Files
IronCalc/base/src/functions/logical.rs
2024-02-20 15:19:05 +01:00

321 lines
12 KiB
Rust

use crate::{
calc_result::CalcResult,
expressions::{parser::Node, token::Error, types::CellReferenceIndex},
model::Model,
};
use super::util::compare_values;
impl Model {
pub(crate) fn fn_if(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
if args.len() == 2 || args.len() == 3 {
let cond_result = self.get_boolean(&args[0], cell);
let cond = match cond_result {
Ok(f) => f,
Err(s) => {
return s;
}
};
if cond {
return self.evaluate_node_in_context(&args[1], cell);
} else if args.len() == 3 {
return self.evaluate_node_in_context(&args[2], cell);
} else {
return CalcResult::Boolean(false);
}
}
CalcResult::new_args_number_error(cell)
}
pub(crate) fn fn_iferror(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
if args.len() == 2 {
let value = self.evaluate_node_in_context(&args[0], cell);
match value {
CalcResult::Error { .. } => {
return self.evaluate_node_in_context(&args[1], cell);
}
_ => return value,
}
}
CalcResult::new_args_number_error(cell)
}
pub(crate) fn fn_ifna(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
if args.len() == 2 {
let value = self.evaluate_node_in_context(&args[0], cell);
if let CalcResult::Error { error, .. } = &value {
if error == &Error::NA {
return self.evaluate_node_in_context(&args[1], cell);
}
}
return value;
}
CalcResult::new_args_number_error(cell)
}
pub(crate) fn fn_not(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
if args.len() == 1 {
match self.get_boolean(&args[0], cell) {
Ok(f) => return CalcResult::Boolean(!f),
Err(s) => {
return s;
}
};
}
CalcResult::new_args_number_error(cell)
}
pub(crate) fn fn_and(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
let mut true_count = 0;
for arg in args {
match self.evaluate_node_in_context(arg, cell) {
CalcResult::Boolean(b) => {
if !b {
return CalcResult::Boolean(false);
}
true_count += 1;
}
CalcResult::Number(value) => {
if value == 0.0 {
return CalcResult::Boolean(false);
}
true_count += 1;
}
CalcResult::String(_value) => {
true_count += 1;
}
CalcResult::Range { left, right } => {
if left.sheet != right.sheet {
return CalcResult::new_error(
Error::VALUE,
cell,
"Ranges are in different sheets".to_string(),
);
}
for row in left.row..(right.row + 1) {
for column in left.column..(right.column + 1) {
match self.evaluate_cell(CellReferenceIndex {
sheet: left.sheet,
row,
column,
}) {
CalcResult::Boolean(b) => {
if !b {
return CalcResult::Boolean(false);
}
true_count += 1;
}
CalcResult::Number(value) => {
if value == 0.0 {
return CalcResult::Boolean(false);
}
true_count += 1;
}
CalcResult::String(_value) => {
true_count += 1;
}
error @ CalcResult::Error { .. } => return error,
CalcResult::Range { .. } => {}
CalcResult::EmptyCell | CalcResult::EmptyArg => {}
}
}
}
}
error @ CalcResult::Error { .. } => return error,
CalcResult::EmptyCell | CalcResult::EmptyArg => {}
};
}
if true_count == 0 {
return CalcResult::new_error(
Error::VALUE,
cell,
"Boolean values not found".to_string(),
);
}
CalcResult::Boolean(true)
}
pub(crate) fn fn_or(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
let mut result = false;
for arg in args {
match self.evaluate_node_in_context(arg, cell) {
CalcResult::Boolean(value) => result = value || result,
CalcResult::Number(value) => {
if value != 0.0 {
return CalcResult::Boolean(true);
}
}
CalcResult::String(_value) => {
return CalcResult::Boolean(true);
}
CalcResult::Range { left, right } => {
if left.sheet != right.sheet {
return CalcResult::new_error(
Error::VALUE,
cell,
"Ranges are in different sheets".to_string(),
);
}
for row in left.row..(right.row + 1) {
for column in left.column..(right.column + 1) {
match self.evaluate_cell(CellReferenceIndex {
sheet: left.sheet,
row,
column,
}) {
CalcResult::Boolean(value) => {
result = value || result;
}
CalcResult::Number(value) => {
if value != 0.0 {
return CalcResult::Boolean(true);
}
}
CalcResult::String(_value) => {
return CalcResult::Boolean(true);
}
error @ CalcResult::Error { .. } => return error,
CalcResult::Range { .. } => {}
CalcResult::EmptyCell | CalcResult::EmptyArg => {}
}
}
}
}
error @ CalcResult::Error { .. } => return error,
CalcResult::EmptyCell | CalcResult::EmptyArg => {}
};
}
CalcResult::Boolean(result)
}
/// XOR(logical1, [logical]*,...)
