Merge pull request #35 from ajalexei/master

Added syntax highlighting for BibTeX files, PDF preview for LaTeX files, compilation of LaTeX files into PDF

3 files changed, 111 insertions, 0 deletions

diff --git a/plugins/language_bib.lua b/plugins/language_bib.lua
new file mode 100644
index 0000000..08a5662
--- /dev/null
+++ b/plugins/language_bib.lua
@@ -0,0 +1,22 @@
+-- mod-version:1 -- lite-xl 1.16
+local syntax = require "core.syntax"
+
+syntax.add {
+  files = { "%.bib$" },
+  comment = "%%",
+  patterns = {
+    { pattern = {"%%", "\n"},     type = "comment"   },
+    { pattern = "@%a+",           type = "keyword"   },
+    { pattern = "%a+%s=",         type = "keyword2"  },
+  },
+  symbols = {
+    ["author"] = "keyword",
+    ["doi"] = "keyword",
+    ["issue"] = "keyword",
+    ["journal"] = "keyword",
+    ["month"] = "keyword",
+    ["numpages"] = "keyword",
+    ["pages"] = "keyword",
+    ["publisher"] = "keyword",
+  }
+}
diff --git a/plugins/pdfview.lua b/plugins/pdfview.lua
new file mode 100644
index 0000000..41e8ad0
--- /dev/null
+++ b/plugins/pdfview.lua
@@ -0,0 +1,45 @@
+-- mod-version:1 -- lite-xl 1.16
+local core = require "core"
+local command = require "core.command"
+local keymap = require "core.keymap"
+
+command.add("core.docview", {
+  ["pdfview:show-preview"] = function()
+    local av = core.active_view
+
+-- User's home directory
+    local homedir = ""
+
+    if PLATFORM == "Windows" then
+        homedir = os.getenv("USERPROFILE")
+    else
+        homedir = os.getenv("HOME")
+    end
+
+-- The current (La)TeX file
+    local texfile = av:get_filename()
+    texfile = string.gsub(texfile, '~', homedir)
+-- Construct the PDF file name out of the (La)Tex filename
+    local pdffile = string.gsub(texfile, ".tex", ".pdf")
+-- PDF viewer - is there any provided by the environment
+    local pdfcmd = os.getenv("LITE_PDF_VIEWER")
+
+    core.log("Opening pdf preview for \"%s\"", texfile)
+
+    if pdfcmd ~= nil then
+        system.exec(pdfcmd .. " " .. pdffile)
+    elseif PLATFORM == "Windows" then
+        system.exec("start " .. pdffile)
+    else
+        system.exec(string.format("xdg-open %q", pdffile))
+    end
+
+--    core.add_thread(function()
+--      coroutine.yield(5)
+--      os.remove(htmlfile)
+--    end)
+  end
+})
+
+
+keymap.add { ["ctrl+shift+v"] = "pdfview:show-preview" }
diff --git a/plugins/texcompile.lua b/plugins/texcompile.lua
new file mode 100644
index 0000000..7a5fd6e
--- /dev/null
+++ b/plugins/texcompile.lua
@@ -0,0 +1,44 @@
+-- mod-version:1 -- lite-xl 1.16
+local core = require "core"
+local command = require "core.command"
+local keymap = require "core.keymap"
+
+command.add("core.docview", {
+  ["texcompile:tex-compile"] = function()
+    local av = core.active_view
+
+-- User's home directory
+    local homedir = ""
+
+    if PLATFORM == "Windows" then
+        homedir = os.getenv("USERPROFILE")
+    else
+        homedir = os.getenv("HOME")
+    end
+
+-- The current (La)TeX file and path
+    local texname = av:get_name()
+    local texpath = av:get_filename()
+    texpath = string.gsub(texpath, '~', homedir)
+    texpath = string.gsub(texpath, texname, '')
+
+-- LaTeX compiler - is there any provided by the environment
+    local texcmd = os.getenv("LITE_LATEX_COMPILER")
+
+    if texcmd == nil then
+        core.log("No LaTeX compiler found")
+    else
+        core.log("LaTeX compiler is %s, compiling %s", texcmd, texname)
+
+        system.exec(string.format("cd %q && %q %q", texpath, texcmd, texname))
+    end
+
+--    core.add_thread(function()
+--      coroutine.yield(5)
+--      os.remove(htmlfile)
+--    end)
+  end
+})
+
+
+keymap.add { ["ctrl+shift+t"] = "texcompile:tex-compile" }