---
- name: intent-literal-silent
  tag: [mi, mo, mn]
  match: "contains(@data-intent-property, ':silent:')"
  # say nothing
  replace: []

# handling of negative numbers that come from 'intent' is hard -- we do something that is close to right here 
- name: intent-literal-negative-number
  tag: mn
  match: "starts-with(text(), '-')"
  replace:
  - t: "minus"      # phrase(10 'minus' 4 equals 6)
  - x: "translate(text(), '-_', '')"

- name: default
  tag: square-root
  match: "."
  replace:
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "the"]      # phrase('the' square root of 25)
  - test:
      if: $ClearSpeak_Roots = 'PosNegSqRoot' or $ClearSpeak_Roots = 'PosNegSqRootEnd'
      then:
      - bookmark: "*[1]/@id"
      - test:
          if: parent::*[self::m:negative]
          then: [t: "negative"]      # phrase(minus 4 is a 'negative' number)
          else: [t: "positive"]      # phrase(10 is a 'positive' number)
  - t: "square root"      # phrase(8 is the 'square root' of 64)
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "of"]      # phrase(the square root 'of' 5)
      else: [pause: short]
  - x: "*[1]"
  - test:
    - if: "$ClearSpeak_Roots = 'RootEnd' or $ClearSpeak_Roots = 'PosNegSqRootEnd'"
      then:
      - pause: short
      - t: "end root"      # phrase(the square root of x 'end root')
      - pause: medium
    - else_if: "IsNode(*[1], 'simple')"
      then: [pause: short]
      else: [pause: long]

- name: default
  tag: root
  match: "."
  replace:
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "the"]      # phrase(6 is 'the' square root of 36)
  - test:
      if: $ClearSpeak_Roots = 'PosNegSqRoot' or $ClearSpeak_Roots = 'PosNegSqRootEnd'
      then:
      - test:
          if: "parent::m:negative or parent::m:positive"
          then: [bookmark: "parent/@id"]
      - test:
          if: parent::m:negative
          then: [t: "negative"]      # phrase(minus 6 is a 'negative' number)
          else: [t: "positive"]      # phrase(10 is a 'positive' number)
  - test:
      if: "*[2][self::m:mn and not(contains(., '.'))]"
      then_test:
      - if: "*[2][text()='2']"
        then: [t: "square root"]      # phrase(5 is the 'square root' of 25)
      - else_if: "*[2][text()='3']"
        then: [t: "cube root"]      # phrase(5 is the 'cube root' of 625)
      - else: [x: "ToOrdinal(*[2])", t: "root"]      # phrase(the square 'root' of 25)
      else:
      - test:
          if: "*[2][self::m:mi][string-length(.)=1]"
          then:
          - x: "*[2]"
          - pronounce: [{text: "-th"}, {ipa: "θ"}, {sapi5: "th"}, {eloquence: "T"}]
          else: {x: "*[2]"}
      - t: "root"      # phrase(the square 'root' of 36)
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "of"]      # phrase(the square root 'of' 36)
  - x: "*[1]"
  - test:
      if: $ClearSpeak_Roots = 'RootEnd' or $ClearSpeak_Roots = 'PosNegSqRootEnd'
      then:
      - pause: short
      - t: "end root"      # phrase(start the fifth root of x 'end root')
      - pause: medium
      else_test:
        if: IsNode(*[1], 'simple')
        then: [pause: short]
        else: [pause: long]

# The 'negative' rule interacts with the msqrt/mroot rules as those might pick off this case ("the negative square root of x")
- name: negative_and_positive
  tag: [negative, positive]
  match: "."
  replace:
  - test:
      if:
      - "*[1][self::m:square-root or self::m:root] and"
      - "($ClearSpeak_Roots = 'PosNegSqRoot' or $ClearSpeak_Roots = 'PosNegSqRootEnd')"
      then: {t: ""}
      else:
      - bookmark: "@id"
      - test:
          if: "self::m:negative"
          then: [t: "negative"]      # phrase(minus 5 is a 'negative' number)
          else: [t: "positive"]      # phrase(7 is a 'positive' number)
  - x: "*[1]"

# Fraction rules
# Mixed numbers mostly "just work" because the invisible char reads as "and" and other parts read properly on their own

