 173:
174: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 175: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
176: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 177: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 178: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 179:
1.5 kristaps 180: /* Table of all known tokens. */
1.14 kristaps 181: static const struct rofftok tokens[ROFF_MAX] = {
1.27 ! kristaps 182: { roff_noop, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
1.10 kristaps 183: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
184: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
1.21 kristaps 185: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Os */
186: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, 0 }, /* Sh */
187: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, 0 }, /* Ss */
1.27 ! kristaps 188: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Pp */ /* XXX 0 args */
! 189: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_LSCOPE }, /* D1 */
! 190: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_LSCOPE }, /* Dl */
1.12 kristaps 191: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.27 ! kristaps 192: { roff_noop, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 193: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.27 ! kristaps 194: { roff_noop, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.21 kristaps 195: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_PARSED | ROFF_SHALLOW }, /* It */
1.20 kristaps 196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */ /* FIXME */
197: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
1.21 kristaps 199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Cd */ /* XXX man.4 only */
1.7 kristaps 200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
1.20 kristaps 201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
1.7 kristaps 204: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
1.20 kristaps 205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.20 kristaps 207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.20 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.21 kristaps 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Nd */
1.20 kristaps 214: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.27 ! kristaps 215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Op */
! 216: { roff_depr, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */
1.20 kristaps 217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 218: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 219: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
1.20 kristaps 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.27 ! kristaps 236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Aq */
1.10 kristaps 237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 239: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.27 ! kristaps 241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Bq */
1.20 kristaps 242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.26 kristaps 244: { NULL, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.27 ! kristaps 247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Dq */
1.10 kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 249: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
1.20 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.20 kristaps 252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
253: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 254: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
1.26 kristaps 255: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.20 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.26 kristaps 259: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.27 ! kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Pq */
1.10 kristaps 262: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 263: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.27 ! kristaps 264: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
! 265: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Qq */
! 266: { roff_noop, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
1.9 kristaps 267: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.27 ! kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_LSCOPE }, /* Sq */
1.26 kristaps 271: { NULL, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 272: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.20 kristaps 273: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
274: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
275: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 276: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
