1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
|
" Vim syntax support file
" Maintainer: Bram Moolenaar <Bram@vim.org>
" Last Change: 2005 Feb 26
" (modified by David Ne\v{c}as (Yeti) <yeti@physics.muni.cz>)
" (XHTML support by Panagiotis Issaris <takis@lumumba.luc.ac.be>)
" Transform a file into HTML, using the current syntax highlighting.
" Number lines when explicitely requested or when `number' is set
if exists("html_number_lines")
let s:numblines = html_number_lines
else
let s:numblines = &number
endif
" When not in gui we can only guess the colors.
if has("gui_running")
let s:whatterm = "gui"
else
let s:whatterm = "cterm"
if &t_Co == 8
let s:cterm_color0 = "#808080"
let s:cterm_color1 = "#ff6060"
let s:cterm_color2 = "#00ff00"
let s:cterm_color3 = "#ffff00"
let s:cterm_color4 = "#8080ff"
let s:cterm_color5 = "#ff40ff"
let s:cterm_color6 = "#00ffff"
let s:cterm_color7 = "#ffffff"
else
let s:cterm_color0 = "#000000"
let s:cterm_color1 = "#c00000"
let s:cterm_color2 = "#008000"
let s:cterm_color3 = "#804000"
let s:cterm_color4 = "#0000c0"
let s:cterm_color5 = "#c000c0"
let s:cterm_color6 = "#008080"
let s:cterm_color7 = "#c0c0c0"
let s:cterm_color8 = "#808080"
let s:cterm_color9 = "#ff6060"
let s:cterm_color10 = "#00ff00"
let s:cterm_color11 = "#ffff00"
let s:cterm_color12 = "#8080ff"
let s:cterm_color13 = "#ff40ff"
let s:cterm_color14 = "#00ffff"
let s:cterm_color15 = "#ffffff"
endif
endif
" Return good color specification: in GUI no transformation is done, in
" terminal return RGB values of known colors and empty string on unknown
if s:whatterm == "gui"
function! s:HtmlColor(color)
return a:color
endfun
else
function! s:HtmlColor(color)
if exists("s:cterm_color" . a:color)
execute "return s:cterm_color" . a:color
else
return ""
endif
endfun
endif
if !exists("html_use_css")
" Return opening HTML tag for given highlight id
function! s:HtmlOpening(id)
let a = ""
if synIDattr(a:id, "inverse")
" For inverse, we always must set both colors (and exchange them)
let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
let a = a . '<span style="background-color: ' . ( x != "" ? x : s:fgc ) . '">'
let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
let a = a . '<font color="' . ( x != "" ? x : s:bgc ) . '">'
else
let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
if x != "" | let a = a . '<span style="background-color: ' . x . '">' | endif
let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
if x != "" | let a = a . '<font color="' . x . '">' | endif
endif
if synIDattr(a:id, "bold") | let a = a . "<b>" | endif
if synIDattr(a:id, "italic") | let a = a . "<i>" | endif
if synIDattr(a:id, "underline") | let a = a . "<u>" | endif
return a
endfun
" Return closing HTML tag for given highlight id
function s:HtmlClosing(id)
let a = ""
if synIDattr(a:id, "underline") | let a = a . "</u>" | endif
if synIDattr(a:id, "italic") | let a = a . "</i>" | endif
if synIDattr(a:id, "bold") | let a = a . "</b>" | endif
if synIDattr(a:id, "inverse")
let a = a . '</font></span>'
else
let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
if x != "" | let a = a . '</font>' | endif
let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
if x != "" | let a = a . '</span>' | endif
endif
return a
endfun
endif
" Return HTML valid characters enclosed in a span of class style_name with
" unprintable characters expanded and double spaces replaced as necessary.
function! s:HtmlFormat(text, style_name)
" Replace unprintable characters
let formatted = strtrans(a:text)
" Replace the reserved html characters
let formatted = substitute(substitute(substitute(substitute(substitute(formatted, '&', '\&', 'g'), '<', '\<', 'g'), '>', '\>', 'g'), '"', '\"', 'g'), "\x0c", '<hr class="PAGE-BREAK">', 'g')
" Replace double spaces
if ' ' != s:HtmlSpace
let formatted = substitute(formatted, ' ', s:HtmlSpace . s:HtmlSpace, 'g')
endif
" Enclose in a span of class style_name
let formatted = '<span class="' . a:style_name . '">' . formatted . '</span>'
" Add the class to class list if it's not there yet
let s:id = hlID(a:style_name)
if stridx(s:idlist, "," . s:id . ",") == -1
let s:idlist = s:idlist . s:id . ","
endif
return formatted
endfun
" Return CSS style describing given highlight id (can be empty)
function! s:CSS1(id)
let a = ""
if synIDattr(a:id, "inverse")
" For inverse, we always must set both colors (and exchange them)
let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
let a = a . "color: " . ( x != "" ? x : s:bgc ) . "; "
let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
let a = a . "background-color: " . ( x != "" ? x : s:fgc ) . "; "
else
let x = s:HtmlColor(synIDattr(a:id, "fg#", s:whatterm))
if x != "" | let a = a . "color: " . x . "; " | endif
let x = s:HtmlColor(synIDattr(a:id, "bg#", s:whatterm))
if x != "" | let a = a . "background-color: " . x . "; " | endif
endif
if synIDattr(a:id, "bold") | let a = a . "font-weight: bold; " | endif
if synIDattr(a:id, "italic") | let a = a . "font-style: italic; " | endif
if synIDattr(a:id, "underline") | let a = a . "text-decoration: underline; " | endif
return a
endfun
" Figure out proper MIME charset from the 'encoding' option.
