---
-
  name: unicode-override
  tag: "*"
  match: "@data-unicode"
  replace: 
  - x: "@data-unicode"

-
  name: default
  tag: msqrt
  match: "."
  replace: 
  # example show use of {}s even when not needed, so no testing
  - test:
      if: "$LaTeX_UseShortName"
      then: [t: "\\s{"]
      else: [t: "\\sqrt{"]
  - x: "*[1]"
  - t: "}"


-
  name: default
  tag: mroot
  match: "."
  replace: 
  # example show use of {}s even when not needed, so no testing
  - test:
      if: "$LaTeX_UseShortName"
      then: [t: "\\s["]
      else: [t: "\\sqrt["]
  - x: "*[2]"
  - t: "]{"
  - x: "*[1]"
  - t: "}"

-
  name: default
  tag: mfrac
  match: "."
  replace: 
  # example show use of {}s even when not needed, so no testing
  - test:
      if: "$LaTeX_UseShortName"
      then: [t: "\\f{"]
      else: [t: "\\frac{"]
  - x: "*[1]"
  - t: "}{"
  - x: "*[2]"
  - t: "}"

-
  name: binomial-frac
  tag: mrow
  match: "IsBracketed(., '(', ')') and *[2][self::m:mfrac][@linethickness=0]"
  replace: 
  - t: "\\binom{"
  - x: "*[2]/*[1]"
  - t: "}{"
  - x: "*[2]/*[2]"
  - t: "}"


- name: binomial-table
  tag: mrow
  match: "IsBracketed(., '(', ')') and *[2][self::m:mtable][count(*)=2 and count(*[1])=1] and contains(@intent, 'binomial(')"
  replace:
  - t: "\\binom{"
  - x: "*[2]/*[1]/*[1]/*[1]"
  - t: "}{"
  - x: "*[2]/*[2]/*[1]/*[1]"
  - t: "}"

# Matrix/Determinant rules
# matrix and determinant are the same other than "matrix"/"determinant" based on the bracketing chars
# we don't do spatial layout, instead the beginning/ending of each row uses the enlarged bracketing chars
-
  name: default-matrix
  tag: mrow
  variables:
  - MatrixType: "IfThenElse(*[1][.='('], 'pmatrix', 
                 IfThenElse(*[1][.='['], 'bmatrix',
                 IfThenElse(*[1][.='|'], 'vmatrix',
                 IfThenElse(*[1][.='‖'], 'Vmatrix','Bmatrix')
                )))"
  - ShortMatrixType: "IfThenElse(*[1][.='('], 'bpm', 
                 IfThenElse(*[1][.='['], 'bbm',
                 IfThenElse(*[1][.='|'], 'bvm',
                 IfThenElse(*[1][.='‖'], 'bVm','bBm')
                )))"
  match:
  - "*[2][self::m:mtable] and"
  - "(IsBracketed(., '(', ')') or IsBracketed(., '[', ']') or"
  - " IsBracketed(., '|', '|') or IsBracketed(., '‖', '‖') or IsBracketed(., '{', '}') )"
  replace:
  - t: "𝐖\\begin{"
  - x: "string($MatrixType)"     # need to get $MatrixType eval'd so that it is converted to braille (doesn't work if I do it in 'variables') 
  - t: "}𝐖"
  - x: "*[2]"
  - t: "𝐖\\end{"
  - x: "string($MatrixType)"     # need to get $MatrixType eval'd so that it is converted to braille (doesn't work if I do it in 'variables') 
  - t: "}𝐖"

-
  name: default-mtable
  tag: mtable
  match: "."
  replace: [x: "*"]
-
  name: default
  tag: [mtr, mlabeledtr]
  match: "."
  replace:
  #  - test:
  #     if: .[self::m:mlabeledtr]
  #     then:
  #        - t: "⠗⠕⠺W⠇⠁⠃⠑⠇⠸⠒"  # "row label:"
  #        - x: "*[1]/*"           # contents of row label
  #  - test:
  #     if: .[self::m:mlabeledtr]
  #     then: [x: "*[position()>1]"]
  #     else: {x: "*"}
  - x: "*"
  - test: 
      if: "following-sibling::*"
      then: [t: "𝐖\\\\𝐖"]

-
  name: default
  tag: mtd
  match: "."
  replace:
  - x: "*"
  - test:
      if: "following-sibling::*"
      then: [t: "𝐖&𝐖"]

