Annotation of src/usr.bin/mandoc/mdoc_markdown.c, Revision 1.22
1.22 ! schwarze 1: /* $OpenBSD: mdoc_markdown.c,v 1.21 2017/05/05 15:16:25 schwarze Exp $ */
1.1 schwarze 2: /*
3: * Copyright (c) 2017 Ingo Schwarze <schwarze@openbsd.org>
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 AUTHORS DISCLAIM ALL WARRANTIES
10: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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:
19: #include <assert.h>
20: #include <ctype.h>
21: #include <stdio.h>
22: #include <string.h>
23:
24: #include "mandoc_aux.h"
25: #include "mandoc.h"
26: #include "roff.h"
27: #include "mdoc.h"
28: #include "main.h"
29:
30: struct md_act {
31: int (*cond)(struct roff_node *n);
32: int (*pre)(struct roff_node *n);
33: void (*post)(struct roff_node *n);
34: const char *prefix; /* pre-node string constant */
35: const char *suffix; /* post-node string constant */
36: };
37:
38: static void md_nodelist(struct roff_node *);
39: static void md_node(struct roff_node *);
40: static const char *md_stack(char c);
41: static void md_preword(void);
42: static void md_rawword(const char *);
43: static void md_word(const char *);
44: static void md_named(const char *);
45: static void md_char(unsigned char);
1.15 schwarze 46: static void md_uri(const char *);
1.1 schwarze 47:
48: static int md_cond_head(struct roff_node *);
49: static int md_cond_body(struct roff_node *);
50:
51: static int md_pre_raw(struct roff_node *);
52: static int md_pre_word(struct roff_node *);
53: static int md_pre_skip(struct roff_node *);
54: static void md_pre_syn(struct roff_node *);
1.5 schwarze 55: static int md_pre_An(struct roff_node *);
1.1 schwarze 56: static int md_pre_Ap(struct roff_node *);
57: static int md_pre_Bd(struct roff_node *);
58: static int md_pre_Bk(struct roff_node *);
59: static int md_pre_Bl(struct roff_node *);
60: static int md_pre_D1(struct roff_node *);
61: static int md_pre_Dl(struct roff_node *);
62: static int md_pre_En(struct roff_node *);
63: static int md_pre_Eo(struct roff_node *);
64: static int md_pre_Fa(struct roff_node *);
65: static int md_pre_Fd(struct roff_node *);
66: static int md_pre_Fn(struct roff_node *);
67: static int md_pre_Fo(struct roff_node *);
68: static int md_pre_In(struct roff_node *);
69: static int md_pre_It(struct roff_node *);
70: static int md_pre_Lk(struct roff_node *);
1.15 schwarze 71: static int md_pre_Mt(struct roff_node *);
1.1 schwarze 72: static int md_pre_Nd(struct roff_node *);
73: static int md_pre_Nm(struct roff_node *);
74: static int md_pre_No(struct roff_node *);
75: static int md_pre_Ns(struct roff_node *);
76: static int md_pre_Pp(struct roff_node *);
77: static int md_pre_Rs(struct roff_node *);
78: static int md_pre_Sh(struct roff_node *);
79: static int md_pre_Sm(struct roff_node *);
80: static int md_pre_Vt(struct roff_node *);
81: static int md_pre_Xr(struct roff_node *);
82: static int md_pre__T(struct roff_node *);
83: static int md_pre_br(struct roff_node *);
84:
85: static void md_post_raw(struct roff_node *);
86: static void md_post_word(struct roff_node *);
87: static void md_post_pc(struct roff_node *);
88: static void md_post_Bk(struct roff_node *);
89: static void md_post_Bl(struct roff_node *);
90: static void md_post_D1(struct roff_node *);
91: static void md_post_En(struct roff_node *);
92: static void md_post_Eo(struct roff_node *);
93: static void md_post_Fa(struct roff_node *);
94: static void md_post_Fd(struct roff_node *);
1.6 schwarze 95: static void md_post_Fl(struct roff_node *);
1.1 schwarze 96: static void md_post_Fn(struct roff_node *);
97: static void md_post_Fo(struct roff_node *);
98: static void md_post_In(struct roff_node *);
99: static void md_post_It(struct roff_node *);
100: static void md_post_Lb(struct roff_node *);
101: static void md_post_Nm(struct roff_node *);
102: static void md_post_Pf(struct roff_node *);
103: static void md_post_Vt(struct roff_node *);
104: static void md_post__T(struct roff_node *);
105:
1.17 schwarze 106: static const struct md_act __md_acts[MDOC_MAX - MDOC_Dd] = {
1.1 schwarze 107: { NULL, NULL, NULL, NULL, NULL }, /* Dd */
108: { NULL, NULL, NULL, NULL, NULL }, /* Dt */
109: { NULL, NULL, NULL, NULL, NULL }, /* Os */
110: { NULL, md_pre_Sh, NULL, NULL, NULL }, /* Sh */
111: { NULL, md_pre_Sh, NULL, NULL, NULL }, /* Ss */
112: { NULL, md_pre_Pp, NULL, NULL, NULL }, /* Pp */
113: { md_cond_body, md_pre_D1, md_post_D1, NULL, NULL }, /* D1 */
114: { md_cond_body, md_pre_Dl, md_post_D1, NULL, NULL }, /* Dl */
115: { md_cond_body, md_pre_Bd, md_post_D1, NULL, NULL }, /* Bd */
116: { NULL, NULL, NULL, NULL, NULL }, /* Ed */
117: { md_cond_body, md_pre_Bl, md_post_Bl, NULL, NULL }, /* Bl */
118: { NULL, NULL, NULL, NULL, NULL }, /* El */
119: { NULL, md_pre_It, md_post_It, NULL, NULL }, /* It */
120: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ad */
1.5 schwarze 121: { NULL, md_pre_An, NULL, NULL, NULL }, /* An */
1.17 schwarze 122: { NULL, md_pre_Ap, NULL, NULL, NULL }, /* Ap */
1.1 schwarze 123: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Ar */
124: { NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cd */
125: { NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Cm */
126: { NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Dv */
127: { NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Er */
128: { NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Ev */
