Annotation of mandoc/roff.c, Revision 1.15
1.15 ! kristaps 1: /* $Id: roff.c,v 1.14 2008/11/28 11:21:12 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). */
1.1 kristaps 83: };
84:
85: struct rofftree {
1.5 kristaps 86: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 87: char *cur;
88:
1.5 kristaps 89: time_t date; /* `Dd' results. */
90: char os[64]; /* `Os' results. */
91: char title[64]; /* `Dt' results. */
92: char section[64]; /* `Dt' results. */
93: char volume[64]; /* `Dt' results. */
1.14 kristaps 94:
1.1 kristaps 95: int state;
1.5 kristaps 96: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
97: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
98: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
99: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
100: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 101:
1.15 ! kristaps 102: struct roffcb cb;
! 103: void *arg;
1.1 kristaps 104: };
105:
106: static int roff_Dd(ROFFCALL_ARGS);
107: static int roff_Dt(ROFFCALL_ARGS);
108: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 109:
1.2 kristaps 110: static int roff_layout(ROFFCALL_ARGS);
111: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 112: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 113: static int roff_close(ROFFCALL_ARGS);
1.11 kristaps 114: static int roff_special(ROFFCALL_ARGS);
1.1 kristaps 115:
1.4 kristaps 116: static struct roffnode *roffnode_new(int, struct rofftree *);
1.15 ! kristaps 117: static void roffnode_free(struct rofftree *);
1.1 kristaps 118:
1.12 kristaps 119: static void roff_warn(const struct rofftree *,
120: const char *, char *, ...);
121: static void roff_err(const struct rofftree *,
122: const char *, char *, ...);
123:
1.7 kristaps 124: static int roffscan(int, const int *);
1.1 kristaps 125: static int rofffindtok(const char *);
126: static int rofffindarg(const char *);
1.2 kristaps 127: static int rofffindcallable(const char *);
1.10 kristaps 128: static int roffargs(const struct rofftree *,
129: int, char *, char **);
1.5 kristaps 130: static int roffargok(int, int);
1.12 kristaps 131: static int roffnextopt(const struct rofftree *,
132: int, const char ***, char **);
1.1 kristaps 133: static int roffparse(struct rofftree *, char *, size_t);
134: static int textparse(const struct rofftree *,
135: const char *, size_t);
136:
1.6 kristaps 137:
1.7 kristaps 138: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
139: ROFF_ARGMAX };
140: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 141: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
142: ROFF_Compact, ROFF_ARGMAX };
143: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 144: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
145: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
146: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
147: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
148: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 149: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 150: static const int roffarg_St[] = {
151: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
152: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
153: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
154: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
155: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
156: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
157: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
158: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
159: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
160: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
161: ROFF_ARGMAX };
1.5 kristaps 162:
1.6 kristaps 163: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 164: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 165: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 166: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
167: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
168: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 169:
170: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 171: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
172: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 173: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 174: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 175:
1.5 kristaps 176: /* Table of all known tokens. */
1.14 kristaps 177: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 178: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
179: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
180: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