277: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 278: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.27 ! kristaps 279: { roff_noop, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 280: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.27 ! kristaps 281: { roff_noop, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 282: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.27 ! kristaps 283: { roff_noop, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
! 284: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bt */
! 285: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Hf */
! 286: { roff_depr, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fr */
! 287: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ud */
1.12 kristaps 288: };
1.1 kristaps 289:
1.5 kristaps 290: /* Table of all known token arguments. */
1.14 kristaps 291: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 292: 0, 0, 0, 0,
293: 0, ROFF_VALUE, ROFF_VALUE, 0,
294: 0, 0, 0, 0,
295: 0, 0, 0, 0,
1.18 kristaps 296: 0, 0, ROFF_VALUE, 0,
1.12 kristaps 297: 0, 0, 0, 0,
298: 0, 0, 0, 0,
299: 0, 0, 0, 0,
300: 0, 0, 0, 0,
301: 0, 0, 0, 0,
302: 0, 0, 0, 0,
303: 0, 0, 0, 0,
304: 0, 0, 0, 0,
305: 0, 0, 0, 0,
306: 0, 0, 0, 0,
307: };
1.1 kristaps 308:
1.14 kristaps 309: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 310: "\\\"", "Dd", "Dt", "Os",
311: "Sh", "Ss", "Pp", "D1",
312: "Dl", "Bd", "Ed", "Bl",
313: "El", "It", "Ad", "An",
314: "Ar", "Cd", "Cm", "Dv",
315: "Er", "Ev", "Ex", "Fa",
316: "Fd", "Fl", "Fn", "Ft",
317: "Ic", "In", "Li", "Nd",
318: "Nm", "Op", "Ot", "Pa",
319: "Rv", "St", "Va", "Vt",
1.23 kristaps 320: /* LINTED */
1.8 kristaps 321: "Xr", "\%A", "\%B", "\%D",
1.23 kristaps 322: /* LINTED */
1.8 kristaps 323: "\%I", "\%J", "\%N", "\%O",
1.23 kristaps 324: /* LINTED */
1.8 kristaps 325: "\%P", "\%R", "\%T", "\%V",
326: "Ac", "Ao", "Aq", "At",
327: "Bc", "Bf", "Bo", "Bq",
328: "Bsx", "Bx", "Db", "Dc",
329: "Do", "Dq", "Ec", "Ef",
330: "Em", "Eo", "Fx", "Ms",
331: "No", "Ns", "Nx", "Ox",
332: "Pc", "Pf", "Po", "Pq",
333: "Qc", "Ql", "Qo", "Qq",
334: "Re", "Rs", "Sc", "So",
335: "Sq", "Sm", "Sx", "Sy",
336: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 337: "Fo", "Fc", "Oo", "Oc",
1.27 ! kristaps 338: "Bk", "Ek", "Bt", "Hf",
! 339: "Fr", "Ud",
1.5 kristaps 340: };
341:
1.14 kristaps 342: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 343: "split", "nosplit", "ragged",
344: "unfilled", "literal", "file",
345: "offset", "bullet", "dash",
346: "hyphen", "item", "enum",
347: "tag", "diag", "hang",
348: "ohang", "inset", "column",
349: "width", "compact", "std",
350: "p1003.1-88", "p1003.1-90", "p1003.1-96",
351: "p1003.1-2001", "p1003.1-2004", "p1003.1",
352: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
353: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
354: "p1003.2", "p1387.2", "isoC-90",
355: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
356: "isoC-99", "ansiC", "ansiC-89",
357: "ansiC-99", "ieee754", "iso8802-3",
358: "xpg3", "xpg4", "xpg4.2",
359: "xpg4.3", "xbd5", "xcu5",
360: "xsh5", "xns5", "xns5.2d2.0",
361: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 362: "svid4", "filled", "words",
1.5 kristaps 363: };
364:
365: const char *const *toknames = toknamesp;
366: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 367:
1.1 kristaps 368:
369: int
370: roff_free(struct rofftree *tree, int flush)
371: {
1.16 kristaps 372: int error, t;
1.15 kristaps 373: struct roffnode *n;
1.1 kristaps 374:
1.17 kristaps 375: error = 0;
376:
1.16 kristaps 377: if ( ! flush)
378: goto end;
1.1 kristaps 379:
1.16 kristaps 380: error = 1;
1.1 kristaps 381:
1.16 kristaps 382: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 383: roff_warn(tree, NULL, "prelude never finished");
1.16 kristaps 384: goto end;
385: }
386:
387: for (n = tree->last; n->parent; n = n->parent) {
388: if (0 != tokens[n->tok].ctx)
1.17 kristaps 389: continue;
1.16 kristaps 390: roff_warn(tree, NULL, "closing explicit scope `%s'",
391: toknames[n->tok]);
392: goto end;
393: }
394:
395: while (tree->last) {
396: t = tree->last->tok;
397: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
398: goto end;
1.1 kristaps 399: }
400:
1.16 kristaps 401: error = 0;
402:
403: end:
404:
1.15 kristaps 405: while (tree->last)
406: roffnode_free(tree);
407:
1.1 kristaps 408: free(tree);
1.17 kristaps 409:
1.1 kristaps 410: return(error ? 0 : 1);
411: }
412:
413:
414: struct rofftree *
1.15 kristaps 415: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 416: {
417: struct rofftree *tree;
418:
1.17 kristaps 419: assert(args);
420: assert(cb);
421:
1.12 kristaps 422: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
423: err(1, "calloc");
1.1 kristaps 424:
425: tree->state = ROFF_PRELUDE;
1.15 kristaps 426: tree->arg = args;
427:
428: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 429:
430: return(tree);
431: }
432:
433:
434: int
1.17 kristaps 435: roff_engine(struct rofftree *tree, char *buf)
1.1 kristaps 436: {
437:
1.17 kristaps 438: tree->cur = buf;
439: assert(buf);
1.12 kristaps 440:
1.17 kristaps 441: if (0 == *buf) {
1.12 kristaps 442: roff_warn(tree, buf, "blank line");
1.1 kristaps 443: return(0);
444: } else if ('.' != *buf)
1.17 kristaps 445: return(textparse(tree, buf));
1.1 kristaps 446:
1.17 kristaps 447: return(roffparse(tree, buf));
1.1 kristaps 448: }
449:
450:
451: static int
1.17 kristaps 452: textparse(const struct rofftree *tree, char *buf)
1.1 kristaps 453: {
1.17 kristaps 454:
1.21 kristaps 455: return((*tree->cb.roffdata)(tree->arg, 1, buf));
1.1 kristaps 456: }
457:
458:
459: static int
1.10 kristaps 460: roffargs(const struct rofftree *tree,
461: int tok, char *buf, char **argv)
1.1 kristaps 462: {
463: int i;
1.12 kristaps 464: char *p;
1.1 kristaps 465:
466: assert(tok >= 0 && tok < ROFF_MAX);
467: assert('.' == *buf);
468:
1.12 kristaps 469: p = buf;
470:
1.1 kristaps 471: /* LINTED */
472: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 473: if ('\"' == *buf) {
474: argv[i] = ++buf;
475: while (*buf && '\"' != *buf)
476: buf++;
477: if (0 == *buf) {
1.13 kristaps 478: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 479: "quote in argument "
480: "list for `%s'",
481: toknames[tok]);
1.10 kristaps 482: return(0);
483: }
484: } else {
485: argv[i] = buf++;
486: while (*buf && ! isspace(*buf))
487: buf++;
488: if (0 == *buf)
489: continue;
1.1 kristaps 490: }
491: *buf++ = 0;
492: while (*buf && isspace(*buf))
493: buf++;
494: }
495:
496: assert(i > 0);
1.10 kristaps 497: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 498: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 499: [tok]);
1.10 kristaps 500: return(0);
501: }
502:
503: argv[i] = NULL;
504: return(1);
1.1 kristaps 505: }
506:
507:
1.6 kristaps 508: static int
509: roffscan(int tok, const int *tokv)
510: {
1.7 kristaps 511:
1.6 kristaps 512: if (NULL == tokv)
513: return(1);
514:
1.7 kristaps 515: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 516: if (tok == *tokv)
517: return(1);
518:
519: return(0);
520: }
521:
522:
1.1 kristaps 523: static int
1.17 kristaps 524: roffparse(struct rofftree *tree, char *buf)
1.1 kristaps 525: {
526: int tok, t;
1.6 kristaps 527: struct roffnode *n;
1.1 kristaps 528: char *argv[ROFF_MAXARG];
1.18 kristaps 529: char **argvp;
1.1 kristaps 530:
1.25 kristaps 531: if (0 != *buf && 0 != *(buf + 1) && 0 != *(buf + 2))
532: if (0 == strncmp(buf, ".\\\"", 3))
533: return(1);
534:
1.6 kristaps 535: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 536: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 537: return(0);
538: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 539: roff_err(tree, buf + 1, "unsupported macro `%s'",
540: toknames[tok]);
1.1 kristaps 541: return(0);
1.25 kristaps 542: }
543:
544: assert(ROFF___ != tok);
1.10 kristaps 545: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 546: return(0);
1.12 kristaps 547:
1.18 kristaps 548: argvp = (char **)argv;
1.6 kristaps 549:
550: /*
1.12 kristaps 551: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 552: */
1.1 kristaps 553:
1.6 kristaps 554: if (ROFF_PRELUDE & tree->state) {
555: assert(NULL == tree->last);
556: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
557: } else
558: assert(tree->last);
559:
560: assert(ROFF_BODY & tree->state);
561:
562: /*
563: * First check that our possible parents and parent's possible
564: * children are satisfied.
565: */
566:
567: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 568: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
569: toknames[tok],
570: toknames[tree->last->tok]);
1.6 kristaps 571: return(0);
572: }
573:
574: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.18 kristaps 575: roff_err(tree, *argvp, "`%s' is invalid child of `%s'",
576: toknames[tok],
577: toknames[tree->last->tok]);
1.1 kristaps 578: return(0);
579: }
580:
581: /*
1.6 kristaps 582: * Branch if we're not a layout token.
1.1 kristaps 583: */
584:
1.6 kristaps 585: if (ROFF_LAYOUT != tokens[tok].type)
586: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
587: if (0 == tokens[tok].ctx)
588: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 589:
1.12 kristaps 590: /*
591: * First consider implicit-end tags, like as follows:
592: * .Sh SECTION 1
593: * .Sh SECTION 2
594: * In this, we want to close the scope of the NAME section. If
595: * there's an intermediary implicit-end tag, such as
596: * .Sh SECTION 1
597: * .Ss Subsection 1
598: * .Sh SECTION 2
599: * then it must be closed as well.
600: */
601:
1.6 kristaps 602: if (tok == tokens[tok].ctx) {
1.12 kristaps 603: /*
604: * First search up to the point where we must close.
