Annotation of mandoc/roff.c, Revision 1.13
1.13 ! kristaps 1: /* $Id: roff.c,v 1.12 2008/11/27 16:54:58 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. */
88: time_t date; /* `Dd' results. */
1.12 kristaps 89: char *cur;
1.5 kristaps 90: char os[64]; /* `Os' results. */
91: char title[64]; /* `Dt' results. */
92: char section[64]; /* `Dt' results. */
93: char volume[64]; /* `Dt' results. */
1.1 kristaps 94: int state;
1.5 kristaps 95: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
96: /* FIXME: if we had prev ptrs, this wouldn't be necessary. */
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. */
101: struct md_mbuf *mbuf; /* Output (or NULL). */
102: const struct md_args *args; /* Global args. */
103: const struct md_rbuf *rbuf; /* Input. */
1.6 kristaps 104: const struct roffcb *cb;
1.1 kristaps 105: };
106:
107: static int roff_Dd(ROFFCALL_ARGS);
108: static int roff_Dt(ROFFCALL_ARGS);
109: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 110:
1.2 kristaps 111: static int roff_layout(ROFFCALL_ARGS);
112: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 113: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 114: static int roff_close(ROFFCALL_ARGS);
1.11 kristaps 115: static int roff_special(ROFFCALL_ARGS);
1.1 kristaps 116:
1.4 kristaps 117: static struct roffnode *roffnode_new(int, struct rofftree *);
1.1 kristaps 118: static void roffnode_free(int, struct rofftree *);
119:
1.12 kristaps 120: static void roff_warn(const struct rofftree *,
121: const char *, char *, ...);
122: static void roff_err(const struct rofftree *,
123: const char *, char *, ...);
124:
1.7 kristaps 125: static int roffscan(int, const int *);
1.1 kristaps 126: static int rofffindtok(const char *);
127: static int rofffindarg(const char *);
1.2 kristaps 128: static int rofffindcallable(const char *);
1.10 kristaps 129: static int roffargs(const struct rofftree *,
130: int, char *, char **);
1.5 kristaps 131: static int roffargok(int, int);
1.12 kristaps 132: static int roffnextopt(const struct rofftree *,
133: int, const char ***, char **);
1.1 kristaps 134: static int roffparse(struct rofftree *, char *, size_t);
135: static int textparse(const struct rofftree *,
136: const char *, size_t);
137:
1.6 kristaps 138:
1.7 kristaps 139: static const int roffarg_An[] = { ROFF_Split, ROFF_Nosplit,
140: ROFF_ARGMAX };
141: static const int roffarg_Bd[] = { ROFF_Ragged, ROFF_Unfilled,
1.12 kristaps 142: ROFF_Literal, ROFF_File, ROFF_Offset, ROFF_Filled,
143: ROFF_Compact, ROFF_ARGMAX };
144: static const int roffarg_Bk[] = { ROFF_Words, ROFF_ARGMAX };
1.7 kristaps 145: static const int roffarg_Ex[] = { ROFF_Std, ROFF_ARGMAX };
146: static const int roffarg_Rv[] = { ROFF_Std, ROFF_ARGMAX };
147: static const int roffarg_Bl[] = { ROFF_Bullet, ROFF_Dash,
148: ROFF_Hyphen, ROFF_Item, ROFF_Enum, ROFF_Tag, ROFF_Diag,
149: ROFF_Hang, ROFF_Ohang, ROFF_Inset, ROFF_Column, ROFF_Offset,
1.12 kristaps 150: ROFF_Width, ROFF_Compact, ROFF_ARGMAX };
1.7 kristaps 151: static const int roffarg_St[] = {
152: ROFF_p1003_1_88, ROFF_p1003_1_90, ROFF_p1003_1_96,
153: ROFF_p1003_1_2001, ROFF_p1003_1_2004, ROFF_p1003_1,
154: ROFF_p1003_1b, ROFF_p1003_1b_93, ROFF_p1003_1c_95,
155: ROFF_p1003_1g_2000, ROFF_p1003_2_92, ROFF_p1387_2_95,
156: ROFF_p1003_2, ROFF_p1387_2, ROFF_isoC_90, ROFF_isoC_amd1,
157: ROFF_isoC_tcor1, ROFF_isoC_tcor2, ROFF_isoC_99, ROFF_ansiC,
158: ROFF_ansiC_89, ROFF_ansiC_99, ROFF_ieee754, ROFF_iso8802_3,
159: ROFF_xpg3, ROFF_xpg4, ROFF_xpg4_2, ROFF_xpg4_3, ROFF_xbd5,
160: ROFF_xcu5, ROFF_xsh5, ROFF_xns5, ROFF_xns5_2d2_0,
161: ROFF_xcurses4_2, ROFF_susv2, ROFF_susv3, ROFF_svid4,
162: ROFF_ARGMAX };
1.5 kristaps 163:
1.6 kristaps 164: static const int roffchild_Bl[] = { ROFF_It, ROFF_El, ROFF_MAX };
