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1.14 ! schwarze 1: /* $Id: mdoc_state.c,v 1.13 2018/12/31 04:55:47 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>
1.11 schwarze 20: #include <stdio.h>
1.1 schwarze 21: #include <stdlib.h>
22: #include <string.h>
23:
24: #include "mandoc.h"
25: #include "roff.h"
26: #include "mdoc.h"
27: #include "libmandoc.h"
1.12 schwarze 28: #include "roff_int.h"
1.1 schwarze 29: #include "libmdoc.h"
30:
31: #define STATE_ARGS struct roff_man *mdoc, struct roff_node *n
32:
33: typedef void (*state_handler)(STATE_ARGS);
34:
35: static void state_bd(STATE_ARGS);
1.2 schwarze 36: static void state_bl(STATE_ARGS);
1.1 schwarze 37: static void state_dl(STATE_ARGS);
38: static void state_sh(STATE_ARGS);
39: static void state_sm(STATE_ARGS);
40:
1.10 schwarze 41: static const state_handler state_handlers[MDOC_MAX - MDOC_Dd] = {
1.1 schwarze 42: NULL, /* Dd */
43: NULL, /* Dt */
44: NULL, /* Os */
45: state_sh, /* Sh */
46: NULL, /* Ss */
47: NULL, /* Pp */
48: NULL, /* D1 */
49: state_dl, /* Dl */
50: state_bd, /* Bd */
51: NULL, /* Ed */
1.2 schwarze 52: state_bl, /* Bl */
1.1 schwarze 53: NULL, /* El */
54: NULL, /* It */
55: NULL, /* Ad */
56: NULL, /* An */
1.5 schwarze 57: NULL, /* Ap */
1.1 schwarze 58: NULL, /* Ar */
59: NULL, /* Cd */
60: NULL, /* Cm */
61: NULL, /* Dv */
62: NULL, /* Er */
63: NULL, /* Ev */
64: NULL, /* Ex */
65: NULL, /* Fa */
66: NULL, /* Fd */
67: NULL, /* Fl */
68: NULL, /* Fn */
69: NULL, /* Ft */
70: NULL, /* Ic */
71: NULL, /* In */
72: NULL, /* Li */
73: NULL, /* Nd */
74: NULL, /* Nm */
75: NULL, /* Op */
76: NULL, /* Ot */
77: NULL, /* Pa */
78: NULL, /* Rv */
79: NULL, /* St */
80: NULL, /* Va */
81: NULL, /* Vt */
82: NULL, /* Xr */
83: NULL, /* %A */
84: NULL, /* %B */
85: NULL, /* %D */
86: NULL, /* %I */
87: NULL, /* %J */
88: NULL, /* %N */
89: NULL, /* %O */
90: NULL, /* %P */
91: NULL, /* %R */
92: NULL, /* %T */
93: NULL, /* %V */
94: NULL, /* Ac */
95: NULL, /* Ao */
96: NULL, /* Aq */
97: NULL, /* At */
98: NULL, /* Bc */
99: NULL, /* Bf */
100: NULL, /* Bo */
101: NULL, /* Bq */
102: NULL, /* Bsx */
103: NULL, /* Bx */
104: NULL, /* Db */
105: NULL, /* Dc */
106: NULL, /* Do */
107: NULL, /* Dq */
108: NULL, /* Ec */
109: NULL, /* Ef */
110: NULL, /* Em */
111: NULL, /* Eo */
112: NULL, /* Fx */
113: NULL, /* Ms */
114: NULL, /* No */
115: NULL, /* Ns */
116: NULL, /* Nx */
117: NULL, /* Ox */
118: NULL, /* Pc */
119: NULL, /* Pf */
120: NULL, /* Po */
121: NULL, /* Pq */
122: NULL, /* Qc */
123: NULL, /* Ql */
124: NULL, /* Qo */
125: NULL, /* Qq */
126: NULL, /* Re */
127: NULL, /* Rs */
128: NULL, /* Sc */
129: NULL, /* So */
130: NULL, /* Sq */
131: state_sm, /* Sm */
132: NULL, /* Sx */
133: NULL, /* Sy */
134: NULL, /* Tn */
135: NULL, /* Ux */
136: NULL, /* Xc */
137: NULL, /* Xo */
138: NULL, /* Fo */
139: NULL, /* Fc */
140: NULL, /* Oo */
141: NULL, /* Oc */
142: NULL, /* Bk */
143: NULL, /* Ek */
144: NULL, /* Bt */
145: NULL, /* Hf */
146: NULL, /* Fr */
147: NULL, /* Ud */
148: NULL, /* Lb */
149: NULL, /* Lp */
150: NULL, /* Lk */
151: NULL, /* Mt */
152: NULL, /* Brq */
153: NULL, /* Bro */
