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@@ -1,5 +1,4 @@
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-import { assert } from './assert'
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-import { ParserErrorTypes } from './errorTypes'
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+import { ParserErrorTypes } from './parserErrorTypes'
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import {
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Node,
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AttributeNode,
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@@ -60,93 +59,6 @@ export function parse(content: string, options: ParserOptions): RootNode {
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}
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}
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-function last<T>(xs: T[]): T | undefined {
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- return xs[xs.length - 1]
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-}
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-
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-function startsWith(source: string, searchString: string): boolean {
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- return source.startsWith(searchString)
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-}
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-
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-function advanceBy(context: ParserContext, numberOfCharacters: number): void {
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- __DEV__ && assert(numberOfCharacters <= context.source.length)
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-
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- const { column, source } = context
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- const str = source.slice(0, numberOfCharacters)
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- const lines = str.split(/\r?\n/)
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-
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- context.source = source.slice(numberOfCharacters)
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- context.offset += numberOfCharacters
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- context.line += lines.length - 1
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- context.column =
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- lines.length === 1
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- ? column + numberOfCharacters
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- : Math.max(1, lines.pop()!.length)
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-}
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-
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-function advanceSpaces(context: ParserContext): void {
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- const match = /^[\t\r\n\f ]+/.exec(context.source)
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- if (match) {
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- advanceBy(context, match[0].length)
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- }
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-}
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-
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-function getCursor(context: ParserContext): Position {
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- const { column, line, offset } = context
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- return { column, line, offset }
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-}
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-
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-function getNewPosition(
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- context: ParserContext,
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- start: Position,
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- numberOfCharacters: number
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-): Position {
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- const { originalSource } = context
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- const str = originalSource.slice(start.offset, numberOfCharacters)
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- const lines = str.split(/\r?\n/)
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-
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- const newPosition = {
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- column: start.column,
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- line: start.line,
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- offset: start.offset
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- }
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-
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- newPosition.offset += numberOfCharacters
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- newPosition.line += lines.length - 1
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- newPosition.column =
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- lines.length === 1
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- ? start.column + numberOfCharacters
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- : Math.max(1, lines.pop()!.length)
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-
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- return newPosition
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-}
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-
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-function getSelection(
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- context: ParserContext,
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- start: Position,
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- end?: Position
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-): SourceLocation {
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- end = end || getCursor(context)
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- return {
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- start,
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- end,
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- source: context.originalSource.slice(start.offset, end.offset)
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- }
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-}
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-
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-function emitError(
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- context: ParserContext,
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- type: ParserErrorTypes,
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- offset?: number
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-): void {
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- const loc = getCursor(context)
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- if (offset) {
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- loc.offset += offset
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- loc.column += offset
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- }
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- context.onError(type, loc)
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-}
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-
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function createParserContext(
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content: string,
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options: ParserOptions
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@@ -165,6 +77,11 @@ function createParserContext(
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}
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}
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+function getCursor(context: ParserContext): Position {
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+ const { column, line, offset } = context
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+ return { column, line, offset }
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+}
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+
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function parseChildren(
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context: ParserContext,
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mode: TextModes,
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@@ -255,6 +172,88 @@ function parseChildren(
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return nodes
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}
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+function getSelection(
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+ context: ParserContext,
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+ start: Position,
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+ end?: Position
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+): SourceLocation {
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+ end = end || getCursor(context)
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+ return {
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+ start,
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+ end,
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+ source: context.originalSource.slice(start.offset, end.offset)
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+ }
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+}
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+
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+function last<T>(xs: T[]): T | undefined {
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+ return xs[xs.length - 1]
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+}
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+
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+function startsWith(source: string, searchString: string): boolean {
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+ return source.startsWith(searchString)
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+}
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+
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+function advanceBy(context: ParserContext, numberOfCharacters: number): void {
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+ __DEV__ && assert(numberOfCharacters <= context.source.length)
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+
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+ const { column, source } = context
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+ const str = source.slice(0, numberOfCharacters)
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+ const lines = str.split(/\r?\n/)
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+
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+ context.source = source.slice(numberOfCharacters)
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+ context.offset += numberOfCharacters
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+ context.line += lines.length - 1
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+ context.column =
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+ lines.length === 1
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+ ? column + numberOfCharacters
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+ : Math.max(1, lines.pop()!.length)
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+}
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+
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+function advanceSpaces(context: ParserContext): void {
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+ const match = /^[\t\r\n\f ]+/.exec(context.source)
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+ if (match) {
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+ advanceBy(context, match[0].length)
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+ }
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+}
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+
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+function getNewPosition(
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+ context: ParserContext,
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+ start: Position,
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+ numberOfCharacters: number
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+): Position {
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+ const { originalSource } = context
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+ const str = originalSource.slice(start.offset, numberOfCharacters)
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+ const lines = str.split(/\r?\n/)
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+
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+ const newPosition = {
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+ column: start.column,
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+ line: start.line,
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+ offset: start.offset
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+ }
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+
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+ newPosition.offset += numberOfCharacters
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+ newPosition.line += lines.length - 1
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+ newPosition.column =
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+ lines.length === 1
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+ ? start.column + numberOfCharacters
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+ : Math.max(1, lines.pop()!.length)
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+
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+ return newPosition
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+}
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+
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+function emitError(
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+ context: ParserContext,
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+ type: ParserErrorTypes,
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+ offset?: number
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+): void {
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+ const loc = getCursor(context)
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+ if (offset) {
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+ loc.offset += offset
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+ loc.column += offset
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+ }
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+ context.onError(type, loc)
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+}
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+
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function isEnd(
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context: ParserContext,
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mode: TextModes,
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@@ -918,3 +917,9 @@ const CCR_REPLACEMENTS: { [key: number]: number | undefined } = {
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0x9e: 0x017e,
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0x9f: 0x0178
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}
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+
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+function assert(condition: boolean, msg?: string) {
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+ if (!condition) {
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+ throw new Error(msg || `unexpected parser condition`)
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+ }
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+}
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