-
  name: no-content
  tag: math
  match: "not(*)"      # empty
  replace: [t: "𝐖"]    # not sure that is right, but this shouldn't happen

-
  name: default
  tag: math
  match: "."
  variables:
  - MatchingWhitespace: "false()"
  replace: [x: "*"]

-
  name: empty-mrow
  tag: mrow
  match: "not(*)"
  replace: [t: "𝐖"] # not sure what is correct -- if in a fraction, probably something is better than nothing

-
  name: default
  tag: mrow
  match: "."
  replace: [x: "*"]


# FIX: need to deal with ~ ^ \
#  they have macros \textasciitilde, \textasciicircum, and \textbackslash
#  these probably aren't appropriate for EuroBraille
-
  # it seems that if a matching vertical bar is the start char, then it has a space after it
  name: vertical-bar
  tag: mo
  match: ".='|'"
  replace:
  - x: "text()"
  - test:
      if: "not(preceding-sibling::*)"
      then: [t: "𝐖"]

-
  name: default
  tag: mo
    # add spaces around comparison operators unless they are in a script position,
  match: "."
  replace:
  - test:
      # if: "parent::m:mrow and not(IsInDefinition(., 'Braille', 'NoSpacesBefore'))"
      # then: [t: "𝐖"]
      if: "parent::m:mrow"
      then_test:
          if: "not(IsInDefinition(., 'Braille', 'NoSpacesBefore'))"
          then: [t: "𝐖"]
  - x: "text()"
  - test:
      if: "parent::m:mrow and (.=',' or .=';')"     # are there others???
      then: [t: "𝐖"]


-
  name: default
  tag: mn
  match: "."
  replace:
  - x: "text()" 
    
-
  # FIX: need to deal with all caps
  name: named-functions
  tag: [mi, mtext]
  match: "IsInDefinition(., 'Braille', 'LateXFunctionNames') and not($LaTeX_UseShortName)"
  replace:
  - t: "\\"
  - x: "text()"
  - t: "𝐖"
    
-
  # FIX: need to deal with all caps
  name: default
  tag: [mi, mtext]
  match: "."
  replace:
  - x: "text()" 

-
  name: default
  tag: mstyle
  match: "."
  replace:
  - test:
      if: "*"
      then: [x: "*"]
      # else do nothing -- no content

-
  # FIX: what should be output
  name: mhchem-hack
  # this captures the output for the mhchem's "<=>", "<<=>", and "<=>>" output (there are no Unicode arrows for them)
  # this isn't a perfect match, but should be good enough and allows merging all three (see github.com/NSoiffer/MathCAT/issues/60)
  tag: mover
  match:
  -    "*[1][substring(., 1, 1)='↽'] and"
  -    "*[2][substring(., string-length(), 1)='⇀']"
  replace:
  - t: "𝐖"
  - test:
      if: "*[1][self::m:mrow]"
      then_test:
          if: "*[2][self::m:mrow]"
          then: [t: "🣒"]    # this is currently unassigned and may get used by UTC at some point (<=>)
          else: [t: "🣔"]    # this is currently unassigned and may get used by UTC at some point (<<=>)
      else: [t: "🣓"]        # this is currently unassigned and may get used by UTC at some point (<==>>)
  - t: "𝐖"

-
  name: "hat"
  tag: "mover"
  match: "*[2][.='^']"
  replace:
  - t: "𝐖\\hat{"
  - x: "*[1]"
  - t: "}𝐖"

-
  name: "bar"
  tag: "mover"
  match: "*[2][.='_' or .='¯']"
  replace:
  - test:
      if: "$LaTeX_UseShortName"
      then: [t: "\\ol{"]
      else: [t: "\\overline{"]
  - x: "*[1]"
  - t: "}"

-
  name: "vector"
  tag: "mover"
  match: "*[2][.='→']"
  replace:
  - t: "\\vec{"
  - x: "*[1]"
  - t: "}"

-
  name: pseudo-scripts
  tag: "msup"
  match: "*[2][translate(., \"'′″‴⁗°\", '')='']"
  replace:
  - x: "*[1]"
  - x: "*[2]"


-
  name: "default"
  tag: [msub, msup, msubsup]
  match: "."
  replace:
  - x: "*[1]"
  - test:
      if: "self::m:msup"
      then: [t: "^"]
      else: [t: "_"]
  - test:
      if: "*[2][IsNode(., 'leaf') and string-length(.) = 1]"
      then: [x: "*[2]"]
      else:
      - t: "{"
      - x: "*[2]"
      - t: "}"
  - test:
      if: "self::m:msubsup"
      then:
      - t: "^"
      - test:
          if: "*[3][IsNode(., 'leaf') and string-length(.) = 1]"
          then: [x: "*[3]"]
          else:
          - t: "{"
          - x: "*[3]"
          - t: "}"
  - t: "𝐖"    # need to separate script from what follows

