Annotation of mandoc/roff.c, Revision 1.18
1.18 ! kristaps 1: /* $Id: roff.c,v 1.17 2008/11/29 14:14:21 kristaps Exp $ */
1.1 kristaps 2: /*
3: * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
4: *
5: * Permission to use, copy, modify, and distribute this software for any
6: * purpose with or without fee is hereby granted, provided that the
7: * above copyright notice and this permission notice appear in all
8: * copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
11: * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
12: * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
13: * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
14: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
15: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
16: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
19: #include <assert.h>
20: #include <ctype.h>
21: #include <err.h>
1.12 kristaps 22: #include <stdarg.h>
1.1 kristaps 23: #include <stdlib.h>
24: #include <stdio.h>
25: #include <string.h>
26: #include <time.h>
27:
28: #include "libmdocml.h"
29: #include "private.h"
30:
1.6 kristaps 31: /* FIXME: warn if Pp occurs before/after Sh etc. (see mdoc.samples). */
32:
1.7 kristaps 33: /* FIXME: warn about "X section only" macros. */
34:
1.6 kristaps 35: /* FIXME: warn about empty lists. */
36:
1.7 kristaps 37: /* FIXME: ; : } ) (etc.) after text macros? */
38:
1.11 kristaps 39: /* FIXME: NAME section needs specific elements. */
40:
1.18 ! kristaps 41: /* FIXME: don't print Os, just do roffbegin. */
! 42:
1.11 kristaps 43: #define ROFF_MAXARG 32
1.1 kristaps 44:
45: enum roffd {
46: ROFF_ENTER = 0,
47: ROFF_EXIT
48: };
49:
50: enum rofftype {
51: ROFF_COMMENT,
52: ROFF_TEXT,
1.11 kristaps 53: ROFF_LAYOUT,
54: ROFF_SPECIAL
1.1 kristaps 55: };
56:
57: #define ROFFCALL_ARGS \
1.2 kristaps 58: int tok, struct rofftree *tree, \
1.18 ! kristaps 59: char *argv[], enum roffd type
1.1 kristaps 60:
61: struct rofftree;
62:
63: struct rofftok {
1.5 kristaps 64: int (*cb)(ROFFCALL_ARGS); /* Callback. */
65: const int *args; /* Args (or NULL). */
1.6 kristaps 66: const int *parents;
67: const int *children;
68: int ctx;
1.5 kristaps 69: enum rofftype type; /* Type of macro. */
1.1 kristaps 70: int flags;
1.7 kristaps 71: #define ROFF_PARSED (1 << 0) /* "Parsed". */
72: #define ROFF_CALLABLE (1 << 1) /* "Callable". */
73: #define ROFF_QUOTES (1 << 2) /* Quoted args. */
1.10 kristaps 74: #define ROFF_SHALLOW (1 << 3) /* Nesting block. */
1.1 kristaps 75: };
76:
77: struct roffarg {
78: int flags;
1.5 kristaps 79: #define ROFF_VALUE (1 << 0) /* Has a value. */
1.1 kristaps 80: };
81:
82: struct roffnode {
1.5 kristaps 83: int tok; /* Token id. */
84: struct roffnode *parent; /* Parent (or NULL). */
1.1 kristaps 85: };
86:
87: struct rofftree {
1.5 kristaps 88: struct roffnode *last; /* Last parsed node. */
1.14 kristaps 89: char *cur;
90:
1.5 kristaps 91: time_t date; /* `Dd' results. */
92: char os[64]; /* `Os' results. */
93: char title[64]; /* `Dt' results. */
94: char section[64]; /* `Dt' results. */
95: char volume[64]; /* `Dt' results. */
1.14 kristaps 96:
1.1 kristaps 97: int state;
1.5 kristaps 98: #define ROFF_PRELUDE (1 << 1) /* In roff prelude. */
99: #define ROFF_PRELUDE_Os (1 << 2) /* `Os' is parsed. */
100: #define ROFF_PRELUDE_Dt (1 << 3) /* `Dt' is parsed. */
101: #define ROFF_PRELUDE_Dd (1 << 4) /* `Dd' is parsed. */
102: #define ROFF_BODY (1 << 5) /* In roff body. */
1.14 kristaps 103:
1.15 kristaps 104: struct roffcb cb;
105: void *arg;
1.1 kristaps 106: };
107:
108: static int roff_Dd(ROFFCALL_ARGS);
109: static int roff_Dt(ROFFCALL_ARGS);
110: static int roff_Os(ROFFCALL_ARGS);
1.6 kristaps 111:
1.2 kristaps 112: static int roff_layout(ROFFCALL_ARGS);
113: static int roff_text(ROFFCALL_ARGS);
1.6 kristaps 114: static int roff_comment(ROFFCALL_ARGS);
1.9 kristaps 115: static int roff_close(ROFFCALL_ARGS);
1.11 kristaps 116: static int roff_special(ROFFCALL_ARGS);
1.1 kristaps 117:
1.4 kristaps 118: static struct roffnode *roffnode_new(int, struct rofftree *);
1.15 kristaps 119: static void roffnode_free(struct rofftree *);
1.1 kristaps 120:
1.12 kristaps 121: static void roff_warn(const struct rofftree *,
122: const char *, char *, ...);
123: static void roff_err(const struct rofftree *,
124: const char *, char *, ...);
125:
1.7 kristaps 126: static int roffscan(int, const int *);
1.1 kristaps 127: static int rofffindtok(const char *);
128: static int rofffindarg(const char *);
1.2 kristaps 129: static int rofffindcallable(const char *);
