diff options
Diffstat (limited to 'src/elements/table.rs')
-rw-r--r-- | src/elements/table.rs | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/src/elements/table.rs b/src/elements/table.rs deleted file mode 100644 index 5b354c1..0000000 --- a/src/elements/table.rs +++ /dev/null @@ -1,96 +0,0 @@ -use crate::*; - -pub struct Table { - /// The column definitions for this table. - pub column_definitions: Vec<ColumnDefinition>, - /// The content contained in the rows of the table. An individual [Line] is - /// the contents of a single table cell, a group of cells forms a table row, - /// a group of rows forms a vertical section of the table, with a separator - /// intending to be drawn between each section, and a group of sections forms - /// the table itself. - /// Each row in the table is guaranteed to have the same number of columns - /// as the table header. - pub sections: Vec<Vec<Vec<Line>>>, -} - -impl Table { - pub fn try_from_strs(lines: &[&str]) -> Option<Self> { - let mut lines = lines.into_iter(); - let column_definitions: Vec<ColumnDefinition> = { - let names = split_trimmed_columns(lines.next()?)? - .into_iter().map(|l| Line::from_str(l)); - let alignments = parse_alignments(lines.next()?)?; - if names.len() != alignments.len() { return None } - std::iter::zip(names, alignments).map( - |(name, alignment)| ColumnDefinition { name, alignment } ).collect() - }; - - let mut sections = Vec::new(); - let mut current_section = Vec::new(); - - for line in lines { - if let Some(alignments) = parse_alignments(line) { - if alignments.len() != column_definitions.len() { return None } - sections.push(std::mem::take(&mut current_section)) - } else { - let row: Vec<Line> = split_trimmed_columns(line)? - .into_iter().map(|c| Line::from_str(c)).collect(); - if row.len() != column_definitions.len() { return None } - current_section.push(row); - } - } - - if !current_section.is_empty() { - sections.push(std::mem::take(&mut current_section)); } - Some( Self { column_definitions, sections }) - } -} - -pub struct ColumnDefinition { - /// The name of this column, shown in the header row of the table. - pub name: Line, - /// The alignment of the content in this column. - pub alignment: ColumnAlignment, -} - -pub enum ColumnAlignment { - Left, - Center, - Right, -} - -impl ColumnAlignment { - pub fn from_str(cell: &str) -> Option<Self> { - if !cell.chars().all(|c| c == ':' || c == '-') { - return None } - match (cell.starts_with(':'), cell.ends_with(':')) { - (false, false) => Some(ColumnAlignment::Left), - (false, true) => Some(ColumnAlignment::Right), - (true, false) => Some(ColumnAlignment::Left), - (true, true) => Some(ColumnAlignment::Center), - } - } -} - - -fn split_trimmed_columns(line: &str) -> Option<Vec<&str>> { - Some(split_columns(line)?.into_iter().map(|s| s.trim()).collect()) -} - -fn split_columns(line: &str) -> Option<Vec<&str>> { - if let Some(("", tail)) = line.split_once('|') { - if let Some((head, "")) = tail.rsplit_once('|') { - return Some(head.split('|').collect()); - } - } - return None; -} - -fn parse_alignments(line: &str) -> Option<Vec<ColumnAlignment>> { - let mut alignments = Vec::new(); - for cell in split_columns(line)? { - alignments.push(ColumnAlignment::from_str(cell)?); - } - Some(alignments) -} - |