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1.26 ! schwarze 1: /* $Id: mdoc_markdown.c,v 1.25 2018/08/16 13:54:06 schwarze Exp $ */
1.1 schwarze 2: /*
1.25 schwarze 3: * Copyright (c) 2017, 2018 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 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:
1.26 ! 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: };
1.26 ! schwarze 228: static const struct md_act *md_act(enum roff_tok);
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:
1.26 ! schwarze 253:
! 254: static const struct md_act *
! 255: md_act(enum roff_tok tok)
! 256: {
! 257: assert(tok >= MDOC_Dd && tok <= MDOC_MAX);
! 258: return md_acts + (tok - MDOC_Dd);
! 259: }
! 260:
1.1 schwarze 261: void
262: markdown_mdoc(void *arg, const struct roff_man *mdoc)
263: {
264: outflags = MD_Sm;
265: md_word(mdoc->meta.title);
266: if (mdoc->meta.msec != NULL) {
267: outflags &= ~MD_spc;
268: md_word("(");
269: md_word(mdoc->meta.msec);
270: md_word(")");
271: }
272: md_word("-");
273: md_word(mdoc->meta.vol);
274: if (mdoc->meta.arch != NULL) {
275: md_word("(");
276: md_word(mdoc->meta.arch);
277: md_word(")");
278: }
279: outflags |= MD_sp;
280:
281: md_nodelist(mdoc->first->child);
282:
283: outflags |= MD_sp;
284: md_word(mdoc->meta.os);
285: md_word("-");
286: md_word(mdoc->meta.date);
287: putchar('\n');
288: }
289:
290: static void
291: md_nodelist(struct roff_node *n)
292: {
293: while (n != NULL) {
294: md_node(n);
295: n = n->next;
296: }
297: }
298:
299: static void
300: md_node(struct roff_node *n)
301: {
302: const struct md_act *act;
303: int cond, process_children;
304:
1.24 schwarze 305: if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
1.1 schwarze 306: return;
307:
308: if (outflags & MD_nonl)
309: outflags &= ~(MD_nl | MD_sp);
310: else if (outflags & MD_spc && n->flags & NODE_LINE)
311: outflags |= MD_nl;
312:
313: act = NULL;
314: cond = 0;
315: process_children = 1;
316: n->flags &= ~NODE_ENDED;
317:
1.18 schwarze 318: if (n->type == ROFFT_TEXT) {
1.1 schwarze 319: if (n->flags & NODE_DELIMC)
320: outflags &= ~(MD_spc | MD_spc_force);
321: else if (outflags & MD_Sm)
322: outflags |= MD_spc_force;
323: md_word(n->string);
324: if (n->flags & NODE_DELIMO)
325: outflags &= ~(MD_spc | MD_spc_force);
326: else if (outflags & MD_Sm)
327: outflags |= MD_spc;
1.18 schwarze 328: } else if (n->tok < ROFF_MAX) {
329: switch (n->tok) {
330: case ROFF_br:
1.19 schwarze 331: process_children = md_pre_br(n);
1.21 schwarze 332: break;
333: case ROFF_sp:
334: process_children = md_pre_Pp(n);
1.19 schwarze 335: break;
1.20 schwarze 336: default:
1.19 schwarze 337: process_children = 0;
1.18 schwarze 338: break;
339: }
340: } else {
1.26 ! schwarze 341: act = md_act(n->tok);
1.1 schwarze 342: cond = act->cond == NULL || (*act->cond)(n);
343: if (cond && act->pre != NULL &&
344: (n->end == ENDBODY_NOT || n->child != NULL))
345: process_children = (*act->pre)(n);
346: }
347:
348: if (process_children && n->child != NULL)
349: md_nodelist(n->child);
350:
351: if (n->flags & NODE_ENDED)
352: return;
353:
354: if (cond && act->post != NULL)
355: (*act->post)(n);
356:
357: if (n->end != ENDBODY_NOT)
358: n->body->flags |= NODE_ENDED;
359: }
360:
361: static const char *
362: md_stack(char c)
363: {
364: static char *stack;
365: static size_t sz;
366: static size_t cur;
367:
368: switch (c) {
369: case '\0':
370: break;
371: case (char)-1:
372: assert(cur);
373: stack[--cur] = '\0';
374: break;
375: default:
376: if (cur + 1 >= sz) {
377: sz += 8;
378: stack = mandoc_realloc(stack, sz);
379: }
380: stack[cur] = c;
381: stack[++cur] = '\0';
382: break;
383: }
384: return stack == NULL ? "" : stack;
385: }
386:
387: /*
388: * Handle vertical and horizontal spacing.
389: */
390: static void
391: md_preword(void)
392: {
1.9 schwarze 393: const char *cp;
394:
1.1 schwarze 395: /*
396: * If a list block is nested inside a code block or a blockquote,
397: * blank lines for paragraph breaks no longer work; instead,
398: * they terminate the list. Work around this markdown issue
399: * by using mere line breaks instead.