1.10 kristaps 130: static int roffargs(const struct rofftree *,
131: int, char *, char **);
1.5 kristaps 132: static int roffargok(int, int);
1.12 kristaps 133: static int roffnextopt(const struct rofftree *,
1.18 ! kristaps 134: int, char ***, char **);
1.17 kristaps 135: static int roffparse(struct rofftree *, char *);
136: static int textparse(const struct rofftree *, char *);
1.1 kristaps 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. */
1.14 kristaps 178: static const struct rofftok tokens[ROFF_MAX] = {
1.10 kristaps 179: {roff_comment, NULL, NULL, NULL, 0, ROFF_COMMENT, 0 }, /* \" */
180: { roff_Dd, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dd */
181: { roff_Dt, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Dt */
182: { roff_Os, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Os */
1.6 kristaps 183: { roff_layout, NULL, NULL, NULL, ROFF_Sh, ROFF_LAYOUT, ROFF_PARSED }, /* Sh */
184: { roff_layout, NULL, NULL, NULL, ROFF_Ss, ROFF_LAYOUT, ROFF_PARSED }, /* Ss */
185: { roff_text, NULL, NULL, NULL, ROFF_Pp, ROFF_TEXT, 0 }, /* Pp */
1.8 kristaps 186: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* D1 */
187: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Dl */
1.12 kristaps 188: { roff_layout, roffarg_Bd, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bd */
1.9 kristaps 189: { roff_close, NULL, NULL, NULL, ROFF_Bd, ROFF_LAYOUT, 0 }, /* Ed */
1.7 kristaps 190: { roff_layout, roffarg_Bl, NULL, roffchild_Bl, 0, ROFF_LAYOUT, 0 }, /* Bl */
1.9 kristaps 191: { roff_close, NULL, roffparent_El, NULL, ROFF_Bl, ROFF_LAYOUT, 0 }, /* El */
1.10 kristaps 192: { roff_layout, NULL, roffparent_It, NULL, ROFF_It, ROFF_LAYOUT, ROFF_SHALLOW }, /* It */
1.7 kristaps 193: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ad */
194: { roff_text, roffarg_An, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* An */
195: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ar */
196: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Cd */ /* XXX man.4 only */
197: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Cm */
198: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dv */ /* XXX needs arg */
199: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Er */ /* XXX needs arg */
200: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ev */ /* XXX needs arg */
201: { roff_text, roffarg_Ex, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ex */
202: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fa */ /* XXX needs arg */
1.10 kristaps 203: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Fd */
1.7 kristaps 204: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fl */
205: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Fn */ /* XXX needs arg */ /* FIXME */
206: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ft */
207: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ic */ /* XXX needs arg */
1.10 kristaps 208: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* In */
1.7 kristaps 209: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Li */
1.10 kristaps 210: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_QUOTES }, /* Nd */
1.8 kristaps 211: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Nm */ /* FIXME */
1.7 kristaps 212: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Op */
1.8 kristaps 213: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ot */ /* XXX deprecated */
1.7 kristaps 214: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pa */
1.10 kristaps 215: { roff_text, roffarg_Rv, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Rv */
1.7 kristaps 216: { roff_text, roffarg_St, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* St */
217: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Va */
218: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Vt */ /* XXX needs arg */
219: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xr */ /* XXX needs arg */
1.9 kristaps 220: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %A */
221: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %B */
1.10 kristaps 222: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %D */
1.9 kristaps 223: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %I */
224: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE}, /* %J */
1.10 kristaps 225: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %N */
226: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %O */
227: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %P */