129: { NULL, NULL, NULL, NULL, NULL }, /* Ex */
130: { NULL, md_pre_Fa, md_post_Fa, NULL, NULL }, /* Fa */
131: { NULL, md_pre_Fd, md_post_Fd, "**", "**" }, /* Fd */
1.6 schwarze 132: { NULL, md_pre_raw, md_post_Fl, "**-", "**" }, /* Fl */
1.1 schwarze 133: { NULL, md_pre_Fn, md_post_Fn, NULL, NULL }, /* Fn */
134: { NULL, md_pre_Fd, md_post_raw, "*", "*" }, /* Ft */
135: { NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ic */
1.4 schwarze 136: { NULL, md_pre_In, md_post_In, NULL, NULL }, /* In */
1.1 schwarze 137: { NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Li */
138: { md_cond_head, md_pre_Nd, NULL, NULL, NULL }, /* Nd */
139: { NULL, md_pre_Nm, md_post_Nm, "**", "**" }, /* Nm */
140: { md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Op */
141: { NULL, md_pre_Fd, md_post_raw, "*", "*" }, /* Ot */
142: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Pa */
143: { NULL, NULL, NULL, NULL, NULL }, /* Rv */
144: { NULL, NULL, NULL, NULL, NULL }, /* St */
145: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Va */
146: { NULL, md_pre_Vt, md_post_Vt, "*", "*" }, /* Vt */
147: { NULL, md_pre_Xr, NULL, NULL, NULL }, /* Xr */
148: { NULL, NULL, md_post_pc, NULL, NULL }, /* %A */
149: { NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %B */
150: { NULL, NULL, md_post_pc, NULL, NULL }, /* %D */
151: { NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %I */
152: { NULL, md_pre_raw, md_post_pc, "*", "*" }, /* %J */
153: { NULL, NULL, md_post_pc, NULL, NULL }, /* %N */
154: { NULL, NULL, md_post_pc, NULL, NULL }, /* %O */
155: { NULL, NULL, md_post_pc, NULL, NULL }, /* %P */
156: { NULL, NULL, md_post_pc, NULL, NULL }, /* %R */
157: { NULL, md_pre__T, md_post__T, NULL, NULL }, /* %T */
158: { NULL, NULL, md_post_pc, NULL, NULL }, /* %V */
159: { NULL, NULL, NULL, NULL, NULL }, /* Ac */
160: { md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Ao */
161: { md_cond_body, md_pre_word, md_post_word, "<", ">" }, /* Aq */
162: { NULL, NULL, NULL, NULL, NULL }, /* At */
163: { NULL, NULL, NULL, NULL, NULL }, /* Bc */
164: { NULL, NULL, NULL, NULL, NULL }, /* Bf XXX not implemented */
165: { md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bo */
166: { md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Bq */
167: { NULL, NULL, NULL, NULL, NULL }, /* Bsx */
168: { NULL, NULL, NULL, NULL, NULL }, /* Bx */
169: { NULL, NULL, NULL, NULL, NULL }, /* Db */
170: { NULL, NULL, NULL, NULL, NULL }, /* Dc */
171: { md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Do */
172: { md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Dq */
173: { NULL, NULL, NULL, NULL, NULL }, /* Ec */
174: { NULL, NULL, NULL, NULL, NULL }, /* Ef */
175: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Em */
176: { md_cond_body, md_pre_Eo, md_post_Eo, NULL, NULL }, /* Eo */
177: { NULL, NULL, NULL, NULL, NULL }, /* Fx */
178: { NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Ms */
179: { NULL, md_pre_No, NULL, NULL, NULL }, /* No */
180: { NULL, md_pre_Ns, NULL, NULL, NULL }, /* Ns */
181: { NULL, NULL, NULL, NULL, NULL }, /* Nx */
182: { NULL, NULL, NULL, NULL, NULL }, /* Ox */
183: { NULL, NULL, NULL, NULL, NULL }, /* Pc */
184: { NULL, NULL, md_post_Pf, NULL, NULL }, /* Pf */
185: { md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Po */
186: { md_cond_body, md_pre_word, md_post_word, "(", ")" }, /* Pq */
187: { NULL, NULL, NULL, NULL, NULL }, /* Qc */
188: { md_cond_body, md_pre_raw, md_post_raw, "'`", "`'" }, /* Ql */
189: { md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qo */
190: { md_cond_body, md_pre_word, md_post_word, "\"", "\"" }, /* Qq */
191: { NULL, NULL, NULL, NULL, NULL }, /* Re */
192: { md_cond_body, md_pre_Rs, NULL, NULL, NULL }, /* Rs */
193: { NULL, NULL, NULL, NULL, NULL }, /* Sc */
194: { md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* So */
195: { md_cond_body, md_pre_word, md_post_word, "'", "'" }, /* Sq */
196: { NULL, md_pre_Sm, NULL, NULL, NULL }, /* Sm */
197: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Sx */
198: { NULL, md_pre_raw, md_post_raw, "**", "**" }, /* Sy */
199: { NULL, md_pre_raw, md_post_raw, "`", "`" }, /* Tn */
200: { NULL, NULL, NULL, NULL, NULL }, /* Ux */
201: { NULL, NULL, NULL, NULL, NULL }, /* Xc */
202: { NULL, NULL, NULL, NULL, NULL }, /* Xo */
203: { NULL, md_pre_Fo, md_post_Fo, "**", "**" }, /* Fo */
204: { NULL, NULL, NULL, NULL, NULL }, /* Fc */
205: { md_cond_body, md_pre_word, md_post_word, "[", "]" }, /* Oo */
206: { NULL, NULL, NULL, NULL, NULL }, /* Oc */
207: { NULL, md_pre_Bk, md_post_Bk, NULL, NULL }, /* Bk */
208: { NULL, NULL, NULL, NULL, NULL }, /* Ek */
209: { NULL, NULL, NULL, NULL, NULL }, /* Bt */
210: { NULL, NULL, NULL, NULL, NULL }, /* Hf */
211: { NULL, md_pre_raw, md_post_raw, "*", "*" }, /* Fr */
212: { NULL, NULL, NULL, NULL, NULL }, /* Ud */
213: { NULL, NULL, md_post_Lb, NULL, NULL }, /* Lb */
214: { NULL, md_pre_Pp, NULL, NULL, NULL }, /* Lp */
215: { NULL, md_pre_Lk, NULL, NULL, NULL }, /* Lk */
1.15 schwarze 216: { NULL, md_pre_Mt, NULL, NULL, NULL }, /* Mt */
1.1 schwarze 217: { md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Brq */
218: { md_cond_body, md_pre_word, md_post_word, "{", "}" }, /* Bro */
219: { NULL, NULL, NULL, NULL, NULL }, /* Brc */
220: { NULL, NULL, md_post_pc, NULL, NULL }, /* %C */
221: { NULL, md_pre_skip, NULL, NULL, NULL }, /* Es */
