Annotation of mandoc/roff.c, Revision 1.14
1.14 ! kristaps 1: /* $Id: roff.c,v 1.13 2008/11/27 17:27:50 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:
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, \
57: const 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". */
71: #define ROFF_QUOTES (1 << 2) /* Quoted args. */
1.10 kristaps 72: #define ROFF_SHALLOW (1 << 3) /* Nesting block. */
1.1 kristaps 73: };
74:
75: struct roffarg {
76: int flags;
1.5 kristaps 77: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 78: };
79:
80: struct roffnode {
1.5 kristaps 81: int tok; /* Token id. */
82: struct roffnode *parent; /* Parent (or NULL). */
83: size_t line; /* Parsed at line. */
1.1 kristaps 84: };
85:
86: struct rofftree {
1.5 kristaps 87: struct roffnode *last; /* Last parsed node. */
1.14 ! kristaps 88: char *cur;
! 89:
1.5 kristaps 90: time_t date; /* `Dd' results. */
91: char os[64]; /* `Os' results. */
92: char title[64]; /* `Dt' results. */
93: char section[64]; /* `Dt' results. */
94: char volume[64]; /* `Dt' results. */
1.14 ! kristaps 95:
1.1 kristaps 96: int state;
1.5 kristaps 97: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
98: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
99: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
100: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
101: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 ! kristaps 102:
1.5 kristaps 103: struct md_mbuf *mbuf; /* Output (or NULL). */
104: const struct md_args *args; /* Global args. */
105: const struct md_rbuf *rbuf; /* Input. */
1.6 kristaps 106: const struct roffcb *cb;
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 *);
1.1 kristaps 120: static void roffnode_free(int, struct rofftree *);
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 *,
135: int, const char ***, char **);
1.1 kristaps 136: static int roffparse(struct rofftree *, char *, size_t);
137: static int textparse(const struct rofftree *,
138: const char *, size_t);
139:
1.6 kristaps 140:
1.7 kristaps 141: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
142: ROFF_ARGMAX };
143: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 144: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
145: ROFF_Compact, ROFF_ARGMAX };
146: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 147: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
148: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
149: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
150: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
151: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 152: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 153: static const int roffarg_St[] = {
154: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
155: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
156: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
157: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
158: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
159: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
160: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
161: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
162: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
163: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
164: ROFF_ARGMAX };
1.5 kristaps 165:
1.6 kristaps 166: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 167: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 168: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 169: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
170: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
171: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 172:
173: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 174: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
175: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 176: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 177: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 178:
1.5 kristaps 179: /* Table of all known tokens. */
1.14 ! kristaps 180: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 181: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
182: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
183: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
184: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 185: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
186: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
187: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 188: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
189: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 190: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 191: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 192: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 193: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 194: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
196: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
203: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 214: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 215: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 216: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 217: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 218: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 238: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.6 kristaps 240: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 243: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 248: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 253: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
254: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 262: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 263: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 264: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 265: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
266: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 270: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 271: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 272: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 273: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 274: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 275: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
276: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 ! kristaps 277: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 278: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 ! kristaps 279: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 280: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 281: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 282: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 283: };
1.1 kristaps 284:
1.5 kristaps 285: /* Table of all known token arguments. */
1.14 ! kristaps 286: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 287: 0, 0, 0, 0,
288: 0, ROFF_VALUE, ROFF_VALUE, 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: 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: };
1.1 kristaps 303:
1.14 ! kristaps 304: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 305: "\\\"", "Dd", "Dt", "Os",
306: "Sh", "Ss", "Pp", "D1",
307: "Dl", "Bd", "Ed", "Bl",
308: "El", "It", "Ad", "An",
309: "Ar", "Cd", "Cm", "Dv",
310: "Er", "Ev", "Ex", "Fa",
311: "Fd", "Fl", "Fn", "Ft",
312: "Ic", "In", "Li", "Nd",
313: "Nm", "Op", "Ot", "Pa",
314: "Rv", "St", "Va", "Vt",
315: "Xr", "\%A", "\%B", "\%D",
316: "\%I", "\%J", "\%N", "\%O",
317: "\%P", "\%R", "\%T", "\%V",
318: "Ac", "Ao", "Aq", "At",
319: "Bc", "Bf", "Bo", "Bq",
320: "Bsx", "Bx", "Db", "Dc",
321: "Do", "Dq", "Ec", "Ef",
322: "Em", "Eo", "Fx", "Ms",
323: "No", "Ns", "Nx", "Ox",
324: "Pc", "Pf", "Po", "Pq",
325: "Qc", "Ql", "Qo", "Qq",
326: "Re", "Rs", "Sc", "So",
327: "Sq", "Sm", "Sx", "Sy",
328: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 329: "Fo", "Fc", "Oo", "Oc",