228: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %R */
1.9 kristaps 229: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* %T */
1.10 kristaps 230: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* %V */
231: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ac */
232: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ao */
1.9 kristaps 233: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Aq */
1.10 kristaps 234: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* At */ /* XXX at most 2 args */
235: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bc */
1.7 kristaps 236: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Bf */ /* FIXME */
1.10 kristaps 237: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bo */
1.18 ! kristaps 238: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Bq */
1.7 kristaps 239: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bsx */
240: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Bx */
1.11 kristaps 241: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Db */
1.10 kristaps 242: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dc */
243: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Do */
1.8 kristaps 244: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Dq */
1.10 kristaps 245: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ec */
1.7 kristaps 246: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, 0 }, /* Ef */ /* FIXME */
247: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Em */ /* XXX needs arg */
1.10 kristaps 248: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Eo */
1.7 kristaps 249: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Fx */
1.9 kristaps 250: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ms */
1.6 kristaps 251: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* No */
252: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ns */
1.7 kristaps 253: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Nx */
254: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ox */
1.10 kristaps 255: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pc */
1.8 kristaps 256: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Pf */
1.10 kristaps 257: { roff_text, NULL, NULL, NULL, 0, ROFF_LAYOUT, ROFF_PARSED | ROFF_CALLABLE }, /* Po */
1.8 kristaps 258: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Pq */
1.10 kristaps 259: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qc */
1.8 kristaps 260: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Ql */
1.10 kristaps 261: { roff_layout, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qo */
1.8 kristaps 262: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Qq */
1.9 kristaps 263: { roff_close, NULL, roffparent_Re, NULL, ROFF_Rs, ROFF_LAYOUT, 0 }, /* Re */
264: { roff_layout, NULL, NULL, roffchild_Rs, 0, ROFF_LAYOUT, 0 }, /* Rs */
1.10 kristaps 265: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sc */
266: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* So */
1.8 kristaps 267: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sq */
1.11 kristaps 268: {roff_special, NULL, NULL, NULL, 0, ROFF_SPECIAL, 0 }, /* Sm */
1.8 kristaps 269: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sx */
1.10 kristaps 270: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Sy */
1.8 kristaps 271: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Tn */
1.7 kristaps 272: { roff_text, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED }, /* Ux */
1.6 kristaps 273: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xc */
274: { NULL, NULL, NULL, NULL, 0, ROFF_TEXT, ROFF_PARSED | ROFF_CALLABLE }, /* Xo */
1.14 kristaps 275: { roff_layout, NULL, NULL, roffchild_Fo, 0, ROFF_LAYOUT, 0 }, /* Fo */
1.9 kristaps 276: { roff_close, NULL, roffparent_Fc, NULL, ROFF_Fo, ROFF_LAYOUT, 0 }, /* Fc */
1.14 kristaps 277: { roff_layout, NULL, NULL, roffchild_Oo, 0, ROFF_LAYOUT, 0 }, /* Oo */
1.9 kristaps 278: { roff_close, NULL, roffparent_Oc, NULL, ROFF_Oo, ROFF_LAYOUT, 0 }, /* Oc */
1.12 kristaps 279: { roff_layout, roffarg_Bk, NULL, NULL, 0, ROFF_LAYOUT, 0 }, /* Bk */
1.9 kristaps 280: { roff_close, NULL, NULL, NULL, ROFF_Bk, ROFF_LAYOUT, 0 }, /* Ek */
1.12 kristaps 281: };
1.1 kristaps 282:
1.5 kristaps 283: /* Table of all known token arguments. */
1.14 kristaps 284: static const int tokenargs[ROFF_ARGMAX] = {
1.12 kristaps 285: 0, 0, 0, 0,
286: 0, ROFF_VALUE, ROFF_VALUE, 0,
287: 0, 0, 0, 0,
288: 0, 0, 0, 0,
1.18 ! kristaps 289: 0, 0, ROFF_VALUE, 0,