if exists("html_use_encoding")
let s:html_encoding = html_use_encoding
else
let s:vim_encoding = &encoding
if s:vim_encoding =~ '^8bit\|^2byte'
let s:vim_encoding = substitute(s:vim_encoding, '^8bit-\|^2byte-', '', '')
endif
if s:vim_encoding == 'latin1'
let s:html_encoding = 'iso-8859-1'
elseif s:vim_encoding =~ "^cp12"
let s:html_encoding = substitute(s:vim_encoding, 'cp', 'windows-', '')
elseif s:vim_encoding == 'sjis'
let s:html_encoding = 'Shift_JIS'
elseif s:vim_encoding == 'euc-cn'
let s:html_encoding = 'GB_2312-80'
elseif s:vim_encoding == 'euc-tw'
let s:html_encoding = ""
elseif s:vim_encoding =~ '^euc\|^iso\|^koi'
let s:html_encoding = substitute(s:vim_encoding, '.*', '\U\0', '')
elseif s:vim_encoding == 'cp949'
let s:html_encoding = 'KS_C_5601-1987'
elseif s:vim_encoding == 'cp936'
let s:html_encoding = 'GBK'
elseif s:vim_encoding =~ '^ucs\|^utf'
let s:html_encoding = 'UTF-8'
else
let s:html_encoding = ""
endif
endif
" Set some options to make it work faster.
" Don't report changes for :substitute, there will be many of them.
let s:old_title = &title
let s:old_icon = &icon
let s:old_et = &l:et
let s:old_report = &report
let s:old_search = @/
set notitle noicon
setlocal et
set report=1000000
" Split window to create a buffer with the HTML file.
let s:orgbufnr = winbufnr(0)
if expand("%") == ""
new Untitled.html
else
new %.html
endif
let s:newwin = winnr()
let s:orgwin = bufwinnr(s:orgbufnr)
set modifiable
%d
let s:old_paste = &paste
set paste
let s:old_magic = &magic
set magic
if exists("use_xhtml")
if s:html_encoding != ""
exe "normal! a<?xml version=\"1.0\" encoding=\"" . s:html_encoding . "\"?>\n\e"
else
exe "normal! a<?xml version=\"1.0\"?>\n\e"
endif
let s:tag_close = '/>'
else
let s:tag_close = '>'
endif
let s:HtmlSpace = ' '
let s:HtmlEndline = ''
if exists("html_no_pre")
let s:HtmlEndline = '<br' . s:tag_close
if exists("use_xhtml")
let s:HtmlSpace = '\ '
else
let s:HtmlSpace = '\ '
endif
endif
" HTML header, with the title and generator ;-). Left free space for the CSS,
" to be filled at the end.
exe "normal! a<html>\n\e"
exe "normal! a<head>\n<title>" . expand("%:p:~") . "</title>\n\e"
exe "normal! a<meta name=\"Generator\" content=\"Vim/" . v:version/100 . "." . v:version %100 . '"' . s:tag_close . "\n\e"
if s:html_encoding != ""
exe "normal! a<meta http-equiv=\"content-type\" content=\"text/html; charset=" . s:html_encoding . '"' . s:tag_close . "\n\e"
endif
if exists("html_use_css")
exe "normal! a<style type=\"text/css\">\n<!--\n-->\n</style>\n\e"
endif
if exists("html_no_pre")
exe "normal! a</head>\n<body>\n\e"
else
exe "normal! a</head>\n<body>\n<pre>\n\e"
endif
exe s:orgwin . "wincmd w"
" List of all id's
let s:idlist = ","
" Loop over all lines in the original text.
" Use html_start_line and html_end_line if they are set.
if exists("html_start_line")
let s:lnum = html_start_line
if s:lnum < 1 || s:lnum > line("$")
let s:lnum = 1
endif
else
let s:lnum = 1
endif
if exists("html_end_line")
let s:end = html_end_line
if s:end < s:lnum || s:end > line("$")
let s:end = line("$")
endif
else
let s:end = line("$")
endif
if has('folding') && !exists('html_ignore_folding')
let s:foldfillchar = &fillchars[matchend(&fillchars, 'fold:')]
if s:foldfillchar == ''
let s:foldfillchar = '-'
endif
endif
let s:difffillchar = &fillchars[matchend(&fillchars, 'diff:')]
if s:difffillchar == ''
let s:difffillchar = '-'
endif
while s:lnum <= s:end
" If there are filler lines for diff mode, show these above the line.
let s:filler = diff_filler(s:lnum)
if s:filler > 0
let s:n = s:filler
while s:n > 0
if s:numblines
" Indent if line numbering is on
let s:new = repeat(' ', strlen(s:end) + 1) . repeat(s:difffillchar, 3)
else
let s:new = repeat(s:difffillchar, 3)
endif
if s:n > 2 && s:n < s:filler && !exists("html_whole_filler")
let s:new = s:new . " " . s:filler . " inserted lines "
let s:n = 2
endif
if !exists("html_no_pre")
" HTML line wrapping is off--go ahead and fill to the margin
let s:new = s:new . repeat(s:difffillchar, &columns - strlen(s:new))
endif
let s:new = s:HtmlFormat(s:new, "DiffDelete")
exe s:newwin . "wincmd w"
exe "normal! a" . s:new . s:HtmlEndline . "\n\e"
exe s:orgwin . "wincmd w"
let s:n = s:n - 1
endwhile
unlet s:n
endif
unlet s:filler
" Start the line with the line number.
if s:numblines
let s:new = repeat(' ', strlen(s:end) - strlen(s:lnum)) . s:lnum
|