mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/Math
synced 2024-11-28 01:10:09 +00:00
4c9dc2f08e
texvc had several tasks in the past: 1 checking the input 2 convert MediaWiki custom syntax to standard LaTeX 3 run LaTeX 4 convert dvi2png This change provides a simplified version that performs only steps 1+2. This is required to avoid security problems with tools like MathJax, especially if these tools are run at the server-side. Bug: 54624 Change-Id: I1650e6ec2ccefff6335fbc36bbe8ca8f59db0faa
119 lines
4.2 KiB
OCaml
119 lines
4.2 KiB
OCaml
%{
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open Tex
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let sq_close_ri = HTMLABLEC(FONT_UFH,"]", "]")
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%}
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%token <Tex.render_t> LITERAL DELIMITER
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%token <string> FUN_AR2 FUN_INFIX FUN_AR1 DECL FUN_AR1nb FUN_AR1opt BIG FUN_AR2nb
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%token <string*string> BOX
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%token <string*(string*string)> FUN_AR1hl
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%token <string*Tex.font_force> FUN_AR1hf DECLh
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%token <string*(Tex.t->Tex.t->string*string*string)> FUN_AR2h
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%token <string*(Tex.t list->Tex.t list->string*string*string)> FUN_INFIXh
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%token EOF CURLY_OPEN CURLY_CLOSE SUB SUP SQ_CLOSE NEXT_CELL NEXT_ROW
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%token BEGIN__MATRIX BEGIN_PMATRIX BEGIN_BMATRIX BEGIN_BBMATRIX BEGIN_VMATRIX BEGIN_VVMATRIX BEGIN_CASES BEGIN_ARRAY BEGIN_ALIGN BEGIN_ALIGNAT BEGIN_SMALLMATRIX
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%token END__MATRIX END_PMATRIX END_BMATRIX END_BBMATRIX END_VMATRIX END_VVMATRIX END_CASES END_ARRAY END_ALIGN END_ALIGNAT END_SMALLMATRIX
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%token LEFT RIGHT
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%type <Tex.t list> tex_expr
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%start tex_expr
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%%
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tex_expr:
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expr EOF { $1 }
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| ne_expr FUN_INFIX ne_expr EOF
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{ [TEX_INFIX($2,$1,$3)] }
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| ne_expr FUN_INFIXh ne_expr EOF
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{ let t,h=$2 in [TEX_INFIXh(t,h,$1,$3)] }
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expr:
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/* */ { [] }
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| ne_expr { $1 }
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ne_expr:
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lit_aq expr { $1 :: $2 }
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| litsq_aq expr { $1 :: $2 }
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| DECLh expr { let t,h = $1 in [TEX_DECLh(t,h,$2)] }
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litsq_aq:
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litsq_zq { $1 }
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| litsq_dq { let base,downi = $1 in TEX_DQ(base,downi) }
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| litsq_uq { let base,upi = $1 in TEX_UQ(base,upi)}
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| litsq_fq { $1 }
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litsq_fq:
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litsq_dq SUP lit { let base,downi = $1 in TEX_FQ(base,downi,$3) }
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| litsq_uq SUB lit { let base,upi = $1 in TEX_FQ(base,$3,upi) }
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litsq_uq:
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litsq_zq SUP lit { $1,$3 }
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litsq_dq:
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litsq_zq SUB lit { $1,$3 }
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litsq_zq:
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| SQ_CLOSE { TEX_LITERAL sq_close_ri }
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expr_nosqc:
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/* */ { [] }
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| lit_aq expr_nosqc { $1 :: $2 }
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lit_aq:
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lit { $1 }
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| lit_dq { let base,downi = $1 in TEX_DQ(base,downi) }
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| lit_uq { let base,upi = $1 in TEX_UQ(base,upi)}
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| lit_dqn { TEX_DQN($1) }
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| lit_uqn { TEX_UQN($1) }