330: "Bk", "Ek",
1.5 kristaps 331: };
332:
1.14 ! kristaps 333: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 334: "split", "nosplit", "ragged",
335: "unfilled", "literal", "file",
336: "offset", "bullet", "dash",
337: "hyphen", "item", "enum",
338: "tag", "diag", "hang",
339: "ohang", "inset", "column",
340: "width", "compact", "std",
341: "p1003.1-88", "p1003.1-90", "p1003.1-96",
342: "p1003.1-2001", "p1003.1-2004", "p1003.1",
343: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
344: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
345: "p1003.2", "p1387.2", "isoC-90",
346: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
347: "isoC-99", "ansiC", "ansiC-89",
348: "ansiC-99", "ieee754", "iso8802-3",
349: "xpg3", "xpg4", "xpg4.2",
350: "xpg4.3", "xbd5", "xcu5",
351: "xsh5", "xns5", "xns5.2d2.0",
352: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 353: "svid4", "filled", "words",
1.5 kristaps 354: };
355:
356: const char *const *toknames = toknamesp;
357: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 358:
1.1 kristaps 359:
360: int
361: roff_free(struct rofftree *tree, int flush)
362: {
1.14 ! kristaps 363: int error, tok;
1.1 kristaps 364:
365: assert(tree->mbuf);
366: if ( ! flush)
367: tree->mbuf = NULL;
368:
369: /* LINTED */
1.14 ! kristaps 370: while (tree->last) {
! 371: if (tree->last->parent) {
! 372: tok = tree->last->tok;
! 373: if (tokens[tok].ctx == 0) {
! 374: warnx("%s: closing out explicit scope "
! 375: "of `%s' from line %zu",
! 376: tree->rbuf->name,
! 377: toknames[tok],
! 378: tree->last->line);
! 379: tree->mbuf = NULL;
! 380: }
! 381: }
1.1 kristaps 382: if ( ! (*tokens[tree->last->tok].cb)
1.2 kristaps 383: (tree->last->tok, tree, NULL, ROFF_EXIT))
1.1 kristaps 384: /* Disallow flushing. */
385: tree->mbuf = NULL;
1.14 ! kristaps 386: }
1.1 kristaps 387:
388: error = tree->mbuf ? 0 : 1;
389:
390: if (tree->mbuf && (ROFF_PRELUDE & tree->state)) {
1.14 ! kristaps 391: warnx("%s: prelude never finished",
! 392: tree->rbuf->name);
1.1 kristaps 393: error = 1;
394: }
395:
396: free(tree);
397: return(error ? 0 : 1);
398: }
399:
400:
401: struct rofftree *
402: roff_alloc(const struct md_args *args, struct md_mbuf *out,
1.6 kristaps 403: const struct md_rbuf *in, const struct roffcb *cb)
1.1 kristaps 404: {
405: struct rofftree *tree;
406:
1.12 kristaps 407: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
408: err(1, "calloc");
1.1 kristaps 409:
410: tree->state = ROFF_PRELUDE;
411: tree->args = args;
412: tree->mbuf = out;
413: tree->rbuf = in;
1.6 kristaps 414: tree->cb = cb;
1.1 kristaps 415:
416: return(tree);
417: }
418:
419:
420: int
421: roff_engine(struct rofftree *tree, char *buf, size_t sz)
422: {
423:
1.14 ! kristaps 424: tree->cur = NULL;
1.12 kristaps 425:
1.1 kristaps 426: if (0 == sz) {
1.12 kristaps 427: roff_warn(tree, buf, "blank line");
1.1 kristaps 428: return(0);
429: } else if ('.' != *buf)
430: return(textparse(tree, buf, sz));
431:
432: return(roffparse(tree, buf, sz));
433: }
434:
435:
436: static int
437: textparse(const struct rofftree *tree, const char *buf, size_t sz)
438: {
439:
440: /* Print text. */
441: return(1);
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
511: roffparse(struct rofftree *tree, char *buf, size_t sz)
512: {
513: int tok, t;
1.6 kristaps 514: struct roffnode *n;
1.1 kristaps 515: char *argv[ROFF_MAXARG];
516: const char **argvp;
517:
518: assert(sz > 0);
519:
1.6 kristaps 520: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 521: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 522: return(0);
523: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 524: roff_err(tree, buf + 1, "unsupported macro `%s'",
525: toknames[tok]);
1.1 kristaps 526: return(0);
1.6 kristaps 527: } else if (ROFF_COMMENT == tokens[tok].type)
528: return(1);
1.5 kristaps 529:
1.10 kristaps 530: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 531: return(0);
1.12 kristaps 532:
533: argvp = (const char **)argv;
1.6 kristaps 534:
535: /*
1.12 kristaps 536: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 537: */
1.1 kristaps 538:
1.6 kristaps 539: if (ROFF_PRELUDE & tree->state) {
540: assert(NULL == tree->last);
541: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
542: } else
543: assert(tree->last);
544:
545: assert(ROFF_BODY & tree->state);
546:
547: /*
548: * First check that our possible parents and parent's possible
549: * children are satisfied.
550: */
551:
552: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.14 ! kristaps 553: roff_err(tree, *argvp, "`%s' has invalid parent `%s' "
! 554: "from line %zu", toknames[tok],
! 555: toknames[tree->rbuf->line],
! 556: tree->rbuf->line);
1.6 kristaps 557: return(0);
558: }
559:
560: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.14 ! kristaps 561: roff_err(tree, *argvp, "`%s' is invalid child for "
! 562: "`%s' from line %zu", toknames[tok],
! 563: toknames[tree->rbuf->line],
1.1 kristaps 564: tree->rbuf->line);
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:
1.4 kristaps 720: p->line = tree->rbuf->line;
1.1 kristaps 721: p->tok = tokid;
722: p->parent = tree->last;
723: tree->last = p;
1.9 kristaps 724:
1.1 kristaps 725: return(p);
726: }
727:
728:
1.5 kristaps 729: static int
730: roffargok(int tokid, int argid)
731: {
732: const int *c;
733:
734: if (NULL == (c = tokens[tokid].args))
735: return(0);
736:
737: for ( ; ROFF_ARGMAX != *c; c++)
738: if (argid == *c)
739: return(1);
740:
741: return(0);
742: }
743:
744:
1.1 kristaps 745: static void
746: roffnode_free(int tokid, struct rofftree *tree)
747: {
748: struct roffnode *p;
749:
750: assert(tree->last);
751: assert(tree->last->tok == tokid);
752:
753: p = tree->last;
754: tree->last = tree->last->parent;
755: free(p);
756: }
757:
758:
1.6 kristaps 759: static int
1.12 kristaps 760: roffnextopt(const struct rofftree *tree, int tok,
761: const char ***in, char **val)
1.6 kristaps 762: {
763: const char *arg, **argv;
764: int v;
765:
766: *val = NULL;
767: argv = *in;
768: assert(argv);
769:
770: if (NULL == (arg = *argv))
771: return(-1);
772: if ('-' != *arg)
773: return(-1);
774:
1.12 kristaps 775: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
776: roff_warn(tree, arg, "argument-like parameter `%s' to "
777: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 778: return(-1);
1.12 kristaps 779: }
780:
781: if ( ! roffargok(tok, v)) {
782: roff_warn(tree, arg, "invalid argument parameter `%s' to "
783: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 784: return(-1);
1.12 kristaps 785: }
786:
787: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 788: return(v);
789:
790: *in = ++argv;
791:
1.12 kristaps 792: if (NULL == *argv) {
793: roff_err(tree, arg, "empty value of `%s' for `%s'",
794: tokargnames[v], toknames[tok]);
795: return(ROFF_ARGMAX);
796: }
1.6 kristaps 797:
1.12 kristaps 798: return(v);
1.6 kristaps 799: }
800:
801:
1.1 kristaps 802: /* ARGSUSED */
803: static int
804: roff_Dd(ROFFCALL_ARGS)
805: {
806:
1.4 kristaps 807: if (ROFF_BODY & tree->state) {
808: assert( ! (ROFF_PRELUDE & tree->state));
809: assert(ROFF_PRELUDE_Dd & tree->state);
810: return(roff_text(tok, tree, argv, type));
811: }
812:
1.1 kristaps 813: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 814: assert( ! (ROFF_BODY & tree->state));
815:
1.6 kristaps 816: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 817: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 818: return(0);
819: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 820: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 821: return(0);
822: }
823:
1.4 kristaps 824: /* TODO: parse date. */
825:
1.1 kristaps 826: assert(NULL == tree->last);
827: tree->state |= ROFF_PRELUDE_Dd;
828:
829: return(1);
830: }
831:
832:
833: /* ARGSUSED */
834: static int
835: roff_Dt(ROFFCALL_ARGS)
836: {
837:
1.4 kristaps 838: if (ROFF_BODY & tree->state) {