605: * If one doesn't exist, then we can open a new scope.
606: */
607:
1.6 kristaps 608: for (n = tree->last; n; n = n->parent) {
609: assert(0 == tokens[n->tok].ctx ||
610: n->tok == tokens[n->tok].ctx);
611: if (n->tok == tok)
612: break;
1.10 kristaps 613: if (ROFF_SHALLOW & tokens[tok].flags) {
614: n = NULL;
615: break;
616: }
1.6 kristaps 617: }
1.10 kristaps 618:
619: /*
620: * Create a new scope, as no previous one exists to
621: * close out.
622: */
1.12 kristaps 623:
624: if (NULL == n)
1.6 kristaps 625: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 626:
627: /*
1.12 kristaps 628: * Close out all intermediary scoped blocks, then hang
629: * the current scope from our predecessor's parent.
1.10 kristaps 630: */
631:
1.1 kristaps 632: do {
633: t = tree->last->tok;
1.6 kristaps 634: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 635: return(0);
636: } while (t != tok);
1.6 kristaps 637:
638: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 639: }
640:
1.12 kristaps 641: /*
642: * Now consider explicit-end tags, where we want to close back
643: * to a specific tag. Example:
644: * .Bl
645: * .It Item.
646: * .El
647: * In this, the `El' tag closes out the scope of `Bl'.
648: */
649:
1.9 kristaps 650: assert(tree->last);
1.6 kristaps 651: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
652:
1.14 kristaps 653: /* LINTED */
1.6 kristaps 654: do {
655: t = tree->last->tok;
656: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
657: return(0);
658: } while (t != tokens[tok].ctx);
1.1 kristaps 659:
1.9 kristaps 660: assert(tree->last);
661: return(1);
1.1 kristaps 662: }
663:
664:
665: static int
666: rofffindarg(const char *name)
667: {
668: size_t i;
669:
670: /* FIXME: use a table, this is slow but ok for now. */
671:
672: /* LINTED */
673: for (i = 0; i < ROFF_ARGMAX; i++)
674: /* LINTED */
1.4 kristaps 675: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 676: return((int)i);
677:
678: return(ROFF_ARGMAX);
679: }
680:
681:
682: static int
1.6 kristaps 683: rofffindtok(const char *buf)
1.1 kristaps 684: {
1.6 kristaps 685: char token[4];
1.23 kristaps 686: int i;
1.1 kristaps 687:
1.6 kristaps 688: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
689: token[i] = *buf;
690:
1.9 kristaps 691: if (i == 3)
1.6 kristaps 692: return(ROFF_MAX);
693:
694: token[i] = 0;
695:
1.1 kristaps 696: /* FIXME: use a table, this is slow but ok for now. */
697:
698: /* LINTED */
699: for (i = 0; i < ROFF_MAX; i++)
700: /* LINTED */
1.12 kristaps 701: if (0 == strcmp(toknames[i], token))
1.1 kristaps 702: return((int)i);
1.7 kristaps 703:
1.1 kristaps 704: return(ROFF_MAX);
705: }
706:
707:
1.20 kristaps 708: static int
709: roffispunct(const char *p)
710: {
711:
712: if (0 == *p)
713: return(0);
714: if (0 != *(p + 1))
715: return(0);
716:
717: switch (*p) {
718: case('{'):
719: /* FALLTHROUGH */
720: case('.'):
721: /* FALLTHROUGH */
722: case(','):
723: /* FALLTHROUGH */
724: case(';'):
725: /* FALLTHROUGH */
726: case(':'):
727: /* FALLTHROUGH */
728: case('?'):
729: /* FALLTHROUGH */
730: case('!'):
731: /* FALLTHROUGH */
732: case('('):
733: /* FALLTHROUGH */
734: case(')'):
735: /* FALLTHROUGH */
736: case('['):
737: /* FALLTHROUGH */
738: case(']'):
739: /* FALLTHROUGH */
740: case('}'):
741: return(1);
742: default:
743: break;
744: }
745:
746: return(0);
747: }
748:
749:
1.2 kristaps 750: static int
751: rofffindcallable(const char *name)
752: {
753: int c;
754:
755: if (ROFF_MAX == (c = rofffindtok(name)))
756: return(ROFF_MAX);
1.8 kristaps 757: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 758: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
759: }
760:
761:
1.1 kristaps 762: static struct roffnode *
