Annotation of mandoc/roff.c, Revision 1.19
1.19 ! kristaps 1: /* $Id: roff.c,v 1.18 2008/11/29 16:11:42 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:
1.7 kristaps 37: /* FIXME: ; : } ) (etc.) after text macros? */
38:
1.11 kristaps 39: /* FIXME: NAME section needs specific elements. */
40:
1.18 kristaps 41: /* FIXME: don't print Os, just do roffbegin. */
42:
1.11 kristaps 43: #define ROFF_MAXARG 32
1.1 kristaps 44:
45: enum roffd {
46: ROFF_ENTER = 0,
47: ROFF_EXIT
48: };
49:
50: enum rofftype {
51: ROFF_COMMENT,
52: ROFF_TEXT,
1.11 kristaps 53: ROFF_LAYOUT,
54: ROFF_SPECIAL
1.1 kristaps 55: };
56:
57: #define ROFFCALL_ARGS \
1.2 kristaps 58: int tok, struct rofftree *tree, \
1.18 kristaps 59: char *argv[], enum roffd type
1.1 kristaps 60:
61: struct rofftree;
62:
63: struct rofftok {
1.5 kristaps 64: int (*cb)(ROFFCALL_ARGS); /* Callback. */
65: const int *args; /* Args (or NULL). */
1.6 kristaps 66: const int *parents;
67: const int *children;
68: int ctx;
1.5 kristaps 69: enum rofftype type; /* Type of macro. */
1.1 kristaps 70: int flags;
1.7 kristaps 71: #define ROFF_PARSED (1 << 0) /* "Parsed". */
72: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
73: #define ROFF_QUOTES (1 << 2) /* Quoted args. */
1.10 kristaps 74: #define ROFF_SHALLOW (1 << 3) /* Nesting block. */
1.19 ! kristaps 75: #define ROFF_PUNCT (1 << 4)
1.1 kristaps 76: };
77:
78: struct roffarg {
79: int flags;
1.5 kristaps 80: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 81: };
82:
83: struct roffnode {
1.5 kristaps 84: int tok; /* Token id. */
85: struct roffnode *parent; /* Parent (or NULL). */
1.1 kristaps 86: };
87:
88: struct rofftree {
1.5 kristaps 89: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 90: char *cur;
91:
1.5 kristaps 92: time_t date; /* `Dd' results. */
93: char os[64]; /* `Os' results. */
94: char title[64]; /* `Dt' results. */
95: char section[64]; /* `Dt' results. */
96: char volume[64]; /* `Dt' results. */
1.14 kristaps 97:
1.1 kristaps 98: int state;
1.5 kristaps 99: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
100: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
101: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
102: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
103: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 104:
1.15 kristaps 105: struct roffcb cb;
106: void *arg;
1.1 kristaps 107: };
108:
109: static int roff_Dd(ROFFCALL_ARGS);
110: static int roff_Dt(ROFFCALL_ARGS);
111: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 112:
1.2 kristaps 113: static int roff_layout(ROFFCALL_ARGS);
114: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 115: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 116: static int roff_close(ROFFCALL_ARGS);
1.11 kristaps 117: static int roff_special(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 **);
1.17 kristaps 136: static int roffparse(struct rofftree *, char *);
137: static int textparse(const struct rofftree *, char *);
1.1 kristaps 138:
1.6 kristaps 139:
1.7 kristaps 140: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
141: ROFF_ARGMAX };
142: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 143: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
144: ROFF_Compact, ROFF_ARGMAX };
145: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 146: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
147: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
148: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
149: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
150: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 151: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 152: static const int roffarg_St[] = {
153: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
154: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
155: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
156: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
157: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
158: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
159: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
160: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
161: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
162: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
163: ROFF_ARGMAX };
1.5 kristaps 164:
1.6 kristaps 165: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 166: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 167: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 168: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
169: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
170: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 171:
172: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 173: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
174: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 175: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 176: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 177:
1.5 kristaps 178: /* Table of all known tokens. */
1.14 kristaps 179: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 180: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
181: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
182: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
183: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 184: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
185: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
186: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 187: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
188: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 189: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 190: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 191: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 192: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 193: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.19 ! kristaps 194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Ad */
! 195: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* An */
! 196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Ar */
1.7 kristaps 197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
1.19 ! kristaps 199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Dv */ /* XXX needs arg */
! 200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Er */ /* XXX needs arg */
! 201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Ev */ /* XXX needs arg */
1.7 kristaps 202: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
1.19 ! kristaps 203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Fa */ /* XXX needs arg */
1.10 kristaps 204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.19 ! kristaps 205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Fl */
! 206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Fn */ /* XXX needs arg */ /* FIXME */
! 207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Ft */
! 208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Ic */ /* XXX needs arg */
1.10 kristaps 209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.19 ! kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Li */
1.10 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.19 ! kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Nm */ /* FIXME */
! 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Op */
1.8 kristaps 214: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.19 ! kristaps 215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Pa */
1.10 kristaps 216: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 217: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
1.19 ! kristaps 218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Va */
! 219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Vt */ /* XXX needs arg */
! 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Xr */ /* XXX needs arg */
1.9 kristaps 221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 237: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.18 kristaps 239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.19 ! kristaps 240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Bsx */
! 241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Bx */
1.11 kristaps 242: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 247: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
1.19 ! kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Em */ /* XXX needs arg */
1.10 kristaps 249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.19 ! kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Fx */
! 251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Ms */
1.6 kristaps 252: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
253: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.19 ! kristaps 254: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Nx */
! 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Ox */
1.10 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 262: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 263: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 264: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
265: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 266: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 269: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.19 ! kristaps 271: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Sy */
! 272: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE | ROFF_PUNCT }, /* Tn */
! 273: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_PUNCT }, /* Ux */
1.6 kristaps 274: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
275: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 276: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 277: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 278: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 279: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 280: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 281: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 282: };
