-import CoreGraphics
-import Foundation
-
-let vertexPattern =
- "([^\\(]+?)[\\s]*\\([\\s]*([0-9]+.?[0-9]*)[\\s]*,[\\s]*([0-9]+.?[0-9]*)[\\s]*\\)"
-let edgePattern = "(.+?)[\\s]*-([->])[\\s]*(.+)"
-let blockerPattern = "\\[Blocker\\][\\s]*(.+)"
-let opportunityPattern = "\\[Opportunity\\][\\s]*(.+)[\\s]+([-+])[\\s]*([0-9]+.?[0-9]*)"
-let stagePattern = "\\[(I{1,3})\\][\\s]*([0-9]+.?[0-9]*)"
-
-struct ParsedMap {
- let vertices: [Vertex]
- let edges: [MapEdge]
- let blockers: [Blocker]
- let opportunities: [Opportunity]
- let stages: [CGFloat]
-}
-
-struct Vertex {
- let id: Int
- let label: String
- let position: CGPoint
-}
-
-struct MapEdge {
- let id: Int
- let origin: CGPoint
- let destination: CGPoint
- let arrowhead: Bool
-}
-
-struct Blocker {
- let id: Int
- let position: CGPoint
-}
-
-struct Opportunity {
- let id: Int
- let origin: CGPoint
- let destination: CGPoint
-}
-
-let defaultDimensions: [CGFloat] = [
- 25.0,
- 50.0,
- 75.0,
-]
-
-// Extracts the vertices from the text
-
-func parseVertices(_ text: String) -> [String: CGPoint] {
-
- var result: [String: CGPoint] = [:]
- let regex = try! NSRegularExpression(pattern: vertexPattern, options: .caseInsensitive)
-
- let lines = text.split(whereSeparator: \.isNewline)
-
- for line in lines {
- let range = NSRange(location: 0, length: line.utf16.count)
- let matches = regex.matches(in: String(line), options: [], range: range)
-
- if matches.count > 0 && matches[0].numberOfRanges == 4 {
-
- let match = matches[0]
- let key = String(line[Range(match.range(at: 1), in: line)!])
- let xString = String(line[Range(match.range(at: 2), in: line)!])
- let yString = String(line[Range(match.range(at: 3), in: line)!])
- let x = CGFloat(truncating: NumberFormatter().number(from: xString) ?? 0.0)
- let y = CGFloat(truncating: NumberFormatter().number(from: yString) ?? 0.0)
- let point = CGPoint(x: x, y: y)
-
- result[key] = point
- }
- }
-
- return result
-}
-
-func parseEdges(_ text: String, vertices: [String: CGPoint]) -> [MapEdge] {
-
- var result: [MapEdge] = []
- let regex = try! NSRegularExpression(pattern: edgePattern, options: .caseInsensitive)
-
- let lines = text.split(whereSeparator: \.isNewline)
-
- for (index, line) in lines.enumerated() {
- let range = NSRange(location: 0, length: line.utf16.count)
- let matches = regex.matches(in: String(line), options: [], range: range)
-
- if matches.count > 0 && matches[0].numberOfRanges == 4 {
-
- let match = matches[0]
- let arrowhead = String(line[Range(match.range(at: 2), in: line)!]) == ">"
- let vertexA = String(line[Range(match.range(at: 1), in: line)!])
- let vertexB = String(line[Range(match.range(at: 3), in: line)!])