1.4 kristaps 763: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 764: {
765: struct roffnode *p;
766:
1.12 kristaps 767: if (NULL == (p = malloc(sizeof(struct roffnode))))
768: err(1, "malloc");
1.1 kristaps 769:
770: p->tok = tokid;
771: p->parent = tree->last;
772: tree->last = p;
1.9 kristaps 773:
1.1 kristaps 774: return(p);
775: }
776:
777:
1.5 kristaps 778: static int
779: roffargok(int tokid, int argid)
780: {
781: const int *c;
782:
783: if (NULL == (c = tokens[tokid].args))
784: return(0);
785:
786: for ( ; ROFF_ARGMAX != *c; c++)
787: if (argid == *c)
788: return(1);
789:
790: return(0);
791: }
792:
793:
1.1 kristaps 794: static void
1.15 kristaps 795: roffnode_free(struct rofftree *tree)
1.1 kristaps 796: {
797: struct roffnode *p;
798:
799: assert(tree->last);
800:
801: p = tree->last;
802: tree->last = tree->last->parent;
803: free(p);
804: }
805:
806:
1.6 kristaps 807: static int
1.12 kristaps 808: roffnextopt(const struct rofftree *tree, int tok,
1.18 kristaps 809: char ***in, char **val)
1.6 kristaps 810: {
1.18 kristaps 811: char *arg, **argv;
1.6 kristaps 812: int v;
813:
814: *val = NULL;
815: argv = *in;
816: assert(argv);
817:
818: if (NULL == (arg = *argv))
819: return(-1);
820: if ('-' != *arg)
821: return(-1);
822:
1.12 kristaps 823: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
824: roff_warn(tree, arg, "argument-like parameter `%s' to "
825: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 826: return(-1);
1.12 kristaps 827: }
828:
829: if ( ! roffargok(tok, v)) {
830: roff_warn(tree, arg, "invalid argument parameter `%s' to "
831: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 832: return(-1);
1.12 kristaps 833: }
834:
835: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 836: return(v);
837:
838: *in = ++argv;
839:
1.12 kristaps 840: if (NULL == *argv) {
841: roff_err(tree, arg, "empty value of `%s' for `%s'",
842: tokargnames[v], toknames[tok]);
843: return(ROFF_ARGMAX);
844: }
1.6 kristaps 845:
1.12 kristaps 846: return(v);
1.6 kristaps 847: }
848:
849:
1.27 ! kristaps 850: static int
! 851: roffparseopts(struct rofftree *tree, int tok,
! 852: char ***args, int *argc, char **argv)
! 853: {
! 854: int i, c;
! 855: char *v;
! 856:
! 857: i = 0;
! 858:
! 859: while (-1 != (c = roffnextopt(tree, tok, args, &v))) {
! 860: if (ROFF_ARGMAX == c)
! 861: return(0);
! 862:
! 863: argc[i] = c;
! 864: argv[i] = v;
! 865: i++;
! 866: *args = *args + 1;
! 867: }
! 868:
! 869: argc[i] = ROFF_ARGMAX;
! 870: argv[i] = NULL;
! 871: return(1);
! 872: }
! 873:
! 874:
1.1 kristaps 875: /* ARGSUSED */
876: static int
877: roff_Dd(ROFFCALL_ARGS)
878: {
879:
1.4 kristaps 880: if (ROFF_BODY & tree->state) {
881: assert( ! (ROFF_PRELUDE & tree->state));
882: assert(ROFF_PRELUDE_Dd & tree->state);
883: return(roff_text(tok, tree, argv, type));
884: }
885:
1.1 kristaps 886: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 887: assert( ! (ROFF_BODY & tree->state));
888:
1.6 kristaps 889: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 890: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 891: return(0);
892: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 893: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 894: return(0);
895: }
896:
1.4 kristaps 897: /* TODO: parse date. */
898:
1.1 kristaps 899: assert(NULL == tree->last);
900: tree->state |= ROFF_PRELUDE_Dd;
901:
902: return(1);
903: }
904:
905:
906: /* ARGSUSED */
907: static int
908: roff_Dt(ROFFCALL_ARGS)
909: {
910:
1.4 kristaps 911: if (ROFF_BODY & tree->state) {
912: assert( ! (ROFF_PRELUDE & tree->state));
913: assert(ROFF_PRELUDE_Dt & tree->state);
914: return(roff_text(tok, tree, argv, type));
915: }
916:
1.1 kristaps 917: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 918: assert( ! (ROFF_BODY & tree->state));
919:
1.6 kristaps 920: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 921: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 922: return(0);
1.6 kristaps 923: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 924: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 925: return(0);
1.1 kristaps 926: }
927:
1.4 kristaps 928: /* TODO: parse date. */
929:
1.1 kristaps 930: assert(NULL == tree->last);
931: tree->state |= ROFF_PRELUDE_Dt;
932:
933: return(1);
934: }
935:
936:
937: /* ARGSUSED */
938: static int
939: roff_Os(ROFFCALL_ARGS)
940: {
941:
942: if (ROFF_EXIT == type) {
1.18 kristaps 943: roffnode_free(tree);
944: return((*tree->cb.rofftail)(tree->arg));
1.4 kristaps 945: } else if (ROFF_BODY & tree->state) {
946: assert( ! (ROFF_PRELUDE & tree->state));
947: assert(ROFF_PRELUDE_Os & tree->state);
948: return(roff_text(tok, tree, argv, type));
949: }
1.1 kristaps 950:
951: assert(ROFF_PRELUDE & tree->state);
952: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
953: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 954: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 955: return(0);
956: }
957:
1.4 kristaps 958: /* TODO: extract OS. */
1.1 kristaps 959:
960: tree->state |= ROFF_PRELUDE_Os;
961: tree->state &= ~ROFF_PRELUDE;
962: tree->state |= ROFF_BODY;
963:
1.4 kristaps 964: assert(NULL == tree->last);
965:
1.18 kristaps 966: if (NULL == roffnode_new(tok, tree))
967: return(0);
968:
969: return((*tree->cb.roffhead)(tree->arg));
1.1 kristaps 970: }
971:
972:
973: /* ARGSUSED */
974: static int
1.2 kristaps 975: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 976: {
1.2 kristaps 977: int i, c, argcp[ROFF_MAXARG];
1.27 ! kristaps 978: char *argvp[ROFF_MAXARG];
1.1 kristaps 979:
1.4 kristaps 980: if (ROFF_PRELUDE & tree->state) {
1.27 ! kristaps 981: roff_err(tree, *argv, "bad `%s' in prelude",
1.12 kristaps 982: toknames[tok]);
1.4 kristaps 983: return(0);
1.27 ! kristaps 984: } else if (ROFF_EXIT == type) {
1.15 kristaps 985: roffnode_free(tree);
986: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 987: }
1.1 kristaps 988:
1.27 ! kristaps 989: assert( ! (ROFF_CALLABLE & tokens[tok].flags));
1.5 kristaps 990:
1.27 ! kristaps 991: ++argv;
1.5 kristaps 992:
1.27 ! kristaps 993: if ( ! roffparseopts(tree, tok, &argv, argcp, argvp))
! 994: return(0);
1.4 kristaps 995: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 996: return(0);
997:
1.27 ! kristaps 998: /*
! 999: * Layouts have two parts: the layout body and header. The
! 1000: * layout header is the trailing text of the line macro, while
! 1001: * the layout body is everything following until termination.
! 1002: */
! 1003:
1.18 kristaps 1004: if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp))
1005: return(0);
1006: if (NULL == *argv)
1007: return(1);
1.24 kristaps 1008: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1009: return(0);
1010:
1.27 ! kristaps 1011: /*
! 1012: * If there are no parsable parts, then write remaining tokens
! 1013: * into the layout header and exit.
! 1014: */
! 1015:
1.2 kristaps 1016: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.21 kristaps 1017: i = 0;
1.14 kristaps 1018: while (*argv) {
1.21 kristaps 1019: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.14 kristaps 1020: return(0);
1.21 kristaps 1021: i = 1;
1.14 kristaps 1022: }
1.18 kristaps 1023: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1024: }
1025:
1.27 ! kristaps 1026: /*
! 1027: * Parsable elements may be in the header (or be the header, for
! 1028: * that matter). Follow the regular parsing rules for these.