222: { md_cond_body, md_pre_En, md_post_En, NULL, NULL }, /* En */
223: { NULL, NULL, NULL, NULL, NULL }, /* Dx */
224: { NULL, NULL, md_post_pc, NULL, NULL }, /* %Q */
1.3 schwarze 225: { NULL, md_pre_Lk, md_post_pc, NULL, NULL }, /* %U */
1.1 schwarze 226: { NULL, NULL, NULL, NULL, NULL }, /* Ta */
227: };
1.17 schwarze 228: static const struct md_act *const md_acts = __md_acts - MDOC_Dd;
1.1 schwarze 229:
230: static int outflags;
231: #define MD_spc (1 << 0) /* Blank character before next word. */
232: #define MD_spc_force (1 << 1) /* Even before trailing punctuation. */
233: #define MD_nonl (1 << 2) /* Prevent linebreak in markdown code. */
234: #define MD_nl (1 << 3) /* Break markdown code line. */
235: #define MD_br (1 << 4) /* Insert an output line break. */
236: #define MD_sp (1 << 5) /* Insert a paragraph break. */
237: #define MD_Sm (1 << 6) /* Horizontal spacing mode. */
238: #define MD_Bk (1 << 7) /* Word keep mode. */
1.5 schwarze 239: #define MD_An_split (1 << 8) /* Author mode is "split". */
240: #define MD_An_nosplit (1 << 9) /* Author mode is "nosplit". */
1.1 schwarze 241:
242: static int escflags; /* Escape in generated markdown code: */
243: #define ESC_BOL (1 << 0) /* "#*+-" near the beginning of a line. */
244: #define ESC_NUM (1 << 1) /* "." after a leading number. */
245: #define ESC_HYP (1 << 2) /* "(" immediately after "]". */
246: #define ESC_SQU (1 << 4) /* "]" when "[" is open. */
247: #define ESC_FON (1 << 5) /* "*" immediately after unrelated "*". */
1.8 schwarze 248: #define ESC_EOL (1 << 6) /* " " at the and of a line. */
1.1 schwarze 249:
250: static int code_blocks, quote_blocks, list_blocks;
251: static int outcount;
252:
253: void
254: markdown_mdoc(void *arg, const struct roff_man *mdoc)
255: {
256: outflags = MD_Sm;
257: md_word(mdoc->meta.title);
258: if (mdoc->meta.msec != NULL) {
259: outflags &= ~MD_spc;
260: md_word("(");
261: md_word(mdoc->meta.msec);
262: md_word(")");
263: }
264: md_word("-");
265: md_word(mdoc->meta.vol);
266: if (mdoc->meta.arch != NULL) {
267: md_word("(");
268: md_word(mdoc->meta.arch);
269: md_word(")");
270: }
271: outflags |= MD_sp;
272:
273: md_nodelist(mdoc->first->child);
274:
275: outflags |= MD_sp;
276: md_word(mdoc->meta.os);
277: md_word("-");
278: md_word(mdoc->meta.date);
279: putchar('\n');
280: }
281:
282: static void
283: md_nodelist(struct roff_node *n)
284: {
285: while (n != NULL) {
286: md_node(n);
287: n = n->next;
288: }
289: }
290:
291: static void
292: md_node(struct roff_node *n)
293: {
294: const struct md_act *act;
295: int cond, process_children;
296:
297: if (n->flags & NODE_NOPRT)
298: return;
299:
300: if (outflags & MD_nonl)
301: outflags &= ~(MD_nl | MD_sp);
302: else if (outflags & MD_spc && n->flags & NODE_LINE)
303: outflags |= MD_nl;
304:
305: act = NULL;
306: cond = 0;
307: process_children = 1;
308: n->flags &= ~NODE_ENDED;
309:
1.18 schwarze 310: if (n->type == ROFFT_TEXT) {
1.1 schwarze 311: if (n->flags & NODE_DELIMC)
312: outflags &= ~(MD_spc | MD_spc_force);
313: else if (outflags & MD_Sm)
314: outflags |= MD_spc_force;
315: md_word(n->string);
316: if (n->flags & NODE_DELIMO)
317: outflags &= ~(MD_spc | MD_spc_force);
318: else if (outflags & MD_Sm)
319: outflags |= MD_spc;
1.18 schwarze 320: } else if (n->tok < ROFF_MAX) {
321: switch (n->tok) {
322: case ROFF_br:
1.19 schwarze 323: process_children = md_pre_br(n);
1.21 schwarze 324: break;
325: case ROFF_sp:
326: process_children = md_pre_Pp(n);
1.19 schwarze 327: break;
1.20 schwarze 328: default:
1.19 schwarze 329: process_children = 0;
1.18 schwarze 330: break;
331: }
332: } else {
333: assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
1.1 schwarze 334: act = md_acts + n->tok;
335: cond = act->cond == NULL || (*act->cond)(n);
336: if (cond && act->pre != NULL &&
337: (n->end == ENDBODY_NOT || n->child != NULL))
338: process_children = (*act->pre)(n);
339: }
340:
341: if (process_children && n->child != NULL)
342: md_nodelist(n->child);
343:
344: if (n->flags & NODE_ENDED)
345: return;
346:
347: if (cond && act->post != NULL)
348: (*act->post)(n);
349:
350: if (n->end != ENDBODY_NOT)
351: n->body->flags |= NODE_ENDED;
352: }
353:
354: static const char *
355: md_stack(char c)
356: {
357: static char *stack;
358: static size_t sz;
359: static size_t cur;
360:
361: switch (c) {
362: case '\0':
363: break;
364: case (char)-1:
365: assert(cur);
366: stack[--cur] = '\0';
367: break;
368: default:
369: if (cur + 1 >= sz) {
370: sz += 8;
371: stack = mandoc_realloc(stack, sz);
372: }
373: stack[cur] = c;
374: stack[++cur] = '\0';
375: break;
376: }
377: return stack == NULL ? "" : stack;
378: }
379:
380: /*
381: * Handle vertical and horizontal spacing.
382: */
383: static void
384: md_preword(void)
385: {
1.9 schwarze 386: const char *cp;
387:
1.1 schwarze 388: /*
389: * If a list block is nested inside a code block or a blockquote,
390: * blank lines for paragraph breaks no longer work; instead,
391: * they terminate the list. Work around this markdown issue
392: * by using mere line breaks instead.
393: */
1.8 schwarze 394:
1.1 schwarze 395: if (list_blocks && outflags & MD_sp) {
396: outflags &= ~MD_sp;
397: outflags |= MD_br;
398: }
399:
1.8 schwarze 400: /*
401: * End the old line if requested.
402: * Escape whitespace at the end of the markdown line
403: * such that it won't look like an output line break.
