This file is part of GtkSourceView

 Copyright (C) 2005-2007 - Marco Barisione <barisione@gmail.com>

 Copyright (C) 2012-2013 - Tobias Marczewski <tmarczewski@ed-alumni.net>

 Copyright (C) 2013, 2016 - Sébastien Wilmet <swilmet@gnome.org>

 GtkSourceView is free software; you can redistribute it and/or

 modify it under the terms of the GNU Lesser General Public

 License as published by the Free Software Foundation; either

 version 2.1 of the License, or (at your option) any later version.

 GtkSourceView is distributed in the hope that it will be useful,

 but WITHOUT ANY WARRANTY; without even the implied warranty of

 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public License

 along with this library; if not, see <http://www.gnu.org/licenses/>.

-->

<language id="latex" name="LaTeX" version="2.0" _section="Markup">

  <metadata>

    <property name="mimetypes">text/x-tex</property>

    <property name="globs">*.tex;*.ltx;*.sty;*.cls;*.dtx;*.ins;*.bbl</property>

    <property name="line-comment-start">%</property>

  </metadata>

  <styles>

    <style id="comment"            name="Comment"              map-to="def:comment"/>

    <style id="display-math"       name="Math Mode"            map-to="def:string"/>

    <style id="inline-math"        name="Inline Math Mode"     map-to="latex:display-math"/>

    <style id="math"               name="Math Mode"            map-to="latex:display-math"/>

    <style id="math-boundary"      name="Math Boundary"        map-to="latex:display-math"/>

    <style id="include"            name="Include"              map-to="def:keyword"/>

    <style id="common-commands"    name="Command"              map-to="def:keyword"/>

    <style id="command"            name="Command"              map-to="def:keyword"/>

    <style id="verbatim"           name="Verbatim"             map-to="def:comment"/>

    <style id="special-char"       name="Special Character"    map-to="def:special-char"/>

    <style id="part"               name="Part Heading"          map-to="def:heading0"/>

    <style id="chapter"            name="Chapter Heading"       map-to="def:heading1"/>

    <style id="section"            name="Section Heading"       map-to="def:heading2"/>

    <style id="subsection"         name="SubSection Heading"    map-to="def:heading3"/>

    <style id="subsubsection"      name="SubSubSection Heading" map-to="def:heading4"/>

    <style id="paragraph"          name="Paragraph Heading"     map-to="def:heading5"/>

    <style id="subparagraph"       name="SubParagraph Heading"  map-to="def:heading6"/>

  </styles>

  <definitions>

    <context id="comment">

      <include>

        <context id="end-line-comment" style-ref="comment">

          <start>%</start>

          <end>$</end>

          <include>

            <context ref="def:in-comment"/>

          </include>

        </context>

        <context id="comment-env" style-ref="comment" class="no-spell-check">

          <start>\\begin\{comment\}</start>

          <end>\\end\{comment\}</end>

          <include>

            <context ref="def:in-comment"/>

          </include>

        </context>

      </include>

    </context>

    <context id="verbatim-env" style-inside="true" style-ref="verbatim" class-disabled="no-spell-check">

      <start>(\\begin)\{(verbatim\*?|alltt)\}</start>

      <end>(\\end)\{(\%{2@start})\}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

        <context sub-pattern="1" where="end" style-ref="common-commands" class="no-spell-check"/>

        <context sub-pattern="2" where="start" class="no-spell-check"/>

        <context sub-pattern="2" where="end" class="no-spell-check"/>

      </include>

    </context>

    <context id="lstlisting-env" style-inside="true" style-ref="verbatim" class="no-spell-check">

      <start>(\\begin)\{lstlisting\}</start>

      <end>(\\end)\{lstlisting\}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="common-commands"/>

        <context sub-pattern="1" where="end" style-ref="common-commands"/>

      </include>

    </context>

    <context id="R-block" class="no-spell-check">

      <start>(\\begin)\{(Scode|Sinput|Soutput)\}</start>

      <end>(\\end)\{\%{2@start}\}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="common-commands"/>

        <context sub-pattern="1" where="end" style-ref="common-commands"/>

        <context ref="r:r"/>

      </include>

    </context>

        Examples: \url{http://google.de}, \href{http://google.de}{Google}

        Supports also urls with math symbols: \url{https://example.com/$test}

    -->

    <context id="urls">

      <include>

        <context ref="url-command"/>

        <context ref="href-command"/>

      </include>

    </context>

    <context id="url-command" class="no-spell-check">

      <match extended="true">

        (\\url)            # url command.