400: */
1.8 schwarze 401:
1.1 schwarze 402: if (list_blocks && outflags & MD_sp) {
403: outflags &= ~MD_sp;
404: outflags |= MD_br;
405: }
406:
1.8 schwarze 407: /*
408: * End the old line if requested.
409: * Escape whitespace at the end of the markdown line
410: * such that it won't look like an output line break.
411: */
1.1 schwarze 412:
413: if (outflags & MD_sp)
414: putchar('\n');
415: else if (outflags & MD_br) {
416: putchar(' ');
417: putchar(' ');
1.8 schwarze 418: } else if (outflags & MD_nl && escflags & ESC_EOL)
419: md_named("zwnj");
1.1 schwarze 420:
421: /* Start a new line if necessary. */
422:
423: if (outflags & (MD_nl | MD_br | MD_sp)) {
424: putchar('\n');
1.9 schwarze 425: for (cp = md_stack('\0'); *cp != '\0'; cp++) {
426: putchar(*cp);
427: if (*cp == '>')
428: putchar(' ');
429: }
1.1 schwarze 430: outflags &= ~(MD_nl | MD_br | MD_sp);
431: escflags = ESC_BOL;
432: outcount = 0;
433:
434: /* Handle horizontal spacing. */
435:
436: } else if (outflags & MD_spc) {
437: if (outflags & MD_Bk)
438: fputs(" ", stdout);
439: else
440: putchar(' ');
441: escflags &= ~ESC_FON;
442: outcount++;
443: }
444:
445: outflags &= ~(MD_spc_force | MD_nonl);
446: if (outflags & MD_Sm)
447: outflags |= MD_spc;
448: else
449: outflags &= ~MD_spc;
450: }
451:
452: /*
453: * Print markdown syntax elements.
454: * Can also be used for constant strings when neither escaping
455: * nor delimiter handling is required.
456: */
457: static void
458: md_rawword(const char *s)
459: {
460: md_preword();
461:
1.8 schwarze 462: if (*s == '\0')
1.1 schwarze 463: return;
464:
465: if (escflags & ESC_FON) {
466: escflags &= ~ESC_FON;
467: if (*s == '*' && !code_blocks)
468: fputs("‌", stdout);
469: }
470:
471: while (*s != '\0') {
472: switch(*s) {
473: case '*':
474: if (s[1] == '\0')
475: escflags |= ESC_FON;
476: break;
477: case '[':
478: escflags |= ESC_SQU;
479: break;
480: case ']':
481: escflags |= ESC_HYP;
482: escflags &= ~ESC_SQU;
483: break;
484: default:
485: break;
486: }
487: md_char(*s++);
488: }
1.8 schwarze 489: if (s[-1] == ' ')
490: escflags |= ESC_EOL;
491: else
492: escflags &= ~ESC_EOL;
1.1 schwarze 493: }
494:
495: /*
496: * Print text and mdoc(7) syntax elements.
497: */
498: static void
499: md_word(const char *s)
500: {
501: const char *seq, *prevfont, *currfont, *nextfont;
502: char c;
1.23 schwarze 503: int bs, sz, uc, breakline;
1.1 schwarze 504:
505: /* No spacing before closing delimiters. */
506: if (s[0] != '\0' && s[1] == '\0' &&
507: strchr("!),.:;?]", s[0]) != NULL &&
508: (outflags & MD_spc_force) == 0)
509: outflags &= ~MD_spc;
510:
511: md_preword();
512:
1.8 schwarze 513: if (*s == '\0')
514: return;
515:
1.1 schwarze 516: /* No spacing after opening delimiters. */
517: if ((s[0] == '(' || s[0] == '[') && s[1] == '\0')
518: outflags &= ~MD_spc;
519:
1.23 schwarze 520: breakline = 0;
1.1 schwarze 521: prevfont = currfont = "";
522: while ((c = *s++) != '\0') {
523: bs = 0;
524: switch(c) {
525: case ASCII_NBRSP:
526: if (code_blocks)
527: c = ' ';
528: else {
529: md_named("nbsp");
530: c = '\0';
531: }
532: break;
533: case ASCII_HYPH:
534: bs = escflags & ESC_BOL && !code_blocks;
535: c = '-';
536: break;
537: case ASCII_BREAK:
538: continue;
539: case '#':
540: case '+':
541: case '-':