181: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 182: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
183: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
184: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 185: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
186: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 187: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 188: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 189: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 190: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 191: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 192: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
193: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
200: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 212: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 214: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 215: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
216: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 235: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.6 kristaps 237: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 240: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 245: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 250: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
251: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 252: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
253: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 254: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 260: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 262: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
263: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 264: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
265: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 266: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 267: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 271: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 272: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
273: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 274: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 275: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 276: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 277: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 278: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 279: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 280: };
1.1 kristaps 281:
1.5 kristaps 282: /* Table of all known token arguments. */
1.14 kristaps 283: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 284: 0, 0, 0, 0,
285: 0, ROFF_VALUE, ROFF_VALUE, 0,
286: 0, 0, 0, 0,
287: 0, 0, 0, 0,
288: 0, 0, 0, 0,
289: 0, 0, 0, 0,
290: 0, 0, 0, 0,
291: 0, 0, 0, 0,
292: 0, 0, 0, 0,
293: 0, 0, 0, 0,
294: 0, 0, 0, 0,
295: 0, 0, 0, 0,
296: 0, 0, 0, 0,
297: 0, 0, 0, 0,
298: 0, 0, 0, 0,
299: };
1.1 kristaps 300:
1.14 kristaps 301: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 302: "\\\"", "Dd", "Dt", "Os",
303: "Sh", "Ss", "Pp", "D1",
304: "Dl", "Bd", "Ed", "Bl",
305: "El", "It", "Ad", "An",
306: "Ar", "Cd", "Cm", "Dv",
307: "Er", "Ev", "Ex", "Fa",
308: "Fd", "Fl", "Fn", "Ft",
309: "Ic", "In", "Li", "Nd",
310: "Nm", "Op", "Ot", "Pa",
311: "Rv", "St", "Va", "Vt",
312: "Xr", "\%A", "\%B", "\%D",
313: "\%I", "\%J", "\%N", "\%O",
314: "\%P", "\%R", "\%T", "\%V",
315: "Ac", "Ao", "Aq", "At",
316: "Bc", "Bf", "Bo", "Bq",
317: "Bsx", "Bx", "Db", "Dc",
318: "Do", "Dq", "Ec", "Ef",
319: "Em", "Eo", "Fx", "Ms",
320: "No", "Ns", "Nx", "Ox",
321: "Pc", "Pf", "Po", "Pq",
322: "Qc", "Ql", "Qo", "Qq",
323: "Re", "Rs", "Sc", "So",
324: "Sq", "Sm", "Sx", "Sy",
325: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 326: "Fo", "Fc", "Oo", "Oc",
327: "Bk", "Ek",
1.5 kristaps 328: };
329:
1.14 kristaps 330: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 331: "split", "nosplit", "ragged",
332: "unfilled", "literal", "file",
333: "offset", "bullet", "dash",
334: "hyphen", "item", "enum",
335: "tag", "diag", "hang",
336: "ohang", "inset", "column",
337: "width", "compact", "std",
338: "p1003.1-88", "p1003.1-90", "p1003.1-96",
339: "p1003.1-2001", "p1003.1-2004", "p1003.1",
340: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
341: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
342: "p1003.2", "p1387.2", "isoC-90",
343: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
344: "isoC-99", "ansiC", "ansiC-89",
345: "ansiC-99", "ieee754", "iso8802-3",
346: "xpg3", "xpg4", "xpg4.2",
347: "xpg4.3", "xbd5", "xcu5",
348: "xsh5", "xns5", "xns5.2d2.0",
349: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 350: "svid4", "filled", "words",