1.12 kristaps 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: };
1.1 kristaps 301:
1.14 kristaps 302: const char *const toknamesp[ROFF_MAX] = {
1.8 kristaps 303: "\\\"", "Dd", "Dt", "Os",
304: "Sh", "Ss", "Pp", "D1",
305: "Dl", "Bd", "Ed", "Bl",
306: "El", "It", "Ad", "An",
307: "Ar", "Cd", "Cm", "Dv",
308: "Er", "Ev", "Ex", "Fa",
309: "Fd", "Fl", "Fn", "Ft",
310: "Ic", "In", "Li", "Nd",
311: "Nm", "Op", "Ot", "Pa",
312: "Rv", "St", "Va", "Vt",
313: "Xr", "\%A", "\%B", "\%D",
314: "\%I", "\%J", "\%N", "\%O",
315: "\%P", "\%R", "\%T", "\%V",
316: "Ac", "Ao", "Aq", "At",
317: "Bc", "Bf", "Bo", "Bq",
318: "Bsx", "Bx", "Db", "Dc",
319: "Do", "Dq", "Ec", "Ef",
320: "Em", "Eo", "Fx", "Ms",
321: "No", "Ns", "Nx", "Ox",
322: "Pc", "Pf", "Po", "Pq",
323: "Qc", "Ql", "Qo", "Qq",
324: "Re", "Rs", "Sc", "So",
325: "Sq", "Sm", "Sx", "Sy",
326: "Tn", "Ux", "Xc", "Xo",
1.9 kristaps 327: "Fo", "Fc", "Oo", "Oc",
328: "Bk", "Ek",
1.5 kristaps 329: };
330:
1.14 kristaps 331: const char *const tokargnamesp[ROFF_ARGMAX] = {
1.9 kristaps 332: "split", "nosplit", "ragged",
333: "unfilled", "literal", "file",
334: "offset", "bullet", "dash",
335: "hyphen", "item", "enum",
336: "tag", "diag", "hang",
337: "ohang", "inset", "column",
338: "width", "compact", "std",
339: "p1003.1-88", "p1003.1-90", "p1003.1-96",
340: "p1003.1-2001", "p1003.1-2004", "p1003.1",
341: "p1003.1b", "p1003.1b-93", "p1003.1c-95",
342: "p1003.1g-2000", "p1003.2-92", "p1387.2-95",
343: "p1003.2", "p1387.2", "isoC-90",
344: "isoC-amd1", "isoC-tcor1", "isoC-tcor2",
345: "isoC-99", "ansiC", "ansiC-89",
346: "ansiC-99", "ieee754", "iso8802-3",
347: "xpg3", "xpg4", "xpg4.2",
348: "xpg4.3", "xbd5", "xcu5",
349: "xsh5", "xns5", "xns5.2d2.0",
350: "xcurses4.2", "susv2", "susv3",
1.12 kristaps 351: "svid4", "filled", "words",
1.5 kristaps 352: };
353:
354: const char *const *toknames = toknamesp;
355: const char *const *tokargnames = tokargnamesp;
1.4 kristaps 356:
1.1 kristaps 357:
358: int
359: roff_free(struct rofftree *tree, int flush)
360: {
1.16 kristaps 361: int error, t;
1.15 kristaps 362: struct roffnode *n;
1.1 kristaps 363:
1.17 kristaps 364: error = 0;
365:
1.16 kristaps 366: if ( ! flush)
367: goto end;
1.1 kristaps 368:
1.16 kristaps 369: error = 1;
1.1 kristaps 370:
1.16 kristaps 371: if (ROFF_PRELUDE & tree->state) {
1.15 kristaps 372: roff_warn(tree, NULL, "prelude never finished");
1.16 kristaps 373: goto end;
374: }
375:
376: for (n = tree->last; n->parent; n = n->parent) {
377: if (0 != tokens[n->tok].ctx)
1.17 kristaps 378: continue;
1.16 kristaps 379: roff_warn(tree, NULL, "closing explicit scope `%s'",
380: toknames[n->tok]);
381: goto end;
382: }
383:
384: while (tree->last) {
385: t = tree->last->tok;
386: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
387: goto end;
1.1 kristaps 388: }
389:
1.16 kristaps 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);
1.17 kristaps 398:
1.1 kristaps 399: return(error ? 0 : 1);
400: }
401:
402:
403: struct rofftree *
1.15 kristaps 404: roff_alloc(const struct roffcb *cb, void *args)
1.1 kristaps 405: {
406: struct rofftree *tree;
407:
1.17 kristaps 408: assert(args);
409: assert(cb);
410:
1.12 kristaps 411: if (NULL == (tree = calloc(1, sizeof(struct rofftree))))
412: err(1, "calloc");
1.1 kristaps 413:
414: tree->state = ROFF_PRELUDE;
1.15 kristaps 415: tree->arg = args;
416:
417: (void)memcpy(&tree->cb, cb, sizeof(struct roffcb));
1.1 kristaps 418:
419: return(tree);
420: }
421:
422:
423: int
1.17 kristaps 424: roff_engine(struct rofftree *tree, char *buf)
1.1 kristaps 425: {
426:
1.17 kristaps 427: tree->cur = buf;
428: assert(buf);
1.12 kristaps 429:
1.17 kristaps 430: if (0 == *buf) {
1.12 kristaps 431: roff_warn(tree, buf, "blank line");
1.1 kristaps 432: return(0);
433: } else if ('.' != *buf)
1.17 kristaps 434: return(textparse(tree, buf));
1.1 kristaps 435:
1.17 kristaps 436: return(roffparse(tree, buf));
1.1 kristaps 437: }
438:
439:
440: static int
1.17 kristaps 441: textparse(const struct rofftree *tree, char *buf)
1.1 kristaps 442: {
1.17 kristaps 443:
444: return((*tree->cb.roffdata)(tree->arg, buf));
1.1 kristaps 445: }
446:
447:
448: static int
1.10 kristaps 449: roffargs(const struct rofftree *tree,
450: int tok, char *buf, char **argv)
1.1 kristaps 451: {
452: int i;
1.12 kristaps 453: char *p;
1.1 kristaps 454:
455: assert(tok >= 0 && tok < ROFF_MAX);
456: assert('.' == *buf);
457:
1.12 kristaps 458: p = buf;
459:
1.1 kristaps 460: /* LINTED */
461: for (i = 0; *buf && i < ROFF_MAXARG; i++) {