-
  name: "movable-limits"
  tag: [munder, mover, munderover]
  match: "*[1][IsInDefinition(., 'Braille', 'MovableLimitsLargeOps') or @movablelimits='true']"
  replace:
  - x: "*[1]"
  - test:
      if: "self::m:mover"
      then: [t: "^"]
      else: [t: "_"]
  - test:
      if: "*[2][IsNode(., 'leaf') and string-length(.) = 1]"
      then: [x: "*[2]"]
      else:
      - t: "{"
      - x: "*[2]"
      - t: "}"
  - test:
      if: "self::m:munderover"
      then:
      - t: "^"
      - test:
          if: "*[3][IsNode(., 'leaf') and string-length(.) = 1]"
          then: [x: "*[3]"]
          else:
          - t: "{"
          - x: "*[3]"
          - t: "}"
  - t: "𝐖"    # need to separate script from what follows

-
  name: "default"
  tag: [munder, mover, munderover]
  match: "."
  replace:
  - test:
      if: "self::m:munderover"
      then: [t: "\\overset{"]
  - test:
      if: "self::m:munder or self::m:undermover"
      then: [t: "\\underset{"]
      else: [t: "\\overset{"]
  - x: "*[2]"
  - t: "}{"
  - x: "*[1]"
  - t: "}"
  - test:
      if: "self::m:munderover"
      then: [t: "}"]

-
  name: default
  tag: mmultiscripts
  match: "."
  variables:
  # computing the number of postscripts is messy because of <mprescripts> being optionally present -- we use "mod" to get the count right
  - Prescripts: "m:mprescripts/following-sibling::*"
  - NumChildren: "count(*)"       # need to stash this since the count is wrong inside '*[...]' below
  - Postscripts: "*[position()>1 and position() < (last() + ($NumChildren mod 2) -count($Prescripts))]"
  replace:
  - test:
      if: "$Prescripts"
      then:
      - test:
          if: "preceding-sibling::*"
          then: [t: "{}"]         # empty base not needed if this is the only expr
      - test:
          if: "not($Prescripts[1][self::m:none])"
          then_test:
              if: "$Prescripts[1][IsNode(., 'leaf') and string-length(.) = 1]"
              then: [x: "$Prescripts[1]"]
              else:
              - t: "_{"
              - x: "$Prescripts[1]"
              - t: "}"
      - test:
          if: "not($Prescripts[2][self::m:none])"
          then_test:
              if: "$Prescripts[2][IsNode(., 'leaf') and string-length(.) = 1]"
              then: [x: "$Prescripts[2]"]
              else:
              - t: "^{"
              - x: "$Prescripts[2]"
              - t: "}"
      - test:
          if: "count($Prescripts)>2"
          then:
          - test:
              if: "not($Prescripts[3][self::m:none])"
              then_test:
                  if: "$Prescripts[3][IsNode(., 'leaf') and string-length(.) = 1]"
                  then: [x: "$Prescripts[3]"]
                  else:
                  - t: "_{"
                  - x: "$Prescripts[3]"
                  - t: "}"
          - test:
              if: "not($Prescripts[4][self::m:none])"
              then_test:
                  if: "$Prescripts[4][IsNode(., 'leaf') and string-length(.) = 1]"
                  then: [x: "$Prescripts[4]"]
                  else:
                  - t: "^{"
                  - x: "$Prescripts[4]"
                  - t: "}"
          - test:
              if: "count($Prescripts) > 4"   # give up and just dump them out so at least the content is there
              then: [x: "$Prescripts[position() > 4]"]