542: bs = escflags & ESC_BOL && !code_blocks;
543: break;
544: case '(':
545: bs = escflags & ESC_HYP && !code_blocks;
546: break;
547: case ')':
1.14 schwarze 548: bs = escflags & ESC_NUM && !code_blocks;
1.1 schwarze 549: break;
550: case '*':
551: case '[':
552: case '_':
553: case '`':
554: bs = !code_blocks;
555: break;
556: case '.':
557: bs = escflags & ESC_NUM && !code_blocks;
558: break;
559: case '<':
560: if (code_blocks == 0) {
561: md_named("lt");
562: c = '\0';
563: }
564: break;
565: case '=':
566: if (escflags & ESC_BOL && !code_blocks) {
567: md_named("equals");
568: c = '\0';
569: }
570: break;
571: case '>':
572: if (code_blocks == 0) {
573: md_named("gt");
574: c = '\0';
575: }
576: break;
577: case '\\':
578: uc = 0;
579: nextfont = NULL;
580: switch (mandoc_escape(&s, &seq, &sz)) {
581: case ESCAPE_UNICODE:
582: uc = mchars_num2uc(seq + 1, sz - 1);
583: break;
584: case ESCAPE_NUMBERED:
585: uc = mchars_num2char(seq, sz);
586: break;
587: case ESCAPE_SPECIAL:
588: uc = mchars_spec2cp(seq, sz);
589: break;
1.25 schwarze 590: case ESCAPE_DEVICE:
591: md_rawword("markdown");
592: continue;
1.1 schwarze 593: case ESCAPE_FONTBOLD:
594: nextfont = "**";
595: break;
596: case ESCAPE_FONTITALIC:
597: nextfont = "*";
598: break;
599: case ESCAPE_FONTBI:
600: nextfont = "***";
601: break;
602: case ESCAPE_FONT:
603: case ESCAPE_FONTROMAN:
604: nextfont = "";
605: break;
606: case ESCAPE_FONTPREV:
607: nextfont = prevfont;
608: break;
1.23 schwarze 609: case ESCAPE_BREAK:
610: breakline = 1;
611: break;
1.1 schwarze 612: case ESCAPE_NOSPACE:
613: case ESCAPE_SKIPCHAR:
614: case ESCAPE_OVERSTRIKE:
615: /* XXX not implemented */
616: /* FALLTHROUGH */
617: case ESCAPE_ERROR:
618: default:
619: break;
620: }
621: if (nextfont != NULL && !code_blocks) {
622: if (*currfont != '\0') {
623: outflags &= ~MD_spc;
624: md_rawword(currfont);
625: }
626: prevfont = currfont;
627: currfont = nextfont;
628: if (*currfont != '\0') {
629: outflags &= ~MD_spc;
630: md_rawword(currfont);
631: }
632: }
633: if (uc) {
634: if ((uc < 0x20 && uc != 0x09) ||
635: (uc > 0x7E && uc < 0xA0))
636: uc = 0xFFFD;
637: if (code_blocks) {
638: seq = mchars_uc2str(uc);
639: fputs(seq, stdout);
640: outcount += strlen(seq);
641: } else {
642: printf("&#%d;", uc);
643: outcount++;
644: }
645: escflags &= ~ESC_FON;
646: }
647: c = '\0';
648: break;
649: case ']':
650: bs = escflags & ESC_SQU && !code_blocks;
651: escflags |= ESC_HYP;
652: break;
653: default:
654: break;
655: }
656: if (bs)
657: putchar('\\');
658: md_char(c);
1.23 schwarze 659: if (breakline &&
660: (*s == '\0' || *s == ' ' || *s == ASCII_NBRSP)) {
661: printf(" \n");
662: breakline = 0;
663: while (*s == ' ' || *s == ASCII_NBRSP)
664: s++;
665: }
1.1 schwarze 666: }
667: if (*currfont != '\0') {
668: outflags &= ~MD_spc;
669: md_rawword(currfont);
1.8 schwarze 670: } else if (s[-2] == ' ')
671: escflags |= ESC_EOL;
672: else
673: escflags &= ~ESC_EOL;
1.1 schwarze 674: }
675:
676: /*
677: * Print a single HTML named character reference.
678: */
679: static void
680: md_named(const char *s)
681: {
682: printf("&%s;", s);
1.8 schwarze 683: escflags &= ~(ESC_FON | ESC_EOL);
1.1 schwarze 684: outcount++;
685: }
686:
687: /*
688: * Print a single raw character and maintain certain escape flags.