839: assert( ! (ROFF_PRELUDE & tree->state));
840: assert(ROFF_PRELUDE_Dt & tree->state);
841: return(roff_text(tok, tree, argv, type));
842: }
843:
1.1 kristaps 844: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 845: assert( ! (ROFF_BODY & tree->state));
846:
1.6 kristaps 847: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 848: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 849: return(0);
1.6 kristaps 850: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 851: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 852: return(0);
1.1 kristaps 853: }
854:
1.4 kristaps 855: /* TODO: parse date. */
856:
1.1 kristaps 857: assert(NULL == tree->last);
858: tree->state |= ROFF_PRELUDE_Dt;
859:
860: return(1);
861: }
862:
863:
864: /* ARGSUSED */
865: static int
866: roff_Os(ROFFCALL_ARGS)
867: {
868:
869: if (ROFF_EXIT == type) {
1.4 kristaps 870: assert(ROFF_PRELUDE_Os & tree->state);
871: return(roff_layout(tok, tree, argv, type));
872: } else if (ROFF_BODY & tree->state) {
873: assert( ! (ROFF_PRELUDE & tree->state));
874: assert(ROFF_PRELUDE_Os & tree->state);
875: return(roff_text(tok, tree, argv, type));
876: }
1.1 kristaps 877:
878: assert(ROFF_PRELUDE & tree->state);
879: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
880: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 881: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 882: return(0);
883: }
884:
1.4 kristaps 885: /* TODO: extract OS. */
1.1 kristaps 886:
887: tree->state |= ROFF_PRELUDE_Os;
888: tree->state &= ~ROFF_PRELUDE;
889: tree->state |= ROFF_BODY;
890:
1.4 kristaps 891: assert(NULL == tree->last);
892:
893: return(roff_layout(tok, tree, argv, type));
1.1 kristaps 894: }
895:
896:
897: /* ARGSUSED */
898: static int
1.2 kristaps 899: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 900: {
1.2 kristaps 901: int i, c, argcp[ROFF_MAXARG];
902: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 903:
1.4 kristaps 904: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 905: roff_err(tree, *argv, "`%s' disallowed in prelude",
906: toknames[tok]);
1.4 kristaps 907: return(0);
908: }
909:
1.2 kristaps 910: if (ROFF_EXIT == type) {
911: roffnode_free(tok, tree);
1.13 kristaps 912: return((*tree->cb->roffblkout)(tree->args, tok));
1.2 kristaps 913: }
1.1 kristaps 914:
1.14 ! kristaps 915: assert(tree->mbuf);
! 916:
1.2 kristaps 917: i = 0;
1.12 kristaps 918: argv++;
1.5 kristaps 919:
1.12 kristaps 920: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
921: if (ROFF_ARGMAX == c)
1.5 kristaps 922: return(0);
1.12 kristaps 923:
1.2 kristaps 924: argcp[i] = c;
925: argvp[i] = v;
1.5 kristaps 926: i++;
1.1 kristaps 927: argv++;
928: }
929:
1.5 kristaps 930: argcp[i] = ROFF_ARGMAX;
931: argvp[i] = NULL;
932:
1.4 kristaps 933: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 934: return(0);
935:
1.13 kristaps 936: if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp))
1.2 kristaps 937: return(0);
938:
939: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 ! kristaps 940: while (*argv) {
! 941: if ( ! md_buf_putstring(tree->mbuf, *argv++))
! 942: return(0);
! 943: if ( ! md_buf_putchar(tree->mbuf, ' '))
! 944: return(0);
! 945: }
1.12 kristaps 946:
1.14 ! kristaps 947: if ( ! md_buf_putchar(tree->mbuf, '\n'))
! 948: return(0);
1.2 kristaps 949:
1.13 kristaps 950: if ( ! ((*tree->cb->roffout)(tree->args, tok)))
1.2 kristaps 951: return(0);
1.13 kristaps 952: return((*tree->cb->roffblkin)(tree->args, tok));
1.2 kristaps 953: }
954:
1.1 kristaps 955: while (*argv) {
1.8 kristaps 956: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
957: if (NULL == tokens[c].cb) {
1.12 kristaps 958: roff_err(tree, *argv, "unsupported "
959: "macro `%s'",
960: toknames[c]);
1.8 kristaps 961: return(0);
962: }
1.14 ! kristaps 963: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 964: return(0);
1.14 ! kristaps 965: break;
1.8 kristaps 966: }
1.12 kristaps 967:
1.14 ! kristaps 968: if ( ! md_buf_putstring(tree->mbuf, *argv++))