1.10 kristaps 462: if ('\"' == *buf) {
463: argv[i] = ++buf;
464: while (*buf && '\"' != *buf)
465: buf++;
466: if (0 == *buf) {
1.13 kristaps 467: roff_err(tree, argv[i], "unclosed "
1.12 kristaps 468: "quote in argument "
469: "list for `%s'",
470: toknames[tok]);
1.10 kristaps 471: return(0);
472: }
473: } else {
474: argv[i] = buf++;
475: while (*buf && ! isspace(*buf))
476: buf++;
477: if (0 == *buf)
478: continue;
1.1 kristaps 479: }
480: *buf++ = 0;
481: while (*buf && isspace(*buf))
482: buf++;
483: }
484:
485: assert(i > 0);
1.10 kristaps 486: if (ROFF_MAXARG == i && *buf) {
1.13 kristaps 487: roff_err(tree, p, "too many arguments for `%s'", toknames
1.12 kristaps 488: [tok]);
1.10 kristaps 489: return(0);
490: }
491:
492: argv[i] = NULL;
493: return(1);
1.1 kristaps 494: }
495:
496:
1.6 kristaps 497: /* XXX */
498: static int
499: roffscan(int tok, const int *tokv)
500: {
1.7 kristaps 501:
1.6 kristaps 502: if (NULL == tokv)
503: return(1);
504:
1.7 kristaps 505: for ( ; ROFF_MAX != *tokv; tokv++)
1.6 kristaps 506: if (tok == *tokv)
507: return(1);
508:
509: return(0);
510: }
511:
512:
1.1 kristaps 513: static int
1.17 kristaps 514: roffparse(struct rofftree *tree, char *buf)
1.1 kristaps 515: {
516: int tok, t;
1.6 kristaps 517: struct roffnode *n;
1.1 kristaps 518: char *argv[ROFF_MAXARG];
1.18 ! kristaps 519: char **argvp;
1.1 kristaps 520:
1.6 kristaps 521: if (ROFF_MAX == (tok = rofffindtok(buf + 1))) {
1.12 kristaps 522: roff_err(tree, buf + 1, "bogus line macro");
1.6 kristaps 523: return(0);
524: } else if (NULL == tokens[tok].cb) {
1.12 kristaps 525: roff_err(tree, buf + 1, "unsupported macro `%s'",
526: toknames[tok]);
1.1 kristaps 527: return(0);
1.6 kristaps 528: } else if (ROFF_COMMENT == tokens[tok].type)
529: return(1);
1.5 kristaps 530:
1.10 kristaps 531: if ( ! roffargs(tree, tok, buf, argv))
1.1 kristaps 532: return(0);
1.12 kristaps 533:
1.18 ! kristaps 534: argvp = (char **)argv;
1.6 kristaps 535:
536: /*
1.12 kristaps 537: * Prelude macros break some assumptions, so branch now.
1.6 kristaps 538: */
1.1 kristaps 539:
1.6 kristaps 540: if (ROFF_PRELUDE & tree->state) {
541: assert(NULL == tree->last);
542: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
543: } else
544: assert(tree->last);
545:
546: assert(ROFF_BODY & tree->state);
547:
548: /*
549: * First check that our possible parents and parent's possible
550: * children are satisfied.
551: */
552:
553: if ( ! roffscan(tree->last->tok, tokens[tok].parents)) {
1.15 kristaps 554: roff_err(tree, *argvp, "`%s' has invalid parent `%s'",
555: toknames[tok],
556: toknames[tree->last->tok]);
1.6 kristaps 557: return(0);
558: }
559:
560: if ( ! roffscan(tok, tokens[tree->last->tok].children)) {
1.18 ! kristaps 561: roff_err(tree, *argvp, "`%s' is invalid child of `%s'",
! 562: toknames[tok],
! 563: toknames[tree->last->tok]);
1.1 kristaps 564: return(0);
565: }
566:
567: /*
1.6 kristaps 568: * Branch if we're not a layout token.
1.1 kristaps 569: */
570:
1.6 kristaps 571: if (ROFF_LAYOUT != tokens[tok].type)
572: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 573:
1.6 kristaps 574: /*
575: * Check our scope rules.
576: */
1.1 kristaps 577:
1.6 kristaps 578: if (0 == tokens[tok].ctx)
579: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 580:
1.12 kristaps 581: /*
582: * First consider implicit-end tags, like as follows:
583: * .Sh SECTION 1
584: * .Sh SECTION 2
585: * In this, we want to close the scope of the NAME section. If
586: * there's an intermediary implicit-end tag, such as
587: * .Sh SECTION 1
588: * .Ss Subsection 1
589: * .Sh SECTION 2
590: * then it must be closed as well.
591: */
592:
1.6 kristaps 593: if (tok == tokens[tok].ctx) {
1.12 kristaps 594: /*
595: * First search up to the point where we must close.
596: * If one doesn't exist, then we can open a new scope.
597: */
598:
1.6 kristaps 599: for (n = tree->last; n; n = n->parent) {
600: assert(0 == tokens[n->tok].ctx ||
601: n->tok == tokens[n->tok].ctx);
602: if (n->tok == tok)
603: break;
1.10 kristaps 604: if (ROFF_SHALLOW & tokens[tok].flags) {
605: n = NULL;
606: break;
607: }
1.6 kristaps 608: }
1.10 kristaps 609:
610: /*
611: * Create a new scope, as no previous one exists to
612: * close out.
613: */
1.12 kristaps 614:
615: if (NULL == n)
1.6 kristaps 616: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.10 kristaps 617:
618: /*
1.12 kristaps 619: * Close out all intermediary scoped blocks, then hang
620: * the current scope from our predecessor's parent.