# Units (e.g., meters per second)
- name: per-fraction
  tag: fraction
  match: "$ClearSpeak_Fractions='Per'"
  replace:
  - x: "*[1]"
  - t: "per"      # phrase('5 meters 'per' second)
  - x: "*[2]"

- name: common-fraction
  tag: fraction
  match:
  - "($ClearSpeak_Fractions='Auto' or $ClearSpeak_Fractions='Ordinal' or $ClearSpeak_Fractions='EndFrac') and"
  - "*[1][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or text()<20)]   and"
  - "*[2][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or (2<= text() and text()<=10))]"
  variables: [IsPlural: "*[1]!=1"]
  replace:
  - x: "*[1]"
  - x: "ToOrdinal(*[2], true(), $IsPlural)"   # extra args specify fractional ordinal and whether it is plural

- name: common-fraction-mixed-number
  tag: fraction
  match:
  - "preceding-sibling::*[1][self::m:mo][text()='⁤'] and" # preceding element is invisible plus
  - "($ClearSpeak_Fractions='Auto' or $ClearSpeak_Fractions='Ordinal' or $ClearSpeak_Fractions='EndFrac') and"
  - "*[1][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or text()<20)]   and"
  - "*[2][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or (2<= text() and text()<=10))]"
  variables: [IsPlural: "*[1]!=1"]
  replace:
  - x: "*[1]"
  - x: "ToOrdinal(*[2], true(), $IsPlural)"   # extra args specify fractional ordinal and whether it is plural


- name: fraction-over-simple
  tag: fraction
  match:
  - "($ClearSpeak_Fractions='Over' or $ClearSpeak_Fractions='FracOver' or $ClearSpeak_Fractions='OverEndFrac') or"
  - "( not($ClearSpeak_Fractions='General' or $ClearSpeak_Fractions='GeneralEndFrac') and"
  - "  (IsNode(*[1],'simple') and IsNode(*[2],'simple')) )" # simple fraction in ClearSpeak spec
  replace:
  - test:
      if: "$ClearSpeak_Fractions='FracOver'"
      then:
      - test:
          if: "$Verbosity!='Terse'"
          then: [ot: "the"]
      - t: "fraction"      # phrase(the 'fraction' with 3 over 4)
  - x: "*[1]"
  - t: "over"      # phrase(the fraction 3 'over' 4)
  - x: "*[2]"
  - test:
      # very ugly!!! -- replicate nested ordinal fraction as they are an exception
      if: "$ClearSpeak_Fractions='OverEndFrac' or ($ClearSpeak_Fractions='EndFrac' and not( ($ClearSpeak_Fractions='Auto' or $ClearSpeak_Fractions='Ordinal' or $ClearSpeak_Fractions='EndFrac') and *[1][*[1][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or text()<20)]   and *[2][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or (2<= text() and text()<=10))] ] and *[2][*[1][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or text()<20)]   and *[2][self::m:mn][not(contains(., '.')) and ($ClearSpeak_Fractions='Ordinal' or (2<= text() and text()<=10))] ] ) )"
      then:
      - pause: short
      - t: "end fraction"      # phrase(7 over 8 'end fraction')
      - pause: short

- # fraction with text or numbers followed by text in both numerator and denominator
  name: fraction-over-text
  tag: fraction
  match:
  - "not($ClearSpeak_Fractions='General' or $ClearSpeak_Fractions='GeneralEndFrac') and"
  - "( "
  - "  ((*[1][self::m:mi or self::m:mtext][string-length(.)>1]) or " # fractions with text
  - "   (*[1][self::m:mrow][count(*)=3][ "
  - "        *[1][self::m:mn] and "
  - "        *[2][self::m:mo][text()='⁢'] and " # invisible times
  - "        *[3][self::m:mi or self::m:mtext][string-length(.)>1] ]) ) and"
  - "  ((*[2][self::m:mi or self::m:mtext][string-length(.)>1]) or " # fractions with text
  - "   (*[2][self::m:mrow][count(*)=3][ "
  - "        *[1][self::m:mn] and "
  - "        *[2][self::m:mo][text()='⁢'] and " # invisible times
  - "        *[3][self::m:mi or self::m:mtext][string-length(.)>1] ]) )"
  - ")"
  replace:
  - x: "*[1]"
  - t: "over"      # phrase(the fraction 3 'over' 4)
  - x: "*[2]"
  - test:
      if: "$ClearSpeak_Fractions='EndFrac' or $ClearSpeak_Fractions='OverEndFrac'"
      then:
      - pause: short
      - t: "end fraction"      # phrase(7 over 8 'end fraction')
      - pause: short