689: */
690: static void
691: md_char(unsigned char c)
692: {
693: if (c != '\0') {
694: putchar(c);
695: if (c == '*')
696: escflags |= ESC_FON;
697: else
698: escflags &= ~ESC_FON;
699: outcount++;
700: }
701: if (c != ']')
702: escflags &= ~ESC_HYP;
703: if (c == ' ' || c == '\t' || c == '>')
704: return;
705: if (isdigit(c) == 0)
706: escflags &= ~ESC_NUM;
707: else if (escflags & ESC_BOL)
708: escflags |= ESC_NUM;
709: escflags &= ~ESC_BOL;
710: }
711:
712: static int
713: md_cond_head(struct roff_node *n)
714: {
715: return n->type == ROFFT_HEAD;
716: }
717:
718: static int
719: md_cond_body(struct roff_node *n)
720: {
721: return n->type == ROFFT_BODY;
722: }
723:
724: static int
725: md_pre_raw(struct roff_node *n)
726: {
727: const char *prefix;
728:
1.26 ! schwarze 729: if ((prefix = md_act(n->tok)->prefix) != NULL) {
1.1 schwarze 730: md_rawword(prefix);
731: outflags &= ~MD_spc;
1.13 schwarze 732: if (*prefix == '`')
733: code_blocks++;
1.1 schwarze 734: }
735: return 1;
736: }
737:
738: static void
739: md_post_raw(struct roff_node *n)
740: {
741: const char *suffix;
742:
1.26 ! schwarze 743: if ((suffix = md_act(n->tok)->suffix) != NULL) {
1.1 schwarze 744: outflags &= ~(MD_spc | MD_nl);
745: md_rawword(suffix);
1.13 schwarze 746: if (*suffix == '`')
747: code_blocks--;
1.1 schwarze 748: }
749: }
750:
751: static int
752: md_pre_word(struct roff_node *n)
753: {
754: const char *prefix;
755:
1.26 ! schwarze 756: if ((prefix = md_act(n->tok)->prefix) != NULL) {
1.1 schwarze 757: md_word(prefix);
758: outflags &= ~MD_spc;
759: }
760: return 1;
761: }
762:
763: static void
764: md_post_word(struct roff_node *n)
765: {
766: const char *suffix;
767:
1.26 ! schwarze 768: if ((suffix = md_act(n->tok)->suffix) != NULL) {
1.1 schwarze 769: outflags &= ~(MD_spc | MD_nl);
770: md_word(suffix);
771: }
772: }
773:
774: static void
775: md_post_pc(struct roff_node *n)
776: {
777: md_post_raw(n);
778: if (n->parent->tok != MDOC_Rs)
779: return;
780: if (n->next != NULL) {
781: md_word(",");
782: if (n->prev != NULL &&
783: n->prev->tok == n->tok &&
784: n->next->tok == n->tok)
785: md_word("and");
786: } else {
787: md_word(".");
788: outflags |= MD_nl;
789: }
790: }
791:
792: static int
793: md_pre_skip(struct roff_node *n)
794: {
795: return 0;
796: }
797:
798: static void
799: md_pre_syn(struct roff_node *n)
800: {
801: if (n->prev == NULL || ! (n->flags & NODE_SYNPRETTY))
802: return;
803:
804: if (n->prev->tok == n->tok &&
805: n->tok != MDOC_Ft &&
806: n->tok != MDOC_Fo &&
807: n->tok != MDOC_Fn) {
808: outflags |= MD_br;
809: return;
810: }
811:
812: switch (n->prev->tok) {
813: case MDOC_Fd:
814: case MDOC_Fn:
815: case MDOC_Fo:
816: case MDOC_In:
817: case MDOC_Vt:
818: outflags |= MD_sp;
819: break;
820: case MDOC_Ft:
821: if (n->tok != MDOC_Fn && n->tok != MDOC_Fo) {
822: outflags |= MD_sp;
823: break;
824: }
825: /* FALLTHROUGH */
826: default:
827: outflags |= MD_br;
828: break;
829: }
830: }
831:
832: static int
1.5 schwarze 833: md_pre_An(struct roff_node *n)
834: {
835: switch (n->norm->An.auth) {
836: case AUTH_split:
837: outflags &= ~MD_An_nosplit;
838: outflags |= MD_An_split;
839: return 0;
840: case AUTH_nosplit:
841: outflags &= ~MD_An_split;
842: outflags |= MD_An_nosplit;
843: return 0;
844: default:
845: if (outflags & MD_An_split)
846: outflags |= MD_br;
847: else if (n->sec == SEC_AUTHORS &&
848: ! (outflags & MD_An_nosplit))
849: outflags |= MD_An_split;
850: return 1;
851: }
852: }
853:
854: static int
1.1 schwarze 855: md_pre_Ap(struct roff_node *n)
856: {
857: outflags &= ~MD_spc;
858: md_word("'");
859: outflags &= ~MD_spc;
860: return 0;
861: }
862:
863: static int
864: md_pre_Bd(struct roff_node *n)
865: {
866: switch (n->norm->Bd.type) {
867: case DISP_unfilled:
868: case DISP_literal:
869: return md_pre_Dl(n);
870: default:
871: return md_pre_D1(n);
872: }
873: }
874:
875: static int
876: md_pre_Bk(struct roff_node *n)
877: {
878: switch (n->type) {
879: case ROFFT_BLOCK:
880: return 1;
881: case ROFFT_BODY:
882: outflags |= MD_Bk;
883: return 1;
884: default:
885: return 0;
886: }
887: }
888:
889: static void
890: md_post_Bk(struct roff_node *n)
891: {
892: if (n->type == ROFFT_BODY)
893: outflags &= ~MD_Bk;
894: }
895:
896: static int
897: md_pre_Bl(struct roff_node *n)
898: {
899: n->norm->Bl.count = 0;
900: if (n->norm->Bl.type == LIST_column)
901: md_pre_Dl(n);
902: outflags |= MD_sp;
903: return 1;
904: }
905:
906: static void
907: md_post_Bl(struct roff_node *n)
908: {
909: n->norm->Bl.count = 0;
910: if (n->norm->Bl.type == LIST_column)
911: md_post_D1(n);
912: outflags |= MD_sp;
913: }
914:
915: static int
916: md_pre_D1(struct roff_node *n)
917: {
918: /*
919: * Markdown blockquote syntax does not work inside code blocks.