1.7 kristaps 165: static const int roffchild_Fo[] = { ROFF_Fa, ROFF_Fc, ROFF_MAX };
1.8 kristaps 166: static const int roffchild_Oo[] = { ROFF_Op, ROFF_Oc, ROFF_MAX };
1.9 kristaps 167: static const int roffchild_Rs[] = { ROFF_Re, ROFF__A, ROFF__B,
168: ROFF__D, ROFF__I, ROFF__J, ROFF__N, ROFF__O, ROFF__P,
169: ROFF__R, ROFF__T, ROFF__V, ROFF_MAX };
1.6 kristaps 170:
171: static const int roffparent_El[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.7 kristaps 172: static const int roffparent_Fc[] = { ROFF_Fo, ROFF_Fa, ROFF_MAX };
173: static const int roffparent_Oc[] = { ROFF_Oo, ROFF_Oc, ROFF_MAX };
1.8 kristaps 174: static const int roffparent_It[] = { ROFF_Bl, ROFF_It, ROFF_MAX };
1.9 kristaps 175: static const int roffparent_Re[] = { ROFF_Rs, ROFF_MAX };
1.1 kristaps 176:
1.5 kristaps 177: /* Table of all known tokens. */
1.12 kristaps 178: static const struct rofftok tokens[ROFF_MAX] =
179: {
1.10 kristaps 180: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
181: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
182: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
183: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 184: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
185: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
186: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 187: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
188: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 189: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 190: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 191: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 192: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 193: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 194: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
195: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
201: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
202: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 213: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 214: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 215: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 216: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 217: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
236: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 237: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.6 kristaps 239: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
241: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 242: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 246: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 247: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 251: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 252: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
253: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 254: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 261: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 262: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 263: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 264: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
265: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 266: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 268: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 269: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 271: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 272: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 273: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 274: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