- name: default
  tag: fraction
  match: "."
  replace:
  - ot: "the"      # phrase(5 is 'the' square toot of 25)
  - t: "fraction with numerator"      # phrase(the 'fraction with numerator' 6)
  - test:
      if: not(IsNode(*[1], 'simple'))
      then: [pause: medium]
  - x: "*[1]"
  - pause: medium
  - t: "and denominator"      # phrase(the fraction with numerator 5 'and denominator' 8)
  - x: "*[2]"
  - pause: long
  - test:
      if: "$ClearSpeak_Fractions='EndFrac' or $ClearSpeak_Fractions='GeneralEndFrac'"
      then:
      - pause: short
      - t: "end fraction"      # phrase(the fraction with 3 over 4 'end fraction')
      - pause: short

# rules for functions raised to a power
# these could have been written on 'mrow' but putting them on msup seems more specific
# to see if it is a function, we look right to see if the following sibling is apply-function
- name: ClearSpeak-function-inverse
  tag: inverse-function
  match: "."
  replace:
  - test:
      if: $ClearSpeak_Trig = 'TrigInverse'
      then: [{x: "*[1]"}, {bookmark: "*[2]/@id"}, t: "inverse"]      # phrase(8 over 5 is the 'inverse' of 5 over 8)
      else_test:
        if: $ClearSpeak_Trig = 'ArcTrig'
        then: [bookmark: "*[2]/@id", t: "arc", x: "*[1]"]      # phrase(the 'arc' of a circle)
        else: [bookmark: "*[2]/@id", t: "inverse", x: "*[1]"] # default/Auto      # phrase(8 over 5 is the 'inverse' of 5 over 8)

- name: function-squared-or-cubed
  tag: power
  match:
  - "*[2][self::m:mn][text()='2' or text()='3'] and"
  - "following-sibling::*[1][self::m:mo][text()='⁡']" #invisible function apply
  replace:
  - x: "*[1]"
  - bookmark: "*[2]/@id"
  - test:
      if: "*[2][text()='2']"
      then: [t: "squared"]      # phrase(25 equals 5 'squared')
      else: [t: "cubed"]      # phrase(625 equals 5 'cubed')
- name: function-power
  tag: power
  match:
  - "following-sibling::*[1][self::m:mo][text()='⁡']" #invisible function apply
  replace:
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "the"]      # phrase('the' third power of 2)
  - bookmark: "*[2]/@id"
  - test:
      if: "*[2][self::m:mn][not(contains(., '.'))]"
      then: [x: "ToOrdinal(*[2])"]
      else: [x: "*[2]"]
  - t: "power of"      # phrase(the third 'power of' 6)
  - pause: short
  - x: "*[1]"

- name: AfterPower-nested
  tag: power
  match: # directly a superscript or an mrow that contains a superscript
  - "$ClearSpeak_Exponents = 'AfterPower' and"
  - "*[2][self::m:power or self::m:power or self::m:mrow[m:power]]"
  replace:
  - x: "*[1]"
  - t: "raised to the exponent"      # phrase(5 'raised to the exponent' x plus 1)
  - pause: short
  - x: "*[2]"
  - pause: short
  - t: "end exponent"      # phrase(5 raised to the exponent x plus 1 'end exponent')

- name: AfterPower-default
  tag: power
  match: "$ClearSpeak_Exponents = 'AfterPower'"
  replace:
  - x: "*[1]"
  - t: "raised to the power"      # phrase(x is 'raised to the power' 4)
  - x: "*[2]"
  - pause: short

- name: squared
  tag: power
  match: "*[2][self::m:mn][text()='2'] and $ClearSpeak_Exponents = 'Auto'"
  replace:
  - x: "*[1]"
  - bookmark: "*[2]/@id"
  - t: "squared"      # phrase(7 'squared' equals 49)