404: */
1.1 schwarze 405:
406: if (outflags & MD_sp)
407: putchar('\n');
408: else if (outflags & MD_br) {
409: putchar(' ');
410: putchar(' ');
1.8 schwarze 411: } else if (outflags & MD_nl && escflags & ESC_EOL)
412: md_named("zwnj");
1.1 schwarze 413:
414: /* Start a new line if necessary. */
415:
416: if (outflags & (MD_nl | MD_br | MD_sp)) {
417: putchar('\n');
1.9 schwarze 418: for (cp = md_stack('\0'); *cp != '\0'; cp++) {
419: putchar(*cp);
420: if (*cp == '>')
421: putchar(' ');
422: }
1.1 schwarze 423: outflags &= ~(MD_nl | MD_br | MD_sp);
424: escflags = ESC_BOL;
425: outcount = 0;
426:
427: /* Handle horizontal spacing. */
428:
429: } else if (outflags & MD_spc) {
430: if (outflags & MD_Bk)
431: fputs(" ", stdout);
432: else
433: putchar(' ');
434: escflags &= ~ESC_FON;
435: outcount++;
436: }
437:
438: outflags &= ~(MD_spc_force | MD_nonl);
439: if (outflags & MD_Sm)
440: outflags |= MD_spc;
441: else
442: outflags &= ~MD_spc;
443: }
444:
445: /*
446: * Print markdown syntax elements.
447: * Can also be used for constant strings when neither escaping
448: * nor delimiter handling is required.
449: */
450: static void
451: md_rawword(const char *s)
452: {
453: md_preword();
454:
1.8 schwarze 455: if (*s == '\0')
1.1 schwarze 456: return;
457:
458: if (escflags & ESC_FON) {
459: escflags &= ~ESC_FON;
460: if (*s == '*' && !code_blocks)
461: fputs("‌", stdout);
462: }
463:
464: while (*s != '\0') {
465: switch(*s) {
466: case '*':
467: if (s[1] == '\0')
468: escflags |= ESC_FON;
469: break;
470: case '[':
471: escflags |= ESC_SQU;
472: break;
473: case ']':
474: escflags |= ESC_HYP;
475: escflags &= ~ESC_SQU;
476: break;
477: default:
478: break;
479: }
480: md_char(*s++);
481: }
1.8 schwarze 482: if (s[-1] == ' ')
483: escflags |= ESC_EOL;
484: else
485: escflags &= ~ESC_EOL;
1.1 schwarze 486: }
487:
488: /*
489: * Print text and mdoc(7) syntax elements.
490: */
491: static void
492: md_word(const char *s)
493: {
494: const char *seq, *prevfont, *currfont, *nextfont;
495: char c;
496: int bs, sz, uc;
497:
498: /* No spacing before closing delimiters. */
499: if (s[0] != '\0' && s[1] == '\0' &&
500: strchr("!),.:;?]", s[0]) != NULL &&
501: (outflags & MD_spc_force) == 0)
502: outflags &= ~MD_spc;
503:
504: md_preword();
505:
1.8 schwarze 506: if (*s == '\0')
507: return;
508:
1.1 schwarze 509: /* No spacing after opening delimiters. */
510: if ((s[0] == '(' || s[0] == '[') && s[1] == '\0')
511: outflags &= ~MD_spc;
512:
513: prevfont = currfont = "";
514: while ((c = *s++) != '\0') {
515: bs = 0;
516: switch(c) {
517: case ASCII_NBRSP:
518: if (code_blocks)
519: c = ' ';
520: else {
521: md_named("nbsp");
522: c = '\0';
523: }
524: break;
525: case ASCII_HYPH:
526: bs = escflags & ESC_BOL && !code_blocks;
527: c = '-';
528: break;
529: case ASCII_BREAK:
530: continue;
531: case '#':
532: case '+':
533: case '-':
534: bs = escflags & ESC_BOL && !code_blocks;
535: break;
536: case '(':
537: bs = escflags & ESC_HYP && !code_blocks;
538: break;
539: case ')':
1.14 schwarze 540: bs = escflags & ESC_NUM && !code_blocks;
1.1 schwarze 541: break;
542: case '*':
543: case '[':
544: case '_':
545: case '`':
546: bs = !code_blocks;
547: break;
548: case '.':
549: bs = escflags & ESC_NUM && !code_blocks;
550: break;
551: case '<':
552: if (code_blocks == 0) {
553: md_named("lt");
554: c = '\0';
555: }
556: break;
557: case '=':
558: if (escflags & ESC_BOL && !code_blocks) {
559: md_named("equals");
560: c = '\0';
561: }
562: break;
563: case '>':
564: if (code_blocks == 0) {
565: md_named("gt");
566: c = '\0';
567: }
568: break;
569: case '\\':
570: uc = 0;
571: nextfont = NULL;
572: switch (mandoc_escape(&s, &seq, &sz)) {
573: case ESCAPE_UNICODE:
574: uc = mchars_num2uc(seq + 1, sz - 1);
575: break;
576: case ESCAPE_NUMBERED:
577: uc = mchars_num2char(seq, sz);
578: break;
579: case ESCAPE_SPECIAL:
580: uc = mchars_spec2cp(seq, sz);
581: break;
582: case ESCAPE_FONTBOLD:
583: nextfont = "**";
584: break;
585: case ESCAPE_FONTITALIC:
586: nextfont = "*";
587: break;
588: case ESCAPE_FONTBI:
589: nextfont = "***";
590: break;
591: case ESCAPE_FONT:
592: case ESCAPE_FONTROMAN:
593: nextfont = "";
594: break;
595: case ESCAPE_FONTPREV:
596: nextfont = prevfont;
597: break;
598: case ESCAPE_NOSPACE:
599: case ESCAPE_SKIPCHAR:
600: case ESCAPE_OVERSTRIKE:
601: /* XXX not implemented */
602: /* FALLTHROUGH */
603: case ESCAPE_ERROR:
604: default:
605: break;
606: }
607: if (nextfont != NULL && !code_blocks) {
608: if (*currfont != '\0') {
609: outflags &= ~MD_spc;
610: md_rawword(currfont);
611: }
612: prevfont = currfont;
613: currfont = nextfont;
614: if (*currfont != '\0') {
615: outflags &= ~MD_spc;
616: md_rawword(currfont);
617: }
618: }
619: if (uc) {
620: if ((uc < 0x20 && uc != 0x09) ||
621: (uc > 0x7E && uc < 0xA0))
622: uc = 0xFFFD;
623: if (code_blocks) {
624: seq = mchars_uc2str(uc);
625: fputs(seq, stdout);
626: outcount += strlen(seq);
627: } else {
628: printf("&#%d;", uc);
629: outcount++;
630: }
631: escflags &= ~ESC_FON;
632: }
633: c = '\0';
634: break;
635: case ']':
636: bs = escflags & ESC_SQU && !code_blocks;
637: escflags |= ESC_HYP;
638: break;
639: default:
640: break;
641: }
642: if (bs)
643: putchar('\\');
644: md_char(c);
645: }
646: if (*currfont != '\0') {
647: outflags &= ~MD_spc;
648: md_rawword(currfont);
1.8 schwarze 649: } else if (s[-2] == ' ')
650: escflags |= ESC_EOL;
651: else
652: escflags &= ~ESC_EOL;
1.1 schwarze 653: }
654:
655: /*
656: * Print a single HTML named character reference.
