-
Notifications
You must be signed in to change notification settings - Fork 0
/
html.ml
144 lines (135 loc) · 8.53 KB
/
html.ml
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
open Render_info
open Tex
open Util
exception Too_difficult_for_html
type context = CTX_NORMAL | CTX_IT | CTX_RM
type conservativeness_t = CONSERVATIVE | MODERATE | LIBERAL
let conservativeness = ref CONSERVATIVE
let html_liberal () = conservativeness := LIBERAL
let html_moderate () = if !conservativeness = CONSERVATIVE then conservativeness := MODERATE else ()
let new_ctx = function
FONTFORCE_IT -> CTX_IT
| FONTFORCE_RM -> CTX_RM
let font_render lit = function
(_, FONT_UFH) -> lit
| (_, FONT_UF) -> lit
| (CTX_IT,FONT_RTI) -> raise Too_difficult_for_html
| (_, FONT_RTI) -> lit
| (CTX_IT,FONT_RM) -> "<i>"^lit^"</i>"
| (_, FONT_RM) -> lit
| (CTX_RM,FONT_IT) -> lit
| (_, FONT_IT) -> "<i>"^lit^"</i>"
let rec html_render_flat ctx = function
TEX_LITERAL (HTMLABLE (ft,_,sh))::r -> (html_liberal (); (font_render sh (ctx,ft))^html_render_flat ctx r)
| TEX_LITERAL (HTMLABLEC(ft,_,sh))::r -> (font_render sh (ctx,ft))^html_render_flat ctx r
| TEX_LITERAL (MHTMLABLEC(ft,_,sh,_,_))::r -> (font_render sh (ctx,ft))^html_render_flat ctx r
| TEX_LITERAL (HTMLABLEM(ft,_,sh))::r -> (html_moderate(); (font_render sh (ctx,ft))^html_render_flat ctx r)
| TEX_LITERAL (HTMLABLE_BIG (_,sh))::r -> (html_liberal (); sh^html_render_flat ctx r)
| TEX_FUN1hl (_,(f1,f2),a)::r -> f1^(html_render_flat ctx [a])^f2^html_render_flat ctx r
| TEX_FUN1hf (_,ff,a)::r -> (html_render_flat (new_ctx ff) [a])^html_render_flat ctx r
| TEX_DECLh (_,ff,a)::r -> (html_render_flat (new_ctx ff) a)^html_render_flat ctx r
| TEX_CURLY ls::r -> html_render_flat ctx (ls @ r)
| TEX_DQ (a,b)::r -> (html_liberal ();
let bs = html_render_flat ctx [b] in match html_render_size ctx a with
true, s -> raise Too_difficult_for_html
| false, s -> s^"<sub>"^bs^"</sub>")^html_render_flat ctx r
| TEX_UQ (a,b)::r -> (html_liberal ();
let bs = html_render_flat ctx [b] in match html_render_size ctx a with
true, s -> raise Too_difficult_for_html
| false, s -> s^"<sup>"^bs^"</sup>")^html_render_flat ctx r
| TEX_FQ (a,b,c)::r -> (html_liberal ();
(let bs = html_render_flat ctx [b] in let cs = html_render_flat ctx [c] in
match html_render_size ctx a with
true, s -> raise Too_difficult_for_html
| false, s -> s^"<sub>"^bs^"</sub><sup>"^cs^"</sup>")^html_render_flat ctx r)
| TEX_DQN (a)::r -> (html_liberal ();
let bs = html_render_flat ctx [a] in "<sub>"^bs^"</sub>")^html_render_flat ctx r
| TEX_UQN (a)::r -> (html_liberal ();
let bs = html_render_flat ctx [a] in "<sup>"^bs^"</sup>")^html_render_flat ctx r
| TEX_FQN (a,b)::r -> (html_liberal ();