- name: cubed
  tag: power
  match: "*[2][self::m:mn][text()='3'] and $ClearSpeak_Exponents = 'Auto'"
  replace:
  - x: "*[1]"
  - bookmark: "*[2]/@id"
  - t: "cubed"      # phrase(5 'cubed' equals 125)

- name: simple-integer
  tag: power
  match: "*[2][self::m:mn][not(contains(., '.'))]"
  replace:
  - x: "*[1]"
  - t: "to the"      # phrase(2 raised 'to the' power 7)
  - test:
      if: "*[2][.>0]"
      then: {x: "ToOrdinal(*[2])"}
      else: {x: "*[2]"}
  - test:
      if: "$ClearSpeak_Exponents != 'Ordinal'"
      then: [t: "power"]      # phrase(2 raised to the 'power' 7)

- name: simple-negative-integer
  tag: power
  match:
  - "*[2][self::m:negative and"
  - "     *[1][self::m:mn][not(contains(., '.'))]"
  - "    ]"
  replace:
  - x: "*[1]"
  - t: "to the"      # phrase(2 raised 'to the' power 7)
  - x: "*[2]"
  - test:
      if: "$ClearSpeak_Exponents != 'Ordinal'"
      then: [t: "power"]      # phrase(2 raised to the 'power' 7)

- name: simple-var
  tag: power
  match: "*[2][self::m:mi][string-length(.)=1]"
  replace:
  - x: "*[1]"
  - t: "to the"      # phrase(3 raised 'to the' power 7)
  - x: "*[2]"
  - pronounce: [{text: "-th"}, {ipa: "θ"}, {sapi5: "th"}, {eloquence: "T"}]
  - test:
      if: "$ClearSpeak_Exponents != 'Ordinal'"
      then: [t: "power"]      # phrase(2 raised to the 'power' 7)

# match nested exponent, where the nested exponent is has the power 2 or 3 (n below)
#   [xxx]^n, - [xxx]^n, [xxx] var^n, -[xxx] var^n
# where xxx is a number or common fraction (or a var in the first two forms)
# short of creating a specialized built-in function, I don't see a way to eliminate a lot of repetition in the matches
# also really bad is that the test of a common fraction is replicated here (four times!)
# Note: the ClearSpeak doc doesn't say these only apply when the pref is "Auto",
#   but the test cases all fall back to "raised to the exponent" when not "Auto"
#   If these are allowed for non-Auto values, then you end up with "...power power...".
- # [xxx]^n
  name: nested-squared-or-cubed
  tag: power
  match:
  - "$ClearSpeak_Exponents = 'Auto' and"
  - "*[2][self::m:power]["
  - "     *[2][self::m:mn][text()='2' or text()='3'] and " # exp is 2 or 3
  # base is mn, mi, common fraction ([xxx] case)
  - "     *[1][self::m:mn or self::m:mi or "
  - "          self::m:fraction[*[1][self::m:mn][not(contains(., '.')) and text()<20]   and"
  - "                        *[2][self::m:mn][not(contains(., '.')) and 2<= text() and text()<=10]]"
  - "         ]"
  - "    ]"
  replace:
  - x: "*[1]"
  - t: "raised to the"      # phrase(x 'raised to the' second power)
  - x: "*[2]"
  - t: "power"      # phrase(x raised to the second 'power')

- # - [xxx]^n
  name: nested-negative-squared-or-cubed
  tag: power
  match:
  - "$ClearSpeak_Exponents = 'Auto' and"
  - " *[2][self::m:negative and "
  - "      *[1]/*[1][self::m:power]["
  - "                *[2][self::m:mn][text()='2' or text()='3'] and " # exp is 2 or 3"
  # base is mn, mi, common fraction ([xxx] case)
  - "                *[1][self::m:mn or self::m:mi or "
  - "                     self::m:fraction[*[1][self::m:mn][not(contains(., '.')) and text()<20]   and"
  - "                                   *[2][self::m:mn][not(contains(., '.')) and 2<= text() and text()<=10]]"
  - "               ]"
  - "          ]"
  - "     ]"
  replace:
  - x: "*[1]"
  - t: "raised to the"      # phrase(x 'raised to the' second power)
  - x: "*[2]"
  - t: "power"      # phrase(x raised to the second 'power')