        \{                 # Literal opening braces.

          [ \t]*           # Optional spaces or tabs after the opening braces.

          .*?              # URL

          [ \t]*           # Optional spaces or tabs before the closing braces.

        \}                 # closing url command.

      </match>

      <include>

        <context sub-pattern="1" style-ref="command"/>

      </include>

    </context>

    <context id="href-command">

      <match extended="true">

        (\\href)           # url command.

        \{(                # Literal opening braces.

          [ \t]*           # Optional spaces or tabs after the opening braces.

          .*?              # URL

          [ \t]*           # Optional spaces or tabs before the closing braces.

        )\}                # closing url command.

        \{(.*?)\}          # link text

      </match>

      <include>

        <context sub-pattern="1" class="no-spell-check" style-ref="command"/>

        <context sub-pattern="2" class="no-spell-check"/>

      </include>

    </context>

        following must support these cases:

          \lstinline[]{code in here}

          \lstinline[key=val, key=val]{code in here}

          \lstinline[key=val, key=val]!code in here!

          \lstinline[]!code in here!

          \lstinline[][code in here[

          \lstinline[NOT code in here, must specify empty optional argument to use square brackets[

          \lstinline{code in here}

          \lstinline{code in {here} but NOT in here}  % brackets do not nest

          \lstinline!code in here!

          \lstinline=code in here=

          \lstinline{this needs to fail{

          If using \verb instead of \lstinline, the brackets cannot be used

        -->

    <context id="lstinline-curly-brackets" style-inside="true" style-ref="verbatim" class="no-spell-check">

      <start>(\\lstinline)(\[.*?\])?{</start>

      <end>}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="command"/>

      </include>

    </context>

    <context id="lstinline-square-brackets" style-inside="true" style-ref="verbatim" class="no-spell-check">

           optional argument, even if empty -->

      <start>(\\lstinline)(\[.*?\])\[</start>

      <end>\[</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="command"/>

      </include>

    </context>

    <context id="lstinline" style-inside="true" style-ref="verbatim" class="no-spell-check">

      <start>(\\lstinline)(\[.*?\])?((?!\[)\S)</start>  

      <end>\%{3@start}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="command"/>

      </include>

    </context>

    <context id="verbatim-inline" style-inside="true" style-ref="verbatim" class-disabled="no-spell-check">

      <start>(\\verb)\*?(\S)</start>

      <end>\%{2@start}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="command" class="no-spell-check"/>

      </include>

    </context>

    <context id="verbatim">

      <include>

        <context ref="verbatim-env"/>

        <context ref="lstlisting-env"/>

        <context ref="verbatim-inline"/>

        <context ref="lstinline-curly-brackets"/>

        <context ref="lstinline-square-brackets"/>

        <context ref="lstinline"/>

      </include>

    </context>

    <context id="common-commands" style-ref="common-commands" class="no-spell-check">