1.1 kristaps 283:
1.5 kristaps 284: /* Table of all known token arguments. */
1.14 kristaps 285: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 286: 0, 0, 0, 0,
287: 0, ROFF_VALUE, ROFF_VALUE, 0,
288: 0, 0, 0, 0,
289: 0, 0, 0, 0,
1.18 kristaps 290: 0, 0, ROFF_VALUE, 0,
1.12 kristaps 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: 0, 0, 0, 0,
298: 0, 0, 0, 0,
299: 0, 0, 0, 0,
300: 0, 0, 0, 0,
301: };
1.1 kristaps 302:
1.14 kristaps 303: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 304: "\\\"", "Dd", "Dt", "Os",
305: "Sh", "Ss", "Pp", "D1",
306: "Dl", "Bd", "Ed", "Bl",
307: "El", "It", "Ad", "An",
308: "Ar", "Cd", "Cm", "Dv",
309: "Er", "Ev", "Ex", "Fa",
310: "Fd", "Fl", "Fn", "Ft",
311: "Ic", "In", "Li", "Nd",
312: "Nm", "Op", "Ot", "Pa",
313: "Rv", "St", "Va", "Vt",
314: "Xr", "\%A", "\%B", "\%D",
315: "\%I", "\%J", "\%N", "\%O",
316: "\%P", "\%R", "\%T", "\%V",
317: "Ac", "Ao", "Aq", "At",
318: "Bc", "Bf", "Bo", "Bq",
319: "Bsx", "Bx", "Db", "Dc",
320: "Do", "Dq", "Ec", "Ef",
321: "Em", "Eo", "Fx", "Ms",
322: "No", "Ns", "Nx", "Ox",
323: "Pc", "Pf", "Po", "Pq",
324: "Qc", "Ql", "Qo", "Qq",
325: "Re", "Rs", "Sc", "So",
326: "Sq", "Sm", "Sx", "Sy",
327: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 328: "Fo", "Fc", "Oo", "Oc",
329: "Bk", "Ek",
1.5 kristaps 330: };
331:
1.14 kristaps 332: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 333: "split", "nosplit", "ragged",
334: "unfilled", "literal", "file",
335: "offset", "bullet", "dash",
336: "hyphen", "item", "enum",
337: "tag", "diag", "hang",
338: "ohang", "inset", "column",
339: "width", "compact", "std",
340: "p1003.1-88", "p1003.1-90", "p1003.1-96",
341: "p1003.1-2001", "p1003.1-2004", "p1003.1",
342: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
343: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
344: "p1003.2", "p1387.2", "isoC-90",
345: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
346: "isoC-99", "ansiC", "ansiC-89",
347: "ansiC-99", "ieee754", "iso8802-3",
348: "xpg3", "xpg4", "xpg4.2",
349: "xpg4.3", "xbd5", "xcu5",
350: "xsh5", "xns5", "xns5.2d2.0",
351: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 352: "svid4", "filled", "words",
1.5 kristaps 353: };
354:
355: const char *const *toknames = toknamesp;
356: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 357:
1.1 kristaps 358:
359: int
360: roff_free(struct rofftree *tree, int flush)
361: {
1.16 kristaps 362: int error, t;
1.15 kristaps 363: struct roffnode *n;
1.1 kristaps 364:
1.17 kristaps 365: error = 0;
366:
1.16 kristaps 367: if ( ! flush)
368: goto end;
1.1 kristaps 369:
1.16 kristaps 370: error = 1;
1.1 kristaps 371:
1.16 kristaps 372: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 373: roff_warn(tree, NULL, "prelude never finished");
1.16 kristaps 374: goto end;
375: }
376:
377: for (n = tree->last; n->parent; n = n->parent) {
378: if (0 != tokens[n->tok].ctx)
1.17 kristaps 379: continue;
1.16 kristaps 380: roff_warn(tree, NULL, "closing explicit scope `%s'",
381: toknames[n->tok]);
382: goto end;
383: }
384:
385: while (tree->last) {
386: t = tree->last->tok;
387: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
388: goto end;
1.1 kristaps 389: }
390:
1.16 kristaps 391: error = 0;
392:
393: end:
394:
1.15 kristaps 395: while (tree->last)
396: roffnode_free(tree);
397:
1.1 kristaps 398: free(tree);
1.17 kristaps 399:
1.1 kristaps 400: return(error ? 0 : 1);
401: }
402:
403:
404: struct rofftree *
1.15 kristaps 405: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 406: {
407: struct rofftree *tree;
408:
1.17 kristaps 409: assert(args);
410: assert(cb);
411:
1.12 kristaps 412: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
413: err(1, "calloc");
1.1 kristaps 414:
415: tree->state = ROFF_PRELUDE;
1.15 kristaps 416: tree->arg = args;
417:
418: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 419:
420: return(tree);
421: }
422:
423:
424: int
1.17 kristaps 425: roff_engine(struct rofftree *tree, char *buf)
1.1 kristaps 426: {
427:
1.17 kristaps 428: tree->cur = buf;
429: assert(buf);
1.12 kristaps 430:
1.17 kristaps 431: if (0 == *buf) {
1.12 kristaps 432: roff_warn(tree, buf, "blank line");
1.1 kristaps 433: return(0);
434: } else if ('.' != *buf)
1.17 kristaps 435: return(textparse(tree, buf));
1.1 kristaps 436:
1.17 kristaps 437: return(roffparse(tree, buf));
1.1 kristaps 438: }
439:
440:
441: static int
1.17 kristaps 442: textparse(const struct rofftree *tree, char *buf)
1.1 kristaps 443: {
1.17 kristaps 444:
445: return((*tree->cb.roffdata)(tree->arg, buf));
1.1 kristaps 446: }
447:
448:
449: static int
1.10 kristaps 450: roffargs(const struct rofftree *tree,
451: int tok, char *buf, char **argv)
1.1 kristaps 452: {
453: int i;
1.12 kristaps 454: char *p;
1.1 kristaps 455:
456: assert(tok >= 0 && tok < ROFF_MAX);
457: assert('.' == *buf);
458:
1.12 kristaps 459: p = buf;
460:
1.1 kristaps 461: /* LINTED */
462: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 463: if ('\"' == *buf) {
464: argv[i] = ++buf;
465: while (*buf && '\"' != *buf)
466: buf++;
467: if (0 == *buf) {
1.13 kristaps 468: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 469: "quote in argument "
470: "list for `%s'",
471: toknames[tok]);
1.10 kristaps 472: return(0);
473: }
474: } else {
475: argv[i] = buf++;
476: while (*buf && ! isspace(*buf))
477: buf++;
478: if (0 == *buf)
479: continue;
1.1 kristaps 480: }
481: *buf++ = 0;
482: while (*buf && isspace(*buf))
483: buf++;
484: }
485:
486: assert(i > 0);
1.10 kristaps 487: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 488: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 489: [tok]);
1.10 kristaps 490: return(0);
491: }
492:
493: argv[i] = NULL;
494: return(1);
1.1 kristaps 495: }
496:
497:
1.6 kristaps 498: /* XXX */
499: static int
500: roffscan(int tok, const int *tokv)
501: {
1.7 kristaps 502:
1.6 kristaps 503: if (NULL == tokv)
504: return(1);
505:
1.7 kristaps 506: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 507: if (tok == *tokv)
508: return(1);
509:
510: return(0);
511: }
512:
513:
1.1 kristaps 514: static int
1.17 kristaps 515: roffparse(struct rofftree *tree, char *buf)
1.1 kristaps 516: {
517: int tok, t;
1.6 kristaps 518: struct roffnode *n;
1.1 kristaps 519: char *argv[ROFF_MAXARG];
1.18 kristaps 520: char **argvp;
1.1 kristaps 521:
1.6 kristaps 522: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 523: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 524: return(0);
525: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 526: roff_err(tree, buf + 1, "unsupported macro `%s'",
527: toknames[tok]);
1.1 kristaps 528: return(0);
1.6 kristaps 529: } else if (ROFF_COMMENT == tokens[tok].type)
530: return(1);
1.5 kristaps 531:
1.10 kristaps 532: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 533: return(0);
1.12 kristaps 534:
1.18 kristaps 535: argvp = (char **)argv;
1.6 kristaps 536:
537: /*
1.12 kristaps 538: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 539: */
1.1 kristaps 540:
1.6 kristaps 541: if (ROFF_PRELUDE & tree->state) {
542: assert(NULL == tree->last);
543: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
544: } else
545: assert(tree->last);
546:
547: assert(ROFF_BODY & tree->state);
548:
549: /*
550: * First check that our possible parents and parent's possible
551: * children are satisfied.
552: */
553:
554: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 555: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
556: toknames[tok],
557: toknames[tree->last->tok]);
1.6 kristaps 558: return(0);
559: }
560:
561: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.18 kristaps 562: roff_err(tree, *argvp, "`%s' is invalid child of `%s'",
563: toknames[tok],
564: toknames[tree->last->tok]);
1.1 kristaps 565: return(0);
566: }
567:
568: /*
1.6 kristaps 569: * Branch if we're not a layout token.
1.1 kristaps 570: */
571:
1.6 kristaps 572: if (ROFF_LAYOUT != tokens[tok].type)
573: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 574:
1.6 kristaps 575: /*
576: * Check our scope rules.
577: */
1.1 kristaps 578:
1.6 kristaps 579: if (0 == tokens[tok].ctx)
580: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 581:
1.12 kristaps 582: /*
583: * First consider implicit-end tags, like as follows:
584: * .Sh SECTION 1
585: * .Sh SECTION 2
586: * In this, we want to close the scope of the NAME section. If
587: * there's an intermediary implicit-end tag, such as
588: * .Sh SECTION 1
589: * .Ss Subsection 1
590: * .Sh SECTION 2
591: * then it must be closed as well.
592: */
593:
1.6 kristaps 594: if (tok == tokens[tok].ctx) {
1.12 kristaps 595: /*
596: * First search up to the point where we must close.
597: * If one doesn't exist, then we can open a new scope.
598: */
599:
1.6 kristaps 600: for (n = tree->last; n; n = n->parent) {
601: assert(0 == tokens[n->tok].ctx ||
602: n->tok == tokens[n->tok].ctx);
603: if (n->tok == tok)
604: break;
1.10 kristaps 605: if (ROFF_SHALLOW & tokens[tok].flags) {
606: n = NULL;
607: break;
608: }
1.6 kristaps 609: }
1.10 kristaps 610:
611: /*
612: * Create a new scope, as no previous one exists to
613: * close out.
614: */
1.12 kristaps 615:
616: if (NULL == n)
1.6 kristaps 617: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 618:
619: /*
1.12 kristaps 620: * Close out all intermediary scoped blocks, then hang
621: * the current scope from our predecessor's parent.
1.10 kristaps 622: */
623:
1.1 kristaps 624: do {
625: t = tree->last->tok;
1.6 kristaps 626: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 627: return(0);
628: } while (t != tok);
1.6 kristaps 629:
630: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 631: }
632:
1.12 kristaps 633: /*
634: * Now consider explicit-end tags, where we want to close back
635: * to a specific tag. Example:
636: * .Bl
637: * .It Item.