657: */
658: static void
659: md_named(const char *s)
660: {
661: printf("&%s;", s);
1.8 schwarze 662: escflags &= ~(ESC_FON | ESC_EOL);
1.1 schwarze 663: outcount++;
664: }
665:
666: /*
667: * Print a single raw character and maintain certain escape flags.
668: */
669: static void
670: md_char(unsigned char c)
671: {
672: if (c != '\0') {
673: putchar(c);
674: if (c == '*')
675: escflags |= ESC_FON;
676: else
677: escflags &= ~ESC_FON;
678: outcount++;
679: }
680: if (c != ']')
681: escflags &= ~ESC_HYP;
682: if (c == ' ' || c == '\t' || c == '>')
683: return;
684: if (isdigit(c) == 0)
685: escflags &= ~ESC_NUM;
686: else if (escflags & ESC_BOL)
687: escflags |= ESC_NUM;
688: escflags &= ~ESC_BOL;
689: }
690:
691: static int
692: md_cond_head(struct roff_node *n)
693: {
694: return n->type == ROFFT_HEAD;
695: }
696:
697: static int
698: md_cond_body(struct roff_node *n)
699: {
700: return n->type == ROFFT_BODY;
701: }
702:
703: static int
704: md_pre_raw(struct roff_node *n)
705: {
706: const char *prefix;
707:
708: if ((prefix = md_acts[n->tok].prefix) != NULL) {
709: md_rawword(prefix);
710: outflags &= ~MD_spc;
1.13 schwarze 711: if (*prefix == '`')
712: code_blocks++;
1.1 schwarze 713: }
714: return 1;
715: }
716:
717: static void
718: md_post_raw(struct roff_node *n)
719: {
720: const char *suffix;
721:
722: if ((suffix = md_acts[n->tok].suffix) != NULL) {
723: outflags &= ~(MD_spc | MD_nl);
724: md_rawword(suffix);
1.13 schwarze 725: if (*suffix == '`')
726: code_blocks--;
1.1 schwarze 727: }
728: }
729:
730: static int
731: md_pre_word(struct roff_node *n)
732: {
733: const char *prefix;
734:
735: if ((prefix = md_acts[n->tok].prefix) != NULL) {
736: md_word(prefix);
737: outflags &= ~MD_spc;
738: }
739: return 1;
740: }
741:
742: static void
743: md_post_word(struct roff_node *n)
744: {
745: const char *suffix;
746:
747: if ((suffix = md_acts[n->tok].suffix) != NULL) {
748: outflags &= ~(MD_spc | MD_nl);
749: md_word(suffix);
750: }
751: }
752:
753: static void
754: md_post_pc(struct roff_node *n)
755: {
756: md_post_raw(n);
757: if (n->parent->tok != MDOC_Rs)
758: return;
759: if (n->next != NULL) {
760: md_word(",");
761: if (n->prev != NULL &&
762: n->prev->tok == n->tok &&
763: n->next->tok == n->tok)
764: md_word("and");
765: } else {
766: md_word(".");
767: outflags |= MD_nl;
768: }
769: }
770:
771: static int
772: md_pre_skip(struct roff_node *n)
773: {
774: return 0;
775: }
776:
777: static void
778: md_pre_syn(struct roff_node *n)
779: {
780: if (n->prev == NULL || ! (n->flags & NODE_SYNPRETTY))
781: return;
782:
783: if (n->prev->tok == n->tok &&
784: n->tok != MDOC_Ft &&
785: n->tok != MDOC_Fo &&
786: n->tok != MDOC_Fn) {
787: outflags |= MD_br;
788: return;
789: }
790:
791: switch (n->prev->tok) {
792: case MDOC_Fd:
793: case MDOC_Fn:
794: case MDOC_Fo:
795: case MDOC_In:
796: case MDOC_Vt:
797: outflags |= MD_sp;
798: break;
799: case MDOC_Ft:
800: if (n->tok != MDOC_Fn && n->tok != MDOC_Fo) {
801: outflags |= MD_sp;
802: break;
803: }
804: /* FALLTHROUGH */
805: default:
806: outflags |= MD_br;
807: break;
808: }
809: }
810:
811: static int
1.5 schwarze 812: md_pre_An(struct roff_node *n)
813: {
814: switch (n->norm->An.auth) {
815: case AUTH_split:
816: outflags &= ~MD_An_nosplit;
817: outflags |= MD_An_split;
818: return 0;
819: case AUTH_nosplit:
820: outflags &= ~MD_An_split;
821: outflags |= MD_An_nosplit;
822: return 0;
823: default:
824: if (outflags & MD_An_split)
825: outflags |= MD_br;
826: else if (n->sec == SEC_AUTHORS &&
827: ! (outflags & MD_An_nosplit))
828: outflags |= MD_An_split;
829: return 1;
830: }
831: }
832:
833: static int
1.1 schwarze 834: md_pre_Ap(struct roff_node *n)
835: {
836: outflags &= ~MD_spc;
837: md_word("'");
838: outflags &= ~MD_spc;
839: return 0;
840: }
841:
842: static int
843: md_pre_Bd(struct roff_node *n)
844: {
845: switch (n->norm->Bd.type) {
846: case DISP_unfilled:
847: case DISP_literal:
848: return md_pre_Dl(n);
849: default:
850: return md_pre_D1(n);
851: }
852: }
853:
854: static int
855: md_pre_Bk(struct roff_node *n)
856: {
857: switch (n->type) {
858: case ROFFT_BLOCK:
859: return 1;
860: case ROFFT_BODY:
861: outflags |= MD_Bk;
862: return 1;
863: default:
864: return 0;
865: }
866: }
867:
868: static void
869: md_post_Bk(struct roff_node *n)
870: {
871: if (n->type == ROFFT_BODY)
872: outflags &= ~MD_Bk;
873: }
874:
875: static int
876: md_pre_Bl(struct roff_node *n)
877: {
878: n->norm->Bl.count = 0;
879: if (n->norm->Bl.type == LIST_column)
880: md_pre_Dl(n);
881: outflags |= MD_sp;
882: return 1;
883: }
884:
885: static void
886: md_post_Bl(struct roff_node *n)
887: {
888: n->norm->Bl.count = 0;
889: if (n->norm->Bl.type == LIST_column)
890: md_post_D1(n);
891: outflags |= MD_sp;
892: }
893:
894: static int
895: md_pre_D1(struct roff_node *n)
896: {
897: /*
898: * Markdown blockquote syntax does not work inside code blocks.
