feat: add new config maxDataLineLength

sasjslint-schema.json

@@ -14,6 +14,7 @@
     "lowerCaseFileNames": true,
     "maxLineLength": 80,
     "maxHeaderLineLength": 80,
+    "maxDataLineLength": 80,
     "noGremlins": true,
     "noNestedMacros": true,
     "noSpacesInFileNames": true,
@@ -32,6 +33,7 @@
       "lowerCaseFileNames": true,
       "maxLineLength": 80,
       "maxHeaderLineLength": 80,
+      "maxDataLineLength": 80,
       "noGremlins": true,
       "allowedGremlins": ["0x0080", "0x3000"],
       "noTabs": true,
@@ -137,6 +139,14 @@
       "default": 80,
       "examples": [60, 80, 120]
     },
+    "maxDataLineLength": {
+      "$id": "#/properties/maxDataLineLength",
+      "type": "number",
+      "title": "maxDataLineLength",
+      "description": "Enforces a configurable maximum line length for data section. Shows a warning for lines exceeding this length.",
+      "default": 80,
+      "examples": [60, 80, 120]
+    },
     "noNestedMacros": {
       "$id": "#/properties/noNestedMacros",
       "type": "boolean",

src/lint/shared.ts

@@ -1,15 +1,18 @@
-import { LintConfig, Diagnostic } from '../types'
+import { LintConfig, Diagnostic, LineLintRuleOptions } from '../types'
 import { getHeaderLinesCount, splitText } from '../utils'
+import { checkIsDataLine, getDataSectionsDetail } from '../utils'
 
 export const processText = (text: string, config: LintConfig) => {
   const lines = splitText(text, config)
   const headerLinesCount = getHeaderLinesCount(text, config)
+  const dataSections = getDataSectionsDetail(text, config)
   const diagnostics: Diagnostic[] = []
   diagnostics.push(...processContent(config, text))
   lines.forEach((line, index) => {
-    index += 1
+    const isHeaderLine = index + 1 <= headerLinesCount
+    const isDataLine = checkIsDataLine(dataSections, index)
     diagnostics.push(
-      ...processLine(config, line, index, index <= headerLinesCount)
+      ...processLine(config, line, index + 1, { isHeaderLine, isDataLine })
     )
   })
 
@@ -41,11 +44,11 @@ export const processLine = (
   config: LintConfig,
   line: string,
   lineNumber: number,
-  isHeaderLine: boolean
+  options: LineLintRuleOptions
 ): Diagnostic[] => {
   const diagnostics: Diagnostic[] = []
   config.lineLintRules.forEach((rule) => {
-    diagnostics.push(...rule.test(line, lineNumber, config, isHeaderLine))
+    diagnostics.push(...rule.test(line, lineNumber, config, options))
   })
 
   return diagnostics

src/rules/line/maxLineLength.spec.ts

@@ -41,4 +41,44 @@ describe('maxLineLength', () => {
       'Prow scuttle parrel provost Sail ho shrouds spirits boom mizzenmast yard'
     expect(maxLineLength.test(line, 1)).toEqual([])
   })
+
+  it('should return an array with a single diagnostic when the line in header section exceeds the specified length', () => {
+    const line = 'This line is from header section'
+    const config = new LintConfig({
+      maxLineLength: 10,
+      maxHeaderLineLength: 15
+    })
+    expect(maxLineLength.test(line, 1, config, { isHeaderLine: true })).toEqual(
+      [
+        {
+          message: `Line exceeds maximum length by ${
+            line.length - config.maxHeaderLineLength
+          } characters`,
+          lineNumber: 1,
+          startColumnNumber: 1,
+          endColumnNumber: 1,
+          severity: Severity.Warning
+        }
+      ]
+    )
+  })
+
+  it('should return an array with a single diagnostic when the line in data section exceeds the specified length', () => {
+    const line = 'GROUP_LOGIC:$3. SUBGROUP_LOGIC:$3. SUBGROUP_ID:8.'
+    const config = new LintConfig({
+      maxLineLength: 10,
+      maxDataLineLength: 15
+    })
+    expect(maxLineLength.test(line, 1, config, { isDataLine: true })).toEqual([
+      {
+        message: `Line exceeds maximum length by ${
+          line.length - config.maxDataLineLength
+        } characters`,
+        lineNumber: 1,
+        startColumnNumber: 1,
+        endColumnNumber: 1,
+        severity: Severity.Warning
+      }
+    ])
+  })
 })