275: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.7 kristaps 276: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 277: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.7 kristaps 278: { roff_layout, NULL, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 279: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 280: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 281: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 282: };
1.1 kristaps 283:
1.5 kristaps 284: /* Table of all known token arguments. */
1.12 kristaps 285: static const int tokenargs[ROFF_ARGMAX] =
286: {
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:
1.5 kristaps 304: const char *const toknamesp[ROFF_MAX] =
305: {
1.8 kristaps 306: "\\\"", "Dd", "Dt", "Os",
307: "Sh", "Ss", "Pp", "D1",
308: "Dl", "Bd", "Ed", "Bl",
309: "El", "It", "Ad", "An",
310: "Ar", "Cd", "Cm", "Dv",
311: "Er", "Ev", "Ex", "Fa",
312: "Fd", "Fl", "Fn", "Ft",
313: "Ic", "In", "Li", "Nd",
314: "Nm", "Op", "Ot", "Pa",
315: "Rv", "St", "Va", "Vt",
316: "Xr", "\%A", "\%B", "\%D",
317: "\%I", "\%J", "\%N", "\%O",
318: "\%P", "\%R", "\%T", "\%V",
319: "Ac", "Ao", "Aq", "At",
320: "Bc", "Bf", "Bo", "Bq",
321: "Bsx", "Bx", "Db", "Dc",
322: "Do", "Dq", "Ec", "Ef",
323: "Em", "Eo", "Fx", "Ms",
324: "No", "Ns", "Nx", "Ox",
325: "Pc", "Pf", "Po", "Pq",
326: "Qc", "Ql", "Qo", "Qq",
327: "Re", "Rs", "Sc", "So",
328: "Sq", "Sm", "Sx", "Sy",
329: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 330: "Fo", "Fc", "Oo", "Oc",
331: "Bk", "Ek",
1.5 kristaps 332: };
333:
334: const char *const tokargnamesp[ROFF_ARGMAX] =
335: {
1.9 kristaps 336: "split", "nosplit", "ragged",
337: "unfilled", "literal", "file",
338: "offset", "bullet", "dash",
339: "hyphen", "item", "enum",
340: "tag", "diag", "hang",
341: "ohang", "inset", "column",
342: "width", "compact", "std",
343: "p1003.1-88", "p1003.1-90", "p1003.1-96",
344: "p1003.1-2001", "p1003.1-2004", "p1003.1",
345: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
346: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
347: "p1003.2", "p1387.2", "isoC-90",
348: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
349: "isoC-99", "ansiC", "ansiC-89",
350: "ansiC-99", "ieee754", "iso8802-3",
351: "xpg3", "xpg4", "xpg4.2",
352: "xpg4.3", "xbd5", "xcu5",
353: "xsh5", "xns5", "xns5.2d2.0",
354: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 355: "svid4", "filled", "words",
1.5 kristaps 356: };
357:
1.12 kristaps 358:
1.5 kristaps 359: const char *const *toknames = toknamesp;
360: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 361:
1.1 kristaps 362:
363: int
364: roff_free(struct rofftree *tree, int flush)
365: {
366: int error;
367:
368: assert(tree->mbuf);
369: if ( ! flush)
370: tree->mbuf = NULL;
371:
372: /* LINTED */
373: while (tree->last)
374: if ( ! (*tokens[tree->last->tok].cb)
1.2 kristaps 375: (tree->last->tok, tree, NULL, ROFF_EXIT))
1.1 kristaps 376: /* Disallow flushing. */
377: tree->mbuf = NULL;
378:
379: error = tree->mbuf ? 0 : 1;
380:
381: if (tree->mbuf && (ROFF_PRELUDE & tree->state)) {
1.12 kristaps 382: /*roff_warn(tree, "prelude never finished");*/
1.1 kristaps 383: error = 1;
384: }
385:
386: free(tree);
387: return(error ? 0 : 1);
388: }
389:
390:
391: struct rofftree *
392: roff_alloc(const struct md_args *args, struct md_mbuf *out,
1.6 kristaps 393: const struct md_rbuf *in, const struct roffcb *cb)
1.1 kristaps 394: {
395: struct rofftree *tree;
396:
1.12 kristaps 397: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
398: err(1, "calloc");
1.1 kristaps 399:
400: tree->state = ROFF_PRELUDE;
401: tree->args = args;
402: tree->mbuf = out;
403: tree->rbuf = in;
1.6 kristaps 404: tree->cb = cb;
1.1 kristaps 405:
406: return(tree);
407: }
408:
409:
410: int
411: roff_engine(struct rofftree *tree, char *buf, size_t sz)
412: {
413:
1.12 kristaps 414: tree->cur = buf;
415:
1.1 kristaps 416: if (0 == sz) {
1.12 kristaps 417: roff_warn(tree, buf, "blank line");
1.1 kristaps 418: return(0);
