Annotation of mandoc/roff.c, Revision 1.16
1.16 ! kristaps 1: /* $Id: roff.c,v 1.15 2008/11/28 15:25:49 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: {
1.16 ! kristaps 360: int error, t;
1.15 kristaps 361: struct roffnode *n;
1.1 kristaps 362:
1.16 ! kristaps 363: if ( ! flush)
! 364: goto end;
1.1 kristaps 365:
1.16 ! kristaps 366: error = 1;
1.1 kristaps 367:
1.16 ! kristaps 368: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 369: roff_warn(tree, NULL, "prelude never finished");
1.16 ! kristaps 370: goto end;
! 371: }
! 372:
! 373: for (n = tree->last; n->parent; n = n->parent) {
! 374: if (0 != tokens[n->tok].ctx)
! 375: break;
! 376: roff_warn(tree, NULL, "closing explicit scope `%s'",
! 377: toknames[n->tok]);
! 378: goto end;
! 379: }
! 380:
! 381: while (tree->last) {
! 382: t = tree->last->tok;
! 383: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
! 384: goto end;
1.1 kristaps 385: }
386:
1.16 ! kristaps 387: if ( ! (*tree->cb.roffhead)(tree->arg))
! 388: goto end;
! 389:
! 390: error = 0;
! 391:
! 392: end:
! 393:
1.15 kristaps 394: while (tree->last)
395: roffnode_free(tree);
396:
1.1 kristaps 397: free(tree);
398: return(error ? 0 : 1);
399: }
400:
401:
402: struct rofftree *
1.15 kristaps 403: roff_alloc(const struct roffcb *cb, void *args)
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;
1.15 kristaps 411: tree->arg = args;
412:
413: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 414:
1.16 ! kristaps 415: if ( ! (*tree->cb.roffhead)(args)) {
! 416: free(tree);
! 417: return(NULL);
! 418: }
! 419:
1.1 kristaps 420: return(tree);
421: }
422:
423:
424: int
425: roff_engine(struct rofftree *tree, char *buf, size_t sz)
426: {
427:
1.14 kristaps 428: tree->cur = NULL;
1.12 kristaps 429:
1.1 kristaps 430: if (0 == sz) {
1.12 kristaps 431: roff_warn(tree, buf, "blank line");
1.1 kristaps 432: return(0);
433: } else if ('.' != *buf)
434: return(textparse(tree, buf, sz));
435:
436: return(roffparse(tree, buf, sz));
437: }
438:
439:
440: static int
441: textparse(const struct rofftree *tree, const char *buf, size_t sz)
442: {
443:
444: /* Print text. */
445: return(1);
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
515: roffparse(struct rofftree *tree, char *buf, size_t sz)
516: {
517: int tok, t;
1.6 kristaps 518: struct roffnode *n;
1.1 kristaps 519: char *argv[ROFF_MAXARG];
520: const char **argvp;
521:
522: assert(sz > 0);
523:
1.6 kristaps 524: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 525: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 526: return(0);
527: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 528: roff_err(tree, buf + 1, "unsupported macro `%s'",
529: toknames[tok]);
1.1 kristaps 530: return(0);
1.6 kristaps 531: } else if (ROFF_COMMENT == tokens[tok].type)
532: return(1);
1.5 kristaps 533:
1.10 kristaps 534: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 535: return(0);
1.12 kristaps 536:
537: argvp = (const char **)argv;
1.6 kristaps 538:
539: /*
1.12 kristaps 540: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 541: */
1.1 kristaps 542:
1.6 kristaps 543: if (ROFF_PRELUDE & tree->state) {
544: assert(NULL == tree->last);
545: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
546: } else
547: assert(tree->last);
548:
549: assert(ROFF_BODY & tree->state);
550:
551: /*
552: * First check that our possible parents and parent's possible
553: * children are satisfied.
554: */
555:
556: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 557: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
558: toknames[tok],
559: toknames[tree->last->tok]);
1.6 kristaps 560: return(0);
561: }
562:
563: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.15 kristaps 564: roff_err(tree, *argvp, "`%s' is invalid child `%s'",
565: toknames[tree->last->tok],
566: toknames[tok]);
1.1 kristaps 567: return(0);
568: }
569:
570: /*
1.6 kristaps 571: * Branch if we're not a layout token.
1.1 kristaps 572: */
573:
1.6 kristaps 574: if (ROFF_LAYOUT != tokens[tok].type)
575: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 576:
1.6 kristaps 577: /*
578: * Check our scope rules.
579: */
1.1 kristaps 580:
1.6 kristaps 581: if (0 == tokens[tok].ctx)
582: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 583:
1.12 kristaps 584: /*
585: * First consider implicit-end tags, like as follows:
586: * .Sh SECTION 1
587: * .Sh SECTION 2
588: * In this, we want to close the scope of the NAME section. If
589: * there's an intermediary implicit-end tag, such as
590: * .Sh SECTION 1
591: * .Ss Subsection 1
592: * .Sh SECTION 2
593: * then it must be closed as well.