! 969: return(0);
! 970: if ( ! md_buf_putchar(tree->mbuf, ' '))
! 971: return(0);
! 972: }
1.12 kristaps 973:
1.14 ! kristaps 974: if (NULL == *argv && ! md_buf_putchar(tree->mbuf, '\n'))
! 975: return(0);
1.2 kristaps 976:
1.13 kristaps 977: if ( ! ((*tree->cb->roffout)(tree->args, tok)))
1.2 kristaps 978: return(0);
1.13 kristaps 979: return((*tree->cb->roffblkin)(tree->args, tok));
1.2 kristaps 980: }
981:
982:
983: /* ARGSUSED */
984: static int
985: roff_text(ROFFCALL_ARGS)
986: {
987: int i, c, argcp[ROFF_MAXARG];
988: char *v, *argvp[ROFF_MAXARG];
989:
1.14 ! kristaps 990: assert(tree->mbuf);
! 991:
1.4 kristaps 992: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 993: roff_err(tree, *argv, "`%s' disallowed in prelude",
994: toknames[tok]);
1.4 kristaps 995: return(0);
996: }
997:
1.2 kristaps 998: i = 0;
1.12 kristaps 999: argv++;
1.5 kristaps 1000:
1.12 kristaps 1001: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
1002: if (ROFF_ARGMAX == c)
1.2 kristaps 1003: return(0);
1.12 kristaps 1004:
1.2 kristaps 1005: argcp[i] = c;
1006: argvp[i] = v;
1.5 kristaps 1007: i++;
1.1 kristaps 1008: argv++;
1009: }
1010:
1.5 kristaps 1011: argcp[i] = ROFF_ARGMAX;
1012: argvp[i] = NULL;
1013:
1.13 kristaps 1014: if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp))
1.2 kristaps 1015: return(0);
1.1 kristaps 1016:
1.2 kristaps 1017: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 ! kristaps 1018: while (*argv) {
! 1019: if ( ! md_buf_putstring(tree->mbuf, *argv++))
! 1020: return(0);
! 1021: if ( ! md_buf_putchar(tree->mbuf, ' '))
! 1022: return(0);
! 1023: }
! 1024: if ( ! md_buf_putchar(tree->mbuf, '\n'))
! 1025: return(0);
1.13 kristaps 1026: return((*tree->cb->roffout)(tree->args, tok));
1.2 kristaps 1027: }
1.1 kristaps 1028:
1.2 kristaps 1029: while (*argv) {
1.8 kristaps 1030: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1031: if (NULL == tokens[c].cb) {
1.12 kristaps 1032: roff_err(tree, *argv, "unsupported "
1033: "macro `%s'",
1034: toknames[c]);
1.8 kristaps 1035: return(0);
1036: }
1.2 kristaps 1037: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1038: argv, ROFF_ENTER))
1.2 kristaps 1039: return(0);
1.14 ! kristaps 1040: break;
1.8 kristaps 1041: }
1.12 kristaps 1042:
1.14 ! kristaps 1043: if ( ! md_buf_putstring(tree->mbuf, *argv++))
! 1044: return(0);
! 1045: if ( ! md_buf_putchar(tree->mbuf, ' '))
! 1046: return(0);
! 1047: }
1.12 kristaps 1048:
1.14 ! kristaps 1049: if (NULL == *argv && ! md_buf_putchar(tree->mbuf, '\n'))
! 1050: return(0);
1.2 kristaps 1051:
1.13 kristaps 1052: return((*tree->cb->roffout)(tree->args, tok));
1.6 kristaps 1053: }
1054:
1055:
1.9 kristaps 1056: /* ARGSUSED */
1.6 kristaps 1057: static int
1058: roff_comment(ROFFCALL_ARGS)
1059: {
1060:
1061: return(1);
1.1 kristaps 1062: }
1.9 kristaps 1063:
1064:
1065: /* ARGSUSED */
1066: static int
1067: roff_close(ROFFCALL_ARGS)
1068: {
1069:
1070: return(1);
1071: }
1.11 kristaps 1072:
1073:
1074: /* ARGSUSED */
1075: static int
1076: roff_special(ROFFCALL_ARGS)
1077: {
1078:
1.14 ! kristaps 1079: return((*tree->cb->roffspecial)(tree->args, tok));
1.11 kristaps 1080: }
1.12 kristaps 1081:
1082:
1083: static void
1084: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1085: {
1086: va_list ap;
1087: char buf[128];
1088:
1089: va_start(ap, fmt);
1090: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1091: va_end(ap);
1092:
1093: (*tree->cb->roffmsg)(tree->args, ROFF_WARN, tree->cur, pos,
1094: tree->rbuf->name, tree->rbuf->line, buf);
1095: }
1096:
1097:
1098: static void
1099: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1100: {
1101: va_list ap;
1102: char buf[128];
1103:
1104: va_start(ap, fmt);
1105: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1106: va_end(ap);
1107:
1108: (*tree->cb->roffmsg)(tree->args, ROFF_ERROR, tree->cur, pos,
1109: tree->rbuf->name, tree->rbuf->line, buf);
1110: }
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