1.5 kristaps 351: };
352:
353: const char *const *toknames = toknamesp;
354: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 355:
1.1 kristaps 356:
357: int
358: roff_free(struct rofftree *tree, int flush)
359: {
1.15 ! kristaps 360: int error;
! 361: struct roffnode *n;
1.1 kristaps 362:
1.15 ! kristaps 363: error = 0;
1.1 kristaps 364:
1.15 ! kristaps 365: for (n = tree->last; n->parent; n = n->parent)
! 366: if (tokens[n->tok].ctx == 0) {
! 367: roff_warn(tree, NULL, "closing explicit scope "
! 368: "of `%s'", toknames[n->tok]);
! 369: error = 1;
1.14 kristaps 370: }
1.1 kristaps 371:
1.15 ! kristaps 372: if (0 == error && (ROFF_PRELUDE & tree->state)) {
! 373: roff_warn(tree, NULL, "prelude never finished");
1.1 kristaps 374: error = 1;
375: }
376:
1.15 ! kristaps 377: while (tree->last)
! 378: roffnode_free(tree);
! 379:
1.1 kristaps 380: free(tree);
381: return(error ? 0 : 1);
382: }
383:
384:
385: struct rofftree *
1.15 ! kristaps 386: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 387: {
388: struct rofftree *tree;
389:
1.12 kristaps 390: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
391: err(1, "calloc");
1.1 kristaps 392:
393: tree->state = ROFF_PRELUDE;
1.15 ! kristaps 394: tree->arg = args;
! 395:
! 396: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 397:
398: return(tree);
399: }
400:
401:
402: int
403: roff_engine(struct rofftree *tree, char *buf, size_t sz)
404: {
405:
1.14 kristaps 406: tree->cur = NULL;
1.12 kristaps 407:
1.1 kristaps 408: if (0 == sz) {
1.12 kristaps 409: roff_warn(tree, buf, "blank line");
1.1 kristaps 410: return(0);
411: } else if ('.' != *buf)
412: return(textparse(tree, buf, sz));
413:
414: return(roffparse(tree, buf, sz));
415: }
416:
417:
418: static int
419: textparse(const struct rofftree *tree, const char *buf, size_t sz)
420: {
421:
422: /* Print text. */
423: return(1);
424: }
425:
426:
427: static int
1.10 kristaps 428: roffargs(const struct rofftree *tree,
429: int tok, char *buf, char **argv)
1.1 kristaps 430: {
431: int i;
1.12 kristaps 432: char *p;
1.1 kristaps 433:
434: assert(tok >= 0 && tok < ROFF_MAX);
435: assert('.' == *buf);
436:
1.12 kristaps 437: p = buf;
438:
1.1 kristaps 439: /* LINTED */
440: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 441: if ('\"' == *buf) {
442: argv[i] = ++buf;
443: while (*buf && '\"' != *buf)
444: buf++;
445: if (0 == *buf) {
1.13 kristaps 446: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 447: "quote in argument "
448: "list for `%s'",
449: toknames[tok]);
1.10 kristaps 450: return(0);
451: }
452: } else {
453: argv[i] = buf++;
454: while (*buf && ! isspace(*buf))
455: buf++;
456: if (0 == *buf)
457: continue;
1.1 kristaps 458: }
459: *buf++ = 0;
460: while (*buf && isspace(*buf))
461: buf++;
462: }
463:
464: assert(i > 0);
1.10 kristaps 465: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 466: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 467: [tok]);
1.10 kristaps 468: return(0);
469: }
470:
471: argv[i] = NULL;
472: return(1);
1.1 kristaps 473: }
474:
475:
1.6 kristaps 476: /* XXX */
477: static int
478: roffscan(int tok, const int *tokv)
479: {
1.7 kristaps 480:
1.6 kristaps 481: if (NULL == tokv)
482: return(1);
483:
1.7 kristaps 484: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 485: if (tok == *tokv)
486: return(1);
487:
488: return(0);
489: }
490:
491:
1.1 kristaps 492: static int
493: roffparse(struct rofftree *tree, char *buf, size_t sz)
494: {
495: int tok, t;
1.6 kristaps 496: struct roffnode *n;
1.1 kristaps 497: char *argv[ROFF_MAXARG];
498: const char **argvp;
499:
500: assert(sz > 0);
501:
1.6 kristaps 502: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 503: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 504: return(0);
505: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 506: roff_err(tree, buf + 1, "unsupported macro `%s'",
507: toknames[tok]);
1.1 kristaps 508: return(0);
1.6 kristaps 509: } else if (ROFF_COMMENT == tokens[tok].type)
510: return(1);
1.5 kristaps 511:
1.10 kristaps 512: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 513: return(0);
1.12 kristaps 514:
515: argvp = (const char **)argv;
1.6 kristaps 516:
517: /*
1.12 kristaps 518: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 519: */
1.1 kristaps 520:
1.6 kristaps 521: if (ROFF_PRELUDE & tree->state) {
522: assert(NULL == tree->last);
523: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
524: } else
525: assert(tree->last);
526:
527: assert(ROFF_BODY & tree->state);
528:
529: /*
530: * First check that our possible parents and parent's possible
531: * children are satisfied.