419: } else if ('.' != *buf)
420: return(textparse(tree, buf, sz));
421:
422: return(roffparse(tree, buf, sz));
423: }
424:
425:
426: static int
427: textparse(const struct rofftree *tree, const char *buf, size_t sz)
428: {
429:
430: /* Print text. */
431: return(1);
432: }
433:
434:
435: static int
1.10 kristaps 436: roffargs(const struct rofftree *tree,
437: int tok, char *buf, char **argv)
1.1 kristaps 438: {
439: int i;
1.12 kristaps 440: char *p;
1.1 kristaps 441:
442: assert(tok >= 0 && tok < ROFF_MAX);
443: assert('.' == *buf);
444:
1.12 kristaps 445: p = buf;
446:
1.1 kristaps 447: /* LINTED */
448: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 449: if ('\"' == *buf) {
450: argv[i] = ++buf;
451: while (*buf && '\"' != *buf)
452: buf++;
453: if (0 == *buf) {
1.13 ! kristaps 454: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 455: "quote in argument "
456: "list for `%s'",
457: toknames[tok]);
1.10 kristaps 458: return(0);
459: }
460: } else {
461: argv[i] = buf++;
462: while (*buf && ! isspace(*buf))
463: buf++;
464: if (0 == *buf)
465: continue;
1.1 kristaps 466: }
467: *buf++ = 0;
468: while (*buf && isspace(*buf))
469: buf++;
470: }
471:
472: assert(i > 0);
1.10 kristaps 473: if (ROFF_MAXARG == i && *buf) {
1.13 ! kristaps 474: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 475: [tok]);
1.10 kristaps 476: return(0);
477: }
478:
479: argv[i] = NULL;
480: return(1);
1.1 kristaps 481: }
482:
483:
1.6 kristaps 484: /* XXX */
485: static int
486: roffscan(int tok, const int *tokv)
487: {
1.7 kristaps 488:
1.6 kristaps 489: if (NULL == tokv)
490: return(1);
491:
1.7 kristaps 492: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 493: if (tok == *tokv)
494: return(1);
495:
496: return(0);
497: }
498:
499:
1.1 kristaps 500: static int
501: roffparse(struct rofftree *tree, char *buf, size_t sz)
502: {
503: int tok, t;
1.6 kristaps 504: struct roffnode *n;
1.1 kristaps 505: char *argv[ROFF_MAXARG];
506: const char **argvp;
507:
508: assert(sz > 0);
509:
1.6 kristaps 510: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 511: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 512: return(0);
513: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 514: roff_err(tree, buf + 1, "unsupported macro `%s'",
515: toknames[tok]);
1.1 kristaps 516: return(0);
1.6 kristaps 517: } else if (ROFF_COMMENT == tokens[tok].type)
518: return(1);
1.5 kristaps 519:
1.10 kristaps 520: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 521: return(0);
1.12 kristaps 522:
523: argvp = (const char **)argv;
1.6 kristaps 524:
525: /*
1.12 kristaps 526: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 527: */
1.1 kristaps 528:
1.6 kristaps 529: if (ROFF_PRELUDE & tree->state) {
530: assert(NULL == tree->last);
531: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
532: } else
533: assert(tree->last);
534:
535: assert(ROFF_BODY & tree->state);
536:
537: /*
538: * First check that our possible parents and parent's possible
539: * children are satisfied.
540: */
541:
542: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
543: warnx("%s: invalid parent `%s' for `%s' (line %zu)",
544: tree->rbuf->name,
545: toknames[tree->last->tok],
546: toknames[tok], tree->rbuf->line);
547: return(0);
548: }
549:
550: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
551: warnx("%s: invalid child `%s' for `%s' (line %zu)",
1.4 kristaps 552: tree->rbuf->name, toknames[tok],
1.6 kristaps 553: toknames[tree->last->tok],
1.1 kristaps 554: tree->rbuf->line);
555: return(0);
556: }
557:
558: /*
1.6 kristaps 559: * Branch if we're not a layout token.
1.1 kristaps 560: */
561:
1.6 kristaps 562: if (ROFF_LAYOUT != tokens[tok].type)
563: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 564:
1.6 kristaps 565: /*
566: * Check our scope rules.
