Deno/std
1
0
Fork 0
mirror of https://github.com/denoland/std.git synced 2024-11-21 12:40:03 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

refactor(yaml): cleanup utility functions (#5886)

Browse Source 
initial commit
This commit is contained in:
Tim Reichen 2024-09-03 00:08:15 +02:00 committed by GitHub
parent f80d8d1519
commit 8abff456f8
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 12 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
yaml/_dumper_state.ts
View File

@ -116,10 +116,10 @@ function generateNextLine(indent: number, level: number): string {
return `\n${" ".repeat(indent * level)}`;
}
// Returns true if the character can be printed without escaping.
// From YAML 1.2: "any allowed characters known to be non-printable
// should also be escaped. [However,] This isn’t mandatory"
// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
/**
* @link https://yaml.org/spec/1.2.2/ 5.1. Character Set
* @return `true` if the character is printable without escaping, `false` otherwise.
*/
function isPrintable(c: number): boolean {
return (
(0x00020 <= c && c <= 0x00007e) ||
@ -129,45 +129,32 @@ function isPrintable(c: number): boolean {
);
}
// Simplified test for values allowed after the first character in plain style.
/**
* @return `true` if value is allowed after the first character in plain style, `false` otherwise.
*/
function isPlainSafe(c: number): boolean {
// Uses a subset of nb-char - c-flow-indicator - ":" - "#"
// where nb-char ::= c-printable - b-char - c-byte-order-mark.
return (
isPrintable(c) &&
c !== BOM &&
// - c-flow-indicator
c !== COMMA &&
c !== LEFT_SQUARE_BRACKET &&
c !== RIGHT_SQUARE_BRACKET &&
c !== LEFT_CURLY_BRACKET &&
c !== RIGHT_CURLY_BRACKET &&
// - ":" - "#"
c !== COLON &&
c !== SHARP
);
}
// Simplified test for values allowed as the first character in plain style.
/**
* @return `true` if value is allowed as the first character in plain style, `false` otherwise.
*/
function isPlainSafeFirst(c: number): boolean {
// Uses a subset of ns-char - c-indicator
// where ns-char = nb-char - s-white.
return (
isPrintable(c) &&
c !== BOM &&
!isWhiteSpace(c) && // - s-white
// - (c-indicator ::=
// “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
isPlainSafe(c) &&
!isWhiteSpace(c) &&
c !== MINUS &&
c !== QUESTION &&
c !== COLON &&
c !== COMMA &&
c !== LEFT_SQUARE_BRACKET &&
c !== RIGHT_SQUARE_BRACKET &&
c !== LEFT_CURLY_BRACKET &&
c !== RIGHT_CURLY_BRACKET &&
// | “#” | “&” | “*” | “!” | “|” | “>” | “'” | “"”
c !== SHARP &&
c !== AMPERSAND &&
c !== ASTERISK &&
c !== EXCLAMATION &&
@ -175,7 +162,6 @@ function isPlainSafeFirst(c: number): boolean {
c !== GREATER_THAN &&
c !== SINGLE_QUOTE &&
c !== DOUBLE_QUOTE &&
// | “%” | “@” | “`”)
c !== PERCENT &&
c !== COMMERCIAL_AT &&
c !== GRAVE_ACCENT