! 1029: */
! 1030:
1.21 kristaps 1031: i = 0;
1.1 kristaps 1032: while (*argv) {
1.26 kristaps 1033: if (ROFF_MAX == (c = rofffindcallable(*argv))) {
1034: assert(tree->arg);
1035: if ( ! (*tree->cb.roffdata)
1036: (tree->arg, i, *argv++))
1.8 kristaps 1037: return(0);
1.26 kristaps 1038: i = 1;
1039: continue;
1040: }
1041:
1042: if (NULL == tokens[c].cb) {
1043: roff_err(tree, *argv, "unsupported macro `%s'",
1044: toknames[c]);
1045: return(0);
1.8 kristaps 1046: }
1.12 kristaps 1047:
1.26 kristaps 1048: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.14 kristaps 1049: return(0);
1.26 kristaps 1050:
1051: break;
1.21 kristaps 1052: }
1053:
1054: /*
1.27 ! kristaps 1055: * If there's trailing punctuation in the header, then write it
! 1056: * out now. Here we mimic the behaviour of a line-dominant text
! 1057: * macro.
1.21 kristaps 1058: */
1059:
1.27 ! kristaps 1060: if (NULL == *argv)
1.26 kristaps 1061: return((*tree->cb.roffout)(tree->arg, tok));
1.21 kristaps 1062:
1.27 ! kristaps 1063: /*
! 1064: * Expensive. Scan to the end of line then work backwards until
! 1065: * a token isn't punctuation.
! 1066: */
! 1067:
1.26 kristaps 1068: i = 0;
1069: while (argv[i])
1070: i++;
1.21 kristaps 1071:
1.26 kristaps 1072: assert(i > 0);
1073: if ( ! roffispunct(argv[--i]))
1074: return((*tree->cb.roffout)(tree->arg, tok));
1075:
1076: while (i >= 0 && roffispunct(argv[i]))
1077: i--;
1.21 kristaps 1078:
1.26 kristaps 1079: assert(0 != i);
1080: i++;
1.21 kristaps 1081:
1.26 kristaps 1082: /* LINTED */
1083: while (argv[i])
1084: if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++]))
1085: return(0);
1.12 kristaps 1086:
1.18 kristaps 1087: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1088: }
1089:
1090:
1091: /* ARGSUSED */
1092: static int
1093: roff_text(ROFFCALL_ARGS)
1094: {
1.21 kristaps 1095: int i, j, first, c, argcp[ROFF_MAXARG];
1.27 ! kristaps 1096: char *argvp[ROFF_MAXARG];
1.2 kristaps 1097:
1.4 kristaps 1098: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 1099: roff_err(tree, *argv, "`%s' disallowed in prelude",
1100: toknames[tok]);
1.4 kristaps 1101: return(0);
1102: }
1103:
1.27 ! kristaps 1104: first = (*argv == tree->cur);
1.12 kristaps 1105: argv++;
1.5 kristaps 1106:
1.27 ! kristaps 1107: if ( ! roffparseopts(tree, tok, &argv, argcp, argvp))
! 1108: return(0);
1.24 kristaps 1109: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1110: return(0);
1.27 ! kristaps 1111: if (NULL == *argv)
! 1112: return((*tree->cb.roffout)(tree->arg, tok));
1.1 kristaps 1113:
1.2 kristaps 1114: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.21 kristaps 1115: i = 0;
1.14 kristaps 1116: while (*argv) {
1.21 kristaps 1117: if ( ! (*tree->cb.roffdata)(tree->arg, i, *argv++))
1.14 kristaps 1118: return(0);
1.21 kristaps 1119: i = 1;
1.14 kristaps 1120: }
1.15 kristaps 1121: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1122: }
1.1 kristaps 1123:
1.27 ! kristaps 1124: /*
! 1125: * Deal with punctuation. Ugly. Work ahead until we encounter
! 1126: * terminating punctuation. If we encounter it and all
! 1127: * subsequent tokens are punctuation, then stop processing (the
! 1128: * line-dominant macro will print these tokens after closure).