594: */
595:
1.6 kristaps 596: if (tok == tokens[tok].ctx) {
1.12 kristaps 597: /*
598: * First search up to the point where we must close.
599: * If one doesn't exist, then we can open a new scope.
600: */
601:
1.6 kristaps 602: for (n = tree->last; n; n = n->parent) {
603: assert(0 == tokens[n->tok].ctx ||
604: n->tok == tokens[n->tok].ctx);
605: if (n->tok == tok)
606: break;
1.10 kristaps 607: if (ROFF_SHALLOW & tokens[tok].flags) {
608: n = NULL;
609: break;
610: }
1.6 kristaps 611: }
1.10 kristaps 612:
613: /*
614: * Create a new scope, as no previous one exists to
615: * close out.
616: */
1.12 kristaps 617:
618: if (NULL == n)
1.6 kristaps 619: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 620:
621: /*
1.12 kristaps 622: * Close out all intermediary scoped blocks, then hang
623: * the current scope from our predecessor's parent.
1.10 kristaps 624: */
625:
1.1 kristaps 626: do {
627: t = tree->last->tok;
1.6 kristaps 628: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 629: return(0);
630: } while (t != tok);
1.6 kristaps 631:
632: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 633: }
634:
1.12 kristaps 635: /*
636: * Now consider explicit-end tags, where we want to close back
637: * to a specific tag. Example:
638: * .Bl
639: * .It Item.
640: * .El
641: * In this, the `El' tag closes out the scope of `Bl'.
642: */
643:
1.9 kristaps 644: assert(tree->last);
1.6 kristaps 645: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
646:
1.14 kristaps 647: /* LINTED */
1.6 kristaps 648: do {
649: t = tree->last->tok;
650: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
651: return(0);
652: } while (t != tokens[tok].ctx);
1.1 kristaps 653:
1.9 kristaps 654: assert(tree->last);
655: return(1);
1.1 kristaps 656: }
657:
658:
659: static int
660: rofffindarg(const char *name)
661: {
662: size_t i;
663:
664: /* FIXME: use a table, this is slow but ok for now. */
665:
666: /* LINTED */
667: for (i = 0; i < ROFF_ARGMAX; i++)
668: /* LINTED */
1.4 kristaps 669: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 670: return((int)i);
671:
672: return(ROFF_ARGMAX);
673: }
674:
675:
676: static int
1.6 kristaps 677: rofffindtok(const char *buf)
1.1 kristaps 678: {
1.6 kristaps 679: char token[4];
1.1 kristaps 680: size_t i;
681:
1.6 kristaps 682: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
683: token[i] = *buf;
684:
1.9 kristaps 685: if (i == 3)
1.6 kristaps 686: return(ROFF_MAX);
687:
688: token[i] = 0;
689:
1.1 kristaps 690: /* FIXME: use a table, this is slow but ok for now. */
691:
692: /* LINTED */
693: for (i = 0; i < ROFF_MAX; i++)
694: /* LINTED */
1.12 kristaps 695: if (0 == strcmp(toknames[i], token))
1.1 kristaps 696: return((int)i);
1.7 kristaps 697:
1.1 kristaps 698: return(ROFF_MAX);
699: }
700:
701:
1.2 kristaps 702: static int
703: rofffindcallable(const char *name)
704: {
705: int c;
706:
707: if (ROFF_MAX == (c = rofffindtok(name)))
708: return(ROFF_MAX);
1.8 kristaps 709: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 710: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
711: }
712:
713:
1.1 kristaps 714: static struct roffnode *
1.4 kristaps 715: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 716: {
717: struct roffnode *p;
718:
1.12 kristaps 719: if (NULL == (p = malloc(sizeof(struct roffnode))))
720: err(1, "malloc");
1.1 kristaps 721:
722: p->tok = tokid;
723: p->parent = tree->last;
724: tree->last = p;
1.9 kristaps 725:
1.1 kristaps 726: return(p);
727: }
728:
729:
1.5 kristaps 730: static int
731: roffargok(int tokid, int argid)
732: {
733: const int *c;
734:
735: if (NULL == (c = tokens[tokid].args))
736: return(0);
737:
738: for ( ; ROFF_ARGMAX != *c; c++)
739: if (argid == *c)
740: return(1);
741:
742: return(0);
743: }
744:
745:
1.1 kristaps 746: static void
1.15 kristaps 747: roffnode_free(struct rofftree *tree)
1.1 kristaps 748: {
749: struct roffnode *p;
750:
751: assert(tree->last);
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) {
1.15 kristaps 911: roffnode_free(tree);
912: return((*tree->cb.roffblkout)(tree->arg, tok));
1.2 kristaps 913: }
1.1 kristaps 914:
1.2 kristaps 915: i = 0;
1.12 kristaps 916: argv++;
1.5 kristaps 917:
1.12 kristaps 918: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
919: if (ROFF_ARGMAX == c)
1.5 kristaps 920: return(0);
1.12 kristaps 921:
1.2 kristaps 922: argcp[i] = c;
923: argvp[i] = v;
1.5 kristaps 924: i++;
1.1 kristaps 925: argv++;
926: }
927:
1.5 kristaps 928: argcp[i] = ROFF_ARGMAX;
929: argvp[i] = NULL;
930:
1.4 kristaps 931: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 932: return(0);
933:
1.15 kristaps 934: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 935: return(0);
936:
937: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 938: while (*argv) {
1.15 kristaps 939: if ( ! (*tree->cb.roffdata)
940: (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:
1.1 kristaps 949: while (*argv) {
1.8 kristaps 950: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
951: if (NULL == tokens[c].cb) {
1.12 kristaps 952: roff_err(tree, *argv, "unsupported "
953: "macro `%s'",
954: toknames[c]);
1.8 kristaps 955: return(0);
956: }
1.14 kristaps 957: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 958: return(0);
1.14 kristaps 959: break;
1.8 kristaps 960: }
1.12 kristaps 961:
1.15 kristaps 962: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 963: return(0);
964: }
1.12 kristaps 965:
1.15 kristaps 966: if ( ! ((*tree->cb.roffout)(tree->arg, tok)))
1.2 kristaps 967: return(0);
1.15 kristaps 968: return((*tree->cb.roffblkin)(tree->arg, tok));
1.2 kristaps 969: }
970:
971:
972: /* ARGSUSED */
973: static int
974: roff_text(ROFFCALL_ARGS)
975: {
976: int i, c, argcp[ROFF_MAXARG];
977: char *v, *argvp[ROFF_MAXARG];
978:
1.4 kristaps 979: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 980: roff_err(tree, *argv, "`%s' disallowed in prelude",
981: toknames[tok]);
1.4 kristaps 982: return(0);
983: }
984:
1.2 kristaps 985: i = 0;
1.12 kristaps 986: argv++;
1.5 kristaps 987:
1.12 kristaps 988: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
989: if (ROFF_ARGMAX == c)
1.2 kristaps 990: return(0);
1.12 kristaps 991:
1.2 kristaps 992: argcp[i] = c;
993: argvp[i] = v;
1.5 kristaps 994: i++;
1.1 kristaps 995: argv++;
996: }
997:
1.5 kristaps 998: argcp[i] = ROFF_ARGMAX;
999: argvp[i] = NULL;
1000:
1.15 kristaps 1001: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1002: return(0);
1.1 kristaps 1003:
1.2 kristaps 1004: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 1005: while (*argv) {
1.15 kristaps 1006: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1007: return(0);
1008: }
1.15 kristaps 1009: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1010: }
1.1 kristaps 1011:
1.2 kristaps 1012: while (*argv) {
1.8 kristaps 1013: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1014: if (NULL == tokens[c].cb) {
1.12 kristaps 1015: roff_err(tree, *argv, "unsupported "
1016: "macro `%s'",
1017: toknames[c]);
1.8 kristaps 1018: return(0);
1019: }
1.2 kristaps 1020: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1021: argv, ROFF_ENTER))
1.2 kristaps 1022: return(0);
1.14 kristaps 1023: break;
1.8 kristaps 1024: }
1.15 kristaps 1025: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1026: return(0);
1027: }
1.12 kristaps 1028:
1.15 kristaps 1029: return((*tree->cb.roffout)(tree->arg, tok));
1.6 kristaps 1030: }
1031:
1032:
1.9 kristaps 1033: /* ARGSUSED */
1.6 kristaps 1034: static int
1035: roff_comment(ROFFCALL_ARGS)
1036: {
1037:
1038: return(1);
1.1 kristaps 1039: }
1.9 kristaps 1040:
1041:
1042: /* ARGSUSED */
1043: static int
1044: roff_close(ROFFCALL_ARGS)
1045: {
1046:
1047: return(1);
1048: }
1.11 kristaps 1049:
1050:
1051: /* ARGSUSED */
1052: static int
1053: roff_special(ROFFCALL_ARGS)
1054: {
1055:
1.15 kristaps 1056: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1057: }
1.12 kristaps 1058:
1059:
1060: static void
1061: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1062: {
1063: va_list ap;
1064: char buf[128];
1065:
1066: va_start(ap, fmt);
1067: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1068: va_end(ap);
1069:
1.15 kristaps 1070: (*tree->cb.roffmsg)(tree->arg,
1071: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1072: }
1073:
1074:
1075: static void
1076: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1077: {
1078: va_list ap;
1079: char buf[128];
1080:
1081: va_start(ap, fmt);
1082: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1083: va_end(ap);
1084:
1.15 kristaps 1085: (*tree->cb.roffmsg)(tree->arg,
1086: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1087: }
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