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| lit_fq { $1 }
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lit_fq:
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lit_dq SUP lit { let base,downi = $1 in TEX_FQ(base,downi,$3) }
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| lit_uq SUB lit { let base,upi = $1 in TEX_FQ(base,$3,upi) }
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| lit_dqn SUP lit { TEX_FQN($1, $3) }
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lit_uq:
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lit SUP lit { $1,$3 }
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lit_dq:
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lit SUB lit { $1,$3 }
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lit_uqn:
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SUP lit { $2 }
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lit_dqn:
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SUB lit { $2 }
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left:
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LEFT DELIMITER { $2 }
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| LEFT SQ_CLOSE { sq_close_ri }
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right:
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RIGHT DELIMITER { $2 }
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| RIGHT SQ_CLOSE { sq_close_ri }
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lit:
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LITERAL { TEX_LITERAL $1 }
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| DELIMITER { TEX_LITERAL $1 }
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| BIG DELIMITER { TEX_BIG ($1,$2) }
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| BIG SQ_CLOSE { TEX_BIG ($1,sq_close_ri) }
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| left expr right { TEX_LR ($1,$3,$2) }
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| FUN_AR1 lit { TEX_FUN1($1,$2) }
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| FUN_AR1nb lit { TEX_FUN1nb($1,$2) }
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| FUN_AR1hl lit { let t,h=$1 in TEX_FUN1hl(t,h,$2) }
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| FUN_AR1hf lit { let t,h=$1 in TEX_FUN1hf(t,h,$2) }
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| FUN_AR1opt expr_nosqc SQ_CLOSE lit { TEX_FUN2sq($1,TEX_CURLY $2,$4) }
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| FUN_AR2 lit lit { TEX_FUN2($1,$2,$3) }
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| FUN_AR2nb lit lit { TEX_FUN2nb($1,$2,$3) }
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| FUN_AR2h lit lit { let t,h=$1 in TEX_FUN2h(t,h,$2,$3) }
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| BOX { let bt,s = $1 in TEX_BOX (bt,s) }
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| CURLY_OPEN expr CURLY_CLOSE
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{ TEX_CURLY $2 }
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| CURLY_OPEN ne_expr FUN_INFIX ne_expr CURLY_CLOSE
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{ TEX_INFIX($3,$2,$4) }
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| CURLY_OPEN ne_expr FUN_INFIXh ne_expr CURLY_CLOSE
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{ let t,h=$3 in TEX_INFIXh(t,h,$2,$4) }
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| BEGIN__MATRIX matrix END__MATRIX { TEX_MATRIX ("matrix", $2) }
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| BEGIN_PMATRIX matrix END_PMATRIX { TEX_MATRIX ("pmatrix", $2) }
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| BEGIN_BMATRIX matrix END_BMATRIX { TEX_MATRIX ("bmatrix", $2) }
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| BEGIN_BBMATRIX matrix END_BBMATRIX { TEX_MATRIX ("Bmatrix", $2) }
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| BEGIN_VMATRIX matrix END_VMATRIX { TEX_MATRIX ("vmatrix", $2) }
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| BEGIN_VVMATRIX matrix END_VVMATRIX { TEX_MATRIX ("Vmatrix", $2) }
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| BEGIN_ARRAY matrix END_ARRAY { TEX_MATRIX ("array", $2) }
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| BEGIN_ALIGN matrix END_ALIGN { TEX_MATRIX ("aligned", $2) }
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| BEGIN_ALIGNAT matrix END_ALIGNAT { TEX_MATRIX ("alignedat", $2) }
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| BEGIN_SMALLMATRIX matrix END_SMALLMATRIX { TEX_MATRIX ("smallmatrix", $2) }
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| BEGIN_CASES matrix END_CASES { TEX_MATRIX ("cases", $2) }
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matrix:
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line { [$1] }
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| line NEXT_ROW matrix { $1::$3 }
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line:
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expr { [$1] }
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| expr NEXT_CELL line { $1::$3 }
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;;
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