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1.7 ! schwarze 1: /* $Id: mdoc_state.c,v 1.6 2017/05/04 17:48:29 schwarze Exp $ */
1.1 schwarze 2: /*
1.5 schwarze 3: * Copyright (c) 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
1.1 schwarze 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 above
7: * copyright notice and this permission notice appear in all copies.
8: *
9: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: */
17: #include <sys/types.h>
18:
1.6 schwarze 19: #include <assert.h>
1.1 schwarze 20: #include <stdlib.h>
21: #include <string.h>
22:
23: #include "mandoc.h"
24: #include "roff.h"
25: #include "mdoc.h"
26: #include "libmandoc.h"
27: #include "libmdoc.h"
28:
29: #define STATE_ARGS struct roff_man *mdoc, struct roff_node *n
30:
31: typedef void (*state_handler)(STATE_ARGS);
32:
33: static void state_bd(STATE_ARGS);
1.2 schwarze 34: static void state_bl(STATE_ARGS);
1.1 schwarze 35: static void state_dl(STATE_ARGS);
36: static void state_sh(STATE_ARGS);
37: static void state_sm(STATE_ARGS);
38:
1.5 schwarze 39: static const state_handler __state_handlers[MDOC_MAX - MDOC_Dd] = {
1.1 schwarze 40: NULL, /* Dd */
41: NULL, /* Dt */
42: NULL, /* Os */
43: state_sh, /* Sh */
44: NULL, /* Ss */
45: NULL, /* Pp */
46: NULL, /* D1 */
47: state_dl, /* Dl */
48: state_bd, /* Bd */
49: NULL, /* Ed */
1.2 schwarze 50: state_bl, /* Bl */
1.1 schwarze 51: NULL, /* El */
52: NULL, /* It */
53: NULL, /* Ad */
54: NULL, /* An */
1.5 schwarze 55: NULL, /* Ap */
1.1 schwarze 56: NULL, /* Ar */
57: NULL, /* Cd */
58: NULL, /* Cm */
59: NULL, /* Dv */
60: NULL, /* Er */
61: NULL, /* Ev */
62: NULL, /* Ex */
63: NULL, /* Fa */
64: NULL, /* Fd */
65: NULL, /* Fl */
66: NULL, /* Fn */
67: NULL, /* Ft */
68: NULL, /* Ic */
69: NULL, /* In */
70: NULL, /* Li */
71: NULL, /* Nd */
72: NULL, /* Nm */
73: NULL, /* Op */
74: NULL, /* Ot */
75: NULL, /* Pa */
76: NULL, /* Rv */
77: NULL, /* St */
78: NULL, /* Va */
79: NULL, /* Vt */
80: NULL, /* Xr */
81: NULL, /* %A */
82: NULL, /* %B */
83: NULL, /* %D */
84: NULL, /* %I */
85: NULL, /* %J */
86: NULL, /* %N */
87: NULL, /* %O */
88: NULL, /* %P */
89: NULL, /* %R */
90: NULL, /* %T */
91: NULL, /* %V */
92: NULL, /* Ac */
93: NULL, /* Ao */
94: NULL, /* Aq */
95: NULL, /* At */
96: NULL, /* Bc */
97: NULL, /* Bf */
98: NULL, /* Bo */
99: NULL, /* Bq */
100: NULL, /* Bsx */
101: NULL, /* Bx */
102: NULL, /* Db */
103: NULL, /* Dc */
104: NULL, /* Do */
105: NULL, /* Dq */
106: NULL, /* Ec */
107: NULL, /* Ef */
108: NULL, /* Em */
109: NULL, /* Eo */
110: NULL, /* Fx */
111: NULL, /* Ms */
112: NULL, /* No */
113: NULL, /* Ns */
114: NULL, /* Nx */
115: NULL, /* Ox */
116: NULL, /* Pc */
117: NULL, /* Pf */
118: NULL, /* Po */
119: NULL, /* Pq */
120: NULL, /* Qc */
121: NULL, /* Ql */
122: NULL, /* Qo */
123: NULL, /* Qq */
124: NULL, /* Re */
125: NULL, /* Rs */
126: NULL, /* Sc */
127: NULL, /* So */
128: NULL, /* Sq */
129: state_sm, /* Sm */
130: NULL, /* Sx */
131: NULL, /* Sy */
132: NULL, /* Tn */
133: NULL, /* Ux */
134: NULL, /* Xc */
135: NULL, /* Xo */
136: NULL, /* Fo */
137: NULL, /* Fc */
138: NULL, /* Oo */
139: NULL, /* Oc */
140: NULL, /* Bk */
141: NULL, /* Ek */
142: NULL, /* Bt */
143: NULL, /* Hf */
144: NULL, /* Fr */
145: NULL, /* Ud */
146: NULL, /* Lb */
147: NULL, /* Lp */
148: NULL, /* Lk */
149: NULL, /* Mt */
150: NULL, /* Brq */