src/rules/line/maxLineLength.ts

@@ -1,5 +1,5 @@
 import { LintConfig } from '../../types'
-import { LineLintRule } from '../../types/LintRule'
+import { LineLintRule, LineLintRuleOptions } from '../../types/LintRule'
 import { LintRuleType } from '../../types/LintRuleType'
 import { Severity } from '../../types/Severity'
 import { DefaultLintConfiguration } from '../../utils'
@@ -12,15 +12,19 @@ const test = (
   value: string,
   lineNumber: number,
   config?: LintConfig,
-  isHeaderLine?: boolean
+  options?: LineLintRuleOptions
 ) => {
   const severity = config?.severityLevel[name] || Severity.Warning
-  let maxLineLength = config
-    ? config.maxLineLength
-    : DefaultLintConfiguration.maxLineLength
+  let maxLineLength = DefaultLintConfiguration.maxLineLength
 
-  if (isHeaderLine && config) {
-    maxLineLength = Math.max(config.maxLineLength, config.maxHeaderLineLength)
+  if (config) {
+    if (options?.isHeaderLine) {
+      maxLineLength = Math.max(config.maxLineLength, config.maxHeaderLineLength)
+    } else if (options?.isDataLine) {
+      maxLineLength = Math.max(config.maxLineLength, config.maxDataLineLength)
+    } else {
+      maxLineLength = config.maxLineLength
+    }
   }
 
   if (value.length <= maxLineLength) return []

src/types/LintConfig.ts

@@ -35,6 +35,7 @@ export class LintConfig {
   readonly pathLintRules: PathLintRule[] = []
   readonly maxLineLength: number = 80
   readonly maxHeaderLineLength: number = 80
+  readonly maxDataLineLength: number = 80
   readonly indentationMultiple: number = 2
   readonly lineEndings: LineEndings = LineEndings.LF
   readonly defaultHeader: string = getDefaultHeader()
@@ -75,6 +76,10 @@ export class LintConfig {
       if (!isNaN(json?.maxHeaderLineLength)) {
         this.maxHeaderLineLength = json.maxHeaderLineLength
       }
+
+      if (!isNaN(json?.maxDataLineLength)) {
+        this.maxDataLineLength = json.maxDataLineLength
+      }
     }
 
     this.fileLintRules.push(lineEndings)

src/types/LintRule.ts

@@ -13,6 +13,11 @@ export interface LintRule {
   message: string
 }
 
+export interface LineLintRuleOptions {
+  isHeaderLine?: boolean
+  isDataLine?: boolean
+}
+
 /**
  * A LineLintRule is run once per line of text.
  */
@@ -22,7 +27,7 @@ export interface LineLintRule extends LintRule {
     value: string,
     lineNumber: number,
     config?: LintConfig,
-    isHeaderLine?: boolean
+    options?: LineLintRuleOptions
   ) => Diagnostic[]
   fix?: (value: string, config?: LintConfig) => string
 }

