Function parseMatrix

src/expression/parse.js:1596–1660

* parse the matrix * @return {Node} node * @private

(state)

   * @private
   */
  function parseMatrix (state) {
    let array, params, rows, cols

    if (state.token === '[') {
      // matrix [...]
      openParams(state)
      getToken(state)

      if (state.token !== ']') {
        // this is a non-empty matrix
        const row = parseRow(state)

        if (state.token === ';') {
          // 2 dimensional array
          rows = 1
          params = [row]

          // the rows of the matrix are separated by dot-comma's
          while (state.token === ';') { // eslint-disable-line no-unmodified-loop-condition
            getToken(state)

            if (state.token !== ']') {
              params[rows] = parseRow(state)
              rows++
            }
          }

          if (state.token !== ']') {
            throw createSyntaxError(state, 'End of matrix ] expected')
          }
          closeParams(state)
          getToken(state)

          // check if the number of columns matches in all rows
          cols = params[0].items.length
          for (let r = 1; r < rows; r++) {
            if (params[r].items.length !== cols) {
              throw createError(state, 'Column dimensions mismatch ' +
                  '(' + params[r].items.length + ' !== ' + cols + ')')
            }
          }

          array = new ArrayNode(params)
        } else {
          // 1 dimensional vector
          if (state.token !== ']') {
            throw createSyntaxError(state, 'End of matrix ] expected')
          }
          closeParams(state)
          getToken(state)

          array = row
        }
      } else {
        // this is an empty matrix "[ ]"
        closeParams(state)
        getToken(state)
        array = new ArrayNode([])