      <prefix>\\</prefix>

        boundary but it is allowed in latex -->

      <suffix>(\b|(?=_))</suffix>

      <keyword>Alpha</keyword>

      <keyword>Beta</keyword>

      <keyword>Chi</keyword>

      <keyword>Delta</keyword>

      <keyword>Epsilon</keyword>

      <keyword>Eta</keyword>

      <keyword>Gamma</keyword>

      <keyword>Iota</keyword>

      <keyword>Kappa</keyword>

      <keyword>Lambda</keyword>

      <keyword>Leftarrow</keyword>

      <keyword>Leftrightarrow</keyword>

      <keyword>Mu</keyword>

      <keyword>Nu</keyword>

      <keyword>Omega</keyword>

      <keyword>Phi</keyword>

      <keyword>Pi</keyword>

      <keyword>Psi</keyword>

      <keyword>Rho</keyword>

      <keyword>Rightarrow</keyword>

      <keyword>Sigma</keyword>

      <keyword>Tau</keyword>

      <keyword>Zeta</keyword>

      <keyword>alpha</keyword>

      <keyword>appendix</keyword>

      <keyword>begin</keyword>

      <keyword>beta</keyword>

      <keyword>bigcap</keyword>

      <keyword>bigcup</keyword>

      <keyword>cap</keyword>

      <keyword>cdot</keyword>

      <keyword>chapter</keyword>

      <keyword>chi</keyword>

      <keyword>cite</keyword>

      <keyword>cup</keyword>

      <keyword>delta</keyword>

      <keyword>documentclass</keyword>

      <keyword>end</keyword>

      <keyword>enumi</keyword>

      <keyword>enumii</keyword>

      <keyword>enumiii</keyword>

      <keyword>enumiv</keyword>

      <keyword>epsilon</keyword>

      <keyword>equation</keyword>

      <keyword>eta</keyword>

      <keyword>exists</keyword>

      <keyword>figure</keyword>

      <keyword>footnote</keyword>

      <keyword>footnotemark</keyword>

      <keyword>footnotetext</keyword>

      <keyword>forall</keyword>

      <keyword>gamma</keyword>

      <keyword>geq</keyword>

      <keyword>in</keyword>

      <keyword>int</keyword>

      <keyword>iota</keyword>

      <keyword>kappa</keyword>

      <keyword>label</keyword>

      <keyword>lambda</keyword>

      <keyword>ldots</keyword>

      <keyword>leftarrow</keyword>

      <keyword>leq</keyword>

      <keyword>mpfootnote</keyword>

      <keyword>mu</keyword>

      <keyword>neq</keyword>

      <keyword>newcommand</keyword>

      <keyword>newenvironment</keyword>

      <keyword>newfont</keyword>

      <keyword>newtheorem</keyword>

      <keyword>not</keyword>

      <keyword>notin</keyword>

      <keyword>nu</keyword>

      <keyword>omega</keyword>

      <keyword>onecolumn</keyword>

      <keyword>page</keyword>

      <keyword>pageref</keyword>

      <keyword>paragraph</keyword>

      <keyword>part</keyword>

      <keyword>phi</keyword>

      <keyword>pi</keyword>

      <keyword>prod</keyword>

      <keyword>psi</keyword>

      <keyword>qquad</keyword>

      <keyword>quad</keyword>

      <keyword>ref</keyword>

      <keyword>rho</keyword>

      <keyword>rightarrow</keyword>

      <keyword>section</keyword>

      <keyword>setminus</keyword>

      <keyword>sigma</keyword>

      <keyword>subparagraph</keyword>

      <keyword>subsection</keyword>

      <keyword>subset</keyword>

      <keyword>subseteq</keyword>

      <keyword>subsetneq</keyword>

      <keyword>subsubsection</keyword>

      <keyword>subsubsubsection</keyword>

      <keyword>sum</keyword>

      <keyword>supset</keyword>

      <keyword>supseteq</keyword>

      <keyword>supsetneq</keyword>

      <keyword>table</keyword>

      <keyword>tau</keyword>

      <keyword>times</keyword>

      <keyword>twocolumn</keyword>

      <keyword>varepsilon</keyword>

      <keyword>varphi</keyword>

      <keyword>zeta</keyword>

    </context>

    <context id="generic-command" style-ref="command" class="no-spell-check" extend-parent="false">

      <match>\\\@?[[:alnum:]]+\*?</match>

    </context>

    <context id="specific-commands">

      <include>

        <context id="documentclass" class="no-spell-check">

          <match>(\\documentclass)(\[.*\])?(\{.*\})?</match>

          <include>

            <context sub-pattern="1" style-ref="common-commands"/>

          </include>

        </context>

        <context id="include" class="no-spell-check">

          <match>(\\(input|include|includeonly|usepackage))\b(\[.*\])?(\{.*\})?</match>

          <include>

            <context sub-pattern="1" style-ref="include"/>

          </include>

        </context>

        <context id="begin-end-command" class="no-spell-check">

          <match>(\\(begin|end))\{.*\}</match>

          <include>

            <context sub-pattern="1" style-ref="common-commands"/>

          </include>

        </context>

      </include>

    </context>

    <define-regex id="accents" extended="true">

      (\\(                                      #leading backslash

         (                                      #1-Accents-

          [bcdHruv\.\^'`~"=]                    #  accent symbol

          \s*\{([a-zA-Z] | \\i | \\j)\} |       #  letter (\i \j for i,j without dot)