920: * The best we can do is fall back to another nested code block.
921: */
922: if (code_blocks) {
923: md_stack('\t');
924: code_blocks++;
925: } else {
926: md_stack('>');
927: quote_blocks++;
928: }
929: outflags |= MD_sp;
930: return 1;
931: }
932:
933: static void
934: md_post_D1(struct roff_node *n)
935: {
936: md_stack((char)-1);
937: if (code_blocks)
938: code_blocks--;
939: else
940: quote_blocks--;
941: outflags |= MD_sp;
942: }
943:
944: static int
945: md_pre_Dl(struct roff_node *n)
946: {
947: /*
948: * Markdown code block syntax does not work inside blockquotes.
949: * The best we can do is fall back to another nested blockquote.
950: */
951: if (quote_blocks) {
952: md_stack('>');
953: quote_blocks++;
954: } else {
955: md_stack('\t');
956: code_blocks++;
957: }
958: outflags |= MD_sp;
959: return 1;
960: }
961:
962: static int
963: md_pre_En(struct roff_node *n)
964: {
965: if (n->norm->Es == NULL ||
966: n->norm->Es->child == NULL)
967: return 1;
968:
969: md_word(n->norm->Es->child->string);
970: outflags &= ~MD_spc;
971: return 1;
972: }
973:
974: static void
975: md_post_En(struct roff_node *n)
976: {
977: if (n->norm->Es == NULL ||
978: n->norm->Es->child == NULL ||
979: n->norm->Es->child->next == NULL)
980: return;
981:
982: outflags &= ~MD_spc;
983: md_word(n->norm->Es->child->next->string);
984: }
985:
986: static int
987: md_pre_Eo(struct roff_node *n)
988: {
989: if (n->end == ENDBODY_NOT &&
990: n->parent->head->child == NULL &&
991: n->child != NULL &&
992: n->child->end != ENDBODY_NOT)
993: md_preword();
994: else if (n->end != ENDBODY_NOT ? n->child != NULL :
995: n->parent->head->child != NULL && (n->child != NULL ||
996: (n->parent->tail != NULL && n->parent->tail->child != NULL)))
997: outflags &= ~(MD_spc | MD_nl);
998: return 1;
999: }
1000:
1001: static void
1002: md_post_Eo(struct roff_node *n)
1003: {
1004: if (n->end != ENDBODY_NOT) {
1005: outflags |= MD_spc;
1006: return;
1007: }
1008:
1.7 schwarze 1009: if (n->child == NULL && n->parent->head->child == NULL)
1010: return;
1.1 schwarze 1011:
1.7 schwarze 1012: if (n->parent->tail != NULL && n->parent->tail->child != NULL)
1.1 schwarze 1013: outflags &= ~MD_spc;
1.7 schwarze 1014: else
1.1 schwarze 1015: outflags |= MD_spc;
1016: }
1017:
1018: static int
1019: md_pre_Fa(struct roff_node *n)
1020: {
1021: int am_Fa;
1022:
1023: am_Fa = n->tok == MDOC_Fa;
1024:
1025: if (am_Fa)
1026: n = n->child;
1027:
1028: while (n != NULL) {
1029: md_rawword("*");
1030: outflags &= ~MD_spc;
1031: md_node(n);
1032: outflags &= ~MD_spc;
1033: md_rawword("*");
1034: if ((n = n->next) != NULL)
1035: md_word(",");
1036: }
1037: return 0;
1038: }
1039:
1040: static void
1041: md_post_Fa(struct roff_node *n)
1042: {
1043: if (n->next != NULL && n->next->tok == MDOC_Fa)
1044: md_word(",");
1045: }
1046:
1047: static int
1048: md_pre_Fd(struct roff_node *n)
1049: {
1050: md_pre_syn(n);
1051: md_pre_raw(n);
1052: return 1;
1053: }
1054:
1055: static void
1056: md_post_Fd(struct roff_node *n)
1057: {
1058: md_post_raw(n);
1059: outflags |= MD_br;
1.6 schwarze 1060: }
1061:
1062: static void
1063: md_post_Fl(struct roff_node *n)
1064: {
1065: md_post_raw(n);
1066: if (n->child == NULL && n->next != NULL &&
1067: n->next->type != ROFFT_TEXT && !(n->next->flags & NODE_LINE))
1068: outflags &= ~MD_spc;
1.1 schwarze 1069: }
1070:
1071: static int
1072: md_pre_Fn(struct roff_node *n)
1073: {
1074: md_pre_syn(n);
1075:
1076: if ((n = n->child) == NULL)
1077: return 0;
1078:
1079: md_rawword("**");
1080: outflags &= ~MD_spc;
1081: md_node(n);
1082: outflags &= ~MD_spc;
1083: md_rawword("**");
1084: outflags &= ~MD_spc;
1085: md_word("(");
1086:
1087: if ((n = n->next) != NULL)
1088: md_pre_Fa(n);
1089: return 0;
1090: }
1091:
1092: static void
1093: md_post_Fn(struct roff_node *n)
1094: {
1095: md_word(")");
1096: if (n->flags & NODE_SYNPRETTY) {
1097: md_word(";");
1098: outflags |= MD_sp;
1099: }
1100: }
1101:
1102: static int