151: NULL, /* Bro */
152: NULL, /* Brc */
153: NULL, /* %C */
154: NULL, /* Es */
155: NULL, /* En */
156: NULL, /* Dx */
157: NULL, /* %Q */
158: NULL, /* sp */
159: NULL, /* %U */
160: NULL, /* Ta */
161: };
1.5 schwarze 162: static const state_handler *const state_handlers = __state_handlers - MDOC_Dd;
1.1 schwarze 163:
164:
165: void
166: mdoc_state(struct roff_man *mdoc, struct roff_node *n)
167: {
168: state_handler handler;
169:
1.6 schwarze 170: if (n->tok == TOKEN_NONE || n->tok < ROFF_MAX)
1.1 schwarze 171: return;
172:
1.6 schwarze 173: assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
1.1 schwarze 174: if ( ! (mdoc_macros[n->tok].flags & MDOC_PROLOGUE))
175: mdoc->flags |= MDOC_PBODY;
176:
177: handler = state_handlers[n->tok];
178: if (*handler)
179: (*handler)(mdoc, n);
180: }
181:
182: void
183: mdoc_state_reset(struct roff_man *mdoc)
184: {
185:
186: roff_setreg(mdoc->roff, "nS", 0, '=');
187: mdoc->flags = 0;
188: }
189:
190: static void
191: state_bd(STATE_ARGS)
192: {
193: enum mdocargt arg;
194:
195: if (n->type != ROFFT_HEAD &&
196: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
1.3 schwarze 197: return;
198:
199: if (n->parent->args == NULL)
1.1 schwarze 200: return;
201:
202: arg = n->parent->args->argv[0].arg;
203: if (arg != MDOC_Literal && arg != MDOC_Unfilled)
204: return;
205:
206: state_dl(mdoc, n);
1.2 schwarze 207: }
208:
209: static void
210: state_bl(STATE_ARGS)
211: {
212:
213: if (n->type != ROFFT_HEAD || n->parent->args == NULL)
214: return;
215:
216: switch(n->parent->args->argv[0].arg) {
217: case MDOC_Diag:
218: n->norm->Bl.type = LIST_diag;
219: break;
220: case MDOC_Column:
221: n->norm->Bl.type = LIST_column;
222: break;
223: default:
224: break;
225: }
1.1 schwarze 226: }
227:
228: static void
229: state_dl(STATE_ARGS)
230: {
231:
232: switch (n->type) {
233: case ROFFT_HEAD:
234: mdoc->flags |= MDOC_LITERAL;
235: break;
236: case ROFFT_BODY:
237: mdoc->flags &= ~MDOC_LITERAL;
238: break;
239: default:
240: break;
241: }
242: }
243:
244: static void
245: state_sh(STATE_ARGS)
246: {
247: struct roff_node *nch;
248: char *secname;
249:
250: if (n->type != ROFFT_HEAD)
251: return;
252:
1.4 schwarze 253: if ( ! (n->flags & NODE_VALID)) {
1.1 schwarze 254: secname = NULL;
255: deroff(&secname, n);
256:
257: /*
258: * Set the section attribute for the BLOCK, HEAD,
259: * and HEAD children; the latter can only be TEXT
260: * nodes, so no recursion is needed. For other
261: * nodes, including the .Sh BODY, this is done
262: * when allocating the node data structures, but
263: * for .Sh BLOCK and HEAD, the section is still
264: * unknown at that time.
265: */
266:
267: n->sec = n->parent->sec = secname == NULL ?
268: SEC_CUSTOM : mdoc_a2sec(secname);
269: for (nch = n->child; nch != NULL; nch = nch->next)
270: nch->sec = n->sec;
271: free(secname);
272: }
273:
274: if ((mdoc->lastsec = n->sec) == SEC_SYNOPSIS) {
275: roff_setreg(mdoc->roff, "nS", 1, '=');
276: mdoc->flags |= MDOC_SYNOPSIS;
277: } else {
278: roff_setreg(mdoc->roff, "nS", 0, '=');
279: mdoc->flags &= ~MDOC_SYNOPSIS;
280: }
281: }
282:
283: static void
284: state_sm(STATE_ARGS)
285: {
286:
287: if (n->child == NULL)
288: mdoc->flags ^= MDOC_SMOFF;
289: else if ( ! strcmp(n->child->string, "on"))
290: mdoc->flags &= ~MDOC_SMOFF;
291: else if ( ! strcmp(n->child->string, "off"))
292: mdoc->flags |= MDOC_SMOFF;
293: }