899: * The best we can do is fall back to another nested code block.
900: */
901: if (code_blocks) {
902: md_stack('\t');
903: code_blocks++;
904: } else {
905: md_stack('>');
906: quote_blocks++;
907: }
908: outflags |= MD_sp;
909: return 1;
910: }
911:
912: static void
913: md_post_D1(struct roff_node *n)
914: {
915: md_stack((char)-1);
916: if (code_blocks)
917: code_blocks--;
918: else
919: quote_blocks--;
920: outflags |= MD_sp;
921: }
922:
923: static int
924: md_pre_Dl(struct roff_node *n)
925: {
926: /*
927: * Markdown code block syntax does not work inside blockquotes.
928: * The best we can do is fall back to another nested blockquote.
929: */
930: if (quote_blocks) {
931: md_stack('>');
932: quote_blocks++;
933: } else {
934: md_stack('\t');
935: code_blocks++;
936: }
937: outflags |= MD_sp;
938: return 1;
939: }
940:
941: static int
942: md_pre_En(struct roff_node *n)
943: {
944: if (n->norm->Es == NULL ||
945: n->norm->Es->child == NULL)
946: return 1;
947:
948: md_word(n->norm->Es->child->string);
949: outflags &= ~MD_spc;
950: return 1;
951: }
952:
953: static void
954: md_post_En(struct roff_node *n)
955: {
956: if (n->norm->Es == NULL ||
957: n->norm->Es->child == NULL ||
958: n->norm->Es->child->next == NULL)
959: return;
960:
961: outflags &= ~MD_spc;
962: md_word(n->norm->Es->child->next->string);
963: }
964:
965: static int
966: md_pre_Eo(struct roff_node *n)
967: {
968: if (n->end == ENDBODY_NOT &&
969: n->parent->head->child == NULL &&
970: n->child != NULL &&
971: n->child->end != ENDBODY_NOT)
972: md_preword();
973: else if (n->end != ENDBODY_NOT ? n->child != NULL :
974: n->parent->head->child != NULL && (n->child != NULL ||
975: (n->parent->tail != NULL && n->parent->tail->child != NULL)))
976: outflags &= ~(MD_spc | MD_nl);
977: return 1;
978: }
979:
980: static void
981: md_post_Eo(struct roff_node *n)
982: {
983: if (n->end != ENDBODY_NOT) {
984: outflags |= MD_spc;
985: return;
986: }
987:
1.7 schwarze 988: if (n->child == NULL && n->parent->head->child == NULL)
989: return;
1.1 schwarze 990:
1.7 schwarze 991: if (n->parent->tail != NULL && n->parent->tail->child != NULL)
1.1 schwarze 992: outflags &= ~MD_spc;
1.7 schwarze 993: else
1.1 schwarze 994: outflags |= MD_spc;
995: }
996:
997: static int
998: md_pre_Fa(struct roff_node *n)
999: {
1000: int am_Fa;
1001:
1002: am_Fa = n->tok == MDOC_Fa;
1003:
1004: if (am_Fa)
1005: n = n->child;
1006:
1007: while (n != NULL) {
1008: md_rawword("*");
1009: outflags &= ~MD_spc;
1010: md_node(n);
1011: outflags &= ~MD_spc;
1012: md_rawword("*");
1013: if ((n = n->next) != NULL)
1014: md_word(",");
1015: }
1016: return 0;
1017: }
1018:
1019: static void
1020: md_post_Fa(struct roff_node *n)
1021: {
1022: if (n->next != NULL && n->next->tok == MDOC_Fa)
1023: md_word(",");
1024: }
1025:
1026: static int
1027: md_pre_Fd(struct roff_node *n)
1028: {
1029: md_pre_syn(n);
1030: md_pre_raw(n);
1031: return 1;
1032: }
1033:
1034: static void
1035: md_post_Fd(struct roff_node *n)
1036: {
1037: md_post_raw(n);
1038: outflags |= MD_br;
1.6 schwarze 1039: }
1040:
1041: static void
1042: md_post_Fl(struct roff_node *n)
1043: {
1044: md_post_raw(n);
1045: if (n->child == NULL && n->next != NULL &&
1046: n->next->type != ROFFT_TEXT && !(n->next->flags & NODE_LINE))
1047: outflags &= ~MD_spc;
1.1 schwarze 1048: }
1049:
1050: static int
1051: md_pre_Fn(struct roff_node *n)
1052: {
1053: md_pre_syn(n);
1054:
1055: if ((n = n->child) == NULL)
1056: return 0;
1057:
1058: md_rawword("**");
1059: outflags &= ~MD_spc;
1060: md_node(n);
1061: outflags &= ~MD_spc;
1062: md_rawword("**");
1063: outflags &= ~MD_spc;
1064: md_word("(");
1065:
1066: if ((n = n->next) != NULL)
1067: md_pre_Fa(n);
1068: return 0;
1069: }
1070:
1071: static void
1072: md_post_Fn(struct roff_node *n)
1073: {
1074: md_word(")");
1075: if (n->flags & NODE_SYNPRETTY) {
1076: md_word(";");
1077: outflags |= MD_sp;
1078: }
1079: }
1080:
1081: static int
1082: md_pre_Fo(struct roff_node *n)
1083: {
1084: switch (n->type) {
1085: case ROFFT_BLOCK:
1086: md_pre_syn(n);
1087: break;
1088: case ROFFT_HEAD:
1089: if (n->child == NULL)
1090: return 0;
1091: md_pre_raw(n);
1092: break;
1093: case ROFFT_BODY:
1094: outflags &= ~(MD_spc | MD_nl);
1095: md_word("(");
1096: break;
1097: default:
1098: break;
1099: }
1100: return 1;
1101: }
1102:
1103: static void
1104: md_post_Fo(struct roff_node *n)
1105: {
1106: switch (n->type) {
1107: case ROFFT_HEAD:
1108: if (n->child != NULL)
1109: md_post_raw(n);
1110: break;
1111: case ROFFT_BODY:
1112: md_post_Fn(n);
1113: break;
1114: default:
1115: break;
1116: }
1117: }
1118:
1119: static int
1120: md_pre_In(struct roff_node *n)
1121: {
1122: if (n->flags & NODE_SYNPRETTY) {
1123: md_pre_syn(n);
1.4 schwarze 1124: md_rawword("**");