1103: md_pre_Fo(struct roff_node *n)
1104: {
1105: switch (n->type) {
1106: case ROFFT_BLOCK:
1107: md_pre_syn(n);
1108: break;
1109: case ROFFT_HEAD:
1110: if (n->child == NULL)
1111: return 0;
1112: md_pre_raw(n);
1113: break;
1114: case ROFFT_BODY:
1115: outflags &= ~(MD_spc | MD_nl);
1116: md_word("(");
1117: break;
1118: default:
1119: break;
1120: }
1121: return 1;
1122: }
1123:
1124: static void
1125: md_post_Fo(struct roff_node *n)
1126: {
1127: switch (n->type) {
1128: case ROFFT_HEAD:
1129: if (n->child != NULL)
1130: md_post_raw(n);
1131: break;
1132: case ROFFT_BODY:
1133: md_post_Fn(n);
1134: break;
1135: default:
1136: break;
1137: }
1138: }
1139:
1140: static int
1141: md_pre_In(struct roff_node *n)
1142: {
1143: if (n->flags & NODE_SYNPRETTY) {
1144: md_pre_syn(n);
1.4 schwarze 1145: md_rawword("**");
1.1 schwarze 1146: outflags &= ~MD_spc;
1147: md_word("#include <");
1148: } else {
1149: md_word("<");
1150: outflags &= ~MD_spc;
1.4 schwarze 1151: md_rawword("*");
1.1 schwarze 1152: }
1.4 schwarze 1153: outflags &= ~MD_spc;
1.1 schwarze 1154: return 1;
1155: }
1156:
1157: static void
1158: md_post_In(struct roff_node *n)
1159: {
1160: if (n->flags & NODE_SYNPRETTY) {
1161: outflags &= ~MD_spc;
1.4 schwarze 1162: md_rawword(">**");
1.1 schwarze 1163: outflags |= MD_nl;
1164: } else {
1165: outflags &= ~MD_spc;
1.4 schwarze 1166: md_rawword("*>");
1.1 schwarze 1167: }
1168: }
1169:
1170: static int
1171: md_pre_It(struct roff_node *n)
1172: {
1173: struct roff_node *bln;
1174:
1175: switch (n->type) {
1176: case ROFFT_BLOCK:
1177: return 1;
1178:
1179: case ROFFT_HEAD:
1180: bln = n->parent->parent;
1.10 schwarze 1181: if (bln->norm->Bl.comp == 0 &&
1182: bln->norm->Bl.type != LIST_column)
1.1 schwarze 1183: outflags |= MD_sp;
1184: outflags |= MD_nl;
1185:
1186: switch (bln->norm->Bl.type) {
1187: case LIST_item:
1188: outflags |= MD_br;
1189: return 0;
1190: case LIST_inset:
1191: case LIST_diag:
1192: case LIST_ohang:
1193: outflags |= MD_br;
1194: return 1;
1195: case LIST_tag:
1196: case LIST_hang:
1197: outflags |= MD_sp;
1198: return 1;
1199: case LIST_bullet:
1200: md_rawword("*\t");
1201: break;
1202: case LIST_dash:
1203: case LIST_hyphen:
1204: md_rawword("-\t");
1205: break;
1206: case LIST_enum:
1207: md_preword();
1.11 schwarze 1208: if (bln->norm->Bl.count < 99)
1209: bln->norm->Bl.count++;
1210: printf("%d.\t", bln->norm->Bl.count);
1.1 schwarze 1211: escflags &= ~ESC_FON;
1212: break;
1.10 schwarze 1213: case LIST_column:
1214: outflags |= MD_br;
1215: return 0;
1.1 schwarze 1216: default:
1217: return 0;
1218: }
1219: outflags &= ~MD_spc;
1220: outflags |= MD_nonl;
1221: outcount = 0;
1222: md_stack('\t');
1223: if (code_blocks || quote_blocks)
1224: list_blocks++;
1225: return 0;
1226:
1227: case ROFFT_BODY:
1228: bln = n->parent->parent;
1229: switch (bln->norm->Bl.type) {
1230: case LIST_ohang:
1231: outflags |= MD_br;
1232: break;
1233: case LIST_tag:
1234: case LIST_hang:
1235: md_pre_D1(n);
1236: break;
1237: default:
1238: break;
1239: }
1240: return 1;
1241:
1242: default:
1243: return 0;
1244: }
1245: }
1246:
1247: static void
1248: md_post_It(struct roff_node *n)
1249: {
1250: struct roff_node *bln;
1251: int i, nc;
1252:
1253: if (n->type != ROFFT_BODY)
1254: return;
1255:
1256: bln = n->parent->parent;
1257: switch (bln->norm->Bl.type) {
1258: case LIST_bullet:
1259: case LIST_dash:
1260: case LIST_hyphen:
1261: case LIST_enum:
1262: md_stack((char)-1);
1263: if (code_blocks || quote_blocks)
1264: list_blocks--;
1265: break;
1266: case LIST_tag:
1267: case LIST_hang:
1268: md_post_D1(n);
1269: break;
1270:
1271: case LIST_column:
1272: if (n->next == NULL)
1273: break;
1274:
1275: /* Calculate the array index of the current column. */
1276:
1277: i = 0;
1278: while ((n = n->prev) != NULL && n->type != ROFFT_HEAD)
1279: i++;
1280:
1281: /*
1282: * If a width was specified for this column,
1283: * subtract what printed, and
1284: * add the same spacing as in mdoc_term.c.
