How to check the existence of some characters in a font using a loop?












0














I am trying to modify the current version of xepersian package
to suit my needs.
The following code copied from
xepersian-mathsdigitspec.sty
is supposed to check if some characters do exist in the font to be loaded.
My question is about the function __xepersian_mathsdigitspec_char_not_exist_error.
Is there any way to replace those repeating lines of code in the argument of the function with a (while, until, ...) LOOP
which iterates over a list of characters [06F0, ..., 066B]?



cs_new:Npn __xepersian_mathsdigitspec_error:nxx    { msg_error:nnxx    {xepersian-mathsdigitspec} }

cs_new:Nn __xepersian_mathsdigitspec_msg_new:nnnn

  { msg_new:nnxx {#1} {#2} { tl_trim_spaces:n {#3} } { tl_trim_spaces:n {#4} } }

char_set_catcode_space:n {32}

__xepersian_mathsdigitspec_msg_new:nnnn {xepersian-mathsdigitspec} {char-not-exist}

 {

  The font "#1" does not contain U+#2.

 }

 {

  Select another font and rerun xelatex.

 }

char_set_catcode_ignore:n {32}



prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}

  {

    etex_iffontchar:D l_fontspec_font `#1 scan_stop:

      prg_return_true:

    else:

      prg_return_false:

    fi:

  }



cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n

 {

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }

 }





fontspec latex3 xepersian







share|improve this question






















  • If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
    – Steven B. Segletes
    Dec 18 '18 at 11:52










  • Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
    – Steven B. Segletes
    Dec 18 '18 at 11:54






  • 1




    Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
    – Tisha Shusho
    Dec 18 '18 at 19:41
















0














I am trying to modify the current version of xepersian package
to suit my needs.
The following code copied from
xepersian-mathsdigitspec.sty
is supposed to check if some characters do exist in the font to be loaded.
My question is about the function __xepersian_mathsdigitspec_char_not_exist_error.
Is there any way to replace those repeating lines of code in the argument of the function with a (while, until, ...) LOOP
which iterates over a list of characters [06F0, ..., 066B]?



cs_new:Npn __xepersian_mathsdigitspec_error:nxx    { msg_error:nnxx    {xepersian-mathsdigitspec} }

cs_new:Nn __xepersian_mathsdigitspec_msg_new:nnnn

  { msg_new:nnxx {#1} {#2} { tl_trim_spaces:n {#3} } { tl_trim_spaces:n {#4} } }

char_set_catcode_space:n {32}

__xepersian_mathsdigitspec_msg_new:nnnn {xepersian-mathsdigitspec} {char-not-exist}

 {

  The font "#1" does not contain U+#2.

 }

 {

  Select another font and rerun xelatex.

 }

char_set_catcode_ignore:n {32}



prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}

  {

    etex_iffontchar:D l_fontspec_font `#1 scan_stop:

      prg_return_true:

    else:

      prg_return_false:

    fi:

  }



cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n

 {

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }

 }





fontspec latex3 xepersian







share|improve this question






















  • If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
    – Steven B. Segletes
    Dec 18 '18 at 11:52










  • Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
    – Steven B. Segletes
    Dec 18 '18 at 11:54






  • 1




    Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
    – Tisha Shusho
    Dec 18 '18 at 19:41














0












0








0







I am trying to modify the current version of xepersian package
to suit my needs.
The following code copied from
xepersian-mathsdigitspec.sty
is supposed to check if some characters do exist in the font to be loaded.
My question is about the function __xepersian_mathsdigitspec_char_not_exist_error.
Is there any way to replace those repeating lines of code in the argument of the function with a (while, until, ...) LOOP
which iterates over a list of characters [06F0, ..., 066B]?



cs_new:Npn __xepersian_mathsdigitspec_error:nxx    { msg_error:nnxx    {xepersian-mathsdigitspec} }

cs_new:Nn __xepersian_mathsdigitspec_msg_new:nnnn

  { msg_new:nnxx {#1} {#2} { tl_trim_spaces:n {#3} } { tl_trim_spaces:n {#4} } }

char_set_catcode_space:n {32}

__xepersian_mathsdigitspec_msg_new:nnnn {xepersian-mathsdigitspec} {char-not-exist}

 {

  The font "#1" does not contain U+#2.

 }

 {

  Select another font and rerun xelatex.