(let bs = html_render_flat ctx [a] in let cs = html_render_flat ctx [b] in "<sub>"^bs^"</sub><sup>"^cs^"</sup>")^html_render_flat ctx r)
| TEX_BOX (_,s)::r -> s^html_render_flat ctx r
| TEX_LITERAL (TEX_ONLY _)::_ -> raise Too_difficult_for_html
| TEX_FUN1 _::_ -> raise Too_difficult_for_html
| TEX_FUN1nb _::_ -> raise Too_difficult_for_html
| TEX_FUN2 _::_ -> raise Too_difficult_for_html
| TEX_FUN2nb _::_ -> raise Too_difficult_for_html
| TEX_FUN2h _::_ -> raise Too_difficult_for_html
| TEX_FUN2sq _::_ -> raise Too_difficult_for_html
| TEX_INFIX _::_ -> raise Too_difficult_for_html
| TEX_INFIXh _::_ -> raise Too_difficult_for_html
| TEX_MATRIX _::_ -> raise Too_difficult_for_html
| TEX_LR _::_ -> raise Too_difficult_for_html
| TEX_BIG _::_ -> raise Too_difficult_for_html
| [] -> ""
and html_render_size ctx = function
TEX_LITERAL (HTMLABLE_BIG (_,sh)) -> true,sh
| x -> false,html_render_flat ctx [x]
let rec html_render_deep ctx = function
TEX_LITERAL (HTMLABLE (ft,_,sh))::r -> (html_liberal (); ("",(font_render sh (ctx,ft)),"")::html_render_deep ctx r)
| TEX_LITERAL (HTMLABLEM(ft,_,sh))::r -> (html_moderate(); ("",(font_render sh (ctx,ft)),"")::html_render_deep ctx r)
| TEX_LITERAL (HTMLABLEC(ft,_,sh))::r -> ("",(font_render sh (ctx,ft)),"")::html_render_deep ctx r
| TEX_LITERAL (MHTMLABLEC(ft,_,sh,_,_))::r -> ("",(font_render sh (ctx,ft)),"")::html_render_deep ctx r
| TEX_LITERAL (HTMLABLE_BIG (_,sh))::r -> (html_liberal (); ("",sh,"")::html_render_deep ctx r)
| TEX_FUN2h (_,f,a,b)::r -> (html_liberal (); (f a b)::html_render_deep ctx r)
| TEX_INFIXh (_,f,a,b)::r -> (html_liberal (); (f a b)::html_render_deep ctx r)
| TEX_CURLY ls::r -> html_render_deep ctx (ls @ r)
| TEX_DQ (a,b)::r -> (let bs = html_render_flat ctx [b] in match html_render_size ctx a with
true, s -> "","<span style='font-size: x-large; font-family: serif;'>"^s^"</span>",bs
| false, s -> "",(s^"<sub>"^bs^"</sub>"),"")::html_render_deep ctx r
| TEX_UQ (a,b)::r -> (let bs = html_render_flat ctx [b] in match html_render_size ctx a with
true, s -> bs,"<span style='font-size: x-large; font-family: serif;'>"^s^"</span>",""
| false, s -> "",(s^"<sup>"^bs^"</sup>"),"")::html_render_deep ctx r
| TEX_FQ (a,b,c)::r -> (html_liberal ();
(let bs = html_render_flat ctx [b] in let cs = html_render_flat ctx [c] in
match html_render_size ctx a with
true, s -> (cs,"<span style='font-size: x-large; font-family: serif;'>"^s^"</span>",bs)
| false, s -> ("",(s^"<sub>"^bs^"</sub><sup>"^cs^"</sup>"),""))::html_render_deep ctx r)
| TEX_DQN (a)::r -> (let bs = html_render_flat ctx [a] in "",("<sub>"^bs^"</sub>"),"")::html_render_deep ctx r
| TEX_UQN (a)::r -> (let bs = html_render_flat ctx [a] in "",("<sup>"^bs^"</sup>"),"")::html_render_deep ctx r