154: NULL, /* Brc */
155: NULL, /* %C */
156: NULL, /* Es */
157: NULL, /* En */
158: NULL, /* Dx */
159: NULL, /* %Q */
160: NULL, /* %U */
161: NULL, /* Ta */
162: };
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);
1.10 schwarze 174: if ((mdoc_macro(n->tok)->flags & MDOC_PROLOGUE) == 0)
1.1 schwarze 175: mdoc->flags |= MDOC_PBODY;
176:
1.10 schwarze 177: handler = state_handlers[n->tok - MDOC_Dd];
1.1 schwarze 178: if (*handler)
179: (*handler)(mdoc, n);
180: }
181:
182: static void
183: state_bd(STATE_ARGS)
184: {
185: enum mdocargt arg;
186:
187: if (n->type != ROFFT_HEAD &&
188: (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
1.3 schwarze 189: return;
190:
191: if (n->parent->args == NULL)
1.1 schwarze 192: return;
193:
194: arg = n->parent->args->argv[0].arg;
195: if (arg != MDOC_Literal && arg != MDOC_Unfilled)
196: return;
197:
198: state_dl(mdoc, n);
1.2 schwarze 199: }
200:
201: static void
202: state_bl(STATE_ARGS)
203: {
1.9 schwarze 204: struct mdoc_arg *args;
205: size_t i;
1.2 schwarze 206:
207: if (n->type != ROFFT_HEAD || n->parent->args == NULL)
208: return;
209:
1.9 schwarze 210: args = n->parent->args;
211: for (i = 0; i < args->argc; i++) {
212: switch(args->argv[i].arg) {
213: case MDOC_Diag:
214: n->norm->Bl.type = LIST_diag;
215: return;
216: case MDOC_Column:
217: n->norm->Bl.type = LIST_column;
218: return;
219: default:
220: break;
221: }
1.2 schwarze 222: }
1.1 schwarze 223: }
224:
225: static void
226: state_dl(STATE_ARGS)
227: {
228:
229: switch (n->type) {
230: case ROFFT_HEAD:
1.14 ! schwarze 231: mdoc->flags |= ROFF_NOFILL;
1.1 schwarze 232: break;
233: case ROFFT_BODY:
1.14 ! schwarze 234: mdoc->flags &= ~ROFF_NOFILL;
1.1 schwarze 235: break;
236: default:
237: break;
238: }
239: }
240:
241: static void
242: state_sh(STATE_ARGS)
243: {
244: struct roff_node *nch;
245: char *secname;
246:
247: if (n->type != ROFFT_HEAD)
248: return;
249:
1.4 schwarze 250: if ( ! (n->flags & NODE_VALID)) {
1.1 schwarze 251: secname = NULL;
252: deroff(&secname, n);
253:
254: /*
255: * Set the section attribute for the BLOCK, HEAD,
256: * and HEAD children; the latter can only be TEXT
257: * nodes, so no recursion is needed. For other
258: * nodes, including the .Sh BODY, this is done
259: * when allocating the node data structures, but
260: * for .Sh BLOCK and HEAD, the section is still
261: * unknown at that time.
262: */
263:
264: n->sec = n->parent->sec = secname == NULL ?
265: SEC_CUSTOM : mdoc_a2sec(secname);
266: for (nch = n->child; nch != NULL; nch = nch->next)
267: nch->sec = n->sec;
268: free(secname);
269: }
270:
271: if ((mdoc->lastsec = n->sec) == SEC_SYNOPSIS) {
272: roff_setreg(mdoc->roff, "nS", 1, '=');
273: mdoc->flags |= MDOC_SYNOPSIS;
274: } else {
275: roff_setreg(mdoc->roff, "nS", 0, '=');
276: mdoc->flags &= ~MDOC_SYNOPSIS;
277: }
278: }
279:
280: static void
281: state_sm(STATE_ARGS)
282: {
283:
284: if (n->child == NULL)
285: mdoc->flags ^= MDOC_SMOFF;
286: else if ( ! strcmp(n->child->string, "on"))
287: mdoc->flags &= ~MDOC_SMOFF;
288: else if ( ! strcmp(n->child->string, "off"))
289: mdoc->flags |= MDOC_SMOFF;
290: }