- # [xxx] var^n
  name: nested-var-squared-or-cubed
  tag: power
  match:
  - "$ClearSpeak_Exponents = 'Auto' and"
  - "  *[2][self::m:mrow][count(*)=3][ "
  - "       *[3][self::m:power]["
  - "            *[2][self::m:mn][text()='2' or text()='3'] and " # exp is 2 or 3
  - "            *[1][self::m:mi]"
  - "           ] and "
  - "       *[2][self::m:mo][text()='⁢'] and " # invisible times
  # base is mn, or common fraction ([xxx] case)
  - "       *[1][self::m:mn or "
  - "            self::m:fraction[*[1][self::m:mn][not(contains(., '.')) and text()<20]   and"
  - "                          *[2][self::m:mn][not(contains(., '.')) and 2<= text() and text()<=10]]"
  - "           ]"
  - "      ]"
  replace:
  - x: "*[1]"
  - t: "raised to the"      # phrase(x 'raised to the' second power)
  - x: "*[2]"
  - t: "power"      # phrase(x raised to the second 'power')

- # -[xxx] var^n
  name: nested-negative-var-squared-or-cubed
  tag: power
  match:
  - "$ClearSpeak_Exponents = 'Auto' and"
  - "  *[2][self::m:mrow][count(*)=3][ "
  - "       *[3][self::m:power]["
  - "            *[2][self::m:mn][text()='2' or text()='3'] and " # exp is 2 or 3
  - "            *[1][self::m:mi]"
  - "           ] and "
  - "       *[2][self::m:mo][text()='⁢'] and " # invisible times
  - "       *[1][self::m:negative and "
  # base is mn, or common fraction ([xxx] case)
  - "            *[1][self::m:mn or "
  - "                 self::m:fraction[*[1][self::m:mn][not(contains(., '.')) and text()<20]   and"
  - "                                  *[2][self::m:mn][not(contains(., '.')) and 2<= text() and text()<=10]]"
  - "                ]"
  - "           ]"
  - "      ]"
  replace:
  - x: "*[1]"
  - t: "raised to the"      # phrase(x 'raised to the' second power)
  - x: "*[2]"
  - t: "power"      # phrase(x raised to the second 'power')

- name: default-exponent-power
  tag: power
  match: # directly a superscript or an mrow that contains a superscript
  - "*[2][self::m:power or self::m:power or self::m:mrow[m:power]]"
  replace:
  - x: "*[1]"
  - t: "raised to the exponent"      # phrase(x is 'raised to the exponent')
  - pause: short
  - x: "*[2]"
  - pause: short
  - t: "end exponent"      # phrase(and now 'end exponent' has been reached)

- name: default
  tag: power
  match: "."
  replace:
  - x: "*[1]"
  - t: "raised to the"      # phrase(x 'raised to the' second power)
  - x: "*[2]"
  - t: "power"      # phrase(x raised to the second 'power')

#
# Some rules on mrows
#
- # the inference rules lump absolute value and cardinality together, so those rules are implemented here
  name: ClearSpeak-absolute-value
  tag: absolute-value
  match: "."
  variables: [WordToSay: "IfThenElse($ClearSpeak_AbsoluteValue = 'Cardinality', 'cardinality', 'absolute value')"]
  replace:
  - test:
      if: "$Verbosity!='Terse'"
      then: [t: "the"]      # phrase('the' absolute value of 25)
  - x: "$WordToSay"
  - t: "of"      # phrase(the absolute value 'of' 25)
  - x: "*[1]"
  - test:
      if: "$ClearSpeak_AbsoluteValue = 'AbsEnd'"
      then:
      - pause: short
      - t: "end"      # phrase('end' absolute value)
      - x: "$WordToSay"
  - pause: short