532: */
533:
534: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 ! kristaps 535: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
! 536: toknames[tok],
! 537: toknames[tree->last->tok]);
1.6 kristaps 538: return(0);
539: }
540:
541: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.15 ! kristaps 542: roff_err(tree, *argvp, "`%s' is invalid child `%s'",
! 543: toknames[tree->last->tok],
! 544: toknames[tok]);
1.1 kristaps 545: return(0);
546: }
547:
548: /*
1.6 kristaps 549: * Branch if we're not a layout token.
1.1 kristaps 550: */
551:
1.6 kristaps 552: if (ROFF_LAYOUT != tokens[tok].type)
553: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 554:
1.6 kristaps 555: /*
556: * Check our scope rules.
557: */
1.1 kristaps 558:
1.6 kristaps 559: if (0 == tokens[tok].ctx)
560: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 561:
1.12 kristaps 562: /*
563: * First consider implicit-end tags, like as follows:
564: * .Sh SECTION 1
565: * .Sh SECTION 2
566: * In this, we want to close the scope of the NAME section. If
567: * there's an intermediary implicit-end tag, such as
568: * .Sh SECTION 1
569: * .Ss Subsection 1
570: * .Sh SECTION 2
571: * then it must be closed as well.
572: */
573:
1.6 kristaps 574: if (tok == tokens[tok].ctx) {
1.12 kristaps 575: /*
576: * First search up to the point where we must close.
577: * If one doesn't exist, then we can open a new scope.
578: */
579:
1.6 kristaps 580: for (n = tree->last; n; n = n->parent) {
581: assert(0 == tokens[n->tok].ctx ||
582: n->tok == tokens[n->tok].ctx);
583: if (n->tok == tok)
584: break;
1.10 kristaps 585: if (ROFF_SHALLOW & tokens[tok].flags) {
586: n = NULL;
587: break;
588: }
1.6 kristaps 589: }
1.10 kristaps 590:
591: /*
592: * Create a new scope, as no previous one exists to
593: * close out.
594: */
1.12 kristaps 595:
596: if (NULL == n)
1.6 kristaps 597: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 598:
599: /*
1.12 kristaps 600: * Close out all intermediary scoped blocks, then hang
601: * the current scope from our predecessor's parent.
1.10 kristaps 602: */
603:
1.1 kristaps 604: do {
605: t = tree->last->tok;
1.6 kristaps 606: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 607: return(0);
608: } while (t != tok);
1.6 kristaps 609:
610: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 611: }
612:
1.12 kristaps 613: /*
614: * Now consider explicit-end tags, where we want to close back
615: * to a specific tag. Example:
616: * .Bl
617: * .It Item.
618: * .El
619: * In this, the `El' tag closes out the scope of `Bl'.
620: */
621:
1.9 kristaps 622: assert(tree->last);
1.6 kristaps 623: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
624:
1.14 kristaps 625: /* LINTED */
1.6 kristaps 626: do {
627: t = tree->last->tok;
628: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
629: return(0);
630: } while (t != tokens[tok].ctx);
1.1 kristaps 631:
1.9 kristaps 632: assert(tree->last);
633: return(1);
1.1 kristaps 634: }
635:
636:
637: static int
638: rofffindarg(const char *name)
639: {
640: size_t i;
641:
642: /* FIXME: use a table, this is slow but ok for now. */
643:
644: /* LINTED */
645: for (i = 0; i < ROFF_ARGMAX; i++)
646: /* LINTED */
1.4 kristaps 647: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 648: return((int)i);
649:
650: return(ROFF_ARGMAX);
651: }
652:
653:
654: static int
1.6 kristaps 655: rofffindtok(const char *buf)
1.1 kristaps 656: {
1.6 kristaps 657: char token[4];
1.1 kristaps 658: size_t i;
659:
1.6 kristaps 660: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
661: token[i] = *buf;
662:
1.9 kristaps 663: if (i == 3)