567: */
1.1 kristaps 568:
1.6 kristaps 569: if (0 == tokens[tok].ctx)
570: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 571:
1.12 kristaps 572: /*
573: * First consider implicit-end tags, like as follows:
574: * .Sh SECTION 1
575: * .Sh SECTION 2
576: * In this, we want to close the scope of the NAME section. If
577: * there's an intermediary implicit-end tag, such as
578: * .Sh SECTION 1
579: * .Ss Subsection 1
580: * .Sh SECTION 2
581: * then it must be closed as well.
582: */
583:
1.6 kristaps 584: if (tok == tokens[tok].ctx) {
1.12 kristaps 585: /*
586: * First search up to the point where we must close.
587: * If one doesn't exist, then we can open a new scope.
588: */
589:
1.6 kristaps 590: for (n = tree->last; n; n = n->parent) {
591: assert(0 == tokens[n->tok].ctx ||
592: n->tok == tokens[n->tok].ctx);
593: if (n->tok == tok)
594: break;
1.10 kristaps 595: if (ROFF_SHALLOW & tokens[tok].flags) {
596: n = NULL;
597: break;
598: }
1.6 kristaps 599: }
1.10 kristaps 600:
601: /*
602: * Create a new scope, as no previous one exists to
603: * close out.
604: */
1.12 kristaps 605:
606: if (NULL == n)
1.6 kristaps 607: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 608:
609: /*
1.12 kristaps 610: * Close out all intermediary scoped blocks, then hang
611: * the current scope from our predecessor's parent.
1.10 kristaps 612: */
613:
1.1 kristaps 614: do {
615: t = tree->last->tok;
1.6 kristaps 616: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 617: return(0);
618: } while (t != tok);
1.6 kristaps 619:
620: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 621: }
622:
1.12 kristaps 623: /*
624: * Now consider explicit-end tags, where we want to close back
625: * to a specific tag. Example:
626: * .Bl
627: * .It Item.
628: * .El
629: * In this, the `El' tag closes out the scope of `Bl'.
630: */
631:
1.9 kristaps 632: assert(tree->last);
1.6 kristaps 633: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
634:
635: do {
636: t = tree->last->tok;
637: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
638: return(0);
639: } while (t != tokens[tok].ctx);
1.1 kristaps 640:
1.9 kristaps 641: assert(tree->last);
642: return(1);
1.1 kristaps 643: }
644:
645:
646: static int
647: rofffindarg(const char *name)
648: {
649: size_t i;
650:
651: /* FIXME: use a table, this is slow but ok for now. */
652:
653: /* LINTED */
654: for (i = 0; i < ROFF_ARGMAX; i++)
655: /* LINTED */
1.4 kristaps 656: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 657: return((int)i);
658:
659: return(ROFF_ARGMAX);
660: }
661:
662:
663: static int
1.6 kristaps 664: rofffindtok(const char *buf)
1.1 kristaps 665: {
1.6 kristaps 666: char token[4];
1.1 kristaps 667: size_t i;
668:
1.6 kristaps 669: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
670: token[i] = *buf;
671:
1.9 kristaps 672: if (i == 3)
1.6 kristaps 673: return(ROFF_MAX);
674:
675: token[i] = 0;
676:
1.1 kristaps 677: /* FIXME: use a table, this is slow but ok for now. */
678:
679: /* LINTED */
680: for (i = 0; i < ROFF_MAX; i++)
681: /* LINTED */
1.12 kristaps 682: if (0 == strcmp(toknames[i], token))
1.1 kristaps 683: return((int)i);
1.7 kristaps 684:
1.1 kristaps 685: return(ROFF_MAX);
686: }
687:
688:
1.2 kristaps 689: static int
690: rofffindcallable(const char *name)
691: {
692: int c;
693:
694: if (ROFF_MAX == (c = rofffindtok(name)))
695: return(ROFF_MAX);