 }

char_set_catcode_ignore:n {32}



prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}

  {

    etex_iffontchar:D l_fontspec_font `#1 scan_stop:

      prg_return_true:

    else:

      prg_return_false:

    fi:

  }



cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n

 {

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }

 }





fontspec latex3 xepersian







share|improve this question













I am trying to modify the current version of xepersian package
to suit my needs.
The following code copied from
xepersian-mathsdigitspec.sty
is supposed to check if some characters do exist in the font to be loaded.
My question is about the function __xepersian_mathsdigitspec_char_not_exist_error.
Is there any way to replace those repeating lines of code in the argument of the function with a (while, until, ...) LOOP
which iterates over a list of characters [06F0, ..., 066B]?



cs_new:Npn __xepersian_mathsdigitspec_error:nxx    { msg_error:nnxx    {xepersian-mathsdigitspec} }

cs_new:Nn __xepersian_mathsdigitspec_msg_new:nnnn

  { msg_new:nnxx {#1} {#2} { tl_trim_spaces:n {#3} } { tl_trim_spaces:n {#4} } }

char_set_catcode_space:n {32}

__xepersian_mathsdigitspec_msg_new:nnnn {xepersian-mathsdigitspec} {char-not-exist}

 {

  The font "#1" does not contain U+#2.

 }

 {

  Select another font and rerun xelatex.

 }

char_set_catcode_ignore:n {32}



prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}

  {

    etex_iffontchar:D l_fontspec_font `#1 scan_stop:

      prg_return_true:

    else:

      prg_return_false:

    fi:

  }



cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n

 {

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }

 }





fontspec latex3 xepersian




fontspec latex3 xepersian






share|improve this question













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asked Dec 14 '18 at 16:06









Tisha Shusho

175




175












  • If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
    – Steven B. Segletes
    Dec 18 '18 at 11:52










  • Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
    – Steven B. Segletes
    Dec 18 '18 at 11:54






  • 1




    Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
    – Tisha Shusho
    Dec 18 '18 at 19:41


















  • If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
    – Steven B. Segletes
    Dec 18 '18 at 11:52










  • Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
    – Steven B. Segletes
    Dec 18 '18 at 11:54






  • 1




    Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
    – Tisha Shusho
    Dec 18 '18 at 19:41
















If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
– Steven B. Segletes
Dec 18 '18 at 11:52




If you just need to see if certain glyphs exist, why not just use fonttable, as in documentclass{article} usepackage{fullpage} usepackage{fonttable} begin{document} fonttable{cmti10} fonttable{cmsy10} end{document}
– Steven B. Segletes
Dec 18 '18 at 11:52












Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
– Steven B. Segletes
Dec 18 '18 at 11:54




Welcome to the site, as well. By the way, it is appropriate in your question to include a fully compiling example rather than just a code snippet or macro definition.
– Steven B. Segletes
Dec 18 '18 at 11:54




1




1




Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
– Tisha Shusho
Dec 18 '18 at 19:41




Thanks, Steven, the check for the existence of the characters must be done within the program. BTW, I tried too much to prepare a complete, small, and working example, but I couldn't, because I am a newbie.
– Tisha Shusho
Dec 18 '18 at 19:41










1 Answer
1






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oldest

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0














After reading the documents "The expl3 package and LaTeX3 programming" and the
"LaTeX3 Interfaces" again (but thoroughly this time) I think I have found a
solution to my question.
I replaced the following piece of code in xepersian-mathsdigitspec.sty:



prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}

  {

    etex_iffontchar:D l_fontspec_font `#1 scan_stop:

      prg_return_true:

    else:

      prg_return_false:

    fi:

  }



cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n

 {

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }

    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }

 }


with



seq_new:N l_my_xepersian_digits_seq 

seq_set_split:Nnn l_my_xepersian_digits_seq { , } { 06F0 , 06F1 , 06F2 , 06F3 , 06F4 , 06F5 , 06F6 , 06F7 , 06F8 , 06F9 , 066A , 066B }


and replaced all instances of the function
__xepersian_mathsdigitspec_char_not_exist_error with:



seq_map_inline:Nn l_my_xepersian_digits_seq

  {

    etex_iffontchar:D l_fontspec_font "##1 scan_stop:

    else:

      __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #2 } { ##1 }

    fi:

  }


Of course one can use seq_map_function to define a new function and replace
all occurrences of the function __xepersian_mathsdigitspec_char_not_exist_error
with that.






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    After reading the documents "The expl3 package and LaTeX3 programming" and the
    "LaTeX3 Interfaces" again (but thoroughly this time) I think I have found a
    solution to my question.
    I replaced the following piece of code in xepersian-mathsdigitspec.sty:



    prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}
    
  {
    
    etex_iffontchar:D l_fontspec_font `#1 scan_stop:
    
      prg_return_true:
    
    else:
    
      prg_return_false:
    
    fi:
    
  }
    

    
cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n
    
 {
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }
    
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }
    
 }


    with



    seq_new:N l_my_xepersian_digits_seq 
    
seq_set_split:Nnn l_my_xepersian_digits_seq { , } { 06F0 , 06F1 , 06F2 , 06F3 , 06F4 , 06F5 , 06F6 , 06F7 , 06F8 , 06F9 , 066A , 066B }


    and replaced all instances of the function
    __xepersian_mathsdigitspec_char_not_exist_error with:



    seq_map_inline:Nn l_my_xepersian_digits_seq
    
  {
    
    etex_iffontchar:D l_fontspec_font "##1 scan_stop:
    
    else:
    