638: * .El
639: * In this, the `El' tag closes out the scope of `Bl'.
640: */
641:
1.9 kristaps 642: assert(tree->last);
1.6 kristaps 643: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
644:
1.14 kristaps 645: /* LINTED */
1.6 kristaps 646: do {
647: t = tree->last->tok;
648: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
649: return(0);
650: } while (t != tokens[tok].ctx);
1.1 kristaps 651:
1.9 kristaps 652: assert(tree->last);
653: return(1);
1.1 kristaps 654: }
655:
656:
657: static int
658: rofffindarg(const char *name)
659: {
660: size_t i;
661:
662: /* FIXME: use a table, this is slow but ok for now. */
663:
664: /* LINTED */
665: for (i = 0; i < ROFF_ARGMAX; i++)
666: /* LINTED */
1.4 kristaps 667: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 668: return((int)i);
669:
670: return(ROFF_ARGMAX);
671: }
672:
673:
674: static int
1.6 kristaps 675: rofffindtok(const char *buf)
1.1 kristaps 676: {
1.6 kristaps 677: char token[4];
1.1 kristaps 678: size_t i;
679:
1.6 kristaps 680: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
681: token[i] = *buf;
682:
1.9 kristaps 683: if (i == 3)
1.6 kristaps 684: return(ROFF_MAX);
685:
686: token[i] = 0;
687:
1.1 kristaps 688: /* FIXME: use a table, this is slow but ok for now. */
689:
690: /* LINTED */
691: for (i = 0; i < ROFF_MAX; i++)
692: /* LINTED */
1.12 kristaps 693: if (0 == strcmp(toknames[i], token))
1.1 kristaps 694: return((int)i);
1.7 kristaps 695:
1.1 kristaps 696: return(ROFF_MAX);
697: }
698:
699:
1.2 kristaps 700: static int
701: rofffindcallable(const char *name)
702: {
703: int c;
704:
705: if (ROFF_MAX == (c = rofffindtok(name)))
706: return(ROFF_MAX);
1.8 kristaps 707: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 708: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
709: }
710:
711:
1.1 kristaps 712: static struct roffnode *
1.4 kristaps 713: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 714: {
715: struct roffnode *p;
716:
1.12 kristaps 717: if (NULL == (p = malloc(sizeof(struct roffnode))))
718: err(1, "malloc");
1.1 kristaps 719:
720: p->tok = tokid;
721: p->parent = tree->last;
722: tree->last = p;
1.9 kristaps 723:
1.1 kristaps 724: return(p);
725: }
726:
727:
1.5 kristaps 728: static int
729: roffargok(int tokid, int argid)
730: {
731: const int *c;
732:
733: if (NULL == (c = tokens[tokid].args))
734: return(0);
735:
736: for ( ; ROFF_ARGMAX != *c; c++)
737: if (argid == *c)
738: return(1);
739:
740: return(0);
741: }
742:
743:
1.1 kristaps 744: static void
1.15 kristaps 745: roffnode_free(struct rofftree *tree)
1.1 kristaps 746: {
747: struct roffnode *p;
748:
749: assert(tree->last);
750:
751: p = tree->last;
752: tree->last = tree->last->parent;
753: free(p);
754: }
755:
756:
1.6 kristaps 757: static int
1.12 kristaps 758: roffnextopt(const struct rofftree *tree, int tok,
1.18 kristaps 759: char ***in, char **val)
1.6 kristaps 760: {
1.18 kristaps 761: char *arg, **argv;
1.6 kristaps 762: int v;
763:
764: *val = NULL;
765: argv = *in;
766: assert(argv);
767:
768: if (NULL == (arg = *argv))
769: return(-1);
770: if ('-' != *arg)
771: return(-1);
772:
1.12 kristaps 773: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
774: roff_warn(tree, arg, "argument-like parameter `%s' to "
775: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 776: return(-1);
1.12 kristaps 777: }
778:
779: if ( ! roffargok(tok, v)) {
780: roff_warn(tree, arg, "invalid argument parameter `%s' to "
781: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 782: return(-1);
1.12 kristaps 783: }
784:
785: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 786: return(v);
787:
788: *in = ++argv;
789:
1.12 kristaps 790: if (NULL == *argv) {
791: roff_err(tree, arg, "empty value of `%s' for `%s'",
792: tokargnames[v], toknames[tok]);
793: return(ROFF_ARGMAX);
794: }
1.6 kristaps 795:
1.12 kristaps 796: return(v);
1.6 kristaps 797: }
798:
799:
1.1 kristaps 800: /* ARGSUSED */
801: static int
802: roff_Dd(ROFFCALL_ARGS)
803: {
804:
1.4 kristaps 805: if (ROFF_BODY & tree->state) {
806: assert( ! (ROFF_PRELUDE & tree->state));
807: assert(ROFF_PRELUDE_Dd & tree->state);
808: return(roff_text(tok, tree, argv, type));
809: }
810:
1.1 kristaps 811: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 812: assert( ! (ROFF_BODY & tree->state));
813:
1.6 kristaps 814: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 815: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 816: return(0);
817: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 818: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 819: return(0);
820: }
821:
1.4 kristaps 822: /* TODO: parse date. */
823:
1.1 kristaps 824: assert(NULL == tree->last);
825: tree->state |= ROFF_PRELUDE_Dd;
826:
827: return(1);
828: }
829:
830:
831: /* ARGSUSED */
832: static int
833: roff_Dt(ROFFCALL_ARGS)
834: {
835:
1.4 kristaps 836: if (ROFF_BODY & tree->state) {
837: assert( ! (ROFF_PRELUDE & tree->state));
838: assert(ROFF_PRELUDE_Dt & tree->state);
839: return(roff_text(tok, tree, argv, type));
840: }
841:
1.1 kristaps 842: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 843: assert( ! (ROFF_BODY & tree->state));
844:
1.6 kristaps 845: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 846: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 847: return(0);
1.6 kristaps 848: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 849: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 850: return(0);
1.1 kristaps 851: }
852:
1.4 kristaps 853: /* TODO: parse date. */
854:
1.1 kristaps 855: assert(NULL == tree->last);
856: tree->state |= ROFF_PRELUDE_Dt;
857:
858: return(1);
859: }
860:
861:
862: /* ARGSUSED */
863: static int
864: roff_Os(ROFFCALL_ARGS)
865: {
866:
867: if (ROFF_EXIT == type) {
1.18 kristaps 868: roffnode_free(tree);
869: return((*tree->cb.rofftail)(tree->arg));
1.4 kristaps 870: } else if (ROFF_BODY & tree->state) {
871: assert( ! (ROFF_PRELUDE & tree->state));
872: assert(ROFF_PRELUDE_Os & tree->state);
873: return(roff_text(tok, tree, argv, type));
874: }
1.1 kristaps 875:
876: assert(ROFF_PRELUDE & tree->state);
877: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
878: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 879: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 880: return(0);
881: }
882:
1.4 kristaps 883: /* TODO: extract OS. */
1.1 kristaps 884:
885: tree->state |= ROFF_PRELUDE_Os;
886: tree->state &= ~ROFF_PRELUDE;
887: tree->state |= ROFF_BODY;
888:
1.4 kristaps 889: assert(NULL == tree->last);
890:
1.18 kristaps 891: if (NULL == roffnode_new(tok, tree))
892: return(0);
893:
894: return((*tree->cb.roffhead)(tree->arg));
1.1 kristaps 895: }
896:
897:
898: /* ARGSUSED */
899: static int
1.2 kristaps 900: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 901: {
1.2 kristaps 902: int i, c, argcp[ROFF_MAXARG];
903: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 904:
1.4 kristaps 905: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 906: roff_err(tree, *argv, "`%s' disallowed in prelude",
907: toknames[tok]);
1.4 kristaps 908: return(0);
909: }
910:
1.2 kristaps 911: if (ROFF_EXIT == type) {
1.15 kristaps 912: roffnode_free(tree);
913: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 914: }
1.1 kristaps 915:
1.2 kristaps 916: i = 0;
1.12 kristaps 917: argv++;
1.5 kristaps 918:
1.12 kristaps 919: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
920: if (ROFF_ARGMAX == c)
1.5 kristaps 921: return(0);
1.12 kristaps 922:
1.2 kristaps 923: argcp[i] = c;
924: argvp[i] = v;
1.5 kristaps 925: i++;
1.1 kristaps 926: argv++;
927: }
928:
1.5 kristaps 929: argcp[i] = ROFF_ARGMAX;
930: argvp[i] = NULL;
931:
1.4 kristaps 932: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 933: return(0);
934:
1.18 kristaps 935: if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp))
936: return(0);
937:
938: if (NULL == *argv)
939: return(1);
940:
1.15 kristaps 941: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 942: return(0);
943:
944: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 945: while (*argv) {
1.18 kristaps 946: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 947: return(0);
948: }
1.18 kristaps 949: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 950: }
951:
1.1 kristaps 952: while (*argv) {
1.8 kristaps 953: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
954: if (NULL == tokens[c].cb) {
1.12 kristaps 955: roff_err(tree, *argv, "unsupported "
956: "macro `%s'",
957: toknames[c]);
1.8 kristaps 958: return(0);
959: }
1.14 kristaps 960: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 961: return(0);
1.14 kristaps 962: break;
1.8 kristaps 963: }
1.12 kristaps 964:
1.17 kristaps 965: assert(tree->arg);
1.15 kristaps 966: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 967: return(0);
968: }
1.12 kristaps 969:
1.18 kristaps 970: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 971: }
972:
973:
974: /* ARGSUSED */
975: static int
976: roff_text(ROFFCALL_ARGS)
977: {
978: int i, c, argcp[ROFF_MAXARG];
979: char *v, *argvp[ROFF_MAXARG];
980:
1.4 kristaps 981: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 982: roff_err(tree, *argv, "`%s' disallowed in prelude",
983: toknames[tok]);
1.4 kristaps 984: return(0);
985: }
986:
1.2 kristaps 987: i = 0;
1.12 kristaps 988: argv++;
1.5 kristaps 989:
1.12 kristaps 990: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
991: if (ROFF_ARGMAX == c)
1.2 kristaps 992: return(0);
1.12 kristaps 993:
1.2 kristaps 994: argcp[i] = c;
995: argvp[i] = v;
1.5 kristaps 996: i++;
1.1 kristaps 997: argv++;
998: }
999:
1.5 kristaps 1000: argcp[i] = ROFF_ARGMAX;
1001: argvp[i] = NULL;
1002:
1.15 kristaps 1003: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1004: return(0);
1.1 kristaps 1005:
1.2 kristaps 1006: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 1007: while (*argv) {
1.15 kristaps 1008: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1009: return(0);
1010: }
1.15 kristaps 1011: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1012: }
1.1 kristaps 1013:
1.2 kristaps 1014: while (*argv) {
1.8 kristaps 1015: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1016: if (NULL == tokens[c].cb) {
1.12 kristaps 1017: roff_err(tree, *argv, "unsupported "
1018: "macro `%s'",
1019: toknames[c]);
1.8 kristaps 1020: return(0);
1021: }
1.2 kristaps 1022: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1023: argv, ROFF_ENTER))
1.2 kristaps 1024: return(0);
1.14 kristaps 1025: break;
1.8 kristaps 1026: }
1.15 kristaps 1027: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1028: return(0);
1029: }
1.12 kristaps 1030:
1.15 kristaps 1031: return((*tree->cb.roffout)(tree->arg, tok));
1.6 kristaps 1032: }
1033:
1034:
1.9 kristaps 1035: /* ARGSUSED */
1.6 kristaps 1036: static int
1037: roff_comment(ROFFCALL_ARGS)
1038: {
1039:
1040: return(1);
1.1 kristaps 1041: }
1.9 kristaps 1042:
1043:
1044: /* ARGSUSED */
1045: static int
1046: roff_close(ROFFCALL_ARGS)
1047: {
1048:
1049: return(1);
1050: }
1.11 kristaps 1051:
1052:
1053: /* ARGSUSED */
1054: static int
1055: roff_special(ROFFCALL_ARGS)
1056: {
1057:
1.15 kristaps 1058: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1059: }
1.12 kristaps 1060:
1061:
1062: static void
1063: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1064: {
1065: va_list ap;
1066: char buf[128];
1067:
1068: va_start(ap, fmt);
1069: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1070: va_end(ap);
1071:
1.15 kristaps 1072: (*tree->cb.roffmsg)(tree->arg,
1073: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1074: }
1075:
1076:
1077: static void
1078: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1079: {
1080: va_list ap;
1081: char buf[128];
1082:
1083: va_start(ap, fmt);
1084: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1085: va_end(ap);
1086:
1.15 kristaps 1087: (*tree->cb.roffmsg)(tree->arg,
1088: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1089: }
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