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Attempt heuristic table

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This commit is contained in:
Jonathan Turner
2019-08-13 19:45:31 +12:00
parent 4411a5b72c
commit 123b1856c8
5 changed files with 107 additions and 9 deletions
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62
src/format/table.rs
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@ -31,6 +31,8 @@ impl TableView {
return None;
}
let max_row: usize = termsize::get().map(|x| x.cols).unwrap() as usize;
let mut headers = TableView::merge_descriptors(values);
if headers.len() == 0 {
@ -61,6 +63,66 @@ impl TableView {
if values.len() > 1 {
headers.insert(0, format!("#"));
}
// Trim if the row is too long
let mut max_up_to_now = 0;
let mut has_removed_column = false;
let num_headers = headers.len();
for i in 0..num_headers {
let mut max_entry = 0;
if i == (num_headers - 1) {
let amount = max_row - std::cmp::min(max_row, max_up_to_now);
if headers[i].len() > amount {
headers[i] = headers[i].chars().take(amount).collect::<String>();
}
} else {
if headers[i].len() > (max_row / num_headers) {
headers[i] = headers[i]
.chars()
.take(std::cmp::max(max_row / headers.len(), 5))
.collect::<String>();
}
}
if headers[i].len() > max_entry {
max_entry = headers[i].len();
}
if has_removed_column {
for j in 0..entries.len() {
entries[j].pop();
}
} else {
for j in 0..entries.len() {
// If we have too many columns, trim the extra ones
if (max_up_to_now + max_entry + 3) >= max_row {
has_removed_column = true;
}
if i == (num_headers - 1) {
let amount = max_row - std::cmp::min(max_row, max_up_to_now);
if entries[j][i].len() > amount {
entries[j][i] = entries[j][i].chars().take(amount).collect::<String>();
}
} else {
if entries[j][i].len() > (max_row / num_headers) {
entries[j][i] = entries[j][i]
.chars()
.take(std::cmp::max(max_row / headers.len(), 5))
.collect::<String>();
}
}
if entries[j][i].len() > max_entry {
max_entry = entries[j][i].len();
}
}
max_up_to_now += max_entry + 3;
}
}
Some(TableView { headers, entries })
}
}