-
- if let origin = vertices[vertexA] {
- if let destination = vertices[vertexB] {
- result.append(
- MapEdge(id: index, origin: origin, destination: destination, arrowhead: arrowhead))
+extension Map {
+ static func parse(content: String) -> ParsedMap {
+
+ let parsers = [
+ AnyMapParserStrategy(VertexParserStrategy()),
+ AnyMapParserStrategy(EdgeParserStrategy()),
+ AnyMapParserStrategy(BlockerParserStrategy()),
+ AnyMapParserStrategy(OpportunityParserStrategy()),
+ AnyMapParserStrategy(StageParserStrategy()),
+ ]
+ let builder = MapBuilder()
+
+ let lines = content.split(whereSeparator: \.isNewline)
+
+ for (index, line) in lines.enumerated() {
+ for parser in parsers {
+ if parser.canHandle(line: String(line)) {
+ let (type, object) = parser.handle(
+ index: index, line: String(line), vertices: builder.vertices)
+ builder.addObjectToMap(type: type, object: object)
+ break
}
}
}
- }
-
- return result
-}
-
-func parseOpportunities(_ text: String, vertices: [String: CGPoint]) -> [Opportunity] {
-
- var result: [Opportunity] = []
- let regex = try! NSRegularExpression(pattern: opportunityPattern, options: .caseInsensitive)
-
- let lines = text.split(whereSeparator: \.isNewline)
-
- for (index, line) in lines.enumerated() {
- let range = NSRange(location: 0, length: line.utf16.count)
- let matches = regex.matches(in: String(line), options: [], range: range)
-
- if matches.count > 0 && matches[0].numberOfRanges == 4 {
-
- let match = matches[0]
- let multiplier = CGFloat(
- String(line[Range(match.range(at: 2), in: line)!]) == "-" ? -1.0 : 1.0)
- let vertex = String(line[Range(match.range(at: 1), in: line)!])
- let opportunityString = String(line[Range(match.range(at: 3), in: line)!])
- let opportunity = CGFloat(
- truncating: NumberFormatter().number(from: opportunityString) ?? 0.0)
-
- if let origin = vertices[vertex] {
- let destination = CGPoint(x: origin.x + opportunity * multiplier, y: origin.y)
- result.append(Opportunity(id: index, origin: origin, destination: destination))
- }
- }
- }
-
- return result
-}
-
-func parseBlockers(_ text: String, vertices: [String: CGPoint]) -> [Blocker] {
-
- var result: [Blocker] = []
- let regex = try! NSRegularExpression(pattern: blockerPattern, options: .caseInsensitive)
-
- let lines = text.split(whereSeparator: \.isNewline)
-
- for (index, line) in lines.enumerated() {
- let range = NSRange(location: 0, length: line.utf16.count)
- let matches = regex.matches(in: String(line), options: [], range: range)
-
- if matches.count > 0 && matches[0].numberOfRanges == 2 {
-
- let match = matches[0]
- let vertexA = String(line[Range(match.range(at: 1), in: line)!])
-
- if let position = vertices[vertexA] {
- result.append(Blocker(id: index, position: position))
- }
- }
- }
-
- return result
-}
-
-func parseStages(_ text: String) -> [CGFloat] {
-
- var result = defaultDimensions
- let regex = try! NSRegularExpression(pattern: stagePattern, options: .caseInsensitive)
-
- let lines = text.split(whereSeparator: \.isNewline)
-
- for line in lines {
- let range = NSRange(location: 0, length: line.utf16.count)
- let matches = regex.matches(in: String(line), options: [], range: range)
-
- if matches.count > 0 && matches[0].numberOfRanges == 3 {
-
- let match = matches[0]
- let stage = String(line[Range(match.range(at: 1), in: line)!])
- let dimensionsString = String(line[Range(match.range(at: 2), in: line)!])
- let dimensions = CGFloat(truncating: NumberFormatter().number(from: dimensionsString) ?? 0.0)
-
- result[stage.count - 1] = dimensions
- }
- }
-
- return result
-}
-
-// Converts vetex dictionary to array
-
-func mapVertices(_ vertices: [String: CGPoint]) -> [Vertex] {
- var i = 0
- return vertices.map { label, position in
- i += 1
- return Vertex(id: i, label: label, position: position)
- }
-}
-
-extension Map {
- func parse() -> ParsedMap {
-
- let text = self.content ?? ""
- let vertices = parseVertices(text)
- let mappedVertices = mapVertices(vertices)
- let edges = parseEdges(text, vertices: vertices)
- let blockers = parseBlockers(text, vertices: vertices)
- let opportunities = parseOpportunities(text, vertices: vertices)
- let stages = parseStages(text)
- return ParsedMap(
- vertices: mappedVertices, edges: edges, blockers: blockers, opportunities: opportunities,
- stages: stages)
+ return builder.build()
}
}
git.r.bdr.sh / rbdr / map / blobdiff