1.6 kristaps 664: return(ROFF_MAX);
665:
666: token[i] = 0;
667:
1.1 kristaps 668: /* FIXME: use a table, this is slow but ok for now. */
669:
670: /* LINTED */
671: for (i = 0; i < ROFF_MAX; i++)
672: /* LINTED */
1.12 kristaps 673: if (0 == strcmp(toknames[i], token))
1.1 kristaps 674: return((int)i);
1.7 kristaps 675:
1.1 kristaps 676: return(ROFF_MAX);
677: }
678:
679:
1.2 kristaps 680: static int
681: rofffindcallable(const char *name)
682: {
683: int c;
684:
685: if (ROFF_MAX == (c = rofffindtok(name)))
686: return(ROFF_MAX);
1.8 kristaps 687: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 688: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
689: }
690:
691:
1.1 kristaps 692: static struct roffnode *
1.4 kristaps 693: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 694: {
695: struct roffnode *p;
696:
1.12 kristaps 697: if (NULL == (p = malloc(sizeof(struct roffnode))))
698: err(1, "malloc");
1.1 kristaps 699:
700: p->tok = tokid;
701: p->parent = tree->last;
702: tree->last = p;
1.9 kristaps 703:
1.1 kristaps 704: return(p);
705: }
706:
707:
1.5 kristaps 708: static int
709: roffargok(int tokid, int argid)
710: {
711: const int *c;
712:
713: if (NULL == (c = tokens[tokid].args))
714: return(0);
715:
716: for ( ; ROFF_ARGMAX != *c; c++)
717: if (argid == *c)
718: return(1);
719:
720: return(0);
721: }
722:
723:
1.1 kristaps 724: static void
1.15 ! kristaps 725: roffnode_free(struct rofftree *tree)
1.1 kristaps 726: {
727: struct roffnode *p;
728:
729: assert(tree->last);
730:
731: p = tree->last;
732: tree->last = tree->last->parent;
733: free(p);
734: }
735:
736:
1.6 kristaps 737: static int
1.12 kristaps 738: roffnextopt(const struct rofftree *tree, int tok,
739: const char ***in, char **val)
1.6 kristaps 740: {
741: const char *arg, **argv;
742: int v;
743:
744: *val = NULL;
745: argv = *in;
746: assert(argv);
747:
748: if (NULL == (arg = *argv))
749: return(-1);
750: if ('-' != *arg)
751: return(-1);
752:
1.12 kristaps 753: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
754: roff_warn(tree, arg, "argument-like parameter `%s' to "
755: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 756: return(-1);
1.12 kristaps 757: }
758:
759: if ( ! roffargok(tok, v)) {
760: roff_warn(tree, arg, "invalid argument parameter `%s' to "
761: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 762: return(-1);
1.12 kristaps 763: }
764:
765: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 766: return(v);
767:
768: *in = ++argv;
769:
1.12 kristaps 770: if (NULL == *argv) {
771: roff_err(tree, arg, "empty value of `%s' for `%s'",
772: tokargnames[v], toknames[tok]);
773: return(ROFF_ARGMAX);
774: }
1.6 kristaps 775:
1.12 kristaps 776: return(v);
1.6 kristaps 777: }
778:
779:
1.1 kristaps 780: /* ARGSUSED */
781: static int
782: roff_Dd(ROFFCALL_ARGS)
783: {
784:
1.4 kristaps 785: if (ROFF_BODY & tree->state) {
786: assert( ! (ROFF_PRELUDE & tree->state));
787: assert(ROFF_PRELUDE_Dd & tree->state);
788: return(roff_text(tok, tree, argv, type));
789: }
790:
1.1 kristaps 791: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 792: assert( ! (ROFF_BODY & tree->state));
793:
1.6 kristaps 794: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 795: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 796: return(0);
797: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 798: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 799: return(0);
800: }
801:
1.4 kristaps 802: /* TODO: parse date. */
803:
1.1 kristaps 804: assert(NULL == tree->last);
805: tree->state |= ROFF_PRELUDE_Dd;
806:
807: return(1);
808: }