- name: set
  tag: set
  match: "."
  replace:
  - test:
    - if: "count(*)=0"
      then: [t: "the empty set"]      # phrase('the empty set')
    - else_if: "count(*)=2"
      then:
      - test:
          if: "$Verbosity!='Terse'"
          then: [t: "the"]      # phrase('the' empty set)
      - t: "empty set"      # phrase(the 'empty set')
    - else_if: "count(*[1]/*)=3 and *[1]/*[2][self::m:mo][text()=':' or text()='|' or text()='∣']"
      then:
      - test:
          if: "$Verbosity!='Terse'"
          then: [t: "the"]      # phrase('the' set of all integers)
      - t: "set of"      # phrase(this is a 'set of' numbers)
      - test:
          if: $ClearSpeak_Sets != 'woAll'
          then: [t: "all"]      # phrase(the set of 'all' integers)
      - x: "*[1]/*[1]"
      - t: "such that"      # phrase(the set S 'such that' x is less than y)
      - x: "*[1]/*[3]"
      else:
      - test:
          if: $ClearSpeak_Sets != 'SilentBracket'
          then:
          - test:
              if: "$Verbosity!='Terse'"
              then: [t: "the"]      # phrase('the' set of integers)
          - t: "set"      # phrase(this is a 'set' of integers)
      - x: "*[1]"

- # intervals are controlled by a ClearSpeak Preference -- parens/brackets don't have to match, so we avoid IsBracketed
  # alternatively, we could have four (or ten) rules, but there is a lot of duplication if we do that
  # this one rule handles all ten cases listed as part $ClearSpeak_Paren = 'Interval'
  # note that *[2] is an mrow with X, ",", Y, so getting X or Y is a double index
  name: ClearSpeak-intervals # avoid overriding with default "intervals" name
  variables:
  - is_intervals_start_infinity: "*[1][self::m:negative and *[1][text()='∞']]"
  - is_intervals_end_infinity: "*[2][text()='∞'or (self::m:positive and *[1][text()='∞'])]"
  tag: [open-interval, open-closed-interval, closed-interval, closed-open-interval]
  match: "."
  replace:
  - t: "the interval from"      # phrase('the interval from' a to b)
  - x: "*[1]"
  - t: "to"      # phrase(the interval from a 'to' b)
  - x: "*[2]"
  - pause: short
  - test:
      if: "not($is_intervals_start_infinity)"
      then:
      - test:
          if: "starts-with(name(.), 'open')"
          then: [t: "not"]      # phrase(the interval from a to b 'not' including b)
      - t: "including"      # phrase(the interval from a to b not 'including' b)
      - x: "*[1]"
    # logic to deal with [not] arg #1
  - test:
      if: "not($is_intervals_start_infinity or $is_intervals_end_infinity)"
      then_test:
      - if: "name(.)='open-interval'"
        then: [t: "or"]      # phrase(the interval including a 'or' b )
      - else_if: "name(.)='closed-interval'"
        then: [t: "and"]      # phrase(the interval including a 'and' b)
        else: [t: "but"]      # phrase(the interval including a 'but' not b)
    # some ugly logic dealing with connectives: or, but, but, and (cleaner to be part of next clause?)
  - test:
      if: not($is_intervals_end_infinity)
      then:
      - test:
          # there is some asymmetry to the test because of the and/or/but logic above
          if: not( name(.)='open-interval' or name(.)='closed-interval' ) or $is_intervals_start_infinity
          then:
          - test:
              if: "name(.) = 'open-interval' or name(.) = 'closed-open-interval'"
              then: [t: "not"]      # phrase(the interval 'not' including a)
          - t: "including"      # phrase(the interval not 'including' a)
      - x: "*[2]"

    # onto the [not] [including]... part
- name: binomial-frac-vector
  tag: matrix
  match:
  - "$ClearSpeak_Matrix = 'Combinatorics' and "
  - "count(*[1]/*)=1 and count(*)=2"
  replace:
  - x: "*[1]/*[1]/*" # mtable/mtr/mtd
  - t: "choose"      # phrase(the binomial coefficient n 'choose' m)
  - x: "*[2]/*[1]/*"

- name: ClearSpeak-default
  tag: [mtr, mlabeledtr]
  match: "parent::m:matrix or parent::m:determinant"
  variables: [NextLineIsContinuedRow: "following-sibling::*[1][contains(@data-intent-property, ':continued-row:')]"]
  replace:
  - t: "row"      # phrase(the first 'row' of a matrix)
  - x: "count(preceding-sibling::*)+1"
  - test:
      if: .[self::m:mlabeledtr]
      then:
      - t: "with label"      # phrase(the line 'with label' first equation)
      - x: "*[1]/*"
      - pause: short
  - pause: medium
  - test:
      if: .[self::m:mlabeledtr]
      then: [x: "*[position()>1]"]
      else: {x: "*"}