          [\.\^'`~"=]\s*([a-zA-Z] | \\i | \\j) |#  non-letter accents without braces

          t\s*\{([a-zA-Z] | \\i | \\j){2}\}     #  special accent over two letters

         ) | (                                  #2-Special letters-

          (aa|AA | ae|AE | oe|OE | ss|SS |      #  letters followed by a non-word

          [oO] | [lL])(?![a-zA-Z_@])            #  character or e.g. \l causes

         )                                      #  unwanted behaviour (i.e. \label)

        )) | (!` | \?`)                         #3-Spanish punctuation

    </define-regex>

    <context id="special-char">

      <include>

             example the hat (^) can be used as an accent and will be placed over

             the following letter (e.g. \^o will NOT produce ^o) -->

        <context id="accents" style-ref="special-char" class="no-spell-check">

          <match>\%{accents}</match>

        </context>

        <context id="special-symbols" style-ref="special-char" class="no-spell-check">

          <prefix>\\</prefix>

          <suffix></suffix>

          <keyword>\$</keyword>

          <keyword>&</keyword>

          <keyword>%</keyword>

          <keyword>#</keyword>

          <keyword>_</keyword>

          <keyword>\{</keyword>

          <keyword>\}</keyword>

          <keyword>~</keyword>

          <keyword>\^</keyword>

          <keyword>\\</keyword>

        </context>

      </include>

    </context>

    <context id="curly-braces-pair">

      <start>\{</start>

      <end>\}</end>

      <include>

        <context ref="curly-braces-pair"/>

        <context ref="latex"/>

      </include>

    </context>

    <context id="headings">

      <include>

        <context id="part" style-inside="true" style-ref="part" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\part\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="chapter" style-inside="true" style-ref="chapter" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\chapter\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="section" style-inside="true" style-ref="section" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\section\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="subsection" style-inside="true" style-ref="subsection" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\subsection\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="subsubsection" style-inside="true" style-ref="subsubsection" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\subsubsection\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="paragraph" style-inside="true" style-ref="paragraph" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\paragraph\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

        <context id="subparagraph" style-inside="true" style-ref="subparagraph" end-at-line-end="true" class-disabled="no-spell-check">

          <start>(\\subparagraph\*?)\{</start>

          <end>\}</end>

          <include>

            <context sub-pattern="1" where="start" style-ref="common-commands" class="no-spell-check"/>

            <context ref="curly-braces-pair"/>

            <context ref="latex"/>

          </include>

        </context>

      </include>

    </context>

    <context id="math-command" class="no-spell-check" style-ref="common-commands">

      <match extended="true">

        \\(

          frac | sqrt | sum | (co)?prod | o?int |           #-Functions

          infty | (c|d|v)dots | nonumber |                  #-special in math mode

          mathnormal | math(rm|sf|tt|it|bf|cal) |           #-Math font commands

          (display|text|script(script)?)style |             #-Math size commands

          alpha | beta | (g|G)amma | (d|D)elta |            #-Greek letters

          (var)?epsilon | zeta | eta | ((vart)|t|T)heta |   ##

          iota | kappa | (l|L)ambda | mu | nu | (x|X)i |    ##

          ((varp)|p|P)i | (var)?rho | ((vars)|s|S)igma |    ##

          tau | (u|U)psilon | ((varp)|p|P)hi | chi |        ##

          (p|P)si | (o|O)mega |                             ##

          pm | mp | times | div | cdot | ast | star |       #-Binary operators

          dd?agger | amalg | (sq)?c(a|u)p | uplus | vee |   ##

          wedge | o(plus|minus|times) | (big)?circ |        ##

          bullet | (d|D)iamond | (un)?(l|r)hd |             ##

          o(slash|dot) | Box | bigtriangle(up|down) |       ##

          triangle(left|right) | setminus | wr |            ##

          gets | to | ((u|U)p(down)? | (d|D)own)arrow |     #-Arrows and pointers

          ((l|L)eft(right)?|(r|R)ight)arrow | (long)mapsto |##

          hook(left|right)arrow | (ne|se|sw|nw)arrow |      ##

          (left|right)harpoon(up|down) | rightleftharpoons |##

          (l|L)ong(left(right)?|right)arrow |               ##

          (wide)hat | check | dd?ot | breve | acute |       #-Accents in math mode

          grave | bar | vec | (wide)tilde | mathring |      ##

          (over|under)(line|brace) | (i|j)math |            ##i, j  dots removed

          (arc)?(cosh?|sinh?|tanh?) | arg | coth? | csc |   #-Function names

          deg | det | dim | exp | gcd | hom | inf | ker |   ##

          lg | lim(inf|sup)? | ln | log | max | min | Pr |  ##

          sec | sup                                         ##

        )(?=\b)

