diff options
Diffstat (limited to 'Sources')
| -rw-r--r-- | Sources/bar/Models/Cell.swift | 47 | ||||
| -rw-r--r-- | Sources/bar/bar.docc/highlighting.md | 12 |
2 files changed, 25 insertions, 34 deletions
diff --git a/Sources/bar/Models/Cell.swift b/Sources/bar/Models/Cell.swift index b7911b5..0ae324b 100644 --- a/Sources/bar/Models/Cell.swift +++ b/Sources/bar/Models/Cell.swift @@ -1,6 +1,4 @@ -import RegexBuilder import SwiftUI -import Synchronization /// A thin wrapper around a single text line captured /// by a block. @@ -28,15 +26,6 @@ import Synchronization /// within a group. For example when you want to show /// window manager workspaces and which one is active. struct Cell: RawRepresentable, Identifiable { - /// Build the parser once rather than on every refresh of every cell. - private static let pattern = Mutex(Regex { - Optionally { - "&!" - Capture { OneOrMore(.digit) } - } - Capture { OneOrMore(.any) } - }) - /// A content-derived identifier combining text and highlight. /// /// Identical cells share this value and content changes change it. @@ -51,26 +40,26 @@ struct Cell: RawRepresentable, Identifiable { var background: Color init(rawValue: String) { - guard let match = Self.pattern.withLock({ rawValue.firstMatch(of: $0) }) else { - self.rawValue = rawValue - self.background = .clear - self.id = "\(rawValue):0" - return - } + var text = rawValue + var level = 0 - guard let rawHighlight = match.output.1, - let highlight = Int(String(rawHighlight)), - highlight > 0, - highlight <= Config.highlights.count - else { - self.rawValue = String(match.output.2) - self.background = .clear - self.id = "\(self.rawValue):0" - return + if rawValue.hasPrefix("&!") { + let suffix = rawValue.dropFirst(2) + // Consume every ASCII digit before interpreting the level. + let digits = suffix.prefix { character in + character.unicodeScalars.count == 1 && character >= "0" && character <= "9" + } + let body = suffix.dropFirst(digits.count) + if !digits.isEmpty && !body.isEmpty { + text = String(body) + if let parsed = Int(digits), parsed > 0, parsed <= Config.highlights.count { + level = parsed + } + } } - self.rawValue = String(match.output.2) - self.background = Config.highlights[highlight - 1] - self.id = "\(self.rawValue):\(highlight)" + self.rawValue = text + self.background = level > 0 ? Config.highlights[level - 1] : .clear + self.id = "\(text):\(level)" } } diff --git a/Sources/bar/bar.docc/highlighting.md b/Sources/bar/bar.docc/highlighting.md index 8075031..dc318ec 100644 --- a/Sources/bar/bar.docc/highlighting.md +++ b/Sources/bar/bar.docc/highlighting.md @@ -34,9 +34,11 @@ echo "&!2 workspace 2" # highlighted with Config.highlights[1] echo "workspace 3" # no highlight ``` -> Important: A parsed `&!<level>` prefix followed by text is stripped before rendering, so only the text after it is displayed. -> For example, `&!1 workspace 1` renders as `workspace 1` on a highlighted background. +> Important: Only a prefix at the start of the line is recognized. Its level uses ASCII digits (`0`–`9`), and the entire digit sequence is consumed. A nonempty body must follow it. Whitespace counts as a body and is preserved exactly: `&!1 workspace 1` renders as ` workspace 1`, including the leading space. -> Important: The highlight level is a positive integer that indexes into ``Config-swift.enum/highlights`` (1-based). -> For a parsed prefix followed by text, zero, an out-of-range level, or a number too large to represent as an Int leaves the cell unhighlighted and removes the prefix. -> Use a level followed by text as shown above: malformed or textless prefixes are not guaranteed to be stripped by the current parser. +The highlight level is a positive integer that indexes into ``Config-swift.enum/highlights`` (1-based). +With a nonempty body, zero, an out-of-range level, or an integer overflow removes the prefix but leaves the body unhighlighted. +Leading zeroes are allowed (`&!01 text` selects level 1). + +Empty input, textless prefixes such as `&!1` and `&!12`, and malformed prefixes such as `&!`, `&!-1 text`, or `&!１ text` remain literal and unhighlighted. +Embedded prefixes also remain literal, as in `text &!1 more`. |