- # handle both log and ln
  name: ClearSpeak-log
  tag: mrow
  variables: [{log_is_simple: "IsNode(*[3],'simple')"}]
  match:
  - "count(*)=3 and"
  - "*[1][self::m:mi][text()='log' or text()='ln'] and"
  - "*[2][self::m:mo][text()='⁡']"
  replace:
  - test:
      if: "$log_is_simple"
      then_test:
      - if: "*[1][text()='log']"
        then: [t: "log"]      # phrase(the 'log' of x)
      - else_if: $ClearSpeak_Log = 'LnAsNaturalLog'
        then: [t: "natural log"]      # phrase(the 'natural log' of the product of 2 numbers)
        else: [spell: "'ln'"]
      else:
      - test:
          if: "$Verbosity!='Terse' and not(log_is_simple)"
          then: [t: "the"]      # phrase('the' square root of 25)
      - test:
        - if: "*[1][text()='log']"
          then: [t: "log"]
        - else_if: $ClearSpeak_Log = 'LnAsNaturalLog'
          then: [t: "natural log"]      # phrase(the 'natural log' of x)
          else: [spell: "'ln'"]
      - t: "of"      # phrase(the natural log 'of' x)
      - pause: short
  - x: "*[3]"

- name: ClearSpeak-multi-line
  tag: [piecewise, system-of-equations, lines] # these are ignored in favor of the ClearSpeak prefs
  match: "."
  variables: [IsColumnSilent: true()]
  replace:
  - x: "count(*)"
  - test:
    - if: $ClearSpeak_MultiLineOverview = 'Auto'
      then:
      - test:
        - if: "($ClearSpeak_MultiLineLabel = 'Auto' and self::m:piecewise) or $ClearSpeak_MultiLineLabel = 'Case'"
          then: [t: "case"]      # phrase(this is the first 'case' of three cases)
        - else_if: "$ClearSpeak_MultiLineLabel = 'Auto' or $ClearSpeak_MultiLineLabel = 'Line'" # already dealt with Auto/Case
          then: [t: "line"]      # phrase(this is the first 'line' of three lines)
        - else_if: "$ClearSpeak_MultiLineLabel = 'Constraint'"
          then: [t: "constraint"]      # phrase(this is the first 'constraint' of three constraints)
        - else_if: "$ClearSpeak_MultiLineLabel = 'Equation'"
          then: [t: "equation"]      # phrase(this is the first 'equation' of three equations)
        - else_if: "$ClearSpeak_MultiLineLabel = 'Row'"
          then: [t: "row"]      # phrase(this is the first 'row' of three rows)
        - else_if: "$ClearSpeak_MultiLineLabel = 'Step'"
          then: [t: "step"]      # phrase(this is the first 'step' of three steps)
          # else 'None -- don't say anything'
      - test:
        - if: "count(*) > 1 and $ClearSpeak_MultiLineLabel != 'None'"
          then: [ct: "s"] # plural      # phrase(shown by the letter 's')
      - pause: short
  - x: "*"
  - pause: long

- name: ClearSpeak-default-multiline
  tag: [mtr, mlabeledtr]
  match: "parent::m:piecewise or parent::m:system-of-equations or parent::m:lines"
  variables: [NextLineIsContinuedRow: "following-sibling::*[1][contains(@data-intent-property, ':continued-row:')]"]
  replace:
  - test:
    - if: "($ClearSpeak_MultiLineLabel = 'Auto' and parent::m:piecewise) or $ClearSpeak_MultiLineLabel = 'Case'"
      then: [t: "case"]      # phrase(in this  'case' x is not equal to y)
    - else_if: "$ClearSpeak_MultiLineLabel = 'Auto' or $ClearSpeak_MultiLineLabel = 'Line'" # already dealt with Auto/Case
      then: [t: "line"]      # phrase(the straight 'line' between x and y)
    - else_if: "$ClearSpeak_MultiLineLabel = 'Constraint'"
      then: [t: "constraint"]      # phrase(there is a 'constraint' on possible values)
    - else_if: "$ClearSpeak_MultiLineLabel = 'Equation'"
      then: [t: "equation"]      # phrase(the 'equation' pi r squared gives the area of a circle)
    - else_if: "$ClearSpeak_MultiLineLabel = 'Row'"
      then: [t: "row"]      # phrase(the values on the top 'row' are relevant)
    - else_if: "$ClearSpeak_MultiLineLabel = 'Step'"
      then: [t: "step"]      # phrase(this is a 'step' by step process)
      # else 'None -- don't say anything'
  - test:
      if: "$ClearSpeak_MultiLineLabel != 'None'"
      then:
      - x: "count(preceding-sibling::*)+1"
      - test:
          if: .[self::m:mlabeledtr]
          then:
          - t: "with label"      # phrase(the item 'with label' complete)
          - x: "*[1]/*"
      - pause: medium
  - test:
      if: .[self::m:mlabeledtr]
      then: [x: "*[position()>1]"]
      else: {x: "*"}