! 1129: */
! 1130:
1.21 kristaps 1131: i = 0;
1.2 kristaps 1132: while (*argv) {
1.20 kristaps 1133: if (ROFF_MAX == (c = rofffindcallable(*argv))) {
1.27 ! kristaps 1134: if ( ! roffispunct(*argv)) {
! 1135: if ( ! (*tree->cb.roffdata)
! 1136: (tree->arg, i, *argv++))
! 1137: return(0);
1.21 kristaps 1138: i = 1;
1.27 ! kristaps 1139: continue;
1.21 kristaps 1140: }
1.27 ! kristaps 1141:
! 1142: /* See if only punctuation remains. */
1.21 kristaps 1143:
1144: i = 1;
1.27 ! kristaps 1145: for (j = 0; argv[j]; j++)
! 1146: if ( ! roffispunct(argv[j]))
! 1147: break;
! 1148:
! 1149: if (argv[j]) {
! 1150: if ( ! (*tree->cb.roffdata)
! 1151: (tree->arg, 0, *argv++))
! 1152: return(0);
! 1153: continue;
! 1154: }
! 1155:
! 1156: /* Only punctuation remains. */
! 1157:
! 1158: if ( ! (*tree->cb.roffout)(tree->arg, tok))
! 1159: return(0);
! 1160: break;
1.8 kristaps 1161: }
1.20 kristaps 1162:
1163: /*
1164: * A sub-command has been found. Execute it and
1.27 ! kristaps 1165: * discontinue parsing for arguments. If we're
! 1166: * line-scoped, then close out after it returns; if we
! 1167: * aren't, then close out before.
1.20 kristaps 1168: */
1169:
1170: if (NULL == tokens[c].cb) {
1171: roff_err(tree, *argv, "unsupported macro `%s'",
1172: toknames[c]);
1173: return(0);
1174: }
1175:
1.27 ! kristaps 1176: if ( ! (ROFF_LSCOPE & tokens[tok].flags))
! 1177: if ( ! (*tree->cb.roffout)(tree->arg, tok))
! 1178: return(0);
! 1179:
1.20 kristaps 1180: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.14 kristaps 1181: return(0);
1.20 kristaps 1182:
1.27 ! kristaps 1183: if (ROFF_LSCOPE & tokens[tok].flags)
! 1184: if ( ! (*tree->cb.roffout)(tree->arg, tok))
! 1185: return(0);
! 1186:
1.20 kristaps 1187: break;
1.14 kristaps 1188: }
1.12 kristaps 1189:
1.27 ! kristaps 1190: if (NULL == *argv)
! 1191: return((*tree->cb.roffout)(tree->arg, tok));
! 1192: if ( ! first)
! 1193: return(1);
1.21 kristaps 1194:
1.27 ! kristaps 1195: /*
! 1196: * We're the line-dominant macro. Check if there's remaining
! 1197: * punctuation. If there is, then flush it out before exiting.
1.21 kristaps 1198: */
1199:
1.26 kristaps 1200: i = 0;
1201: while (argv[i])
1202: i++;
1.21 kristaps 1203:
1.26 kristaps 1204: assert(i > 0);
1205: if ( ! roffispunct(argv[--i]))
1206: return(1);
1.21 kristaps 1207:
1.26 kristaps 1208: while (i >= 0 && roffispunct(argv[i]))
1209: i--;
1.21 kristaps 1210:
1.26 kristaps 1211: assert(0 != i);
1212: i++;
1.21 kristaps 1213:
1.26 kristaps 1214: /* LINTED */
1215: while (argv[i])
1216: if ( ! (*tree->cb.roffdata)(tree->arg, 0, argv[i++]))
1217: return(0);
1.21 kristaps 1218:
1219: return(1);
1.6 kristaps 1220: }
1221:
1222:
1.9 kristaps 1223: /* ARGSUSED */
1.6 kristaps 1224: static int
1.27 ! kristaps 1225: roff_noop(ROFFCALL_ARGS)
1.6 kristaps 1226: {
1227:
1228: return(1);
1.1 kristaps 1229: }
1.9 kristaps 1230:
1231:
1232: /* ARGSUSED */
1233: static int
1.27 ! kristaps 1234: roff_depr(ROFFCALL_ARGS)
1.9 kristaps 1235: {
1236:
1.27 ! kristaps 1237: roff_err(tree, *argv, "`%s' is deprecated", toknames[tok]);
! 1238: return(0);
1.11 kristaps 1239: }
1.12 kristaps 1240:
1241:
1242: static void
1243: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1244: {
1245: va_list ap;
1246: char buf[128];
1247:
1248: va_start(ap, fmt);
1249: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1250: va_end(ap);
1251:
1.15 kristaps 1252: (*tree->cb.roffmsg)(tree->arg,
1253: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1254: }
1255:
1256:
1257: static void
1258: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1259: {
1260: va_list ap;
1261: char buf[128];
1262:
1263: va_start(ap, fmt);
1264: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1265: va_end(ap);
1266:
1.15 kristaps 1267: (*tree->cb.roffmsg)(tree->arg,
1268: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1269: }
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