1.10 kristaps 621: */
622:
1.1 kristaps 623: do {
624: t = tree->last->tok;
1.6 kristaps 625: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
1.1 kristaps 626: return(0);
627: } while (t != tok);
1.6 kristaps 628:
629: return((*tokens[tok].cb)(tok, tree, argvp, ROFF_ENTER));
1.1 kristaps 630: }
631:
1.12 kristaps 632: /*
633: * Now consider explicit-end tags, where we want to close back
634: * to a specific tag. Example:
635: * .Bl
636: * .It Item.
637: * .El
638: * In this, the `El' tag closes out the scope of `Bl'.
639: */
640:
1.9 kristaps 641: assert(tree->last);
1.6 kristaps 642: assert(tok != tokens[tok].ctx && 0 != tokens[tok].ctx);
643:
1.14 kristaps 644: /* LINTED */
1.6 kristaps 645: do {
646: t = tree->last->tok;
647: if ( ! (*tokens[t].cb)(t, tree, NULL, ROFF_EXIT))
648: return(0);
649: } while (t != tokens[tok].ctx);
1.1 kristaps 650:
1.9 kristaps 651: assert(tree->last);
652: return(1);
1.1 kristaps 653: }
654:
655:
656: static int
657: rofffindarg(const char *name)
658: {
659: size_t i;
660:
661: /* FIXME: use a table, this is slow but ok for now. */
662:
663: /* LINTED */
664: for (i = 0; i < ROFF_ARGMAX; i++)
665: /* LINTED */
1.4 kristaps 666: if (0 == strcmp(name, tokargnames[i]))
1.1 kristaps 667: return((int)i);
668:
669: return(ROFF_ARGMAX);
670: }
671:
672:
673: static int
1.6 kristaps 674: rofffindtok(const char *buf)
1.1 kristaps 675: {
1.6 kristaps 676: char token[4];
1.1 kristaps 677: size_t i;
678:
1.6 kristaps 679: for (i = 0; *buf && ! isspace(*buf) && i < 3; i++, buf++)
680: token[i] = *buf;
681:
1.9 kristaps 682: if (i == 3)
1.6 kristaps 683: return(ROFF_MAX);
684:
685: token[i] = 0;
686:
1.1 kristaps 687: /* FIXME: use a table, this is slow but ok for now. */
688:
689: /* LINTED */
690: for (i = 0; i < ROFF_MAX; i++)
691: /* LINTED */
1.12 kristaps 692: if (0 == strcmp(toknames[i], token))
1.1 kristaps 693: return((int)i);
1.7 kristaps 694:
1.1 kristaps 695: return(ROFF_MAX);
696: }
697:
698:
1.2 kristaps 699: static int
700: rofffindcallable(const char *name)
701: {
702: int c;
703:
704: if (ROFF_MAX == (c = rofffindtok(name)))
705: return(ROFF_MAX);
1.8 kristaps 706: assert(c >= 0 && c < ROFF_MAX);
1.2 kristaps 707: return(ROFF_CALLABLE & tokens[c].flags ? c : ROFF_MAX);
708: }
709:
710:
1.1 kristaps 711: static struct roffnode *
1.4 kristaps 712: roffnode_new(int tokid, struct rofftree *tree)
1.1 kristaps 713: {
714: struct roffnode *p;
715:
1.12 kristaps 716: if (NULL == (p = malloc(sizeof(struct roffnode))))
717: err(1, "malloc");
1.1 kristaps 718:
719: p->tok = tokid;
720: p->parent = tree->last;
721: tree->last = p;
1.9 kristaps 722:
1.1 kristaps 723: return(p);
724: }
725:
726:
1.5 kristaps 727: static int
728: roffargok(int tokid, int argid)
729: {
730: const int *c;
731:
732: if (NULL == (c = tokens[tokid].args))
733: return(0);
734:
735: for ( ; ROFF_ARGMAX != *c; c++)
736: if (argid == *c)
737: return(1);
738:
739: return(0);
740: }
741:
742:
1.1 kristaps 743: static void
1.15 kristaps 744: roffnode_free(struct rofftree *tree)
1.1 kristaps 745: {
746: struct roffnode *p;
747:
748: assert(tree->last);
749:
750: p = tree->last;
751: tree->last = tree->last->parent;
752: free(p);
753: }
754:
755:
1.6 kristaps 756: static int
1.12 kristaps 757: roffnextopt(const struct rofftree *tree, int tok,
1.18 ! kristaps 758: char ***in, char **val)
1.6 kristaps 759: {
1.18 ! kristaps 760: char *arg, **argv;
1.6 kristaps 761: int v;
762:
763: *val = NULL;
764: argv = *in;
765: assert(argv);
766:
767: if (NULL == (arg = *argv))
768: return(-1);
769: if ('-' != *arg)
770: return(-1);
771:
1.12 kristaps 772: if (ROFF_ARGMAX == (v = rofffindarg(arg + 1))) {
773: roff_warn(tree, arg, "argument-like parameter `%s' to "
774: "`%s'", &arg[1], toknames[tok]);
1.6 kristaps 775: return(-1);
1.12 kristaps 776: }
777:
778: if ( ! roffargok(tok, v)) {
779: roff_warn(tree, arg, "invalid argument parameter `%s' to "