/// Logical1 is required, subsequent logical values are optional. Can be logical values, arrays, or references.
/// The result of XOR is TRUE when the number of TRUE inputs is odd and FALSE when the number of TRUE inputs is even.
pub(crate) fn fn_xor(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
let mut true_count = 0;
let mut false_count = 0;
for arg in args {
match self.evaluate_node_in_context(arg, cell) {
CalcResult::Boolean(b) => {
if b {
true_count += 1;
} else {
false_count += 1;
}
}
CalcResult::Number(value) => {
if value != 0.0 {
true_count += 1;
} else {
false_count += 1;
}
}
CalcResult::Range { left, right } => {
if left.sheet != right.sheet {
return CalcResult::new_error(
Error::VALUE,
cell,
"Ranges are in different sheets".to_string(),
);
}
for row in left.row..(right.row + 1) {
for column in left.column..(right.column + 1) {
match self.evaluate_cell(CellReferenceIndex {
sheet: left.sheet,
row,
column,
}) {
CalcResult::Boolean(b) => {
if b {
true_count += 1;
} else {
false_count += 1;
}
}
CalcResult::Number(value) => {
if value != 0.0 {
true_count += 1;
} else {
false_count += 1;
}
}
_ => {}
}
}
}
}
_ => {}
};
}
if true_count == 0 && false_count == 0 {
return CalcResult::new_error(Error::VALUE, cell, "No booleans found".to_string());
}
CalcResult::Boolean(true_count % 2 == 1)
}
/// =SWITCH(expression, case1, value1, [case, value]*, [default])
pub(crate) fn fn_switch(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
let args_count = args.len();
if args_count < 3 {
return CalcResult::new_args_number_error(cell);
}
// TODO add implicit intersection
let expr = self.evaluate_node_in_context(&args[0], cell);
if expr.is_error() {
return expr;
}
// How many cases we have?
// 3, 4 args -> 1 case
let case_count = (args_count - 1) / 2;
for case_index in 0..case_count {
let case = self.evaluate_node_in_context(&args[2 * case_index + 1], cell);
if case.is_error() {
return case;
}
if compare_values(&expr, &case) == 0 {
return self.evaluate_node_in_context(&args[2 * case_index + 2], cell);
}
}
// None of the cases matched so we return the default
// If there is an even number of args is the last one otherwise is #N/A
if args_count % 2 == 0 {
return self.evaluate_node_in_context(&args[args_count - 1], cell);
}
CalcResult::Error {
error: Error::NA,
origin: cell,
message: "Did not find a match".to_string(),
}
}
/// =IFS(condition1, value, [condition, value]*)
pub(crate) fn fn_ifs(&mut self, args: &[Node], cell: CellReferenceIndex) -> CalcResult {
let args_count = args.len();
if args_count < 2 {
return CalcResult::new_args_number_error(cell);
}
if args_count % 2 != 0 {
// Missing value for last condition
return CalcResult::new_args_number_error(cell);
}
let case_count = args_count / 2;
for case_index in 0..case_count {
let value = self.get_boolean(&args[2 * case_index], cell);
match value {
Ok(b) => {
if b {
return self.evaluate_node_in_context(&args[2 * case_index + 1], cell);
}
}
Err(s) => return s,
}
}
CalcResult::Error {
error: Error::NA,
origin: cell,
message: "Did not find a match".to_string(),
}
}
}