809:
810:
811: /* ARGSUSED */
812: static int
813: roff_Dt(ROFFCALL_ARGS)
814: {
815:
1.4 kristaps 816: if (ROFF_BODY & tree->state) {
817: assert( ! (ROFF_PRELUDE & tree->state));
818: assert(ROFF_PRELUDE_Dt & tree->state);
819: return(roff_text(tok, tree, argv, type));
820: }
821:
1.1 kristaps 822: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 823: assert( ! (ROFF_BODY & tree->state));
824:
1.6 kristaps 825: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 826: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 827: return(0);
1.6 kristaps 828: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 829: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 830: return(0);
1.1 kristaps 831: }
832:
1.4 kristaps 833: /* TODO: parse date. */
834:
1.1 kristaps 835: assert(NULL == tree->last);
836: tree->state |= ROFF_PRELUDE_Dt;
837:
838: return(1);
839: }
840:
841:
842: /* ARGSUSED */
843: static int
844: roff_Os(ROFFCALL_ARGS)
845: {
846:
847: if (ROFF_EXIT == type) {
1.4 kristaps 848: assert(ROFF_PRELUDE_Os & tree->state);
849: return(roff_layout(tok, tree, argv, type));
850: } else if (ROFF_BODY & tree->state) {
851: assert( ! (ROFF_PRELUDE & tree->state));
852: assert(ROFF_PRELUDE_Os & tree->state);
853: return(roff_text(tok, tree, argv, type));
854: }
1.1 kristaps 855:
856: assert(ROFF_PRELUDE & tree->state);
857: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
858: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 859: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 860: return(0);
861: }
862:
1.4 kristaps 863: /* TODO: extract OS. */
1.1 kristaps 864:
865: tree->state |= ROFF_PRELUDE_Os;
866: tree->state &= ~ROFF_PRELUDE;
867: tree->state |= ROFF_BODY;
868:
1.4 kristaps 869: assert(NULL == tree->last);
870:
871: return(roff_layout(tok, tree, argv, type));
1.1 kristaps 872: }
873:
874:
875: /* ARGSUSED */
876: static int
1.2 kristaps 877: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 878: {
1.2 kristaps 879: int i, c, argcp[ROFF_MAXARG];
880: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 881:
1.4 kristaps 882: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 883: roff_err(tree, *argv, "`%s' disallowed in prelude",
884: toknames[tok]);
1.4 kristaps 885: return(0);
886: }
887:
1.2 kristaps 888: if (ROFF_EXIT == type) {
1.15 ! kristaps 889: roffnode_free(tree);
! 890: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 891: }
1.1 kristaps 892:
1.2 kristaps 893: i = 0;
1.12 kristaps 894: argv++;
1.5 kristaps 895:
1.12 kristaps 896: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
897: if (ROFF_ARGMAX == c)
1.5 kristaps 898: return(0);
1.12 kristaps 899:
1.2 kristaps 900: argcp[i] = c;
901: argvp[i] = v;
1.5 kristaps 902: i++;
1.1 kristaps 903: argv++;
904: }
905:
1.5 kristaps 906: argcp[i] = ROFF_ARGMAX;
907: argvp[i] = NULL;
908:
1.4 kristaps 909: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 910: return(0);
911:
1.15 ! kristaps 912: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 913: return(0);
914:
915: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 916: while (*argv) {
1.15 ! kristaps 917: if ( ! (*tree->cb.roffdata)
! 918: (tree->arg, *argv++))
1.14 kristaps 919: return(0);
920: }
1.12 kristaps 921:
1.15 ! kristaps 922: if ( ! ((*tree->cb.roffout)(tree->arg, tok)))
1.2 kristaps 923: return(0);
1.15 ! kristaps 924: return((*tree->cb.roffblkin)(tree->arg, tok));
1.2 kristaps 925: }
926:
1.1 kristaps 927: while (*argv) {
1.8 kristaps 928: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
929: if (NULL == tokens[c].cb) {
1.12 kristaps 930: roff_err(tree, *argv, "unsupported "