      __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #2 } { ##1 }
    
    fi:
    
  }


    Of course one can use seq_map_function to define a new function and replace
    all occurrences of the function __xepersian_mathsdigitspec_char_not_exist_error
    with that.






    share|improve this answer


























      0














      After reading the documents "The expl3 package and LaTeX3 programming" and the
      "LaTeX3 Interfaces" again (but thoroughly this time) I think I have found a
      solution to my question.
      I replaced the following piece of code in xepersian-mathsdigitspec.sty:



      prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}
      
  {
      
    etex_iffontchar:D l_fontspec_font `#1 scan_stop:
      
      prg_return_true:
      
    else:
      
      prg_return_false:
      
    fi:
      
  }
      

      
cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n
      
 {
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }
      
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }
      
 }


      with



      seq_new:N l_my_xepersian_digits_seq 
      
seq_set_split:Nnn l_my_xepersian_digits_seq { , } { 06F0 , 06F1 , 06F2 , 06F3 , 06F4 , 06F5 , 06F6 , 06F7 , 06F8 , 06F9 , 066A , 066B }


      and replaced all instances of the function
      __xepersian_mathsdigitspec_char_not_exist_error with:



      seq_map_inline:Nn l_my_xepersian_digits_seq
      
  {
      
    etex_iffontchar:D l_fontspec_font "##1 scan_stop:
      
    else:
      
      __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #2 } { ##1 }
      
    fi:
      
  }


      Of course one can use seq_map_function to define a new function and replace
      all occurrences of the function __xepersian_mathsdigitspec_char_not_exist_error
      with that.






      share|improve this answer
























        0












        0








        0






        After reading the documents "The expl3 package and LaTeX3 programming" and the
        "LaTeX3 Interfaces" again (but thoroughly this time) I think I have found a
        solution to my question.
        I replaced the following piece of code in xepersian-mathsdigitspec.sty:



        prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}
        
  {
        
    etex_iffontchar:D l_fontspec_font `#1 scan_stop:
        
      prg_return_true:
        
    else:
        
      prg_return_false:
        
    fi:
        
  }
        

        
cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n
        
 {
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }
        
 }


        with



        seq_new:N l_my_xepersian_digits_seq 
        
seq_set_split:Nnn l_my_xepersian_digits_seq { , } { 06F0 , 06F1 , 06F2 , 06F3 , 06F4 , 06F5 , 06F6 , 06F7 , 06F8 , 06F9 , 066A , 066B }


        and replaced all instances of the function
        __xepersian_mathsdigitspec_char_not_exist_error with:



        seq_map_inline:Nn l_my_xepersian_digits_seq
        
  {
        
    etex_iffontchar:D l_fontspec_font "##1 scan_stop:
        
    else:
        
      __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #2 } { ##1 }
        
    fi:
        
  }


        Of course one can use seq_map_function to define a new function and replace
        all occurrences of the function __xepersian_mathsdigitspec_char_not_exist_error
        with that.






        share|improve this answer












        After reading the documents "The expl3 package and LaTeX3 programming" and the
        "LaTeX3 Interfaces" again (but thoroughly this time) I think I have found a
        solution to my question.
        I replaced the following piece of code in xepersian-mathsdigitspec.sty:



        prg_new_conditional:Nnn __xepersian_mathsdigitspec_primitive_font_char_if_exist:n {p,TF,T,F}
        
  {
        
    etex_iffontchar:D l_fontspec_font `#1 scan_stop:
        
      prg_return_true:
        
    else:
        
      prg_return_false:
        
    fi:
        
  }
        

        
cs_new:Nn __xepersian_mathsdigitspec_char_not_exist_error:n
        
 {
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۰ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F0 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۱ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F1 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۲ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F2 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۳ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F3 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۴ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F4 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۵ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F5 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۶ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F6 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۷ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F7 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۸ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F8 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ۹ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 06F9 } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٫ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066B } }
        
    __xepersian_mathsdigitspec_primitive_font_char_if_exist:nF ٪ { __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #1 } { 066A } }
        
 }


        with



        seq_new:N l_my_xepersian_digits_seq 
        
seq_set_split:Nnn l_my_xepersian_digits_seq { , } { 06F0 , 06F1 , 06F2 , 06F3 , 06F4 , 06F5 , 06F6 , 06F7 , 06F8 , 06F9 , 066A , 066B }


        and replaced all instances of the function
        __xepersian_mathsdigitspec_char_not_exist_error with:



        seq_map_inline:Nn l_my_xepersian_digits_seq
        
  {
        
    etex_iffontchar:D l_fontspec_font "##1 scan_stop:
        
    else:
        
      __xepersian_mathsdigitspec_error:nxx {char-not-exist} { #2 } { ##1 }
        
    fi:
        
  }


        Of course one can use seq_map_function to define a new function and replace
        all occurrences of the function __xepersian_mathsdigitspec_char_not_exist_error
        with that.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 18 '18 at 19:51









        Tisha Shusho

        175




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