780: "`%s'", tokargnames[v], toknames[tok]);
1.6 kristaps 781: return(-1);
1.12 kristaps 782: }
783:
784: if ( ! (ROFF_VALUE & tokenargs[v]))
1.6 kristaps 785: return(v);
786:
787: *in = ++argv;
788:
1.12 kristaps 789: if (NULL == *argv) {
790: roff_err(tree, arg, "empty value of `%s' for `%s'",
791: tokargnames[v], toknames[tok]);
792: return(ROFF_ARGMAX);
793: }
1.6 kristaps 794:
1.12 kristaps 795: return(v);
1.6 kristaps 796: }
797:
798:
1.1 kristaps 799: /* ARGSUSED */
800: static int
801: roff_Dd(ROFFCALL_ARGS)
802: {
803:
1.4 kristaps 804: if (ROFF_BODY & tree->state) {
805: assert( ! (ROFF_PRELUDE & tree->state));
806: assert(ROFF_PRELUDE_Dd & tree->state);
807: return(roff_text(tok, tree, argv, type));
808: }
809:
1.1 kristaps 810: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 811: assert( ! (ROFF_BODY & tree->state));
812:
1.6 kristaps 813: if (ROFF_PRELUDE_Dd & tree->state) {
1.12 kristaps 814: roff_err(tree, *argv, "repeated `Dd' in prelude");
1.6 kristaps 815: return(0);
816: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 817: roff_err(tree, *argv, "out-of-order `Dd' in prelude");
1.1 kristaps 818: return(0);
819: }
820:
1.4 kristaps 821: /* TODO: parse date. */
822:
1.1 kristaps 823: assert(NULL == tree->last);
824: tree->state |= ROFF_PRELUDE_Dd;
825:
826: return(1);
827: }
828:
829:
830: /* ARGSUSED */
831: static int
832: roff_Dt(ROFFCALL_ARGS)
833: {
834:
1.4 kristaps 835: if (ROFF_BODY & tree->state) {
836: assert( ! (ROFF_PRELUDE & tree->state));
837: assert(ROFF_PRELUDE_Dt & tree->state);
838: return(roff_text(tok, tree, argv, type));
839: }
840:
1.1 kristaps 841: assert(ROFF_PRELUDE & tree->state);
1.4 kristaps 842: assert( ! (ROFF_BODY & tree->state));
843:
1.6 kristaps 844: if ( ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 845: roff_err(tree, *argv, "out-of-order `Dt' in prelude");
1.1 kristaps 846: return(0);
1.6 kristaps 847: } else if (ROFF_PRELUDE_Dt & tree->state) {
1.12 kristaps 848: roff_err(tree, *argv, "repeated `Dt' in prelude");
1.6 kristaps 849: return(0);
1.1 kristaps 850: }
851:
1.4 kristaps 852: /* TODO: parse date. */
853:
1.1 kristaps 854: assert(NULL == tree->last);
855: tree->state |= ROFF_PRELUDE_Dt;
856:
857: return(1);
858: }
859:
860:
861: /* ARGSUSED */
862: static int
863: roff_Os(ROFFCALL_ARGS)
864: {
865:
866: if (ROFF_EXIT == type) {
1.18 ! kristaps 867: roffnode_free(tree);
! 868: return((*tree->cb.rofftail)(tree->arg));
1.4 kristaps 869: } else if (ROFF_BODY & tree->state) {
870: assert( ! (ROFF_PRELUDE & tree->state));
871: assert(ROFF_PRELUDE_Os & tree->state);
872: return(roff_text(tok, tree, argv, type));
873: }
1.1 kristaps 874:
875: assert(ROFF_PRELUDE & tree->state);
876: if ( ! (ROFF_PRELUDE_Dt & tree->state) ||
877: ! (ROFF_PRELUDE_Dd & tree->state)) {
1.12 kristaps 878: roff_err(tree, *argv, "out-of-order `Os' in prelude");
1.1 kristaps 879: return(0);
880: }
881:
1.4 kristaps 882: /* TODO: extract OS. */
1.1 kristaps 883:
884: tree->state |= ROFF_PRELUDE_Os;
885: tree->state &= ~ROFF_PRELUDE;
886: tree->state |= ROFF_BODY;
887:
1.4 kristaps 888: assert(NULL == tree->last);
889:
1.18 ! kristaps 890: if (NULL == roffnode_new(tok, tree))
! 891: return(0);
! 892:
! 893: return((*tree->cb.roffhead)(tree->arg));
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:
1.18 ! kristaps 934: if ( ! (*tree->cb.roffblkin)(tree->arg, tok, argcp, argvp))
! 935: return(0);
! 936:
! 937: if (NULL == *argv)
! 938: return(1);
! 939:
1.15 kristaps 940: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 941: return(0);
942:
943: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 944: while (*argv) {
1.18 ! kristaps 945: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 946: return(0);
947: }
1.18 ! kristaps 948: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 949: }
950:
1.1 kristaps 951: while (*argv) {