src/utils/getDataSectionDetail.spec.ts

@@ -0,0 +1,113 @@
+import { LintConfig } from '../types'
+import { getDataSectionsDetail, checkIsDataLine } from './getDataSectionsDetail'
+import { DefaultLintConfiguration } from './getLintConfig'
+
+const datalines = `GROUP_LOGIC:$3. SUBGROUP_LOGIC:$3. SUBGROUP_ID:8. VARIABLE_NM:$32. OPERATOR_NM:$10. RAW_VALUE:$4000.
+AND,AND,1,LIBREF,CONTAINS,"'DC'"
+AND,OR,2,DSN,=,"'MPE_LOCK_ANYTABLE'"`
+
+const datalinesBeginPattern1 = `datalines;`
+const datalinesBeginPattern2 = `datalines4;`
+const datalinesBeginPattern3 = `cards;`
+const datalinesBeginPattern4 = `cards4;`
+const datalinesBeginPattern5 = `parmcards;`
+const datalinesBeginPattern6 = `parmcards4;`
+
+const datalinesEndPattern1 = `;`
+const datalinesEndPattern2 = `;;;;`
+
+describe('getDataSectionsDetail', () => {
+  const config = new LintConfig(DefaultLintConfiguration)
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern1}' and '${datalinesEndPattern1}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern1}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern2}' and '${datalinesEndPattern2}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern2}\n${datalines}\n${datalinesEndPattern2}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern3}' and '${datalinesEndPattern1}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern3}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern4}' and '${datalinesEndPattern1}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern4}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern5}' and '${datalinesEndPattern1}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern5}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+
+  it(`should return the detail of data section when it begins and ends with '${datalinesBeginPattern6}' and '${datalinesEndPattern2}' markers`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern6}\n${datalines}\n${datalinesEndPattern2}\n%put world;`
+    expect(getDataSectionsDetail(text, config)).toEqual([
+      {
+        start: 1,
+        end: 5
+      }
+    ])
+  })
+})
+
+describe('checkIsDataLine', () => {
+  const config = new LintConfig(DefaultLintConfiguration)
+  it(`should return true if a line index is in a range of any data section`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern1}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(
+      checkIsDataLine(
+        [
+          {
+            start: 1,
+            end: 5
+          }
+        ],
+        4
+      )
+    ).toBe(true)
+  })
+
+  it(`should return false if a line index is not in a range of any of data sections`, () => {
+    const text = `%put  hello\n${datalinesBeginPattern1}\n${datalines}\n${datalinesEndPattern1}\n%put world;`
+    expect(
+      checkIsDataLine(
+        [
+          {
+            start: 1,
+            end: 5
+          }
+        ],
+        8
+      )
+    ).toBe(false)
+  })
+})

src/utils/getDataSectionsDetail.ts

@@ -0,0 +1,56 @@
+import { LintConfig } from '../types'
+import { splitText } from './splitText'
+
+interface DataSectionsDetail {
+  start: number
+  end: number
+}
+
+export const getDataSectionsDetail = (text: string, config: LintConfig) => {
+  const dataSections: DataSectionsDetail[] = []
+  const lines = splitText(text, config)
+
+  const dataSectionStartRegex1 = new RegExp(
+    '^(datalines;)|(cards;)|(cards4;)|(parmcards;)'
+  )
+  const dataSectionEndRegex1 = new RegExp(';')
+  const dataSectionStartRegex2 = new RegExp('^(datalines4)|(parmcards4);')
+  const dataSectionEndRegex2 = new RegExp(';;;;')
+
+  let dataSectionStarted = false
+  let dataSectionStartIndex = -1
+  let dataSectionEndRegex = dataSectionEndRegex1
+
+  lines.forEach((line, index) => {
+    if (dataSectionStarted) {
+      if (dataSectionEndRegex.test(line)) {
+        dataSections.push({ start: dataSectionStartIndex, end: index })
+        dataSectionStarted = false
+      }
+    } else {
+      if (dataSectionStartRegex1.test(line)) {
+        dataSectionStarted = true
+        dataSectionStartIndex = index
+        dataSectionEndRegex = dataSectionEndRegex1
+      } else if (dataSectionStartRegex2.test(line)) {
+        dataSectionStarted = true
+        dataSectionStartIndex = index
+        dataSectionEndRegex = dataSectionEndRegex2
+      }
+    }
+  })
+
+  return dataSections
+}
+
+export const checkIsDataLine = (
+  dataSections: DataSectionsDetail[],
+  lineIndex: number
+) => {
+  for (const dataSection of dataSections) {
+    if (lineIndex >= dataSection.start && lineIndex <= dataSection.end)
+      return true
+  }
+
+  return false
+}

src/utils/getLintConfig.ts

@@ -17,6 +17,7 @@ export const DefaultLintConfiguration = {
   lowerCaseFileNames: true,
   maxLineLength: 80,
   maxHeaderLineLength: 80,
+  maxDataLineLength: 80,
   noTabIndentation: true,
   indentationMultiple: 2,
   hasMacroNameInMend: true,

src/utils/index.ts

@@ -7,3 +7,4 @@ export * from './listSasFiles'
 export * from './splitText'
 export * from './getIndicesOf'
 export * from './getHeaderLinesCount'
+export * from './getDataSectionsDetail'