1285: */
1286:
1287: nc = bln->norm->Bl.ncols;
1288: i = i < nc ? strlen(bln->norm->Bl.cols[i]) - outcount +
1289: (nc < 5 ? 4 : nc == 5 ? 3 : 1) : 1;
1290: if (i < 1)
1291: i = 1;
1292: while (i-- > 0)
1293: putchar(' ');
1294:
1295: outflags &= ~MD_spc;
1296: escflags &= ~ESC_FON;
1297: outcount = 0;
1298: break;
1299:
1300: default:
1301: break;
1302: }
1303: }
1304:
1305: static void
1306: md_post_Lb(struct roff_node *n)
1307: {
1308: if (n->sec == SEC_LIBRARY)
1309: outflags |= MD_br;
1310: }
1311:
1.15 schwarze 1312: static void
1313: md_uri(const char *s)
1314: {
1315: while (*s != '\0') {
1316: if (strchr("%()<>", *s) != NULL) {
1317: printf("%%%2.2hhX", *s);
1318: outcount += 3;
1319: } else {
1320: putchar(*s);
1321: outcount++;
1322: }
1323: s++;
1324: }
1325: }
1326:
1.1 schwarze 1327: static int
1328: md_pre_Lk(struct roff_node *n)
1329: {
1.22 schwarze 1330: const struct roff_node *link, *descr, *punct;
1.1 schwarze 1331:
1332: if ((link = n->child) == NULL)
1333: return 0;
1334:
1.22 schwarze 1335: /* Find beginning of trailing punctuation. */
1336: punct = n->last;
1337: while (punct != link && punct->flags & NODE_DELIMC)
1338: punct = punct->prev;
1339: punct = punct->next;
1340:
1.16 schwarze 1341: /* Link text. */
1342: descr = link->next;
1.22 schwarze 1343: if (descr == punct)
1.16 schwarze 1344: descr = link; /* no text */
1.15 schwarze 1345: md_rawword("[");
1346: outflags &= ~MD_spc;
1347: do {
1348: md_word(descr->string);
1.16 schwarze 1349: descr = descr->next;
1.22 schwarze 1350: } while (descr != punct);
1.15 schwarze 1351: outflags &= ~MD_spc;
1.16 schwarze 1352:
1353: /* Link target. */
1.15 schwarze 1354: md_rawword("](");
1355: md_uri(link->string);
1356: outflags &= ~MD_spc;
1357: md_rawword(")");
1.16 schwarze 1358:
1359: /* Trailing punctuation. */
1.22 schwarze 1360: while (punct != NULL) {
1361: md_word(punct->string);
1362: punct = punct->next;
1.16 schwarze 1363: }
1.15 schwarze 1364: return 0;
1365: }
1366:
1367: static int
1368: md_pre_Mt(struct roff_node *n)
1369: {
1370: const struct roff_node *nch;
1.1 schwarze 1371:
1.15 schwarze 1372: md_rawword("[");
1373: outflags &= ~MD_spc;
1374: for (nch = n->child; nch != NULL; nch = nch->next)
1375: md_word(nch->string);
1376: outflags &= ~MD_spc;
1377: md_rawword("](mailto:");
1378: for (nch = n->child; nch != NULL; nch = nch->next) {
1379: md_uri(nch->string);
1380: if (nch->next != NULL) {
1381: putchar(' ');
1.3 schwarze 1382: outcount++;
1383: }
1384: }
1.1 schwarze 1385: outflags &= ~MD_spc;
1.15 schwarze 1386: md_rawword(")");
1.1 schwarze 1387: return 0;
1388: }
1389:
1390: static int
1391: md_pre_Nd(struct roff_node *n)
1392: {
1393: outflags &= ~MD_nl;
1394: outflags |= MD_spc;
1395: md_word("-");
1396: return 1;
1397: }
1398:
1399: static int
1400: md_pre_Nm(struct roff_node *n)
1401: {
1402: switch (n->type) {
1403: case ROFFT_BLOCK:
1404: outflags |= MD_Bk;
1405: md_pre_syn(n);
1406: break;
1407: case ROFFT_HEAD:
1408: case ROFFT_ELEM:
1409: md_pre_raw(n);
1410: break;
1411: default:
1412: break;
1413: }
1414: return 1;
1415: }
1416:
1417: static void
1418: md_post_Nm(struct roff_node *n)
1419: {