- name: ClearSpeak_Functions_None
  tag: mo
  match:
  - "text()='⁡' and $ClearSpeak_Functions = 'None' and"
  - "not(preceding-sibling::*[1][IsInDefinition(., 'TrigFunctionNames')])" # Functions=None does not apply to "trig" functions
  replace:
    test:
      if: "$ClearSpeak_ImpliedTimes = 'None'"
      then: [t: ""]
      else: [t: "times"]      # phrase(5 'times' 3 equals 15)

- name: no-times
  tag: mo
  match:
  # Note: this rule is also part of the paren rule so that the parens speak
  - "text()='⁢' and $ClearSpeak_ImpliedTimes = 'None'"
  replace:
  - t: ""

- name: ClearSpeak-times
  tag: mo
  match:
  # say "times" when invisible times is followed by parens or a superscript that has a base with parens or "|"s
  # if we aren't sure if it is times or not, don't say anything
  - "text()='⁢' and (not(@data-function-guess) or $ClearSpeak_Functions = 'None') and"
  - "not(ancestor-or-self::*[contains(@data-intent-property, ':literal:')]) and ("
  - "  $ClearSpeak_ImpliedTimes = 'MoreImpliedTimes'"
  - " or "
  - "  following-sibling::*[1]["
  - "    IsBracketed(., '(', ')') or IsBracketed(., '[', ']') or IsBracketed(., '|', '|') or self::m:binomial or" # followed by parens
  - "    ( (self::m:msup or self::m:msub or self::m:msubsup or self::m:power) and " # followed by msup, etc.
  - "       *[1][self::m:mrow][IsBracketed(., '(', ')') or IsBracketed(., '[', ']') or IsBracketed(., '|', '|')]" # base has parens
  - "    )"
  - "  ]"
  # other possibility is the preceding element has parens (but not the following)
  # this is not mentioned in the ClearSpeak rules or examples but seems like it should say "times". E.g, |x| y
  - " or "
  - "  preceding-sibling::*[1]["
  - "    IsBracketed(., '(', ')') or IsBracketed(., '[', ']') or IsBracketed(., '|', '|')]" # followed by parens
  - " )"
  replace:
  - t: "times"      # phrase(5 'times' 3 equals 15)

- name: no-say-parens
  tag: mrow
  match:
  - "parent::*[not(self::m:msup) and not(self::m:msub) and not(self::m:msubsup) and not(self::m:power) and"
  - "          not(self::m:math) ] and "       # rule out [x] standing alone
  - "( IsBracketed(., '(', ')') or IsBracketed(., '[', ']') ) and "
  - "not( $ClearSpeak_Functions = 'None' and "
  - "     (preceding-sibling::*[1][text()='⁡'] or following-sibling::*[1][text()='⁡']) ) and "
  - "not( $ClearSpeak_ImpliedTimes = 'None' and "
  - "     (preceding-sibling::*[1][text()='⁢'] or following-sibling::*[1][text()='⁢']) ) and "
  - "IsNode(*[2], 'simple') and"
  - "not(ancestor-or-self::*[contains(@data-intent-property, ':literal:')])"
  # missing clause: 'a positive fraction that is spoken as an ordinal
  #   (either by the Ordinal preference or by the default rules)'
  replace:
  - x: "*[2]"

- include: "SharedRules/geometry.yaml"
- include: "SharedRules/linear-algebra.yaml"
- include: "SharedRules/calculus.yaml"
- include: "SharedRules/general.yaml"
- include: "SharedRules/default.yaml"