1.8 kristaps 696: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 697: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
698: }
699:
700:
1.1 kristaps 701: static struct roffnode *
1.4 kristaps 702: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 703: {
704: struct roffnode *p;
705:
1.12 kristaps 706: if (NULL == (p = malloc(sizeof(struct roffnode))))
707: err(1, "malloc");
1.1 kristaps 708:
1.4 kristaps 709: p->line = tree->rbuf->line;
1.1 kristaps 710: p->tok = tokid;
711: p->parent = tree->last;
712: tree->last = p;
1.9 kristaps 713:
1.1 kristaps 714: return(p);
715: }
716:
717:
1.5 kristaps 718: static int
719: roffargok(int tokid, int argid)
720: {
721: const int *c;
722:
723: if (NULL == (c = tokens[tokid].args))
724: return(0);
725:
726: for ( ; ROFF_ARGMAX != *c; c++)
727: if (argid == *c)
728: return(1);
729:
730: return(0);
731: }
732:
733:
1.1 kristaps 734: static void
735: roffnode_free(int tokid, struct rofftree *tree)
736: {
737: struct roffnode *p;
738:
739: assert(tree->last);
740: assert(tree->last->tok == tokid);
741:
742: p = tree->last;
743: tree->last = tree->last->parent;
744: free(p);
745: }
746:
747:
1.6 kristaps 748: static int
1.12 kristaps 749: roffnextopt(const struct rofftree *tree, int tok,
750: const char ***in, char **val)
1.6 kristaps 751: {
752: const char *arg, **argv;
753: int v;
754:
755: *val = NULL;
756: argv = *in;
757: assert(argv);
758:
759: if (NULL == (arg = *argv))
760: return(-1);
761: if ('-' != *arg)
762: return(-1);
763:
1.12 kristaps 764: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
765: roff_warn(tree, arg, "argument-like parameter `%s' to "
766: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 767: return(-1);
1.12 kristaps 768: }
769:
770: if ( ! roffargok(tok, v)) {
771: roff_warn(tree, arg, "invalid argument parameter `%s' to "
772: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 773: return(-1);
1.12 kristaps 774: }
775:
776: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 777: return(v);
778:
779: *in = ++argv;
780:
1.12 kristaps 781: if (NULL == *argv) {
782: roff_err(tree, arg, "empty value of `%s' for `%s'",
783: tokargnames[v], toknames[tok]);
784: return(ROFF_ARGMAX);
785: }
1.6 kristaps 786:
1.12 kristaps 787: return(v);
1.6 kristaps 788: }
789:
790:
1.1 kristaps 791: /* ARGSUSED */
792: static int
793: roff_Dd(ROFFCALL_ARGS)
794: {
795:
1.4 kristaps 796: if (ROFF_BODY & tree->state) {
797: assert( ! (ROFF_PRELUDE & tree->state));
798: assert(ROFF_PRELUDE_Dd & tree->state);
799: return(roff_text(tok, tree, argv, type));
800: }
801:
1.1 kristaps 802: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 803: assert( ! (ROFF_BODY & tree->state));
804:
1.6 kristaps 805: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 806: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 807: return(0);
808: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 809: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 810: return(0);
811: }
812:
1.4 kristaps 813: /* TODO: parse date. */
814:
1.1 kristaps 815: assert(NULL == tree->last);
816: tree->state |= ROFF_PRELUDE_Dd;
817:
818: return(1);
819: }
820:
821:
822: /* ARGSUSED */
823: static int
824: roff_Dt(ROFFCALL_ARGS)
825: {
826:
1.4 kristaps 827: if (ROFF_BODY & tree->state) {
828: assert( ! (ROFF_PRELUDE & tree->state));
829: assert(ROFF_PRELUDE_Dt & tree->state);
830: return(roff_text(tok, tree, argv, type));
831: }
832:
1.1 kristaps 833: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 834: assert( ! (ROFF_BODY & tree->state));
835:
1.6 kristaps 836: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 837: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 838: return(0);
1.6 kristaps 839: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 840: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 841: return(0);
1.1 kristaps 842: }
843:
1.4 kristaps 844: /* TODO: parse date. */
845:
1.1 kristaps 846: assert(NULL == tree->last);
847: tree->state |= ROFF_PRELUDE_Dt;
848:
849: return(1);
850: }
851:
852:
853: /* ARGSUSED */
854: static int
855: roff_Os(ROFFCALL_ARGS)
856: {
857:
858: if (ROFF_EXIT == type) {
1.4 kristaps 859: assert(ROFF_PRELUDE_Os & tree->state);
860: return(roff_layout(tok, tree, argv, type));
861: } else if (ROFF_BODY & tree->state) {
862: assert( ! (ROFF_PRELUDE & tree->state));
863: assert(ROFF_PRELUDE_Os & tree->state);
864: return(roff_text(tok, tree, argv, type));
865: }
1.1 kristaps 866:
867: assert(ROFF_PRELUDE & tree->state);
868: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
869: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 870: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 871: return(0);
872: }
873:
1.4 kristaps 874: /* TODO: extract OS. */
1.1 kristaps 875:
876: tree->state |= ROFF_PRELUDE_Os;
877: tree->state &= ~ROFF_PRELUDE;
878: tree->state |= ROFF_BODY;
879:
1.4 kristaps 880: assert(NULL == tree->last);
881:
882: return(roff_layout(tok, tree, argv, type));
1.1 kristaps 883: }
884:
885:
886: /* ARGSUSED */
887: static int
1.2 kristaps 888: roff_layout(ROFFCALL_ARGS)
1.1 kristaps 889: {
1.2 kristaps 890: int i, c, argcp[ROFF_MAXARG];
891: char *v, *argvp[ROFF_MAXARG];
1.1 kristaps 892:
1.4 kristaps 893: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 894: roff_err(tree, *argv, "`%s' disallowed in prelude",
895: toknames[tok]);
1.4 kristaps 896: return(0);
897: }
898:
1.2 kristaps 899: if (ROFF_EXIT == type) {
900: roffnode_free(tok, tree);
1.13 ! kristaps 901: return((*tree->cb->roffblkout)(tree->args, tok));
1.2 kristaps 902: }
1.1 kristaps 903:
1.2 kristaps 904: i = 0;
1.12 kristaps 905: argv++;
1.5 kristaps 906:
1.12 kristaps 907: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
908: if (ROFF_ARGMAX == c)
1.5 kristaps 909: return(0);
1.12 kristaps 910:
1.2 kristaps 911: argcp[i] = c;
912: argvp[i] = v;
1.5 kristaps 913: i++;
1.1 kristaps 914: argv++;
915: }
916:
1.5 kristaps 917: argcp[i] = ROFF_ARGMAX;
918: argvp[i] = NULL;
919:
1.4 kristaps 920: if (NULL == roffnode_new(tok, tree))
1.2 kristaps 921: return(0);
922:
1.13 ! kristaps 923: if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp))
1.2 kristaps 924: return(0);
925:
926: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.12 kristaps 927:
1.2 kristaps 928: /* TODO: print all tokens. */
929:
1.13 ! kristaps 930: if ( ! ((*tree->cb->roffout)(tree->args, tok)))
1.2 kristaps 931: return(0);
1.13 ! kristaps 932: return((*tree->cb->roffblkin)(tree->args, tok));
1.2 kristaps 933: }
934:
1.1 kristaps 935: while (*argv) {
1.8 kristaps 936: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
937: if (NULL == tokens[c].cb) {
1.12 kristaps 938: roff_err(tree, *argv, "unsupported "
939: "macro `%s'",
940: toknames[c]);
1.8 kristaps 941: return(0);
942: }
1.2 kristaps 943: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 944: argv, ROFF_ENTER))
