Normal math alphabet letters not appearing as italic

Question

I am having a problem with the normal math fonts which is not appearing as italic.

abc&&\mathit{abc} \\% problem here: non-mathit (abc) not italic!!!!

I want to use \RequirePackage[math-style=literal]{unicode-math} to get all variants of the Greek characters (for example: \upPhi, \Phi, \mathbf{\upPhi}, \mathbf{\Phi}) appear right.

There is also a problem with mathalfa package in which some of the fonts are not appearing properly. My torture file (MWE) is given below.

    \documentclass[a4paper]{article}

    \usepackage[bb=px,cal=boondox,frak=boondox,scr=euler]{mathalfa}

    \RequirePackage[margin=2cm]{geometry}
    \RequirePackage{longtable,xspace}
    \RequirePackage{mathspec}

    \RequirePackage[math-style=literal]{unicode-math}

    \def\alphabets{a\ {quick}\ {brown}\ {fox}\ {jumps}\ {over}\ {the}\ {lazy}\ {dog.}}
    \def\Alphabets{A\ {QUICK}\ {BROWN}\ {FOX}\ {JUMPS}\ {OVER}\ {THE}\ {LAZY}\ {DOG.}}
    \def\digits{0123456789}
    \def\Symbols{;:\#@\$!+\%-(\&)[*]\{\}.?|}
    \makeatletter
    \def\test[#1]{&%
     \expandafter\@tfor\expandafter\xx\expandafter:\expandafter=\alphabets\do{%
       \ensuremath{\expandafter\csname #1\endcsname{\xx}}\xspace%
     }&%
     \expandafter\@tfor\expandafter\xx\expandafter:\expandafter=\Alphabets\do{%
       \ensuremath{\expandafter\csname #1\endcsname{\xx}}\xspace%
     }&%
     \expandafter\@tfor\expandafter\xx\expandafter:\expandafter=\digits\do{%
       \ensuremath{\expandafter\csname #1\endcsname{\xx}}\xspace%
     }&%
     \expandafter\@tfor\expandafter\xx\expandafter:\expandafter=\Symbols\do{%
       \ensuremath{\expandafter\csname #1\endcsname{\xx}}\xspace%
     }
    }
    \makeatother
    \parindent=0pt
    \begin{document}

    \pagestyle{empty}

    \begin{center}
    \underline{Testing Greek characters.}\\
    \begin{tabular}{ll}
    Upright &\ensuremath{\upPhi}\\
    Italic &\ensuremath{\Phi}\\
    Bold Upright &\ensuremath{\mathbf{\upPhi}}\\
    Bold Italic & \ensuremath{\mathbf{\Phi}}\\
    \end{tabular}
    \end{center}

    \begin{eqnarray*}\label{eqn1}
    \mbox{text}&&\text{text}\ \mathrm{text}\\% upright text
    abc&&\mathit{abc} \\% problem here: non-mathit not working!!!!
    (a+b)^2&=&a^2+2ab+b^2\\
    E&=&mc^2
    \end{eqnarray*}
    \begin{longtable}{lp{12pc}p{12pc}p{4pc}p{6pc}}
    mathbb \test[mathbb]\\
    mathbbb \test[mathbbb]\\
    mathcal \test[mathcal]\\
    mathbcal \test[mathbcal]\\
    mathfrak \test[mathfrak]\\
    mathbfrak \test[mathbfrak]\\
    mathscr \test[mathscr]\\
    mathbscr \test[mathbscr]\\
    mathrm \test[mathrm]\\
    mathit \test[mathit]\\
    mathbf \test[mathbf]\\
    mathbfit \test[mathbfit]\\
    mathsf \test[mathsf]\\
    mathsfit \test[mathsfit]\\
    mathbfsf \test[mathbfsf]\\
    mathtt \test[mathtt]\\
    %mathttit \test[mathttit]\\
    %mathbftt \test[mathbftt]
    \end{longtable}

    \end{document}

Could someone help me in sorting normal alphabets to italic without breaking the Greek characters?

Note: I am using xelatex on TL2015.

Answer 1

I'm not absolutely certain what you're asking, especially because your example is not compilable nor does it make a lot of sense. unicode-math doesn't work with mathspec or mathalfa. All those packages are mutually exclusive.

That said, I think what you want to achieve can already be done in the default settings of unicode-math.

\documentclass{article}
\usepackage{unicode-math}
\begin{document}
$abc, \mathit{abc}$

$\Phi, \symit{\Phi}, \symup{\Phi}, \symbf{\Phi}, \symbfit{\Phi}$
\end{document}