931: "macro `%s'",
932: toknames[c]);
1.8 kristaps 933: return(0);
934: }
1.14 kristaps 935: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 936: return(0);
1.14 kristaps 937: break;
1.8 kristaps 938: }
1.12 kristaps 939:
1.15 ! kristaps 940: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 941: return(0);
942: }
1.12 kristaps 943:
1.15 ! kristaps 944: if ( ! ((*tree->cb.roffout)(tree->arg, tok)))
1.2 kristaps 945: return(0);
1.15 ! kristaps 946: return((*tree->cb.roffblkin)(tree->arg, tok));
1.2 kristaps 947: }
948:
949:
950: /* ARGSUSED */
951: static int
952: roff_text(ROFFCALL_ARGS)
953: {
954: int i, c, argcp[ROFF_MAXARG];
955: char *v, *argvp[ROFF_MAXARG];
956:
1.4 kristaps 957: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 958: roff_err(tree, *argv, "`%s' disallowed in prelude",
959: toknames[tok]);
1.4 kristaps 960: return(0);
961: }
962:
1.2 kristaps 963: i = 0;
1.12 kristaps 964: argv++;
1.5 kristaps 965:
1.12 kristaps 966: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
967: if (ROFF_ARGMAX == c)
1.2 kristaps 968: return(0);
1.12 kristaps 969:
1.2 kristaps 970: argcp[i] = c;
971: argvp[i] = v;
1.5 kristaps 972: i++;
1.1 kristaps 973: argv++;
974: }
975:
1.5 kristaps 976: argcp[i] = ROFF_ARGMAX;
977: argvp[i] = NULL;
978:
1.15 ! kristaps 979: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 980: return(0);
1.1 kristaps 981:
1.2 kristaps 982: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 983: while (*argv) {
1.15 ! kristaps 984: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 985: return(0);
986: }
1.15 ! kristaps 987: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 988: }
1.1 kristaps 989:
1.2 kristaps 990: while (*argv) {
1.8 kristaps 991: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
992: if (NULL == tokens[c].cb) {
1.12 kristaps 993: roff_err(tree, *argv, "unsupported "
994: "macro `%s'",
995: toknames[c]);
1.8 kristaps 996: return(0);
997: }
1.2 kristaps 998: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 999: argv, ROFF_ENTER))
1.2 kristaps 1000: return(0);
1.14 kristaps 1001: break;
1.8 kristaps 1002: }
1.15 ! kristaps 1003: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1004: return(0);
1005: }
1.12 kristaps 1006:
1.15 ! kristaps 1007: return((*tree->cb.roffout)(tree->arg, tok));
1.6 kristaps 1008: }
1009:
1010:
1.9 kristaps 1011: /* ARGSUSED */
1.6 kristaps 1012: static int
1013: roff_comment(ROFFCALL_ARGS)
1014: {
1015:
1016: return(1);
1.1 kristaps 1017: }
1.9 kristaps 1018:
1019:
1020: /* ARGSUSED */
1021: static int
1022: roff_close(ROFFCALL_ARGS)
1023: {
1024:
1025: return(1);
1026: }
1.11 kristaps 1027:
1028:
1029: /* ARGSUSED */
1030: static int
1031: roff_special(ROFFCALL_ARGS)
1032: {
1033:
1.15 ! kristaps 1034: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1035: }
1.12 kristaps 1036:
1037:
1038: static void
1039: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1040: {
1041: va_list ap;
1042: char buf[128];
1043:
1044: va_start(ap, fmt);
1045: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1046: va_end(ap);
1047:
1.15 ! kristaps 1048: (*tree->cb.roffmsg)(tree->arg,
! 1049: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1050: }
1051:
1052:
1053: static void
1054: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1055: {
1056: va_list ap;
1057: char buf[128];
1058:
1059: va_start(ap, fmt);
1060: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1061: va_end(ap);
1062:
1.15 ! kristaps 1063: (*tree->cb.roffmsg)(tree->arg,
! 1064: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1065: }
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