1.8 kristaps 952: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
953: if (NULL == tokens[c].cb) {
1.12 kristaps 954: roff_err(tree, *argv, "unsupported "
955: "macro `%s'",
956: toknames[c]);
1.8 kristaps 957: return(0);
958: }
1.14 kristaps 959: if ( ! (*tokens[c].cb)(c, tree, argv, ROFF_ENTER))
1.2 kristaps 960: return(0);
1.14 kristaps 961: break;
1.8 kristaps 962: }
1.12 kristaps 963:
1.17 kristaps 964: assert(tree->arg);
1.15 kristaps 965: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 966: return(0);
967: }
1.12 kristaps 968:
1.18 ! kristaps 969: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 970: }
971:
972:
973: /* ARGSUSED */
974: static int
975: roff_text(ROFFCALL_ARGS)
976: {
977: int i, c, argcp[ROFF_MAXARG];
978: char *v, *argvp[ROFF_MAXARG];
979:
1.4 kristaps 980: if (ROFF_PRELUDE & tree->state) {
1.12 kristaps 981: roff_err(tree, *argv, "`%s' disallowed in prelude",
982: toknames[tok]);
1.4 kristaps 983: return(0);
984: }
985:
1.2 kristaps 986: i = 0;
1.12 kristaps 987: argv++;
1.5 kristaps 988:
1.12 kristaps 989: while (-1 != (c = roffnextopt(tree, tok, &argv, &v))) {
990: if (ROFF_ARGMAX == c)
1.2 kristaps 991: return(0);
1.12 kristaps 992:
1.2 kristaps 993: argcp[i] = c;
994: argvp[i] = v;
1.5 kristaps 995: i++;
1.1 kristaps 996: argv++;
997: }
998:
1.5 kristaps 999: argcp[i] = ROFF_ARGMAX;
1000: argvp[i] = NULL;
1001:
1.15 kristaps 1002: if ( ! (*tree->cb.roffin)(tree->arg, tok, argcp, argvp))
1.2 kristaps 1003: return(0);
1.1 kristaps 1004:
1.2 kristaps 1005: if ( ! (ROFF_PARSED & tokens[tok].flags)) {
1.14 kristaps 1006: while (*argv) {
1.15 kristaps 1007: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1008: return(0);
1009: }
1.15 kristaps 1010: return((*tree->cb.roffout)(tree->arg, tok));
1.2 kristaps 1011: }
1.1 kristaps 1012:
1.2 kristaps 1013: while (*argv) {
1.8 kristaps 1014: if (ROFF_MAX != (c = rofffindcallable(*argv))) {
1015: if (NULL == tokens[c].cb) {
1.12 kristaps 1016: roff_err(tree, *argv, "unsupported "
1017: "macro `%s'",
1018: toknames[c]);
1.8 kristaps 1019: return(0);
1020: }
1.2 kristaps 1021: if ( ! (*tokens[c].cb)(c, tree,
1.12 kristaps 1022: argv, ROFF_ENTER))
1.2 kristaps 1023: return(0);
1.14 kristaps 1024: break;
1.8 kristaps 1025: }
1.15 kristaps 1026: if ( ! (*tree->cb.roffdata)(tree->arg, *argv++))
1.14 kristaps 1027: return(0);
1028: }
1.12 kristaps 1029:
1.15 kristaps 1030: return((*tree->cb.roffout)(tree->arg, tok));
1.6 kristaps 1031: }
1032:
1033:
1.9 kristaps 1034: /* ARGSUSED */
1.6 kristaps 1035: static int
1036: roff_comment(ROFFCALL_ARGS)
1037: {
1038:
1039: return(1);
1.1 kristaps 1040: }
1.9 kristaps 1041:
1042:
1043: /* ARGSUSED */
1044: static int
1045: roff_close(ROFFCALL_ARGS)
1046: {
1047:
1048: return(1);
1049: }
1.11 kristaps 1050:
1051:
1052: /* ARGSUSED */
1053: static int
1054: roff_special(ROFFCALL_ARGS)
1055: {
1056:
1.15 kristaps 1057: return((*tree->cb.roffspecial)(tree->arg, tok));
1.11 kristaps 1058: }
1.12 kristaps 1059:
1060:
1061: static void
1062: roff_warn(const struct rofftree *tree, const char *pos, char *fmt, ...)
1063: {
1064: va_list ap;
1065: char buf[128];
1066:
1067: va_start(ap, fmt);
1068: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1069: va_end(ap);
1070:
1.15 kristaps 1071: (*tree->cb.roffmsg)(tree->arg,
1072: ROFF_WARN, tree->cur, pos, buf);
1.12 kristaps 1073: }
1074:
1075:
1076: static void
1077: roff_err(const struct rofftree *tree, const char *pos, char *fmt, ...)
1078: {
1079: va_list ap;
1080: char buf[128];
1081:
1082: va_start(ap, fmt);
1083: (void)vsnprintf(buf, sizeof(buf), fmt, ap);
1084: va_end(ap);
1085:
1.15 kristaps 1086: (*tree->cb.roffmsg)(tree->arg,
1087: ROFF_ERROR, tree->cur, pos, buf);
1.12 kristaps 1088: }
CVSweb
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to roff.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [cvsweb.bsd.lv] / mandoc