| TEX_FQN (a,b)::r -> (html_liberal ();
(let bs = html_render_flat ctx [a] in let cs = html_render_flat ctx [b] in
("",("<sub>"^bs^"</sub><sup>"^cs^"</sup>"),""))::html_render_deep ctx r)
| TEX_FUN1hl (_,(f1,f2),a)::r -> ("",f1,"")::(html_render_deep ctx [a]) @ ("",f2,"")::html_render_deep ctx r
| TEX_FUN1hf (_,ff,a)::r -> (html_render_deep (new_ctx ff) [a]) @ html_render_deep ctx r
| TEX_DECLh (_,ff,a)::r -> (html_render_deep (new_ctx ff) a) @ html_render_deep ctx r
| TEX_BOX (_,s)::r -> ("",s,"")::html_render_deep ctx r
| TEX_LITERAL (TEX_ONLY _)::_ -> raise Too_difficult_for_html
| TEX_FUN1 _::_ -> raise Too_difficult_for_html
| TEX_FUN1nb _::_ -> raise Too_difficult_for_html
| TEX_FUN2 _::_ -> raise Too_difficult_for_html
| TEX_FUN2nb _::_ -> raise Too_difficult_for_html
| TEX_FUN2sq _::_ -> raise Too_difficult_for_html
| TEX_INFIX _::_ -> raise Too_difficult_for_html
| TEX_MATRIX _::_ -> raise Too_difficult_for_html
| TEX_LR _::_ -> raise Too_difficult_for_html
| TEX_BIG _::_ -> raise Too_difficult_for_html
| [] -> []
let rec html_render_table = function
sf,u,d,("",a,"")::("",b,"")::r -> html_render_table (sf,u,d,(("",a^b,"")::r))
| sf,u,d,(("",a,"") as c)::r -> html_render_table (c::sf,u,d,r)
| sf,u,d,((_,a,"") as c)::r -> html_render_table (c::sf,true,d,r)
| sf,u,d,(("",a,_) as c)::r -> html_render_table (c::sf,u,true,r)
| sf,u,d,((_,a,_) as c)::r -> html_render_table (c::sf,true,true,r)
| sf,false,false,[] -> mapjoin (function (u,m,d) -> m) (List.rev sf)
| sf,true,false,[] -> let ustr,mstr = List.fold_left (fun (us,ms) (u,m,d) -> (us^"<td>"^u^"</td>",ms^"<td>"^u^"</td>"))
("","") (List.rev sf) in
"\n<table>\n" ^
"\t\t<tr style='text-align: center; vertical-align: bottom;'>" ^ ustr ^ "</tr>\n" ^
"\t\t<tr style='text-align: center;'>" ^ mstr ^ "</tr>\n" ^
"</table>\n"
| sf,false,true,[] -> let mstr,dstr = List.fold_left (fun (ms,ds) (u,m,d) -> (ms^"<td>"^m^"</td>",ds^"<td>"^d^"</td>"))
("","") (List.rev sf) in
"\n<table>\n" ^
"\t\t<tr style='text-align: center;'>" ^ mstr ^ "</tr>\n" ^
"\t\t<tr style='text-align: center; vertical-align: top;'>" ^ dstr ^ "</tr>\n" ^
"</table>\n"
| sf,true,true,[] -> let ustr,mstr,dstr = List.fold_left (fun (us,ms,ds) (u,m,d) ->
(us^"<td>"^u^"</td>",ms^"<td>"^m^"</td>",ds^"<td>"^d^"</td>")) ("","","") (List.rev sf) in
"\n<table>\n" ^
"\t\t<tr style='text-align: center; vertical-align: bottom;'>" ^ ustr ^ "</tr>\n" ^
"\t\t<tr style='text-align: center;'>" ^ mstr ^ "</tr>\n" ^
"\t\t<tr style='text-align: center; vertical-align: top;'>" ^ dstr ^ "</tr>\n" ^
"</table>\n"
let html_render tree = html_render_table ([],false,false,html_render_deep CTX_NORMAL tree)
let render tree = try Some (html_render tree) with _ -> None