1.1 schwarze 1125: outflags &= ~MD_spc;
1126: md_word("#include <");
1127: } else {
1128: md_word("<");
1129: outflags &= ~MD_spc;
1.4 schwarze 1130: md_rawword("*");
1.1 schwarze 1131: }
1.4 schwarze 1132: outflags &= ~MD_spc;
1.1 schwarze 1133: return 1;
1134: }
1135:
1136: static void
1137: md_post_In(struct roff_node *n)
1138: {
1139: if (n->flags & NODE_SYNPRETTY) {
1140: outflags &= ~MD_spc;
1.4 schwarze 1141: md_rawword(">**");
1.1 schwarze 1142: outflags |= MD_nl;
1143: } else {
1144: outflags &= ~MD_spc;
1.4 schwarze 1145: md_rawword("*>");
1.1 schwarze 1146: }
1147: }
1148:
1149: static int
1150: md_pre_It(struct roff_node *n)
1151: {
1152: struct roff_node *bln;
1153:
1154: switch (n->type) {
1155: case ROFFT_BLOCK:
1156: return 1;
1157:
1158: case ROFFT_HEAD:
1159: bln = n->parent->parent;
1.10 schwarze 1160: if (bln->norm->Bl.comp == 0 &&
1161: bln->norm->Bl.type != LIST_column)
1.1 schwarze 1162: outflags |= MD_sp;
1163: outflags |= MD_nl;
1164:
1165: switch (bln->norm->Bl.type) {
1166: case LIST_item:
1167: outflags |= MD_br;
1168: return 0;
1169: case LIST_inset:
1170: case LIST_diag:
1171: case LIST_ohang:
1172: outflags |= MD_br;
1173: return 1;
1174: case LIST_tag:
1175: case LIST_hang:
1176: outflags |= MD_sp;
1177: return 1;
1178: case LIST_bullet:
1179: md_rawword("*\t");
1180: break;
1181: case LIST_dash:
1182: case LIST_hyphen:
1183: md_rawword("-\t");
1184: break;
1185: case LIST_enum:
1186: md_preword();
1.11 schwarze 1187: if (bln->norm->Bl.count < 99)
1188: bln->norm->Bl.count++;
1189: printf("%d.\t", bln->norm->Bl.count);
1.1 schwarze 1190: escflags &= ~ESC_FON;
1191: break;
1.10 schwarze 1192: case LIST_column:
1193: outflags |= MD_br;
1194: return 0;
1.1 schwarze 1195: default:
1196: return 0;
1197: }
1198: outflags &= ~MD_spc;
1199: outflags |= MD_nonl;
1200: outcount = 0;
1201: md_stack('\t');
1202: if (code_blocks || quote_blocks)
1203: list_blocks++;
1204: return 0;
1205:
1206: case ROFFT_BODY:
1207: bln = n->parent->parent;
1208: switch (bln->norm->Bl.type) {
1209: case LIST_ohang:
1210: outflags |= MD_br;
1211: break;
1212: case LIST_tag:
1213: case LIST_hang:
1214: md_pre_D1(n);
1215: break;
1216: default:
1217: break;
1218: }
1219: return 1;
1220:
1221: default:
1222: return 0;
1223: }
1224: }
1225:
1226: static void
1227: md_post_It(struct roff_node *n)
1228: {
1229: struct roff_node *bln;
1230: int i, nc;
1231:
1232: if (n->type != ROFFT_BODY)
1233: return;
1234:
1235: bln = n->parent->parent;
1236: switch (bln->norm->Bl.type) {
1237: case LIST_bullet:
1238: case LIST_dash:
1239: case LIST_hyphen:
1240: case LIST_enum:
1241: md_stack((char)-1);
1242: if (code_blocks || quote_blocks)
1243: list_blocks--;
1244: break;
1245: case LIST_tag:
1246: case LIST_hang:
1247: md_post_D1(n);
1248: break;
1249:
1250: case LIST_column:
1251: if (n->next == NULL)
1252: break;
1253:
1254: /* Calculate the array index of the current column. */
1255:
1256: i = 0;
1257: while ((n = n->prev) != NULL && n->type != ROFFT_HEAD)
1258: i++;
1259:
1260: /*
1261: * If a width was specified for this column,
1262: * subtract what printed, and
1263: * add the same spacing as in mdoc_term.c.
1264: */
1265:
1266: nc = bln->norm->Bl.ncols;
1267: i = i < nc ? strlen(bln->norm->Bl.cols[i]) - outcount +
1268: (nc < 5 ? 4 : nc == 5 ? 3 : 1) : 1;
1269: if (i < 1)
1270: i = 1;
1271: while (i-- > 0)
1272: putchar(' ');
1273:
1274: outflags &= ~MD_spc;
1275: escflags &= ~ESC_FON;
1276: outcount = 0;
1277: break;
1278:
1279: default:
1280: break;
1281: }
1282: }
1283:
1284: static void
1285: md_post_Lb(struct roff_node *n)
1286: {
1287: if (n->sec == SEC_LIBRARY)
1288: outflags |= MD_br;
1289: }
1290:
1.15 schwarze 1291: static void
1292: md_uri(const char *s)
1293: {
1294: while (*s != '\0') {
1295: if (strchr("%()<>", *s) != NULL) {
1296: printf("%%%2.2hhX", *s);
1297: outcount += 3;
1298: } else {
1299: putchar(*s);
1300: outcount++;
1301: }
1302: s++;
1303: }
1304: }
1305:
1.1 schwarze 1306: static int
1307: md_pre_Lk(struct roff_node *n)
1308: {
1.22 ! schwarze 1309: const struct roff_node *link, *descr, *punct;
1.1 schwarze 1310:
1311: if ((link = n->child) == NULL)
1312: return 0;
1313:
1.22 ! schwarze 1314: /* Find beginning of trailing punctuation. */
! 1315: punct = n->last;
! 1316: while (punct != link && punct->flags & NODE_DELIMC)
! 1317: punct = punct->prev;
! 1318: punct = punct->next;
! 1319:
1.16 schwarze 1320: /* Link text. */
1321: descr = link->next;
1.22 ! schwarze 1322: if (descr == punct)
1.16 schwarze 1323: descr = link; /* no text */
1.15 schwarze 1324: md_rawword("[");
1325: outflags &= ~MD_spc;
1326: do {
1327: md_word(descr->string);
1.16 schwarze 1328: descr = descr->next;
1.22 ! schwarze 1329: } while (descr != punct);