  - x: "*[1]"
  - test:
      if: "$Postscripts"
      then:
      - test:
          if: "not($Postscripts[1][self::m:none])"
          then_test:
              if: "$Postscripts[1][IsNode(., 'leaf') and string-length(.) = 1]"
              then: [x: "$Postscripts[1]"]
              else:
              - t: "_{"
              - x: "$Postscripts[1]"
              - t: "}"
      - test:
          if: "not($Postscripts[2][self::m:none])"
          then_test:
              if: "$Postscripts[2][IsNode(., 'leaf') and string-length(.) = 1]"
              then: [x: "$Postscripts[2]"]
              else:
              - t: "^{"
              - x: "$Postscripts[2]"
              - t: "}"
      - test:
          if: "count($Postscripts)>2"
          then:
          - test:
              if: "not($Postscripts[3][self::m:none])"
              then_test:
                  if: "$Postscripts[3][IsNode(., 'leaf') and string-length(.) = 1]"
                  then: [x: "$Postscripts[3]"]
                  else:
                  - t: "_{"
                  - x: "$Postscripts[3]"
                  - t: "}"
          - test:
              if: "not($Postscripts[4][self::m:none])"
              then_test:
                  if: "$Postscripts[4][IsNode(., 'leaf') and string-length(.) = 1]"
                  then: [x: "$Postscripts[4]"]
                  else:
                  - t: "^{"
                  - x: "$Postscripts[4]"
                  - t: "}"
          - test:
              if: "count($Postscripts)>4"
              then:
              - test:
                  if: "not($Postscripts[5][self::m:none])"
                  then_test:
                      if: "$Postscripts[5][IsNode(., 'leaf') and string-length(.) = 1]"
                      then: [x: "$Postscripts[5]"]
                      else:
                      - t: "_{"
                      - x: "$Postscripts[5]"
                      - t: "}"
              - test:
                  if: "not($Postscripts[6][self::m:none])"
                  then_test:
                      if: "$Postscripts[6][IsNode(., 'leaf') and string-length(.) = 1]"
                      then: [x: "$Postscripts[6]"]
                      else:
                      - t: "^{"
                      - x: "$Postscripts[6]"
                      - t: "}"
              - test:
                  if: "count($Postscripts)>6"
                  then:
                  - test:
                      if: "not($Postscripts[7][self::m:none])"
                      then_test:
                          if: "$Postscripts[7][IsNode(., 'leaf') and string-length(.) = 1]"
                          then: [x: "$Postscripts[7]"]
                          else:
                          - t: "_{"
                          - x: "$Postscripts[7]"
                          - t: "}"
                  - test:
                      if: "not($Postscripts[8][self::m:none])"
                      then_test:
                          if: "$Postscripts[8][IsNode(., 'leaf') and string-length(.) = 1]"
                          then: [x: "$Postscripts[8]"]
                          else:
                          - t: "^{"
                          - x: "$Postscripts[8]"
                          - t: "}"
                  - test:
                      if: "count($Postscripts) > 8"   # give up and just dump them out so at least the content is there
                      then:
                      - x: "$Postscripts[position() > 8]"
  - t: "𝐖"    # need to separate script from what follows
                

-
  # Note: @notation can contain more than one value
  # LateX doesn't have a way to deal with most of these, so I've made up something that is probably readable.
  # Because notation can have multiple values, there is a match to open the construct and another to close it.
  # The MathCAT rules don't have a way to loop through the values, so they all have to be listed out.
  #
  # We place left and right outside of other notations because that doesn't require anything special in LaTeX
  # The order of the matches potentially might matter for display, but for comprehension, it shouldn't matter
  name: default
  tag: menclose
  match: "."
  variables:
  - IsBox: "contains(concat(' ', normalize-space(@notation), ' '), ' left ') and
            contains(@notation,'top') and contains(@notation,'bottom') and
            contains(concat(' ', normalize-space(@notation), ' '), ' right ')"                     # avoid 'leftarrow' and'rightarrow'

  replace:
  - test:
      if: "not($IsBox) and contains(concat(' ', normalize-space(@notation), ' '), ' left ')"                  # avoid 'leftarrow'
      then: [t: "|"]
  - test:
      if: "contains(@notation,'box') or $IsBox"                  # box and roundedbox
      then:
      - t: "\\boxed{"                                  # square 
  - test:
      if: "contains(@notation,'circle')"
      then:
      - t: "\\circle{"                                  # circle
  - test:
      if: "contains(@notation,'updiagonalstrike')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'downdiagonalstrike')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'verticalstrike')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'horizontalstrike')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'leftarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' rightarrow ')"  # avoid "leftrightarrow" match
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'northeastarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'uparrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' southeastarrow ')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' downarrow ')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' southwestarrow ')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'northwestarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'updownarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'leftrightarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'northeastsouthwestarrow')"
      then: [t: "\\overwrite{"]
  - test:
      if: "contains(@notation,'northwestsoutheastarrow')"
      then: [t: "\\overwrite{"]
#  - test:
#      if: ".[contains(@notation,'actuarial')]"
#      then: [t: actuarial symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'madrub')]"
#      then: [t: arabic factorial symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'longdiv') or not(@notation) or normalize-space(@notation) ='']"      # default
#      then: [t: long division symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'radical')]"
#      then: [t: square root, pause: short]
  - test:
      if: "not($IsBox) and contains(@notation,'top')"
      then: [t: "\\overline{"]                                                                
  - test:
      if: "not($IsBox) and contains(@notation,'bottom')"
      then: [t: "\\underline{"]                                                                