      </match>

    </context>

    <context id="math-spacing" style-ref="special-char">

      <match>\\[;:!]</match>

    </context>

    <context id="math-brackets" style-ref="common-commands">

      <match extended="true">

        \\(left | right | [bB]igg?[lr])  (      # bracket size specifier

          \(|\) | \[|\] | \\\{|\\\}   |         # normal brackets (curly escaped)

          \|  |  \\\|  |  /  |  \\backslash |   # pipe and slashes

          \\(                                   #-symbol commands

            [lr]floor | [lr]ceil | [lr]angle |  ##

            ([uU]p(down)?|[dD]own)arrow         ##

          )                                     ##

        )

      </match>

    </context>

    <context id="math-super-sub-script" style-ref="common-commands">

      <match>\^|_</match>

    </context>

    <context id="in-math" class="no-spell-check">

      <include>

        <context ref="comment"/>

        <context ref="math-command"/>

        <context ref="math-spacing"/>

        <context ref="math-brackets"/>

        <context ref="special-char"/>

        <context ref="math-super-sub-script"/>

        <context ref="generic-command"/>

      </include>

    </context>

    <context id="math-1" style-ref="math" class="no-spell-check">

      <start>\$\$</start>

      <end>\$\$</end>

      <include>

        <context sub-pattern="0" where="start" style-ref="math-boundary"/>

        <context sub-pattern="0" where="end" style-ref="math-boundary"/>

        <context ref="in-math"/>

      </include>

    </context>

    <context id="math-2" style-ref="math" class="no-spell-check">

      <start>\\\[</start>

      <end>\\\]</end>

      <include>

        <context sub-pattern="0" where="start" style-ref="math-boundary"/>

        <context sub-pattern="0" where="end" style-ref="math-boundary"/>

        <context ref="in-math"/>

      </include>

    </context>

    <context id="math-env" style-ref="math" style-inside="true" class="no-spell-check">

      <start>(\\begin)\{(math|displaymath|equation\*?|align\*?|eqnarray\*?)\}</start>

      <end>(\\end)\{\%{2@start}\}</end>

      <include>

        <context sub-pattern="1" where="start" style-ref="common-commands"/>

        <context sub-pattern="1" where="end" style-ref="common-commands"/>

        <context ref="in-math"/>

      </include>

    </context>

    <context id="inline-math-1" style-ref="inline-math" class="no-spell-check">

      <start>\$</start>

      <end>\$</end>

      <include>

        <context sub-pattern="0" where="start" style-ref="math-boundary"/>

        <context sub-pattern="0" where="end" style-ref="math-boundary"/>

        <context ref="in-math"/>

      </include>

    </context>

    <context id="inline-math-2" style-ref="inline-math" class="no-spell-check">

      <start>\\\(</start>

      <end>\\\)</end>

      <include>

        <context sub-pattern="0" where="start" style-ref="math-boundary"/>

        <context sub-pattern="0" where="end" style-ref="math-boundary"/>

        <context ref="in-math"/>

      </include>

    </context>

    <context id="math">

      <include>

        <context ref="math-1"/>

        <context ref="math-2"/>

        <context ref="math-env"/>

        <context ref="inline-math-1"/>

        <context ref="inline-math-2"/>

      </include>

    </context>

    <context id="latex">

      <include>

        <context ref="comment"/>

        <context ref="verbatim"/>

        <context ref="R-block"/>

        <context ref="headings"/>

        <context ref="math"/>

        <context ref="urls"/>

        <context ref="specific-commands"/>

        <context ref="common-commands"/>

        <context ref="special-char"/>

        <context ref="generic-command"/>

      </include>

    </context>

  </definitions>

</language>