prosody-modules
8de50be756e5
mod_latex/mod_latex.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody-modules

Annotate

mod_latex/mod_latex.lua @ 1820:8de50be756e5

Various README files: Correct indentation levels, fix syntax and other small fixes
author Kim Alvefur <zash@zash.se>
date Wed, 02 Sep 2015 17:30:33 +0200
parent 1433:df8da7e4c2bf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 local st = require "stanza";
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 local urlencode = require "net.http".urlencode;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 local xmlns_xhtmlim = "http://jabber.org/protocol/xhtml-im";
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 local xmlns_xhtml = "http://www.w3.org/1999/xhtml";
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 local function replace_latex(data)
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8 local origin, stanza = data.origin, data.stanza;
1432
ee2302b78c74 mod_latex: get_child_text!
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
9 local body = stanza:get_child_text("body");
ee2302b78c74 mod_latex: get_child_text!
Kim Alvefur <zash@zash.se>
parents: 1343
diff changeset
10 if not body or not body:match("%$%$") then
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 return;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12 end
1433
df8da7e4c2bf mod_latex: Log debug message when actually deciding to do LaTeX replacing
Kim Alvefur <zash@zash.se>
parents: 1432
diff changeset
13 module:log("debug", "Replacing latex...");
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 126
diff changeset
14
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 local html = st.stanza("html", { xmlns = xmlns_xhtmlim })
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 :tag("body", { xmlns = xmlns_xhtml });
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 126
diff changeset
17
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 local in_latex, last_char;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19 for snippet, up_to in body:gmatch("(.-)%$%$()") do
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 last_char = up_to;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 if in_latex then
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22 -- Render latex and add image, next snippet is text
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 in_latex = nil;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24 html:tag("img", { src = "http://www.mathtran.org/cgi-bin/mathtran?D=2;tex="..urlencode(snippet), alt = snippet }):up();
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 else
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
26 -- Add text to HTML, next snippet is latex
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
27 in_latex = true;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28 html:tag("span"):text(snippet):up();
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 126
diff changeset
29
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
30 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
31 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
32 if last_char < #body then
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
33 html:tag("span"):text(body:sub(last_char, #body)):up();
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 126
diff changeset
35
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
36 for n, tag in ipairs(stanza.tags) do
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
37 module:log("debug", "Tag: %s|%s", tag.attr.xmlns or "", tag.name or "");
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
38 if tag.name == "html" and tag.attr.xmlns == xmlns_xhtmlim then
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
39 stanza.tags[n] = html;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 for n, child in ipairs(stanza) do
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
41 if child == tag then
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
42 stanza[n] = html;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
43 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
44 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
45 return;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
46 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
47 end
1343
7dbde05b48a9 all the things: Remove trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 126
diff changeset
48
126
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
49 stanza[#stanza+1] = html;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
50 stanza.tags[#stanza.tags+1] = html;
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 end
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
52
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
53 module:hook("message/bare", replace_latex, 30);
e190c1643a8f mod_latex: New (well, kind of) module for rendering LaTeX in messages and replacing with a rendered embedded image
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
54 module:hook("message/full", replace_latex, 30);