  - x: "*[1]"

  - test:
      if: "$IsBox or contains(@notation,'box')"                  # box and roundedbox
      then:
      - t: "}"                                  # square 
  - test:
      if: "contains(@notation,'circle')"
      then:
      - t: "}"                                  # circle
  - test:
      if: "contains(@notation,'updiagonalstrike')"
      then: [t: "}{\\senwline}"]
  - test:
      if: "contains(@notation,'downdiagonalstrike')"
      then: [t: "}{\\neswline}"]
  - test:
      if: "contains(@notation,'verticalstrike')"
      then: [t: "}{\\vline}"]
  - test:
      if: "contains(@notation,'horizontalstrike')"
      then: [t: "}{\\hline}"]
  - test:
      if: "contains(@notation,'leftarrow')"
      then: [t: "}{\\longleftarrow}"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' rightarrow ')"  # avoid "leftrightarrow" match
      then: [t: "}{\\longrightarrow}"]
  - test:
      if: "contains(@notation,'northeastarrow')"
      then: [t: "}{\\nearrow}"]
  - test:
      if: "contains(@notation,'uparrow')"
      then: [t: "}{\\uparrow}"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' southeastarrow ')"
      then: [t: "}{\\searrow}"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' downarrow ')"
      then: [t: "}{\\downarrow}"]
  - test:
      if: "contains(concat(' ', normalize-space(@notation), ' '), ' southwestarrow ')"
      then: [t: "}{\\swarrow}"]
  - test:
      if: "contains(@notation,'northwestarrow')"
      then: [t: "}{\\nwarrow}"]
  - test:
      if: "contains(@notation,'updownarrow')"
      then: [t: "}{\\updownarrow}"]
  - test:
      if: "contains(@notation,'leftrightarrow')"
      then: [t: "}{\\longleftrightarrow}"]
  - test:
      if: "contains(@notation,'northeastsouthwestarrow')"
      then: [t: "}{\\neswarrow}"]
  - test:
      if: "contains(@notation,'northwestsoutheastarrow')"
      then: [t: "}{\\nwsearrow}"]
#  - test:
#      if: ".[contains(@notation,'actuarial')]"
#      then: [t: actuarial symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'madrub')]"
#      then: [t: arabic factorial symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'longdiv') or not(@notation) or normalize-space(@notation) ='']"      # default
#      then: [t: long division symbol, pause: short]
#  - test:
#      if: ".[contains(@notation,'radical')]"
#      then: [t: square root, pause: short]
  - test:
      if: "not($IsBox) and contains(@notation,'top')"
      then: [t: "}"]                                                                
  - test:
      if: "not($IsBox) and contains(@notation,'bottom')"
      then: [t: "}"]                                                                
  - test:
      if: "not($IsBox) and contains(concat(' ', normalize-space(@notation), ' '), ' right ')"                  #avoid 'rightarrow'
      then: [t: "|"]

-
  name: default
  tag: ms
  match: "."
  replace:
    - test:
        if: "string(@lquote)!=''"
        then: [x: "@lquote"]
        else: [t: "\""]
    - x: "text()"
    - test:
        if: "string(@rquote)!=''"
        then: [x: "@rquote"]
        else: [t: "\""]

-
  name: default
  tag: semantics
  match: "."
  replace: 
    - x: "*[1]"             #/ FIX: should prioritize @encoding="MathML-Presentation" and @encoding="application/mathml-presentation+xml"

-
  name: default-children
  tag: "*"
  match: "*"    # make sure there are children
  replace: 
  - t: "unknown math m l element"
  - x: "name(.)"
  - x: "*"

-
  # at this point, we know there are no children -- might be no text
  name: default-no-children
  tag: "*"
  match: "text()"
  replace: 
  - t: unknown math m l element
  - x: "name(.)"
  - x: "text()"

-
  name: default-no-text
  tag: "*"
  match: "."
  replace: 
  - t: "empty unknown math m l element"
  - x: "name(.)"