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Simplify string padding
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parent
745bcce02a
commit
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12
column.rs
12
column.rs
@ -42,23 +42,23 @@ impl Column {
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}
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// An Alignment is used to pad a string to a certain length, letting
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// it pick which end it puts the text on. The length of the string is
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// passed in specifically because it needs to be the *unformatted*
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// length, rather than just the number of characters.
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// it pick which end it puts the text on. It takes the amount of
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// padding to apply, rather than the width the text should end up,
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// because these strings are usually full of control characters.
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impl Alignment {
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pub fn pad_string(&self, string: &String, string_length: uint, width: uint) -> String {
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pub fn pad_string(&self, string: &String, padding: uint) -> String {
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let mut str = String::new();
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match *self {
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Left => {
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str.push_str(string.as_slice());
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for _ in range(string_length, width) {
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for _ in range(0, padding) {
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str.push_char(' ');
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}
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}
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Right => {
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for _ in range(string_length, width) {
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for _ in range(0, padding) {
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str.push_char(' ');
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}
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str.push_str(string.as_slice());
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5
exa.rs
5
exa.rs
@ -95,7 +95,7 @@ fn exa(options: &Options, print_header: bool, string: String) {
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.map(|n| lengths.iter().map(|row| *row.get(n)).max().unwrap())
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.collect();
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for (field_lengths, row) in lengths.iter().zip(table.iter()) {
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for (field_widths, row) in lengths.iter().zip(table.iter()) {
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for (num, column) in options.columns.iter().enumerate() {
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if num != 0 {
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print!(" ");
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@ -105,7 +105,8 @@ fn exa(options: &Options, print_header: bool, string: String) {
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print!("{}", row.get(num));
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}
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else {
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print!("{}", column.alignment().pad_string(row.get(num), *field_lengths.get(num), *column_widths.get(num)));
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let padding = *column_widths.get(num) - *field_widths.get(num);
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print!("{}", column.alignment().pad_string(row.get(num), padding));
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}
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}
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print!("\n");
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