1.2 kristaps 945: return(0);
1.8 kristaps 946: }
1.12 kristaps 947:
1.2 kristaps 948: /* TODO: print token. */
1.12 kristaps 949:
1.2 kristaps 950: argv++;
951: }
952:
1.13 ! kristaps 953: if ( ! ((*tree->cb->roffout)(tree->args, tok)))
1.2 kristaps 954: return(0);
955:
1.13 ! kristaps 956: return((*tree->cb->roffblkin)(tree->args, tok));
1.2 kristaps 957: }
958:
959:
960: /* ARGSUSED */
961: static int
962: roff_text(ROFFCALL_ARGS)
963: {
964: int i, c, argcp[ROFF_MAXARG];
965: char *v, *argvp[ROFF_MAXARG];
966:
1.4 kristaps 967: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 968: roff_err(tree, *argv, "`%s' disallowed in prelude",
969: toknames[tok]);
1.4 kristaps 970: return(0);
971: }
972:
1.2 kristaps 973: i = 0;
1.12 kristaps 974: argv++;
1.5 kristaps 975:
1.12 kristaps 976: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
977: if (ROFF_ARGMAX == c)
1.2 kristaps 978: return(0);
1.12 kristaps 979:
1.2 kristaps 980: argcp[i] = c;
981: argvp[i] = v;
1.5 kristaps 982: i++;
1.1 kristaps 983: argv++;
984: }
985:
1.5 kristaps 986: argcp[i] = ROFF_ARGMAX;
987: argvp[i] = NULL;
988:
1.13 ! kristaps 989: if ( ! (*tree->cb->roffin)(tree->args, tok, argcp, argvp))
1.2 kristaps 990: return(0);
1.1 kristaps 991:
1.2 kristaps 992: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.12 kristaps 993:
1.2 kristaps 994: /* TODO: print all tokens. */
1.12 kristaps 995:
1.13 ! kristaps 996: return((*tree->cb->roffout)(tree->args, tok));
1.2 kristaps 997: }
1.1 kristaps 998:
1.2 kristaps 999: while (*argv) {
1.8 kristaps 1000: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1001: if (NULL == tokens[c].cb) {
1.12 kristaps 1002: roff_err(tree, *argv, "unsupported "
1003: "macro `%s'",
1004: toknames[c]);
1.8 kristaps 1005: return(0);
1006: }
1.2 kristaps 1007: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1008: argv, ROFF_ENTER))
1.2 kristaps 1009: return(0);
1.8 kristaps 1010: }
1.12 kristaps 1011:
1.2 kristaps 1012: /* TODO: print token. */
1.12 kristaps 1013:
1.2 kristaps 1014: argv++;
1015: }
1016:
1.13 ! kristaps 1017: return((*tree->cb->roffout)(tree->args, tok));
1.6 kristaps 1018: }
1019:
1020:
1.9 kristaps 1021: /* ARGSUSED */
1.6 kristaps 1022: static int
1023: roff_comment(ROFFCALL_ARGS)
1024: {
1025:
1026: return(1);
1.1 kristaps 1027: }
1.9 kristaps 1028:
1029:
1030: /* ARGSUSED */
1031: static int
1032: roff_close(ROFFCALL_ARGS)
1033: {
1034:
1035: return(1);
1036: }
1.11 kristaps 1037:
1038:
1039: /* ARGSUSED */
1040: static int
1041: roff_special(ROFFCALL_ARGS)
1042: {
1043:
1044: return((*tree->cb->roffspecial)(tok));
1045: }
1.12 kristaps 1046:
1047:
1048: static void
1049: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1050: {
1051: va_list ap;
1052: char buf[128];
1053:
1054: va_start(ap, fmt);
1055: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1056: va_end(ap);
1057:
1058: (*tree->cb->roffmsg)(tree->args, ROFF_WARN, tree->cur, pos,
1059: tree->rbuf->name, tree->rbuf->line, buf);
1060: }
1061:
1062:
1063: static void
1064: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1065: {
1066: va_list ap;
1067: char buf[128];
1068:
1069: va_start(ap, fmt);
1070: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1071: va_end(ap);
1072:
1073: (*tree->cb->roffmsg)(tree->args, ROFF_ERROR, tree->cur, pos,
1074: tree->rbuf->name, tree->rbuf->line, buf);
1075: }
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