1.15 schwarze 1330: outflags &= ~MD_spc;
1.16 schwarze 1331:
1332: /* Link target. */
1.15 schwarze 1333: md_rawword("](");
1334: md_uri(link->string);
1335: outflags &= ~MD_spc;
1336: md_rawword(")");
1.16 schwarze 1337:
1338: /* Trailing punctuation. */
1.22 ! schwarze 1339: while (punct != NULL) {
! 1340: md_word(punct->string);
! 1341: punct = punct->next;
1.16 schwarze 1342: }
1.15 schwarze 1343: return 0;
1344: }
1345:
1346: static int
1347: md_pre_Mt(struct roff_node *n)
1348: {
1349: const struct roff_node *nch;
1.1 schwarze 1350:
1.15 schwarze 1351: md_rawword("[");
1352: outflags &= ~MD_spc;
1353: for (nch = n->child; nch != NULL; nch = nch->next)
1354: md_word(nch->string);
1355: outflags &= ~MD_spc;
1356: md_rawword("](mailto:");
1357: for (nch = n->child; nch != NULL; nch = nch->next) {
1358: md_uri(nch->string);
1359: if (nch->next != NULL) {
1360: putchar(' ');
1.3 schwarze 1361: outcount++;
1362: }
1363: }
1.1 schwarze 1364: outflags &= ~MD_spc;
1.15 schwarze 1365: md_rawword(")");
1.1 schwarze 1366: return 0;
1367: }
1368:
1369: static int
1370: md_pre_Nd(struct roff_node *n)
1371: {
1372: outflags &= ~MD_nl;
1373: outflags |= MD_spc;
1374: md_word("-");
1375: return 1;
1376: }
1377:
1378: static int
1379: md_pre_Nm(struct roff_node *n)
1380: {
1381: switch (n->type) {
1382: case ROFFT_BLOCK:
1383: outflags |= MD_Bk;
1384: md_pre_syn(n);
1385: break;
1386: case ROFFT_HEAD:
1387: case ROFFT_ELEM:
1388: md_pre_raw(n);
1389: break;
1390: default:
1391: break;
1392: }
1393: return 1;
1394: }
1395:
1396: static void
1397: md_post_Nm(struct roff_node *n)
1398: {
1399: switch (n->type) {
1400: case ROFFT_BLOCK:
1401: outflags &= ~MD_Bk;
1402: break;
1403: case ROFFT_HEAD:
1404: case ROFFT_ELEM:
1405: md_post_raw(n);
1406: break;
1407: default:
1408: break;
1409: }
1410: }
1411:
1412: static int
1413: md_pre_No(struct roff_node *n)
1414: {
1415: outflags |= MD_spc_force;
1416: return 1;
1417: }
1418:
1419: static int
1420: md_pre_Ns(struct roff_node *n)
1421: {
1422: outflags &= ~MD_spc;
1423: return 0;
1424: }
1425:
1426: static void
1427: md_post_Pf(struct roff_node *n)
1428: {
1429: if (n->next != NULL && (n->next->flags & NODE_LINE) == 0)
1430: outflags &= ~MD_spc;
1431: }
1432:
1433: static int
1434: md_pre_Pp(struct roff_node *n)
1435: {
1436: outflags |= MD_sp;
1437: return 0;
1438: }
1439:
1440: static int
1441: md_pre_Rs(struct roff_node *n)
1442: {
1443: if (n->sec == SEC_SEE_ALSO)
1444: outflags |= MD_sp;
1445: return 1;
1446: }
1447:
1448: static int
1449: md_pre_Sh(struct roff_node *n)
1450: {
1451: switch (n->type) {
1.5 schwarze 1452: case ROFFT_BLOCK:
1453: if (n->sec == SEC_AUTHORS)
1454: outflags &= ~(MD_An_split | MD_An_nosplit);
1455: break;
1.1 schwarze 1456: case ROFFT_HEAD:
1457: outflags |= MD_sp;
1458: md_rawword(n->tok == MDOC_Sh ? "#" : "##");
1459: break;
1460: case ROFFT_BODY:
1461: outflags |= MD_sp;
1462: break;
1463: default:
1464: break;
1465: }
1466: return 1;
1467: }
1468:
1469: static int
1470: md_pre_Sm(struct roff_node *n)
1471: {
1472: if (n->child == NULL)
1473: outflags ^= MD_Sm;
1474: else if (strcmp("on", n->child->string) == 0)
1475: outflags |= MD_Sm;
1476: else
1477: outflags &= ~MD_Sm;
1478:
1479: if (outflags & MD_Sm)
1480: outflags |= MD_spc;
1481:
1482: return 0;
1483: }
1484:
1485: static int
1486: md_pre_Vt(struct roff_node *n)
1487: {
1488: switch (n->type) {
1489: case ROFFT_BLOCK:
1490: md_pre_syn(n);
1491: return 1;
1492: case ROFFT_BODY:
1493: case ROFFT_ELEM:
1494: md_pre_raw(n);
1495: return 1;
1496: default:
1497: return 0;
1498: }
1499: }
1500:
1501: static void
1502: md_post_Vt(struct roff_node *n)
1503: {
1504: switch (n->type) {
1505: case ROFFT_BODY:
1506: case ROFFT_ELEM:
1507: md_post_raw(n);
1508: break;
1509: default:
1510: break;
1511: }
1512: }
1513:
1514: static int
1515: md_pre_Xr(struct roff_node *n)
1516: {
1517: n = n->child;
1518: if (n == NULL)
1519: return 0;
1520: md_node(n);
1521: n = n->next;
1522: if (n == NULL)
1523: return 0;
1524: outflags &= ~MD_spc;
1525: md_word("(");
1526: md_node(n);
1527: md_word(")");
1528: return 0;
1529: }
1530:
1531: static int
1532: md_pre__T(struct roff_node *n)
1533: {
1.2 schwarze 1534: if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
1.1 schwarze 1535: md_word("\"");
1536: else
1537: md_rawword("*");
1538: outflags &= ~MD_spc;
1539: return 1;
1540: }
1541:
1542: static void
1543: md_post__T(struct roff_node *n)
1544: {
1545: outflags &= ~MD_spc;
1.2 schwarze 1546: if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
1.1 schwarze 1547: md_word("\"");
1548: else
1549: md_rawword("*");
1550: md_post_pc(n);
1551: }
1552:
1553: static int
1554: md_pre_br(struct roff_node *n)
1555: {
1556: outflags |= MD_br;
1557: return 0;
1558: }