1420: switch (n->type) {
1421: case ROFFT_BLOCK:
1422: outflags &= ~MD_Bk;
1423: break;
1424: case ROFFT_HEAD:
1425: case ROFFT_ELEM:
1426: md_post_raw(n);
1427: break;
1428: default:
1429: break;
1430: }
1431: }
1432:
1433: static int
1434: md_pre_No(struct roff_node *n)
1435: {
1436: outflags |= MD_spc_force;
1437: return 1;
1438: }
1439:
1440: static int
1441: md_pre_Ns(struct roff_node *n)
1442: {
1443: outflags &= ~MD_spc;
1444: return 0;
1445: }
1446:
1447: static void
1448: md_post_Pf(struct roff_node *n)
1449: {
1450: if (n->next != NULL && (n->next->flags & NODE_LINE) == 0)
1451: outflags &= ~MD_spc;
1452: }
1453:
1454: static int
1455: md_pre_Pp(struct roff_node *n)
1456: {
1457: outflags |= MD_sp;
1458: return 0;
1459: }
1460:
1461: static int
1462: md_pre_Rs(struct roff_node *n)
1463: {
1464: if (n->sec == SEC_SEE_ALSO)
1465: outflags |= MD_sp;
1466: return 1;
1467: }
1468:
1469: static int
1470: md_pre_Sh(struct roff_node *n)
1471: {
1472: switch (n->type) {
1.5 schwarze 1473: case ROFFT_BLOCK:
1474: if (n->sec == SEC_AUTHORS)
1475: outflags &= ~(MD_An_split | MD_An_nosplit);
1476: break;
1.1 schwarze 1477: case ROFFT_HEAD:
1478: outflags |= MD_sp;
1479: md_rawword(n->tok == MDOC_Sh ? "#" : "##");
1480: break;
1481: case ROFFT_BODY:
1482: outflags |= MD_sp;
1483: break;
1484: default:
1485: break;
1486: }
1487: return 1;
1488: }
1489:
1490: static int
1491: md_pre_Sm(struct roff_node *n)
1492: {
1493: if (n->child == NULL)
1494: outflags ^= MD_Sm;
1495: else if (strcmp("on", n->child->string) == 0)
1496: outflags |= MD_Sm;
1497: else
1498: outflags &= ~MD_Sm;
1499:
1500: if (outflags & MD_Sm)
1501: outflags |= MD_spc;
1502:
1503: return 0;
1504: }
1505:
1506: static int
1507: md_pre_Vt(struct roff_node *n)
1508: {
1509: switch (n->type) {
1510: case ROFFT_BLOCK:
1511: md_pre_syn(n);
1512: return 1;
1513: case ROFFT_BODY:
1514: case ROFFT_ELEM:
1515: md_pre_raw(n);
1516: return 1;
1517: default:
1518: return 0;
1519: }
1520: }
1521:
1522: static void
1523: md_post_Vt(struct roff_node *n)
1524: {
1525: switch (n->type) {
1526: case ROFFT_BODY:
1527: case ROFFT_ELEM:
1528: md_post_raw(n);
1529: break;
1530: default:
1531: break;
1532: }
1533: }
1534:
1535: static int
1536: md_pre_Xr(struct roff_node *n)
1537: {
1538: n = n->child;
1539: if (n == NULL)
1540: return 0;
1541: md_node(n);
1542: n = n->next;
1543: if (n == NULL)
1544: return 0;
1545: outflags &= ~MD_spc;
1546: md_word("(");
1547: md_node(n);
1548: md_word(")");
1549: return 0;
1550: }
1551:
1552: static int
1553: md_pre__T(struct roff_node *n)
1554: {
1.2 schwarze 1555: if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
1.1 schwarze 1556: md_word("\"");
1557: else
1558: md_rawword("*");
1559: outflags &= ~MD_spc;
1560: return 1;
1561: }
1562:
1563: static void
1564: md_post__T(struct roff_node *n)
1565: {
1566: outflags &= ~MD_spc;
1.2 schwarze 1567: if (n->parent->tok == MDOC_Rs && n->parent->norm->Rs.quote_T)
1.1 schwarze 1568: md_word("\"");
1569: else
1570: md_rawword("*");
1571: md_post_pc(n);
1572: }
1573:
1574: static int
1575: md_pre_br(struct roff_node *n)
1576: {
1577: outflags |= MD_br;
1578: return 0;
1579: }